Wireless cellular network power control method

A wireless cellular network and power control technology, applied in power management, wireless communication, data exchange network, etc., can solve problems such as link disconnection and terminal inability to jump out, and achieve the effect of improving the quality of downlink signals

Active Publication Date: 2021-06-11
LEADCORE TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a fast exit algorithm for entering the deep fading state by mistake, so as to solve the existing problem that the terminal cannot jump out after entering the deep fading state, resulting in link disconnection

Method used

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  • Wireless cellular network power control method
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  • Wireless cellular network power control method

Examples

Experimental program
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Effect test

Embodiment 1

[0036] image 3 It is a flow chart of a wireless cellular network power control method in a specific embodiment of the present invention, such as image 3As shown, this embodiment provides a wireless cellular network power control method. The wireless cellular network power control method includes: judging whether the terminal enters the deep fading state; if the terminal enters the deep fading state, the SIR when the terminal enters the deep fading state The target value is set as the average value of several SIR target values ​​plus a first incremental value, and the first incremental value is 2dB-4dB, preferably 3dB. The average value of the several SIR target values ​​is the average value of several recent SIR target values ​​when the BLER value is within the range of 0.7 times the BLER target value and 1.3 times the BLER target value. If 0.7BLER target ≤BLER≤1.3BLER target , then calculate the average SIR of several recent SIR target values avg , then SIR avg That is...

Embodiment 2

[0043] Figure 4 It is a flow chart of a wireless cellular network power control method in a specific embodiment of the present invention, such as Figure 4 As shown, different from the previous embodiment, a wireless cellular network power control method proposed in this embodiment includes: judging whether the terminal enters the deep fading state; if the terminal enters the deep fading state, then the terminal enters the SIR of the deep fading state The initial value of the target value is set to the average value of several SIR target values ​​and the average value of the latest SIR target value before the terminal enters the deep fading state, that is, the SIR windup =(SIR agv +SIR tgt ) / 2, the SIR tgt It is the latest SIR target value before entering the deep fading state. The average value of the several SIR target values ​​is the average value of the nearest several SIR target values ​​when the value of BLER is within the range of 0.7 times the BLER target value an...

Embodiment 3

[0047] The wireless cellular network power control method provided in this embodiment includes: if the time for the terminal to enter the deep fading state reaches the time threshold value, and the terminal does not exit the deep fading state, then the SIR target value for the terminal entering the deep fading state is increased by one second Two incremental values, and the time when the terminal enters the deep fading state is cleared, and the second incremental value is 1 dB to 3 dB. Each time a terminal is judged whether to exit the deep fading state, the time timer T for entering the deep fading state windup Increment by 1, and judge the time timer T to enter the deep fading state windup with time threshold T max size, if T windup ≥T max , and the condition for exiting the deep fading state cannot be met, then the SIR target value SIR windup Increase a second incremental value Delta, T windup cleared; if T windup max , and the condition for exiting the deep fading st...

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Abstract

The present invention provides a wireless cellular network power control method. The wireless cellular network power control method proposes two methods for selecting the SIR target value after entering the deep fading state. One is based on the average value of several recent SIR target values A first incremental value is added, and the second is to take the average value of several recent SIR target values ​​and the average value of the latest SIR target value before the terminal enters the deep fading state; by setting the time gate for the terminal to enter the deep fading state limit, the deep fade state timer was added. The present invention quickly calculates the SIR target value suitable for the current channel environment when the channel environment suddenly deteriorates, but it is not a deep fading environment, and the terminal enters the deep fading state, helping the terminal quickly jump out of the deep fading state, and solving the problem of entering deep fading existing in the current scheme It is impossible to jump out after the state, resulting in the problem of link disconnection.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a method for controlling power of a wireless cellular network. Background technique [0002] The service provided by the wireless cellular network for each user needs to meet a certain quality of service (QoS), and the QoS is mainly determined by the signal-to-interference ratio (SIR) of the signal received by each user. Therefore, the allocation of wireless resources by the wireless cellular network, especially the power allocation of each user link, is even more important. For WCDMA systems, although users in the same cell rely on orthogonal spreading codes to isolate each other, due to the use of the same frequency band and time slot, the multipath and delay of the wireless channel will still cause signal interference between users. Power control technology can effectively solve this problem. On the premise of ensuring the transmission quality requirements of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/70
CPCH04W52/241H04W52/362
Inventor 徐畅
Owner LEADCORE TECH
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