System and method for prioritization of retransmission of protocol data units to assist radio-link-control retransmission
First Claim
1. A method for wireless communication comprising:
- storing a radio link control (RLC) protocol data unit (PDU) in a first memory buffer for transmission;
transmitting the RLC PDU;
receiving an indication that the RLC PDU was either successfully received or unsuccessfully received;
wherein on a condition that the RLC PDU was unsuccessfully received,determining a number of times that the RLC PDU was transmitted/retransmitted; and
storing the unsuccessfully received RLC PDU in a second memory buffer for retransmission such that the second memory buffer has a higher transmission priority than the first memory buffer so that the RLC PDUs in the second memory buffer are transmitted in advance of RLC PDUs stored in the first memory buffer.
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Accused Products
Abstract
A medium access control (MAC) architecture reduces transmission latency for data block retransmissions. A plurality of data blocks are received and temporarily stored in a first memory (e.g., queue, buffer). The plurality of data blocks are then transmitted. A determination is made as to whether each of the transmitted data blocks was received successfully or needs to be retransmitted because the data block was not received successfully. Each of the transmitted data blocks that needs to be retransmitted is marked and temporarily stored in a second memory having a higher priority than the first memory. The marked data blocks are retransmitted before data blocks stored in the first memory location.
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Citations
12 Claims
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1. A method for wireless communication comprising:
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storing a radio link control (RLC) protocol data unit (PDU) in a first memory buffer for transmission; transmitting the RLC PDU; receiving an indication that the RLC PDU was either successfully received or unsuccessfully received; wherein on a condition that the RLC PDU was unsuccessfully received, determining a number of times that the RLC PDU was transmitted/retransmitted; and storing the unsuccessfully received RLC PDU in a second memory buffer for retransmission such that the second memory buffer has a higher transmission priority than the first memory buffer so that the RLC PDUs in the second memory buffer are transmitted in advance of RLC PDUs stored in the first memory buffer. - View Dependent Claims (2, 3, 4, 5)
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6. A wireless transmitting device comprising:
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a transmitter configured to transmit a radio link control (RLC) protocol data unit a number of times; the transmitter configured to store the RLC protocol data unit in a first memory queue for a first transmission thereof; the transmitter configured to determine whether the RLC protocol data unit was received successfully or was not received successfully; the transmitter configured to determine the number of times the RLC protocol data unit was transmitted/retransmitted; and on a condition that the data block was not received sucessfully, the transmitter configured to store the RLC protocol data unit for retransmission in a second memory queue that has a higher transmission priority than the first memory queue such that the RLC protocol data unit is transmitted in advance of RLC protocol data units stored in the first memory queue. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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Specification