UPLINK GRANT MANAGEMENT FOR LTE IN UNLICENSED SPECTRUM

摘要

Systems and methods for uplink transmission scheduling are disclosed. A wireless device may monitor at least two downlink sub-frames for scheduling grants. The wireless device may receive a first uplink scheduling grant in one of the at least two downlink sub-frames for at least a first uplink sub-frame and receive a second uplink scheduling grant in another of the at least two downlink sub-frames for at least the first uplink sub-frame. The wireless device may perform an uplink transmission in the first uplink sub-frame based on one or both of the first uplink scheduling grant and the second uplink scheduling grant. For the uplink transmission, the wireless device may select a most recent uplink scheduling grant or select an uplink scheduling grant received in a downlink sub-frame at least a minimum number of sub-frames before the first uplink sub-frame.

主权项

1. A method for transmitting scheduled uplink wireless transmissions, the method comprising:
monitoring at least two downlink sub-frames for uplink scheduling grants; receiving a first uplink scheduling grant in one of the at least two downlink sub-frames for at least a first uplink sub-frame; receiving a second uplink scheduling grant in another of the at least two downlink sub-frames for at least the first uplink sub-frame; and performing an uplink transmission in the first uplink sub-frame based on one or both of the first uplink scheduling grant and the second uplink scheduling grant.