Satellite based simulcast paging system

• US 5,010,317 A
• Filed: 11/30/1989
• Issued: 04/23/1991
• Est. Priority Date: 11/30/1989
• Status: Expired due to Term

• Current Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Schwendeman, Robert J., Kuznicki, William J.
• Primary Examiner(s): Crosland, Donnie L.
• Application Number:
  US07/444,457
• Time in Patent Office: 509 Days
• Field of Search: 340/311.1, 340/825.44, 340/825.46, 455/7, 455/12, 455/13
• US Class Current: 340/7.26
• CPC Class Codes: H04B 7/18567 Arrangements for providing additional services to the basic mobile satellite telephony service
• CPC Class Codes: H04H 20/67 Common-wave systems, i.e. using separate transmitters operating on substantially the same frequency
• CPC Class Codes: H04W 84/022 One-way selective calling networks, e.g. wide area paging

Abstract

A satellite based simulcast paging communication system comprises a plurality of terrestrial stations capable of simulcasting the paging information with at least one satellite for reception by one or more of a plurality of terrestrial receivers (pagers). Also included is at least one control station for determining where and how to deliver the paging information to achieve simulcast transmission.

Claims

1. A simulcast paging communication system, comprising:

terrestrial based communication means for communicating paging information with a satellite based communication means, the terrestrial based communication means being also capable of simulcasting the paging information with the satellite based communication measn for reception by at least one selective call receiver;

the satellite based communication means for communicating the paging information with at least a portion of the terrestrial based communication means and for simulcasting the paging information with at least a portion of the terrestrial based communication means for reception by at least one selective call receiver and; and

a plurality of selective call receivers, for receiving the simulcast paging information from the satellite based communication means and the terrestrial based communication means.

2. The system of claim 1, wherein the satellite based communication means comprises at least one geostationary satellite orbiting a celestial body.

3. The system of claim 1, wherein the satellite based communication means adapts at least a portion of itself to communicate the paging information in accordance with instructions provided by an individual designated to receive the paging information.

4. The system of claim 3, wherein the satellite based communication means adapts at least a paging communication protocol.

5. The system of claim 3, wherein the satellite based communication means adapts at least a paging communication frequency.

6. the system of claim 1, wherein the terrestrial based communication means includes means for converting the paging information received from the satellite based communication means to accommodate the selective call receiver designated to receive the paging information.

7. The system of claim 1, which includes a control means for determining where and how to deliver the paging information.

8. The system of claim 7, wherein the control means includes a memory means for storing at least information representing a preferred paging protocol for at least some of the selective call receivers operative on the system.

9. The system of claim 7, wherein the control means determines where and how to deliver the paging information in accordance with the information stored within the memory means.

10. The system of claim 7, wherein the control means includes delay means for delaying transmission of the paging information.

11. The system of claim 1, wherein the satellite based communication means includes delay means for delaying transmission of the paging information.

12. A simulcast paging communication system, comprising:

a plurality of terrestrial receivers, at least some of which are capable of receiving paging information simulcast from at least one satellite and one or more terrestrial stations;

the terrestrial stations being capable of simulcasting the paging information with at least one satellite, and capable of adapting the paging information so as to be compatible with at least one of the plurality of terrestrial receivers; and

at least one satellite capable of simulcasting the paging information to at least one terrestrial station for reception by at least one of the plurality of terrestrial receivers.

13. The system of claim 12, which includes a plurality of satellites arranged to form a satellite network capable of adapting at least a portion of itself to communicate the paging information in accordance with instructions provided by an individual designated to receive the paging information.

14. The system of claim 13, wherein the satellite network adapts at least a paging communication protocol.

15. The system of claim 13, wherein the satellite network adapts at least a paging communication frequency.

16. The system of claim 12, which includes a control station for determining where and how the paging information should be delivered.

17. The system of claim 16, wherein the control station includes a memory for storing at least information representing a preferred paging frequency for at least some of the plurality of terrestrial receivers operative on the system.

18. The system of claim 16, wherein the control station includes a memory for storing at least information representing a preferred paging protocol for at least some of the plurality of terrestrial receivers operative on the system.

19. The system of claim 16, wherein the control station determines where and how to deliver the paging information in accordance with the information stored within the memory.

20. The system of claim 16, wherein the control means includes delay means for delaying transmission of the paging information.

21. The system of claim 12, wherein the satellite based communication means includes delay means for delaying transmission of the paging information.

22. A method for providing a message to one or more areas on a celestial body, comprising the steps of:

at any terrestrial station(s);

(a) receiving the message;

(b) transmitting the message to a control station;

at the control station;

(a) receiving the message;

(b) transmitting the message to at least one satellite orbiting the celestial body;

at any satellite(s);

(a) receiving the message from the control station;

(b) determining whether to transmit the message toward the celestial body or another satellite;

(c) transmitting the message in accordance with the determination of step (b).

23. The method of claim 22, which includes the control station step of:

(a1) determining where and how to deliver the message.

24. The method of claim 23, wherein the control station step of determining where and how to deliver the message comprises the steps of:

(i) examining a memory means to extract information representing preferred message reception instructions; and

(ii) forming message delivery instructions based at least in part upon the information representing preferred message reception instructions.

25. The method of claim 24, which includes the step of calculating transmission delay times to achieve simulcast transmission.

26. The method of claim 25, which includes the step of delaying transmission for a time interval corresponding to the calculated transmission delay time.

27. The method of claim 22, wherein the satellite step of transmitting the message comprises transmitting the message to the another satellite when the message is directed toward the control station but the control station is not within the communication abilities of the satellite.

28. The method of claim 22, which includes the step of adapting the message so be compatible with the selective call receiver prior to the transmission thereof.

29. The method of claim 22, wherein step (c) further comprises the step of simulcast transmitting the message with one or more terrestrial stations.

30. The method of claim 22, wherein step (c) includes the step of delaying transmission for a time interval so as to achieve simulcast transmission with one or more terrestrial stations.