Power control method and device for partial dedicated physical channel
A special physical and power control technology, applied in the field of communication, can solve the problems of high SIR measurement value, inaccurate SIR measurement value, inability to converge to the CER target value, etc., to achieve the effect of improving accuracy and accurate SIR measurement value
Active Publication Date: 2015-06-24
LEADCORE TECH
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[0017] Obviously, this statistical method is different from the current CER statistical method, so the CER cannot converge to the CER target value stipulated by the protocol using this method; in addition, since there is only one TPC command per time slot, when the fading is severe, the SIR measurement value is inaccurate; At the same time, when the current solution has a low signal-to-noise ratio, the SIR measurement value is too high
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[0055] In order to make the object, technical solution and advantages of the present invention clearer, various embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. However, those of ordinary skill in the art can understand that, in each implementation manner of the present invention, many technical details are provided for readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in each claim of the present application can be realized.
[0056] The first embodiment of the present invention relates to a power control method for some dedicated physical channels, including an outer-loop power control method (referred to as "outer-loop power control") and an inner-loop power control method (referred to as "inner-loop power control") , where the outer loop power ...
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The invention relates to the field of communication, and discloses a power control method and device for a partial dedicated physical channel. According to the power control method for the partial dedicated physical channel, a CER target value obtained through statistics by using an outer loop power control bit inconsistent method is set as a referential CER target value through a mapping relation to enable the statistical result of the bit inconsistent method used in a current scheme to be in accordance with the statistical result of a hard decision method regulated by a protocol, and smoothing processing and polynomial calibration are performed on an SIR measured value in inner loop power control to enable the power control method for the partial dedicated physical channel to be more accurate.
Description
technical field [0001] The invention relates to the communication field, in particular to a power control method and device for some dedicated physical channels. Background technique [0002] The power control technology of F-DPCH (Fractional Dedicated Physical Channel) in WCDMA (Wideband Code Division Multiple Access) system mainly involves the outer loop power control technology and SIR measurement technology. [0003] Power control is a key technology of CDMA system. 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 (quasi) orthogonal characteristics of the spreading code. However, due to the multipath and delay of the wireless channel, the cross-correlation characteristics between the signals of each user are not ideal, and the signals of other users interfere with the signal of the current user. This type of interference is called multiple access interference. When...
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IPC IPC(8): H04W52/24H04W52/12
CPCH04W52/12H04W52/241
Inventor 李丹妮山珊徐兵邓瑞楠
Owner LEADCORE TECH