Channel state information determination using demodulation reference signals in advanced networks

A method, comprising:

• facilitating, by a mobile device of a communication network and to a network device of the communication network, a first transmission of first channel state information determined based on a received reference signal, the mobile device comprising a processor;
• determining, by the mobile device in temporal proximity with decoding a physical downlink shared channel, second channel state information based on a demodulation reference signal received from the network device;
• and
• facilitating, by the mobile device, a second transmission of the second channel state information to the network device, wherein the second channel state information comprises channel quality index information.

A system, comprising:

• a processor;
• and
• a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, comprising:
• receiving, from a mobile device, first channel state information for a first reference signal transmitted with a first precoding matrix;
• determining a second precoding matrix based on a multiplication of previously used precoding matrixes including the first precoding matrix;
• and
• transmitting, to the mobile device, a second reference signal with the second precoding matrix.