Satellite cellular network resource management method and apparatus

• US 5,590,395 A
• Filed: 11/10/1993
• Issued: 12/31/1996
• Est. Priority Date: 11/10/1993
• Status: Expired due to Term

• Current Assignee: CDC Propriete Intellectuelle
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Diekelman, Dennis P.
• Primary Examiner(s): Urban, Edward F.
• Application Number:
  US08/150,702
• Time in Patent Office: 1,147 Days
• Field of Search: 455/13.1, 455/13.2, 455/13.3, 455/13.4, 455/12.1, 455/33.1, 455/62, 455/67.1, 379/59
• US Class Current: 455/13.1
• CPC Class Codes: H04B 7/18539 Arrangements for managing radio, resources, i.e. for establishing or releasing a connection

Abstract

A method for managing resource usage within a cellular communications system (10) having at least one satellite (12) and, capable of communicating with the satellite(s) (12), at least one controlling station (28) and multiple ground terminals (26). The controlling station (28) predicts (372, 380) system communication traffic and operating capabilities for a future period; generates (216) a system plan (250) and an individual operational plan (270-30n) for each satellite (12) based on the prediction; distributes (222) each individual operational plan (270-30n) to each corresponding satellite (12); monitors (226) execution of the system plan (250) during the future period to determine (228) whether the plan is operating acceptably and when the plan is not operating acceptably (228), generates (216) a new plan, or portion thereof, to alleviate the unacceptable operation; and repeats the foregoing steps for additional future periods. Each satellite (12) receives (502), stores (504), executes (224) and monitors execution (226) of its individual operational plan (270-30n) and transmits out-of-plan messages (338) to the controlling station (28) when it detects an out-of-plan condition (336).

Claims

1. A method for operating a satellite cellular communication system having multiple satellites, at least some of which are moving with respect to a surface of a celestial body, each of the satellites containing communication resources including transmitters and receivers communicating with multiple ground terminals and at least one controlling station, comprising:

a) forecasting by a first computer, communication traffic expected to pass between the ground terminals and the satellites and operating capabilities of the satellites, during a future predetermined period;

b) determining from the communication traffic and the operating capabilities, an individual operational plan for each of the satellites for managing resources on the satellites to accommodate the forecasted communication traffic during the future predetermined period;

c) transmitting to and storing within each of the satellites the individual operational plan for each of the satellites; and

d) energizing the transmitters and the receivers of each of the satellites according to the individual operational plan stored within each of the satellites in response to actual communication traffic demands during the future predetermined period.

2. The method of claim 1 wherein said forecasting step further comprises forecasting communication traffic expected to pass between the satellites during the future predetermined period.

3. The method of claim 1 wherein said determining step includes generating tables having decisional information used by each of the satellites to adaptively modify a satellite'"'"'s mode of operation during the future predetermined period based on the actual communication traffic demands and actual satellite operating capabilities during the future predetermined period, said tables comprising a part of the individual operational plan.

4. The method of claim 1 wherein said determining step comprises creating one or more sub-plans for managing each managed satellite resource, each of said sub-plans comprising an execution plan and a timed update plan, the timed update plan modifying the execution plan at pre-planned times during the future predetermined period, said sub-plans comprising a part of the individual operational plan.

5. The method of claim 1 wherein said determining step comprises determining the individual operational plan using predetermined planning constraints affecting system operation.

6. The method of claim 5 wherein said determining step comprises determining the individual operational plan using the predetermined planning constraints at least some of which vary with a satellite location above the celestial body.

7. The method of claim 1 wherein said forecasting and determining steps are performed by the at least one controlling station, the method further comprising steps of, monitoring execution of the individual operational plan within each of the satellites in response to actual operations to detect out-of-plan conditions, and when the out-of-plan conditions reach or exceed predetermined thresholds, transmitting an indication of the out-of-plan condition to the at least one controlling station.

8. The method of claim 7 wherein said storing step comprises storing the predetermined thresholds within the satellites.

9. The method of claim 7 wherein said monitoring step comprises determining when the actual operations reach a predetermined threshold, and wherein the method further comprises a step of modifying a satellite'"'"'s mode of operation so as not to exceed the predetermined threshold when said determining step determines that the actual operations have reached the predetermined threshold.

10. The method of claim 7 further comprising repeating steps a)-c) to provide an updated operational plan for at least a satellite reporting the out-of-plan condition, so as to relieve the out-of-plan condition.

11. The method of claim 10 wherein a first occurrence of step a) is based upon initial historical data and the out-of-plan condition is reported prior to an end of the future predetermined period, and a second occurrence of step a) is based on the initial historical data and the out-of-plan condition, and the second occurrence of step a) forecasts for a balance of the future predetermined period.

12. The method of claim 10 wherein a first occurrence of step a) is based upon initial historical data up to a beginning of the future predetermined period and the out-of-plan condition is reported prior to an end of the future predetermined period, and a second occurrence of step a) is based on new historical data comprising the initial historical data updated to a then current time and the out-of-plan condition, and the second occurrence of step a) forecasts for a balance of the future predetermined period.

13. The method of claim 10 wherein a first occurrence of step a) is based upon initial historical data and the out-of-plan condition is reported prior to an end of the future predetermined period, and a second occurrence of step a) is based on the initial historical data and the out-of-plan condition, and the second occurrence of step a) forecasts for a further period extending beyond the future predetermined period.

14. The method of claim 10 wherein a first occurrence of step a) is based upon initial historical data up to a beginning of the future predetermined period and the out-of-plan condition is reported prior to an end of the future predetermined period, and a second occurrence of step a) is based on new historical data comprising the initial historical data up-dated to a then current time and the out-of-plan condition, and the second occurrence of step a) forecasts for a further period extending beyond the future predetermined period.

15. The method of claim 1 wherein said forecasting and determining steps are performed by the at least one controlling station, and the method further comprises the steps of, monitoring within each of the satellites a status of available resources and satellite functionality, and transmitting said status and said satellite functionality to the at least one controlling station.

16. The method of claim 15 further comprising steps of evaluating the status and the satellite functionality to determine whether the status and the satellite functionality indicate that a future out-of-plan condition will occur within the future predetermined period, and when the status and the satellite functionality indicate that the future out-of-plan condition will occur within the future predetermined period, repeating steps a)-c) to provide an updated operational plan for at least a particular satellite reporting the status and the satellite functionality, so as to at least partially avoid the future out-of-plan condition.

17. The method of claim 1 wherein during the future predetermined period, steps a)-c) are repeated for a further period, wherein step a) is based on historical data up-dated to a then current time.

18. The method of claim 1 wherein a particular satellite further comprises one or more devices for receiving and transmitting electromagnetic energy for projecting one or more communication cells onto the surface of the celestial body, and wherein individual ground terminals located within the one or more communication cells of the particular satellite are capable of communicating with the particular satellite using multiplexed or non-multiplexed signalling channels, and wherein the determining step further comprises generating cell assignment tables having channel assignments for each of the one or more communication cells, wherein the channel assignments include information which the particular satellite will use to control operation of the one or more devices for receiving and transmitting during the future predetermined period, said cell assignment tables comprising a part of the individual operational plan.

19. The method of claim 18 wherein said determining step includes generating additional channel tables having additional channel assignments which may be allocated to a particular communication cell during the future predetermined period, based on the actual communication traffic demands in the particular communication cell, said additional channel tables comprising another part of the individual operational plan.

20. The method of claim 18 wherein said determining step comprises creating one or more sub-plans for managed satellite resources, each of the sub-plans comprising an execution plan and a timed update plan, the timed update plan modifying the execution plan at pre-planned times during the future predetermined period, said sub-plans comprising another part of the individual operational plan.

21. The method of claim 18 wherein said determining step includes generating location tables having predetermined geographical locations of a center of said one or more communication cells which the particular satellite broadcasts to the individual ground terminals, said location tables comprising another part of the individual operational plan.

22. The method of claim 18 wherein the individual ground terminals are previously assigned access priority values which are stored in the individual ground terminals and which indicate to a particular ground terminal that the particular ground terminal may access the satellite cellular communication system when the particular satellite is allowing access to a group of the individual ground terminals with the access priority values matching one or more predetermined access priority values stored in the particular satellite, and wherein said determining step includes generating tables having the one or more predetermined access priority values for each of the one or more communication cells within the particular satellite, said tables comprising another part of the individual operational plan.

23. The method of claim 18 wherein said determining step includes generating link tables having information used by the particular satellite to establish a communication link between the particular satellite and a particular individual ground terminal, said link tables comprising another part of the individual operational plan.

24. The method of claim 23 wherein said determining step further includes generating other information said particular satellite uses to slew the one or more devices for receiving and transmitting electromagnetic energy toward the particular individual ground terminal, the other information comprising a particular part of the link tables.

25. The method of claim 1 wherein said determining step occurs at least in part in an earth-based controlling station.

26. The method of claim 1 wherein a particular satellite further comprises one or more cross-link devices for receiving and transmitting electromagnetic energy for communicating with one or more neighbor satellites, and wherein each of the one or more cross-link devices is coupled to a cross-link transmitter and a cross-link receiver, and wherein said determining step comprises generating tables having routing information which tells the particular satellite to which of the one or more neighbor satellites to route a message intended for another satellite using one of the one or more cross-link devices, said tables comprising a part of the individual operational plan.

27. The method of claim 26 wherein said transmitting step includes transmitting a particular future individual operational plan intended for a first satellite from the controlling station to a second satellite wherein the transmitting step further comprises a step of routing the particular future individual operational plan by the second satellite to the first satellite according to the routing information stored in the second satellite.

28. The method of claim 1 wherein said transmitting step includes transmitting said individual operational plan intended for a first satellite from the controlling station to the first satellite when the first satellite establishes communications with the controlling station.

29. The method of claim 1 wherein said satellites further comprise at least one device for receiving and transmitting electromagnetic energy for communicating with any of multiple nearest neighbor satellites, and the determining and transmitting steps comprise determining and transmitting the individual operational plan comprising information by which an individual satellite receiving a message intended to be passed to a further satellite can determine to which of the multiple neighbor satellites the message should be passed so as to be relayed to the further satellite, and further comprising a step of energizing the at least one device for receiving and transmitting electromagnetic energy to transmit said message to a particular neighbor satellite so determined.

30. A method for operating a satellite cellular communication system having multiple satellites, at least some of which are moving with respect to a surface of a celestial body, each of the multiple satellites comprising transmitters and receivers and one or more down-link devices for receiving and transmitting electromagnetic energy, coupled to the transmitters and the receivers, for projecting one or more communication cells onto the surface of the celestial body, the satellites communicating with at least one controlling station and multiple ground terminals having one or more up-link devices for receiving and transmitting electromagnetic energy for communicating with the multiple satellites, said method comprising:

a) forecasting by a first computer, communication traffic expected to pass between the ground terminals and the satellites and operating capabilities of the satellites, during a future predetermined period;

b) determining from the communication traffic and the operating capabilities, an individual operational plan for each of the satellites to accommodate the forecasted communication traffic during the future predetermined period;

c) transmitting to and storing within each of the satellites the individual operational plan for each of the satellites; and

d) energizing the transmitters and the receivers of the satellites according to the individual operational plan in response to actual traffic demands during the future predetermined period.

31. The method of claim 30 wherein said determining step b) comprises:

b.1) forecasting forecasted system overhead traffic expected to pass between the ground terminals and the satellites during said future predetermined period;

b.2) selecting planning constraints which set limits on usage of the satellite cellular communication system;

b.3) determining, based on the forecasted communication traffic and the planning constraints, which of said one or more communication cells will be active or inactive during said future predetermined period;

b.4) for active communication cells, assigning one or more channels to the active communication cells;

b.5) selecting a strategy of routing the forecasted communication traffic and the forecasted system overhead traffic throughout the satellite cellular communication system based on results of the assigning step b.4);

b.6) determining whether the strategy accommodates the forecasted communication traffic and the forecasted system overhead traffic;

b.7) when the strategy does not accommodate the forecasted communication traffic and the forecasted system overhead traffic, selecting different planning constraints, and repeating steps b.3)-b.6); and

b.8) when the strategy accommodates the forecasted communication traffic and the forecasted system overhead traffic, developing the individual operational plan for each of the satellites, the individual operational plan comprising information which the satellites require to route data and activate said one or more communication cells in accordance with the strategy.

32. The method of claim 31 wherein the satellites further comprise one or more cross-link devices for receiving and transmitting electromagnetic energy for communicating with neighbor satellites and said determining step b) further comprises a step prior to step b.5) of planning how said one or more cross-link devices for receiving and transmitting electromagnetic energy will be used to accommodate the forecasted communication traffic and the forecasted system overhead traffic.

33. The method of claim 31 wherein said step b.3 of determining which of said one or more communication cells will be active comprises:

b.3.a) selecting a particular strategy of activating the one or more communication cells;

b.3.b) determining, based on the particular strategy of activating the communication cells, how many channels each of the one or more communication cells would require to accommodate the forecasted communication traffic;

b.3.c) allocating channels to each of the one or more communication cells based on a determination made in step b.3.b);

b.3.d) predicting an energy consumed by the satellites during the future predetermined period based on the channels allocated to each of the one or more communication cells;

b.3.e) predicting an energy available to the satellites during the future predetermined period;

b.3.f) comparing a prediction of the energy consumed with a prediction of the energy available during the future predetermined period;

b.3.g) when, during any portion of the future predetermined period, the prediction of the energy consumed will exceed the prediction of the energy available, selecting a different strategy of activating the one or more communication cells;

b.3.h) repeating steps b.3.b) through b.3.g) until a comparison between the prediction of the energy consumed and the prediction of the energy available during the future predetermined period yields a minimal difference between the prediction of the energy consumed and the prediction of the energy available; and

b.3.i) indicating which of said one or more communication cells will be active based on a final iteration of step b.3.h).

34. The method of claim 31 wherein said step b.5) of selecting the strategy of routing comprises:

b.5.a) choosing a routing strategy to accommodate the forecasted communication traffic and the forecasted system overhead traffic for the future predetermined period;

b.5.b) predicting, based on the routing strategy, predicted quantities of link traffic which will occur on cross-links and down-links;

b.5.c) comparing the predicted quantities of the link traffic with available capacities on the cross-links and the down-links during the future predetermined period;

b.5.d) when, during any portion of the future predetermined period, actual quantities of the link traffic exceed the available capacities on the cross-links and the down-links, selecting a revised routing strategy;

b.5.e) repeating steps b.5.b) through b.5.d) until a comparison between the quantities of the link traffic and the available capacities during the future predetermined period yields a minimal difference between the quantities of the link traffic and the available capacities; and

b.5.f) selecting the strategy of routing based on a final iteration of step b.5.e).

35. A cellular communication system, comprising:

multiple satellites, wherein at least one of the multiple satellites moves with respect to a surface of a celestial body, each satellite containing communication resources including one or more transmitters and one or more receivers for providing communication with at least one ground terminal, one of more receiving devices coupled to said one or more receivers, and one or more transmitting devices coupled to said one or more transmitters;

a satellite resident memory containing an individual operational plan that is based on forecasts of communication traffic expected to be received by the satellites, and operating capabilities of the satellites during a future predetermined period, said individual operational plan being provided to said satellites by a controlling station, said individual operational plan for operating the satellite for the future predetermined period, and causing the satellite to change a satellite'"'"'s mode of operation at predetermined times during the future predetermined period; and

a satellite resident controller coupled to the satellite resident memory, the one or more transmitters, and the one or more receivers, the satellite resident controller for actuating the one or more transmitters and the one or more receivers in accordance with communication traffic passing through the satellites in a manner determined by the individual operational plan.

36. The system of claim 35 further comprising:

at least one controlling station for forecasting the communication traffic expected to pass between neighbor satellites, forecasting the communication traffic expected to pass between the satellites and the at least one ground terminal, and forecasting operating capabilities of the satellites during the future predetermined period, wherein said at least one controlling station provides said individual operational plan for each satellite suitable to acceptably accommodate the forecasted communication traffic during the future predetermined period within constraints imposed by the operating capabilities of the satellites; and

a transmitter associated with the at least one controlling station for transmitting said individual operational plan to said satellites for storage in said satellite resident memory.

37. The system of claim 36 wherein the satellite resident controller determines a status of satellite resources and satellite functionality and transmits the status and the satellite functionality to said at least one controlling station.

38. The system of claim 37 wherein when said at least one controlling station determines from said status and said satellite functionality that a future out-of-plan condition will probably occur when the individual operational plan continues to be executed by a satellite reporting the status and the satellite functionality, and said controlling station provides an up-dated operational plan for at least the satellite reporting the status and the satellite functionality, so as to at least partially avoid the future out-of-plan condition.

39. The system of claim 36 wherein said at least one controlling station compares expected energy consumption within a satellite in response to the forecasted communication traffic through said satellite during the future predetermined period with expected energy generation during the future predetermined period and adjusts the individual operational plan for said satellite so that any projected energy deficit is removed.

40. The system of claim 36 wherein each satellite further comprises one or more cellular transmitters and receivers for projecting one or more communication cells onto the surface of the celestial body, and wherein a particular satellite communicates with individual ground terminals located within the one or more communication cells of the particular satellite using assigned channels, and the at least one controlling station generates the individual operational plan for each satellite having a table wherein channel assignments for each communication cell are included, the channel assignments controlling operation of the cellular transmitters and receivers associated with each communication cell during the future predetermined period.

41. The system of claim 40 wherein the satellites further comprise one or more receiving and transmitting devices for communicating with any of multiple neighbor satellites, and the individual operational plan for each satellite comprises information by which a satellite, receiving a message intended to be passed to a further satellite, can determine to which of the multiple neighbor satellites the message should be passed so as to be relayed to the further satellite.

42. The system of claim 41 wherein said at least one controlling station creates the individual operational plan comprising one or more operational sub-plans for managing each managed satellite resource, each of said operational sub-plans comprising an execution plan and a timed update plan, the timed update plan modifying the execution plan at pre-planned times during the future predetermined period.

43. The system of claim 42 wherein said at least one controlling station creates a first operational sub-plan including a routing sub-plan with which the satellite receiving the message intended to be passed to the further satellite can determine to which of the multiple neighbor satellites the message should be passed so as to be relayed to the further satellite.

44. The system of claim 42 wherein said at least one controlling station creates a second operational sub-plan including a location area code sub-plan containing geographical information indicating a center location of each particular communication cell which a satellite broadcasts to ground terminals located in each particular communication cell.

45. The system of claim 42 wherein said at least one controlling station creates a third operational sub-plan including an access priority sub-plan containing information identifying access priority numbers for each particular communication cell which the satellite will service, this information being broadcast to ground terminals within each particular communication cell such that a ground terminal within the particular cell not having said access priority numbers which the satellite will service may decide to not attempt to communicate with said satellite.

46. The system of claim 42 wherein said at least one controlling station creates a fourth operational sub-plan including an access channel sub-plan containing information identifying access channel numbers for each communication cell within a particular satellite which a ground terminal within a particular communication cell should use to access the particular satellite, this information being broadcast to ground terminals within the particular communication cell.

47. The system of claim 42 wherein said at least one controlling station creates a fifth operational sub-plan including a cell activation sub-plan which a particular satellite uses to determine when to turn each particular communication cell on or off and what particular channels to use in each particular communication cell.

48. The system of claim 42 wherein said at least one controlling station creates a sixth operational sub-plan including a cell additional channel sub-plan containing additional channel assignments which are assigned to a particular communication cell based on actual traffic demand during actual operations.

49. The system of claim 42 wherein said at least one controlling station creates a seventh operational sub-plan including a satellite-to-ground terminal link assignment sub-plan containing information that a particular satellite uses to establish a communication link with a particular ground terminal.

50. The system of claim 42 wherein said at least one controlling station creates an eighth operational sub-plan including a cross-link assignment sub-plan containing information that a particular satellite uses to establish a communication link with a particular neighbor satellite.

51. The system of claim 36 wherein said at least one controlling station creates an overall system operational plan, parses said overall system operational plan into resource sub-plans for each satellite resource to be managed, and parses resource sub-plans into the individual operational plans for each satellite.

52. The system of claim 36 wherein said at least one controlling station creates an overall system operational plan, parses the overall system operational plan into satellite sub-plans for each satellite, and parses said satellite sub-plans into the individual operational plans for each satellite resource to be managed.

53. The system of claim 35 wherein said satellite resident memory contains the individual operational plan comprising an execution plan and a timed update plan, the timed update plan modifying the execution plan at pre-planned times.

54. The system of claim 53 wherein said timed update plan in said satellite resident memory is loaded into said satellites after insertion of said satellites into orbit.

55. The system of claim 36 wherein the satellite resident controller further monitors execution of the individual operational plan within each satellite in response to actual traffic demand to detect an out-of-plan condition;

and when such out-of-plan condition exceed a predetermined threshold, actuates one of said one or more transmitters to transmit an indication of such out-of-plan condition to said controlling station.

56. The system of claim 55 wherein said at least one controlling station provides an up-dated operational plan for at least a satellite reporting the out-of-plan condition, so as to at least partially relieve the out-of-plan condition.

57. The system of claim 56 wherein said at least one controlling station provides a first operational plan based on initial historical data and the out-of-plan condition is reported by the satellite reporting the out-of-plan condition prior to an end of the future predetermined period, and said at least one controlling station provides the up-dated operational plan for a balance of the future predetermined period based on the initial historical data and the out-of-plan condition.

58. The system of claim 57 wherein said at least one controlling station forecasts the up-dated operational plan for a balance of the future predetermined period based the initial historical data, the out-of-plan condition and new historical data up-dated to a then current time.

59. The system of claim 56 wherein said at least one controlling station provides a first operational plan based on initial historical data up to a beginning of the future predetermined period and the out-of-plan condition is reported by the satellite reporting the out-of-plan condition prior to an end of the future predetermined period, and said at least one controlling station provides the up-dated operational plan for a further period different from the future predetermined period based on the initial historical data and the out-of-plan condition.

60. The system of claim 59 wherein said at least one controlling station forecasts the up-dated operational plan for a further period different from the future predetermined period based on the initial historical data, the out-of-plan condition and new historical data up-dated to a then current time.

61. A communication system of multiple satellites for placement in non-geosynchronous orbit around a celestial body, comprising satellite resources including:

one or more transmitters and receivers in the satellites for providing communication with multiple ground terminals including individual cellular radios;

one or more devices for receiving and transmitting electromagnetic energy on the satellites, coupled to the one or more transmitters and receivers;

satellite resident memory containing an individual operational plan provided to said satellites by a separate controlling station, said individual operational plan for operating each satellite for a predetermined future period, said individual operational plan being loadable into said satellite resident memory after the satellite is in orbit;

satellite resident controller coupled to the satellite resident memory and the one or more transmitters and receivers for actuating the one or more transmitters and receivers in accordance with communication traffic passing through the satellites in a manner determined by the individual operational plan stored in the satellite resident memory, wherein said individual operational plan in the satellite resident memory comprises tables having entries providing different operational rules for the satellite which vary with an orbital location of the satellite relative to the celestial body, said operational rules comprising communication channel parameters used by the transmitters and receivers on the satellite in order to transmit and receive first messages from ground terminals within a coverage footprint of at least one of the devices for receiving and transmitting electromagnetic energy.

62. The system of claim 61 wherein said individual operational plan in said satellite resident memory comprises a resource sub-plan for each managed satellite resource, each of said resource sub-plans comprising an execution plan and a timed update plan, the timed update plan modifying the execution plan at pre-planned times.

63. The system of claim 61 wherein said one or more transmitters and receivers in the satellites provides communication between neighbor satellites and the satellites further comprise at least a second device for receiving and transmitting electromagnetic energy coupled to the one or more transmitters and receivers wherein said operational rules in said satellite resident memory include routing information used by the transmitters and receivers on the satellite to exchange second messages with a particular neighbor satellite using the at least the second device for receiving and transmitting electromagnetic energy so as to route the second messages intended for a non-neighbor satellite to the particular neighbor satellite along a pre-planned route for such second messages.

64. The system of claim 63 wherein said separate controlling station comprises at least a third device for receiving and transmitting electromagnetic energy for transmitting said individual operational plan to said satellites, wherein said individual operational plan is loadable within a particular satellite when any of said satellites is capable of establishing communications with said separate controlling station and said individual operational plan is routed along the pre-planned route to said particular satellite.

65. The system of claim 61 wherein said coverage footprint comprises one or more communication cells projected onto a surface of the celestial body by the satellite.

66. The system of claim 65 wherein said operational rules in said satellite resident memory further comprise information used by the one or more transmitters on the satellite to broadcast geographical locations of a center of said communication cells to said multiple ground terminals.

67. The system of claim 65 wherein each of said multiple ground terminals are previously assigned access priority values which allow each of said multiple ground terminals to communicate with a particular satellite when the particular satellite is servicing said previously assigned access priority values and said operational rules further comprise which access priority values the particular satellite will service within each of said communication cells.

68. The system of claim 65 wherein said communication cells of said satellites are previously assigned multiple communication channels and said operational rules further comprise which of the multiple communication channels are assigned to each communication cell.

69. The system of claim 61 wherein said operational rules in said satellite resident memory further comprise information used by said satellite resident controller to establish a communication link between a particular satellite and a particular ground terminal.

70. The system of claim 69 wherein said information used by said satellite resident controller comprises information said satellite resident controller uses to slew said one or more devices for receiving and transmitting electromagnetic energy toward the particular ground terminal.

71. The system of claim 61 wherein said separate controlling station comprises at least a fourth device for receiving and transmitting electromagnetic energy for transmitting information to said satellites.

72. The system of claim 71 wherein said separate controlling station may provide said individual operational plan to a particular satellite by transmitting said individual operational plan to said particular satellite using at least the fourth device for receiving and transmitting electromagnetic energy when said particular satellite is oriented in space such that said particular satellite is capable of establishing communications with said separate controlling station.

73. The system of claim 71 wherein said separate controlling station may provide said individual operational plan to a particular satellite by transmitting said individual operational plan to any one of said satellites using at least the fourth device for receiving and transmitting electromagnetic energy when said any one of said satellites is capable of establishing communications with said separate controlling station and said individual operational plan is routed along a pre-planned route of neighbor satellites to said particular satellite.