Invention Grant
- Patent Title: Method and an apparatus for use of codes in multicast transmission
- Patent Title (中): 多播传输中使用代码的方法和装置
-
Application No.: US09835903Application Date: 2001-04-16
-
Publication No.: US08656246B2Publication Date: 2014-02-18
- Inventor: Nagabhushana T. Sindhushayana , Jack K. Wolf
- Applicant: Nagabhushana T. Sindhushayana , Jack K. Wolf
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Larry J. Moskowitz
- Main IPC: H03M13/00
- IPC: H03M13/00

Abstract:
A method and apparatus for multicasting of a multi-packet message are disclosed. Data to be transmitted as a message are divided into N sets, each set being encoded to generate encoded data. A set of parity bits is separated from each of the N sets of encoded data. The N sets of separated parity bits are encoded by a systematic code with a predetermined distance S across the N sets, resulting in N′ parity-bit packets. The N′ parity-bit packets are encoded with a code that is selected so that each receiving station decodes the N′ parity-bit packets with a high probability. The N-packet message, comprising the N sets of encoded data less the separated bits, and the N′ packets are multicasted. If less than S packets of the N-packet message fail to decode at a receiving station, the receiving station recovers all N packets using the N′ packets.
Public/Granted literature
- US20030007487A1 Method and an apparatus for use of codes in multicast transmission Public/Granted day:2003-01-09
Information query
IPC分类: