IP Library Granted Patent US 8,843,134
Granted Patent B2
US 8,843,134 · App. 13/305,394 · Granted Sep 23, 2014

Wireless communications handoff method and system employing such

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Quick Facts
Patent No.
US 8,843,134
App. No.
13/305,394
Granted
Sep 23, 2014
Kind
B2
Abstract

A method for reducing a delay in a wireless communications system resulting from a handoff while mitigating a risk of premature termination of wireless communications, the method includes comparing data indicative of actual use of the wireless communications systems to at least one predetermined criteria. If the comparing determines a sector pairing in the wireless communications system to be statistically significant for purposes of recommending at least one search window setting, at least one value related with a distance associated with the sector pairing may be used to automatically determine a corresponding signal delay. If the corresponding signal delay exceeds a prior determined signal delay, a recommended search window setting may be determined using the corresponding signal delay.

Claims (19)

1. A method for reducing a delay in a wireless communications system resulting from a handoff while mitigating a risk of premature termination of wireless communications, said method comprising:

identifying a plurality of communications sectors, each of said sectors having a geographic relationship with respect to each other of said sectors;

selecting at least two of said sectors based on a number of handoffs between said at least two sectors;

determining a wireless communications timing delay for said at least two sectors;

estimating a signal delay for said at least two sectors; and,

determining at least one search window associated with said at least two sectors using said determined timing delay and estimated signal delay.

2. The method of claim 1 , wherein said determining at least one search window comprises summing said determined timing delay and estimated signal delay.

3. The method of claim 2 , wherein said determining at least one search window further comprises comparing said summed timing and signal delays to predetermined criteria.

4. The method of claim 2 , further comprising reducing said summed delays.

5. The method of claim 4 , wherein said reducing is dependent upon at least one reduction factor.

6. The method of claim 5 , wherein said reduction factor is at least partially based upon a geographic topography.

7. The method of claim 5 , wherein said reduction factor is at least partially based upon a layout of at least some of said plurality of sectors.

8. The method of claim 1 , wherein said wireless communications system comprises multiple access communications network.

9. The method of claim 8 , wherein said multiple access communications network comprises a CDMA communications network.

10. The method of claim 8 , wherein said multiple access communications network comprises a WCDMA communications network.

11. The method of claim 1 , wherein said wireless communications system comprises a TDMA communications network.

12. The method of claim 1 , wherein said multiple access communications network comprises a FDMA communications network.

13. The method of claim 1 , wherein said wireless communications system comprises a GSM communications network.

14. The method of claim 1 , wherein said wireless communications system comprises an AMPS communications network.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 2, 2014
From: CRICKET COMMUNICATIONS, INC.
To: AT&T MOBILITY II LLC
Reel/Frame 033227/0459 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 21, 2014
From: MERSON, ANDREW CHARLES; ODEDINA, SAMUEL BANDELE; LIDDELL, PHILIP WAYNE
To: LEAP WIRELESS INTERNATIONAL, INC.
Reel/Frame 033153/0504 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 21, 2014
From: LEAP WIRELESS INTERNATIONAL, INC.
To: CRICKET COMMUNICATIONS, INC.
Reel/Frame 033153/0508 →