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...

2005-06-07

2005-06-07

Pham, Chi (Department: 2663)

Multiplex communications

Generalized orthogonal or special mathematical techniques

Particular set of orthogonal functions

C370S335000

Reexamination Certificate

active

06904012

ABSTRACT:
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.

REFERENCES:
patent: 5608778 (1997-03-01), Partridge
patent: 5751761 (1998-05-01), Gilhousen
patent: 6072987 (2000-06-01), Willey
patent: 6088347 (2000-07-01), Minn et al.
patent: 6256301 (2001-07-01), Tiedemann, Jr. et al.
patent: 2362740 (2000-02-01), None
patent: WO 96/19879 (1996-06-01), None
I et al., Variable Spreading Gain CDMA with Adaptive Control for True Packet Switching Wireless Network, 1995, IEEE, pp. 725-730.
Adachi et al., Tree-structured generation of orthogonal spreading codes with different lengths for forward link of DS-CDMA mobile radio, Jan. 2, 1997, Electronics Letters, vol. 33, No. 1, pp 27-28.

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