The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 11, 2021

Filed:

May. 23, 2017
Applicant:

Vodafone Ip Licensing Limited, Newbury, GB;

Inventors:

Razieh Razavi, London, GB;

Timothy Frost, London, GB;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/26 (2006.01); H04B 17/336 (2015.01); H04L 25/02 (2006.01); H04L 25/03 (2006.01);
U.S. Cl.
CPC ...
H04L 27/2607 (2013.01); H04B 17/336 (2015.01); H04L 25/0222 (2013.01); H04L 25/03006 (2013.01);
Abstract

A cyclic prefix is configured for transmissions on a cellular network using a Radio Access Technology based on Orthogonal Frequency Division Multiplexing (OFDM). At a User Equipment (UE) of the cellular network, information is determined for calculating a delay spread for transmission symbols from a base station of the cellular network to the UE. A cyclic prefix for the transmissions is identified based on the determined information. A delay spread can be established from received transmission symbols by: determining a coherence bandwidth based on whether a channel coefficient for each of the transmission symbols varies more than a predefined threshold, the delay spread being established using the determined coherence bandwidth; and/or determining a relationship between a cyclic prefix associated with the transmission symbols and a signal-to-interference-plus-noise ratio, SINR, for the received transmission symbols, the delay spread being established using the determined relationship.


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