Patent ID: 8743813
Filing Date: 2014-06-03
Classification: H04L,H04W

Abstract:
1. A method of reference signal transmission in resource blocks (RBs) supporting multiple antenna port transmission in a wireless communication system, comprising: determining a first and a second mutually exclusive sets of RBs, at least one broadcast channel (BCH) being provided in RBs belonging to said first set of RBs; transmitting a number of reference signals (RSes) only in at least one RB belonging to said second set of RBs when a conflict between transmitting said number of RSes and providing said broadcast channel is detected, wherein each RB comprises at least one resource elements (REs); wherein the conflict between transmitting said number of RSes and providing said broadcast channel comprises: REs to be used for transmitting said number of RSes and REs used for providing said broadcast channel overlap; wherein said RBs supporting multiple antenna port transmission are transmitted in subframes (SFs) supporting multiple antenna port transmission; and wherein said number of RSes are transmitted only in a subset of subframes which do not comprise the RBs belonging to said first set of RBs, wherein said number of RSes are transmitted in a same slot of said subset of subframes, and wherein said number of RSes are transmitted in every Mth RB in said same slot, where M is an integer that is greater than or equal to one.