Techniques for implementing telephonic, fax, and/or data communications using internet protocols and satellite links

• US 7,103,017 B2
• Filed: 01/30/2001
• Issued: 09/05/2006
• Est. Priority Date: 01/30/2001
• Status: Expired due to Term

• Current Assignee: Globecomm Systems Incorporated
• Original Assignee: Globecomm Systems Incorporated
• Inventors: Gutman, Donald, Delgado, Paul
• Primary Examiner(s): Vu, Huy D.
• Assistant Examiner(s): Ryman, Daniel
• Application Number:
  US09/774,207
• Publication Number:
  US 20020101831A1
• Time in Patent Office: 2,044 Days
• Field of Search: 370/316, 370/466, 370/535, 370/401, 370/352, 455/12.1, 455/427, 455/428
• US Class Current: 370/316
• CPC Class Codes: H04B 7/18582 Arrangements for data linking, i.e. for data framing, for error recovery, for multiple access
• CPC Class Codes: H04L 12/2856 Access arrangements, e.g. Internet access asynchronous transfer mode networks H04L12/5601; broadband local area networks H04L12/2801; optical access or distribution networks H04Q11/0067; access to open networks H04L12/5691; digital subscriber line end-user equipment and bit-level processing of data on a PSTN-based network H04M11/00; home network gateways H04L12/2834; wireless access networks H04W
• CPC Class Codes: H04L 69/08 Protocols for interworking; Protocol conversion
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04M 7/006 Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP) , including next generation networks with a packet-switched transport layer H04L65/00 takes precedence; aspects not specific to the type of network H04M3/00; special services in those networks H04M3/42

Abstract

A mobile auxiliary communications facility for use with a satellite-equipped communications link and a gateway hub. The satellite-based communications link is adapted to provide one or more Internet Protocol (IP) communication pathways between a first location and a second location. The gateway hub, situated at the first location, is coupled to a terrestrial data network and also to a terrestrial telephonic network. The mobile auxiliary communications facility of the present invention includes a utilization mechanism for utilizing the IP communication pathways to implement one or more bi-directional telephonic communication links and one or more bi-directional data links between the first location and the second location. The mobile auxiliary communications facility is equipped with a conversion/deconversion mechanism and a bandwidth allocation, multiplexing and demultiplexing mechanism. In operation, the mobile auxiliary communications facility is deployed to a second location which represents a site that does not have access to a terrestrial communications network, a site where access to a terrestrial network has been interrupted, and/or a site where a terrestrial network is not functional. The conversion/deconversion mechanism converts voice, speech, and/or audio signals into a packet format compatible with standard Internet Protocol (IP) data transmissions. The bandwidth allocation, multiplexing and demultiplexing mechanism allocates the available bandwidth of a communications link by combining voice and data packets into a single composite IP data channel. This combination process is performed in accordance with usage, demand, and/or a set of quality of service (QoS) prioritization parameters. The bandwidth allocation, multiplexing and demultiplexing mechanism responds to a momentary lack of voice activity by temporarily reducing the number of voice IP packets on the composite IP data channel.

Claims

1. A communications system for use with a satellite-equipped link to establish one or more Internet Protocol (IP) communication pathways between a first location and a second location;

the communications system comprising;

(a) a gateway hub, at the first location, coupled to a terrestrial data network and also to a terrestrial telephonic network; and

(b) a mobile auxiliary communications facility at the second location, wherein the mobile auxiliary communications facility includes a utilization mechanism for utilizing the IP communication pathways to implement one or more bi-directional telephonic communication links and one or more bi-directional data links,

wherein the mobile auxiliary communications facility further includes a conversion/deconversion mechanism for converting voice, speech, and/or audio signals into a packet format compatible with standard Internet Protocol (IP) data transmissions, and also for deconverting an IP data packet transmission into a voice, speech, and/or audio signal, and

wherein the mobile auxiliary communications facility further includes a bandwidth allocation, multiplexing and demultiplexing mechanism for allocating the available bandwidth of a communications link by combining voice and data packets into a single composite IP data channel on at least one of the one or more IP communication pathways

wherein the mobile auxiliary communications facility is provided in the form of one or more mobile communications shelters,

wherein the conversion/deconversion mechanism is implemented by one or more VoIP (Voice to Internet Protocol) Routers, and the bandwidth allocation, multiplexing and demultiplexing mechanism is implemented by an aggregation router, such that the aggregation router, coupled to one or more VoIP Routers, allocates the available bandwidth of a communications link by combining voice and data packets into a single composite IP data channel,

wherein the VoIP router and the aggregation router are distributed amongst a plurality of different physical routers, such that a specified physical router can function as a VoIP router, an aggregation router, or both.

2. The communications system of claim 1 wherein the bandwidth allocation, multiplexing and demultiplexing mechanism combines voice and data packets in accordance with usage, demand, and/or a set of quality of service (QoS) prioritization parameters.

3. The communications system of claim 2 wherein the bandwidth allocation, multiplexing and demultiplexing mechanism responds to a momentary lack of voice activity by temporarily reducing the number of voice IP packets on the single composite IP data channel.

4. The communications system of claim 1 wherein the bandwidth allocation, multiplexing and demultiplexing mechanism segregates data packets on the single composite IP data channel into each of a plurality of voice channels.

5. The communications system of claim 1 wherein the bandwidth allocation, multiplexing and demultiplexing mechanism includes at least one data port to couple to one or more endpoint devices.

6. The communications system of claim 1 wherein voice and data packets are combined by sensing the relative level of voice activity, and, in response thereto, placing a greater or lesser proportion of IP packets representing voice on the composite IP data channel.

7. The communications system of claim 1 wherein a single router is used to implement the VoIP Router as well as the aggregation router.

8. The communications system of claim 1 wherein the composite IP data channel generated by the aggregation router is conveyed to a first modem, wherein the data channel is placed into a format suitable for transmission over a wireless data link.

9. The communications system of claim 8 wherein the first modem is coupled to a satellite earth station which conveys the composite data channel to an orbiting satellite.

10. The communications system of claim 9 wherein the orbiting satellite relays the composite data stream, through a second modem, to the gateway hub.

11. The communications system of claim 10 wherein the gateway hub includes a routing mechanism to direct each of a plurality of incoming IP packets on a composite IP data channel to an appropriate telephone line or data line, following conversion to analog and/or digital voice traffic.

12. The communications system of claim 11 wherein the communication shelters provide a mechanism by which telephonic services as well as computer network services may be accessed from remote locations or communication-disabled locations, such that these services are provided by using a gateway hub to access existing terrestrial telephone infrastructure and computer networks.

13. The communications system of claim 12 wherein any number of mobile communications shelters may be utilized to meet the requirements of specific system applications, such that the communications system is scaleable to meet the communication requirements of small, medium-sized, and large applications.

14. The communications system of claim 13 wherein the gateway hub is connected to a plurality of these remote or communication-disabled locations through an earth-orbiting satellite, wherein users at multiple remote site communicate with the gateway hub in a substantially simultaneous manner.

15. A mobile auxiliary communications facility for use with (i) a satellite-equipped link to establish one or more Internet Protocol (IP) communication pathways between a first location and a second location, and (ii) a gateway hub, at the first location, coupled to a satellite earth station, a terrestrial data network, and a terrestrial telephonic network, the mobile auxiliary communications facility for use at the second location, and comprising:

a utilization mechanism for utilizing the IP communication pathways to implement one or more bi-directional telephonic communication links and one or more bi-directional data links; and

further comprising;

a conversion/deconversion mechanism for converting voice, speech, and/or audio signals into a packet format compatible with standard Internet Protocol (IP) data transmissions, and also for deconverting an IP data packet transmission into a voice, speech, and/or audio signal;

a bandwidth allocation, multiplexing and demultiplexing mechanism for allocating the available bandwidth of a communications link by combining voice and data packets into a single composite IP data channel on at least one of the one or more IP communication pathways; and

one or more mobile communications shelters,

wherein the conversion/deconversion mechanism is implemented by one or more VoIP (Voice to Internet Protocol) Routers, and the bandwidth allocation, multiplexing and demultiplexing mechanism is implemented by an aggregation router, such that the aggregation router, coupled to one or more VoIP Routers, allocates the available bandwidth of a communications link by combining voice and data packets into a single composite IP data channel,

wherein the VoIP router and the aggregation router are distributed amongst a plurality of different physical routers, such that a specified physical router can function as a VoIP router, an aggregation router, or both.

16. The mobile auxiliary communications facility of claim 15 wherein the bandwidth allocation, multiplexing and demultiplexing mechanism combines voice and data packets in accordance with usage, demand, and/or a set of quality of service (QoS) prioritization parameters.

17. The mobile auxiliary communications facility of claim 16 wherein the bandwidth allocation, multiplexing and demultiplexing mechanism responds to a momentary lack of voice activity by temporarily reducing the number of voice IP packets on the single composite IP data channel.

18. The mobile auxiliary communications facility of claim 15 wherein the bandwidth allocation, multiplexing and demultiplexing mechanism is adapted to segregate data packets on the single composite IP data channel into each of a plurality of voice channels.

19. The mobile auxiliary communications facility of claim 15 wherein the bandwidth allocation, multiplexing and demultiplexing mechanism includes at least one data port to couple to one or more endpoint devices.

20. The mobile auxiliary communications facility of claim 15 wherein voice and data packets are combined by sensing the relative level of voice activity, and, in response thereto, placing a greater or lesser proportion of IP packets representing voice on the composite IP data channel.

21. The mobile auxiliary communications facility of claim 15 wherein a single router is used to implement the VoIP Router as well as the aggregation router.

22. The mobile auxiliary communications facility of claim 15 wherein the composite IP data channel generated by the aggregation router is conveyed to a first modem, wherein the data channel is placed into a format suitable for transmission over a wireless data link.

23. The mobile auxiliary communications facility of claim 22 wherein the first modem is coupled to a satellite earth station which conveys the composite data channel to an orbiting satellite.

24. The mobile auxiliary communications facility of claim 23 wherein the orbiting satellite relays the composite data stream, through a second modem, to the gateway hub.

25. The mobile auxiliary communications facility of claim 24 wherein the gateway hub includes a routing mechanism to direct each of a plurality of incoming IP packets on a composite IP data channel to an appropriate telephone line or data line, following conversion to analog and/or digital voice traffic.

26. The mobile auxiliary communications facility of claim 25 wherein the communication shelters provide a mechanism by which telephonic services as well as computer network services may be accessed from remote locations or communication-disabled locations, such that these services are provided by using a gateway hub to access existing terrestrial telephone infrastructure and computer networks.

27. The mobile auxiliary communications facility of claim 26 wherein any number of mobile communications shelters may be utilized to meet the requirements of specific system applications, such that the communications system is scaleable to meet the communication requirements of small, medium-sized, and large applications.

28. The mobile auxiliary communications facility of claim 27 wherein the gateway hub is connected to a plurality of these remote or communication-disabled locations through an earth-orbiting satellite, wherein users at multiple remote sites communicate with the gateway hub in a substantially simultaneous manner.

29. A method for use with (i) a satellite-equipped link to establish one or more Internet Protocol (IP) communication pathways between a first location and a second location, and (ii) a gateway hub, at the first location, coupled to a terrestrial data network and also to a terrestrial telephonic network;

the method comprising the steps of;

(a) utilizing the IP communication pathways to implement one or more bi-directional telephonic communication links at the second location and converting voice, speech, and/or audio signals into a packet format compatible with standard Internet Protocol (IP) data transmissions;

(b) utilizing the IP communication pathways to implement one or more bi-directional data links at the second location;

(c) allocating the available bandwidth of the satellite equipped link by combining voice and data packets into a single composite P data channel on at least one of the one or more IP communication pathways;

providing an auxiliary communications facility at the second location in the form of one or more mobile communications shelters, wherein the one or more shelters perform steps (a) and (b);

wherein step (a) is implemented by one or more VoIP (Voice to Internet Protocol) Routers coupled to an aggregation router, the method further including the step of the aggregation router allocating the available bandwidth of a communications link by combining voice and data packets into a single composite IP data channel; and

conveying the composite IP data channel generated by the aggregation router to a first modem

wherein the VoIP router and the aggregation router are distributed amongst a plurality of different physical routers, such that a specified physical router can function as a VoIP router, an aggregation router, or both.

30. The method of claim 29 wherein the step of allocating the available bandwidth further includes the step of combining voice and data packets in accordance with usage, demand, and/or a set of quality of service (QoS) prioritization parameters.

31. The method of claim 30 wherein the step of allocating the available bandwidth includes the step of responding to a momentary lack of voice activity by temporarily reducing the number of voice IP packets on the single composite IP data channel.

32. The method of claim 29 wherein the step of allocating the available bandwidth includes the step of segregating data packets on the single composite IP data channel into each of a plurality of voice channels.

33. The method of claim 29 for use with at least one data port to couple to one or more endpoint devices.

34. The method of claim 29 wherein voice and data packets are combined by sensing the relative level of voice activity, and, in response thereto, placing a greater or lesser proportion of IP packets representing voice on the composite IP data channel.

35. The method of claim 29 wherein a single router is used to implement the VoIP Router as well as the aggregation router.

36. The method of claim 29 further including the step of the modem converting the data channel into a format suitable for transmission over a wireless data link.

37. The method of claim 36 wherein the first modem is coupled to a satellite earth station, the method further comprising the step of the earth station conveying the composite data channel to an orbiting satellite.

38. The method of claim 37 further including the step of the orbiting satellite relaying the composite data stream, through a second modem, to the gateway hub.

39. The method of claim 38 further including the step of directing each of a plurality of incoming IP packets on a composite IP data channel to an appropriate telephone line or data line, following conversion to analog and/or digital voice traffic.

40. The method of claim 39 further including the step of providing an access mechanism at the communication shelters by which telephonic services as well as computer network services may be accessed from the second location.

41. The method of claim 40 further including the step of deploying one or more communication shelters to the second location, wherein the second location comprises a remote location and/or a communication-disabled location.

42. The method of claim 41 further including the step of using the satellite equipped communications link and the gateway hub to access existing terrestrial telephone infrastructure and computer networks from the one or more communications shelters at the second location.

43. The method of claim 41 further including the step of deploying any number of mobile communications shelters to the second location to meet the requirements of specific system applications.

44. The method of claim 43 further including the step of providing a communications link to the gateway hub from a plurality of remote or communication-disabled locations through an earth-orbiting satellite.