Mobile communication system and mobile communication method

摘要

An anchor radio base station 310A comprises: an interface 315 A that notifies a non-anchor radio base station 310B of bit precision of an uplink signal before decoding, the uplink signal before decoding being to be transmitted through a backhaul network; and a control unit 316A that performs selective synthesis of the uplink signal before decoding received from the non-anchor radio base station 310B, and the uplink signal before decoding received from UE 10. The non-anchor radio base station 310B comprises: an interface 315B that transmits the uplink signal before decoding to the anchor radio base station 310A according to the bit precision notified by the anchor radio base station 310A.

主权项

1. A mobile communication system, in which a plurality of radio base stations receive, in cooperation with one another, uplink signals transmitted from a radio terminal, wherein
the plurality of radio base stations comprise: one anchor radio base station; and a non-anchor radio base station other than the anchor radio base station, the anchor radio base station comprises:
a notification unit that notifies a non-anchor radio base station receiving an uplink signal having received quality which satisfies predetermined quality, of necessity to transmit the uplink signal before decoding through a backhaul network; anda control unit that performs selective synthesis of the uplink signal before decoding received from the non-anchor radio base station, and the uplink signal before decoding received from the radio terminal, and the non-anchor radio base station comprises:
a transmission unit that transmits the uplink signal before decoding to the anchor radio base station when the necessity to transmit the uplink signal before decoding is notified by the anchor radio base station.