Mobile communication control method, cellular system, mobile station, base station, and base station control apparatus

(Amended) A mobile communication control method in which one or a plurality of base stations transmit a pilot signal at a predetermined electric power, and

• one or a plurality of mobile stations periodically measure a reception quality of each pilot signal transmitted from the one or plurality of base stations to decide one or a plurality of base stations with which links are set up corresponding to the measurement result and decide one or a plurality of transmission base stations from among the decided one or plurality of base stations,
• said mobile communication control method characterized in that the one or plurality of mobile stations estimate a propagation environment and decide a measurement time of the pilot signal based upon the estimated propagation environment.

(Amended) A mobile communication control method in which one or a plurality of base stations transmit a pilot signal at a predetermined electric power, and

• one or a plurality of mobile stations periodically measure a reception quality of each pilot signal transmitted from the one or plurality of base stations to decide one or a plurality of base stations with which links are set up corresponding to the measurement result and decide one or a plurality of transmission base stations from among the decided one or plurality of base stations,
• said mobile communication control method characterized in that the one or plurality of mobile stations estimate a propagation environment, decide a predetermined threshold value for deciding the transmission base stations based upon the estimated propagation environment, and decide the one or plurality of base stations based upon the predetermined threshold value.

(Amended) A mobile communication control method in which one or a plurality of base stations transmit a pilot signal at a predetermined electric power, and

• one or a plurality of mobile stations periodically measure a reception quality of each pilot signal transmitted from the one or plurality of base stations to decide one or a plurality of base stations with which links are set up corresponding to the measurement result and decide one or a plurality of transmission base stations from among the decided one or plurality of base stations,
• said mobile communication control method characterized in that the one or plurality of mobile stations estimate a propagation environment to inform a base station controller, and
• the base station controller decides a measurement time of the pilot signal based upon the propagation environment to inform a corresponding mobile station.

(Amended) A mobile communication control method in which one or a plurality of base stations transmit a pilot signal at a predetermined electric power, and

• one or a plurality of mobile stations periodically measure a reception quality of each pilot signal transmitted from the one or plurality of base stations to decide one or a plurality of base stations with which links are set up corresponding to the measurement result and decide one or a plurality of transmission base stations from among the decided one or plurality of base stations,
• said mobile communication control method characterized in that the one or plurality of mobile stations estimate a propagation environment to inform a base station, and
• the base station decides a measurement time of the pilot signal based upon the propagation environment to inform a corresponding mobile station.

(Amended) A mobile communication control method in which one or a plurality of base stations transmit a pilot signal at a predetermined electric power, and

• one or a plurality of mobile stations periodically measure a reception quality of each pilot signal transmitted from the one or plurality of base stations to decide one or a plurality of base stations with which links are set up corresponding to the measurement result and decide one or a plurality of transmission base stations from among the decided one or plurality of base stations,
• said mobile communication control method characterized in that the one or plurality of base stations estimate a propagation environment of the one or plurality of mobile stations to inform a corresponding mobile station, and
• the mobile station receiving the information decides a measurement time of the pilot signal based upon the propagation environment.

(Amended) A mobile communication control method in which one or a plurality of base stations transmit a pilot signal at a predetermined electric power, and

• one or a plurality of mobile stations periodically measure a reception quality of each pilot signal transmitted from the one or plurality of base stations to decide one or a plurality of base stations with which links are set up corresponding to the measurement result and decide one or a plurality of transmission base stations from among the decided one or plurality of base stations,
• said mobile communication control method characterized in that the one or plurality of base stations estimate a propagation environment of the one or plurality of mobile stations to inform a corresponding mobile station, and
• the mobile station receiving the information decides a predetermined threshold value for deciding the transmission base stations based upon the propagation environment and decides the one or plurality of transmission base stations based upon the predetermined threshold value.

(Amended) A mobile communication control method in which one or a plurality of base stations transmit a pilot signal at a predetermined electric power, and

• one or a plurality of mobile stations periodically measure a reception quality of each pilot signal transmitted from the one or plurality of base stations to decide one or a plurality of base stations with which links are set up corresponding to the measurement result and decide one or a plurality of transmission base stations from among the decided one or plurality of base stations,
• said mobile communication control method characterized in that the one or plurality of base stations estimate a propagation environment of the one or plurality of mobile stations to inform a base station controller, and
• the base station controller decides a measurement time of the pilot signal based upon the propagation environment to inform a corresponding mobile station.

(Amended) A mobile communication control method in which one or a plurality of base stations transmit a pilot signal at a predetermined electric power, and

• one or a plurality of mobile stations periodically measure a reception quality of each pilot signal transmitted from the one or plurality of base stations to decide one or a plurality of base stations with which links are set up corresponding to the measurement result and decide one or a plurality of transmission base stations from among the decided one or plurality of base stations,
• said mobile communication control method characterized in that the one or plurality of base stations estimate a propagation environment of the one or plurality of mobile stations, decide a measurement time of the pilot signal based upon the propagation environment, and inform a corresponding mobile station.

(Amended) A mobile communication control method in which one or a plurality of base stations transmit a pilot signal at a predetermined electric power, and

• one or a plurality of mobile stations periodically measure a reception quality of each pilot signal transmitted from the one or plurality of base stations to decide one or a plurality of base stations with which links are set up corresponding to the measurement result and decide one or a plurality of transmission base stations from among the decided one or plurality of base stations,
• said mobile communication control method characterized in that the one or plurality of base stations estimate a propagation environment of the one or plurality of mobile stations, decide a predetermined threshold value for deciding the transmission base stations based upon the propagation environment, and inform a corresponding mobile station, and
• the one or plurality of mobile stations decide the one or plurality of transmission base stations based upon the predetermined threshold value.

(Amended) A cellular system in which one or a plurality of base stations transmit a pilot signal at a predetermined electric power, and

• one or a plurality of mobile stations periodically measure a reception quality of each pilot signal transmitted from the one or plurality of base stations to decide one or a plurality of base stations with which links are set up corresponding to the measurement result and decide one or a plurality of transmission base stations from among the decided one or plurality of base stations,
• said cellular system characterized in that the decision of the transmission base station is performed so that the number of transmission base stations is made as small as possible and the probability that the best base station in the reception quality of the pilot signal in the mobile station is included in the transmission base stations is made high based upon a predetermined condition.

(Amended) A cellular system in which one or a plurality of base stations transmit a pilot signal at a predetermined electric power, and

• one or a plurality of mobile stations periodically measure a reception quality of each pilot signal transmitted from the one or plurality of base stations to decide one or a plurality of base stations with which links are set up corresponding to the measurement result and decide one or a plurality of transmission base stations from among the decided one or plurality of base stations,
• said cellular system characterized in that the one or plurality of mobile stations estimate a propagation environment and decide a measurement time of the pilot signal based upon the estimated propagation environment.

(Amended) A cellular system in which one or a plurality of base stations transmit a pilot signal at a predetermined electric power, and

• one or a plurality of mobile stations periodically measure a reception quality of each pilot signal transmitted from the one or plurality of base stations to decide one or a plurality of base stations with which links are set up corresponding to the measurement result and decide one or a plurality of transmission base stations from among the decided one or plurality of base stations,
• said cellular system characterized in that the one or plurality of mobile stations estimate a propagation environment, decide a predetermined threshold value for deciding the transmission base stations based upon the estimated propagation environment, and decide the one or plurality of base stations based upon the predetermined threshold value.

(Amended) A cellular system in which one or a plurality of base stations transmit a pilot signal at a predetermined electric power, and

• one or a plurality of mobile stations periodically measure a reception quality of each pilot signal transmitted from the one or plurality of base stations to decide one or a plurality of base stations with which links are set up corresponding to the measurement result and decide one or a plurality of transmission base stations from among the decided one or plurality of base stations,
• said cellular system characterized in that the one or plurality of mobile stations estimate a propagation environment to inform a base station controller, and
• the base station controller decides a measurement time of the pilot signal based upon the propagation environment to inform a corresponding mobile station.

(Amended) A cellular system in which one or a plurality of base stations transmit a pilot signal at a predetermined electric power, and

• one or a plurality of mobile stations periodically measure a reception quality of each pilot signal transmitted from the one or plurality of base stations to decide one or a plurality of base stations with which links are set up corresponding to the measurement result and decide one or a plurality of transmission base stations from among the decided one or plurality of base stations,
• said cellular system characterized in that the one or plurality of mobile stations estimate a propagation environment to inform a base station, and
• the base station decides a measurement time of the pilot signal based upon the propagation environment to inform a corresponding mobile station.

(Amended) A cellular system in which one or a plurality of base stations transmit a pilot signal at a predetermined electric power, and

• one or a plurality of mobile stations periodically measure a reception quality of each pilot signal transmitted from the one or plurality of base stations to decide one or a plurality of base stations with which links are set up corresponding to the measurement result and decide one or a plurality of transmission base stations from among the decided one or plurality of base stations,
• said cellular system characterized in that the one or plurality of base stations estimate a propagation environment to inform the one or plurality of mobile stations to inform a corresponding mobile station, and
• the mobile station receiving the information decides a measurement time of the pilot signal based upon the propagation environment.

(Amended) A cellular system in which one or a plurality of base stations transmit a pilot signal at a predetermined electric power, and

• one or a plurality of mobile stations periodically measure a reception quality of each pilot signal transmitted from the one or plurality of base stations to decide one or a plurality of base stations with which links are set up corresponding to the measurement result and decide one or a plurality of transmission base stations from among the decided one or plurality of base stations,
• said cellular system characterized in that the one or plurality of base stations estimate a propagation environment of the one or plurality of mobile stations to inform a corresponding mobile station, and
• the mobile station receiving the information decides a predetermined threshold value for deciding the transmission base stations based upon the propagation environment and decides the one or plurality of transmission base stations based upon the predetermined threshold value.

(Amended) A cellular system in which one or a plurality of base stations transmit a pilot signal at a predetermined electric power, and

• one or a plurality of mobile stations periodically measure a reception quality of each pilot signal transmitted from the one or plurality of base stations to decide one or a plurality of base stations with which links are set up corresponding to the measurement result and decide one or a plurality of transmission base stations from among the decided one or plurality of base stations,
• said cellular system characterized in that the one or plurality of base stations estimate a propagation environment of the one or plurality of mobile stations to inform a base station controller, and
• the base station controller decides a measurement time of the pilot signal based upon the propagation environment to inform a corresponding mobile station.

(Amended) A cellular system in which one or a plurality of base stations transmit a pilot signal at a predetermined electric power, and

• one or a plurality of mobile stations periodically measure a reception quality of each pilot signal transmitted from the one or plurality of base stations to decide one or a plurality of base stations with which links are set up corresponding to the measurement result and decide one or a plurality of transmission base stations from among the decided one or plurality of base stations,
• said cellular system characterized in that the one or plurality of base stations estimate a propagation environment of the one or plurality of mobile stations, decide a measurement time of the pilot signal based upon the propagation environment, and inform a corresponding mobile station.

(Amended) A cellular system in which one or a plurality of base stations transmit a pilot signal at a predetermined electric power, and

• one or a plurality of mobile stations periodically measure a reception quality of each pilot signal transmitted from the one or plurality of base stations to decide one or a plurality of base stations with which links are set up corresponding to the measurement result and decide one or a plurality of transmission base stations from among the decided one or plurality of base stations,
• said cellular system characterized in that the one or plurality of base stations estimate a propagation environment of the one or plurality of mobile stations, decide a predetermined threshold value for deciding the transmission base stations based upon the propagation environment, and inform a corresponding mobile station, and
• the one or plurality of mobile stations decide the one or plurality of transmission base stations based upon the predetermined threshold value.

(Amended) A mobile station which receives a pilot signal transmitted from one or a plurality of base stations at a predetermined electric power and

• periodically measures a reception quality of each pilot signal transmitted from the one or plurality of base stations to decide one or a plurality of base stations with which links are set up corresponding to the measurement result and decide one or a plurality of transmission base stations from among the decided one or plurality of base stations,
• said mobile station characterized in that the decision of the transmission base station is performed so that the number of transmission base stations is made as small as possible and the probability that the best base station in the reception quality of the pilot signal in the mobile station is included in the transmission base stations is made high based upon a predetermined condition.

(Amended) A mobile station which receives a pilot signal transmitted from one or a plurality of base stations at a predetermined electric power and

• periodically measures a reception quality of each pilot signal transmitted from the one or plurality, of base stations to decide one or a plurality of base stations with which links are set up corresponding to the measurement result and decide one or a plurality of transmission base stations from among the decided one or plurality of base stations,
• said mobile station characterized by estimating a propagation environment and deciding a measurement time of the pilot signal based upon the estimated propagation environment.

(Amended) A mobile station which receives a pilot signal transmitted from one or a plurality of base stations at a predetermined electric power and

• periodically measures a reception quality of each pilot signal transmitted from the one or plurality of base stations to decide one or a plurality of base stations with which links are set up corresponding to the measurement result and decide one or a plurality of transmission base stations from among the decided one or plurality of base stations,
• said mobile station characterized by estimating a propagation environment, deciding a predetermined threshold value for deciding the transmission base stations based upon the estimated propagation environment, and deciding the one or plurality of base stations based upon the predetermined threshold value.

(Amended) A mobile station which receives a pilot signal transmitted from one or a plurality of base stations at a predetermined electric power and

• periodically measures a reception quality of each pilot signal transmitted from the one or plurality of base stations to decide one or a plurality of base stations with which links are set up corresponding to the measurement result and decide one or a plurality of transmission base stations from among the decided one or plurality of base stations,
• said mobile station characterized in that the mobile station estimates a propagation environment to inform a base station controller and
• a measurement time of the pilot signal decided based upon the propagation environment is received in the base station controller.

(Amended) A mobile station which receives a pilot signal transmitted from one or a plurality of base stations at a predetermined electric power and

• periodically measures a reception quality of each pilot signal transmitted from the one or plurality of base stations to decide one or a plurality of base stations with which links are set up corresponding to the measurement result and decide one or a plurality of transmission base stations from among the decided one or plurality of base stations,
• said mobile station characterized in that the mobile station estimates a propagation environment to inform a base station and
• a measurement time of the pilot signal decided based upon the propagation environment is received in the base station.

(Amended) A mobile station which receives a pilot signal transmitted from one or a plurality of base stations at a predetermined electric power and

• periodically measures a reception quality of each pilot signal transmitted from the one or plurality of base stations to decide one or a plurality of base stations with which links are set up corresponding to the measurement result and decide one or a plurality of transmission base stations from among the decided one or plurality of base stations,
• said mobile station characterized by receiving a propagation environment estimated in the one or plurality of base stations and
• deciding a measurement time of the pilot signal based upon the propagation environment.

(Amended) A mobile station which receives a pilot signal transmitted from one or a plurality of base stations at a predetermined electric power and

• periodically measures a reception quality of each pilot signal transmitted from the one or plurality of base stations to decide one or a plurality of base stations with which links are set up corresponding to the measurement result and decide one or a plurality of transmission base stations from among the decided one or plurality of base stations,
• said mobile station characterized by receiving a propagation environment estimated in the one or plurality of base stations,
• deciding a predetermined threshold value for deciding the transmission base stations based upon the propagation environment, and deciding the one or plurality of transmission base stations based upon the predetermined threshold value.

(Amended) A mobile station which receives a pilot signal transmitted from one or a plurality of base stations at a predetermined electric power and

• periodically measures a reception quality of each pilot signal transmitted from the one or plurality of base stations to decide one or a plurality of base stations with which links are set up corresponding to the measurement result and decide one or a plurality of transmission base stations from among the decided one or plurality of base stations,
• said mobile station characterized in that a base station controller is informed of a propagation environment estimated in the one or plurality of base stations, and
• a measurement time of the pilot signal decided based upon the propagation environment is received in the base station controller.

(Amended) A mobile station which receives a pilot signal transmitted from one or a plurality of base stations at a predetermined electric power and

• periodically measures a reception quality of each pilot signal transmitted from the one or plurality of base stations to decide one or a plurality of base stations with which links are set up corresponding to the measurement result and decide one or a plurality of transmission base stations from among the decided one or plurality of base stations,
• said mobile station characterized by receiving a measurement time of the pilot signal decided in the one or plurality of base stations based upon a propagation environment of the one or plurality of mobile stations estimated in the one or plurality of base stations.

A mobile station which receives a pilot signal transmitted from one or a plurality of base stations at a predetermined electric power and

• periodically measures a reception quality of each pilot signal transmitted from the one or plurality of base stations to decide one or a plurality of base stations with which links are set up corresponding to the measurement result and decide one or a plurality of transmission base stations from among the decided one or plurality of base stations,
• said mobile station characterized by receiving a predetermined threshold value for deciding the transmission base stations decided in the one or plurality of base stations based upon the propagation environment of the one or plurality of mobile stations estimated in the one or plurality of base stations.

(Amended) A base station which transmits a pilot signal at a predetermined electric power,

• decides one or a plurality of base stations with which links are set up decided corresponding to a reception quality of the pilot signal periodically measured in one or a plurality of mobile stations, and receives information of one or a plurality of transmission base stations selected from among the decided one or plurality of base stations,
• said base station characterized in that the decision of the transmission base station is performed so that the number of transmission base stations is made as small as possible and the probability that the best base station in the reception quality of the pilot signal in the mobile station is included in the transmission base stations is made high based upon a predetermined condition.

(Amended) A base station transmitting a pilot signal at a predetermined electric power,

• deciding one or a plurality of base stations with which links are set up decided in one or a plurality of mobile stations corresponding to a reception quality of the pilot signal periodically measured during a measurement time of the pilot signal decided based upon a propagation environment estimated in the one or plurality of mobile stations, and receiving information of one or a plurality of transmission base stations selected from among the decided one or plurality of base stations.

(Amended) A base station which transmits a pilot signal at a predetermined electric power,

• decides one or a plurality of base stations with which links are set up decided corresponding to a reception quality of the pilot signal periodically measured in one or a plurality of mobile stations, and receives information of one or a plurality of transmission base stations selected from among the decided one or plurality of base stations,
• said base station characterized by receiving the information of the one or plurality of transmission base stations decided in the one or plurality of mobile stations based upon a predetermined threshold value for deciding the transmission base stations decided based upon a propagation environment estimated in the one or plurality of mobile stations.

(Amended) A base station which transmits a pilot signal at a predetermined electric power,

• decides one or a plurality of base stations with which links are set up decided corresponding to a reception quality of the pilot signal periodically measured in one or a plurality of mobile stations, and receives information of one or a plurality of transmission base stations selected from among the decided one or plurality of base stations,
• said base station characterized in that the base station receives a propagation environment estimated in the one or plurality of mobile stations to inform a base station controller and
• a measurement time of the pilot signal decided based upon the propagation environment is received in the base station controller to inform a corresponding mobile station.

(Amended) A base station which transmits a pilot signal at a predetermined electric power,

• decides one or a plurality of base stations with which links are set up decided corresponding to a reception quality of the pilot signal periodically measured in one or a plurality of mobile stations, and receives information of one or a plurality of transmission base stations selected from among the decided one or plurality of base stations,
• said base station characterized in that the base station receives a propagation environment of a mobile station estimated in the one or plurality of mobile stations to inform a base station controller and
• a predetermined threshold value for deciding the transmission base stations decided based upon the propagation environment is received in the base station controller to inform a corresponding mobile station.

(Amended) A base station which transmits a pilot signal at a predetermined electric power,

• decides one or a plurality of base stations with which links are set up decided corresponding to a reception quality of the pilot signal periodically measured in one or a plurality of mobile stations, and receives information of one or a plurality of transmission base stations selected from among the decided one or plurality of base stations,
• said base station characterized by receiving a propagation environment of a mobile station estimated in the one or plurality of mobile stations and
• deciding a measurement time of the pilot signal based upon the propagation environment to inform a corresponding mobile station.

(Amended) A base station which transmits a pilot signal at a predetermined electric power,

• decides one or a plurality of base stations with which links are set up decided corresponding to a reception quality of the pilot signal periodically measured in one or a plurality of mobile stations, and receives information of one or a plurality of transmission base stations selected from among the decided one or plurality of base stations,
• said base station characterized by receiving a propagation environment of a mobile station estimated in the one or plurality of mobile stations and
• deciding a predetermined threshold value for deciding the transmission base stations based upon the propagation environment to inform a corresponding mobile station.

(Amended) A base station which transmits a pilot signal at a predetermined electric power,

• decides one or a plurality of base stations with which links are set up decided corresponding to a reception quality of the pilot signal periodically measured in one or a plurality of mobile stations, and receives information of one or a plurality of transmission base stations selected from among the decided one or plurality of base stations,
• said base station characterized by estimating a propagation environment of the one or plurality of mobile stations to inform a corresponding mobile station and
• letting the one or plurality of mobile stations decide a measurement time of the pilot signal based upon the propagation environment.

(Amended) A base station which transmits a pilot signal at a predetermined electric power,

• decides one or a plurality of base stations with which links are set up decided corresponding to a reception quality of the pilot signal periodically measured in one or a plurality of mobile stations, and receives information of one or a plurality of transmission base stations selected from among the decided one or plurality of base stations,
• said base station characterized by estimating a propagation environment of the one or plurality of mobile stations to inform a corresponding mobile station and
• letting the mobile station receiving the information decide a predetermined threshold value for deciding the transmission base stations based upon the propagation environment.

(Amended) A base station which transmits a pilot signal at a predetermined electric power,

• decides one or a plurality of base stations with which links are set up decided corresponding to a reception quality of the pilot signal periodically measured in one or a plurality of mobile stations, and receives information of one or a plurality of transmission base stations selected from among the decided one or plurality of base stations,
• said base station characterized in that the base station estimates a propagation environment of the one or plurality of mobile stations to inform a base station controller and
• a measurement time of the pilot signal decided based upon the propagation environment is received in the base station controller to inform a corresponding mobile station.

(Amended) A base station which transmits a pilot signal at a predetermined electric power,

• decides one or a plurality of base stations with which links are set up decided corresponding to a reception quality of the pilot signal periodically measured in one or a plurality of mobile stations, and receives information of one or a plurality of transmission base stations selected from among the decided one or plurality of base stations,
• said base station characterized in that the base station estimates a propagation environment of the one or plurality of mobile stations to inform a base station controller and
• a predetermined threshold value for deciding the transmission base stations decided based upon the propagation environment is received in the base station controller to inform a corresponding mobile station.

(Amended) A base station which transmits a pilot signal at a predetermined electric power,

• decides one or a plurality of base stations with which links are set up decided corresponding to a reception quality of the pilot signal periodically measured in one or a plurality of mobile stations, and receives information of one or a plurality of transmission base stations selected from among the decided one or plurality of base stations,
• said base station characterized by estimating a propagation environment of the one or plurality of mobile stations and deciding a measurement time of the pilot signal based upon the propagation environment to inform a corresponding mobile station.

(Amended) A base station which transmits a pilot signal at a predetermined electric power,

• decides one or a plurality of base stations with which links are set up decided corresponding to a reception quality of the pilot signal periodically measured in one or a plurality of mobile stations, and receives information of one or a plurality of transmission base stations selected from among the decided one or plurality of base stations,
• said base station characterized by estimating a propagation environment of the one or plurality of mobile stations, deciding a predetermined threshold value for deciding the transmission base stations based upon the propagation environment to inform a corresponding mobile station, and
• letting the one or plurality of mobile stations decide the one or plurality of transmission base stations based upon the predetermined threshold value.

A base station controller characterized in that a pilot signal transmitted at a predetermined electric power in one or a plurality of base stations is received in one or a plurality of mobile stations, said base station controller receiving a propagation environment of a mobile station estimated based upon the pilot signal in one or a plurality of mobile stations, deciding a measurement time of the pilot signal based upon the propagation environment to inform a corresponding mobile station, letting one or a plurality of mobile stations periodically measure a reception quality of each pilot signal transmitted from the one or plurality of base stations to decide one or a plurality of base stations with which links are set up corresponding to the measurement result, and letting one or a plurality of mobile stations decide one or a plurality of transmission base stations from among the decided one or plurality of base stations.

A base station controller characterized in that a pilot signal transmitted at a predetermined electric power in one or a plurality of base stations is received in one or a plurality of mobile stations, said base station controller receiving a propagation environment of a mobile station estimated based upon the pilot signal in the one or plurality of mobile stations, deciding a predetermined threshold value for deciding one or a plurality of transmission base stations from among one or a plurality of base stations with which links are set up based upon the propagation environment to inform a corresponding mobile station, letting the one or plurality of mobile stations decide the one or plurality of transmission base stations based upon the predetermined threshold value.

A base station controller characterized by receiving a propagation environment of one or a plurality of mobile stations estimated in one or a plurality of base stations, deciding a measurement time of a pilot signal measured in one or a plurality of mobile stations and transmitted from the one or plurality of base stations at a predetermined electric power based upon the propagation environment to inform a corresponding mobile station, letting the one or plurality of mobile stations periodically measure a reception quality of each pilot signal transmitted from the one or plurality of base stations to decide one or a plurality of base stations with which links are set up corresponding to the measurement result, and letting one or a plurality of mobile stations decide one or a plurality of transmission base stations from among the decided one or plurality of base stations.

A base station controller characterized by receiving a propagation environment of one or a plurality of mobile stations estimated in one or a plurality of base stations, deciding a predetermined threshold value for deciding one or a plurality of transmission base stations from among one or a plurality of base stations with which links are set up based upon the propagation environment to inform a corresponding mobile station, letting the one or plurality of mobile stations decide one or a plurality of transmission base stations based upon the predetermined threshold value from among one or a plurality of base stations with which links are set up decided based upon a reception quality of each pilot signal transmitted from the one or plurality of base stations, said each pilot signal being periodically measured.

A mobile communication control method in which one or a plurality of base stations transmit a pilot signal at a predetermined electric power, and

• one or a plurality of mobile stations periodically measure a reception quality of each pilot signal transmitted from the one or plurality of base stations to decide one or a plurality of base stations with which links are set up corresponding to the measurement result and decide one or a plurality of transmission base stations from among the decided one or plurality of base stations,
• said mobile communication control method characterized in that a predetermined condition for deciding the transmission base station is altered for each mobile station.