公开(公告)号：US20180205440A1

公开(公告)日：2018-07-19

申请号：US15861406

申请日：2018-01-03

Applicant: Nokia Technologies Oy

Inventor： Mihai ENESCU ,  Yi ZHANG ,  Deshan MIAO ,  Yuantao ZHANG

IPC: H04B7/06 ,  H04B7/0417

CPC classification number: H04B7/0626 ,  H04B7/0417 ,  H04B7/066 ,  H04B7/0695 ,  H04B7/088 ,  H04W72/0413 ,  H04W72/042

Abstract: A method is provided including transmitting a reference signal on a downlink beam to a UE; receiving from the UE a reference signal sequence; determining from the received reference signal sequence at least a preferred uplink beam to pair with the downlink beam; sending downlink signaling to the UE on at least the downlink beam; and receiving uplink signaling from the UE on at least the preferred uplink beam. A further method is provided including receiving a reference signal from a network on a downlink beam; selecting at least one preferred uplink beam to match the downlink beam; selecting a reference signal sequence that corresponds to the selected at least one preferred uplink beam; transmitting the selected reference signal sequence to the network; receiving downlink signaling from the network on at least the downlink beam; and transmitting uplink signaling to the network on the at least one preferred uplink beam.