FI941349A - Parannuksia solukkomatkaviestinjärjestelmiin tai niihin liittyen - Google Patents

Parannuksia solukkomatkaviestinjärjestelmiin tai niihin liittyen Download PDF

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Publication number
FI941349A
FI941349A FI941349A FI941349A FI941349A FI 941349 A FI941349 A FI 941349A FI 941349 A FI941349 A FI 941349A FI 941349 A FI941349 A FI 941349A FI 941349 A FI941349 A FI 941349A
Authority
FI
Finland
Prior art keywords
connection
mobile communication
communication systems
cellular mobile
cellular
Prior art date
Application number
FI941349A
Other languages
English (en)
Swedish (sv)
Other versions
FI941349A0 (fi
Inventor
Anthony Peter Hulbert
Original Assignee
Roke Manor Research
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 filed Critical Roke Manor Research
Publication of FI941349A publication Critical patent/FI941349A/fi
Publication of FI941349A0 publication Critical patent/FI941349A0/fi

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
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • 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]
    • H04B7/2634—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 channel frequency 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
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • H04B1/715—Interference-related aspects
    • 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
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • H04B1/7156—Arrangements for sequence synchronisation
    • 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
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • H04B1/7136—Arrangements for generation of hop frequencies, e.g. using a bank of frequency sources, using continuous tuning or using a transform
    • H04B2001/71367—Arrangements for generation of hop frequencies, e.g. using a bank of frequency sources, using continuous tuning or using a transform using a transform

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
FI941349A 1992-07-24 1994-03-23 Parannuksia solukkomatkaviestinjärjestelmiin tai niihin liittyen FI941349A0 (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9215773A GB2269075B (en) 1992-07-24 1992-07-24 Improvements in or relating to mobile cellular radio systems
PCT/GB1993/001577 WO1994002996A1 (en) 1992-07-24 1993-07-26 Improvements in or relating to mobile cellular radio systems

Publications (2)

Publication Number Publication Date
FI941349A true FI941349A (fi) 1994-03-23
FI941349A0 FI941349A0 (fi) 1994-03-23

Family

ID=10719250

Family Applications (1)

Application Number Title Priority Date Filing Date
FI941349A FI941349A0 (fi) 1992-07-24 1994-03-23 Parannuksia solukkomatkaviestinjärjestelmiin tai niihin liittyen

Country Status (5)

Country Link
US (1) US5483550A (fi)
EP (1) EP0605711A1 (fi)
FI (1) FI941349A0 (fi)
GB (1) GB2269075B (fi)
WO (1) WO1994002996A1 (fi)

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US5103459B1 (en) * 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
US6693951B1 (en) * 1990-06-25 2004-02-17 Qualcomm Incorporated System and method for generating signal waveforms in a CDMA cellular telephone system
US5812542A (en) * 1996-03-18 1998-09-22 Motorola, Inc. Method for determining weighting coefficients in a CDMA radio receiver
US6334219B1 (en) * 1994-09-26 2001-12-25 Adc Telecommunications Inc. Channel selection for a hybrid fiber coax network
GB2296407B (en) * 1994-12-22 1999-10-06 Roke Manor Research Frequency hopped cellular mobile radio systems
USRE42236E1 (en) 1995-02-06 2011-03-22 Adc Telecommunications, Inc. Multiuse subcarriers in multipoint-to-point communication using orthogonal frequency division multiplexing
US7280564B1 (en) 1995-02-06 2007-10-09 Adc Telecommunications, Inc. Synchronization techniques in multipoint-to-point communication using orthgonal frequency division multiplexing
JP3047767B2 (ja) * 1995-03-20 2000-06-05 株式会社日立製作所 無線ｌａｎシステム
US5719898A (en) * 1995-09-29 1998-02-17 Golden Bridge Technology, Inc. Fuzzy-logic spread-spectrum adaptive power control
US5907545A (en) * 1996-01-16 1999-05-25 Canon Kk Wireless communication apparatus and method
FI101760B1 (fi) * 1996-08-09 1998-08-14 Nokia Telecommunications Oy Signalointimenetelmä ja digitaalinen radiojärjestelmä
US6118810A (en) * 1997-05-08 2000-09-12 Ericsson, Inc. Multi-channel base station/terminal design covering complete system frequency range
IT1297278B1 (it) * 1997-09-15 1999-08-09 Italtel Spa Radioricevitore digitale a larga banda per segnale multiportante
US6327314B1 (en) * 1998-04-01 2001-12-04 At&T Corp. Method and apparatus for channel estimation for multicarrier systems
US5973642A (en) * 1998-04-01 1999-10-26 At&T Corp. Adaptive antenna arrays for orthogonal frequency division multiplexing systems with co-channel interference
US6246713B1 (en) 1998-06-08 2001-06-12 Telefonaktiebolaget Lm Ericsson (Publ) Frequency-hopping in a bandwidth-on-demand system
BR9907130A (pt) * 1998-09-29 2000-12-05 Samsung Electronics Co Ltd Dispositivos e processos de geração de código de espalhamento para um sistema de comunicação de acesso múltiplo por divisão de código (cmda) e de espectro espalhado para um sistema de comunicação de cdma.
KR100346188B1 (ko) * 1998-09-29 2002-07-26 삼성전자 주식회사 부호분할다중접속 통신시스템의 확산코드 생성 및 이를 이용한대역확산 장치 및 방법
KR20000032728A (ko) * 1998-11-17 2000-06-15 서평원 광대역무선멀티미디어통신시스템에서데이터통신시채널할당방법
US6519460B1 (en) 1999-05-10 2003-02-11 Telefonaktiebolaget Lm Ericsson Resource management in uncoordinated frequency hopping system
DE19958383A1 (de) 1999-12-03 2001-06-07 Bosch Gmbh Robert Verfahren zur Regelung der Sendeleistung einer Sendestation und Empfangsstation zur Durchführung des Verfahrens
JP3461150B2 (ja) * 2000-03-01 2003-10-27 双葉電子工業株式会社 スペースホッピング受信方式と受信電波推定方法
AU2002212563A1 (en) * 2000-08-25 2002-03-04 T. Kiran A technique for reducing processing power in 3g systems
US6693980B1 (en) * 2000-09-18 2004-02-17 Telasic Communications, Inc. Wideband fast-hopping receiver front-end and mixing method
US6954482B2 (en) * 2003-04-24 2005-10-11 Bae Systems Information And Electronic Systems Integration Inc. Soft-decision trellis-coded differential frequency-hopped spread spectrum (DFHSS)
US6999498B2 (en) * 2003-04-24 2006-02-14 Bae Systems Information And Electronic Systems Integration Inc. Multiuser detection aided multiple access differential frequency-hopped spread spectrum
AU2003272214A1 (en) * 2003-04-24 2004-11-23 Bae Systems Information And Electronic Systems Integration Inc Multiuser detection aided multiple access differential frequency-hopped spread spectrum
US8233572B2 (en) 2007-09-25 2012-07-31 Qualcomm Incorporated Interference mitigation for impulse-based communication
US11728843B2 (en) * 2021-10-19 2023-08-15 L3Harris Technologies, Inc. Frequency hopping interference detection using decoder codeword metrics

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4189677A (en) * 1978-03-13 1980-02-19 Purdue Research Foundation Demodulator unit for spread spectrum apparatus utilized in a cellular mobile communication system
US4355399A (en) * 1981-02-23 1982-10-19 Bell Telephone Laboratories, Incorporated Adaptive spread spectrum FH-MFSK transmitter and receiver
FR2575624A1 (fr) * 1984-12-28 1986-07-04 Mouly Michel Systeme de radiocommunications a sauts de frequence lents et a protocole mixte d'attribution de sequences
US4850036A (en) * 1987-08-21 1989-07-18 American Telephone And Telegraph Company Radio communication system using synchronous frequency hopping transmissions
US4866710A (en) * 1988-02-22 1989-09-12 Motorola, Inc. Reuse groups for scan monitoring in digital cellular systems
US5109390A (en) * 1989-11-07 1992-04-28 Qualcomm Incorporated Diversity receiver in a cdma cellular telephone system
US5210770A (en) * 1991-09-27 1993-05-11 Lockheed Missiles & Space Company, Inc. Multiple-signal spread-spectrum transceiver
JP2554219B2 (ja) * 1991-11-26 1996-11-13 日本電信電話株式会社 ディジタル信号の重畳伝送方式
US5216692A (en) * 1992-03-31 1993-06-01 Motorola, Inc. Method and apparatus for adjusting a power control threshold in a communication system
US5353301A (en) * 1993-09-17 1994-10-04 Motorola, Inc. Method and apparatus for combining multipath spread-spectrum signals

Also Published As

Publication number Publication date
GB2269075A (en) 1994-01-26
US5483550A (en) 1996-01-09
EP0605711A1 (en) 1994-07-13
FI941349A0 (fi) 1994-03-23
WO1994002996A1 (en) 1994-02-03
GB2269075B (en) 1996-04-10
GB9215773D0 (en) 1992-09-09

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Legal Events

Date Code Title Description
FD Application lapsed