HARQ handling at inter-beam handover
AssigneeQUALCOMM Incorporated
InventorsJelena Damnjanovic, Gene Wesley Marsh, Mario Maro Scipione, Qiang Wu
Life of this patent
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Abstract
A method and apparatus for operating a controller for a satellite communications system during inter-beam handovers. In some aspects, the controller may perform an inter-beam handover by switching communications with a user terminal from a first beam to a second beam of a satellite. The controller receives a feedback message form the user terminal, via the first beam, after the inter-beam handover is completed, and may then selectively retransmit data to the user terminal via the second beam based at least in part on the feedback message.
Claims50
A method of operating a controller for a satellite communications system, the method comprising:
- performing an inter-beam handover by switching communications with a user terminal from a first beam to a second beam of a satellite;
- receiving a feedback message from the user terminal, via the first beam, after the inter-beam handover is completed;
- and
- selectively retransmitting data to the user terminal via the second beam based at least in part on the feedback message received on the first beam after the inter-beam handover.
A controller for a satellite communications system, the controller comprising:
- one or more processors;
- and
- a memory configured to store instructions that, when executed by the one or more processors, cause the controller to:
- perform an inter-beam handover by switching communications with a user terminal from a first beam to a second beam of a satellite;
- receive a feedback message from the user terminal, via the first beam, after the inter-beam handover is completed;
- and
- selectively retransmit data to the user terminal via the second beam based at least in part on the feedback message received on the first beam after the inter-beam handover.
A controller for a satellite communications system, the controller comprising:
- means for performing an inter-beam handover by switching communications with a user terminal from a first beam to a second beam of a satellite;
- means for receiving a feedback message from the user terminal, via the first beam, after the inter-beam handover is completed;
- and
- means for selectively retransmitting data to the user terminal via the second beam based at least in part on the feedback message received on the first beam after the inter-beam handover.
A non-transitory computer-readable medium storing instructions that, when executed by one or more processors of a controller for a satellite communications system, cause the controller to perform operations comprising:
- performing an inter-beam handover by switching communications with a user terminal from a first beam to a second beam of a satellite;
- receiving a feedback message from the user terminal, via the first beam, after the inter-beam handover is completed;
- and
- selectively retransmitting data to the user terminal via the second beam based at least in part on the feedback message received on the first beam after the inter-beam handover.
A method of operating a user terminal in a satellite communications system, the method comprising:
- transmitting a feedback message to a controller of the satellite communications system, via a first beam of a satellite, to request retransmission of a first set of data previously received by the user terminal;
- performing an inter-beam handover by switching communications with the controller from the first beam to a second beam of the satellite;
- and
- receiving a retransmission of the first set of data via the second beam based at least in part on the feedback message transmitted on the first beam prior to the inter-beam handover.
A user terminal, comprising:
- one or more processors;
- and
- a memory configured to store instructions that, when executed by the one or more processors, cause the user terminal to:
- transmit a feedback message to a controller of a satellite communications system, via a first beam of a satellite, to request retransmission of a first set of data previously received by the user terminal;
- perform an inter-beam handover by switching communications with the controller from the first beam to a second beam of the satellite;
- and
- receive a retransmission of the first set of data via the second beam based at least in part on the feedback message transmitted on the first beam prior to the inter-beam handover.
A user terminal, comprising:
- means for transmitting a feedback message to a controller of a satellite communications system, via a first beam of a satellite, to request retransmission of a first set of data previously received by the user terminal;
- means for performing an inter-beam handover by switching communications with the controller from the first beam to a second beam of the satellite;
- and
- means for receiving a retransmission of the first set of data via the second beam based at least in part on the feedback message transmitted on the first beam prior to the inter-beam handover.
A non-transitory computer-readable medium storing instructions that, when executed by one or more processors of a user terminal, cause the user terminal to perform operations comprising:
- transmitting a feedback message to a controller of a satellite communications system, via a first beam of a satellite, to request retransmission of a first set of data previously received by the user terminal;
- performing an inter-beam handover by switching communications with the controller from the first beam to a second beam of the satellite;
- and
- receiving a retransmission of the first set of data via the second beam based at least in part on the feedback message transmitted on the first beam prior to the inter-beam handover.
Dependencies are inferred from the claim text.