Uniformly distributed control burst structure for the uplink of a processing satellite communication system
First Claim
1. A method of providing synchronization and control access to a plurality of user terminals transmitting on an uplink in a satellite communication system, the method comprising:
- establishing a superframe comprising a predetermined number of individual frames;
determining a total number of individual control time slots;
establishing a constant-size control burst field in each of said individual frames;
establishing a constant-size traffic burst field in each of said individual frames; and
distributing said total number of control time slots among said individual frames by subdividing each of said control burst fields into a plurality of individual control time slots.
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Abstract
The present invention provides an uplink frame structure in a satellite communications system, and a method for providing control access to a plurality of user terminals transmitting the inventively structured uplink frames. The uplink frame structure comprises a superframe which includes a predetermined number of individual frames. Each individual frame comprises a traffic burst field and a control burst field, where the control burst fields may be located at the same position within each frame. Each control burst field further comprises several individual control time slots. The individual control time slots may include, for example, timing probes and orderwire information.
13 Citations
17 Claims
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1. A method of providing synchronization and control access to a plurality of user terminals transmitting on an uplink in a satellite communication system, the method comprising:
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establishing a superframe comprising a predetermined number of individual frames;
determining a total number of individual control time slots;
establishing a constant-size control burst field in each of said individual frames;
establishing a constant-size traffic burst field in each of said individual frames; and
distributing said total number of control time slots among said individual frames by subdividing each of said control burst fields into a plurality of individual control time slots. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An uplink frame structure in a satellite communication system, the frame structure comprising:
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a superframe comprising a predetermined number of individual frames, each of said individual frames comprising a traffic burst field and a control burst field, and each of said control burst fields comprising a plurality of individual control time slots, wherein each of said control burst fields is of constant size, wherein each of said traffic burst fields is of constant size. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A method for synchronizing a plurality of user terminals transmitting on an uplink in a satellite communications system, the method comprising:
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determining a total number of individual control time slots; and
distributing said total number of control time slots through a plurality of frames to create a regular synchronization structure across a superframe, said total number of individual control time slots greater in number than said plurality of frames, wherein said control time slots are included in a plurality of control burst fields and each of said control burst fields is of constant size, wherein each of said plurality of frames in said superframe also includes a traffic burst field and each traffic burst field is of constant size. - View Dependent Claims (15, 16, 17)
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Specification