Mobile communication system, mobile communication method, mobile terminal and base station
First Claim
1. A mobile communication system for carrying out packet transmission/reception between a mobile terminal and a radio base station, comprising:
- a power saving unit for executing a power saving mode to reduce a power consumption at the mobile terminal;
a packet classification judgement unit for judging a packet type of a packet;
a sleep timer setting unit for setting a sleep timer value indicating a time duration since a last packet is transmitted/received until the power saving mode starts, according to a judgement result of the packet classification judgement unit;
at least one sleep timer for measuring an elapsed time since the packet is transmitted/received; and
a sleep execution unit for activating the sleep timer after the packet is transmitted/received, and controlling the power saving unit to execute the power saving mode at a timing at which the elapsed time measured by the at least one sleep timer exceeded the sleep timer value.
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Accused Products
Abstract
In a mobile communication system for carrying out packet transmission/reception between a mobile terminal having a power saving mode to reduce a power consumption and a radio base station, a packet type of a packet is judged, and a sleep timer value indicating a time duration since a last packet is transmitted/received until the power saving mode starts is set according to a judgement result. Then, at least one sleep timer for measuring an elapsed time since the packet is transmitted/received is activated, and the mobile terminal is controlled to execute the power saving mode at a timing at which the elapsed time measured by the at least one sleep timer exceeded the sleep timer value.
85 Citations
20 Claims
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1. A mobile communication system for carrying out packet transmission/reception between a mobile terminal and a radio base station, comprising:
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a power saving unit for executing a power saving mode to reduce a power consumption at the mobile terminal;
a packet classification judgement unit for judging a packet type of a packet;
a sleep timer setting unit for setting a sleep timer value indicating a time duration since a last packet is transmitted/received until the power saving mode starts, according to a judgement result of the packet classification judgement unit;
at least one sleep timer for measuring an elapsed time since the packet is transmitted/received; and
a sleep execution unit for activating the sleep timer after the packet is transmitted/received, and controlling the power saving unit to execute the power saving mode at a timing at which the elapsed time measured by the at least one sleep timer exceeded the sleep timer value. - View Dependent Claims (2, 3, 4, 5)
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6. A mobile communication method for carrying out packet transmission/reception between a mobile terminal having a power saving mode to reduce a power consumption and a radio base station, comprising the steps of:
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(a) judging a packet type of a packet;
(b) setting a sleep timer value indicating a time duration since a last packet is transmitted/received until the power saving mode starts, according to a judgement result of the step (a);
(c) activating at least one sleep timer for measuring an elapsed time since the packet is transmitted/received; and
(d) controlling the mobile terminal to execute the power saving mode at a timing at which the elapsed time measured by the at least one sleep timer exceeded the sleep timer value. - View Dependent Claims (7, 8, 9, 10)
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11. A mobile terminal device for carrying out packet transmission/reception with a radio base station, comprising:
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a power saving unit for executing a power saving mode to reduce a power consumption at the mobile terminal device;
a packet classification judgement unit for judging a packet type of a packet;
a sleep timer setting unit for setting a sleep timer value indicating a time duration since a last packet is transmitted/received until the power saving mode starts, according to a judgement result of the packet classification judgement unit;
at least one sleep timer for measuring an elapsed time since the packet is transmitted/received; and
a sleep execution unit for activating the sleep timer after the packet is transmitted/received, and controlling the power saving unit to execute the power saving mode at a timing at which the elapsed time measured by the at least one sleep timer exceeded the sleep timer value. - View Dependent Claims (12, 13, 14, 15)
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16. A radio base station device for carrying out packet transmission/reception with a mobile terminal having a power saving mode to reduce a power consumption, comprising:
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a packet classification judgement unit for judging a packet type of a packet;
a sleep timer setting unit for setting a sleep timer value indicating a time duration since a last packet is transmitted/received until the power saving mode starts, according to a judgement result of the packet classification judgement unit;
at least one sleep timer for measuring an elapsed time since the packet is transmitted/received; and
a sleep permission signal transmission unit for activating the sleep timer after the packet is transmitted/received, and transmitting a sleep permission signal for controlling the mobile terminal to execute the power saving mode at a timing at which the elapsed time measured by the at least one sleep timer exceeded the sleep timer value. - View Dependent Claims (17, 18, 19, 20)
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Specification