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.
Patent No.:
Date of Patent:
Feb. 07, 2017
Filed:
Feb. 08, 2013
Vodafone Ip Licensing Limited, Berkshire, GB;
VODAFONE IP LICENSING LIMITED, Berkshire, GB;
Abstract
To reduce the number of subcarriers used for the transmission of reference symbols by base stations in an OFDM based cellular telecommunications network, the level of data for transmission from the base station to at least one subscriber station is determined and, when traffic levels are low and/or where the mobile station is unable to make efficient use of the full bandwidth, reference symbol data is transmitted from the base station using a number of the subcarriers less than the total number of subcarriers available. Thus the reference symbol frequency spread—the bandwidth between the lowest frequency subcarrier and the highest frequency subcarrier being used to transmit reference symbols—is made dependent upon the determined level of data for transmission.