PUSCH (physical uplink shared channel) power control method and PUSCH power control device

A power control and power technology, which is applied in the field of communication and can solve problems such as inability to adapt to different scenarios, unstable system interference, and large impact on edge user performance.

Active Publication Date: 2014-12-31
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0069] It can be seen that the current uplink PUSCH power control does not take into account the influence of interference between adjacent cells, but only considers the fixed interference or the interference measured by the base station itself
The method of power control based on fixed interference is simple, but it cannot adapt to different scenarios
The base station performs power control based on its own measured interference, which does not require exchange of information between base stations. Ho

Method used

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  • PUSCH (physical uplink shared channel) power control method and PUSCH power control device
  • PUSCH (physical uplink shared channel) power control method and PUSCH power control device
  • PUSCH (physical uplink shared channel) power control method and PUSCH power control device

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Embodiment Construction

[0080] The embodiment of the present invention provides a PUSCH power control method and device, which determines the interference situation of the neighbor cell by itself through the interference level information sent by the neighbor cell, and then adjusts the PUSCH power of the user in the current cell, so as to realize the Interference for power control.

[0081] Such as figure 1 As shown, the PUSCH power control method provided by the embodiment of the present invention includes:

[0082] Step S101, receiving interference level information sent by neighboring cells;

[0083] Step S102, count the number of each interference level in the interference level information of each neighboring cell, and adjust the PUSCH power of the user in the current cell according to the statistical result.

[0084] The PUSCH power control method provided by the embodiment of the present invention is to determine the up-regulation power or down-regulation power according to the OI informatio...

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Abstract

The invention relates to communication technology and discloses a PUSCH (physical uplink shared channel) power control method and a PUSCH power control device. PUSCH power of a current cell user is adjusted by determining own conditions of interference to adjacent cells according to interference level information sent by the adjacent cells, and accordingly power control according to interference between the adjacent cells is realized.

Description

technical field [0001] The present invention relates to communication technology, in particular to a PUSCH power control method and device. Background technique [0002] The LTE (Long Term Evolution, long-term evolution) system uses OFDM (Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing) technology as the basis for packet data transmission. Interference is too high. [0003] According to whether the transmission power is determined by the sender or the receiver, power control can be divided into two types: open-loop power control and closed-loop power control. The way in which the sender determines its transmit power based on its knowledge of the channel is called open-loop power control. The advantage of open-loop power control is that no additional signaling overhead is required; however, the disadvantage is that the understanding of the channel by the transmitter often deviates from the reality, so open-loop power control based on i...

Claims

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Application Information

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IPC IPC(8): H04W52/14H04W52/24
Inventor 徐明宇李琼
Owner DATANG MOBILE COMM EQUIP CO LTD
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