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Method and device in UE and base station for power adjustment

A power adjustment and power technology, applied in power management, electrical components, radio transmission systems, etc., to solve problems such as large-scale channel fading differences

Active Publication Date: 2021-06-25
SHANGHAI LANGBO COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the narrow width of the beam, beams pointing in different directions traverse different transmission paths, which results in significant differences in the large-scale channel fading experienced by signals using different beamforming vectors
This difference between beam-related large-scale channel fading brings new problems to uplink power adjustment

Method used

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  • Method and device in UE and base station for power adjustment
  • Method and device in UE and base station for power adjustment
  • Method and device in UE and base station for power adjustment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0200] Embodiment 1 illustrates the flow chart of wireless transmission, as attached figure 1 shown. attached figure 1 In , the base station N1 is the serving cell maintenance base station of the UE U2. attached figure 1 Among them, block F1, block F2, block F3 and block F4 are optional respectively, wherein said block F2 and said block F4 exist or do not exist at the same time, said block F3 and {the The above box F2 and the above box F4} cannot exist at the same time.

[0201]For N1, send G1 wireless signals in step S101; receive the second wireless signal in step S102; receive the uplink wireless signal in step S103; send the third information in step S104; send the first information and The second information; sending the first signaling in step S105; receiving the first wireless signal in step S12.

[0202] For U2, receive G1 wireless signals in step S201; send the second wireless signal in step S202; send the uplink wireless signal in step S203; receive the third in...

Embodiment 2

[0236] Embodiment 2 illustrates the schematic diagram of the components of the first power, as attached figure 2 shown.

[0237] In Embodiment 2, the first power is the smallest one among {second power, power threshold}, and the second power is respectively equal to {first component, second component, third component, fourth component, and The five components, the sixth component} are linearly related. The linear coefficient between the second power and the first component is a first coefficient, the linear coefficient between the second power and the second component is a second coefficient, and the second power and {the The linear coefficients among the third component, the fourth component, the fifth component, and the sixth component} are 1 respectively. First information is used to determine the first coefficient and second information is used to determine the second coefficient. The first coefficient is not less than 0 and not greater than 1, and the second coefficie...

Embodiment 3

[0270] Embodiment 3 illustrates a schematic diagram of the relationship between G1 wireless signals and the first component, as shown in the attached image 3 shown.

[0271] In Embodiment 3, the G1 wireless signals are respectively sent by G1 antenna port groups, the measurement of the G1 wireless signals is used to determine the first component, and the antenna port groups include a positive integer number of antennas port, the G1 is a positive integer greater than 1. The antennas configured by the base station are divided into multiple antenna groups, and each antenna group includes multiple antennas. The antenna port is formed by superimposing multiple antennas in one or more antenna groups through antenna virtualization (Virtualization), and the mapping coefficient of the multiple antennas in the one or more antenna groups to the antenna port Compose the beamforming vectors. One antenna group is connected to the baseband processor through an RF (Radio Frequency, radio ...

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Abstract

The invention discloses a method and a device in a UE and a base station for power adjustment. The UE first receives the first information and the second information, and then sends the first wireless signal. Wherein, the transmission power of the first wireless signal is a first power, the first power is linearly correlated with {first component, second component} respectively, and the linear relationship between the first power and the first component The coefficient is a first coefficient and the linear coefficient between said first power and said second component is a second coefficient. The first information is used to determine the first coefficient, and the second information is used to determine the second coefficient. The first coefficient is not less than 0 and not greater than 1, and the second coefficient is not less than 0 and not greater than 1.

Description

technical field [0001] The present invention relates to a transmission method and device supporting power adjustment in a wireless communication system, and in particular to a transmission scheme and device supporting power adjustment in a wireless communication system in which a large number of antennas are deployed on a base station side. Background technique [0002] Massive MIMO (Multiple Input Multiple Output, Multiple Input Multiple Output) has become a research hotspot in the next generation of mobile communications. In large-scale MIMO, multiple antennas use beamforming to form narrower beams pointing in a specific direction to improve communication quality. Due to the narrow beam width, beams pointing in different directions traverse different transmission paths, which results in significant differences in the large-scale channel fading experienced by signals using different beamforming vectors. This difference between beam-related large-scale channel fading brings...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/24H04B7/0426
CPCH04B7/043H04W52/242H04W52/243H04W52/246
Inventor 张晓博
Owner SHANGHAI LANGBO COMM TECH CO LTD