Unlock instant, AI-driven research and patent intelligence for your innovation.

A method and device for determining harq-ack codebook

A technology for requesting acknowledgment and aggregation, applied in transmission path sub-channel allocation, digital transmission system, signaling distribution, etc., can solve problems such as inability to determine HARQ-ACK codebook, different candidate sets, etc., to avoid inconsistencies in understanding and ensure correct decoding. Effect

Active Publication Date: 2022-02-22
DATANG MOBILE COMM EQUIP CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present application provides a method and device for determining a HARQ-ACK codebook, which is used to solve the problem in the prior art that the candidate sets of the timing relationship between the downlink transmission corresponding to different DCI formats and the corresponding HARQ-ACK feedback are different, resulting in the current There are technical solutions that cannot determine the technical problems of the HARQ-ACK codebook

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method and device for determining harq-ack codebook
  • A method and device for determining harq-ack codebook
  • A method and device for determining harq-ack codebook

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] The following is attached with the manual figure 2 Step 20 provides a further detailed description of a method for determining the HARQ-ACKcodebook provided in the embodiment of the present application (the method is implemented based on the terminal-side device). The specific implementation of the method may include the following steps:

[0068] Step 201, the terminal determines the first value set of the timing relationship between the downlink transmission corresponding to the fallback fallback downlink control information DCI format and the hybrid automatic repeat request confirmation HARQ-ACK feedback and the non-fallback non-fallback DCI format corresponding A second set of values ​​for the timing relationship between downlink transmission and HARQ-ACK feedback;

[0069] The value set of the timing relationship between PDSCH and HARQ-ACK corresponding to DCI format 1_0 is predefined in the protocol as K1={1,2,3,4,5,6,7,8}; then the first A set of values ​​is K1=...

Embodiment 2

[0087] Such as image 3 As shown, the embodiment of the present application also provides a method for determining the HARQ-ACK codebook, the method including:

[0088] Step 301, the base station determines the first value set of the timing relationship between the downlink transmission corresponding to the fallback downlink control information DCI format and the hybrid automatic repeat request confirmation HARQ-ACK feedback and the downlink transmission corresponding to the non-fallback DCI format to the HARQ - a second set of values ​​for the timing relationship between ACK feedbacks;

[0089] Step 302: Determine the number of bits of the HARQ-ACK codebook according to the values ​​in the first value set and the second value set.

[0090] Optionally, the HARQ-ACK codebook is a semi-static semi-static HARQ-ACK codebook.

[0091] After the base station determines the number of bits of the HARQ-ACK codebook, it can receive the HARQ-ACK codebook according to the number of bits...

Embodiment 3

[0100] In order to illustrate the method provided in the embodiment of the present application in more detail, the method provided in the embodiment of the present application will be described below in conjunction with specific examples, including:

[0101] If the network side configures the timing relationship between PDSCH and HARQ-ACK in DCI format 1_1 through high-level signaling (that is, the value set of downlink HARQ-ACK timing) is K1={0,1,2,3,4,5 , 6, 7} (that is, the second value set), that is, the downlink transmission (PDSCH or PDCCH indicating the release of downlink SPS resources) transmitted in slot n can perform HARQ-ACK feedback in slot n+K1, wherein, for each A downlink transmission, the PDCCH using DCI format 1_1 that schedules the downlink transmission notifies a value in the K1 value set to the terminal; the value of the timing relationship between the PDSCH corresponding to DCI format 1_0 and the HARQ-ACK is predefined in the protocol The set is K1={1, 2,...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present application discloses a method and device for determining the HARQ-ACK codebook, the method comprising: the terminal determines the timing relationship between the downlink transmission corresponding to the fallback downlink control information DCI format and the hybrid automatic repeat request confirmation HARQ-ACK feedback The first value set and the second value set of the timing relationship between downlink transmission and HARQ-ACK feedback corresponding to the non-fallback non-fallback DCI format; according to the first value set and the second value set The values ​​in the value set determine the HARQ-ACK codebook codebook. It solves the technical problem in the prior art that the HARQ-ACK codebook cannot be determined in the prior art solution due to the different candidate sets of the timing relationship between the downlink transmission corresponding to the different DCI formats and the corresponding HARQ-ACK feedback.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a method and device for determining a HARQ-ACK codebook. Background technique [0002] With the development and change of mobile communication service requirements, the demand for a new wireless communication system (5 Generation NewRAT, 5G NR) is becoming more and more urgent. The system can support flexible timing relationships in current 5G NR designs. For the Physical Downlink Shared CHannel (PDSCH), the Physical Downlink Control Channel (PDCCH) carrying its scheduling information indicates the scheduling timing relationship (Scheduling timing) between PDSCH and PDCCH and the corresponding PDSCH to it The feedback timing relationship (HARQ-ACK timing) between hybrid automatic repeat request acknowledgments (HARQ-ACK). Such as figure 1 As shown, the time domain resource allocation indication field in the downlink control information (Downlink Control ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/16H04L1/18H04L5/00
CPCH04L1/1607H04L1/1812H04L5/0055
Inventor 高雪娟邢艳萍
Owner DATANG MOBILE COMM EQUIP CO LTD