IP Library Granted Patent US 8,229,506
Granted Patent B2
US 8,229,506 · App. 11/619,815 · Granted Jul 24, 2012

Enhanced connection acquisition using an array antenna

Assignee: AT&T Intellectual Property I, L.P.
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Quick Facts
Patent No.
US 8,229,506
App. No.
11/619,815
Granted
Jul 24, 2012
Kind
B2
Abstract

An array antenna is utilized to enhance the adaptive acquisition capability of a communication connection with one or more wireless subscribers. Subscribers who are located outside the omnidirectional range of the array antenna are acquired by using adaptive beamforming techniques to create an acquisition beam dedicated to acquiring new connections with wireless subscribers. The acquisition beam may sweep through the coverage of the array antenna seeking subscribers who lie beyond the omni range of the array antenna, but fall within the acquisition range using adaptive beamforming.

Claims (64)

1. A computer-implemented method for enhancing acquisition of a connection to a wireless subscriber, the computer-implemented method comprising:

allocating a first beam of an array antenna for use as a first acquisition beam, while an omnidirectional gain is also provided by the array antenna, the omnidirectional gain extending an omnidirectional range associated with the array antenna and the first acquisition beam extending beyond the omnidirectional range of the array antenna;

defining a coverage area for the first acquisition beam;

directing the first acquisition beam to move within the coverage area, wherein the coverage area begins at a first position and ends at a second position and wherein the first acquisition beam sweeps the coverage area from the first position to the second position for detection of any service request signals;

determining whether a service request signal is received from the wireless subscriber at the array antenna via the first acquisition beam as the first acquisition beam moves through the coverage area, the wireless subscriber located within a range of the first acquisition beam but beyond the omnidirectional range of the array antenna;

provisioning the connection to the wireless subscriber in response to determining that the service request signal was received;

determining that provisioning the connection to the wireless subscriber requires a second beam for providing an ongoing connection; and

reallocating the first acquisition beam to serve as the second beam for providing the ongoing connection.

2. The computer-implemented method of claim 1 , further comprising receiving an identifier of the wireless subscriber as a part of the service request signal.

3. The computer-implemented method of claim 1 , wherein provisioning the connection to the wireless subscriber comprises:

determining a location of the wireless subscriber based on the service request signal; and

utilizing the location of the wireless subscriber for the second beam for enabling ongoing communication with the wireless subscriber via the second beam.

4. The computer-implemented method of claim 1 , further comprising:

allocating a third beam of the array antenna for use as a second acquisition beam, the second acquisition beam extending beyond the omnidirectional range of the array antenna;

defining a first portion of the coverage area for the first acquisition beam and a second portion of the coverage area for the second acquisition beam;

directing the first acquisition beam to move within the first portion of the coverage area and the second acquisition beam to move within the second portion of the coverage area; and

determining whether additional service request signals are received from additional wireless subscribers at the array antenna via the first acquisition beam and the second acquisition beam.

5. The computer-implemented method of claim 4 , further comprising provisioning a connection to one of the additional wireless subscribers in response to determining that one of the additional service request signals was received.

6. The computer-implemented method of claim 5 , further comprising:

determining that provisioning the connection to the one of the additional wireless subscribers will require a fourth beam for providing an ongoing connection; and

reallocating the second acquisition beam to serve as the fourth beam for providing the ongoing connection.

7. The computer-implemented method of claim 1 , wherein determining whether a service request signal is received from the wireless subscriber at the array antenna comprises utilizing a WiMAX communication standard to communicate with the wireless subscriber.

8. A system for enhancing acquisition of a connection to a wireless subscriber, the system comprising:

a processor associated with a computer, the processor configured to execute computer-readable instructions; and

memory having stored thereon the computer-readable instructions for enhancing acquisition of the connection to the wireless subscriber, the computer-readable instructions, when executed on the processor associated with the computer, causing the computer to:

allocate a first beam of an array antenna for use as a first acquisition beam, while an omnidirectional gain is also provided by the array antenna, the omnidirectional gain extending an omnidirectional range associated with the array antenna and the first acquisition beam extending beyond the omnidirectional range of the array antenna,

define a coverage area for the first acquisition beam,

direct the first acquisition beam to move within the coverage area, wherein the coverage area begins at a first position and ends at a second position and wherein the first acquisition beam sweeps the coverage area from the first position to the second position for detection of any service request signals,

determine whether a service request signal is received at the array antenna from the wireless subscriber via the first acquisition beam as the first acquisition beam moves through the coverage area, the wireless subscriber located within a range of the first acquisition beam but beyond the omnidirectional range of the array antenna,

provision the connection to the wireless subscriber in response to determining that the service request signal was received,

determine that provisioning the connection to the wireless subscriber requires a second beam for providing an ongoing connection, and

reallocate the first acquisition beam to serve as the second beam for providing the ongoing connection.

9. The system of claim 8 , wherein provisioning the connection to the wireless subscriber comprises:

determining a location of the wireless subscriber utilizing the service request signal;

utilizing the location of the wireless subscriber for the second beam for enabling ongoing communication with the wireless subscriber via the second beam.

10. The system of claim 8 , wherein the computer-readable instructions further cause the computer to:

allocate a third beam of the array antenna for use as a second acquisition beam, the second acquisition beam extending beyond the omnidirectional range of the array antenna;

define a first portion of the coverage area for the first acquisition beam and a second portion of the coverage area for the second acquisition beam;

direct the first acquisition beam to move within the first portion of the coverage area and the second acquisition beam to move within the second portion of the coverage area; and

determine whether additional service request signals are received from additional wireless subscribers at the array antenna via the first acquisition beam and the second acquisition beam.

11. The system of claim 10 , wherein the computer-readable instructions further cause the computer to provision a connection to one of the additional wireless subscribers in response to determining that one of the additional service request signals was received.

12. The system of claim 11 , wherein the computer-readable instructions further cause the computer to:

determine that provisioning the connection to the one of the additional wireless subscribers will require a fourth beam for providing an ongoing connection; and

reallocate the second acquisition beam to serve as the fourth beam for providing the ongoing connection.

13. A computer-readable medium storing computer-executable instructions which, when executed by a computer, cause the computer to:

allocate a first beam of an array antenna for use as a first acquisition beam, while an omnidirectional gain is also provided by the array antenna, the omnidirectional gain extending an omnidirectional range associated with the array antenna and the first acquisition beam extending beyond the omnidirectional range of the array antenna;

define a coverage area for the first acquisition beam;

direct the first acquisition beam to move within the coverage area, wherein the coverage area begins at a first position and ends at a second position and wherein the first acquisition beam sweeps the coverage area from the first position to the second position for detection of any service request signals;

determine whether a service request signal is received at the array antenna from a wireless subscriber via the first acquisition beam as the first acquisition beam moves through the coverage area, the wireless subscriber located within a range of the first acquisition beam but beyond the omnidirectional range of the array antenna;

provision a connection to the wireless subscriber in response to determining that the service request signal was received;

determine that provisioning the connection to the wireless subscriber requires a second beam for providing an ongoing connection; and

reallocate the first acquisition beam to serve as the second beam for providing the ongoing connection.

14. The computer-readable medium of claim 13 , wherein the instructions further cause the computer to:

determine a location of the wireless subscriber utilizing the service request signal;

utilize the location of the wireless subscriber for the second beam for enabling ongoing communication with the wireless subscriber via the second beam.

15. The computer-readable medium of claim 13 , wherein the instructions further cause the computer to:

allocate a third beam of the array antenna for use as a second acquisition beam, the second acquisition beam extending beyond the omnidirectional range of the array antenna;

define a first portion of the coverage area for the first acquisition beam and a second portion of the coverage area for the second acquisition beam;

direct the first acquisition beam to move within the first portion of the coverage area and the second acquisition beam to move within the second portion of the coverage area; and

determine whether additional service request signals are received from additional wireless subscribers at the array antenna via the first acquisition beam and the second acquisition beam.

16. The computer-readable medium of claim 15 , wherein the instructions further cause the computer to provision a connection to one of the additional wireless subscribers in response to determining that one of the additional service request signals was received.

17. The computer-readable medium of claim 16 , wherein the instructions further cause the computer to:

determine that provisioning the connection to the one of the additional wireless subscribers will require a fourth beam for providing an ongoing connection; and

reallocate the second acquisition beam to serve as the fourth beam for providing the ongoing connection.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 4, 2007
From: DUET, DOUGLAS; LOU, YUANG
To: BELLSOUTH INTELLECTUAL PROPERTY CORPORATION
Reel/Frame 018708/0608 →
Continuity (1)
Related Publication 20080194204A1 · Aug 14, 2008