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Method and device for adjusting transmit power in UE and base station

A power adjustment and center frequency technology, applied in the field of transmission power adjustment, can solve problems such as subcarrier interference, destruction of subcarrier orthogonality, interference, etc.

Active Publication Date: 2019-08-09
SHANGHAI LANGBO COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Different subcarrier spacing destroys the orthogonality between subcarriers, which in turn causes interference between subcarriers in the system
At the same time, since the subcarrier spacing adopted by the new air interface technology may be different from the subcarrier spacing of LTE (Long Term Evolution, long-term evolution), the new air interface and LTE may experience stronger interference than between LTE and LTE

Method used

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  • Method and device for adjusting transmit power in UE and base station
  • Method and device for adjusting transmit power in UE and base station
  • Method and device for adjusting transmit power in UE and base station

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0170] Embodiment 1 illustrates the flow chart of wireless signal downlink transmission, as shown in the attached figure 1 shown. attached figure 1 In , base station N1 is the maintenance base station of the serving cell of UE U2, and the steps identified in block F1 are optional.

[0171] for base station N1 , sending the first signaling in step S11, sending the second signaling in step S12, sending the third signaling in step S13, and sending the first wireless signal on the first time-frequency resource in step S14.

[0172] for UE U2 , receiving the first signaling in step S21, receiving the second signaling in step S22, receiving the third signaling in step S23, and receiving the first wireless signal on the first time-frequency source in step S24.

[0173] In Embodiment 1, the first time-frequency resource includes a first sub-time-frequency resource and a second sub-time-frequency resource. The normalized transmission energy of each RU in the first sub-time-frequ...

Embodiment 2

[0186] Embodiment 2 illustrates the schematic diagram of the first time window, as attached figure 2 shown. in the attached figure 2 In , base station N3 is the maintenance base station of the serving cell of UE U4, and the steps identified in block F2 are optional.

[0187] for base station N3 , sending the first signaling in step S31, sending the third signaling in step S32, sending the second signaling in step S33, and receiving the first wireless signal on the first time-frequency resource in step S14.

[0188] for UE U4 , receiving the first signaling in step S41, receiving the third signaling in step S42, receiving the second signaling in step S43, and sending the first wireless signal on the first time-frequency source in step S44.

[0189] In Embodiment 2, wherein the first time-frequency resource includes a first sub-time-frequency resource and a second sub-time-frequency resource. The normalized transmission energy of each RU in the first sub-time-frequency ...

Embodiment 3

[0204] Embodiment 3 illustrates a schematic diagram of the relationship between the first sub-time-frequency resource and the second sub-time-frequency resource, as shown in the attached image 3 shown. in the attached image 3 , the horizontal axis represents time, the vertical axis represents frequency, the area filled with oblique lines represents the first sub-time-frequency resource, and the area filled with vertical lines represents the second sub-time-frequency source. In Embodiment 3, the first time-frequency resource includes a first sub-time-frequency resource and a second sub-time-frequency resource, the first sub-time-frequency resource is different from the second sub-time-frequency resource, and the first sub-time-frequency resource The time-frequency resource and the second sub-time-frequency resource occupy the same time interval in the time domain.

[0205] In sub-embodiment 1 of embodiment 3, the subcarrier spacing in the first time-frequency resource is eq...

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Abstract

The invention discloses a method and a device for adjusting transmission power in a UE and a base station. The UE sends the first wireless signal on the first time-frequency resource; or receives the first wireless signal on the first time-frequency resource. Wherein, the first time-frequency resource includes a first sub-time-frequency resource and a second sub-time-frequency resource, the first sub-time-frequency resource is different from the second sub-time-frequency resource, and the first sub-time-frequency resource The resource occupies the same time interval as the second sub-time-frequency resource in the time domain. The normalized transmission energy of each RU in the first sub-time-frequency resource of the first wireless signal is the first energy, and each of the first wireless signal in the second sub-time-frequency resource The normalized emission energy of the RU is the second energy. The first energy and the second energy are not equal. The method disclosed by the invention can reduce the interference between different mathematical structure areas in the system and the interference between different systems, and improve the spectrum utilization rate.

Description

technical field [0001] The present application relates to a transmission scheme in a wireless communication system, in particular to a method and device for adjusting transmission power. Background technique [0002] The application scenarios of future wireless communication systems are becoming more and more diversified, and different application scenarios put forward different performance requirements for the system. In order to meet the different performance requirements of various application scenarios, the new air interface technology (NR, New Radio) for research. [0003] In order to be able to flexibly adapt to a variety of different application scenarios, future wireless communication systems, especially NR, will be able to support multiple numerology structures. CP (Cyclic Prefix, cyclic prefix) length, etc. Different subcarrier spacing destroys the orthogonality between subcarriers, thereby causing interference between subcarriers in the system. At the same tim...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/14H04W52/24
CPCH04W52/14H04W52/243H04W52/24
Inventor 张晓博
Owner SHANGHAI LANGBO COMM TECH CO LTD
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