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:
Nov. 22, 2016
Filed:
May. 11, 2015
Collision Communications, Inc., Portsmouth, NH (US);
Sagar Dhakal, Bedford, NH (US);
Joseph Farkas, Merrimack, NH (US);
Brandon Hombs, Merrimack, NH (US);
Seyedmehdi S. Nokhodberiz, Nashua, NH (US);
Collision Communications, Inc., Peterborough, NH (US);
Abstract
Methods and systems are described for calibrating phase hardware-induced distortion in a long term evolution (LTE) communications system. In one aspect, an estimate of a phase difference at a user equipment (UE) between downlink channels including signals sent over two or more BS transmitter chains is received from the UE in an LTE communications system. A phase difference between uplink channels including signals received over two or more BS receiver chains is determined at a BS. A relative phase distortion induced by two or more BS transceiver chains is determined based on the received estimate of phase difference between downlink channels and the determined phase difference between uplink channels.