Title:
帯域内オンチャネルラジオ受信機のチャネル状態情報（ＣＳＩ）推定及びアプリケーション
Document Type and Number:
Japanese Patent JP6566974
Kind Code:
B2
Abstract:
A method is provided for estimating channel state information in an in-band on-channel radio signal including a plurality of digitally modulated reference subcarriers. The method includes: receiving symbols transmitted on the reference subcarriers; combining the reference subcarrier symbols with a known reference sequence conjugate to produce a plurality of samples; median filtering the samples to produce filtered samples; smoothing the samples for each of the reference subcarriers over the plurality of reference subcarriers to produce a complex channel gain estimate for each of the subcarriers; and using a bias correction function to compensate for estimation bias error in the complex channel gain estimate due to the median filtering. Receivers that implement the method are also provided.
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Inventors:
Kruger, Brian W.
Peira, Paul Jay.
Peira, Paul Jay.
Application Number:
JP2016575503A
Publication Date:
August 28, 2019
Filing Date:
June 16, 2015
Export Citation:
Assignee:
IBIQUITY DIGITAL CORPORATION
International Classes:
H04L27/26; H04B1/16; H04B17/373
Domestic Patent References:
| JP2009530992A | ||||
| JP2007511980A | ||||
| JP2006506018A | ||||
| JP2002152147A |
Foreign References:
| US20130115903 | ||||
| US20050105657 |
Attorney, Agent or Firm:
Maruyama International Patent Office