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US 9,871,625 B2Granted
Status reporting for retransmission protocol
AssigneeID TP Holdings, Inc.
InventorsAnna Larmo, Michael Meyer, Johan Torsner
Life of this patent
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Abstract
A method of transmitting a status report from a receiving terminal to a transmitting terminal is disclosed. A receiving terminal generates a status report according to a first retransmission protocol implemented by a higher layer protocol layer and sends the status report to a transmitting terminal in one or more data units of a lower layer protocol. If the lower layer data units are not successfully received, the lower layer protocol provides a failure indication, referred to as a local NACK, to the higher layer protocol. In response to the failure indication, the higher layer protocol generates an updated status report and sends the updated status report from the receiving terminal to the transmitting terminal.
Claims20
A method of transmitting a status report from a receiving terminal to a transmitting terminal, the method comprising:
- generating, by said receiving terminal, a status report according to a higher layer protocol;
- sending the status report from said receiving terminal to said transmitting terminal, the status report sent via one or more data units of a lower layer protocol;
- receiving, from the transmitting entity, a lower layer negative acknowledgement (NACK) for at least one of the one or more data units of the lower layer protocol that comprise the status report, the lower layer NACK indicating that the at least one of the one or more data units of the lower layer protocol that comprise the status report was not successfully received at the transmitting entity;
- providing a failure indication from the lower layer protocol to said higher layer protocol based on at least receiving the lower layer NACK from the transmitting entity, the failure indication indicating that transmission of at least one of the one or more data units of the lower layer protocol comprising the status report was unsuccessful;
- and
- in response to said failure indication, generating an updated status report at said receiving terminal and sending said updated status report from said receiving terminal to said transmitting terminal.
3 more elements
A communication terminal comprising:
- a transceiver;
- and
- a processor operatively associated with the transmitter and configured to:
- generate a status report according to a higher layer protocol;
- send the status report from the communication terminal to a transmitting terminal, the status report sent via one or data units formatted according to a lower layer protocol;
- receive, from the transmitting terminal, a lower layer negative acknowledgement (NACK) for at least one of the one or more data units of the lower layer protocol that comprise the status report, the lower layer NACK indicating that the at least one of the one or more data units of the lower layer protocol that comprise the status report was not successfully received at the transmitting entity;
- provide a failure indication from the lower layer protocol to said higher layer protocol based on at least receiving the lower layer NACK from the transmitting entity, the failure indication indicating that transmission of the one or more data units of the lower layer protocol comprising the status report was unsuccessful;
- and
- in response to said failure indication, generate an updated status report and send said updated status report from said transmitting terminal to said transmitting terminal.
6 more elements
A method of transmitting a status report from a receiving terminal to a transmitting terminal, the method comprising:
- generating, by said receiving terminal, a status report according to a higher layer protocol;
- sending the status report from said receiving terminal to said transmitting terminal, the status report sent via one or more data units of a lower layer protocol;
- receiving, from the transmitting terminal, a lower layer negative acknowledgement (NACK) for at least one of the one or more data units of the lower layer protocol that comprise the status report, the lower layer NACK indicating that the at least one of the one or more data units of the lower layer protocol that comprise the status report was not successfully received at the transmitting entity;
- providing a failure indication from the lower layer protocol to said higher layer protocol based on at least receiving the lower layer NACK from the transmitting entity, the failure indication indicating that transmission of the status report was unsuccessful;
- and
- in response to said failure indication, generating an updated status report at said receiving terminal and sending said updated status report from said receiving terminal to said transmitting terminal.
3 more elements
A communication terminal comprising:
- a transceiver;
- and
- a processor operatively associated with the transmitter and configured to:
- generate a status report according to a higher layer protocol;
- send the status report from the communication terminal to a transmitting terminal, the status report sent via one or data units formatted according to a lower layer protocol;
- receive, from the transmitting terminal, a lower layer negative acknowledgement (NACK) for at least one of the one or more data units of the lower layer protocol that comprise the status report, the lower layer NACK indicating that the at least one of the one or more data units of the lower layer protocol that comprise the status report was not successfully received at the transmitting entity;
- provide a failure indication from the lower layer protocol to said higher layer protocol based on at least receiving the lower layer NACK from the transmitting entity, the failure indication indicating that transmission of the status report was unsuccessful;
- and
- in response to said failure indication, generate an updated status report and send said updated status report from said transmitting terminal to said transmitting terminal.
6 more elements
Dependencies are inferred from the claim text.