H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
H04Q 7/38 (2006.01)
Patent
CA 2207032
A perch channel transmission and cell selection method for a CDMA mobile communication system which is capable i increasing a system capacity by reducing an amount of interference power. In this method, each base station intermittently transmits a perch channel which is spread by using a spread code assigned to each base station. Then, a mobile station receives more than one perch channels transmitted from more than one base stations, measures a receiving level of an intermittently transmitted portion of each received perch channel, and judges a located cell according to measured receiving levels of these more than one perch channels.
L'invention est une méthode de sélection de cellules pour les systèmes de communication mobiles AMDC qui peut accroître la capacité de ces systèmes en réduisant la puissance des signaux brouilleurs. Dans cette méthode, chaque station de base émet de façon intermittente sur un canal qui est étalé au moyen d'un code d'étalement affecté à chaque station de base. Une station mobile capte ensuite les signaux émis sur des canaux différents par des stations de base différentes, mesure le niveau du signal émis de façon intermittente sur chaque canal capté et évalue une cellule donnée d'après les niveaux de réception mesurés dans ces canaux.
Nakamura Takehiro
Ohno Kouji
Onoe Seizo
Gowling Lafleur Henderson Llp
Ntt Mobile Communications Network Inc.
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