公开(公告)号：US20190149263A1

公开(公告)日：2019-05-16

申请号：US16305949

申请日：2016-05-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chen DONG ,  Xiaodong SUN ,  Yanliang SUN ,  Jian WANG

IPC: H04L1/00 ,  H04L5/00 ,  H04L27/34

Abstract: Embodiments of the present invention provide a method for determining a transmission rate supported by a data stream, user equipment, and a base station. The method includes: determining, by user equipment UE, a first index corresponding to an average transmission rate supported by a channel between the UE and the base station; determining, by the UE, a second index corresponding to a difference between an instantaneous transmission rate supported by a data stream on the channel and an average transmission rate supported by the data stream on the channel; sending, by the UE, the first index to the base station; and sending, by the UE, the second index to the base station. According to the embodiments of the present invention, the instantaneous transmission rate supported by the data stream on the channel can be relatively accurately fed back to the base station, thereby improving channel resource utilization.

公开(公告)号：US20180249379A1

公开(公告)日：2018-08-30

申请号：US15758465

申请日：2015-09-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yanliang SUN ,  Da WANG ,  Jian WANG ,  Bin LIU

IPC: H04W28/22 ,  H04W72/04 ,  H04L5/00 ,  H04L25/02 ,  H04W28/24

CPC classification number: H04W28/22 ,  H04B7/0626 ,  H04L5/0048 ,  H04L25/0202 ,  H04W16/02 ,  H04W28/24 ,  H04W72/0406 ,  H04W72/085 ,  H04W88/04

Abstract: According to example data transmission methods and related devices provided in the present disclosure, a base station receives first channel state information (CSI) and an indication message that are sent by a first terminal, and may determine a size of a downlink transmission data block from the base station to the first terminal according to the first CSI and the indication message. In doing so, a downlink transmission rate from the base station to the first terminal matches a downlink transmission rate from the first terminal to a second terminal.

公开(公告)号：US20200220590A1

公开(公告)日：2020-07-09

申请号：US16623291

申请日：2017-08-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yanliang SUN

IPC: H04B7/0456 ,  H04L27/26 ,  H04L25/02 ,  H04L5/00 ,  H04B7/06

Abstract: This application provides an NR uplink codebook configuration method and a related device. The method may include: receiving, by a network device, reference transmission unit configuration information reported by a terminal, where the reference transmission unit configuration information includes: a quantity N of transmission units of the terminal, a quantity M of groups into which the N transmission units are divided, and a quantity of transmission units included in each group; determining transmission port configuration information of the terminal based on the reference transmission unit configuration information; receiving reference codebook configuration information reported by the terminal; determining a codebook type of the terminal based on the reference codebook configuration information; and sending the transmission port configuration information and the codebook type to the terminal. In this application, two-stage codebooks or single codebooks adapted to different antenna array forms on a terminal side in an NR scenario can be designed.

公开(公告)号：US20200274604A1

公开(公告)日：2020-08-27

申请号：US16461315

申请日：2018-04-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yanliang SUN ,  Kai XU

IPC: H04B7/06

Abstract: One example method includes receiving, by a terminal, indication information sent by a base station, where the indication information indicates a precoding matrix in a first precoding matrix set and a transmission rank corresponding to the precoding matrix, and the precoding matrix is used to precode transmit data streams at r transmission layers to obtain signals to be sent on N transmission ports of the terminal; and when r>1, a nonscalar part of a precoding matrix whose transmission rank is r in the first precoding matrix set is obtained by combining columns in nonscalar parts of r precoding matrices, and the r precoding matrices are precoding matrices selected from all precoding matrices whose transmission ranks are 1; and determining, by the terminal based on the indication information, the precoding matrix for precoding the transmit data streams.

公开(公告)号：US20190044782A1

公开(公告)日：2019-02-07

申请号：US16075429

申请日：2016-02-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yongbo ZENG ,  Yanliang SUN ,  Guorong LI ,  Yu CAI

IPC: H04L27/26 ,  H04W74/08 ,  H04L5/00 ,  H04W72/04 ,  H04W8/22

Abstract: Embodiments of the present invention provide an uplink subcarrier spacing indication method, a base station, and a terminal. The base station determines indication information that is used to indicate a first uplink subcarrier spacing supported by the base station, and communicates with the terminal according to the indication information. During the communication, the base station indicates the first uplink subcarrier spacing supported by the base station to the terminal, so that the terminal subsequently determines, based on the first uplink subcarrier spacing, a second uplink subcarrier spacing supported by the terminal; or the base station receives information that is sent by the terminal and that carries a second uplink subcarrier spacing, in other words, receives an indication from the terminal, so as to learn of the second uplink subcarrier spacing supported by the terminal or to be used by the terminal to send an uplink signal.