公开(公告)号：US10348384B1

公开(公告)日：2019-07-09

申请号：US15904325

申请日：2018-02-24

Applicant: Hong Kong Applied Science and Technology Research Institute Co., Ltd.

Inventor： Jia Ni ,  Yuxian Zhang ,  Mai Wai Kwan ,  Kong Chau Tsang

IPC: H04B7/06 ,  H04B7/0456 ,  G06F17/14

Abstract: Provided is a method of determining Channel State Information (CSI) in a multiple input/multiple output (MIMO) wireless communication system. The CSI may comprise a Precoding Matrix Indicator (PMI) and/or a Rank Indicator (RI). The method comprises, for a matrix of channels comprising a link between a gNodeB (gNB) and a user equipment (UE), determining correlation values between all Discrete Fourier Transform (DFT) vectors and the observations from the channel matrix. The DFT vectors may include the horizontal vector direction and the vertical vector direction. The method includes selecting those DFT vectors in one or more selected vector directions having a correlation value greater than a predefined threshold to thereby identify a subset of all DFT vectors and determining said CSI from the selected subset of DFT vectors.

公开(公告)号：US20180213515A1

公开(公告)日：2018-07-26

申请号：US15413662

申请日：2017-01-24

Applicant: Hong Kong Applied Science and Technology Research Institute Co., Ltd.

Inventor： Jia Ni ,  Yuxian Zhang ,  Man Wai Victor Kwan ,  Eric Kong Chau Tsang

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04L5/0053 ,  H04L5/003 ,  H04L5/0035 ,  H04L5/005 ,  H04W72/042

Abstract: Provided is a method and an apparatus for signaling allocation of resources in a joint transmission communication system. The method includes determining one of a plurality of resource allocation schemes to be implemented by two or more of a plurality of transmission points (TPs) comprising a set of coordinated TPs for enabling said two or more of said TPs to transmit data to a scheduled user equipment (UE). The method may comprise determining a bit length of a resource allocation field for a resource allocation signal message based on a number N of resource blocks groups (RBGs) related to a bandwidth of the joint transmission communication system and a number M of TPs comprising said set of coordinated TPs and further include formatting the resource allocation signal message to provide the resource allocation field based on said determined bit length. The resource allocation signal message is transmitted from only one of said set of coordinated TPs to said scheduled UE.

公开(公告)号：US10484158B2

公开(公告)日：2019-11-19

申请号：US15413662

申请日：2017-01-24

Applicant: Hong Kong Applied Science and Technology Research Institute Co., Ltd.

Inventor： Jia Ni ,  Yuxian Zhang ,  Man Wai Victor Kwan ,  Eric Kong Chau Tsang

IPC: H04L5/00 ,  H04W72/04

Abstract: Provided is a method and an apparatus for signaling allocation of resources in a joint transmission communication system. The method includes determining one of a plurality of resource allocation schemes to be implemented by two or more of a plurality of transmission points (TPs) comprising a set of coordinated TPs for enabling said two or more of said TPs to transmit data to a scheduled user equipment (UE). The method may comprise determining a bit length of a resource allocation field for a resource allocation signal message based on a number N of resource blocks groups (RBGs) related to a bandwidth of the joint transmission communication system and a number M of TPs comprising said set of coordinated TPs and further include formatting the resource allocation signal message to provide the resource allocation field based on said determined bit length. The resource allocation signal message is transmitted from only one of said set of coordinated TPs to said scheduled UE.