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US5805993A
Expired / Lapsed
US
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Cell level change control device for cellular mobile radio networks with more than one level of cell
Assignee: Alcatel CIT SA
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Filing: 1996-10-11
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Granted: 1998-09-08
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Expires: 2016-10-11
Abstract
Abstract A cell level change control device for cellular mobile radio networks with more than one level of cells includes means for comparing the value of a parameter representative of the speed of a mobile station with a threshold in order to decide if it is necessary to command a cell level change when the mobile station is served by a lower level cell contained in a higher level cell or when a mobile station is served by a higher level cell and it is determined that the lower level cell contained in that higher level cell constitutes the best cell. The device determines the load of the higher level cell and varies the threshold in accordance with the load.
Inventors
- 👤 Corinne Cherpantier
- 👤 Laurent Julia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:12
CPC Classifications
H; H04; H04W; H04W36/00; H04W36/04
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
120 words
A cell level change control device for cellular mobile radio networks with more than one level of cells, comprising: means for comparing the value of a parameter representative of the speed of a mobile station with a threshold for deciding if it is necessary to execute a command to change cell level when the mobile station is served by a lower level cell contained in a higher level cell or, if the mobile station is served by a higher level cell having a lower level cell, when it is determined that the lower level cell is the best cell; means for determining the load of said higher level cell; and means for varying said threshold in accordance with said load.
Claim 2
Dependent Claim
120 words
A cell level change control device for cellular mobile radio networks with more than one level of cells, comprising: means for comparing the value of a parameter representative of the speed of a mobile station with a threshold for deciding if it is necessary to execute a command to change cell level when the mobile station is served by a lower level cell contained in a higher level cell or, if the mobile station is served by a higher level cell having a lower level cell, when it is determined that the lower level cell is the best cell; means for determining the load of said higher level cell; and means for varying said threshold in accordance with said load.
Claim 3
Dependent Claim
44 words
The device claimed in claim 1 wherein in the case of a cell level change from the higher level to the lower level said means for varying said threshold in accordance with said load include means for lowering said threshold when said load increases.
Claim 4
Dependent Claim
44 words
The device claimed in claim 1 wherein in the case of a cell level change from the higher level to the lower level said means for varying said threshold in accordance with said load include means for raising said threshold when said load decreases.
Claim 5
Dependent Claim
44 words
The device claimed in claim 1 wherein in the case of a cell level change from the lower level to the higher level said means for varying said threshold in accordance with said load include means for lowering said threshold when said load decreases.
Claim 6
Dependent Claim
44 words
The device claimed in claim 1 wherein in the case of a cell level change from the lower level to the higher level said means for varying said threshold in accordance with said load include means for raising said threshold when said load increases.
Claim 7
Dependent Claim
118 words
A cell level change control device for cellular mobile radio networks with more than one level of cells, comprising: means for comparing the value of a parameter representative of the speed of a mobile station with a threshold for deciding if it is necessary to execute a command to change cell level when the mobile station is served by a higher level cell containing a lower level cell or, if the mobile station is served by a lower level cell in a higher level cell it is determined that the higher level cell is the best cell; means for determining the load of said lower level cell; and means for varying said threshold in accordance with said load.
Claim 8
Dependent Claim
118 words
A cell level change control device for cellular mobile radio networks with more than one level of cells, comprising: means for comparing the value of a parameter representative of the speed of a mobile station with a threshold for deciding if it is necessary to execute a command to change cell level when the mobile station is served by a higher level cell containing a lower level cell or, if the mobile station is served by a lower level cell in a higher level cell it is determined that the higher level cell is the best cell; means for determining the load of said lower level cell; and means for varying said threshold in accordance with said load.
Claim 9
Dependent Claim
44 words
The device claimed in claim 6 wherein in the case of a cell level change from the higher level to the lower level said means for varying said threshold in accordance with said load include means for raising said threshold when said load increases.
Claim 10
Dependent Claim
44 words
The device claimed in claim 6 wherein in the case of a cell level change from the higher level to the lower level said means for varying said threshold in accordance with said load include means for lowering said threshold when said load decreases.
Claim 11
Dependent Claim
44 words
The device claimed in claim 6 wherein in the case of a cell level change from the lower level to the higher level said means for varying said threshold in accordance with said load include means for raising said threshold when said load decreases.
Claim 12
Dependent Claim
44 words
The device claimed in claim 6 wherein in the case of a cell level change from the lower level to the higher level said means for varying said threshold in accordance with said load include means for lowering said threshold when said load increases.
References Cited (Backward Citations)
US4670899A
Cited
JPH03196722A
Cited
US5241685A
Cited
US5175867A
Cited
EP0504122A2
Cited
EP0526436A1
Cited
WO1993012589A1
Cited
US5345499A
Cited
US5396645A
Cited
US5513380A
Cited
US5548806A
Cited
US5530910A
Cited
US5513379A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-09-07 | 2002-03-09 | 2002-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-09-07 | 2006-03-09 | 2006-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-09-07 | 2010-03-09 | 2010-09-08 | $7700.00 | Window Closed / Lapsed |