Using cell-specific reference signals for a machine-type communication physical downlink control channel

A user equipment (UE) for wireless communication, comprising:

• a memory;
• and
• one or more processors operatively coupled to the memory, the memory and the one or more processors configured to:
• determine a relationship between a first set of antenna ports, used for demodulation reference signals (DMRS) associated with a machine-type communication physical downlink control channel (MPDCCH) and used for the MPDCCH, and a second set of antenna ports used for cell-specific reference signals (CRS);
• receive CRS on one or more antenna ports of the second set of antenna ports;
• and
• receive the MPDCCH using at least the CRS based at least in part on the relationship.

A non-transitory computer-readable medium storing one or more instructions for wireless communication, the one or more instructions comprising:

• one or more instructions that, when executed by one or more processors of a user equipment (UE), cause the one or more processors to:
• determine a relationship between a first set of antenna ports, used for demodulation reference signals (DMRS) associated with a machine-type communication physical downlink control channel (MPDCCH) and used for the MPDCCH, and a second set of antenna ports used for cell-specific reference signals (CRS);
• receive CRS on one or more antenna ports of the second set of antenna ports;
• and
• receive the MPDCCH using at least the CRS based at least in part on the relationship.

An apparatus for wireless communication, comprising:

• means for determining a relationship between a first set of antenna ports, used for demodulation reference signals (DMRS) associated with a machine-type communication physical downlink control channel (MPDCCH) and used for the MPDCCH, and a second set of antenna ports used for cell-specific reference signals (CRS);
• means for receiving CRS on one or more antenna ports of the second set of antenna ports;
• and
• means for receiving the MPDCCH using at least the CRS based at least in part on the relationship.