Invention Grant
- Patent Title: Frequency error correction for LTE uplink CoMP
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Application No.: US14430699Application Date: 2012-09-24
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Publication No.: US09629158B2Publication Date: 2017-04-18
- Inventor: Xiaoyong Yu , Shirish Nagaraj
- Applicant: NOKIA SIEMENS NETWORKS OY
- Applicant Address: FI Espoo
- Assignee: Nokia Solutions and Networks Oy
- Current Assignee: Nokia Solutions and Networks Oy
- Current Assignee Address: FI Espoo
- Agency: Harrington & Smith
- International Application: PCT/US2012/056842 WO 20120924
- International Announcement: WO2014/046684 WO 20140327
- Main IPC: H04W72/04
- IPC: H04W72/04 ; H04B7/08 ; H04L25/02 ; H04L27/00 ; H04L27/26 ; H04L25/03 ; H04L5/00

Abstract:
A method includes, for a selected user equipment for signals corresponding in part to the selected user equipment and received by antennas from a number of cells, wherein each cell has one or more antennas, and wherein each signal is from an individual one of the antennas, performing the following: estimating carrier frequency offset for each cell using one or more of the signals from the cell; performing frequency offset correction on each signal from each cell by using at least the estimated carrier frequency offset for an associated cell; estimating a channel for each frequency offset corrected signal; and combining, using the estimated channels, each of the frequency offset corrected signals to generate one or more estimates of one or more symbols transmitted from the selected user equipment. A second frequency offset correction may be performed subsequent to the combining. Apparatus, computer programs, and software are also disclosed.
Public/Granted literature
- US20150282171A1 Frequency Error Correction for LTE Uplink CoMP Public/Granted day:2015-10-01
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