US5960349A
Expired / Lapsed
US
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Enhanced cellular layout for CDMA networks having six-sectored cells
Assignee: BlackBerry Ltd
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Filing: 1997-05-20
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Granted: 1999-09-28
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Expires: 2017-05-20
Abstract
Abstract An enhanced cellular layout for cellular networks having six-sectored cells is disclosed. In one embodiment, the cellular layout is implemented by rotating directional antennas located at each cell site of a triangular cellular layout of a six-sectored CDMA network clockwise or counterclockwise by approximately 10.893 DEG or rotating directional antennas located at each cell site of a parallelogram cellular layout of a six-sectored CDMA network clockwise or counterclockwise by approximately 19.107 DEG .
Inventors
- 👤 Ashvin Chheda
- 👤 Farhad Bassirat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:47
CPC Classifications
H; H04; H04W; H04W16/00; H04W16/02; H04W16/12; H04W16/24
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
99 words
A code division multiple access ("CDMA") network comprising a plurality of six-sectored cells each having at least one directional antenna located at a cell site thereof, wherein for each of said six-sectored cells, each said at least one directional antenna thereof is oriented such that a line bisecting a corresponding one of said sectors of said six-sectored cell forms an angle β with a line between said cell site of said six-sectored cell and said cell site of an adjacent one of said six-sectored cells, wherein said angle β is selected from a range of angles consisting of 19.107°±3°.
Claim 2
Dependent Claim
99 words
A code division multiple access ("CDMA") network comprising a plurality of six-sectored cells each having at least one directional antenna located at a cell site thereof, wherein for each of said six-sectored cells, each said at least one directional antenna thereof is oriented such that a line bisecting a corresponding one of said sectors of said six-sectored cell forms an angle β with a line between said cell site of said six-sectored cell and said cell site of an adjacent one of said six-sectored cells, wherein said angle β is selected from a range of angles consisting of 19.107°±3°.
Claim 3
Dependent Claim
16 words
The CDMA network of claim 1 wherein said cell site comprises at least six directional antennas.
Claim 4
Dependent Claim
60 words
A code division multiple access ("CDMA") network comprising a plurality of six-sectored cells each having at least one directional antenna, said CDMA network created by rotating each said directional antenna an amount β with reference to a corresponding antenna oriented for creating a parallelogram CDMA network cellular layout, wherein β is selected from a range of angles consisting of 19.107°±3°.
Claim 5
Dependent Claim
60 words
A code division multiple access ("CDMA") network comprising a plurality of six-sectored cells each having at least one directional antenna, said CDMA network created by rotating each said directional antenna an amount β with reference to a corresponding antenna oriented for creating a parallelogram CDMA network cellular layout, wherein β is selected from a range of angles consisting of 19.107°±3°.
Claim 6
Dependent Claim
15 words
The CDMA network of claim 3 wherein said rotating is performed in a clockwise direction.
Claim 7
Dependent Claim
15 words
The CDMA network of claim 3 wherein said rotating is performed in a counterclockwise direction.
Claim 8
Dependent Claim
19 words
The CDMA network of claim 3 wherein said at least one directional antenna comprises at least six directional antennas.
Claim 9
Dependent Claim
60 words
A code division multiple access ("CDMA") network comprising a plurality of six-sectored cells each having at least one directional antenna, said CDMA network created by rotating each said directional antenna an amount β with reference to a corresponding antenna oriented for creating a triangular CDMA network cellular layout, wherein β is selected from a range of angles consisting of 10.8930°±3°.
Claim 10
Dependent Claim
60 words
A code division multiple access ("CDMA") network comprising a plurality of six-sectored cells each having at least one directional antenna, said CDMA network created by rotating each said directional antenna an amount β with reference to a corresponding antenna oriented for creating a triangular CDMA network cellular layout, wherein β is selected from a range of angles consisting of 10.8930°±3°.
Claim 11
Dependent Claim
15 words
The CDMA network of claim 7 wherein said rotating is performed in a clockwise direction.
Claim 12
Dependent Claim
15 words
The CDMA network of claim 7 wherein said rotating is performed in a counterclockwise direction.
Claim 13
Dependent Claim
19 words
The CDMA network of claim 7 wherein said at least one directional antenna comprises at least six directional antennas.
Claim 14
Independent Claim
78 words
A method of improving performance of a cellular communication network comprising at least one cell: providing at least six directional antennas at each cell site; orienting each said directional antenna such that a cellular layout of said cellular communication network is a parallelogram cellular layout; and rotating each said directional antenna at each cell site in a first direction a first predetermined amount; wherein said first predetermined amount is selected from a range of angles consisting of 19.1070°±3°.
Claim 15
Independent Claim
78 words
A method of improving performance of a cellular communication network comprising at least one cell: providing at least six directional antennas at each cell site; orienting each said directional antenna such that a cellular layout of said cellular communication network is a parallelogram cellular layout; and rotating each said directional antenna at each cell site in a first direction a first predetermined amount; wherein said first predetermined amount is selected from a range of angles consisting of 19.1070°±3°.
Claim 16
Dependent Claim
11 words
The method of claim 11 wherein said first direction is clockwise.
Claim 17
Dependent Claim
11 words
The method of claim 11 wherein said first direction is counterclockwise.
Claim 18
Dependent Claim
18 words
The method of claim 11 wherein said cellular communication network is a code division multiple access ("CDMA") network.
Claim 19
Dependent Claim
15 words
The method of claim 11 wherein each said at least one cell comprises six sectors.
Claim 20
Independent Claim
78 words
A method of improving performance of a cellular communication network comprising at least one cell: providing at least six directional antennas at each cell site; orienting each said directional antenna such that a cellular layout of said cellular communication network is a triangular cellular layout; and rotating each said directional antenna at each cell site in a first direction a first predetermined amount; wherein said first predetermined amount is selected from a range of angles consisting of 10.893°±3°.
Claim 21
Independent Claim
78 words
A method of improving performance of a cellular communication network comprising at least one cell: providing at least six directional antennas at each cell site; orienting each said directional antenna such that a cellular layout of said cellular communication network is a triangular cellular layout; and rotating each said directional antenna at each cell site in a first direction a first predetermined amount; wherein said first predetermined amount is selected from a range of angles consisting of 10.893°±3°.
Claim 22
Dependent Claim
11 words
The method of claim 16 wherein said first direction is clockwise.
Claim 23
Dependent Claim
11 words
The method of claim 16 wherein said first direction is counterclockwise.
Claim 24
Dependent Claim
18 words
The method of claim 16 wherein said cellular communication network is a code division multiple access ("CDMA") network.
Claim 25
Dependent Claim
15 words
The method of claim 16 wherein each said at least one cell comprises six sectors.
References Cited (Backward Citations)
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