CA2216365A1 - Orthogonalizing methods for antenna pattern nullfilling - Google Patents

Orthogonalizing methods for antenna pattern nullfilling

Info

Publication number
CA2216365A1
CA2216365A1 CA002216365A CA2216365A CA2216365A1 CA 2216365 A1 CA2216365 A1 CA 2216365A1 CA 002216365 A CA002216365 A CA 002216365A CA 2216365 A CA2216365 A CA 2216365A CA 2216365 A1 CA2216365 A1 CA 2216365A1
Authority
CA
Canada
Prior art keywords
orthogonal signals
nullfilling
orthogonalizing
methods
antenna pattern
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.)
Granted
Application number
CA002216365A
Other languages
French (fr)
Other versions
CA2216365C (en
Inventor
Ulf Goran Forssen
Stig Roland Bodin
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Individual
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 US08/412,921 external-priority patent/US5649287A/en
Application filed by Individual filed Critical Individual
Publication of CA2216365A1 publication Critical patent/CA2216365A1/en
Application granted granted Critical
Publication of CA2216365C publication Critical patent/CA2216365C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Radio Transmission System (AREA)

Abstract

A method for broadcasting information in a cellular communication system comprising at least one base station with an antenna array and a plurality of mobile stations is disclosed. The common information is preprocessed to create orthogonal signals. The orthogonal signals are then beam formed so that the orthogonal signals are delivered to the different elements in the array antenna. The orthogonal signals are transmitted and then received at at least one mobile station. The signals are then processed at the mobile station to decipher the common information from the orthogonal signals.
CA002216365A 1995-03-29 1996-03-26 Orthogonalizing methods for antenna pattern nullfilling Expired - Lifetime CA2216365C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/412,921 US5649287A (en) 1995-03-29 1995-03-29 Orthogonalizing methods for antenna pattern nullfilling
US08/412,921 1995-03-29
PCT/SE1996/000386 WO1996030964A1 (en) 1995-03-29 1996-03-26 Wide antenna lobe

Publications (2)

Publication Number Publication Date
CA2216365A1 true CA2216365A1 (en) 1996-10-03
CA2216365C CA2216365C (en) 2006-09-12

Family

ID=36999295

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002216365A Expired - Lifetime CA2216365C (en) 1995-03-29 1996-03-26 Orthogonalizing methods for antenna pattern nullfilling

Country Status (1)

Country Link
CA (1) CA2216365C (en)

Also Published As

Publication number Publication date
CA2216365C (en) 2006-09-12

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Legal Events

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MKEX Expiry

Effective date: 20160329