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:
May. 16, 2017
Filed:
Jan. 29, 2015
Telefonaktiebolaget L M Ericsson (Publ), Stockholm, SE;
Markus Gerdin, Nödinge, SE;
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm, SE;
Abstract
This disclosure provides a microwave radio transmitter apparatus comprising an antenna arrangement and a precoder module connected to the antenna arrangement. The precoder module comprises an estimation module. The precoder module is configured to receive a number N of signals s, . . . , sand to generate N phase-adjusted transmit signals TX, . . . , TX. The antenna arrangement comprises N antenna elements a, i=1, 2, . . . , N. Each antenna element ais configured to obtain a respective phase-adjusted transmit signal TXfrom the pre-coder and to transmit the respective phase-adjusted transmit signal TX. The precoder module is configured to obtain an observation receive signal RX, the observation receive signal comprising signals transmitted from the N antenna elements. The estimation module is configured to estimate for each antenna element aa phase difference between the corresponding transmit signal TXand the observation receive signal RX. The precoder module is configured to adjust each transmit signal based on the estimated phase difference.