公开(公告)号：US07680218B2

公开(公告)日：2010-03-16

申请号：US11438874

申请日：2006-05-23

申请人： Leif Wilhelmsson ,  Bo Bernhardsson ,  Per-Ola Larsson

发明人： Leif Wilhelmsson ,  Bo Bernhardsson ,  Per-Ola Larsson

IPC分类号： H04L27/06 ,  H04W4/00

CPC分类号： H04L25/023 ,  H04L25/0204 ,  H04L25/022 ,  H04L27/2608 ,  H04L27/2647

摘要： A method and apparatus for predicting channel estimates for non-received signal frequencies provides knowledge of propagation channel characteristics for non-received frequencies. One embodiment predicts uplink (or downlink) channel estimates based on measured downlink (or uplink) channel estimates, which is advantageous in systems having different uplink and downlink frequencies. Another embodiment predicts channel responses for non-received OFDM sub carrier frequencies based on measuring channel responses for received OFDM sub carrier frequencies. Such processing may comprise, for example, measuring channel responses for received OFDM pilot sub carriers, predicting channel responses at frequency intervals corresponding to pilot sub carrier spacing, and interpolating between those values to predict channel responses at data sub carrier frequencies.

摘要翻译： 用于预测未接收信号频率的信道估计的方法和装置提供了对于未接收频率的传播信道特性的知识。 一个实施例基于测量的下行链路（或上行链路）信道估计来预测上行链路（或下行链路）信道估计，这在具有不同的上行链路和下行链路频率的系统中是有利的。 另一个实施例基于对接收的OFDM子载波频率的测量信道响应来预测未接收的OFDM子载波频率的信道响应。 这样的处理可以包括例如测量接收的OFDM导频子载波的信道响应，以对应于导频子载波间隔的频率间隔预测信道响应，以及在这些值之间内插以预测数据子载波频率处的信道响应。