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:
Sep. 24, 2013
Filed:
Aug. 12, 2009
Rob Kopmeiners, Nijmegen, NL;
Jeroen Cornelis Kuenen, Beuningen, NL;
Rob Kopmeiners, Nijmegen, NL;
Jeroen Cornelis Kuenen, Beuningen, NL;
St-Ericsson SA, Plan-Les-Ouates, CH;
Abstract
A communication system includes a RF subsystem that communicates with a BB subsystem through a digital RF-BB interface multiplexing I/Q data and control signals in both TX and RX directions. The RF subsystem includes a FIFO buffer in each respective TX and RX chain and a timer that assigns a timestamp to the continuous stream in both TX and RX chains whenever it is equal to a time event from the BB subsystem. The BB subsystem includes a sample counter that counts the number (k) of data samples at the FIFO buffer and a controller that defines the time event. Precise alignment at the air interface between a data burst from the RF subsystem and a data burst from the BB subsystem can be achieved using the timer, based on the relation between the timer value (n) and the sample count (k).