Method and NB-IoT device for receiving downlink physical channel on TDD special subframe

A Narrowband internet of Things (NB-IoT) device configured to receive a downlink physical channel, the NB-IoT device comprising:

• a transceiver;
• at least one processor;
• and
• at least one computer memory operably connectable to the at least one processor and storing instructions that,
• when executed by the at least one processor, perform operations comprising:
• determining whether to receive a signal of a downlink physical channel from an NB-IoT cell on a Downlink Pilot Time Slot (DwPTS) of a Time Division Duplex (TDD) special subframe;
• and
• receiving a signal of a downlink physical channel on the TDD special subframe including the DwPTS, based on the determination,
• wherein the determination by the processor is performed, based on one or more of a size of the DwPTS and an operation mode of the NB-IoT cell,
• wherein the operation mode includes one or more of stand-alone, in-band, and guard-band modes, and
• wherein based on
• (i) a signal of the downlink physical channel is received repeatedly on a plurality of subframes including the TDD special subframe, and
• (ii) one or more REs within the TDD special subframe are available for a Narrowband reference signal (NRS):
• the signal of the downlink physical channel is punctured on the corresponding RE.