Invention Grant
- Patent Title: Method and apparatus for communication channel estimation
- Patent Title (中): 通信信道估计方法和装置
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Application No.: US11438874Application Date: 2006-05-23
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Publication No.: US07680218B2Publication Date: 2010-03-16
- Inventor: Leif Wilhelmsson , Bo Bernhardsson , Per-Ola Larsson
- Applicant: Leif Wilhelmsson , Bo Bernhardsson , Per-Ola Larsson
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee Address: SE Stockholm
- Agency: Coats & Bennett, P.L.L.C.
- Main IPC: H04L27/06
- IPC: H04L27/06 ; H04W4/00

Abstract:
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.
Public/Granted literature
- US20070092012A1 Method and apparatus for communication channel estimation Public/Granted day:2007-04-26
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