Patent ID: 9438326
Filing Date: 2016-09-06
CPC Classification: H04B,H04J,H04L,H04W

Claim Text:
1. A method for transmitting signals by a communication apparatus in a wireless communication system, the method comprising: mapping, by the communication apparatus, a plurality of reference signals to one or more resource blocks; and transmitting, by the communication apparatus, the mapped plurality of reference signals on respective antenna ports of a first and second set of antenna ports, wherein each reference signal transmitted on the first set of antenna ports is code division multiplexed to a first group of resource elements in the one or more resource blocks by using a corresponding orthogonal sequence, wherein each reference signal transmitted on the second set of antenna ports is code division multiplexed to a second group of resource elements in the one or more resource blocks by using a corresponding orthogonal sequence, and wherein the first set of antenna ports comprises antenna ports {N, N+1, N+4, N+6} and the second set of antenna ports comprises antenna ports {N+2, N+3, N+5, N+7}.