UPLINK CHANNEL ACCESS, RESERVATION AND DATA TRANSMISSION FOR LICENSED ASSIST ACCESS LONG TERM EVOLUTION (LAA-LTE)

摘要

A mobile device obtains data to be wirelessly transmitted over a shared spectrum in an uplink channel to a base station. The uplink channel is formatted with a frame/subframe structure with a predetermined timing. The mobile device determines whether the shared spectrum is free for transmission according to a Listen Before Transmit procedure. When the shared spectrum is free for transmission, the mobile device selects a start time in the uplink channel that mitigates interference from other mobile devices in proximity to the mobile device. Beginning at the start time, the mobile device transmits the data over the shared spectrum in the uplink channel to the base station.

主权项

1. A method comprising:
at a mobile device, obtaining data to be wirelessly transmitted over a shared spectrum in an uplink channel to a base station, the uplink channel comprising a plurality of frames and subframes with a predetermined timing; determining whether the shared spectrum is free for transmission according to a listen before transmit procedure; responsive to a determination that the shared spectrum is free for transmission, selecting a start time in an uplink channel that mitigates interference from other mobile devices in proximity to the mobile device; and beginning at the start time, transmitting the data over the shared spectrum in the uplink channel to the base station.