Invention Grant
US09461855B2 Methods and arrangements for selecting channel updates in wireless networks
有权
在无线网络中选择频道更新的方法和安排
- Patent Title: Methods and arrangements for selecting channel updates in wireless networks
- Patent Title (中): 在无线网络中选择频道更新的方法和安排
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Application No.: US13730993Application Date: 2012-12-29
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Publication No.: US09461855B2Publication Date: 2016-10-04
- Inventor: Thomas J. Kenney , Eldad Perahia , Shahrnaz Azizi
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Schubert Law Group PLLC
- Main IPC: H04L27/22
- IPC: H04L27/22 ; H04L27/26 ; H04L5/00 ; H04L25/02 ; H04L25/03

Abstract:
Pilot logic may determine based upon channel and phase information how to process pilot tones that shift locations every N symbols in an orthogonal frequency division multiplexing (OFDM) packet transmission. Pilot logic may determine a signal-to-noise ratio (SNR) for the channel to determine how to process the shifting pilot tones. Pilot logic may also determine channel and phase information updates such as channel state information and phase correction information from pilot tones. In situations of high SNR, logic may use channel estimates and phase rotations that are obtained from locations of the pilot tones for phase tracking and updating the equalizer. In situations of low SNR, logic may use the phase rotations for phase tracking and not update the equalizer during the OFDM transmission. Logic may also determine the presence or absence of a Doppler effect on the transmission and transmit a selection for N to an access point in response.
Public/Granted literature
- US20140010324A1 METHODS AND ARRANGEMENTS FOR SELECTING CHANNEL UPDATES IN WIRELESS NETWORKS Public/Granted day:2014-01-09
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