WO1998038816B1 - Planification et attribution de frequences radioelectriques dans un environnement a spectre discontinu - Google Patents

Planification et attribution de frequences radioelectriques dans un environnement a spectre discontinu

Info

Publication number
WO1998038816B1
WO1998038816B1 PCT/US1998/002691 US9802691W WO9838816B1 WO 1998038816 B1 WO1998038816 B1 WO 1998038816B1 US 9802691 W US9802691 W US 9802691W WO 9838816 B1 WO9838816 B1 WO 9838816B1
Authority
WO
WIPO (PCT)
Prior art keywords
channels
discontiguous
block
adjacent
channelization
Prior art date
Application number
PCT/US1998/002691
Other languages
English (en)
Other versions
WO1998038816A3 (fr
WO1998038816A9 (fr
WO1998038816A2 (fr
Filing date
Publication date
Priority claimed from US08/806,934 external-priority patent/US5960351A/en
Application filed filed Critical
Priority to BR9807764-3A priority Critical patent/BR9807764A/pt
Priority to CA002282372A priority patent/CA2282372A1/fr
Priority to AU61592/98A priority patent/AU6159298A/en
Publication of WO1998038816A2 publication Critical patent/WO1998038816A2/fr
Publication of WO1998038816A3 publication Critical patent/WO1998038816A3/fr
Publication of WO1998038816B1 publication Critical patent/WO1998038816B1/fr
Publication of WO1998038816A9 publication Critical patent/WO1998038816A9/fr

Links

Abstract

L'invention porte sur des techniques et des systèmes, qui, permettant de formaliser une planification des fréquences à spectre discontinu, maximisent les capacités du système tout en minimisant l'éventualité d'une survenue de brouillage dans le canal adjacent. Dans le contexte d'une plan d'ensemble des fréquences du système, il est possible de faire intervenir une séparation spatiale pour décaler le chevauchement résultant d'un mappage de découpage en canaux lorsque des fréquences supplémentaires font défaut. On peut alors utiliser une modification et/ou une définition site par site pour empêcher la survenue de produits d'intermodulation et/ou des brouillages dans le canal adjacent. Il faut alors prendre en considération un certain nombre de facteurs, au nombre desquels, notamment, la position du canal de commande de canal et la séparation dans un nouveau spectre, l'utilisation de blocs de probabilité, les seuils pour brouillage dans le canal adjacent, le brouillage dans le canal adjacent symétrique contre brouillage asymétrique, le type de plan de fréquence, les effets d'intermodulation, la topographie locale, les conditions d'environnement de fréquence et la disponibilité du site. Ces techniques se révèlent des plus utiles, mais sans se limiter à cet usage, s'agissant d'établir un système de communication radio cellulaire utilisant une bande de fréquence inférieure par superposition d'un découpage en canaux de 30 kHz sur des parties de bande de radio mobile spécialisé (SMR) à découpage de canaux de 25 kHz.
PCT/US1998/002691 1997-02-26 1998-02-13 Planification et attribution de frequences radioelectriques dans un environnement a spectre discontinu WO1998038816A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BR9807764-3A BR9807764A (pt) 1997-02-26 1998-02-13 Processos para derivar freqüências de operação de rf não contíguas para um sistema de rádio comunicações e para derivar um plano de freqüência para um sistema de comunicações rádio celulares, sistema de rádio celular de banda baixa e, sistema de comunicações rádio telefônicas celulares de banda baixa.
CA002282372A CA2282372A1 (fr) 1997-02-26 1998-02-13 Planification et attribution de frequences radioelectriques dans un environnement a spectre discontinu
AU61592/98A AU6159298A (en) 1997-02-26 1998-02-13 Radio frequency planning and assignment in a discontiguous spectrum environment

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/806,934 1997-02-26
US08/806,934 US5960351A (en) 1997-02-26 1997-02-26 Radio frequency planning and assignment in a discontiguous spectrum environment

Publications (4)

Publication Number Publication Date
WO1998038816A2 WO1998038816A2 (fr) 1998-09-03
WO1998038816A3 WO1998038816A3 (fr) 1999-01-07
WO1998038816B1 true WO1998038816B1 (fr) 1999-02-18
WO1998038816A9 WO1998038816A9 (fr) 1999-03-18

Family

ID=25195167

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/002691 WO1998038816A2 (fr) 1997-02-26 1998-02-13 Planification et attribution de frequences radioelectriques dans un environnement a spectre discontinu

Country Status (5)

Country Link
US (1) US5960351A (fr)
AU (1) AU6159298A (fr)
BR (1) BR9807764A (fr)
CA (1) CA2282372A1 (fr)
WO (1) WO1998038816A2 (fr)

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