WO1994010803B1 - Interactive nationwide data service communication system for stationary and mobile battery operated subscriber units - Google Patents
Interactive nationwide data service communication system for stationary and mobile battery operated subscriber unitsInfo
- Publication number
- WO1994010803B1 WO1994010803B1 PCT/US1993/010017 US9310017W WO9410803B1 WO 1994010803 B1 WO1994010803 B1 WO 1994010803B1 US 9310017 W US9310017 W US 9310017W WO 9410803 B1 WO9410803 B1 WO 9410803B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- base station
- subscriber units
- local
- repeater cell
- station repeater
- Prior art date
Links
- 230000002452 interceptive Effects 0.000 title claims abstract 20
- 230000005540 biological transmission Effects 0.000 claims abstract 22
- 230000001702 transmitter Effects 0.000 claims abstract 10
- 239000000969 carrier Substances 0.000 claims 7
- 230000000875 corresponding Effects 0.000 claims 5
- 230000000051 modifying Effects 0.000 claims 3
- 238000009825 accumulation Methods 0.000 claims 2
- 230000001360 synchronised Effects 0.000 claims 2
- 230000001413 cellular Effects 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
Abstract
In a two-way interactive communication video network having a network switching center (2) for point-to-point communications between subscribers at different geographic locations, a local base station (3) configuration is provided for facilitating low power battery operated portable subscriber units (17). The local subscriber units surrounding a base station are adapted for multiplex transmission of digital messages synchronously related to a broadcast television signal for system coordination. Digital messages are transmitted from the local subscriber units to the base station data processing facility through a set of receive only cell site subdivision zones distributed over the base station transmitter geographical range, which communicate with the base station data processing facility over a communication link such as wired cable. Messages are compiled and relayed by satellite to a network switching center transmitter site for nationwide point-to-point communications. Small-size, inexpensive, low-power, portable, digital-transmitting subscriber units are introduced compatible with interactive video data system standards with the ability to cross subdivision and cell zones. Thus, monitoring of inventory, temperature, and other parameters for passive automatic alarm systems and the like, as well as active mobility of subscriber units for meter reading and the like is made possible with direct low-cost nationwide real time reporting capability.
Claims
1. A base station configuration in a two-way communication interactive video network having network hub switching center means for routing communications from and to a plurality of subscriber units comprising: subscriber units dispersed at various locations within a predetermined base station geographic area, local base station repeater cell means for communicating with identified individual subscriber units within a local base station geographic area associated with said local base station repeater cell means, said local base station repeater cell means further comprising, base station data processing and transmission means for transmitting to a set of said local subscriber units contained within said local base station geographic area associated with said local base station repeater cell means and receiving from a subset of said local set of subscriber units multiplexed synchronously related digital data messages of variable lengths for point-to-point communication between said local base station repeater cell means and said subset of said local subscriber units, reception means for receiving and processing data messages from said set of local subscriber units comprising a local remote receiver disposed within one of a plurality of cell subdivision site partitioned from said local base station geographic area associated with said local base station repeater cell means, said plurality of cell subdivision sites dispersed over said local base station geographic area, each of said local remote receivers adapted for receiving-only low power digital messages transmitted from said local subscriber units within range of said local remote receiver, and a set of local subscriber transceiver units including low power mobile units located within said local base station geographic area, each of said local subscriber transceiver units adapted to communicate with said local base station repeater cell means by way of digital data signals of variable lengths synchronously related and timed for multiplexed message transmission.
2. The base station configuration defined in Claim 1 wherein said network hub switching center means is located remotely from said predetermined base station geographic area, said network hub switching center means further comprising, base station data processing facilities in each of said local base station repeater cell means and said network hub switching means for communicating designated digital data messages between said set of local subscriber units in said predetermined local base station geographic area and other subscriber units located in the vicinity of said local base station repeater cell means wherein said other subscriber units are not located in said predetermined local base station geographic area via said network hub switching center means.
3. The configuration of claim 2 further comprising, message accumulation means in said base station data processing facilities operative to store and retransmit digital message packets from said set of local subscriber units and said other subscriber units comprising a sequence of subscriber transmission frames, and processing means for retransmission of said digital message packets to said network hub switching center means by satellite.
4. The configuration of claim 2 further comprising, subscriber unit management and transmission means for conveying messages from said local base station repeater cell means to said network hub switching center means which processes a subscriber message data bit output from said base station repeater cell means at 2.560 Kbaud.
5. The configuration of claim 4 further comprising a set of n isolated said cell sites, and assembling means for accumulating said messages from said n cell sites and transmitting the accumulated messages over said transmission means at a message data bit capacity of n times 2.560 Kbaud.
6. The configuration of claim 5 further comprising means for interlacing 64 subscriber units for transmitting simultaneously multiplexed messages at said local base station repeater cell means.
7. The configuration of claim 5 further comprising means for transmitting bit data rate at 5.16 Kbaud from said subscriber units to the assembling means.
8. The configuration of claim 2 further comprising means for transmitting messages from each of said plurality of cell subdivision sites on different carrier frequencies.
9. The configuration of claim 1 further comprising, means in said local base station repeater cell means for compensating for the time of propagation of messages between the different individual subscriber units and said base station data processing facilities.
10. The configuration of claim 1 further comprising a transmitter for conveying messages from said local base station repeater cell means to said subscriber units on a carrier frequency of substantially 218 MHz.
11. The configuration of claim 1 wherein each of said local subscriber units is individually identified by reception and transmission of digital signal pulses in a predetermined timing relationship synchronized with a television frame of a television broadcast signal.
12. The configuration of claim 1 wherein said local subscriber units comprise digital message organization means for disassembling a variable length digital message for transmission on a sequence of fixed length transmission frames.
13. The configuration of claim 1 further comprising receive only stations in said cell subdivision sites, and means for operating said local base station repeater cell means and subscriber units to hand-off a communication message for transmission over a path through a single one of said cell subdivision receive-only stations.
14. The configuration of claim 13 further comprising subscriber units operable to transmit on a plurality of frequency bands, and receive-only receivers at different subdivision sites operable in different ones of said frequency bands.
15. The configuration of claim 13 which comprises one of a plurality of local base station repeater cell means in said network, further comprising facilities for handing off communications from a subscriber unit within said local base station geographic area for communication through a network path of a different local base station repeater cell means.
16. A point-to-point interactive video network system having a central switching station, a plurality of local base station repeater cell means, a satellite station, and a set of subscriber units located in the vicinity of each local base station repeater cell means, comprising in combination, means for providing for two-way digital communications between two different subscriber units by a serial communication path extending through said local base station repeater cell means, the satellite, the central station, the satellite and back to a local base station repeater cell means, wherein at least some of said local base station repeater cell means serve a set of subscriber units dispersed over a predetermined base station geographic area and comprise communication means between the subscriber units with the local base station repeater cell means including a set of stationary receive only terminals remote from the local base station repeater cell means coupled by a communication link with the local base station repeater cell means for conveying transmitted messages from subscriber units in a subdivided portion of said predetermined base station geographic area in the vicinity of the receive only terminals to the local base station repeater cell means, subscriber transmitter units for transmitting digital amplitude modulated pulses at a peak power in the milliwatt range, and data processing means at the local base station repeater cell means for assembling and re-transmitting digital subscriber messages from the subscriber units via the satellite to the central station.
17. The system of Claim 16 wherein said subscriber units transmit solely in a digital mode.
18. The system of Claim 16 wherein said subscriber units transmit on a plurality of frequency bands.
19. The system of Claim 16 wherein said subscriber units are portable, and wherein said local base station repeater cell means includes means to receive messages from said subscriber units through a single one of said receive only terminals.
20. The system of Claim 16 wherein each-of the receive only terminals receives signals in a different frequency band, and said subscriber units have means for selecting a transmission carrier frequency in a plurality of the frequency bands.
21. A subscriber unit adapted for two-way interactive video data service communication in a system employing base station repeater cell means and a local remote receiver comprising: a digital transmitter, wherein said digital transmitter has a maximum power output in the milliwatt range, and receiver means for receiving synchronized signals from a base station repeater cell means.
22. The subscriber unit of Claim 21, wherein said digital transmitter operates on a carrier frequency band in the order of approximately 218 MHz.
23. The subscriber unit of Claim 21 wherein said subscriber unit is a battery operated portable unit .
24. The subscriber unit of Claim 21 wherein said subscriber unit has a unique identification number such that said subscriber unit can be differentiated from a plurality of said subscriber units, by said base station repeater cell means, such that said subscriber unit can be exclusively selected to receive a message from said base station repeater.
25. The subscriber unit of Claim 21 further including means for transmitting messages to a local remote receiver and said base station repeater cell means on a plurality of frequency bands.
26. The subscriber unit of Claim 21 further including means for responding to a request transmitted from said base station repeater cell means for said subscriber unit to set up conditions for a return transmission of a message from said subscriber unit to said base station repeater cell means.
27. The subscriber unit of Claim 26 further including set up means for selecting a transmission path for said return transmission of said message from said subscriber unit to said base station repeater cell means.
28. An interactive video data system having subscribers with portable subscriber units and facilities for communicating from said subscriber units when moved through different geographic zones.
29. The system of Claim 28 further comprising a set of battery operated subscriber units having peak transmitting power in the order of milliwatts.
30. The system of Claim 28 further comprising a set of subscriber units limited to digital processing facilities comprising digital transducers and means for transmitting digital data derived by said transducers.
31. The system of Claim 28 wherein said system comprises a set of geographically separated base stations of defined geographic area, and said subscriber units have facilities for communicating during movement from one base station area to another.
32. The system of Claim 28 wherein said system comprises a base station of defined geographic area for serving a set of said subscriber units, said area is subdivided into a plurality of zones, and receive only stations located in said zones for reception of transmissions from subscriber units located in the respective zones.
33. The system of Claim 32 further comprising facilities in said base station and subscriber units for handing off communications between zones when communicated signals deteriorate below a given threshold.
34. A digital cellular communication system comprising in combination, a cell site divided into a plurality of subdivided zones, a plurality of subscriber units with identity numbers based in said cell site, a cell site communication system including a digital transmitter for communication with individual identified subscriber units geographically located within the cell site, a set of receive only digital receivers positioned in said subdivided zones, each said digital receiver being coupled by a transmission link with the cell site communication system to relay received digital communications, and a set of said subscriber units comprising portable wireless digital communication units with a limited power digital transmitter having a transmitting power for transmissions within the area of the subdivided zones and a receiver for reception of digital messages from said cell site digital transmitter.
35. A two-way communication interactive video network system having network hub switching center means for routing communications to and from a plurality of subscriber units comprising: base station repeater cell means for communicating with a plurality of subscriber units, said base station repeater cell means and said plurality of subscriber units disposed in a respective geographic area, said base station repeater cell means further comprising, data processing and transmission means for transmitting to and receiving from at least one of said plurality of said subscriber units multiplexed synchronously related data messages of variable lengths, such that point-to- point communication between said base station repeater cell means and said at least one of said plurality of subscriber units is possible, reception means for receiving and processing said multiplexed synchronously related data messages from said at least one of said plurality of subscriber units and relaying said multiplexed synchronously related data messages from said at least one of said plurality of subscriber units to said base station repeater cell means.
36. The two-way communication interactive video network system of Claim 35 wherein said point-to-point communication between said base station repeater cell means and said at least one of said plurality of said subscriber units is accomplished via digital data modulated on an r-f carrier.
37. The two-way communication interactive video network system of Claim 36 wherein said point-to-point communication between said base station repeater cell means and said at least one of said plurality of said subscriber units is accomplished via digital data modulated on an r-f carrier frequency of approximately 218 MHz.
38. The two-way communication interactive video network system of Claim 35 wherein said plurality of subscriber units are further comprised of: low power mobile units located within said respective geographic area, each of said low power mobile units adapted to communicate with said base station repeater cell means by way of digital data signals of variable lengths synchronously related and timed for multiplexed message transmission with said base station repeater cell means.
39. The two-way communication interactive video network system of Claim 35 wherein said plurality of subscriber units are further comprised of: digital message organization means for disassembling said multiplexed synchronously related data messages of variable lengths and for transmitting data in a sequence of fixed length transmission frames.
40. The two-way communication interactive video network system of Claim 35 wherein said reception means further comprises: at least one local remote receiver disposed within a respective at least one base station repeater cell means subdivision site wherein said at least one cell subdivision site is partitioned from said respective geographic area associated with said base station repeater cell means, said at least one local remote receiver adapted for receiving-only low power digital messages transmitted from said subscriber units within range of said at least one local remote receiver and for relaying said low power digital messages to said base station repeater cell means.
41. The two-way communication interactive video network system of Claim 35 further including a plurality of said base station repeater cell means each of said plurality of said base station repeater cell means for communicating with a corresponding plurality of subscriber units wherein each of said plurality of said base station repeater cell means and said corresponding plurality of subscriber units are disposed in a common geographic area.
42. The two-way communication interactive video network system of Claim 41 wherein each of said plurality of said base station repeater cell means has a respective at least one local remote receiver associated therewith, said respective at least one local remote receiver disposed within a respective at least one base station repeater cell means subdivision site partitioned from said respective geographic area associated with said respective base station repeater cell means, said at least one local remote receiver adapted for receiving-only low power digital messages transmitted from said subscriber units within range of said at least one local remote receiver and for relaying said low power digital messages to said corresponding base station repeater cell means.
43. The two-way communication interactive video network system of Claim 41 further comprising: hub switching center means located remotely from said plurality of base station repeater cell means for routing designated digital data messages between a first plurality of subscriber units and a corresponding first base station repeater cell in a first geographic area and a second plurality of subscriber units and a corresponding second base station repeater cell located in a second geographic areas.
44. The two-way communication interactive video network system of Claim 35 wherein said data processing and transmission means of said base station repeater cell means further comprises: message accumulation means for storing and retransmitting digital message packets received from said at least one of said plurality of subscriber units, said message packets comprising a sequence of subscriber transmission frames, and means for retransmitting said message packets to a hub switching center of an interactive video network system via a satellite.
45. The two-way communication interactive video network system of Claim 42 further comprising: means for transmitting messages from each of at said least one base station repeater cell means subdivision sites on a different carrier frequency.
46. The two-way communication interactive video network system of Claim 35 further comprising: means for compensating for the time of propagation of said multiplexed synchronously related data messages between said subscriber units and said data processing means of said base station repeater cell means. STATEMENT UNDER ARTICLE 19
The amendment of Claims 1-34 is made in order to more distinctly and particularly point out the subject matter of the claims. The amendment consisting of the addition of new Claims 35-46 does not go beyond the disclosure of the International Application as filed since full support for these Claims can be found in the description.
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6511138A JPH08503582A (en) | 1992-10-26 | 1993-10-19 | Interactive national data service communication system for stationary and mobile battery operated subscriber units. |
KR1019950701543A KR950704913A (en) | 1992-10-26 | 1993-10-19 | INTERACTIVE NATIONWIDE DATA SERVICE COMMUNICATION SYSTEM FOR STATIONARY AND MOBILE BATTERY OPERATED SUBSCRIBER UNITS |
PL93308533A PL172507B1 (en) | 1992-10-26 | 1993-10-19 | Interactive country-wide data transmission system for serving stationary and mobile, battery powered subscriber's units |
EP94905309A EP0666010A1 (en) | 1992-10-26 | 1993-10-19 | Interactive nationwide data service communication system for stationary and mobile battery operated subscriber units |
AU58958/94A AU673889B2 (en) | 1992-10-26 | 1993-10-19 | Interactive nationwide data service communication system forstationary and mobile battery operated subscriber units |
PL93318596A PL172843B1 (en) | 1992-10-26 | 1993-10-19 | Subscriber's station unit for bi-directional video and data communication services |
BR9307433-6A BR9307433A (en) | 1992-10-26 | 1993-10-19 | Interactive video communication network, point-to-point interactive video network system, subscriber unit and interactive video communication network system |
PL93318597A PL172850B1 (en) | 1992-10-26 | 1993-10-19 | Point-to-point network-type communication system |
FI951960A FI951960A0 (en) | 1992-10-26 | 1995-04-25 | Interactive national data service communication system for fixed and mobile battery-powered subscriber equipment |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/966,414 | 1992-10-26 | ||
US07/966,414 US5388101A (en) | 1992-10-26 | 1992-10-26 | Interactive nationwide data service communication system for stationary and mobile battery operated subscriber units |
Publications (2)
Publication Number | Publication Date |
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WO1994010803A1 WO1994010803A1 (en) | 1994-05-11 |
WO1994010803B1 true WO1994010803B1 (en) | 1994-06-23 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1993/010017 WO1994010803A1 (en) | 1992-10-26 | 1993-10-19 | Interactive nationwide data service communication system for stationary and mobile battery operated subscriber units |
Country Status (17)
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US (6) | US5388101A (en) |
EP (1) | EP0666010A1 (en) |
JP (1) | JPH08503582A (en) |
KR (1) | KR950704913A (en) |
CN (1) | CN1090444A (en) |
AU (1) | AU673889B2 (en) |
BR (1) | BR9307433A (en) |
CA (1) | CA2147837A1 (en) |
CZ (1) | CZ106995A3 (en) |
FI (1) | FI951960A0 (en) |
HU (1) | HU215226B (en) |
IL (1) | IL107399A (en) |
MX (1) | MX9306558A (en) |
PE (1) | PE55294A1 (en) |
PL (3) | PL172507B1 (en) |
WO (1) | WO1994010803A1 (en) |
ZA (1) | ZA937728B (en) |
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-
1993
- 1993-10-19 JP JP6511138A patent/JPH08503582A/en active Pending
- 1993-10-19 AU AU58958/94A patent/AU673889B2/en not_active Ceased
- 1993-10-19 EP EP94905309A patent/EP0666010A1/en not_active Ceased
- 1993-10-19 HU HU9501111A patent/HU215226B/en not_active IP Right Cessation
- 1993-10-19 PL PL93308533A patent/PL172507B1/en unknown
- 1993-10-19 WO PCT/US1993/010017 patent/WO1994010803A1/en not_active Application Discontinuation
- 1993-10-19 CZ CZ951069A patent/CZ106995A3/en unknown
- 1993-10-19 BR BR9307433-6A patent/BR9307433A/en not_active Application Discontinuation
- 1993-10-19 ZA ZA937728A patent/ZA937728B/en unknown
- 1993-10-19 KR KR1019950701543A patent/KR950704913A/en not_active Application Discontinuation
- 1993-10-19 PL PL93318596A patent/PL172843B1/en unknown
- 1993-10-19 CA CA002147837A patent/CA2147837A1/en not_active Abandoned
- 1993-10-19 PL PL93318597A patent/PL172850B1/en unknown
- 1993-10-22 MX MX9306558A patent/MX9306558A/en not_active IP Right Cessation
- 1993-10-25 IL IL107399A patent/IL107399A/en not_active IP Right Cessation
- 1993-10-26 CN CN93119571A patent/CN1090444A/en active Pending
- 1993-10-26 PE PE1993229995A patent/PE55294A1/en not_active Application Discontinuation
-
1994
- 1994-05-10 US US08/240,883 patent/US5737363A/en not_active Expired - Fee Related
- 1994-05-10 US US08/240,147 patent/US5481546A/en not_active Expired - Lifetime
- 1994-12-02 US US08/348,618 patent/US5592491A/en not_active Expired - Lifetime
-
1995
- 1995-02-03 US US08/383,806 patent/US5633876A/en not_active Expired - Fee Related
- 1995-02-03 US US08/383,805 patent/US5751693A/en not_active Expired - Fee Related
- 1995-04-25 FI FI951960A patent/FI951960A0/en not_active Application Discontinuation
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