US 2010/0248663 A1 · ANTENNA INSTALLATION METHOD IN A MULTIPLE INPUT MULTIPLE OUTPUT COMMUNICATION METHOD

Abstract

A communication system includes a first communication apparatus and a second communication apparatus. The second communication apparatus transmits different signals from first and second antennas, and first and second antennas of the first communication apparatus receive the signals, respectively. An angle formed by a first line connecting the first communication apparatus and the first antenna of the second communication apparatus and a second line connecting the first communication apparatus and the second antenna of the second communication apparatus is set to be equal to or smaller than 180 degrees. A distance between the first and second antennas of the first communication apparatus is set to a specified value, which is determined by a signal wavelength and the angle formed by the first line and the second line.

Claims20

Dependent claims

An antenna installation method in a radio communication system that is configured and arranged to transmit different signals from a plurality of antennas of a second communication apparatus using the same frequency band and receives the signals by a plurality of antennas of a first communication apparatus, the antennas of said first communication apparatus including at least first and second antennas, the antennas of said second communication apparatus including at least first and second antennas, the antenna installation method comprising:

setting an angle formed by a first line connecting said first communication apparatus and said first antenna of said second communication apparatus and a second line connecting said first communication apparatus and said second antenna of said second communication apparatus to be equal to or smaller than 180 degrees;
and
setting a first distance between said first communication apparatus and said first antenna of said second communication apparatus and a second distance between said first communication apparatus and said second antenna of said second communication apparatus to be specified values determined by a signal wavelength and said angle formed by said first line and said second line, respectively.

A communication apparatus configured to communicate with another communication apparatus using a communication method in which different signals are transmitted from a plurality of antennas of said communication apparatus and the signals are received by a plurality of antennas of said another communication apparatus, said communication apparatus comprising:

a first antenna;
and
a second antenna arranged in a specified positional relationship with said first antenna,
wherein an angle formed by a first line connecting said communication apparatus and a first antenna of said another communication apparatus and a second line connecting said communication apparatus and a second antenna of said another communication apparatus is set to be equal to or smaller than 180 degrees;
and
a distance between said first and second antennas of said communication apparatus is set to a specified value, which is determined by a signal wavelength and the angle formed by said first line and said second line.

3 more elements

A communication system comprising:

a first communication apparatus having at least a first antenna and a second antenna that are arranged in a specified positional relationship;
and
a second communication apparatus having at least a first antenna and a second antenna that are arranged in a specified positional relationship,
wherein said second communication apparatus transmits different signals from said first and second antennas of said second communication apparatus, and said first and second antennas of said first communication apparatus receive the signals, respectively, and
wherein an angle formed by a first line connecting said first communication apparatus and said first antenna of said second communication apparatus and a second line connecting said first communication apparatus and said second antenna of said second communication apparatus is set to be equal to or smaller than 180 degrees;
and
a distance between said first and second antennas of said first communication apparatus is set to a specified value, which is determined by a signal wavelength and the angle formed by said first line and said second line.

4 more elements

Dependencies are inferred from the claim text.

Antenna installation method in a multiple input multiple output communication method

Life of this patent

Antenna installation method in a multiple input multiple output communication method

Life of this patent

Abstract

Claims20