公开(公告)号：US20060057965A1

公开(公告)日：2006-03-16

申请号：US11192285

申请日：2005-07-29

申请人： Volker Braun ,  Dietrich Zeller ,  Li Dunlop

发明人： Volker Braun ,  Dietrich Zeller ,  Li Dunlop

IPC分类号： H04B17/00

CPC分类号： H04W36/30

摘要： The present invention provides a method of estimating a channel quality of a wireless data transmission channel on the basis of channel quality indicators. By means of estimating the channel quality an accurate and momentary channel quality of a data transmission channel can be obtained on the basis of non-momentary CQIs that may be subject to measurement inaccuracies, delay or that may feature unacceptable quality due to e.g. high velocity movement of a mobile station. The invention provides determination of the quality and reliability of an obtained channel quality indicator and to select and to successively apply one or a plurality of various estimation procedures in order to determine an accurate and momentary channel quality indicator. Moreover, by making use of an iterative calibration procedure a CQI is determined such that a systematic offset between a defined transmission quality measure and an actually measured transmission quality can be effectively eliminated.

摘要翻译： 本发明提供了一种基于信道质量指示符来估计无线数据传输信道的信道质量的方法。 通过估计信道质量，可以基于可能受测量不准确，延迟或可能由于例如不可接受的质量而具有不可接受的质量的非瞬时CQI来获得数据传输信道的精确和瞬时的信道质量。 移动台的高速运动。 本发明提供了所获得的信道质量指示符的质量和可靠性的确定，并且选择并连续地应用一个或多个各种估计过程，以便确定准确和瞬时的信道质量指示符。 此外，通过使用迭代校准程序，确定CQI，使得可以有效地消除定义的传输质量测量和实际测量的传输质量之间的系统偏移。