Title:
TIME AND FREQUENCY OFFSET ESTIMATION USING REPEATED DATA SYMBOLS
Document Type and Number:
WIPO Patent Application WO/2019/137808
Kind Code:
A1
Abstract:
A method of estimating timing and frequency offsets in a radio frequency signal comprising at least one frame including a plurality of sub-frames (4b,d,g,i). Each sub-frame (4b,d,g,i) comprises a plurality of time positions and a plurality of sub- carrier frequencies. A first instance of a data symbol (70a) is received at a first time position (12.2) on a first sub-carrier frequency (14.2). A second instance of the data symbol (70b) is received at the first time position (12.2) on a second sub-carrier frequency (14.8). A third instance of a data symbol is received at a second time position (12.9) on the first sub-carrier frequency (14.2). The first and second instances of the data symbol (70a, 70b) are correlated to obtain a timing offset estimate. The first and third instances of the data symbol (70a, 70c) are correlated to obtain a frequency offset estimate.
Inventors:
TAPANINEN JUKKA (NO)
Application Number:
PCT/EP2018/086666
Publication Date:
July 18, 2019
Filing Date:
December 21, 2018
Export Citation:
Assignee:
NORDIC SEMICONDUCTOR ASA (NO)
International Classes:
H04L27/26; H04L5/00
Domestic Patent References:
| WO2008082242A1 | 2008-07-10 | |||
| WO2017086662A1 | 2017-05-26 |
Foreign References:
| US20170013481A1 | 2017-01-12 |
Attorney, Agent or Firm:
DEHNS (GB)
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