Radio link control with limited retransmissions for streaming services
First Claim
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1. A method for a radio link control (RLC) protocol that allows at least partial recovery of a streaming service over a wireless communication channel, comprising the steps of:
- determining a play out time for each RLC block as a function of block size, play out rate and allowed delay for each transmission;
aborting recovery for a RLC block if said RLC block is not received by a respective play out time thereof; and
receiving and recovering said RLC block that is received by the respective play out time thereof.
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Abstract
In a mobile station-mobile receiver arrangement a method and apparatus for a radio link control (RLC) protocol that allows partial recovery of data for streaming services. The maximum number of retransmissions allowed by the method for each RLC block is a function of the maximum delivery delay required by the streaming service and the round trip delay.
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Citations
24 Claims
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1. A method for a radio link control (RLC) protocol that allows at least partial recovery of a streaming service over a wireless communication channel, comprising the steps of:
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determining a play out time for each RLC block as a function of block size, play out rate and allowed delay for each transmission;
aborting recovery for a RLC block if said RLC block is not received by a respective play out time thereof; and
receiving and recovering said RLC block that is received by the respective play out time thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 24)
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13. A method for a radio link control (RLC) protocol for at least partial recovery of lost or corrupted data in a streaming data based service for use in wireless telephony, comprising the steps of:
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determining a maximum number of retransmissions for each RLC block of data from a maximum delivery delay of the service and a round trip delay between two wireless stations;
during an initial transmission of a first RLC block of data, transmitting a first plurality of copies of said RLG block of data;
said copies are not identical since each of said plurality of copies is derived from a different puncturing of said RLC block of data; and
during each subsequent retransmission, transmitting a second plurality of copies of said RLC block of data such that said second plurality of copies is selected to maximize the streaming data rate within data loss and data delay constraints.
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23. A system for a radio link control (RLC) protocol for at least partial recovery of lost or corrupted data in a streaming data based service for use in wireless communication, comprising:
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means for determining a maximum number of retransmissions for each RLC block of data from a maximum delivery delay of the service and a round trip delay between a base station and a remote station, said determining means being located at said base station;
first means for transmitting a first plurality of copies of said RLG block of data during an initial transmission of a first RLC block of data, said first transmitting means being located also at said base station, said copies being non-identical since each of said plurality of copies is derived from a different puncturing of said RLC block of data; and
second means for transmitting a second plurality of copies of said RLC block of data during each subsequent retransmission, said second transmitting means being located also at said base station, wherein said second plurality of copies is selected to maximize a streaming data rate while operating within data loss and data delay constraints.
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Specification