- Patent Title: Radio communication system, radio base station, and communication control method that can reduce an inter-base station interference between downlink control channels
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Application No.: US15663281Application Date: 2017-07-28
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Publication No.: US10080221B2Publication Date: 2018-09-18
- Inventor: Kenta Okino
- Applicant: KYOCERA CORPORATION
- Applicant Address: JP Kyoto
- Assignee: KYOCERA Corporation
- Current Assignee: KYOCERA Corporation
- Current Assignee Address: JP Kyoto
- Agency: Studebaker & Brackett PC
- Priority: JP2010-087686 20100406; JP2010-138802 20100617; JP2010-181165 20100812; JP2010-225266 20101004
- Main IPC: H04W4/00
- IPC: H04W4/00 ; H04W72/04 ; H04W24/00 ; H04W52/24 ; H04W88/08 ; H04W92/20 ; H04W72/00
Abstract:
A picocell base station (PeNB) uses a downlink control channel, the frequency band of which overlaps with the frequency band of the downlink control channel used by a macrocell base station (MeNB), to transmit downlink control information for controlling radio communication with a radio terminal (PUE) connected to the picocell base station (PeNB). The picocell base station (PeNB) comprises an X2 interface communication unit (140) which uses inter-base station communication to transmit to the macrocell base station (MeNB) usage control information for controlling the control channel usage that is the usage of a radio resource used as the downlink control channel by the macrocell base station (MeNB).
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