Additional DMRS for NR PDSCH Considering LTE-NR DL Sharing

A mobile radio communication terminal device comprising:

• at least one receiver configured to receive a physical downlink shared channel and an associated physical downlink shared channel demodulation reference signal to be transmitted from a first mobile radio communication network according to an amended scheduling with at least one symbol of the physical downlink shared channel demodulation reference signal being shifted with respect to a scheduling of a cell-specific reference signal in case the mobile radio communication terminal device is operated during coinciding communications of the first mobile radio communication network and a second mobile radio communication network, wherein the second mobile radio communication network is configured to transmit the cell-specific reference signal;
• a memory to store the physical downlink shared channel demodulation reference signal of the first mobile radio communication network;
• and
• one or more processors to process the received physical downlink shared channel using the physical downlink shared channel demodulation reference signal transmitted from the first mobile radio communication network in order to provide a hybrid automatic repeat request acknowledgement feedback in response to the physical downlink shared channel if a corresponding minimum mobile radio communication terminal device processing time for physical downlink shared channel processing is satisfied.

A mobile radio communication device comprising:

• one or more processors to generate a physical downlink shared channel and an associated physical downlink shared channel demodulation reference signal according to an amended scheduling with at least one symbol of the physical downlink shared channel demodulation reference signal being shifted with respect to a scheduling of a cell-specific reference signal in case the mobile radio communication device is operated during coinciding communications of a first mobile radio communication network and a second mobile radio communication network, wherein the second mobile radio communication network is configured to transmit the cell-specific reference signal;
• at least one transmitter to transmit the physical downlink shared channel and the physical downlink shared channel demodulation reference signal in accordance with the amended scheduling;
• and
• one or more processors configured to indicate resources for hybrid automatic repeat request acknowledgement feedback corresponding to the transmitted physical downlink shared channel according to the amended scheduling to satisfy a corresponding minimum mobile radio communication terminal device processing time for physical downlink shared channel processing.