Invention Grant
- Patent Title: Turbo channel estimation for OFDM systems
- Patent Title (中): OFDM系统的Turbo信道估计
-
Application No.: US13557736Application Date: 2012-07-25
-
Publication No.: US08681887B2Publication Date: 2014-03-25
- Inventor: Titus Lo , Ruifeng Wang
- Applicant: Titus Lo , Ruifeng Wang
- Applicant Address: US GA Atlanta
- Assignee: AT&T Mobility II LLC
- Current Assignee: AT&T Mobility II LLC
- Current Assignee Address: US GA Atlanta
- Agency: Abel Law Group, LLP
- Main IPC: H04L27/28
- IPC: H04L27/28

Abstract:
A system and method for estimating a channel in a wireless receiver is disclosed. The method comprises receiving a block of “n” transmitted symbols, the symbols including pilot symbols and “d” data symbols, estimating a channel using the pilot symbols to create a channel estimate, choosing a group of “m” strongest symbols from the “d” received symbols, compensating the “m” strongest symbols using the channel estimate to create a group of “m” compensated symbols, re-estimating the channel using the group of “m” compensated symbols and pilot symbols; and either (1) repeating the steps of choosing a group of “m” strongest symbols, compensating the group of “m” strongest symbols and re-estimating the channel, or (2) using a latest channel estimate to compensate all symbols within the block. The system comprises a wireless receiver having an estimator programmed according to the method.
Public/Granted literature
- US20130022161A1 TURBO CHANNEL ESTIMATION FOR OFDM SYSTEMS Public/Granted day:2013-01-24
Information query