Communication terminal device and communication control method
First Claim
1. A radio communication terminal comprising:
- a memory; and
a processor coupled to the memory and configuredto be controlled by one of a plurality of base stations, each base station being divided into a plurality of base station groups, each base station group including at least one base station among the plurality of base stations,to receive a first signal from a first base station among the plurality of base stations when the radio communication terminal is controlled by the first base station, the first signal indicating awake periods during which the radio communication terminal is awake for receiving from the first base station in an intermittent reception period that includes the awake periods and sleep periods during which the radio communication terminal sleeps,to receive at least one second signal within the awake periods from at least one other base station other than the first base station among the plurality of base stations, each second signal being transmitted from each base station and identifying one of the plurality of base station groups that includes the base station,to select a second base station being to control the radio communication terminal instead of the first base station based on the received at least one second signal, among the at least one other base station of which base station group is same as a base station group of the first base station, with higher priority than the at least one other base station of which base station group is different from a base station group of the first base station.
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Accused Products
Abstract
A radio communication terminal including: a processor configured to communicate, when a reception quality of a radio signal of the base station is lower than a threshold value and when a first group identification information identifying a base station group to which the base station belongs is not received from the base station, to each of neighbor base stations sequentially in an intermittent reception period, to specify a specified neighbor base station of the neighbor base stations, the specified neighbor base station belonging to the base station group, based on whether a second group identification information is received from each of the neighbor base stations or not and based on the first group identification and the second group identification are same or not, to select the specified base station preferentially to which the terminal is to hand over, among the neighbor base stations.
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Citations
14 Claims
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1. A radio communication terminal comprising:
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a memory; and a processor coupled to the memory and configured to be controlled by one of a plurality of base stations, each base station being divided into a plurality of base station groups, each base station group including at least one base station among the plurality of base stations, to receive a first signal from a first base station among the plurality of base stations when the radio communication terminal is controlled by the first base station, the first signal indicating awake periods during which the radio communication terminal is awake for receiving from the first base station in an intermittent reception period that includes the awake periods and sleep periods during which the radio communication terminal sleeps, to receive at least one second signal within the awake periods from at least one other base station other than the first base station among the plurality of base stations, each second signal being transmitted from each base station and identifying one of the plurality of base station groups that includes the base station, to select a second base station being to control the radio communication terminal instead of the first base station based on the received at least one second signal, among the at least one other base station of which base station group is same as a base station group of the first base station, with higher priority than the at least one other base station of which base station group is different from a base station group of the first base station. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A radio communication terminal communication method comprising:
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being controlled by one of a plurality of base stations, each base station being divided into a plurality of base station groups, each base station group including at least one base station among the plurality of base stations, receiving a first signal from a first base station among the plurality of base stations when the radio communication terminal is controlled by the first base station, the first signal indicating awake periods during which the radio communication terminal is awake for receiving from the first base station in an intermittent reception period that includes the awake periods and sleep periods during which the radio communication terminal sleeps, receiving at least one second signal within the awake periods from at least one other base station other than the first base station among the plurality of base stations, each second signal being transmitted from each base station and identifying one of the plurality of base station groups that includes the base station, selecting a second base station being to control the radio communication terminal instead of the first base station based on the received at least one second signal, among the at least one other base station of which base station group is same as a base station group of the first base station, with higher priority than the at least one other base station of which base station group is different from a base station group of the first base station. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification