US5329576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wireless communication zone management system
Assignee: Mitel Networks Corp
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Filing: 1992-04-29
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Granted: 1994-07-12
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Expires: 2012-04-29
Abstract
Abstract A wireless communication system comprising a plurality of antennae, the antennae being arranged in a grid pattern over a communication region, wireless portable terminals located within the communication region for emitting and/or receiving electromagnetic signals via the antennae, apparatus for determining the position of at least one of the terminals within the communication region relative to the grid pattern.
Inventors
- 👤 Martin R. Handforth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:36
CPC Classifications
H; H04; H04W; H04W64/00; H04B; H04B7/00; H04B7/24; H04B7/26
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
401 words
A wireless communication system comprising: (a) a plurality of antennae, the antenna being arranged in a grid pattern over a communication region, each antenna being a leaky coaxial cable, whereby a grid pattern of leaky coaxial cables is formed, (b) wireless portable terminals located within the communication region for emitting and/or receiving electromagnetic signals via said antennae, (c) means for locating the position of at least one of said wireless portable terminals within the communication region relative to said grid pattern, comprising: (i) crossovers within the grid pattern of orthogonal ones of said cables defining the centers of micro-cells for defining the position of said at least one of said terminals, (ii) at least one first base station including at least one corresponding transceiver connected to one end of corresponding one or plural cables which are parallel in one direction, and at least one second base station including at least one corresponding transceiver each connected to one end of corresponding one of plural cables which are parallel in a second direction. (iii) a transmission line connected to each of the base stations; (iv) processing means connected to the transmission line, comprising means for storing a predetermined identity of each of said portable terminals associated with a micro-cell, means for detecting the identity of a portable terminal and for detecting the identity of first and second base stations connected to leaky cables which are closest to said portable terminal, for comparing the detected identity of the first and second base stations with said stored predetermined identity and for thereby determining the position of said portable terminal. (d) each portable terminal being comprised of means for transmitting an identification signal. (e) each base station being comprised of means for generating an identification signal, and including means for transmitting its own identification signal with the identification signal of said portable terminal upon reception thereof, to said processor means, (f) said portable terminal being comprised of means for transceiving communication signals, means for transmitting identification and supervisory signals, and means for receiving supervisory and/or control signals, (g) each of the base stations including means for transmitting signals via one or more related leaky cables to said plural portable terminals in a time shared digital packet mode modulated on a particular frequency signal, each of the base stations transmitting at a particular frequency which is different from a particular frequency of its closest neighboring base station.
Claim 2
Dependent Claim
401 words
A wireless communication system comprising: (a) a plurality of antennae, the antenna being arranged in a grid pattern over a communication region, each antenna being a leaky coaxial cable, whereby a grid pattern of leaky coaxial cables is formed, (b) wireless portable terminals located within the communication region for emitting and/or receiving electromagnetic signals via said antennae, (c) means for locating the position of at least one of said wireless portable terminals within the communication region relative to said grid pattern, comprising: (i) crossovers within the grid pattern of orthogonal ones of said cables defining the centers of micro-cells for defining the position of said at least one of said terminals, (ii) at least one first base station including at least one corresponding transceiver connected to one end of corresponding one or plural cables which are parallel in one direction, and at least one second base station including at least one corresponding transceiver each connected to one end of corresponding one of plural cables which are parallel in a second direction. (iii) a transmission line connected to each of the base stations; (iv) processing means connected to the transmission line, comprising means for storing a predetermined identity of each of said portable terminals associated with a micro-cell, means for detecting the identity of a portable terminal and for detecting the identity of first and second base stations connected to leaky cables which are closest to said portable terminal, for comparing the detected identity of the first and second base stations with said stored predetermined identity and for thereby determining the position of said portable terminal. (d) each portable terminal being comprised of means for transmitting an identification signal. (e) each base station being comprised of means for generating an identification signal, and including means for transmitting its own identification signal with the identification signal of said portable terminal upon reception thereof, to said processor means, (f) said portable terminal being comprised of means for transceiving communication signals, means for transmitting identification and supervisory signals, and means for receiving supervisory and/or control signals, (g) each of the base stations including means for transmitting signals via one or more related leaky cables to said plural portable terminals in a time shared digital packet mode modulated on a particular frequency signal, each of the base stations transmitting at a particular frequency which is different from a particular frequency of its closest neighboring base station.
Claim 3
Dependent Claim
21 words
A system as defined in claim 1 in which said one direction and said second direction are orthogonal to each other.
Claim 4
Dependent Claim
29 words
A system as defined in claim 1, in which said one terminal is comprised of a becon transmitter for periodically transmitting a single comprised of its said identification signal.
Claim 5
Dependent Claim
55 words
A system as defined in claim 1, in which said one terminal is comprised of a paging receiver, including means for receiving a signal directed to said one terminal identified by an unique identification signal via at least one base station and an associated leaky cable which is in a micro-cell containing said paging receiver.
Claim 6
Dependent Claim
15 words
A system as defined in claim 1 in which the communication signals are voice signals.
Claim 7
Dependent Claim
31 words
A system as defined in claim 1 in which each of the base stations includes means for transmitting signals via a related leaky cable to plural portable terminals at different frequencies.
Claim 8
Dependent Claim
378 words
A wireless communication system comprising: (a) a plurality of antennae, the antenna being arranged in a grid pattern over a communication region, each antenna being a leaky coaxial cable, whereby a grid pattern of leaky coaxial cables is formed, (b) wireless portable terminals located within the communication region for emitting and/or receiving electromagnetic signals via said antennae, (c) means for locating the position of at least one of said wireless portable terminals within the communication region relative to said grid pattern, comprising: (i) crossovers within the grid pattern of orthogonal ones of said cables defining the centers of micro-cells for defining the position of said at least one of said terminals, (ii) at least one first base station including at least one corresponding transceiver connected to one end of corresponding one or plural cables which are parallel in one direction, and at least one second base station including at least one corresponding transceiver each connected to one end of corresponding one of plural cables which are parallel in a second direction. (iii) a transmission line connected to each of the base stations; (iv) processing means connected to the transmission line, comprising means for storing a predetermined identity of each of said portable terminals associated with a micro-cell, means for detecting the identity of a portable terminal and for detecting the identity of first and second base stations connected to leaky cables which are closest to said portable terminal, for comparing the detected identity of the first and second base stations with said stored predetermined identity and for thereby determining the position of said portable terminal. (d) each portable terminal being comprised of means for transmitting an identification signal. (e) each base station being comprised of means for generating an identification signal, and including means for transmitting its own identification signal with the identification signal of said portable terminal upon reception thereof, to said processor means, (f) said portable terminal being comprised of means for transceiving communication signals, means for transmitting identification and supervisory signals, and means for receiving supervisory and/or control signals, (g) each of the base stations including means for transmitting signals via a related leaky cable to portable terminals in a time shared, spread spectrum mode, each of the portable terminals utilizing a different spreading code.
Claim 9
Dependent Claim
378 words
A wireless communication system comprising: (a) a plurality of antennae, the antenna being arranged in a grid pattern over a communication region, each antenna being a leaky coaxial cable, whereby a grid pattern of leaky coaxial cables is formed, (b) wireless portable terminals located within the communication region for emitting and/or receiving electromagnetic signals via said antennae, (c) means for locating the position of at least one of said wireless portable terminals within the communication region relative to said grid pattern, comprising: (i) crossovers within the grid pattern of orthogonal ones of said cables defining the centers of micro-cells for defining the position of said at least one of said terminals, (ii) at least one first base station including at least one corresponding transceiver connected to one end of corresponding one or plural cables which are parallel in one direction, and at least one second base station including at least one corresponding transceiver each connected to one end of corresponding one of plural cables which are parallel in a second direction. (iii) a transmission line connected to each of the base stations; (iv) processing means connected to the transmission line, comprising means for storing a predetermined identity of each of said portable terminals associated with a micro-cell, means for detecting the identity of a portable terminal and for detecting the identity of first and second base stations connected to leaky cables which are closest to said portable terminal, for comparing the detected identity of the first and second base stations with said stored predetermined identity and for thereby determining the position of said portable terminal. (d) each portable terminal being comprised of means for transmitting an identification signal. (e) each base station being comprised of means for generating an identification signal, and including means for transmitting its own identification signal with the identification signal of said portable terminal upon reception thereof, to said processor means, (f) said portable terminal being comprised of means for transceiving communication signals, means for transmitting identification and supervisory signals, and means for receiving supervisory and/or control signals, (g) each of the base stations including means for transmitting signals via a related leaky cable to portable terminals in a time shared, spread spectrum mode, each of the portable terminals utilizing a different spreading code.
Claim 10
Dependent Claim
21 words
A system as defined in claim 7 in which said one direction and said second direction are orthogonal to each other.
Claim 11
Dependent Claim
29 words
A system as defined in claim 7, in which said one terminal is comprised of a beacon transmitter for periodically transmitting a signal comprised of its said identification signal.
Claim 12
Dependent Claim
55 words
A system as defined in claim 7, in which said one terminal is comprised of a paging receiver, including means for receiving a signal directed to said one terminal identified by an unique identification signal via at least one base station and an associated leaky cable which is in a micro-cell containing said paging receiver.
Claim 13
Dependent Claim
15 words
A system as defined in claim 7 in which the communication signals are voice signals.
Claim 14
Dependent Claim
31 words
A system as defined in claim 7 in which each of the base stations includes means for transmitting signals via a related leaky cable to plural portable terminals at different frequencies.
Claim 15
Dependent Claim
154 words
A wireless communication system comprising: (a) a plurality of antennae, the antennae being arranged in a grid pattern over a communication region, and being comprised of at least one elongated coaxial cable located over a communication region on each floor of a multi-story building, each cable defining a mini-cell; (b) wireless portable terminals located within the communication region for emitting and/or receiving electromagnetic signals via said antennae, (c) means for locating the position of at least one of said terminals within the communication region relative to said grid pattern including plural first base stations including transceivers each connected to one end of said cables which are parallel in one direction, and plural second base stations including transceivers each connected to one end of said cables which are parallel in a second direction, and further including a transmission line connected to each of the base stations, the transmission line being disposed vertically up the building.
Claim 16
Dependent Claim
154 words
A wireless communication system comprising: (a) a plurality of antennae, the antennae being arranged in a grid pattern over a communication region, and being comprised of at least one elongated coaxial cable located over a communication region on each floor of a multi-story building, each cable defining a mini-cell; (b) wireless portable terminals located within the communication region for emitting and/or receiving electromagnetic signals via said antennae, (c) means for locating the position of at least one of said terminals within the communication region relative to said grid pattern including plural first base stations including transceivers each connected to one end of said cables which are parallel in one direction, and plural second base stations including transceivers each connected to one end of said cables which are parallel in a second direction, and further including a transmission line connected to each of the base stations, the transmission line being disposed vertically up the building.
Claim 17
Dependent Claim
100 words
A system as defined in claim 13, in which said means for locating further includes processing means connected tot he transmission line, the processing means comprising means for storing a predetermined identity of each of said portable terminals associated with a micro-cell, means for detecting the identity of a portable terminal and for detecting the identity of first and second base stations connected to leaky cables which are closest to said portable terminal, for comparing the detected identity of the first and second base stations with said stored predetermined identity and for thereby determining the position of said one terminal.
Claim 18
Dependent Claim
62 words
A system as defined in claim 14 in which each portable terminal is comprised of means for transmitting an identification signal, in which each base station is comprised of means for generating an identification signal, and means in each base station for transmitting its own identification signal with the identification signal of said one terminal upon reception thereof, to said processor means.
Claim 19
Dependent Claim
175 words
A wireless communication system comprising: (a) a plurality of antennae, the antennae being arranged in a grid pattern over a communication region and being comprised of at least one elongated coaxial cable located over a communication region on each floor of a multi-story building, each cable defining a mini-cell; (b) wireless portable terminals located within the communication region for emitting and/or receiving electromagnetic signals via said antennae; (c) means for locating the position of at least one of said terminals within the communication region relative to said grid pattern including processing means connected to the transmission line, the processing means comprising means for storing a predetermined identity of each of said portable terminals associated with a microcell, means for detecting the identity of a portable terminal and for detecting the identity of first and second base stations connected to leaky cables which are closest to said portable terminal, for comparing the detected identity of the first and second base stations with said stored predetermined identity and for thereby determining the position of said one terminal.
Claim 20
Dependent Claim
175 words
A wireless communication system comprising: (a) a plurality of antennae, the antennae being arranged in a grid pattern over a communication region and being comprised of at least one elongated coaxial cable located over a communication region on each floor of a multi-story building, each cable defining a mini-cell; (b) wireless portable terminals located within the communication region for emitting and/or receiving electromagnetic signals via said antennae; (c) means for locating the position of at least one of said terminals within the communication region relative to said grid pattern including processing means connected to the transmission line, the processing means comprising means for storing a predetermined identity of each of said portable terminals associated with a microcell, means for detecting the identity of a portable terminal and for detecting the identity of first and second base stations connected to leaky cables which are closest to said portable terminal, for comparing the detected identity of the first and second base stations with said stored predetermined identity and for thereby determining the position of said one terminal.
Claim 21
Dependent Claim
62 words
A system as defined in claim 16 in which each portable terminal is comprised of means for transmitting an identification signal, in which each base station is comprised of means for generating an identification signal, and means in each base station for transmitting its own identification signal with the identification signal of said one terminal upon reception thereof, to said processor means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-07-11 | 1998-01-10 | 1998-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-07-11 | 2002-01-10 | 2002-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-07-11 | 2006-01-10 | 2006-07-12 | $7700.00 | Window Closed / Lapsed |