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System-and-methods-for-integrated-sharing-of-satellite-access-link-bandwidth

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System and methods for integrated sharing of satellite access link bandwidth

Details

Inventors: Natarajan, Kadathur S.;
Assignee: Motorola, Inc. (Schaumburg, IL)
Primary Examiner: Olms; Douglas W.
Assistant Examiner: Phillips; Matthew C.
Attorney, Agent or Firm: McGurk, IV; Harold C.

System (10) and methods (100) assign satellite link access bandwidth upon demand as requested by a number of subscriber units (30). After receiving the connection request, a number of time slots being requested is determined. Next, if the maximum number of available time slots is greater than or equal to the number of time slots being requested plus the number of time slots already in use, the connection request is accepted and the number of requested time slots are allocated before communication begins. Otherwise the connection request is rejected and the subscriber unit (30) must try later.

DETAILED DESCRIPTION What is claimed is: 1.
A method for assigning satellite access link bandwidth upon demand, the method comprising the steps of: a) receiving a connection request; b) determining a requested number of time slots based on a requested capacity multiplied by a frame duration, divided by a packet length; c) accepting the connection request if a maximum number of time slots is greater than or equal to the requested number of time slots plus a number of used time slots; d) allocating the requested number of time slots; and e) transmitting time slot information so that communication can begin.
2.
A method as recited in claim 1, wherein step (a) comprises the step of a satellite receiving the connection request from a subscriber unit.
3.
A method as recited in claim 1, further comprising the step of rejecting the connection request if the maximum number of time slots is less than the requested number of time slots plus the number of used time slots.
4.
A method as recited in claim 3, wherein a subscriber unit is making the connection request, and wherein the method further comprises the step of transmitting a control message to the subscriber unit if the connection request is rejected.
5.
A method as recited in claim 1, wherein step (c) comprises the step of accepting the connection request based on whether the maximum number of time slots is greater than or equal to the requested number of time slots plus a number of used time slots and priority of the connection request.
6.
A method as recited in claim 1, further comprising the step of updating the number of used time slots by the requested number of time slots.
7.
A method as recited in claim 1, wherein a subscriber unit is making the connection request to a satellite, and wherein the method further comprises the step of determining when the subscriber unit should begin transmission with the satellite.
8.
A method as recited in claim 1, wherein step (e) comprises the step of transmitting the time slot information over a control channel

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