WO2003009518A3 - System and method for multipoint to multipoint data communication - Google Patents

System and method for multipoint to multipoint data communication Download PDF

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Publication number
WO2003009518A3
WO2003009518A3 PCT/US2002/023211 US0223211W WO03009518A3 WO 2003009518 A3 WO2003009518 A3 WO 2003009518A3 US 0223211 W US0223211 W US 0223211W WO 03009518 A3 WO03009518 A3 WO 03009518A3
Authority
WO
WIPO (PCT)
Prior art keywords
nodes
multipoint
slot
assigned
channel
Prior art date
Application number
PCT/US2002/023211
Other languages
French (fr)
Other versions
WO2003009518A2 (en
Inventor
Kenneth Margon
Original Assignee
Cape Range Wireless Inc
Kenneth Margon
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 Cape Range Wireless Inc, Kenneth Margon filed Critical Cape Range Wireless Inc
Priority to EA200400206A priority Critical patent/EA005625B1/en
Priority to NZ530993A priority patent/NZ530993A/en
Publication of WO2003009518A2 publication Critical patent/WO2003009518A2/en
Publication of WO2003009518A3 publication Critical patent/WO2003009518A3/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/407—Bus networks with decentralised control
    • H04L12/417—Bus networks with decentralised control with deterministic access, e.g. token passing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/40006—Architecture of a communication node
    • H04L12/40032—Details regarding a bus interface enhancer

Abstract

A system and method is providing for multipoint to multipoint data communication wherein the system comprises a communications medium interconnecting at least one central server and a plurality of communication nodes. The central server (120, fig.1) transmits information to the nodes (130) via a Forward Channel and the nodes transmit information via a Reverse Channel. Before transmitting, each of the nodes listens (monitors) during an assigned slot of a Clear Channel Assessment interval (CCA slot) of the communications cycle to ascertain whether any other node is transmitting (540). A given node transmits data only when that node determines that the network is clear (560). The nodes listen in sequential order, eliminating the probability of collisions caused by simultaneous transmissions from nodes. A query channel interval is provided for nodes not assigned a slot within clear channel assessment interval to request a slot. Assigned slots not used by nodes are allocated to other nodes. The data traffic is accordingly aggregated, thus providing efficient utilization.
PCT/US2002/023211 2001-07-19 2002-07-19 System and method for multipoint to multipoint data communication WO2003009518A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EA200400206A EA005625B1 (en) 2001-07-19 2002-07-19 System and method for multipoint to multipoint data communication
NZ530993A NZ530993A (en) 2001-07-19 2002-07-19 System and method for multipoint to multipoint data communication

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US30615901P 2001-07-19 2001-07-19
US60/306,159 2001-07-19

Publications (2)

Publication Number Publication Date
WO2003009518A2 WO2003009518A2 (en) 2003-01-30
WO2003009518A3 true WO2003009518A3 (en) 2003-07-17

Family

ID=23184088

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/023211 WO2003009518A2 (en) 2001-07-19 2002-07-19 System and method for multipoint to multipoint data communication

Country Status (4)

Country Link
CN (1) CN1555634A (en)
EA (1) EA005625B1 (en)
NZ (1) NZ530993A (en)
WO (1) WO2003009518A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101309262B (en) * 2008-01-15 2012-05-30 深圳市海科汇软件系统开发有限公司 Network platform and method for implementing multi-station cooperative service
CN103177274B (en) * 2013-03-04 2015-12-02 珠海同方爱德科技有限公司 The collision-proof method of timeslot-based multiple radio-frequency identification reader/writer
WO2016048798A1 (en) * 2014-09-25 2016-03-31 Nokia Technologies Oy Listen before talk arrangement for a multi-operator scenario

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4628311A (en) * 1983-10-19 1986-12-09 International Business Machines Corporation Carrier sense multiple access with collision avoidance utilizing rotating time staggered access windows
US5231634A (en) * 1991-12-18 1993-07-27 Proxim, Inc. Medium access protocol for wireless lans
US5276703A (en) * 1992-01-13 1994-01-04 Windata, Inc. Wireless local area network communications system
US5526355A (en) * 1993-06-30 1996-06-11 Digital Equipment Corporation Method and apparatus for use in a network of the ethernet type, to improve performance by reducing the occurrence of collisions in the event of channel capture
US5774658A (en) * 1996-09-17 1998-06-30 Advanced Micro Devices, Inc. Arrangement for accessing media in a network having universal multiple access nodes and carrier sense nodes
US6026095A (en) * 1994-09-27 2000-02-15 3Com Corporation Method and apparatus for controlling latency and jitter in shared CSMA/CD (repeater) environment

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4628311A (en) * 1983-10-19 1986-12-09 International Business Machines Corporation Carrier sense multiple access with collision avoidance utilizing rotating time staggered access windows
US5231634A (en) * 1991-12-18 1993-07-27 Proxim, Inc. Medium access protocol for wireless lans
US5231634B1 (en) * 1991-12-18 1996-04-02 Proxim Inc Medium access protocol for wireless lans
US5276703A (en) * 1992-01-13 1994-01-04 Windata, Inc. Wireless local area network communications system
US5526355A (en) * 1993-06-30 1996-06-11 Digital Equipment Corporation Method and apparatus for use in a network of the ethernet type, to improve performance by reducing the occurrence of collisions in the event of channel capture
US6026095A (en) * 1994-09-27 2000-02-15 3Com Corporation Method and apparatus for controlling latency and jitter in shared CSMA/CD (repeater) environment
US5774658A (en) * 1996-09-17 1998-06-30 Advanced Micro Devices, Inc. Arrangement for accessing media in a network having universal multiple access nodes and carrier sense nodes

Also Published As

Publication number Publication date
WO2003009518A2 (en) 2003-01-30
NZ530993A (en) 2006-07-28
EA200400206A1 (en) 2004-08-26
CN1555634A (en) 2004-12-15
EA005625B1 (en) 2005-04-28

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