WO2003001724A3 - Proxy server and method for delivering information in a multimedia communication system - Google Patents

Proxy server and method for delivering information in a multimedia communication system Download PDF

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Publication number
WO2003001724A3
WO2003001724A3 PCT/EP2002/007004 EP0207004W WO03001724A3 WO 2003001724 A3 WO2003001724 A3 WO 2003001724A3 EP 0207004 W EP0207004 W EP 0207004W WO 03001724 A3 WO03001724 A3 WO 03001724A3
Authority
WO
WIPO (PCT)
Prior art keywords
real
information stream
time data
multiplexed
proxy server
Prior art date
Application number
PCT/EP2002/007004
Other languages
French (fr)
Other versions
WO2003001724A2 (en
Inventor
John Hughes
Stephen Mark Brunt
Timor Kadir
Original Assignee
Motorola Inc
John Hughes
Stephen Mark Brunt
Timor Kadir
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Motorola Inc, John Hughes, Stephen Mark Brunt, Timor Kadir filed Critical Motorola Inc
Priority to AU2002325844A priority Critical patent/AU2002325844A1/en
Publication of WO2003001724A2 publication Critical patent/WO2003001724A2/en
Publication of WO2003001724A3 publication Critical patent/WO2003001724A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1809—Selective-repeat protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L2001/0092—Error control systems characterised by the topology of the transmission link

Abstract

A proxy server (136) for a multimedia communication system (100), includes a receiver (240) receiving a multiplexed information stream transmitted from a source communication unit (402, 406) to a destination communication unit (406, 402); and a processor for de-multiplexing the received multiplexed information stream and extracting non-real-time data from the multiplexed information stream. The proxy server (136) further includes error detection means, operbly coupled to a transmitter and a memory element, for determining whether an error exists in the extracted non-real-time data. if an error is detected, then a non-real-time data re-transmission request is transmitted to the source communication unit. If an error is not detected then a copy of the extracted non-real-time data is stored in said memory element. A method (400, 500) for delivering a muliplexed information stream, a communication system and a storage medium are also provided. The multiplexed packed is forwarded immediately to the receiving node as well as being processed to see if there are any errors in the non-real time streams. This ensures non-real-time multiplexed multimedia streams are communicated with minimum delay in an end-to end communication link.
PCT/EP2002/007004 2001-06-22 2002-06-21 Proxy server and method for delivering information in a multimedia communication system WO2003001724A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002325844A AU2002325844A1 (en) 2001-06-22 2002-06-21 Proxy server and method for delivering information in a multimedia communication system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0115309A GB2376857B (en) 2001-06-22 2001-06-22 Proxy server and method for delivering information in a multimedia communication system
GB0115309.7 2001-06-22

Publications (2)

Publication Number Publication Date
WO2003001724A2 WO2003001724A2 (en) 2003-01-03
WO2003001724A3 true WO2003001724A3 (en) 2003-08-28

Family

ID=9917167

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/007004 WO2003001724A2 (en) 2001-06-22 2002-06-21 Proxy server and method for delivering information in a multimedia communication system

Country Status (3)

Country Link
AU (1) AU2002325844A1 (en)
GB (1) GB2376857B (en)
WO (1) WO2003001724A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100498932B1 (en) * 2002-12-30 2005-07-04 삼성전자주식회사 Apparatus and method for session establishment in radio network organized mobile nodes

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5699367A (en) * 1995-12-29 1997-12-16 Telefonaktiebolaget Lm Ericsson Concatenated error detection coding and packet numbering for hierarchical ARQ schemes
WO2000013455A1 (en) * 1998-08-27 2000-03-09 Intel Corporation Method and apparatus for input/output link retry, failure and recovery in a computer network
EP1006689A2 (en) * 1998-11-30 2000-06-07 Matsushita Electric Industries Co., Ltd. Packet retransmission control using priority information
EP1096719A2 (en) * 1999-11-01 2001-05-02 Matsushita Electric Industrial Co., Ltd. Relay data retransmission method and system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5396613A (en) * 1992-11-05 1995-03-07 University Of Utah Research Foundation Method and system for error recovery for cascaded servers
JPH07336366A (en) * 1994-06-09 1995-12-22 Canon Inc Radio lan system
JPH1188462A (en) * 1997-09-08 1999-03-30 Toshiba Corp Radio communication system
FR2797543B1 (en) * 1999-08-12 2004-04-09 Cit Alcatel METHOD FOR COMMUNICATING A USER WITH AT LEAST ONE DATABASE
CN1119885C (en) * 2000-03-03 2003-08-27 清华大学 Information element transmission method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5699367A (en) * 1995-12-29 1997-12-16 Telefonaktiebolaget Lm Ericsson Concatenated error detection coding and packet numbering for hierarchical ARQ schemes
WO2000013455A1 (en) * 1998-08-27 2000-03-09 Intel Corporation Method and apparatus for input/output link retry, failure and recovery in a computer network
EP1006689A2 (en) * 1998-11-30 2000-06-07 Matsushita Electric Industries Co., Ltd. Packet retransmission control using priority information
EP1096719A2 (en) * 1999-11-01 2001-05-02 Matsushita Electric Industrial Co., Ltd. Relay data retransmission method and system

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
NAMIHIRA D ET AL: "A media proxy architecture for an NFS-based VOD service on the intranet", COMMUNICATIONS, COMPUTERS AND SIGNAL PROCESSING, 1997. 10 YEARS PACRIM 1987-1997 - NETWORKING THE PACIFIC RIM. 1997 IEEE PACIFIC RIM CONFERENCE ON VICTORIA, BC, CANADA 20-22 AUG. 1997, NEW YORK, NY, USA,IEEE, US, 20 August 1997 (1997-08-20), pages 97 - 100, XP010244925, ISBN: 0-7803-3905-3 *
VASS J ET AL: "Efficient mobile video access in wireless environments", WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE, 1999. WCNC. 1999 IEEE NEW ORLEANS, LA, USA 21-24 SEPT. 1999, PISCATAWAY, NJ, USA,IEEE, US, 21 September 1999 (1999-09-21), pages 354 - 358, XP010353827, ISBN: 0-7803-5668-3 *

Also Published As

Publication number Publication date
WO2003001724A2 (en) 2003-01-03
AU2002325844A1 (en) 2003-01-08
GB0115309D0 (en) 2001-08-15
GB2376857A (en) 2002-12-24
GB2376857B (en) 2003-07-23

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