GB2313981B - Assymetric communications channel for a portable computer - Google Patents

Assymetric communications channel for a portable computer

Info

Publication number
GB2313981B
GB2313981B GB9705123A GB9705123A GB2313981B GB 2313981 B GB2313981 B GB 2313981B GB 9705123 A GB9705123 A GB 9705123A GB 9705123 A GB9705123 A GB 9705123A GB 2313981 B GB2313981 B GB 2313981B
Authority
GB
United Kingdom
Prior art keywords
communications channel
portable computer
channel
internet
communicator
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
GB9705123A
Other versions
GB2313981A (en
GB9705123D0 (en
Inventor
John Steven Cundall
Walter Harold Willia Tuttlebee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Roke Manor Research Ltd
Original Assignee
Roke Manor Research Ltd
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
Priority claimed from GBGB9611830.2A external-priority patent/GB9611830D0/en
Application filed by Roke Manor Research Ltd filed Critical Roke Manor Research Ltd
Priority to GB9705123A priority Critical patent/GB2313981B/en
Publication of GB9705123D0 publication Critical patent/GB9705123D0/en
Publication of GB2313981A publication Critical patent/GB2313981A/en
Application granted granted Critical
Publication of GB2313981B publication Critical patent/GB2313981B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/38—Arrangements for distribution where lower stations, e.g. receivers, interact with the broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
    • H04H20/57—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for mobile receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/71—Wireless systems
    • H04H20/72—Wireless systems of terrestrial networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/76—Wired systems
    • H04H20/77—Wired systems using carrier waves
    • H04H20/80—Wired systems using carrier waves having frequencies in two or more frequency bands, e.g. medium wave and VHF
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5691—Access to open networks; Ingress point selection, e.g. ISP selection
    • H04L12/5692—Selection among different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/64—Hybrid switching systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
    • H04L69/169—Special adaptations of TCP, UDP or IP for interworking of IP based networks with other networks 
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H2201/00—Aspects of broadcast communication
    • H04H2201/10—Aspects of broadcast communication characterised by the type of broadcast system
    • H04H2201/20—Aspects of broadcast communication characterised by the type of broadcast system digital audio broadcasting [DAB]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/06—Transport layer protocols, e.g. TCP [Transport Control Protocol] over wireless

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A wireless communications link for a portable computer 1 , comprises a first communicator 3, operating in accordance with a relatively low bandwidth GSM based mobile radio telephone system such as DCS 1800 or PCS 1900, to provide a first digital communications channel 3a, a second communicator 2, operating in accordance with the higher bandwidth Digital Audio Broadcast (DAB) system, based on the Eureka-147 standard, to provide a second digital communications channel 2a, and a data processor unit 15, arranged to operate in combination with the first and the second communicators, which transmits the portable computer's data requests to the internet via the first communications channel 3a and receives internet data via the second communications channel 2a, thereby providing the portable computer with a low bit rate channel for communicating its limited instructions to an internet supplier and a high bit rate channel for downloading large data files from the supplier.
GB9705123A 1996-06-06 1997-03-12 Assymetric communications channel for a portable computer Expired - Fee Related GB2313981B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9705123A GB2313981B (en) 1996-06-06 1997-03-12 Assymetric communications channel for a portable computer

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB9611830.2A GB9611830D0 (en) 1996-06-06 1996-06-06 Improvements in or relating to portable computers
GBGB9613404.4A GB9613404D0 (en) 1996-06-06 1996-06-26 Improvements in or relating to portable computers
GB9705123A GB2313981B (en) 1996-06-06 1997-03-12 Assymetric communications channel for a portable computer

Publications (3)

Publication Number Publication Date
GB9705123D0 GB9705123D0 (en) 1997-04-30
GB2313981A GB2313981A (en) 1997-12-10
GB2313981B true GB2313981B (en) 2001-04-18

Family

ID=27268308

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9705123A Expired - Fee Related GB2313981B (en) 1996-06-06 1997-03-12 Assymetric communications channel for a portable computer

Country Status (1)

Country Link
GB (1) GB2313981B (en)

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JP2000232670A (en) * 1999-02-09 2000-08-22 Sony Corp Communication device, communication system and its method
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US7301952B2 (en) 2000-04-06 2007-11-27 The Distribution Systems Research Institute Terminal-to-terminal communication connection control method using IP transfer network
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GB2364479A (en) * 2000-06-30 2002-01-23 Nokia Oy Ab System for locating a terminal
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SG101985A1 (en) 2000-07-12 2004-02-27 Distribution Systems Res Inst Integrated information communication system
DE10044161B4 (en) * 2000-09-06 2006-12-07 T-Mobile Deutschland Gmbh Method and system for communicating with the Internet
DE10056087B4 (en) * 2000-11-07 2005-03-17 IQ wireless GmbH, Entwicklungsgesellschaft für Systeme und Technologien der Telekommunikation Radio communication system
DE10056086C2 (en) * 2000-11-07 2002-12-05 Iq Wireless Gmbh Procedure for synchronization in a radio communication system
DE10056088B4 (en) * 2000-11-07 2006-01-12 IQ wireless GmbH, Entwicklungsgesellschaft für Systeme und Technologien der Telekommunikation Method and apparatus for compensating interference by multipath propagation in a radio communication system
US7257386B1 (en) 2000-11-20 2007-08-14 Hewlett-Packard Development Company, L.P. Data transfer system and method of data transfer
GB0028732D0 (en) 2000-11-24 2001-01-10 Nokia Oy Ab Improvements in and relating to a broadcast network
AU2002232369A1 (en) * 2001-02-16 2002-09-04 Plexus Multimedia Pte Ltd System for delivering on demand data to a wireless mobile receiver
ITTO20010154A1 (en) * 2001-02-21 2002-08-21 Rai Radiotelevisione Italiana AUDIO AND VIDEO SIGNALS TRANSMISSION SYSTEM TO UMTS MOBILE TELEPHONE TERMINALS AND MOBILE TERMINAL FOR USE WITH THE SYSTEM.
EP2234407A1 (en) 2001-06-08 2010-09-29 The Distribution Systems Research Institute Terminal-to-terminal communication connection control system for IP full service
FI20011342A0 (en) * 2001-06-25 2001-06-25 Nokia Corp Method and device for obtaining information
FI20012256A0 (en) * 2001-11-20 2001-11-20 Nokia Corp Mobile networks and digital broadcasting services
US7020273B2 (en) 2001-11-27 2006-03-28 Nokia Corporation Communication terminal provided for a user selected distortion of an acoustic input
US7765318B2 (en) 2002-01-18 2010-07-27 Magna Light Corporation Wireless distribution & collection system
US7492787B2 (en) 2002-03-29 2009-02-17 Fujitsu Limited Method, apparatus, and medium for migration across link technologies
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US8396508B2 (en) 2004-12-13 2013-03-12 Broadcom Corporation Method and system for a mobile receiver architecture for European band cellular and broadcasting
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WO1995034153A1 (en) * 1994-06-08 1995-12-14 Hughes Aircraft Company Apparatus and method for hybrid network access
EP0700225A2 (en) * 1994-08-31 1996-03-06 AT&T Corp. Wireless channel setup using low bandwidth network for selecting high bandwidth data bearer channel of another network system for data transmission
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US5537399A (en) * 1993-12-22 1996-07-16 U.S. Philips Corporation Local network
WO1995034153A1 (en) * 1994-06-08 1995-12-14 Hughes Aircraft Company Apparatus and method for hybrid network access
EP0700225A2 (en) * 1994-08-31 1996-03-06 AT&T Corp. Wireless channel setup using low bandwidth network for selecting high bandwidth data bearer channel of another network system for data transmission

Also Published As

Publication number Publication date
GB2313981A (en) 1997-12-10
GB9705123D0 (en) 1997-04-30

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20090312