18890975. Uplink Data Reception via Unlicensed Cell (Ofinno, LLC)
Uplink Data Reception via Unlicensed Cell
Organization Name
Inventor(s)
Esmael Hejazi Dinan of McLean VA (US)
Alireza Babaei of Fairfax VA (US)
Uplink Data Reception via Unlicensed Cell
This abstract first appeared for US patent application 18890975 titled 'Uplink Data Reception via Unlicensed Cell
Original Abstract Submitted
A base station transmits a downlink control information (DCI) to a wireless device. The DCI comprises: an indication of resource blocks for wireless device transmission of uplink data via a subframe of an unlicensed cell; a first field comprising an index indicating a starting position for the wireless device transmission of the uplink data; and a second field indicating an ending symbol for the wireless device transmission of the uplink data, the ending symbol being one of pre-configured ending symbols. The base station receives the uplink data, via the unlicensed cell, starting at the starting position in the subframe and ending before the ending symbol. The uplink data is received based on a listen-before-talk procedure indicating a clear channel before the starting position. The uplink data is mapped to resource elements corresponding to the resource blocks based at least on the starting position and the ending symbol.