Joint channel and phase noise estimation in control symbols of a millimeter wave link

An apparatus for wireless communication, comprising:

• a control tone module for inserting control tones at a plurality of subcarriers of a control symbol at a first periodicity;
• a pilot tone module for inserting a pilot tone at a second periodicity in a second subcarrier of the control symbol, the pilot tone being offset from each of the control tones in the control symbol by one or more intervening subcarriers;
• and
• a transmitter for transmitting at least two control symbols in a sub-frame.

An apparatus for wireless communication, comprising:

• a processor;
• memory in electronic communication with the processor;
• and
• instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to:
• insert control tones at a plurality of subcarriers of a control symbol at a first periodicity;
• insert a pilot tone at a second periodicity in a second subcarrier of the control symbol, the pilot tone being offset from each of the control tones in the control symbol by one or more intervening subcarriers;
• and
• transmit at least two control symbols in a sub-frame.

A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable to:

• insert control tones at a plurality of subcarriers of a control symbol at a first periodicity;
• insert a pilot tone at a second periodicity in a second subcarrier of the control symbol, the pilot tone being offset from each of the control tones in the control symbol by one or more intervening subcarriers;
• and
• transmit at least two control symbols in a sub-frame.

An apparatus for wireless communication, comprising:

• a processor;
• memory in electronic communication with the processor;
• and
• instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to:
• receive at least two control symbols in a sub-frame, at least one of the control symbols comprising control tones at a plurality of subcarriers at a first periodicity, and a pilot tone at a second periodicity, the pilot tone being offset from each of the control tones in at least one of the control symbols by one or more intervening subcarriers;
• and
• perform a phase noise estimation and a channel estimation from the pilot tone.