Apparatus and method for allocating forward common channels...

Details Apparatus and method for allocating forward common channels... Apparatus and method for allocating forward common channels...

H - Electricity

04

B

H04B 7/216 (2006.01) H04J 11/00 (2006.01) H04J 13/00 (2006.01) H04Q 7/38 (2006.01)

Patent

CA 2327275

A device for allocating a forward common channel in a CDMA (Code Division Multiple Access) communication system, including: a plurality of channel transmitters; a storage medium for storing, as orthogonal code numbers for the forward common channel used in a second CDMA communication system, orthogonal code numbers which cannot maintain an orthogonality due to an orthogonal code that the forward common channel uses at a maximum data rate, the orthogonal code being used in a first CDMA communication system; and a controller for reading the orthogonal code numbers from the storage medium according to mobile station type information from a mobile station, and allocating a specific forward common channel such that forward common channel message is spread and transmitted by a corresponding one of the channel transmitters with a specific one of the read orthogonal code numbers.

L'invention concerne un dispositif permettant l'affectation d'un canal aller commun dans un système de communication AMDC (Accès Multiple par Différence de Code) comprenant : une pluralité d'émetteurs canal ; un support d'enregistrement destiné au stockage, sous forme de nombres de codes orthogonaux pour le canal aller commun utilisé dans un second système de communication AMDC, des nombres de codes orthogonaux ne pouvant pas conserver l'orthogonalité en raison d'un code orthogonal que le canal aller commun utilise à un débit binaire maximum, le code orthogonal étant utilisé dans un premier système de communication AMDC ; et un contrôleur pour lire les nombres de codes orthogonaux sur le support d'enregistrement en fonction des informations de type station mobile telles que celles fournies par une station mobile. Ledit dispositif permet également l'affectation d'un canal aller commun spécifique, de manière que le message du canal aller commun soit étalé et émis par l'émetteur canal correspondant, avec un nombre de code orthogonal de lecture spécifique.

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