System and method for minimizing guard time in a time division duplex communication system

A system for controlling scheduling of information communication in a time division duplex communication environment, said system comprising:

• a memory storing propagation delay information for a plurality of nodes in communication with a hub;
• and
• a controller in communication with said memory and operable under control of an instruction set to determine a time slot assignment to be implemented in said time division duplex communication environment to minimize a guard time thereof through reference to said stored propagation delay information, said time slot assignment having a determination of an order of ones of said plurality of nodes to be provided communications in a communication frame, said order of ones of said plurality of nodes is determined at least in part from a hierarchy of said stored propagation delay information and from an additional communication attribute associated with at least one node,
• wherein said additional communication attribute is selected from the group consisting of a signal strength indicator, a signal to noise ratio, and a carrier to interference ratio.

A method for controlling the scheduling of information communication in a time division duplex communication environment, comprising the steps of:

• (a) storing propagation delay information with respect to a plurality of nodes in communication with a hub;
• (b) monitoring instantaneous traffic demand associated with ones of said plurality of nodes;
• and
• (c) determining a time slot assignment to be implemented in said time division duplex communication environment to minimize a guard time thereof through reference to said stored propagation delay information and said instantaneous traffic demand, comprising the steps of:
• (i) determining an order of ones of said plurality of nodes to be provided communications in a time division multiple access frame portion;
• (ii) calculating a first guard time from a propagation delay associated with a first node of said determined order;
• (iii) calculating additional guard times for each node of said plurality of nodes except said first nodes from a respective propagation delay minus any preceding burst period durations of said time division multiple access frame portion associated with other nodes of said plurality of nodes;
• and
• (iv) setting a calculated guard time to zero if the calculated guard time is negative,
• to thereby control the scheduling of information communication in a time division duplex communication environment.

A method for controlling the scheduling of information communication in a time division duplex communication environment, comprising the steps of:

• (a) storing propagation delay information with respect to a plurality of nodes in communication with a hub;
• (b) monitoring instantaneous traffic demand associated with ones of said plurality of nodes;
• (c) determining a time slot assignment to be implemented in said time division duplex communication environment to minimize a guard time thereof through reference to said stored propagation delay information and said instantaneous traffic demand;
• (d) monitoring at least one communication attribute associated with ones of said plurality of nodes, said monitored at least one communication attribute includes a communication attribute selected from the group consisting of a signal strength indicator, a signal to noise ratio, and a carrier to interference ratio;
• and
• (e) assigning at least one node of said plurality of nodes to an alternate available resource based at least in part on said at least one monitored communication attribute,
• to thereby control the scheduling of information communication in a time division duplex communication environment.

A system for providing information communication between a centralized communication system and a plurality of remote communication systems, said system comprising:

• a processor based traffic scheduler in communication with said centralized communication system and monitoring instantaneous traffic demand associated with ones of said plurality of remote communication systems, wherein said traffic scheduler determines an assignment of resources for providing said information communication between said centralized communication system and ones of said plurality of remote communication systems as a function of said monitored instantaneous traffic demand, said information communication between said centralized communication system and said ones of said plurality of remote communication systems further implements time division duplexing and wherein said guard time minimized is a guard time between a forward link and a reverse link as referenced at said centralized communication system,
• wherein said assignment of resources includes an hierarchical ordering of said ones of said remote communication systems in a time division multiple access frame utilized in providing said information communication between said centralized communication system and said ones of said plurality of remote communication systems, said ordering selected to minimize a guard time implemented in said time division multiple access frame,
• and wherein said guard time is dynamically determined through reference to a propagation delay associated with each remote communication system of said ones of said plurality of remote communication systems and said guard time is dynamically determined from the greatest of a first guard time determined from a propagation delay associated with a first remote communication system of said determined order and guard times determined from a propagation delay minus the sum of any preceding time slot durations associated with each succeeding remote communication systems of said determined order.

A system for providing information communication between a centralized communication system and a plurality of remote communication systems, said system comprising:

• a processor based traffic scheduler in communication with said centralized communication system and monitoring instantaneous traffic demand associated with ones of said plurality of remote communication systems, wherein said traffic scheduler determines an assignment of resources for providing said information communication between said centralized communication system and ones of said plurality of remote communication systems as a function of said monitored instantaneous traffic demand,
• wherein said assignment of resources includes an hierarchical ordering of said ones of said remote communication systems in a time division multiple access frame utilized in providing said information communication between said centralized communication system and said ones of said plurality of remote communication systems, said ordering based in part upon a propagation delay associated with respective ones of said plurality of remote communication systems being ordered and upon an additional communication attribute associated with said at least one remote communication system,
• wherein said additional communication attribute includes a communication quality attribute selected from the group consisting of a signal strength indicator, a signal to noise ratio, and a carrier to interference ratio.