公开(公告)号：US20170295000A1

公开(公告)日：2017-10-12

申请号：US15460079

申请日：2017-03-15

Applicant: QUALCOMM INCORPORATED

Inventor： TAESANG YOO ,  ZHIFEI FAN ,  WEILIANG ZENG ,  JING SUN ,  JUAN MONTOJO

IPC: H04L5/00 ,  H04L27/26 ,  H04B17/336

CPC classification number: H04L5/0048 ,  H04B17/336 ,  H04J13/004 ,  H04L5/0007 ,  H04L5/0026 ,  H04L5/005 ,  H04L5/026 ,  H04L27/2613 ,  H04L27/2636

Abstract: Methods, systems, and devices for wireless communication are described. A base station may multiplex reference signal (RS) transmissions for different antenna ports over a set of resource elements using a code division multiplexing (CDM) group spreading in a time dimension and a frequency dimension. The base station may transmit the RS transmissions over the set of resource elements based at least in part on the multiplexing to a user equipment (UE). The UE may demultiplex the RS transmissions based at least in part on a CDM group and may select at least one of the time dimension or the frequency dimension over which to demultiplex the RS transmissions based on a determination or other information.