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HARQ-ACK feedback information transmission method and device

A technology of feedback information and transmission method, applied in the field of transmission of hybrid automatic repeat request acknowledgement feedback information, can solve problems such as HARQ-ACK transmission failure, and achieve the effect of improving communication effectiveness

Active Publication Date: 2021-05-11
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a method and device for transmitting HARQ-ACK feedback information, so as to solve the problem of HARQ-ACK transmission failure caused by the conflict between the physical channel carrying the HARQ-ACK feedback information and unavailable resources

Method used

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  • HARQ-ACK feedback information transmission method and device
  • HARQ-ACK feedback information transmission method and device
  • HARQ-ACK feedback information transmission method and device

Examples

Experimental program
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Effect test

Embodiment 1

[0075] like figure 2 As shown, it is assumed that the network device has configured the PDSCH to HARQ-ACK feedback timing K1 (dl-DataToUL-ACK) with a value of 3 for SPS configuration 1.

[0076] The time when the terminal equipment receives the PDSCH is time slot n, and the first time slot determined according to the above K1=3 is time slot 3, but the network has configured the time slot format, and the transmission direction of time slot n+3 is downlink. Slots cannot be used for HARQ-ACK feedback.

[0077] If the HARQ-ACK feedback information of the SPS configuration 1 is discarded, the network device does not know whether the terminal device receives the SPS service correctly, and the network device needs to dynamically schedule the SPS service to ensure the reliability of transmission, but this will waste system resource utilization Rate.

[0078] Therefore, this embodiment allows the terminal equipment to delay the transmission of the HARQ-ACK bits of SPS configuration ...

Embodiment 2

[0081] In this embodiment, the feedback timing set configured by the network device for the terminal device includes 4 elements (or parameters), which are 2, 3, 4, and 5, respectively.

[0082] like figure 2 As shown, it is assumed that the network device has configured the PDSCH to HARQ-ACK feedback timing K1 (dl-DataToUL-ACK) with a value of 3 for SPS configuration 1.

[0083] The time when the terminal equipment receives the PDSCH is time slot n, and the first time slot determined according to the above K1=3 is time slot 3, but the network has configured the time slot format, and the transmission direction of time slot n+3 is downlink. Slots cannot be used for HARQ-ACK feedback.

[0084] In this embodiment, the terminal device arranges the parameters in the feedback timing set in ascending order, and then checks whether the time slots corresponding to parameters 4 and 5 (greater than the value of the configured feedback timing, that is, 3) are Available time slots (UL ti...

Embodiment 3

[0094] This embodiment may be a supplement to the first and second embodiments above. For the found target available resources, if the PUCCH or PUSCH in the target available resources is not scheduled or configured to send UCI, the UCI is sent through the PUCCH or PUSCH. The HARQ-ACK feedback information described above. The PUCCH or PUSCH in this embodiment may be a channel resource configured or scheduled by the network device for sending HARQ-ACK feedback information.

[0095] If the PUCCH or PUSCH in the target available resource is scheduled or configured to transmit UCI, the HARQ-ACK feedback information and the UCI are multiplexed, and the multiplexed information is transmitted through the PUCCH or PUSCH. The PUCCH or PUSCH in this embodiment may be a channel resource configured or scheduled by the network device for sending HARQ-ACK feedback information. In this embodiment, multiplexing processing is performed on multiple pieces of information, which is convenient to ...

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Abstract

An embodiment of the invention discloses an HARQ-ACK feedback information transmission method and equipment, which are used for solving the problem of HARQ-ACK transmission failure caused by conflict between a physical channel bearing the HARQ-ACK feedback information and unavailable resources. The HARQ-ACK feedback information transmission method can be executed by terminal equipment, and comprises the steps of: if a transmission direction of a symbol set of a time slot where a first resource of a physical channel is located conflicts with a transmission direction of a symbol set of a target time slot, determining an available resource after the first resource, wherein the physical channel is used for bearing the HARQ-ACK feedback information; and sending the physical channe through the available resource, wherein the HARQ-ACK feedback information corresponds to the PDSCH configured by the SPS. Therefore, effective transmission of the HARQ-ACK feedback information can be conveniently realized, and the communication effectiveness is improved.

Description

technical field [0001] Embodiments of the present invention relate to the field of communications, and in particular, to a method and device for transmitting feedback information of Hybrid Automatic Repeat request-Acknowledge (HARQ-ACK). Background technique [0002] For services that appear periodically and have a relatively fixed data packet size, in order to reduce the overhead of downlink control signaling, network devices can use semi-persistent scheduling (SPS) to continuously allocate certain resources to terminal devices for use in The terminal equipment performs periodic service transmission. [0003] Under semi-persistent scheduling, the network device can configure a definite parameter value (dl-DataToUL-ACK) for the terminal device through high-level parameters for the terminal device to perform HARQ-ACK feedback, and this parameter value is used for each subsequent unlicensed HARQ-ACK feedback of Physical Downlink Shared Channel (PDSCH). [0004] When a termin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/02H04W72/04H04L5/00H04L1/18
CPCH04W72/02H04W72/0446H04L5/0055H04L1/1812H04W72/53H04L1/18H04W72/04H04L5/00H04L1/00
Inventor 鲁智潘学明陈晓航
Owner VIVO MOBILE COMM CO LTD
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