United States Patent [w]
Bartholomew
[54] ANTENNA SYSTEM AND METHOD
[76] Inventor: Darin E. Bartholomew, 1411 S.
Algonquin Dr., Schaumburg, 111. 60193
[21] Appl. No.: 689,560
[22] Filed: Aug. 12, 1996
Related U.S. Application Data
[63] Continuation of Ser. No. 258,256, Jun. 10,1994, abandoned.
[51] Int. CI.6 H01Q 3/22; H04B 7/26
[52] U.S. CI 342/372; 455/419; 455/440;
455/456
[58] Field of Search 342/359, 354,
342/372; 455/419, 440, 456, 560, 562,
92
[56] References Cited
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mi iiiiiii in mi mi mil mil in mi mi
[ii] Patent Number: 5,818,385 [45] Date of Patent: Oct. 6, 1998
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Primary Examiner—Gregory C. Issing
Attorney, Agent, or Firm—Darin E. Bartholomew
[57] ABSTRACT
The antenna system and method for dynamically controlling radiation patterns provides an assortment ol radiation patterns to increase the performance ol communication systems, such as trunking communication systems and cellular communication systems. One embodiment ol the antenna system permits a user to manually select a desired radiation pattern Irom the assortment ol radiation patterns. For example, the user may manually select a desired radiation pattern via a graphical user interlace ol a general purpose computer, or via a conventional telephone. Another embodiment ol the antenna system and method tailors radiation patterns in response to lactors such as the locations ol mobile units, the channel assignments ol mobile units, and the transmissions ol particular mobile units.
36 Claims, 28 Drawing Sheets
MOBILE UNIT REQUESTS CHANNEL ASSIGNMENT VIA UPLINK RADIO FREQUENCY (I.E. CONTROL CHANNEL). MOBILE UNIT TRANSMITS IDENTIFIER AND MOBILE GEOGRAPHIC COORDINATES.
UPLINK RECEIVER RECEIVES IDENTIFIER AND MOBILE GEOGRAPHIC
COORDINATES. UPLINK RECEIVER SENDS IDENTIFIER AND MOBILE
GEOGRAPHIC COORDINATES, EXTERNAL INPUT DATA, TO
ARRAY ANTENNA CONTROLLER.
BASE STATION CONTROLLER DETERMINES CHANNEL ASSIGNMENT
AND TRANSMITS CHANNEL ASSIGNMENT VIA DOWNLINK
RADIO FREQUENCY (I E CONTROL CHANNEL).
DOWNLINK RECEIVER RECEIVES CHANNEL ASSIGNMENT AND SENDS
CHANNEL ASSIGNMENT, EXTERNAL INPUT DATA, TO ARRAY
ANTENNA CONTROLLER
IF ARRAY ANTENNA CONTROLLER AND ARRAY ANTENNA
ARE ASSOCIATED WITH THE ASSIGNED CHANNEL, THEN THE
ARRAY ANTENNA CONTROLLER SENDS PHASE DELAY CONTROL
CODES TO THE ARRAY ANTENNA TO GENERATE
APPROPRIATE RADIATION PATTERN IN ACCORDANCE WITH
MOBILE GEOGRAPHIC COORDINATES.
ARRAY ANTENNA CONTROLLER RESPONDS TO ANY FURTHER
EXTERNAL INPUT DATA, RESULTING FROM, FOR EXAMPLE
MOBILE UNIT MOVEMENT OR CHANNEL REASSIGNMENT.
