Interleaved beam sweeping for synchronization and random access procedures

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:
• transmit a first plurality of synchronization signals in a first set of beam directions during a first symbol period of a synchronization subframe;
• and
• transmit a second plurality of synchronization signals in a second set of beam directions during a second symbol period of the synchronization subframe, the second set of beam directions spatially interleaved with the first set of beam directions, and the first symbol period preceding the second symbol period in the synchronization subframe.

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:
• monitor a first set of beam directions during a first symbol period of a random access subframe;
• and
• monitor a second set of beam directions during a second symbol period of the random access subframe, the second set of beam directions spatially interleaved with the first set of beam directions.