Title:
A base transceiver station, a radio communications system, and a wireless communication method
Document Type and Number:
Japanese Patent JP6053305
Kind Code:
B2
Abstract:
The present invention is designed to make effective use of radio resources in VSEC to output a plurality of beams of varying tilt angles for sectorization in vertical directions. A radio communication method for a radio base station that outputs a plurality of beams of varying tilt angles and forms a plurality of cells that are sectorized vertically, and a user terminal that establishes wireless connection with the radio base station, provides the steps in which the radio base station acquires information about the communication capacity of each of the plurality of cells, and controls the vertical plane beam width and/or transmission power of each cell and sets the coverage area of each cell so that differences in communication capacity between the plurality of cells are reduced.
Inventors:
Yuki Inoue
Satoshi Nagata
Takehiro Nakamura
Satoshi Nagata
Takehiro Nakamura
Application Number:
JP2012081085A
Publication Date:
December 27, 2016
Filing Date:
March 30, 2012
Export Citation:
Assignee:
Ntt docomo, Inc.
International Classes:
H04W16/28; H04B7/06; H04B7/10; H04J99/00; H04W16/32; H04W52/34; H04W88/08
Domestic Patent References:
| JP2012054736A | ||||
| JP2008219338A | ||||
| JP2009033717A |
Foreign References:
| WO2011029497A1 |
Other References:
ZTE,Considerations of system coexistence simulation for AAS[online], 3GPP TSG-RAN WG4♯61 R4-115575,インターネット,2011年11月 5日,1-5 pages
Attorney, Agent or Firm:
Hiroyoshi Aoki
Amada Masayuki
Yoshimasa Okada
Tsutomu Mizoguchi
Amada Masayuki
Yoshimasa Okada
Tsutomu Mizoguchi