Patent US6438376B1 successfully refreshed from Google Patents.
US6438376B1
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Wireless communications management and control system using mobile station position and movement information
Assignee: Apple Inc
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Filing: 1999-05-11
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Granted: 2002-08-20
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Expires: 2019-05-11
Abstract
Abstract The present invention incorporates information representing the location and movement of a mobile station in a wireless telecommunications network to manage and control hand-offs, reduce the risk of falsing, prioritize channel assignments and control the power level of channels.
Inventors
- 👤 Stephen B. Elliott
- 👤 Srinivas Eswara
- 👤 Jill R. Baumann
- 👤 Daniel Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:06
CPC Classifications
H; H04; H04W; H04W36/00; H04W36/24; H04W36/32; H04W36/322; H04W36/324
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
154 words
A method of controlling a hand-off of an active call from a serving cell of a wireless telecommunications system comprising: providing information representing the identity of a sector of a cell in which a mobile station conducting the call is located; providing information representing the identity of channels used by one or more cells adjacent the sector; eliminating from a mobile assisted hand-off list utilized by the mobile station the identity of channels not available in the one or more cells adjacent the sector in which the mobile station is located; determining the direction of travel of the mobile station; determining if the power level of a transmission from a first sector received by the mobile station conflicts with the direction of travel of the mobile station; and upon determining that the power level of the mobile station conflicts with the direction of travel, eliminating from a mobile assisted hand-off list the first sector.
Claim 2
Independent Claim
154 words
A method of controlling a hand-off of an active call from a serving cell of a wireless telecommunications system comprising: providing information representing the identity of a sector of a cell in which a mobile station conducting the call is located; providing information representing the identity of channels used by one or more cells adjacent the sector; eliminating from a mobile assisted hand-off list utilized by the mobile station the identity of channels not available in the one or more cells adjacent the sector in which the mobile station is located; determining the direction of travel of the mobile station; determining if the power level of a transmission from a first sector received by the mobile station conflicts with the direction of travel of the mobile station; and upon determining that the power level of the mobile station conflicts with the direction of travel, eliminating from a mobile assisted hand-off list the first sector.
Claim 3
Dependent Claim
35 words
The method of claim 1 , wherein the step of providing information representing the identity of the sector of a cell in which the mobile station is operating includes information obtained from a GPS server.
Claim 4
Dependent Claim
53 words
The method of claim 1 , wherein the step of providing information representing the identity of a sector of a cell includes information extracted from a table identifying the one or more cells adjacent the sector and the identity of channels used by each of the one or more cells adjacent the sector.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-08-19 | 2006-02-18 | 2006-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-08-19 | 2010-02-18 | 2010-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-08-19 | 2014-02-18 | 2014-08-20 | $7700.00 | Window Closed / Lapsed |