Invention Grant
- Patent Title: Channel estimation method and system for inter-carrier interference-limited wireless communication network
- Patent Title (中): 用于载波间干扰限制无线通信网络的信道估计方法和系统
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Application No.: US12747407Application Date: 2008-12-11
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Publication No.: US08270547B2Publication Date: 2012-09-18
- Inventor: John P. Panicker , Gary D. Boudreau , Neil McGowan , Vish Nandlall
- Applicant: John P. Panicker , Gary D. Boudreau , Neil McGowan , Vish Nandlall
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.
- Priority: GB0724208.4 20071212
- International Application: PCT/CA2008/002166 WO 20081211
- International Announcement: WO2009/073974 WO 20090618
- Main IPC: H03D1/04
- IPC: H03D1/04
Abstract:
A method and system for wireless communication channel estimation. A frequency offset hypothesis is determined. An interchannel interference (“ICI”) matrix based on the frequency offset hypothesis is generated. Pilot channel estimates based on the ICI matrix are obtained. A correlation error of the pilot channel estimates to the frequency offset hypothesis is calculated. The correlation error is compared with a predetermined correlation error value. The frequency offset hypothesis is updated and the aforementioned steps are iteratively repeated if the correlation error is greater than the predetermined correlation error value. The pilot channel estimates are used to estimate the wireless communication channel.
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