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 and second beam direction information based on a predetermined variation degree of the first beam direction information when the first beam direction information and the second beam direction information are different.
1 Assignment
0 Petitions
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.
42 Citations
26 Claims
-
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 and second beam direction information based on a predetermined variation degree of the first beam direction information when the first beam direction information and the second beam direction information are different. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
-
20. An apparatus for forming an array antenna beam of a mobile terminal, comprising:
-
an array antenna;
a modem for setting a beam pattern toward a maximum three-dimensional signal receiving direction, setting a beam pattern based on position information of a base station and a mobile terminal, and selecting a 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 a 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. - View Dependent Claims (21, 22, 23, 24, 25, 26)
-
Specification