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. 16, 2015
Filed:
Apr. 26, 2013
International Business Machines Corporation, Armonk, NY (US);
Kang-Won Lee, Nanuet, NY (US);
Ramya Raghavendra, White Plains, NY (US);
Yang Song, San Jose, CA (US);
Ho Yin Starsky Wong, Ossining, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A mechanism is provided for transmitting a multicast session to a plurality of receivers over a wireless network. A forward error correction (FEC) overhead and a transmission rate are determined for transmission of a next data block of the multicast session based on received channel conditions. The next data block is multicast using the determined FEC overhead and transmission rate. Responsive to an indication of common missing packets from the next data block from more than one receiver in the plurality of receivers, the common missing packets are multicast to the plurality of receivers using the determined FEC overhead and transmission rate. Responsive to an indication of uncommon missing packets from the data block from one or more receivers, for each receiver in the one or more receivers, the uncommon missing packets identified by the receiver are unicast using the determined FEC overhead and transmission rate.