GB1311253A - Apparatus for detecting a free channel in a telecommunications system - Google Patents

Apparatus for detecting a free channel in a telecommunications system

Info

Publication number
GB1311253A
GB1311253A GB1522471*[A GB1522471A GB1311253A GB 1311253 A GB1311253 A GB 1311253A GB 1522471 A GB1522471 A GB 1522471A GB 1311253 A GB1311253 A GB 1311253A
Authority
GB
United Kingdom
Prior art keywords
channel
scan
level
intensity
frequency
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
Application number
GB1522471*[A
Other languages
English (en)
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.)
Alcatel CIT SA
Nokia Inc
Original Assignee
Compagnie Industrielle de Telecommunication CIT Alcatel SA
Nokia Inc
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 Compagnie Industrielle de Telecommunication CIT Alcatel SA, Nokia Inc filed Critical Compagnie Industrielle de Telecommunication CIT Alcatel SA
Publication of GB1311253A publication Critical patent/GB1311253A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/20—Frequency-division multiplex systems in which at least one carrier is angle-modulated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
GB1522471*[A 1970-05-15 1971-05-17 Apparatus for detecting a free channel in a telecommunications system Expired GB1311253A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7017867A FR2087369A5 (enExample) 1970-05-15 1970-05-15

Publications (1)

Publication Number Publication Date
GB1311253A true GB1311253A (en) 1973-03-28

Family

ID=9055614

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1522471*[A Expired GB1311253A (en) 1970-05-15 1971-05-17 Apparatus for detecting a free channel in a telecommunications system

Country Status (8)

Country Link
BE (1) BE766837A (enExample)
CA (1) CA978601A (enExample)
DE (1) DE2124148C2 (enExample)
FR (1) FR2087369A5 (enExample)
GB (1) GB1311253A (enExample)
NL (1) NL176515C (enExample)
SE (1) SE368655B (enExample)
ZA (1) ZA713006B (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2229065A (en) * 1989-01-18 1990-09-12 Nec Corp Method of connecting channels of decentralised radio systems

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HUT69370A (en) * 1992-05-08 1995-09-28 Motorola Inc Arrangement for selective tuning of a radio receiver
US5711001A (en) * 1992-05-08 1998-01-20 Motorola, Inc. Method and circuit for acquisition by a radio receiver

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB811224A (enExample) * 1955-01-29
DE1018485B (de) * 1955-03-03 1957-10-31 Siemens Ag Schaltungsanordnung fuer ueber Zwischenstationen verlaufende Fernsprech-Funkverbindungen zur Feststellung gestoerter Zwischenstationen
NL285959A (enExample) * 1961-12-01

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2229065A (en) * 1989-01-18 1990-09-12 Nec Corp Method of connecting channels of decentralised radio systems
GB2229065B (en) * 1989-01-18 1993-08-25 Nec Corp Method of connecting channels of decentralized radio systems

Also Published As

Publication number Publication date
BE766837A (fr) 1971-11-08
DE2124148C2 (de) 1982-09-16
NL7106420A (enExample) 1971-11-17
ZA713006B (en) 1972-01-26
DE2124148A1 (de) 1971-11-25
CA978601A (en) 1975-11-25
NL176515C (nl) 1985-04-16
FR2087369A5 (enExample) 1971-12-31
SE368655B (enExample) 1974-07-08
NL176515B (nl) 1984-11-16

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Legal Events

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