Multiplex communications – Communication techniques for information carried in plural... – Transmission bandwidth conservation
Reexamination Certificate
2007-04-24
2007-04-24
Pezzlo, John (Department: 2616)
Multiplex communications
Communication techniques for information carried in plural...
Transmission bandwidth conservation
C370S392000, C455S072000
Reexamination Certificate
active
10183413
ABSTRACT:
A packed based data transmission scheme is proposed which comprises a method of transmitting data in a packet based communication network system through a tunnel between a receiving node (40; 210) and a sending node (10;110) communicating with each other via a communication network, said method comprising the steps of: generating (S10) an original packet to be sent to said receiving node, said original packet comprising a first header as an inner header indicating and a payload, generating (S20) a tunneled packet by encapsulating said original packet with a second header as an outer header, said outer header indicating an intermediate network station for the transmission of said tunneled packet, processing (S30) said tunneled packet for the transmission by compressing said inner header and by compressing said outer header and by generating a compressed packet. Furthermore, the method may comprise steps of decompressing (S50) from said compressed packet said outer header, and generating a routing packet, removing (S70) said outer header from said routing packet, and decompressing (S80) said inner header in said routing packet whereby said original packet is reconstructed. Moreover, a corresponding system and system entities are provided.
REFERENCES:
patent: 6452915 (2002-09-01), Jorgensen
patent: 6839339 (2005-01-01), Chuah
patent: 2003/0093553 (2003-05-01), Le et al.
patent: 2005/0213546 (2005-09-01), Reitter et al.
patent: 1 122 925 (2001-08-01), None
RFC 1853: “IP In IP Tunnelling”, by W. Simpson et al, Oct. 1995, p. 1.
RFC 2002: “IP Mobility Support”, by C. Perkins, Editor IBM, Oct. 1996, pp. 1-64.
RFC: 2003: “IP Encapsulation within IP”, by C. Perkins, IBM, Oct. 1998, pp. 1-14.
RFC: 2473: “Generic Packet Tunneling in IPv6 Specification”, by A. Conta, Lucent Technologies, Inc. and S. Deering, Cisco Systems, Dec. 1998, pp. 1-36.
RFC: 3095: Robust Header Compression (ROHC): Framework and Four Profiles: RTP, UDSP, ESP and Uncompressed, by C. Bormann, Editor, TZI/Uni Bremen, etc., pp. 1-168.
DRAFT—IETF-ROHC-RTP-02, Robust Header Compression (ROHC) by Carsten Bormann (ed.(, TZI/Uni Bremen et al, Sep. 18, 200, pp. 1-104.
Faccin Stefano
Zheng Haihong
Nokia Corporation
Pezzlo John
Squire Sanders & Dempsey L.L.P.
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