초록 ▼

In a code division multiple access (CDMA) spread spectrum cellular communication system in which a mobile station user communicates with another system user via at least one base station, wherein each base station transmits a common pilot signal of a different code phase with respect to other base s

In a code division multiple access (CDMA) spread spectrum cellular communication system in which a mobile station user communicates with another system user via at least one base station, wherein each base station transmits a common pilot signal of a different code phase with respect to other base stations in said system, a method for directing communications between said mobile station user and said base stations. The mobile station monitors the signal strength of pilots and reports the measured signal strength to a system controller via the base station through which it is communicating. Command messages from the system controller to a new base station and the mobiles station establishes communication through the new base station in addition to the communication through the current base station. When the mobile station detects the falling below a predetermined level of the signal strength of a pilot corresponding to at least one of the base stations through which the mobile station is communicating, the mobile station reports the measured signal strength indicative of the corresponding base station to the system controller via the base stations through which it is communicating. Command messages from the system controller to the identified base station and the mobiles station terminates communication through the corresponding base station while communications through the other base station or base stations continue.

대표청구항 ▼

In a cellular communication system in which a mobile user communicates with other users via at least one base station, wherein each of a plurality of base stations within said system transmits a unique pilot signal, a mobile station transceiver comprising: a pilot signal strength measurement circuit

In a cellular communication system in which a mobile user communicates with other users via at least one base station, wherein each of a plurality of base stations within said system transmits a unique pilot signal, a mobile station transceiver comprising: a pilot signal strength measurement circuit for measuring strength of base station transmitted pilot signals and for generating a first signal strength message when one or more of said measured pilot signals, from base stations not currently in communication with said mobile station transceiver, exceed a first predetermined level; a mobile station transmitter for transmitting said first signal strength message to at least one of said base stations with which said mobile user is currently in communication; and a mobile station receiver for receiving a first direction signal from at least one of said base stations with which said mobile user is currently in communication; wherein in response to said first received direction signal communication is established between said mobile station transceiver and at least one of said base stations from which were received said measured pilot signals exceeding said first predetermined level.