US Patent No. 10,485,019

UPLINK CONTROL SIGNALING FOR JOINT FDD AND TDD CARRIER AGGREGATION


Patent No. 10,485,019
Issue Date November 19, 2019
Title Uplink Control Signaling For Joint Fdd And Tdd Carrier Aggregation
Inventorship Anthony Edet Ekpenyong, Houston, TX (US)
Assignee TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)

Claim of US Patent No. 10,485,019

1. A user equipment device, comprising:a processor circuit configured to:
establish a connection to a first base station operating in a Frequency Division Duplex (FDD) mode, the first base station designated as a primary serving cell (PCell); and
establish a connection to a second base station operating in a Time Division Duplex (TDD) mode, the second base station designated as a secondary serving cell (SCell);
a receiver circuit configured to receive subframe scheduling messages from the SCell; and
a transmitter circuit configured to transmit acknowledgment messages to the PCell, the acknowledgement messages corresponding to the subframe scheduling messages received on the SCell.