公开(公告)号：US10763926B2

公开(公告)日：2020-09-01

申请号：US16156800

申请日：2018-10-10

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Jun Tan ,  Eugene Visotsky ,  Fred Vook ,  Bill Hillery

IPC: H04B7/04 ,  H04B7/0456 ,  H04B7/0404

Abstract: Various communication systems may benefit from improved sounding reference symbol sounding techniques. An apparatus may comprise at least one memory comprising computer program code and at least one processor. The at least one memory and the computer program code are configured, with the at least one processor, to cause the apparatus at least to precode at least one uplink sounding reference symbol based upon at least one initial rank indicator and at least one first vector/matrix received from a network entity. The apparatus further transforms the first vector/matrix and a second vector matrix received from the network entity into a third vector/matrix based upon a final rank indicator received from the network entity. The apparatus further transmits data based upon the third vector/matrix.

公开(公告)号：US10917140B2

公开(公告)日：2021-02-09

申请号：US16150801

申请日：2018-10-03

Applicant: Nokia Technologies Oy

Inventor： Jun Tan ,  Dan Park ,  Bill Hillery

IPC: H04B7/024 ,  H04B7/06 ,  H04L5/00 ,  H04W8/24 ,  H04B7/0413

Abstract: According to an example embodiment, a method is provided including: receiving, at a user equipment from a network node, a coherence group configuration, wherein the group coherence group configuration indicates at least: one or more transmit groups, wherein each transmit group includes one or more transmit ports of the user equipment, and wherein the one or more transmit ports in each group are coherent; and one or more receive groups, wherein each receive group includes one or more receive ports of the user equipment, and wherein the one or more receive ports in each group are coherent; determining a change in the coherence group configuration; and transmitting information indicating the change to the network node.

公开(公告)号：US20200028552A1

公开(公告)日：2020-01-23

申请号：US16038675

申请日：2018-07-18

Applicant: Nokia Technologies Oy

Inventor： Rana Ahmed Salem ,  Eugene Visotsky ,  Frederick Vook ,  Bill Hillery

IPC: H04B7/0456 ,  H04B7/06 ,  H04B7/0452

Abstract: A method includes determining a number of polarizations. The method also includes determining a number of receive antennas that have a same polarization, determining a total number of receive antennas based on the number of polarizations and the number of receive antennas that have the same polarization; and applying singular value decomposition precoding on all the receive antennas with the same polarization.