Mobile communication system, mobile communication method, and radio base station
AssigneeKYOCERA Corporation
InventorChiharu Yamazaki
Life of this patent
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Abstract
A mobile communication system of an embodiment is a system in which a plurality of radio base stations receive an uplink signal transmitted from a radio terminal coordinated with one another. Each of the plurality of radio base stations comprises: an acquisition unit that acquires a path loss between the radio terminal and the radio base station; and an interface that notifies the path loss acquired by the acquisition unit to another radio base station. At least one the radio base station of the plurality of radio base stations includes a notification unit that notifies the radio terminal of the path loss used in the transmission power control of the uplink signal, in accordance with the path losses between each of the plurality of radio base stations and the radio terminal.
Claims13
A mobile communication system in which a plurality of radio base stations receive an uplink signal transmitted from a radio terminal coordinated with one another, wherein
- each of the plurality of radio base stations comprises:
- an acquisition unit that acquires a path loss between the radio terminal and the radio base station;
- and
- an interface that notifies the path loss acquired by the acquisition unit to another radio base station;
- and wherein
- at least one radio base station of the plurality of radio base stations includes a notification unit that notifies the radio terminal of the path loss used in transmission power control of the uplink signal, in accordance with path losses between each of the plurality of radio base stations and the radio terminal.
A mobile communication system in which a plurality of radio base stations receive an uplink signal transmitted from a radio terminal coordinated with one another, wherein
- each of the plurality of radio base stations comprises:
- an acquisition unit that acquires a path loss between the radio terminal and a corresponding radio base station;
- and
- an interface that notifies the path loss acquired by the acquisition unit to another radio base station;
- and wherein
- at least one radio base station of the plurality of radio base stations includes a notification unit that notifies the radio terminal of information indicating the radio base station that should be referenced in transmission power control of the uplink signal, in accordance with path losses between each of the plurality of radio base stations and the radio terminal.
A mobile communication method for receiving an uplink signal transmitted from a radio terminal at a plurality of radio base stations coordinated with one another, comprising:
- a step A of acquiring, by each of the plurality of radio base stations, a path loss between the radio terminal and a corresponding radio base station;
- a step B of notifying, by each of the plurality of radio base stations, to another radio base station, the path loss acquired in the step A;
- and
- a step C of notifying, by at least one radio base station of the plurality of radio base stations, to the radio terminal, the path loss used in transmission power control of the uplink signal, in accordance with path losses between each of the plurality of radio base stations and the radio terminal.
A mobile communication method for receiving an uplink signal transmitted from a radio terminal at a plurality of radio base stations coordinated with one another, comprising:
- a step A of acquiring, by each of the plurality of radio base stations, a path loss between the radio terminal and a corresponding radio base station;
- a step B of notifying, by each of the plurality of radio base stations, to another radio base station, the path loss acquired in the step A;
- and
- a step C of notifying, by at least one radio base station of the plurality of radio base stations, to the radio terminal, the information indicating the radio base station that should be referenced in transmission power control of the uplink signal, in accordance with path losses between each of the plurality of radio base stations and the radio terminal.
A radio base station used in a mobile communication system in which a plurality of radio base stations receive an uplink signal transmitted from a radio terminal coordinated with one another, comprising:
- an acquisition unit that acquires a path loss between the radio terminal and the radio base station;
- an interface that acquires, from another radio base station other than the radio base station, of from among the plurality of radio base stations, a path loss between the other radio base station and the radio terminal;
- and
- a notification unit that notifies the radio terminal of the path loss used in transmission power control of the uplink signal, in accordance with path losses between each of the plurality of radio base stations and the radio terminal.
A radio base station used in a mobile communication system in which a plurality of radio base stations receive an uplink signal transmitted from a radio terminal coordinated with one another, comprising:
- an acquisition unit that acquires a path loss between the radio terminal and the radio base station;
- an interface that acquires, from another radio base station other than the radio base station, of from among the plurality of radio base stations, a path loss between the other radio base station and the radio terminal;
- and
- a notification unit that notifies the radio terminal of the information indicating the radio base station that should be referenced in transmission power control of the uplink signal, in accordance with path losses between each of the plurality of radio base stations and the radio terminal.
Dependencies are inferred from the claim text.