Method and apparatus for forming array antenna beam of mobile terminal
First Claim
1. A method for forming an array antenna beam of a mobile terminal, comprising:
- comparing direction information of a first beam set toward a maximum signal receiving direction with direction information of a second beam set using position information of a base station and a mobile terminal; and
selecting one of the first beam direction information or second beam direction information based on a result of the comparison, wherein the first beam direction information and the second beam direction information are different, wherein the mobile terminal includes an Omni directional antenna in addition to an array antenna, the Omni directional antenna, located at a predetermined location on the mobile terminal relative to the array antenna, and wherein the first beam direction information is determined by;
determining a transmit/receive characteristic of a beam of the Omni directional antenna, comparing the transmit/receive characteristics of the array antenna and Omni directional antenna beams; and
setting the first beam directional information based on a result of the comparison of the transmit/receive characteristics of the array antenna and Omni directional antenna beams.
1 Assignment
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Accused Products
Abstract
A method for forming an array antenna beam of a mobile terminal periodically compares transmit/receive characteristics of a three-dimensional adaptive beam with transmit/receive characteristics of an omnidirectional beam periodically. A beam direction having better transmit/receive characteristics is then selected. By horizontally rotating an array antenna beam toward up or down at an angle of 360° degrees, a direction having a maximum signal receiving value is searched, and a three-dimensional adaptive beam is set in the searched direction. By using position information of a mobile terminal together with the detected information, a beam direction is set. And, by comparing beam direction information set toward a maximum signal receiving direction with beam direction information set on the basis of position information of a base station/mobile terminal, an optimum beam is selected and formed, thereby improving transmit/receive characteristics of the mobile terminal.
47 Citations
25 Claims
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1. A method for forming an array antenna beam of a mobile terminal, comprising:
- comparing direction information of a first beam set toward a maximum signal receiving direction with direction information of a second beam set using position information of a base station and a mobile terminal; and
selecting one of the first beam direction information or second beam direction information based on a result of the comparison, wherein the first beam direction information and the second beam direction information are different, wherein the mobile terminal includes an Omni directional antenna in addition to an array antenna, the Omni directional antenna, located at a predetermined location on the mobile terminal relative to the array antenna, and wherein the first beam direction information is determined by;
determining a transmit/receive characteristic of a beam of the Omni directional antenna, comparing the transmit/receive characteristics of the array antenna and Omni directional antenna beams; and
setting the first beam directional information based on a result of the comparison of the transmit/receive characteristics of the array antenna and Omni directional antenna beams. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
- comparing direction information of a first beam set toward a maximum signal receiving direction with direction information of a second beam set using position information of a base station and a mobile terminal; and
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18. An apparatus for forming an array antenna beam of a mobile terminal, comprising:
- an array antenna;
a modem for setting a first beam pattern toward a maximum three-dimensional signal receiving direction, setting a second beam pattern based on position information of a base station and a mobile terminal, and selecting one of the first beam pattern or the second beam pattern by comparing beam direction information set based on the position information with beam direction information set in the maximum signal receiving direction;
an array antenna beam controller/switch which forms the selected beam pattern set in the modem by adjusting phase of the array antenna; and
a RF unit for processing a RF (radio frequency) signal received through the array antenna beam controller/switch, wherein the beam direction information set in the maximum signal receiving direction indicates direction information of a beam having better transmit/receive characteristics between transmit/receive characteristics of a three-dimensional adaptive beam and transmit/receive characteristics of an Omni directional beam. - View Dependent Claims (19, 20, 21, 22, 23, 24)
- an array antenna;
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25. A method for forming an array antenna beam of a mobile terminal, comprising:
comparing direction information of a first beam set toward a maximum signal receiving direction with direction information of a second beam set using position information of a base station and a mobile terminal; and
selecting one of the first beam direction information or second beam direction information based on a result of the comparison, wherein the first beam direction information and the second beam direction information are different, wherein the first beam direction information set toward the maximum signal receiving direction indicates direction information of a beam having better transmit/receive characteristics between transmit/receive characteristics of a three-dimensional adaptive beam and transmit/receive characteristics of an Omni directional beam.
Specification