[go: up one dir, main page]

GB2313985B - Improvements in or relating to spread spectrum communications systems - Google Patents

Improvements in or relating to spread spectrum communications systems

Info

Publication number
GB2313985B
GB2313985B GB9611650A GB9611650A GB2313985B GB 2313985 B GB2313985 B GB 2313985B GB 9611650 A GB9611650 A GB 9611650A GB 9611650 A GB9611650 A GB 9611650A GB 2313985 B GB2313985 B GB 2313985B
Authority
GB
United Kingdom
Prior art keywords
relating
spread spectrum
communications systems
spectrum communications
systems
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
GB9611650A
Other versions
GB2313985A (en
GB9611650D0 (en
Inventor
Anthony Peter Hulbert
Julian Richard Trinder
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
Application filed by Roke Manor Research Ltd filed Critical Roke Manor Research Ltd
Priority to GB9611650A priority Critical patent/GB2313985B/en
Publication of GB9611650D0 publication Critical patent/GB9611650D0/en
Publication of GB2313985A publication Critical patent/GB2313985A/en
Application granted granted Critical
Publication of GB2313985B publication Critical patent/GB2313985B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2628—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]
    • H04B7/2637—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA] for logical channel control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/004—Orthogonal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
GB9611650A 1996-06-04 1996-06-04 Improvements in or relating to spread spectrum communications systems Expired - Fee Related GB2313985B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9611650A GB2313985B (en) 1996-06-04 1996-06-04 Improvements in or relating to spread spectrum communications systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9611650A GB2313985B (en) 1996-06-04 1996-06-04 Improvements in or relating to spread spectrum communications systems

Publications (3)

Publication Number Publication Date
GB9611650D0 GB9611650D0 (en) 1996-08-07
GB2313985A GB2313985A (en) 1997-12-10
GB2313985B true GB2313985B (en) 2000-08-09

Family

ID=10794736

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9611650A Expired - Fee Related GB2313985B (en) 1996-06-04 1996-06-04 Improvements in or relating to spread spectrum communications systems

Country Status (1)

Country Link
GB (1) GB2313985B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3642483B2 (en) * 2002-01-09 2005-04-27 日本電気株式会社 Wireless mobile station and wireless communication system including the same
US7756000B2 (en) 2007-05-17 2010-07-13 Harris Corporation Spread baseband injected pilot carrier

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0420230A2 (en) * 1989-09-29 1991-04-03 Hughes Aircraft Company Feed forward spread spectrum signal processor
EP0661830A2 (en) * 1993-12-30 1995-07-05 Nec Corporation Synchronization acquisition and tracking for a direct sequence spread spectrum receiver

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0420230A2 (en) * 1989-09-29 1991-04-03 Hughes Aircraft Company Feed forward spread spectrum signal processor
EP0661830A2 (en) * 1993-12-30 1995-07-05 Nec Corporation Synchronization acquisition and tracking for a direct sequence spread spectrum receiver

Also Published As

Publication number Publication date
GB2313985A (en) 1997-12-10
GB9611650D0 (en) 1996-08-07

Similar Documents

Publication Publication Date Title
SG43984A1 (en) Multi-use spread spectrum communication system
GB2315392B (en) Communications system
AU7649396A (en) Spread spectrum communication system
IL119832A0 (en) Communications system
GB9624981D0 (en) Improvements relating to security systems
EP0956018A4 (en) Imidazole compounds, compositions and use
GB9723487D0 (en) Communication systems
IL123807A0 (en) Transmitted reference spread spectrum communications system
GB2313749B (en) Secure communications
GB9608485D0 (en) Compositions, processes and uses
GB2314730B (en) Improvements in or relating to packet radio systems
GB2313751B (en) Spread-spectrum communication
GB9619442D0 (en) Communications system
GB2313985B (en) Improvements in or relating to spread spectrum communications systems
GB2357408B (en) Communications system
GB9808134D0 (en) Joint-detection in spread spectrum communication systems
GB2320400B (en) Communications system
GB2314994B (en) Communication systems
GB9817119D0 (en) Improvements in or relating to secure communication systems
GB2357677B (en) Spread spectrum communication system
GB9614973D0 (en) Improvements in or relating to packet radio systems
GB9313226D0 (en) Spread spectrum communication system
GB9311006D0 (en) Spread spectrum communication system
GB2337900B (en) Communications system
GB9507223D0 (en) Improvements in or relating to radio communication systems

Legal Events

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

Effective date: 20020604