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Signal-to-interference ratio target value regulating method and device in outerloop power control

A technology of outer loop power control and adjustment method, which is applied in the direction of transmission control/equalization, advanced technology, climate sustainability, etc., and can solve the problems of increasing power consumption, slow reduction of SIRtar value, and slow decline of mobile station transmission power, etc. problem, to achieve the effect of accelerating the decline and reducing power loss

Active Publication Date: 2007-11-07
XFUSION DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] It can be seen that in the prior art methods for adjusting the SIRtar value, there is a problem that the transmission power of the mobile station decreases slowly due to the slow reduction of the SIRtar value, thereby increasing the power consumption

Method used

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  • Signal-to-interference ratio target value regulating method and device in outerloop power control
  • Signal-to-interference ratio target value regulating method and device in outerloop power control
  • Signal-to-interference ratio target value regulating method and device in outerloop power control

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] Embodiment one (k=1, a=0.5, n=2)

[0066] Then the down-regulation steps of SIRtar in the two outer loop power control cycles of the first stage are: 0.5UpStep and 0.25UpStep respectively, and the number of outer loop power control cycles included in the second stage is:

[0067]

[0068] Assuming that an erroneous block is received in the Mth outer loop power control cycle, and the outer loop power control cycle after the Mth outer loop power control cycle continuously receives correct blocks, then the outer loop power control method of this embodiment adjusts the The adjustment curve is shown in Figure 2, including the following process:

[0069] In the Mth outer loop power control cycle, adjust the SIRtar to rise according to the rising step size UpStep;

[0070] Adjust the SIRtar drop by 0.5UpStep in the M+1th outer loop power control cycle, and adjust the SIRtar drop by 0.25UpStep in the M+2th outer loop power control cycle. This process is the first stage;

...

Embodiment 2

[0076] Embodiment two (k=1 / 9, a=0.9, n=10)

[0077] Referring to the curve shown in Figure 3, the outer loop power control in this embodiment specifically includes the following processes:

[0078] In the Rth outer loop power control cycle, adjust the SIRtar up according to the up step UpStep;

[0079] In the R+1th to R+10th outer loop power control cycle, adjust the SIRtar down according to the corresponding step size, wherein, the downward adjustment step size in the R+ith outer loop power control cycle is 1 / 9*0.9 i *UpStep, the above i=1,...,10, this stage is the first stage;

[0080] In the R+11th to R+u2+10th outer loop power control cycle, the SIRtar is not adjusted, that is, the SIRtar is kept unchanged, and this stage is the second stage;

[0081] After the first R+u2+10, each outer loop power control cycle adjusts the SIRtar down according to the average down step DnStep;

[0082] In this adjustment process, no matter which outer loop power control cycle receives a...

Embodiment 3

[0086] After the SIRtar is adjusted according to the upward step UpStep, a downward adjustment process is started. In the first stage of the downward adjustment process, the adjustment value in the i (i=1,...,n3) outer loop power control cycle is Ci*UpStep, Ci >Cj>0(i

[0087] UpStep ≥ Σ i = 1 n 3 Ci * UpStep > n 3 * ( BLERtar - BLERmeas ) 1 - BLERtar * UpStep .

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Abstract

A method for regulating object value of signal to jamming ratio includes down-regulating at least once of signal to jammi9ng ratio object value in each external ring control period with service data block error-block rate being continuously lower than object error-block rate, continuously down-regulating object value of signal to jamming ratio after sum-up of over said down-regulation step length is divided by DnStep numbers of external ring control period and making object value down-regulation step length of signal to jamming ratio in each external ring control period be DnStep.

Description

technical field [0001] The invention relates to a power control technology of a mobile communication system, in particular to a method and a device for adjusting a signal-to-interference ratio target value in outer loop power control. Background technique [0002] The service provided by the wireless cellular network for each user needs to meet certain service quality requirements, but the service quality is mainly determined by the SIR (Signal-to-Inference Ratio, signal-to-interference ratio) of each user's received signal. Therefore, the allocation of wireless resources by the wireless cellular network, especially the power allocation of each user link, is even more important. For the CDMA cellular system, all users in the same cell use the same frequency band and time slot, and the users are isolated from each other only by the orthogonal characteristic (or quasi-orthogonal characteristic) of the spreading code. However, due to the multipath and delay of the wireless cha...

Claims

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Application Information

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IPC IPC(8): H04B7/005
CPCY02D30/70
Inventor 伏玉笋吴玉忠张岩强戴丁樟
Owner XFUSION DIGITAL TECH CO LTD
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