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US 2007/0165666 A1Published application
Adaptive synchronous media access protocol for shared media networks
AssigneeCopperGate Communications Ltd.
InventorsIsrael Lifshitz, Ron Sterenson, Aharona Lurie, Lior Picherski
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Abstract
In some embodiments of the present invention, asynchronous network nodes and synchronous network nodes coexist on a shared media network.
Claims18
A method comprising:
- dynamically adjusting timing of future scheduled synchronous transmissions on a shared media network to compensate for interference by asynchronous transmissions on said network.
A method comprising:
- allocating one or more timed transmission opportunities on a shared media network to a group of nodes coupled to said network, said network supporting carrier sense multiple access and collision detection techniques;
- and
- specifying a collision resolution technique to be used by colliding nodes during said timed transmission opportunities.
A method comprising:
- abandoning collision resolution between nodes colliding in their transmissions on a shared medium during a timed transmission opportunity of a specified length when not enough time is left of said transmission opportunity for a transmission by one of said nodes.
A method comprising:
- transmitting a scheduled transmission from a source synchronous node to a destination node during a timed transmission opportunity on a shared media network at a power sufficient for said destination node to receive said transmission over said network but not so high as to ensure that all nodes coupled to said network are able to sense said transmission.
A method comprising:
- during scheduled contention and non-contention transmission opportunities, listening to the medium of a shared media network for the presence of interference by asynchronous transmissions;
- transmitting once said network is idle according to an allocated transmission opportunity or until the end of a contention transmission opportunity;
- and
- resolving any collisions.
1 more element
A method for a node in a network, the method comprising:
- sensing whether said network is currently idle during a scheduled transmission opportunity;
- if said network is sensed as currently idle, initiating transmission on said network, and otherwise, waiting until said network is sensed as currently idle and then initiating transmission on said network;
- detecting whether initiating said transmission has caused a collision between said node and another node;
- and
- resolving said collision.
2 more elements
Dependencies are inferred from the claim text.