Multiplex communications – Communication techniques for information carried in plural... – Transmission bandwidth conservation
Reexamination Certificate
2004-04-27
2010-10-26
Cho, Hong (Department: 2467)
Multiplex communications
Communication techniques for information carried in plural...
Transmission bandwidth conservation
C370S521000
Reexamination Certificate
active
07822067
ABSTRACT:
Methods and apparatus for compression of headers in broadcasting BCMCS services in a wireless communication system are described. Techniques used in BCMCS systems without feedback include sending static context information during BCMCS service initialization for use in a decompressor in a mobile station. Techniques used in BCMCS systems with feedback include receiving feedback from distributed mobile station decompressors and adjusting the broadcasting compressor in response to the feedback. Techniques that reduce the number of operating states in both the compressor and the decompressor are described. Techniques to classify flows so that a reduced number of contexts are used to compress/decompress session packet headers in a push-to-talk service are described.
REFERENCES:
patent: 6058106 (2000-05-01), Cudak et al.
patent: 6909702 (2005-06-01), Leung et al.
patent: 7046672 (2006-05-01), Liao et al.
patent: 2002/0102999 (2002-08-01), Maggenti et al.
patent: 2002/0141365 (2002-10-01), Leung
patent: 2002/0141447 (2002-10-01), Leung et al.
patent: 2002/0142730 (2002-10-01), Hsu
patent: 2002/0142757 (2002-10-01), Leung et al.
patent: 2002/0146000 (2002-10-01), Jonsson et al.
patent: 2002/0150091 (2002-10-01), Lopponen et al.
patent: 2003/0012149 (2003-01-01), Maggenti et al.
patent: 2003/0054807 (2003-03-01), Hsu et al.
patent: 2003/0063591 (2003-04-01), Leung et al.
patent: 1283617 (2003-02-01), None
patent: 03019840 (2003-03-01), None
Borman C et al.: “Request for Comments 3095, Robust header compression (ROHC), framework and four profiles: RTP, UDP, ESP and uncompressed” Network Working Group Request for Comments, pp. 1-168, XP002220600.
International Search Report, PCT/US04/025568, International Search Authority, European Patent Office, Mar. 2, 2005.
Written Opinion, PCT/US04/025568, International Search Authority, European Patent Office, Mar. 2, 2005.
Hsu Raymond Tah-Sheng
Jin Haipeng
Veerepalli Sivaramakrishna
Wang Jun
Cho Hong
Choi Eunsook
Ketchum John J.
Qualcomm Incorporated
LandOfFree
Header compression enhancement for broadcast/multicast services does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Header compression enhancement for broadcast/multicast services, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Header compression enhancement for broadcast/multicast services will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4159377