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AssigneeKorea Telecom
InventorsDong In Kim, Yu Ro Lee, Yeon Soo Kim, Heung Ryel You
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A group code and a cell code are multiplexed and then used as a pilot code for discriminating a base station in asynchronous cellular CDMA (Code Division Multiple Access) communication systems. Using the multiplexed code, interferences are reduced in case of using two pilot codes. A method for acquiring a cell site station in asynchronous CDMA (Code Division Multiple Access) communication systems including a base station controller, a plurality of mobile stations and base stations, and discriminating the base stations by using different sequences, the method including the steps of: a) assigning a group code of the cell as a pilot code of an inphase channel of the base stations; b) assigning a cell code of the cell as a pilot code of a quadrature channel of the base stations; and c) multiplexing the pilot codes of inphase channel and the quadrature channel, and generating an inphase/quadrature pilot code.
A method for acquiring a cell site station in an asynchronous CDMA (Code Division Multiple Access) communication system comprising a base station controller, a plurality of mobile stations and base stations, and discriminating the base stations by using different sequences, the method comprising:
A method for acquiring a cell site station in an asynchronous CDMA (Code Division Multiple Access) communication system comprising a base station controller, a plurality of mobile stations and base stations, and discriminating the base stations by using different sequences, the method comprising:
A method for acquiring a cell site station in an asynchronous CDMA (Code Division Multiple Access) communication system with a hierarchical cell structure, wherein the system includes a base station controller, a plurality of mobile stations and base stations, wherein the hierarchical cell structure comprises a plurality of macro cells and micro cells, wherein each base station uses a different sequence, the method comprising:
A method for acquiring a cell site station in an asynchronous CDMA (Code Division Multiple Access) communication system with a hierarchical cell structure, wherein the system includes a base station controller, a plurality of mobile stations and base stations, wherein the hierarchical cell structure comprises a plurality of macro cells and micro cells, wherein each base station uses a different sequence, the method comprising:
A method for acquiring a cell site station in an asynchronous CDMA (Code Division Multiple Access) communication system with a hierarchical cell structure during a handoff which transfers communications between the mobile station and an old base station in a macro cell to communications between a mobile station and a new base station in a micro cell, wherein each base station uses a different sequence, the method comprising:
A method for acquiring a cell site station in an asynchronous CDMA (Code Division Multiple Access) communication system with a hierarchical cell structure during a handoff which transfers communications between a mobile station and an old base station in a macro cell to communications between the mobile station and a new base station in a micro cell, wherein each base station uses a different sequence, the method comprising:
A method for acquiring a cell site station in an asynchronous CDMA (Code Division Multiple Access) communication system with a hierarchical cell structure during a handoff which transfers communications between the mobile station and an old base station in a micro cell to communications between a mobile station and a new base station in a macro cell, wherein each base station uses a different sequence, the method comprising:
A method for acquiring a cell site station in an asynchronous CDMA (Code Division Multiple Access) communication system with a hierarchical cell structure during a handoff which transfers communications between the mobile station and an old base station in a micro cell to communications between a mobile station and a new base station in a macro cell, wherein each base station uses a different sequence, the method comprising:
Dependencies are inferred from the claim text.