公开(公告)号：US10938460B2

公开(公告)日：2021-03-02

申请号：US16263984

申请日：2019-01-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Peng Shang ,  Lu Wu ,  Xiaoyan Bi

IPC: H04W4/00 ,  H04B7/06 ,  H04W72/04 ,  H04W16/28 ,  H04W24/10 ,  H04B7/0413

Abstract: The present invention discloses an inter-base station beam configuration and management method, a base station, user equipment, and a system. The method includes: receiving, by user equipment, a beam signal sent by a base station; determining, by the user equipment, a receive beam based on the sent beam signal; receiving, by the base station, a beam signal sent by a terminal device; determining, by the base station, a receive beam based on the sent beam signal; performing dynamic selection and fast beam switching between base stations in combination with a coordinated multi-point technology; and performing fast beam alignment between the base station end with the user equipment end. This application can effectively implement fast beam switching and alignment between base stations and support dynamic base station selection, thereby improving link reliability.

公开(公告)号：US10925072B2

公开(公告)日：2021-02-16

申请号：US16242941

申请日：2019-01-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hongzhe Shi ,  Yong Liu ,  Xiaoyan Bi ,  Lu Wu

IPC: H04W72/08 ,  H04L5/00 ,  H04W72/04 ,  H04B7/0452

Abstract: A method for indicating downlink control signaling and a related device are provided. The method includes: generating, by an access network device, indication information, and sending the indication information to a first terminal device by using downlink control signaling, where the indication information is used by the first terminal device to obtain information about an antenna port that is used by a second terminal device and that is corresponding to a demodulation reference signal, and the second terminal device is a terminal device currently performing spatial multiplexing together with the first terminal device. This implements interference detection performed by the first terminal device on a plurality of users.

公开(公告)号：US10855339B2

公开(公告)日：2020-12-01

申请号：US16268478

申请日：2019-02-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yong Liu ,  Xiaoyan Bi

IPC: H04B7/02 ,  H04B7/024 ,  H04B7/04 ,  H04L5/00

Abstract: An information processing method is provided and applied to a multiple-input multiple-output (MIMO) communications system, where a plurality of data demodulation reference signal ports are allocated to UE, and the method includes: obtaining, in a scheduled time-frequency resource, information about whether the plurality of data demodulation reference signal ports allocated to the UE meet a particular port relationship, where meeting the particular port relationship means that signals sent by using any ports experience same or similar large-scale properties; and sending an indication of the information about whether the particular port relationship is met, so that for at least two data demodulation reference signal ports that meet the particular port relationship, the UE performs channel estimation, frequency offset estimation, or demodulation by using same parameters.

公开(公告)号：US10813081B2

公开(公告)日：2020-10-20

申请号：US16034366

申请日：2018-07-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jin Liu ,  Haicun Hang ,  Xiaoyan Bi ,  Dageng Chen

IPC: H04W72/04 ,  H04W72/12 ,  H04L5/00 ,  H04B7/0452

Abstract: According to embodiments of the present invention, a quantity of available state values of a reference signal configuration is increased by indicating a dual-codeword transmission mode and two single-codeword transmission modes, where the two single-codeword transmission modes are distinguished by using a new data indicator NDI. Therefore, higher-rank (such as 16-layer or 24-layer) MU-MIMO can be supported, increasing system spectral efficiency significantly, and improving MU-MIMO configuration flexibility and resource scheduling effectiveness.

公开(公告)号：US20200260312A1

公开(公告)日：2020-08-13

申请号：US16832290

申请日：2020-03-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ye Wu ,  Huangping Jin ,  Xiaoyan Bi ,  Wei Han

IPC: H04W24/10 ,  H04W28/06 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/06

Abstract: Embodiments of the present invention provide a channel measurement method. The method includes: obtaining, for a to-be-measured frequency band including at least one reporting subband and at least one missing subband, channel state information of each reporting subband and channel state information of each missing subband, where the channel state information of each reporting subband is obtained based on channel estimation, and the channel state information of each missing subband is obtained according to a reference rule with reference to channel state information of a reporting subband that is indicated by the reference rule and that is in the at least one reporting subband; and sending a measurement report of the to-be-measured frequency band to a transmit end device, where the measurement report includes the channel state information of each reporting subband in the at least one reporting subband.

公开(公告)号：US10594369B2

公开(公告)日：2020-03-17

申请号：US16504354

申请日：2019-07-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wei Han ,  Huangping Jin ,  Xiaoyan Bi

IPC: H04B7/0417 ,  H04B7/06

Abstract: Embodiments of the present invention provide a channel information feedback method, a channel information determining method, a receive end device, and a transmit end device. The channel information feedback method includes: generating at least one piece of description information for each of a plurality of subbands included in a wideband, where each piece of description information is used to describe a description vector of a channel matrix corresponding to the subband, the description information includes at least one of a vector parameter and a weighting parameter; and sending the at least one piece of description information. The embodiments of the present invention further provide a channel information determining method, a receive end device, and a transmit end device. A precoding effect can be improved when precoding is performed based on the description vector fed back in the technical solutions provided in the embodiments of the present invention.

公开(公告)号：US20190260542A1

公开(公告)日：2019-08-22

申请号：US16401686

申请日：2019-05-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ye Wu ,  Yong Liu ,  Xiaoyan Bi

IPC: H04L5/00 ,  H04W72/04 ,  H04B7/0456

Abstract: A reference signal transmission method is provided, including: generating, by a network side device, a transmission unit, where the transmission unit includes a user equipment-specific demodulation reference signal UE-specific DM-RS, a time-frequency region for unicast control, and a user-specific data time-frequency region; and sending the transmission unit to user equipment, where the UE-specific DM-RS is reused or shared to demodulate the time-frequency region for unicast control and the user-specific data time-frequency region.

公开(公告)号：US20190159152A1

公开(公告)日：2019-05-23

申请号：US16256204

申请日：2019-01-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jin Liu ,  Lei Huang ,  Xiaoyan Bi ,  Huangping Jin

IPC: H04W56/00 ,  H04W72/04 ,  H04W72/02

Abstract: A synchronization processing method, including sending, in a first time unit, by a network device, a first synchronization signal having one or more first beams to a terminal device, and sending, in a second time unit, a second synchronization signal having one or more second beams to the terminal device. The first synchronization signal and the second synchronization signal cause the terminal device to determine, according to the first synchronization signal and the second synchronization signal, an optimal transmit beam of the network device for the terminal device from the one or more first beam and the one or more second beams, and further to determine a time sequence in which the optimal transmit beam is located. A time offset corresponding to each first beam and second beams is different, and is a difference between a time sequence of the beams and a time sequence of the second beams.

公开(公告)号：US10142003B2

公开(公告)日：2018-11-27

申请号：US15481845

申请日：2017-04-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoyan Bi ,  Dageng Chen

IPC: H04B7/02 ,  H04L1/02 ,  H04B7/06 ,  H04L1/06 ,  H04B7/0456 ,  H04B7/0417 ,  H04L25/02

Abstract: Embodiments of the present invention provide a precoding information obtaining apparatus. The apparatus includes: a determining module, configured to determine a transformation quantity according to a steering vector of an antenna form and a departure-angle range; a sending module, configured to send, to a terminal, information about the transformation quantity determined by the determining module, where the information about the transformation quantity is used by the terminal to determine a PMI according to the information about the transformation quantity, a codebook used for obtaining channel information, and a pilot measurement result; and a receiving module, configured to receive the PMI reported by the terminal. A network node sends a transformation quantity containing antenna information to a terminal, and the terminal feeds back a PMI according to the transformation quantity.

公开(公告)号：US20180159605A1

公开(公告)日：2018-06-07

申请号：US15883305

申请日：2018-01-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei Huang ,  Dageng Chen ,  Xiaoyan Bi

IPC: H04B7/06 ,  H04B7/0413 ,  H04L27/26

CPC classification number: H04B7/06 ,  H04B7/04 ,  H04B7/0413 ,  H04B7/0613 ,  H04L1/0041 ,  H04L1/0061 ,  H04L1/06 ,  H04L5/0023 ,  H04L27/2626

Abstract: A data processing apparatus and a data processing method are provided. The method includes inputting q data streams, where each data stream includes Msymb complex-valued modulation symbols of one code word, and q and Msymb are integers greater than or equal to 1. The method also includes determining an l×l matrix used by the Msymb complex-valued modulation symbols included in each data stream, where the l×l matrix is one of an l×l identity matrix and a circulant matrix of the l×l identity matrix, and l is a quantity of transport layers. Additionally, the method includes performing, by using the determined l×l matrix, layer permutation mapping on the Msymb complex-valued modulation symbols included in each data stream.