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:
Jun. 05, 2012
Filed:
Oct. 28, 2009
Bruce Collins, San Diego, CA (US);
Rajeev Krishnamurthi, San Diego, CA (US);
Murali Ramaswamy Chair, San Diego, CA (US);
Shusheel Gautam, San Diego, CA (US);
Rajiv Vijayan, San Diego, CA (US);
Seong Taek Chung, Redwood City, CA (US);
Bruce Collins, San Diego, CA (US);
Rajeev Krishnamurthi, San Diego, CA (US);
Murali Ramaswamy Chair, San Diego, CA (US);
Shusheel Gautam, San Diego, CA (US);
Rajiv Vijayan, San Diego, CA (US);
Seong Taek Chung, Redwood City, CA (US);
Qualcomm Incorporated, San Diego, CA (US);
Abstract
A media access control (MAC) layer controller can manage base layer data and enhancement layer data in a layered modulation system. The MAC layer controller can process both base layer data and enhancement layer data and map the encoded symbols to a layered modulation constellation when both are present. If data for one of the layers terminates, then the MAC layer controller can generate and supply predetermined stuffing data to the layer lacking additional data. The MAC layer controller can send a control signal to the physical layer hardware to cause the hardware to map the layered signals having the stuffing data to a modified signal constellation. The MAC controller can also generate an overhead message that indicates the occurrence of the stuffing data. The receiver can receive the overhead message and can use the information to configure the receiver for the layered modulation constellation or the modified signal constellation.