METHOD OF CONTROLLING ANTENNA OF MOVING OBJECT AND SYSTEM USING THE SAME

• US 20090021434A1
• Filed: 10/22/2007
• Published: 01/22/2009
• Est. Priority Date: 07/18/2007
• Status: Active Grant

• Current Assignee: General Electric Company, Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Choi, Hyun Ho, Jang, Kyung Hun, Hwang, Hyo Sun, Kim, Young Soo, Hyon, Tae In, Lee, In Sun
• Granted Patent: US 8,385,870 B2
• Time in Patent Office: Days
• US Class Current: 343/703
• CPC Class Codes: H01Q 1/3208 characterised by the application wherein the antenna is used
• CPC Class Codes: H01Q 21/00 Antenna arrays or systems arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system H01Q3/00

Abstract

A system of controlling an antenna of a moving object is provided. The system includes: a plurality of communication antennas established in the moving object; an environmental information generation unit generating environmental information which includes strength information of a received signal and moving speed information of the moving object; an antenna use determination unit determining, with respect to the plurality of communication antennas, a number of antennas for each use based on the environmental information; and an antenna assigning unit assigning the plurality of communication antennas for each use according to the determined number of antennas.

Claims

1. A system of controlling an antenna of a moving object, comprising:

a plurality of communication antennas established in the moving object;

an environmental information generation unit generating environmental information which includes strength information of a received signal and moving speed information of the moving object;

an antenna use determination unit determining, with respect to the plurality of communication antennas, a number of antennas for each use based on the environmental information; and

an antenna assigning unit assigning the plurality of communication antennas for each use according to the determined number of antennas.

2. The system of claim 1, wherein the antenna use determination unit comprises:

a sensing antenna determination unit determining a number of sensing antennas which detects an available frequency band from the plurality of communication antennas based on the strength information; and

a data antenna determination unit determining a number of data antennas which transmits/receives data from the plurality of communication antennas by considering the moving speed information,

wherein the antenna assigning unit assigns the plurality of communication antennas according to the number of sensing antennas and the number of data antennas.

3. The system of claim 2, wherein the sensing antenna determination unit increases the number of sensing antennas as strength of the received signal decreases.

4. The system of claim 2, wherein the data antenna determination unit increases the number of data antennas as speed of the moving object increases.

5. The system of claim 2, wherein the data antenna transmits/receives the data using a multiple-input multiple-output (MIMO) system.

6. The system of claim 2, wherein the antenna use determination unit further comprises a control antenna determination unit determining a number of control antennas which transmits/receives control information to control a data channel from the plurality of communication antennas, based on the environmental information,

wherein the antenna assigning unit assigning the plurality of communication antennas according to the number of control antennas.

7. The system of claim 6, wherein the control antennas transmit/receive the control information using the MIMO system.

8. The system of claim 2, wherein the antenna usage determination unit further comprises a moving object communication antenna determination unit which determines a number of moving object communication antennas for communication between moving objects from the plurality of communication antennas based on the environmental information,

wherein the antenna assigning unit assigns the plurality of communication antennas according to the number of moving object communication antennas.

9. The system of claim 2, wherein the antenna assigning unit assigns the plurality of communication antennas according to a predetermined priority order when a sum of the number of sensing antennas and the number of data antennas exceeds a number of the communication antennas.

10. The system of claim 1, wherein the environmental information further comprises quality of service (QoS) information.

11. A method of controlling an antenna of a moving object, comprising:

generating environmental information which includes strength information of a received signal and moving speed information of the moving object, in which a plurality of communication antennas are established;

determining, with respect to the plurality of the communication antennas, a number of communication antennas for each use based on the environmental information; and

assigning the plurality of communication antennas to each use according to the determined number of antennas.

12. The method of claim 11, wherein the determining of the number of communication antennas for each use comprises:

determining a number of sensing antennas which detects an available frequency band from the plurality of communication antennas based on the strength information; and

determining a number of data antennas which transmits/receives data from the plurality of communication antennas according to the moving speed information,

wherein the assigning of the plurality of communication antennas assigns the plurality of communication antennas according to the number of sensing antennas and the number of data antennas.

13. The method of claim 12, wherein the determining of the number of sensing antennas increases the number of sensing antennas as strength of the received signal decreases.

14. The method of claim 12, wherein the determining of the number of data antennas increases the number of data antennas as speed of the moving object increases.

15. The method of claim 12, wherein the data antennas transmit/receive the data using a multiple-input multiple-output (MIMO) system.

16. The method of claim 12, wherein the determining of the number of communication antennas for each use further comprises:

determining, based on the environmental information, a number of control antennas which transmits/receives control information to control a data channel from the plurality of communication antennas,

wherein the assigning of the plurality of communication antennas assigns the plurality of communication antennas according to the number of control antennas.

17. The method of claim 16, wherein the control antennas transmit/receive the control information using the MIMO system.

18. The method of claim 12, wherein the determining of the number of communication antennas for each use further comprises:

determining a number of moving object communication antennas for communication between moving objects from the plurality of communication antennas based on the environmental information,

wherein the assigning of the communication antennas assigns the plurality of communication antennas according to the number of moving object communication antennas.

19. The method of claim 12, wherein the assigning of the communication antennas assigns the plurality of communication antennas according to a predetermined priority order when a sum of the number of sensing antennas and the number of data antennas exceeds a number of communication antennas.

20. A computer-readable recording medium having stored thereon instructions for implementing the method of claim 11.