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Transmission power control method, device, device and storage medium

A transmission power control and power technology, which is applied in the field of communication and can solve problems such as power allocation of conflicting PUCCH groups

Active Publication Date: 2022-05-06
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present application provides a transmission power control method, device, device and storage medium, which are used to solve the problem of power allocation of PUCCH groups in the case of DMRS collision or low delay

Method used

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  • Transmission power control method, device, device and storage medium
  • Transmission power control method, device, device and storage medium
  • Transmission power control method, device, device and storage medium

Examples

Experimental program
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Embodiment 1

[0210] figure 2 It is a schematic flowchart of Embodiment 1 of the transmission power control method provided by this application. The solution provided by this embodiment is used to perform power control when transmission overlaps on uplink carriers in multiple PUCCH groups, that is, to solve different transmissions between PUCCH groups. The problem of the PUCCH collision of the uplink carrier with a long duration, such as figure 2 As shown, the transmit power control method includes:

[0211] S101: When there is transmission overlap in the time domain between the uplink carriers in at least two PUCCH groups, the terminal device obtains the minimum reserved power of each PUCCH group according to the transmission duration and / or transmission content, wherein each PUCCH group The downlink transmission time between them is different.

[0212] In this step, in order to perform power control when there is transmission overlap between uplink carriers in multiple PUCCH groups in...

Embodiment 2

[0231] In subsequent embodiments, transmission with a short TTI length (large SCS) is referred to as short transmission; transmission with a long TTI length (small SCS) is referred to as long transmission. In Short TTI, the uplink TTI can be 2, 4, or 7 symbols, and the TTI length of LTE is 14 symbols (that is, 1 millisecond). The long transmission and short transmission in this scheme are relative. In the uplink carrier aggregation transmission Among them, if 2 symbols overlap with 7 symbols, then 2 symbols are short transmission and 7 symbols are long transmission; if 7 symbols overlap with 1ms, then 7 symbols are short transmission and 1ms are long transmission. Subsequent figures of various implementation manners are illustrated by taking 2 symbols and 7 symbols as examples. In NR, similar to the case of LTE, if the SCS is 15KHz, it is a long transmission, and if the SCS is 480KHz, it is a short transmission. The value of SCS can also be 30KHz, 120KHz, etc. The length is a...

Embodiment 3

[0320] The second channel includes a channel that uses time slot aggregation transmission or UCI repeated transmission of uplink control information, and the terminal device controls power and transmits uplink information according to the transmission duration or transmission content of at least two channels, including: the terminal device transmit uplink information on one channel, and reduce the power of the part of the second channel that overlaps with the first channel according to the maximum transmit power; If the power of the overlapping part is less than the preset minimum reserved power, the information of the part overlapping with the first channel in the second channel is discarded. In this solution, the transmission duration of the first channel is shorter than the transmission duration of the slot aggregation transmission carrier or the UCI repetition carrier. Perform power reduction processing on the overlapped part of the slot aggregated transmission carrier or ...

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Abstract

The present application provides a transmit power control method, device, device, and storage medium. The method is applied in a terminal device. When there is transmission overlap in the time domain between uplink carriers in at least two PUCCH groups, the terminal device transmits The duration and / or transmission content obtains the minimum reserved power of each PUCCH group. When transmitting uplink information, according to the maximum transmit power and the minimum reserved power of the uplink carrier of each PUCCH group, the uplink carrier of each PUCCH group The uplink information is transmitted after power reduction. After the power reduction, the transmission power of the uplink carrier cannot be less than the minimum reserved power. If the power of the overlapping part of the uplink carrier in the first PUCCH group is less than the minimum reserved power, discard The information of the overlapping parts of the uplink carriers of the first PUCCH group is described to solve the problem of transmission power allocation in the PUCCH group in the case of low delay.

Description

technical field [0001] The present application relates to communication technologies, and in particular to a transmission power control method, device, device and storage medium. Background technique [0002] The long-term evolution (Long Term Evolution, LTE) is discussing low-latency technology, one of which is the uplink, and the downlink can use the short transmission time interval (Short Transmission Time Interval, sTTI). It has been agreed at the 88th meeting of 3GPP RAN1: the combination of uplink and downlink sTTI lengths can be: {2,2},{2,7},{7,7}. In this way, the user equipment (User Equipment, UE) can use sTTIs of different lengths to transmit different services, such as using sTTIs to transmit services such as small packets and voice, and using traditional TTIs to transmit time-frequency downloaded services with a large amount of data. During carrier aggregation, the downlink TTI lengths in the same physical uplink control channel group (Physical Uplink Control C...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/14H04W52/34
CPCH04W52/146H04W52/34H04W52/367H04W52/346H04W52/325H04W52/281
Inventor 刘哲张兴炜黎超时洁
Owner HUAWEI TECH CO LTD
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