CA2214346A1 - Automatic satellite/terrestrial mobile terminal roaming system and method - Google Patents
Automatic satellite/terrestrial mobile terminal roaming system and methodInfo
- Publication number
- CA2214346A1 CA2214346A1 CA002214346A CA2214346A CA2214346A1 CA 2214346 A1 CA2214346 A1 CA 2214346A1 CA 002214346 A CA002214346 A CA 002214346A CA 2214346 A CA2214346 A CA 2214346A CA 2214346 A1 CA2214346 A1 CA 2214346A1
- Authority
- CA
- Canada
- Prior art keywords
- gateway
- terrestrial
- communications network
- satellite
- network
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000006854 communication Effects 0.000 claims abstract 61
- 230000009977 dual effect Effects 0.000 claims abstract 5
- 230000010267 cellular communication Effects 0.000 claims 9
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 230000007175 bidirectional communication Effects 0.000 claims 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
- H04B7/18563—Arrangements for interconnecting multiple systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/06—Airborne or Satellite Networks
Abstract
A communications system includes a satellite communications component having at least one satellite and at least one terrestrial gateway, and also a wireless terrestrial communications component having at least one repeater and at least one mobile switching center. The at least one gateway and the at least one mobile switching center are coupled together by a first mobile applications part (MAP) network, such as an IS-41 or GSM MAP network. The at least one gateway and the at least one mobile switching center are further coupled to a terrestrial communications network (PSTN). The system further includes at least one dual mode or higher user terminal having a first transceiver for bidirectionally communicating with the gateway through the satellite, a second transceiver for bidirectionally communicating with the mobile switching center through the repeater, and a controller, responsive to one of a user selected or a gateway selected protocol, for selectively enabling either the first or the second transceiver for conveying a user communication to the terrestrial communications network.
Claims (15)
1. A communications system, comprising:
at least one user terminal;
a satellite communications component comprising at least one satellite and at least one terrestrial gateway;
a wireless terrestrial communications component comprising at least one repeater and at least one mobile switching center;
said at least one gateway and said at least one mobile switching center being coupled together by a first mobile applications part network, said at least one gateway and said at least one mobile switching center further being coupled to a terrestrial communications network; and said at least one user terminal comprising a first transceiver for bidirectionally communicating with said gateway through said satellite, a second transceiver for bidirectionally communicating with said mobile switching center through said repeater, and control means, responsive to one of a user selected protocol or a gateway selected protocol, for enabling either said first transceiver or said second transceiver for conveying a user communication to said terrestrial communications network.
at least one user terminal;
a satellite communications component comprising at least one satellite and at least one terrestrial gateway;
a wireless terrestrial communications component comprising at least one repeater and at least one mobile switching center;
said at least one gateway and said at least one mobile switching center being coupled together by a first mobile applications part network, said at least one gateway and said at least one mobile switching center further being coupled to a terrestrial communications network; and said at least one user terminal comprising a first transceiver for bidirectionally communicating with said gateway through said satellite, a second transceiver for bidirectionally communicating with said mobile switching center through said repeater, and control means, responsive to one of a user selected protocol or a gateway selected protocol, for enabling either said first transceiver or said second transceiver for conveying a user communication to said terrestrial communications network.
2. A communications system as set forth in claim 1, wherein said terrestrial communications network is comprised of a public switched telephone network.
3. A communications system as set forth in claim 1, wherein said gateway is bidirectionally coupled to said mobile applications part network through one of a home location register or a visitor location register.
4. A communications system as set forth in claim 3, wherein said gateway is bidirectionally coupled to a second mobile applications part network through one of a home location register or a visitor location register.
5. A communications system as set forth in claim 1, wherein said gateway is further comprised of a data base storing data representing a map indicating poor quality communications areas within a gateway service area, and wherein said gateway selected protocol is modified as a function of said data from said data base.
6. A communications system as set forth in claim 1, wherein said gateway is further comprised of a data base storing data representing a historical record of user terminal availability within a gateway service area, and wherein said gateway selected protocol is modified as a function of said data from said data base.
7. A communications system as set forth in claim 1 wherein said gateway is comprised of first interface means for coupling said gateway to said first mobile applications part network and a second interface means for coupling said gateway to a second mobile applications parts network.
8. A communications system as set forth in claim 7, wherein said second interface means also couples said gateway to said terrestrial communications network.
9. A communications system as set forth in claim 1, wherein said gateway is further comprised of means for storing pages directed to said user terminal when said user terminal is not available to receive pages, and for subsequently delivering said stored pages to said user terminal when said user terminal is enabled to receive pages.
10. A dual mode user terminal, comprising:
a first transceiver for communicating with a satellite communications network that comprises at least one satellite and at least one terrestrial gateway;
a second transceiver for communicating with a terrestrial cellular communications network comprising at least one repeater and at least one mobile switching center; and a processor, responsive to one of a user selected protocol or a gateway selected protocol, for enabling either said first or said second transceiver for registering said user terminal with one of said satellite communications network or said terrestrial cellular communications network, wherein one of said satellite communications network or terrestrial cellular communications network is assigned a higher priority than the other for first attempting registration, and wherein said processor initiates a registration into the other network after registering with the highest priority network.
a first transceiver for communicating with a satellite communications network that comprises at least one satellite and at least one terrestrial gateway;
a second transceiver for communicating with a terrestrial cellular communications network comprising at least one repeater and at least one mobile switching center; and a processor, responsive to one of a user selected protocol or a gateway selected protocol, for enabling either said first or said second transceiver for registering said user terminal with one of said satellite communications network or said terrestrial cellular communications network, wherein one of said satellite communications network or terrestrial cellular communications network is assigned a higher priority than the other for first attempting registration, and wherein said processor initiates a registration into the other network after registering with the highest priority network.
11. A dual mode user terminal, comprising:
a first transceiver for communicating with a satellite communications network that comprises at least one satellite and at least one terrestrial gateway;
a second transceiver for communicating with a terrestrial cellular communications network comprising at least one repeater and at least one mobile switching center; and a processor, responsive to one of a user selected protocol or a gateway selected protocol, for enabling either said first or said second transceiver for registering said user terminal with one of said satellite communications network or said terrestrial cellular communications network, wherein one of said satellite communications network or terrestrial cellular communications network is assigned a higher priority than the other for first attempting registration, and wherein said processor automatically initiates a registration into the other network after de-registering with the highest priority network.
a first transceiver for communicating with a satellite communications network that comprises at least one satellite and at least one terrestrial gateway;
a second transceiver for communicating with a terrestrial cellular communications network comprising at least one repeater and at least one mobile switching center; and a processor, responsive to one of a user selected protocol or a gateway selected protocol, for enabling either said first or said second transceiver for registering said user terminal with one of said satellite communications network or said terrestrial cellular communications network, wherein one of said satellite communications network or terrestrial cellular communications network is assigned a higher priority than the other for first attempting registration, and wherein said processor automatically initiates a registration into the other network after de-registering with the highest priority network.
12. A dual mode user terminal, comprising:
a first transceiver for communicating with a satellite communications network that comprises at least one satellite and at least one terrestrial gateway;
a second transceiver for communicating with a terrestrial cellular communications network comprising at least one repeater and at least one mobile switching center; and a processor for registering said user terminal simultaneously into both said satellite communications network and into said terrestrial cellular communications network and, in response to a loss of communication with a preferred on of said satellite or terrestrial communications networks, for sending a message to a HLR or VLR of the other network.
a first transceiver for communicating with a satellite communications network that comprises at least one satellite and at least one terrestrial gateway;
a second transceiver for communicating with a terrestrial cellular communications network comprising at least one repeater and at least one mobile switching center; and a processor for registering said user terminal simultaneously into both said satellite communications network and into said terrestrial cellular communications network and, in response to a loss of communication with a preferred on of said satellite or terrestrial communications networks, for sending a message to a HLR or VLR of the other network.
13. A dual mode user terminal, comprising:
a first transceiver for communicating with a satellite communications network that comprises at least one satellite and at least one terrestrial gateway;
a second transceiver for communicating with a terrestrial cellular communications network comprising at least one repeater and at least one mobile switching center; and control means responsive to one of a plurality of predetermined initial conditions for establishing bidirectional communications with at least one of said satellite communications network or said terrestrial communications network, said plurality of initial conditions comprising (a) logging in only to said satellite communications network; (b) logging into said satellite communications network but authorized to switch to said terrestrial communications network;
(c) logging into both said satellite communications network and into said terrestrial communications network, wherein an automatic network search mode begins with said satellite communications network; (d) logging only into said terrestrial communications network; (e) logging into said terrestrial communications network but authorized to switch to said satellite communications network; and (f) logging into both said satellite communications network and into said terrestrial communications network, wherein said automatic network search mode begins with said terrestrial communications network.
a first transceiver for communicating with a satellite communications network that comprises at least one satellite and at least one terrestrial gateway;
a second transceiver for communicating with a terrestrial cellular communications network comprising at least one repeater and at least one mobile switching center; and control means responsive to one of a plurality of predetermined initial conditions for establishing bidirectional communications with at least one of said satellite communications network or said terrestrial communications network, said plurality of initial conditions comprising (a) logging in only to said satellite communications network; (b) logging into said satellite communications network but authorized to switch to said terrestrial communications network;
(c) logging into both said satellite communications network and into said terrestrial communications network, wherein an automatic network search mode begins with said satellite communications network; (d) logging only into said terrestrial communications network; (e) logging into said terrestrial communications network but authorized to switch to said satellite communications network; and (f) logging into both said satellite communications network and into said terrestrial communications network, wherein said automatic network search mode begins with said terrestrial communications network.
14. A communications system, comprising:
at least one user terminal;
a satellite communications component comprising at least one satellite and at least one terrestrial gateway, said gateway comprising a data base storing data representing a map indicating poor quality communications areas within a gateway service area;
a wireless terrestrial communications component comprising at least one repeater and at least one mobile switching center;
said at least one gateway and said at least one mobile switching center being coupled together by a first mobile applications part network, said at least one gateway and said at least one mobile switching center further being coupled to a terrestrial communications network; and said at least one user terminal comprising a first transceiver for bidirectionally communicating with said gateway through said satellite, a second transceiver for bidirectionally communicating with said mobile switching center through said repeater, and control means, responsive to one of a user selected protocol or a gateway selected protocol, for enabling either said first transceiver or said second transceiver for conveying a user communication to said terrestrial communications network, wherein said gateway selected protocol is modified as a function of said data from said data base.
at least one user terminal;
a satellite communications component comprising at least one satellite and at least one terrestrial gateway, said gateway comprising a data base storing data representing a map indicating poor quality communications areas within a gateway service area;
a wireless terrestrial communications component comprising at least one repeater and at least one mobile switching center;
said at least one gateway and said at least one mobile switching center being coupled together by a first mobile applications part network, said at least one gateway and said at least one mobile switching center further being coupled to a terrestrial communications network; and said at least one user terminal comprising a first transceiver for bidirectionally communicating with said gateway through said satellite, a second transceiver for bidirectionally communicating with said mobile switching center through said repeater, and control means, responsive to one of a user selected protocol or a gateway selected protocol, for enabling either said first transceiver or said second transceiver for conveying a user communication to said terrestrial communications network, wherein said gateway selected protocol is modified as a function of said data from said data base.
15. A communications system, comprising:
at least one user terminal;
a satellite communications component comprising at least one satellite and at least one terrestrial gateway, said gateway comprising a data base storing data representing a historical record of user terminal availability within a gateway service area;
a wireless terrestrial communications component comprising at least one repeater and at least one mobile switching center;
said at least one gateway and said at least one mobile switching center being coupled together by a first mobile applications part network, said at least one gateway and said at least one mobile switching center further being coupled to a terrestrial communications network; and said at least one user terminal comprising a first transceiver for bidirectionally communicating with said gateway through said satellite, a second transceiver for bidirectionally communicating with said mobile switching center through said repeater, and control means, responsive to one of a user selected protocol or a gateway selected protocol, for enabling either said first transceiver or said second transceiver for conveying a user communication to said terrestrial communications network, wherein said gateway selected protocol is modified as a function of said data from said data base.
at least one user terminal;
a satellite communications component comprising at least one satellite and at least one terrestrial gateway, said gateway comprising a data base storing data representing a historical record of user terminal availability within a gateway service area;
a wireless terrestrial communications component comprising at least one repeater and at least one mobile switching center;
said at least one gateway and said at least one mobile switching center being coupled together by a first mobile applications part network, said at least one gateway and said at least one mobile switching center further being coupled to a terrestrial communications network; and said at least one user terminal comprising a first transceiver for bidirectionally communicating with said gateway through said satellite, a second transceiver for bidirectionally communicating with said mobile switching center through said repeater, and control means, responsive to one of a user selected protocol or a gateway selected protocol, for enabling either said first transceiver or said second transceiver for conveying a user communication to said terrestrial communications network, wherein said gateway selected protocol is modified as a function of said data from said data base.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2675763A CA2675763C (en) | 1996-09-04 | 1997-08-29 | Automatic satellite/terrestrial mobile terminal roaming system and method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/707,534 | 1996-09-04 | ||
US08/707,534 US6072768A (en) | 1996-09-04 | 1996-09-04 | Automatic satellite/terrestrial mobile terminal roaming system and method |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2675763A Division CA2675763C (en) | 1996-09-04 | 1997-08-29 | Automatic satellite/terrestrial mobile terminal roaming system and method |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2214346A1 true CA2214346A1 (en) | 1998-03-04 |
CA2214346C CA2214346C (en) | 2009-12-22 |
Family
ID=24842093
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002214346A Expired - Lifetime CA2214346C (en) | 1996-09-04 | 1997-08-29 | Automatic satellite/terrestrial mobile terminal roaming system and method |
CA2675763A Expired - Lifetime CA2675763C (en) | 1996-09-04 | 1997-08-29 | Automatic satellite/terrestrial mobile terminal roaming system and method |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2675763A Expired - Lifetime CA2675763C (en) | 1996-09-04 | 1997-08-29 | Automatic satellite/terrestrial mobile terminal roaming system and method |
Country Status (13)
Country | Link |
---|---|
US (2) | US6072768A (en) |
EP (1) | EP0831599A3 (en) |
JP (1) | JPH10191423A (en) |
KR (1) | KR19980024349A (en) |
CN (1) | CN1177261A (en) |
AU (1) | AU727452B2 (en) |
BR (1) | BR9712011A (en) |
CA (2) | CA2214346C (en) |
HK (1) | HK1002163A2 (en) |
ID (1) | ID17009A (en) |
RU (1) | RU2193815C2 (en) |
TW (1) | TW387174B (en) |
WO (1) | WO1998010521A2 (en) |
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WO1998010521A2 (en) | 1998-03-12 |
EP0831599A2 (en) | 1998-03-25 |
RU2193815C2 (en) | 2002-11-27 |
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