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Resource mapping method and device for uplink control information UCI

A technology for resource mapping and control information, applied in the field of communication, can solve problems such as UCI cannot be mapped

Active Publication Date: 2021-07-23
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The embodiment of the present application proposes a UCI resource mapping method and its device, which can be used to solve the problem in the related art that UCI cannot be mapped to the PUSCH when the PUCCH overlaps with the PUSCH and there is no DMRS signal in the PUSCH

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  • Resource mapping method and device for uplink control information UCI
  • Resource mapping method and device for uplink control information UCI
  • Resource mapping method and device for uplink control information UCI

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Embodiment Construction

[0054] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary, and are intended to explain the present application, and should not be construed as limiting the present application.

[0055] For ease of understanding, terms involved in this application are firstly introduced.

[0056] 1. Uplink Control Information (UCI)

[0057] The content contained in UCI is information related to the status of the current terminal device, such as whether the current terminal device needs to request uplink resources, the downlink quality detected by the current terminal device, and the number of transmission layers that the terminal device can distinguish.

[0058] 2. Physical Uplink Control Channel (PUCC...

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Abstract

The present application proposes a resource mapping method and device for UCI, the resource mapping method for UCI being executed by a terminal device. The method comprises steps that: the terminal device determines that a physical uplink control channel (PUCCH) and a physical uplink shared channel (PUSCH) are overlapped and that a current first physical uplink shared channel (PUSCH) does not bear a demodulation reference signal (DMRS); the terminal equipment performs resource mapping on the UCI according to the target resource mapping mode of the UCI, and sends the UCI to the network equipment through the mapped resource; wherein the target resource mapping mode is used for mapping the UCI to the PUCSH resource. In the application, not only can the mapping of the UCI on the PUSCH resource be realized under the condition of DMRS missing be realized, but also the data transmission quantity can be improved and the code rate of data transmission can be reduced while the DMRS on the transmission is reduced and the DMRS density is reduced, so that the receiving signal-to-noise ratio and the network coverage are improved.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a resource mapping method and device for uplink control information (Uplink Control Information, UCI). Background technique [0002] In related technologies, the higher the operating frequency of the cellular network, the greater the path loss of its wireless channel. In order to improve the uplink coverage of the New Radio (NR), the data transmission is generally improved by reducing the demodulation reference signal density. When the Physical Uplink Control Channel (PUCCH) overlaps with the Physical Uplink Share CHannel (PUSCH) during communication, it is necessary to use the Demodulation Reference Signal (DMRS) to assist the uplink The control information UCI mapping is transmitted in the PUSCH, but in the case of no DRMS ​​in the PUSCH, there is no mature solution in related technologies. Contents of the invention [0003] The embodiment of the prese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04L5/00H04W72/04
CPCH04L1/1812H04L5/0055H04W72/53H04W72/21H04L5/0051H04L5/0053H04L1/16
Inventor 李媛媛
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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