GB2346765B - Communications receiver and method of detecting data from received signals - Google Patents

Communications receiver and method of detecting data from received signals

Info

Publication number
GB2346765B
GB2346765B GB9903054A GB9903054A GB2346765B GB 2346765 B GB2346765 B GB 2346765B GB 9903054 A GB9903054 A GB 9903054A GB 9903054 A GB9903054 A GB 9903054A GB 2346765 B GB2346765 B GB 2346765B
Authority
GB
United Kingdom
Prior art keywords
received signals
detecting data
communications receiver
communications
receiver
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
GB9903054A
Other versions
GB9903054D0 (en
GB2346765A (en
Inventor
Leo Rademacher
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to GB9903054A priority Critical patent/GB2346765B/en
Publication of GB9903054D0 publication Critical patent/GB9903054D0/en
Priority to CN 00104879 priority patent/CN1277504A/en
Priority to JP2000035968A priority patent/JP2000324032A/en
Publication of GB2346765A publication Critical patent/GB2346765A/en
Application granted granted Critical
Publication of GB2346765B publication Critical patent/GB2346765B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H04B1/7097—Interference-related aspects
    • H04B1/7103—Interference-related aspects the interference being multiple access interference
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
    • 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
    • H01Q3/2605—Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays
    • 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
    • H01Q3/2682—Time delay steered arrays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/0845—Weighted combining per branch equalization, e.g. by an FIR-filter or RAKE receiver per antenna branch
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/0848—Joint weighting
    • H04B7/0851—Joint weighting using training sequences or error signal
    • 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
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
    • 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
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Radio Transmission System (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
GB9903054A 1999-02-12 1999-02-12 Communications receiver and method of detecting data from received signals Expired - Fee Related GB2346765B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB9903054A GB2346765B (en) 1999-02-12 1999-02-12 Communications receiver and method of detecting data from received signals
CN 00104879 CN1277504A (en) 1999-02-12 2000-02-12 Communication receiver for detecting data from receipt signal and its method
JP2000035968A JP2000324032A (en) 1999-02-12 2000-02-14 Radio communication receiver and method for reproducing data from radio signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9903054A GB2346765B (en) 1999-02-12 1999-02-12 Communications receiver and method of detecting data from received signals

Publications (3)

Publication Number Publication Date
GB9903054D0 GB9903054D0 (en) 1999-03-31
GB2346765A GB2346765A (en) 2000-08-16
GB2346765B true GB2346765B (en) 2003-04-09

Family

ID=10847520

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9903054A Expired - Fee Related GB2346765B (en) 1999-02-12 1999-02-12 Communications receiver and method of detecting data from received signals

Country Status (3)

Country Link
JP (1) JP2000324032A (en)
CN (1) CN1277504A (en)
GB (1) GB2346765B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7082174B1 (en) 2000-07-24 2006-07-25 Qualcomm, Incorporated Method and apparatus for processing a modulated signal using an equalizer and a rake receiver
US6833810B2 (en) 2002-01-18 2004-12-21 Raytheon Company Combining signals exhibiting multiple types of diversity

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4752969A (en) * 1986-01-16 1988-06-21 Kenneth Rilling Anti-multipath signal processor
EP0650268A1 (en) * 1993-10-20 1995-04-26 AT&T Corp. System for radio transmission using a wideband adaptive array and frequency-domain processing
EP0667686A2 (en) * 1993-12-16 1995-08-16 Nec Corporation DS/CDMA diveristy receiver with despreading filters

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4752969A (en) * 1986-01-16 1988-06-21 Kenneth Rilling Anti-multipath signal processor
EP0650268A1 (en) * 1993-10-20 1995-04-26 AT&T Corp. System for radio transmission using a wideband adaptive array and frequency-domain processing
EP0667686A2 (en) * 1993-12-16 1995-08-16 Nec Corporation DS/CDMA diveristy receiver with despreading filters

Also Published As

Publication number Publication date
JP2000324032A (en) 2000-11-24
GB9903054D0 (en) 1999-03-31
GB2346765A (en) 2000-08-16
CN1277504A (en) 2000-12-20

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20090205 AND 20090211

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20090212