Patent ID: 9648504
Date: 2017-05-09
CPC Classifications: H04B,H04W

Claim:
1. A method for transmitting data over an angular range of an array antenna in a wireless communications system, comprising: generating two parallel signals, each of the parallel signals associated with the data; forming a first subarray from a first set of array elements of an array antenna; forming a second subarray from a second set of array elements of the array antenna; selecting a first set of beamforming weights for the first subarray and a second set of beamforming weights for the second subarray, the selected beamforming weights causing a power radiation pattern of the first subarray to be complementary to a power radiation pattern of the second subarray over the angular range of the array antenna, wherein the selected beamforming weights are based at least in part on a recursive relation that includes an iterative calculation that increases a calculated number of beamforming weights from an initial set of beamforming weights to a desired number of beamforming weights, the desired number of beamforming weights being equal to a number of elements in the respective subarray; transmitting, according to the first set of beamforming weights, a first of the parallel signals over the angular range of the array antenna via the first subarray; and transmitting, according to the second set of beamforming weights, a second of the parallel signals over the angular range of the array antenna via the second subarray.