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US 2001/0044306 A1Published application
Mobile communication system using multiplex zone configuration and operation method of the same
AssigneeNEC Corporation
InventorsFumihisa Shimono, Takashi Yonamine
Life of this patent
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Abstract
A mobile communication system is composed of a plurality of base stations, a mobile terminal, and a base station controller. The base station controller selects a communication base station from among the plurality of base stations based on a velocity of the mobile terminal. The mobile terminal establishes a channel with the communication base station.
Claims22
A mobile communication system comprising:
- a plurality of base stations;
- a mobile terminal;
- and
- a base station controller, wherein said base station controller selects a communication base station from among said plurality of base stations based on a velocity of said mobile terminal, and said mobile terminal establishes a channel with said communication base station.
1 more element
A mobile communication system comprising:
- a large zone base station having a first communication area;
- a small zone base station having a second communication area, wherein said second communication area is smaller than said first communication area, and overlaps said first communication area;
- a base station controller;
- and
- a mobile station, wherein said base station controller selects one of said large zone base station and said small zone base station as a communication base station based on a velocity of said mobile station, and said mobile terminal establishes a channel to said communication base station.
2 more elements
A mobile communication system comprising:
- a large zone base station having a first communication area;
- a small zone base station having a second communication area, wherein said second communication area is smaller than said first communication area, and overlaps said first communication area;
- a base station controller;
- and
- a mobile station, wherein said mobile terminal establishes a first channel with a first communication base station of said large zone base station and said small zone base station, and
- wherein said base station controller selects one of said large zone base station and said small zone base station as a second communication base station based on a bit error rate and a signal to noise ratio of said first channel, and
- wherein said mobile terminal establishes a second channel to said second communication base station.
4 more elements
A mobile communication system comprising:
- a large zone base station having a first communication area;
- a small zone base station having a second communication area, wherein said second communication area is smaller than said first communication area, and overlaps said first communication area;
- a base station controller;
- and
- a mobile station, wherein said base station controller selects one of said large zone base station and said small zone base station as a communication base station based on traffic of said small zone base station, and
- wherein said mobile terminal establishes a channel to said communication base station.
3 more elements
A base station controller used in a mobile communication system, comprising:
- a receiving unit receiving a signal indicative of a velocity of a mobile terminal;
- and
- a hand-over directing unit selecting a communication base station from among a plurality of base stations based on said velocity to direct a hand-over to said communication base station.
An operating method of a mobile communication system comprising:
- detecting a velocity of a mobile terminal;
- selecting one of a plurality of base stations as a communication base station;
- establishing a channel between said mobile terminal and said communication base station.
An operating method of a mobile communication system comprising:
- detecting a velocity of a mobile terminal;
- selecting one of a large zone base station and a small zone base station as a communication base station, wherein said large zone base station has a first communication area, and said small zone base station has a second communication area, and said second communication area is smaller than said first communication area, and overlaps said first communication area,
- establishing a channel between said mobile terminal and said communication base station.
A velocity detecting unit detecting a velocity of a mobile station comprising:
- a bit error detecting unit detecting a bit error rate of a channel between said mobile station and a base station;
- a signal to noise ratio detecting unit detecting a signal to noise ratio of said channel;
- and
- a calculation unit calculating a velocity of said mobile station based on said bit error rate and said signal to noise ratio.
1 more element
A method of detecting a velocity of a mobile station comprising:
- detecting a bit error rate of a channel between said mobile station and a base station;
- detecting a signal to noise ratio of said channel;
- and
- calculating a velocity of said mobile station based on said bit error rate and said signal to noise ratio.
1 more element
Dependencies are inferred from the claim text.