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PUCCH sending method, PUCCH receiving method, terminal and base station

A technology of a sending method and a receiving method, which is applied in the communication field and can solve problems such as the increase of HARQ-ACK feedback delay

Active Publication Date: 2020-02-21
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a PUCCH sending method, a receiving method, a terminal, and a base station to solve the problem that the current method of transmitting a PUCCH carrying HARQ-ACK tends to increase the feedback delay of the HARQ-ACK transmitted earlier in time. question

Method used

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  • PUCCH sending method, PUCCH receiving method, terminal and base station
  • PUCCH sending method, PUCCH receiving method, terminal and base station
  • PUCCH sending method, PUCCH receiving method, terminal and base station

Examples

Experimental program
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Effect test

example 1

[0196] According to K1 (feedback timing) corresponding to each PDSCH, it is determined that multiple PDSCHs perform HARQ-ACK feedback in the same time slot. For example, if K1=4 corresponding to the PDSCH in time slot n, it is determined to perform HARQ-ACK feedback in time slot n+4; if K1=3 corresponding to the PDSCH in time slot n+1, it is determined to perform HARQ-ACK feedback in time slot n+1 HARQ-ACK feedback is performed in +3=n+4; K1=2 corresponding to the PDSCH in time slot n+2, then it is determined to perform HARQ-ACK feedback in time slot n+2+2=n+4; time slot If K1=1 corresponding to the PDSCH in n+3, it is determined to perform HARQ-ACK feedback in time slot n+3+1=n+4.

[0197] Assume that the PRI in the DCI used by the PDCCH corresponding to the PDSCH transmitted in time slot n is "000", and C-DAI=1; the PRI in the DCI used in the PDCCH corresponding to the PDSCH transmitted in time slot n+1 is "010", C-DAI=1; the PRI in the DCI used by the PDCCH corresponding t...

example 2

[0205] According to K1 (feedback timing) corresponding to each PDSCH, it is determined that multiple PDSCHs perform HARQ-ACK feedback in the same time slot. For example, if K1=4 corresponding to the PDSCH in time slot n, it is determined to perform HARQ-ACK feedback in time slot n+4; if K1=3 corresponding to the PDSCH in time slot n+1, it is determined to perform HARQ-ACK feedback in time slot n+1 HARQ-ACK feedback is performed in +3=n+4; K1=2 corresponding to the PDSCH in time slot n+2, then it is determined to perform HARQ-ACK feedback in time slot n+2+2=n+4; time slot If K1=1 corresponding to the PDSCH in n+3, it is determined to perform HARQ-ACK feedback in time slot n+3+1=n+4.

[0206] Assume that the PRI in the DCI used by the PDCCH corresponding to the PDSCH transmitted in slot n is "000"; the PRI in the DCI used by the PDCCH corresponding to the PDSCH transmitted in slot n+1 is "000" or " 001" (the PUCCH resource indicated by the PRI of "001" overlaps with the PUCCH res...

example 3

[0213] According to K1 (feedback timing) corresponding to each PDSCH, it is determined that multiple PDSCHs perform HARQ-ACK feedback in the same time slot. For example, if K1=4 corresponding to the PDSCH in time slot n, it is determined to perform HARQ-ACK feedback in time slot n+4; if K1=3 corresponding to the PDSCH in time slot n+1, it is determined to perform HARQ-ACK feedback in time slot n+1 HARQ-ACK feedback is performed in +3=n+4; K1=2 corresponding to the PDSCH in time slot n+2, then it is determined to perform HARQ-ACK feedback in time slot n+2+2=n+4; time slot If K1=1 corresponding to the PDSCH in n+3, it is determined to perform HARQ-ACK feedback in time slot n+3+1=n+4.

[0214] Assume that the PRI in the DCI used by the PDCCH corresponding to the PDSCH transmitted in time slot n is "000"; the PRI in the DCI used by the PDCCH corresponding to the PDSCH transmitted in time slot n+1 is "001" (PRI The PUCCH resource indicated by "001" overlaps with the PUCCH resource...

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Abstract

The present invention provides a PUCCH sending method, a PUCCH receiving method, a terminal and a base station. The PUCCH sending method comprises the steps: receiving at least two downlink transmissions, HARQ-ACKs of the at least two downlink transmissions being transmitted in the same time unit; determining PUCCH resources for transmitting HARQ-ACKs of the at least two downlink transmissions according to the PUCCH resources indicated by the PRI in the downlink control information DCI used by the PDCCHs corresponding to the at least two downlink transmissions respectively; and sending the corresponding HARQ-ACK of the downlink transmission on the determined PUCCH resource, so that the rapid HARQ-ACK feedback can be realized, and the HARQ-ACK feedback time delay is reduced.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular to a PUCCH (Physical Uplink ControlCHannel, Physical Uplink Control Channel) sending method, receiving method, terminal and base station. Background technique [0002] In the wireless communication system, considering the complexity of implementation and standardization, currently only supports the transmission of a PUCCH carrying HARQ-ACK (Hybrid Automatic Repeat reQuest Acknowledgment, Hybrid Automatic Repeat Request Acknowledgment) in one time slot. Timing determines that multiple HARQ-ACKs that need to be transmitted in the same time slot are all transmitted on the same PUCCH. For example, HARQ-ACK of one or more PDSCHs (Physical Downlink Shared CHannel, physical downlink shared channel) that needs to be fed back by HARQ-ACK in the same time slot and / or indicate downlink SPS (Semi-persistent Scheduling, semi-persistent scheduling) The HARQ-ACK of the PDCCH ...

Claims

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Application Information

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IPC IPC(8): H04L5/00H04L1/18
CPCH04L5/0055H04L1/1861H04L1/1893H04L1/18H04L5/00H04W72/04
Inventor 高雪娟
Owner DATANG MOBILE COMM EQUIP CO LTD
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