1. A method for a user equipment to adjust uplink signaling overhead, the method comprising:receiving signaling that configures the user equipment with a first number of beams, N, each beam is a kth beam, d(k), that has associated a set of complex numbers and has index pair (lk, mk), each element of the set of complex numbers being characterized by at least one complex phase shift such that:
dn(k)=di(k)?i,nej2?(p?1,k+q?2,k);
dn(k), and di(k) are the ith and nth elements of d(k), respectively;
?i,n is a real number corresponding to the ith and nth elements of d(k);
p and q are integers;
beam directions ?1,k and ?2,k are real numbers corresponding to beams with index pair (lk, mk) that determine the complex phase shifts ej2??1,k and ej2??2,k respectively; and
each of the at least a co-phasing coefficient between a first and second beam of the first number of beams is a complex number ck for d(k) that is used to adjust the phase of the ith element of d(k) according to ckdi(k);
determining N power values, each power value corresponding to one of the N beams;
selecting one or more beams of the N beams to include in channel state information, CSI, based at least in part on the one or more beams having a corresponding power value above a predetermined power value; and
including the CSI in a CSI report.