GB2295930B - Method and apparatus for implementing frequency hopping in a TDMA system - Google Patents

Method and apparatus for implementing frequency hopping in a TDMA system

Info

Publication number
GB2295930B
GB2295930B GB9424596A GB9424596A GB2295930B GB 2295930 B GB2295930 B GB 2295930B GB 9424596 A GB9424596 A GB 9424596A GB 9424596 A GB9424596 A GB 9424596A GB 2295930 B GB2295930 B GB 2295930B
Authority
GB
United Kingdom
Prior art keywords
frequency hopping
tdma system
implementing frequency
implementing
tdma
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
GB9424596A
Other versions
GB9424596D0 (en
GB2295930A (en
Inventor
Paul Howard
Alan Jones
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.)
Motorola Solutions UK Ltd
Original Assignee
Motorola 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 Motorola Ltd filed Critical Motorola Ltd
Priority to GB9424596A priority Critical patent/GB2295930B/en
Publication of GB9424596D0 publication Critical patent/GB9424596D0/en
Priority to CA002182297A priority patent/CA2182297A1/en
Priority to JP8517318A priority patent/JPH09511639A/en
Priority to EP95941673A priority patent/EP0742974A1/en
Priority to PCT/EP1995/004783 priority patent/WO1996018245A1/en
Publication of GB2295930A publication Critical patent/GB2295930A/en
Application granted granted Critical
Publication of GB2295930B publication Critical patent/GB2295930B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/22—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop
    • H03L7/23—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop with pulse counters or frequency dividers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
    • H03L7/107—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using a variable transfer function for the loop, e.g. low pass filter having a variable bandwidth
    • H03L7/1077—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using a variable transfer function for the loop, e.g. low pass filter having a variable bandwidth by changing characteristics of the phase or frequency detection means
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Mobile Radio Communication Systems (AREA)
GB9424596A 1994-12-06 1994-12-06 Method and apparatus for implementing frequency hopping in a TDMA system Expired - Fee Related GB2295930B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB9424596A GB2295930B (en) 1994-12-06 1994-12-06 Method and apparatus for implementing frequency hopping in a TDMA system
CA002182297A CA2182297A1 (en) 1994-12-06 1995-12-05 Method and apparatus for implementing frequency hopping in a tdma system
JP8517318A JPH09511639A (en) 1994-12-06 1995-12-05 Method and apparatus for performing frequency hopping in a time domain system
EP95941673A EP0742974A1 (en) 1994-12-06 1995-12-05 Phase locked loop controlled frequency synthesizer for use in frequency hopping
PCT/EP1995/004783 WO1996018245A1 (en) 1994-12-06 1995-12-05 Phase locked loop controlled frequency synthesizer for use in frequency hopping

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9424596A GB2295930B (en) 1994-12-06 1994-12-06 Method and apparatus for implementing frequency hopping in a TDMA system

Publications (3)

Publication Number Publication Date
GB9424596D0 GB9424596D0 (en) 1995-02-15
GB2295930A GB2295930A (en) 1996-06-12
GB2295930B true GB2295930B (en) 1999-11-24

Family

ID=10765494

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9424596A Expired - Fee Related GB2295930B (en) 1994-12-06 1994-12-06 Method and apparatus for implementing frequency hopping in a TDMA system

Country Status (5)

Country Link
EP (1) EP0742974A1 (en)
JP (1) JPH09511639A (en)
CA (1) CA2182297A1 (en)
GB (1) GB2295930B (en)
WO (1) WO1996018245A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2323227B (en) * 1997-03-12 2001-01-03 Roke Manor Research Synthesiser
CA2294542C (en) * 1997-06-24 2007-03-20 Siemens Aktiengesellschaft Method and device for radiotransmission
GB2340679B (en) * 1998-08-17 2001-11-28 Ericsson Telefon Ab L M Frequency synthesis
US7602253B2 (en) * 2006-12-11 2009-10-13 Silicon Image, Inc. Adaptive bandwidth phase locked loop with feedforward divider

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4330758A (en) * 1980-02-20 1982-05-18 Motorola, Inc. Synchronized frequency synthesizer with high speed lock
US4568888A (en) * 1983-11-08 1986-02-04 Trw Inc. PLL Fast frequency synthesizer with memories for coarse tuning and loop gain correction
US4752749A (en) * 1986-12-22 1988-06-21 Rockwell International Corporation Fast response tuner
US4937536A (en) * 1988-08-19 1990-06-26 Hughes Aircraft Company Fast settling phase lock loop
US5175511A (en) * 1991-02-14 1992-12-29 Nec Corporation Phase-locked loop synthesizer for use in tdm communications system
EP0565127A2 (en) * 1992-04-10 1993-10-13 Nec Corporation TDMA mobile unit frequency synthesizer having power saving mode during transmit and receive slots

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2246487C2 (en) * 1972-09-22 1974-10-24 Siemens Ag, 1000 Berlin Und 8000 Muenchen Vibration generator for particularly short electromagnetic waves
FR2535545B1 (en) * 1982-10-29 1989-08-04 Thomson Csf FAST ACQUISITION TIME SYNTHESIZER AND FREQUENCY HOP RADIO TRANSMISSION SYSTEM COMPRISING SUCH A SYNTHESIZER
FR2612028B1 (en) * 1987-03-05 1991-07-05 Aerospatiale SYSTEM FOR THE GENERATION OF MICROWAVE JUMPS
US5224121A (en) * 1992-06-04 1993-06-29 Motorola, Inc. Rolling synthesizer method for baseband slow frequency hopping

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4330758A (en) * 1980-02-20 1982-05-18 Motorola, Inc. Synchronized frequency synthesizer with high speed lock
US4568888A (en) * 1983-11-08 1986-02-04 Trw Inc. PLL Fast frequency synthesizer with memories for coarse tuning and loop gain correction
US4752749A (en) * 1986-12-22 1988-06-21 Rockwell International Corporation Fast response tuner
US4937536A (en) * 1988-08-19 1990-06-26 Hughes Aircraft Company Fast settling phase lock loop
US5175511A (en) * 1991-02-14 1992-12-29 Nec Corporation Phase-locked loop synthesizer for use in tdm communications system
EP0565127A2 (en) * 1992-04-10 1993-10-13 Nec Corporation TDMA mobile unit frequency synthesizer having power saving mode during transmit and receive slots

Also Published As

Publication number Publication date
JPH09511639A (en) 1997-11-18
GB9424596D0 (en) 1995-02-15
EP0742974A1 (en) 1996-11-20
CA2182297A1 (en) 1996-06-13
WO1996018245A1 (en) 1996-06-13
GB2295930A (en) 1996-06-12

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Legal Events

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

Effective date: 20011206