Uplink control channel configuration method and device

A configuration method and control channel technology, which is applied in transmission path sub-channel allocation, signaling allocation, wireless communication, etc., can solve problems such as low system efficiency and achieve the effect of improving system efficiency

Active Publication Date: 2021-06-04
CHINA ACADEMY OF INFORMATION & COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case that the terminal equipment has actually correctly obtained the PDSCH of the SPS, the system efficiency is low
[0006] The above problems are especially serious when the cycle of SPS configuration is very short

Method used

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  • Uplink control channel configuration method and device
  • Uplink control channel configuration method and device
  • Uplink control channel configuration method and device

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Embodiment Construction

[0050] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0051] The technical solutions provided by various embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

[0052] figure 1 Schematic diagram of cancellation of HARQ-ACK feedback corresponding to PDSCH configured for SPS in TDD system.

[0053] Take the configuration period of SPS as o...

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Abstract

The invention discloses a configuration method of an uplink control channel, which is used for configuring at least two PUCCH (Physical Uplink Control Channel) sets when HARQ-ACK (Hybrid Automatic Repeat reQuest-Acknowledgement) feedback of a PDSCH (Physical Downlink Shared Channel) configured by an SPS (Space Point Scheduling) is canceled due to a configuration conflict, and each PUCCH set comprises at least one PUCCH; wherein the first PUCCH is one with the largest capacity in the first PUCCH set, the second PUCCH is one with the largest capacity in the second PUCCH set, and the capacity of the second PUCCH is larger than that of the first PUCCH; in the target time unit, when the number of the delayed HARQ-ACKs supported in the UCI is not greater than a preset value, determining a target PUCCH in the first PUCCH set, and when the number of the delayed HARQ-ACKs supported in the UCI is greater than the preset value, determining the target PUCCH in the second PUCCH set; the target PUCCH is used for bearing the UCI. The invention further comprises a device applying the method. According to the method and the device, the technical problem of how to transmit the delayed HARQ-ACK when the PUCCH is cancelled under the configuration conflict condition is solved.

Description

technical field [0001] The present application relates to the technical field of wireless communication, and in particular to a method and device for configuring an uplink control channel. Background technique [0002] Semi-persistent scheduling SPS (Semi-Persistent Scheduling, or semi-persistent scheduling) is different from sending physical downlink control information to the terminal device UE every time the network device schedules the physical downlink shared channel PDSCH or the physical uplink shared channel PUSCH during dynamic scheduling. SPS scheduling allows PDSCH or PUSCH resources to be allocated to a specific UE periodically through one physical downlink control channel PDCCH scheduling. In this process, the base station uses the PDCCH scrambled by the CS-RNTI to designate radio resources used by the UE (herein referred to as SPS resources), and the UE uses the SPS resources to receive or send data every cycle. The base station does not need to send the PDCCH ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W72/12H04L1/18H04L5/00
CPCH04W72/0446H04L1/1812H04L5/0055H04W72/23
Inventor 王志勤闫志宇沈霞焦慧颖杜滢
Owner CHINA ACADEMY OF INFORMATION & COMM
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