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AssigneeKorea Mobile Telecommunications Corp.
InventorsEen Kee Hong, Dong Ho Kim, Yeon Dae Yang, Byeong Chul Ahn, Yong Wan Park, Seong Moon Ryu, Tae Young Lee, An Na Choi
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The present invention discloses a method for accessing a cell, and more particularly, to a method for acquiring an initial synchronization using two pilot channels in a CDMA (Code Division Multiple Access) communication system of an asynchronous or quasi-synchronous mode. In accordance with the present invention, a CDMA communication system of an quasi-synchronous mode comprises the steps of synchronizing the mobile station with a cluster pilot, and searching for cell pilots on the basis of the cluster synchronization channel set up by the cluster pilot, and synchronizing the mobile station with the cell pilot having a maximum sensitivity, whereby the mobile station is synchronized with the base station through the cluster pilot and the cell pilot. Also, in accordance with the present invention, a CDMA communication system of a asynchronous mode comprises the steps of synchronizing the mobile station with a cluster pilot, and searching for all cell pilots in a cluster of which synchronization has been set up by the cluster pilot, and synchronizing the mobile station with the cell pilot having a maximum sensitivity, whereby the mobile station is synchronized with the base station through the cluster pilot and the cell pilot.
In a CDMA communication system including base stations, a base station controller and mobile stations, and discriminating the base stations by using different sequences, wherein the base station receives a synchronization signal from the base station controller, a method for accessing a cell, the method comprising the steps of:
In a CDMA communication system with a multi-layer structure, wherein the system includes base stations, a base station controller and mobile stations, and discriminates the base stations using different sequences, and wherein the base station receives a synchronization signal from the base station a controller, a method for accessing a cell in the mobile stations, the method comprising the steps of:
In a CDMA communication system including base stations, a base station controller and mobile stations, and discriminating the base stations using different sequences, wherein the base station receives a synchronization signal from the base station controller, and wherein the system transmits cluster pilots representing a cluster which is a group of cells in a center of the cluster, a method for accessing a cell in said mobile stations, the method comprising the steps of:
In a CDMA communication including base stations, a base station controller and mobile stations, and discriminating the base stations using different sequences, wherein the base station receives a synchronization signal from the base station controller, and wherein all cells of the base stations transmit cluster pilot and cell pilots, the mobile stations for accessing a cell, a method for accessing a cell in the mobile stations, the method comprising the steps of:
In a CDMA communication system including base stations, a base station controller and mobile stations, and discriminating the base stations using different sequences, a method for accessing a cell, the method comprising the steps of:
In a CDMA communication system with a multi-layer structure, wherein the system includes base stations, a base station controller and mobile stations, and discriminates the base stations using different sequences, the mobile stations for accessing a cell, a method for accessing a cell in the mobile stations, the method comprising the steps of:
In a CDMA communication system including base stations, a base station controller and mobile stations, and discriminating the base stations using different sequences, wherein the base station receives a synchronization signal from the base station controller, and wherein the system transmits cluster pilots in a center of a cluster, a method for accessing a cell in the mobile stations, the method comprising the steps of:
In a CDMA communication system including base stations, a base station controller and mobile stations, and discriminating the base stations using different sequences, wherein the base station receives a synchronization signal from the base station controller, and wherein all cells of the base stations transmit cluster pilots each representing a cluster which is a group of cells and cell pilots each representing a cell, the mobile stations for accessing a cell, a method for accessing a cell in said mobile stations, the method comprising the steps of:
In a CDMA communication system including base stations, a base station controller and mobile stations, and discriminating the base station by using different sequences, a method for accessing a cell, the method comprising the step of:
In a CDMA communication system including base stations, a base station controller and mobile stations, and discriminating the base station by using different sequences, a method for accessing a cell, the method comprising the steps of:
In a CDMA communication system including base stations, a base station controller and mobile stations, and discriminating the base station by using different sequences, a method for accessing a cell, the method comprising the steps of:
Dependencies are inferred from the claim text.