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US 2014/0006892 A1Published application
Method and system for retransmission
AssigneeTelefonaktiebolaget L M Ericsson (publ)
InventorsJohan Torsner, Janne Peisa
Life of this patent
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Abstract
The present invention relates to retransmissions In a communications system. A method and system of reducing uplink retransmission delay of a radio communications system by introducing an uplink MAC ARQ layer of Node B is disclosed. Further, a MAC PDU data indicator for soft combining control In Node B and RLC PDU reordering is introduced.
Claims12
A method in a user equipment for reducing the impact of transmission errors by means of a retransmission protocol, the method comprising:
- assembling one or more second protocol data units into a first protocol data unit;
- transmitting the first protocol data unit to at least two base stations;
- and,
- cancelling the first protocol data unit from a buffer storing non-acknowledged protocol data units if a positive acknowledgement is received from one or more of the base stations within a predetermined time;
- or, retransmitting the first protocol data unit if no positive acknowledgement has been received for the first protocol data unit from any of the base stations within a predetermined time.
2 more elements
A user equipment adapted to reduce the impact of transmission errors by means of a retransmission protocol, comprising:
- means configured to assemble one or more second protocol data units into a first protocol data unit;
- means configured to transmit the first protocol data unit to at least two base stations;
- and,
- means configured to cancel the first protocol data unit from a buffer storing non-acknowledged protocol data units if a positive acknowledgement is received from one or more of the base stations within a predetermined time;
- or, to retransmit the first protocol data unit if no positive acknowledgement has been received for the first protocol data unit from any of the base stations within a predetermined time.
2 more elements
Dependencies are inferred from the claim text.