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Power control method and device

A technology of power control and power control parameters, which is applied in the field of communication, can solve problems such as system interference and affect link transmission efficiency and stability, and achieve the effect of improving effectiveness and reducing internal interference of the system

Active Publication Date: 2012-04-04
HUAWEI TECH CO LTD
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Problems solved by technology

[0009] During the research and practice of the prior art, the inventors of the present invention have found that effective power control is not used in the existing packet domain, one of the reasons is that the usual power control method adjusts the transmit power of the MS , it is easy to cause internal system interference to the LA control process running at the same time, affecting the transmission efficiency and stability of the link

Method used

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Embodiment Construction

[0018] The embodiment of the present invention provides a power control method, which performs closed-loop power control when the LA adjustment state remains stable, and makes power adjustment within the CIR threshold according to the corresponding relationship between the current LA adjustment state and the CIR threshold. The embodiment of the present invention also provides a corresponding closed-loop power control device. Each will be described in detail below.

[0019] The basic flow of the power control method in the embodiment of the present invention can be referred to figure 1 , this method is applicable to the power control of the uplink of the MS by the network side. Of course, the power control of the downlink from the network side to the MS can also be implemented by reference. The method mainly includes steps:

[0020] A1. Determine that the link adaptive adjustment state remains stable.

[0021] The link adaptive (LA) adjustment state referred to in this artic...

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Abstract

The invention discloses a power control method which carries a closed loop power control when a link adaptation (LA) regulating state remains stable; according to the corresponding relationship between the current LA regulating state and the carrier-to-interference (C / I) threshold, the power regulation is carried in such C / I threshold. The invention also provides a corresponding closed loop powercontroller. The invention has the technical scheme that the process of the power control is enabled to be based on the LA regulating method and the influence of the power control on LA regulation istried to be avoided, thereby reducing the system inner disturbance of the packet domain business and improving the effectiveness of the power control.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a power control method and device for transmitting power of a link carrier. Background technique [0002] With the rapid development of mobile communication technology, wireless data technology has increasingly become the focus of attention in the mobile field. At present, the packet data service of the mobile communication network is mainly carried by a General Packet Radio Service (GPRS: General Packet Radio Service) network. The GPRS network is the evolution and extension of the Global System for Mobile communications (GSM: Global System for Mobile communications) network, mainly adding packet services. Various enhanced evolution technologies of GPRS can provide higher data rates, such as Enhanced Data rates for GSM Evolution (EDGE, Enhanced Data rates for GSM Evolution) and the like. In these access networks, packet service data is usually transmitted through a Packe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/005
CPCY02D30/70
Inventor 刘明张振华耿云郭宏伟
Owner HUAWEI TECH CO LTD
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