DEVICE, METHOD AND SYSTEM FOR ALIGNING AN ANTENNA

• US 20100167675A1
• Filed: 06/29/2009
• Published: 07/01/2010
• Est. Priority Date: 12/30/2008
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Zhao, Guixue
• Granted Patent: US 8,559,886 B2
• Time in Patent Office: Days
• US Class Current: 455/226.200
• CPC Class Codes: H01Q 1/1257 using the received signal strength

Abstract

The present invention relates to a communication transmission field, and particularly provides a device, a method, and a system for aligning an antenna. The method includes steps as follows. An input signal is received, and a receiver signal strength indication (RSSI) value is output according to a strength of the input signal. The RSSI value is received, and a practically received power value corresponding to the input signal is acquired by looking up a corresponding table between the RSSI and power. An antenna rotation signal and an alignment indication signal are output. The antenna is adjusted according to the antenna rotation signal so as to change a receiving angle of the antenna. Then, it is displayed that the antenna is aligned according to the alignment indication signal. In the present invention, the man-made operation errors are reduced, thus the network quality is effectively ensured.

Claims

1. A device for aligning an antenna, comprising a receiving unit, a practically received power value acquiring unit, an alignment judging unit, an antenna adjusting unit, and an alignment indicating unit, wherein

the receiving unit is adapted to receive an input signal, and output a receiver signal strength indication (RSSI) value according to a strength of the input signal;

the practically received power value acquiring unit is adapted to receive the RSSI value, and acquire a practically received power value corresponding to the input signal by looking up a corresponding table between RSSI and power;

the alignment judging unit is adapted to compare the practically received power value with a theoretically received power threshold value, output an antenna rotation signal to the antenna adjusting unit when the practically received power value is smaller than the theoretically received power threshold value, and output an alignment indication signal to the alignment indicating unit when the practically received power value is greater than or equal to the theoretically received power threshold value;

the antenna adjusting unit is adapted to adjust the antenna according to the antenna rotation signal so as to change a receiving angle of the antenna; and

the alignment indicating unit is adapted to display that the antenna is aligned according to the alignment indication signal.

2. The device according to claim 1, wherein

the alignment judging unit further comprises an extreme value determining module adapted to use the practically received power value as an extreme value when the practically received power value is greater than or equal to the theoretically received power threshold value and output a first extreme value signal to the antenna adjusting unit;

and

the antenna adjusting unit is further adapted to fix a position of the antenna according to the first extreme value signal.

3. The device according to claim 1, wherein

the alignment judging unit further comprises an extreme value determining module adapted to use a maximum value of the practically received power during an adjustment process as an extreme value and output a second extreme value signal to the antenna adjusting unit;

and

the antenna adjusting unit is further adapted to fix a position of the antenna according to the second extreme value signal.

4. The device according to claim 1, wherein

the receiving angle of the antenna changes within the range between −

90 degree and +90 degree with an antenna stand as a rotation axis.

5. The device according to claim 1, wherein

the practically received power value acquiring unit further comprises a first storage module adapted to save the corresponding table between RSSI and power;

and the alignment judging unit further comprises a second storage module adapted to save the theoretically received power threshold value.

6. The device according to claim 3, wherein

the extreme value determining module is further adapted to output the second extreme value signal to the receiving unit;

and

the receiving unit is further adapted to send an alignment output signal for adjusting an alignment position of a peer end antenna to the antenna according to the second extreme value signal.

7. The device according to claim 1, wherein

the alignment indicating unit is particularly an interface adapted to provide an indication in high electrical level, low electrical level or square wave form, an indicator displayed interface, or a buzzer displayed interface.

8. A method for aligning an antenna, comprising:

receiving an input signal, and outputting a receiver signal strength indication (RSSI) value according to a strength of the input signal;

receiving the RSSI value, and acquiring a practically received power value corresponding to the input signal by looking up a corresponding table between RSSI and power;

comparing the practically received power value with a theoretically received power threshold value, outputting an antenna rotation signal when the practically received power value is smaller than the theoretically received power threshold value, and outputting an alignment indication signal when the practically received power value is greater than or equal to the theoretically received power threshold value;

adjusting the antenna according to the antenna rotation signal so as to change a receiving angle of the antenna; and

displaying that the antenna is aligned according to the alignment indication signal.

9. The method according to claim 8, wherein

the outputting the alignment indication signal when the practically received power value is greater than or equal to the theoretically received power threshold value comprises:

using the practically received power value as an extreme value when the practically received power value is greater than or equal to the theoretically received power threshold value, and outputting a first extreme value signal; and

the adjusting the antenna according to the antenna rotation signal so as to change the receiving angle of the antenna comprises;

fixing a position of the antenna according to the first extreme value signal.

10. The method according to claim 8, wherein

the outputting the alignment indication signal when the practically received power value is greater than or equal to the theoretically received power threshold value comprises:

using a maximum value of the practically received power during an adjustment process as an extreme value, and outputting a second extreme value signal to an antenna adjusting unit; and

the adjusting the antenna according to the antenna rotation signal so as to change the receiving angle of the antenna comprises;

fixing a position of the antenna according to the second extreme value signal.

11. The method according to claim 10, further comprising:

sending an alignment output signal for adjusting an alignment position of a peer end antenna to the antenna according to the second extreme value signal.

12. A system for aligning an antenna, comprising a first alignment device, a second alignment device, a first antenna, and a second antenna, wherein

the first alignment device is adapted to send an alignment output signal to the second antenna through the first antenna according to an extreme value signal;

and

the second alignment device is adapted to receive the alignment output signal, and adjust and align the second antenna through an antenna adjusting unit in the second alignment device according to a strength of the alignment output signal.