Communications systems with retransmission request budgets
AssigneeAgere Systems Inc.
InventorsGerrit Hiddink, Harald Kampen
Life of this patent
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Abstract
A media communications system using a multicasting or broadcasting technique, where each individual sink is allowed to request retransmissions according to a budget. The media communications system maintains the media quality of sinks that have a good communications channel in situations where one or more of the sinks is experiencing a bad communications channel, and where otherwise the communications channel would be saturated with retransmission requests and retransmissions which would affect other and possibly all media sinks.
Claims24
A method for managing bandwidth in a communications network having at least a first source and at least a first sink, the method comprising:
- specifying a retransmission budget for the first sink;
- determining that the first sink did not successfully receive a communication transmitted from the first source;
- and
- determining, based on the retransmission budget, whether to retransmit the communication from the first source to the first sink.
A retransmission budgeting entity (RBE) for managing bandwidth in a communications network having at least a first source and at least a first sink, the RBE adapted to specify a retransmission budget for the first sink, wherein, if the first sink does not successfully receive a communication from the first source, then the first sink receives a retransmission of the communication from the source only if the retransmission would not exceed the retransmission budget.
A first sink for a communications network having at least a first source and at least the first sink, the first sink adapted to:
- determine that the first sink did not successfully receive a communication transmitted from the first source;
- and
- receive a retransmission of the communication from the first source only if the retransmission would not exceed a specified transmission budget for the first sink.
A communications network having at least a first source and at least a first sink, wherein:
- a retransmission budget is specified for the first sink;
- and
- the first sink is adapted to determine:
- that the first sink did not successfully receive a communication transmitted from the first source;
- and
- whether to retransmit the communication from the first source to the first sink is determined based on the retransmission budget.
Dependencies are inferred from the claim text.