Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2003-07-22
2008-11-11
Rao, Seema S. (Department: 2616)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S473000, C370S474000, C370S477000, C709S238000
Reexamination Certificate
active
07450586
ABSTRACT:
For steady state voice data packet transmission between a mobile station and a packet data service node a new compressed TCP/IP header (160) concatenated with a compressed RTP/UDP header (4) is sent. This concatenated header is seven bytes in length instead of the typical 40 byte long RTP/UDP/IP header. A new TCP header arrangement (30) transmits a special access code (161) to a Van Jacobson TCP/IP header compression/decompression arrangement (20). This allows the voice data packet to be transmitted to the receiving end without the other 33 bytes of header information. The PDSN regenerates the IP header and the receiving end then regenerates the RTP/UDP header (205) while it discards the new TCP header arrangement (30).
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Davila Hector Ricardo
Griffin Craig Thomas
Motorola Inc.
Rao Seema S.
Wong Xavier Szewai
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