Adjustment method of high speed uplink packet access authorization

An adjustment method and high-speed technology, applied in power management, wireless communication, electrical components, etc., can solve problems that have not been raised, and achieve the effect of maintaining stable transmission power and reducing interference

Inactive Publication Date: 2014-07-16
TD TECH COMM TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] At present, no method has been proposed that can effectively overcome the large interference due to the limitation of EVM

Method used

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  • Adjustment method of high speed uplink packet access authorization
  • Adjustment method of high speed uplink packet access authorization
  • Adjustment method of high speed uplink packet access authorization

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Embodiment Construction

[0018] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] The core idea of ​​the present invention is: by tracking the SIR maximum value of the EPUCH signal of the UE, determine the current state of the UE (including the acquisition phase and the stable phase), and adjust according to different strategies according to the different states of the UE. The upper limit of power authorization keeps the terminal transmit power stable and reduces interference.

[0020] figure 1 It is a schematic flow chart of Embodiment 1 of the present invention, such as figure 1 As shown, this embodiment includes the following steps:

[0021] Step 101, the base station judges the currently received enhanced uplink physical channel (EPUCH) signal-to-interference ratio SIR new Is it greater than the currently...

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Abstract

The invention discloses an adjustment method of high speed uplink packet access (HSUPA) authorization. According to the method, through comparing a present received enhanced physical uplink channel (EPUCH) signal-to-noise ratio SIRnew with a present recorded largest EPUCH signal-to-noise ratio SIRmax, a state which UE is in at present is determined, according to different states and different strategy adjustment power authorization upper limits, terminal emission power can be remained stable, and interference can be reduced effectively.

Description

technical field [0001] The invention relates to the power control technology in the mobile communication system, in particular to a high-speed uplink packet access (HSUPA) authorization adjustment method. Background technique [0002] In the mobile communication system, when the base station (NodeB) performs power control, it compares the received signal-to-interference ratio (SIR) with the target signal-to-interference ratio (SIR_TARGET), and if the received signal-to-interference ratio is greater than the target signal-to-interference ratio, it will send a transmission power command ( TPC) down-regulation command word, otherwise send TPC up-regulation command word. [0003] Currently, due to the limitation of Error Vector Magnitude (Error Vector Magnitude, EVM) in the HSUPA terminal, the received signal-to-interference ratio of the signal is limited to the maximum value. After the terminal reaches the limit of the error vector magnitude, the received signal-to-interferenc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/24H04W72/14
Inventor 谢勇贾辉韦江贝王东锋柳斯白杨小倩
Owner TD TECH COMM TECH LTD
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