公开(公告)号：US20210076334A1

公开(公告)日：2021-03-11

申请号：US16951566

申请日：2020-11-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yong LIU ,  Xiang REN ,  Xiaoyan BI

IPC: H04W52/32 ,  H04W52/14

Abstract: Example communication methods and communications apparatus are described. One example method includes determining power of a demodulation reference signal (DMRS) by a terminal device. The terminal device sends the DMRS based on the determined power. In embodiments of this application, the power of the DMRS can be flexibly determined for different communication statuses.

公开(公告)号：US20200099473A1

公开(公告)日：2020-03-26

申请号：US16697115

申请日：2019-11-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei HAN ,  Yong LIU ,  Shibin GE ,  Huangping JIN ,  Xiaoyan BI ,  Xiang REN

IPC: H04L1/06 ,  H04B7/06 ,  H04L5/00

Abstract: This application configures a quantity and size of subbands in a channel state information (CSI) reporting band for flexibility and reduced complexity of terminal addressing by determining a channel state information subband size based on a bandwidth part (BWP), determining a quantity of channel state information subbands included in a channel state information reporting band based on (i) a carrier bandwidth (CC bandwidth), (ii) the BWP bandwidth or (iii) a channel state information reference signal (CSI-RS) bandwidth and the channel state information subband size. The method further includes determining an actual quantity of resource blocks included in a starting subband and an actual quantity of resource blocks in an ending subband in the channel state information subband.

公开(公告)号：US20200067751A1

公开(公告)日：2020-02-27

申请号：US16674903

申请日：2019-11-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lu WU ,  Yong LIU

IPC: H04L27/26 ,  H04L5/00 ,  H04B7/06

Abstract: Embodiments of the present disclosure disclose a reference signal pattern transmission method and an apparatus therefor. The method includes: determining, a quantity N of symbols occupied by a CSI-RS resource, and N={1, 2, 4}; obtaining, a pattern of the CSI-RS resource; and sending, configuration information to a terminal device, N=1, the pattern of the CSI-RS resource occupies one RE in time domain, and occupies at least four consecutive REs in frequency domain; or N=2, the pattern of the CSI-RS resource occupies two consecutive REs in time domain, and occupies at least two consecutive REs in frequency domain; or N=4, the pattern of the CSI-RS resource occupies four consecutive REs in time domain, and occupies at least two consecutive REs in frequency domain. According to the embodiments of the present disclosure, a design of a pattern of a channel state information-reference signal resource in a 5G system can be implemented.

公开(公告)号：US20190394781A1

公开(公告)日：2019-12-26

申请号：US16562249

申请日：2019-09-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yong LIU

IPC: H04W72/04 ,  H04L1/00 ,  H04L1/16

Abstract: This application provides a resource indication method, a terminal device, and a network device. The method includes: determining, by a network device, first indication information, and sending the first indication information to a terminal device, where the first indication information is used to indicate a time domain location occupied in a resource unit by a component pattern of a reference signal; and receiving, by the terminal device, the first indication information, and determining, based on the first indication information, the time domain location occupied in the resource unit by the reference signal. The resource indication method, the terminal device, and the network device in the embodiments of this application help implement a plurality of different mapping modes of a reference signal.

公开(公告)号：US20190386801A1

公开(公告)日：2019-12-19

申请号：US16557417

申请日：2019-08-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiang REN ,  Yong LIU ,  Shibin GE ,  Xiaoyan BI

IPC: H04L5/00 ,  H04W72/04

Abstract: This application provides a resource indication method, a terminal device, and a network device. The method includes: receiving, by the terminal device, the first indication information, and determining time domain positions of demodulation reference signals (DMRSs) based on the mapping type of the physical shared channel and with reference to a position index of the last symbol occupied by the physical shared channel or a quantity of symbols occupied by the physical shared channel in the resource unit, where the position index of the last symbol occupied by the physical shared channel in the resource unit corresponds to the first type, and the quantity of symbols occupied by the physical shared channel in the resource unit corresponds to the second type.

公开(公告)号：US20190334676A1

公开(公告)日：2019-10-31

申请号：US16505251

申请日：2019-07-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yong LIU ,  Lu WU ,  Xiaoyan BI

IPC: H04L5/00 ,  H04W72/04

Abstract: This application relates to the communications field and discloses a reference signal configuration method and apparatus, to improve accuracy of a channel estimation result in a complex and changeable scenario. The method may include: determining configuration information of a first reference signal, where the first reference signal is a reference signal corresponding to a first port that is used in one transmission process, a second port can also be used in the transmission process, and configuration information of a reference signal corresponding to the second port is different from the configuration information of the first reference signal; and configuring the first reference signal based on the configuration information of the first reference signal.

公开(公告)号：US20190327059A1

公开(公告)日：2019-10-24

申请号：US16457613

申请日：2019-06-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shibin GE ,  Yong LIU ,  Xiaoyan BI

IPC: H04L5/00 ,  H04W72/04 ,  H04B17/336

Abstract: Embodiments of the present invention disclose a reference signal sending/receiving method, a terminal device, and a network device. The terminal device determines transmit power of a reference signal of the terminal device, where the transmit power is related to a quantity of unavailable time-frequency resources in a transmission unit in which the reference signal is located; and transmits the reference signal based on the transmit power. After receiving the reference signal from the terminal device, the network device parses the reference signal based on the transmit power. The terminal device relates the transmit power of the reference signal of the terminal device to the quantity of unavailable time-frequency resources in the transmission unit in which the reference signal is located, thereby improving the transmit power of the reference signal of the terminal device in uplink MU-MIMO, and improving communication performance of the terminal device with a low signal-to-noise ratio.

公开(公告)号：US20190173559A1

公开(公告)日：2019-06-06

申请号：US16271367

申请日：2019-02-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ye WU ,  Yong LIU ,  Xiaoyan BI

IPC: H04B7/06 ,  H04B7/0452

Abstract: This disclosure includes a transmission scheme indication method, and a data transmission method, apparatus, and system, pertaining to the field of communications technologies. The transmission scheme indication method includes: generating transmission scheme indication information, where the transmission scheme indication information is used to indicate one of at least two transmission schemes included in a current transmission mode, and the at least two transmission schemes include a beamforming transmit diversity transmission scheme; and sending the transmission scheme indication information. This application resolves a problem of relatively low flexibility in UE data transmission, and improves flexibility in UE data transmission. This application is used for data transmission.

公开(公告)号：US20190173532A1

公开(公告)日：2019-06-06

申请号：US16268478

申请日：2019-02-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yong LIU ,  Xiaoyan BI

IPC: H04B7/024 ,  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：US20190158160A1

公开(公告)日：2019-05-23

申请号：US16259144

申请日：2019-01-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ye WU ,  Yong LIU ,  Xiaoyan BI

IPC: H04B7/0456 ,  H04B7/06 ,  H04L5/00

Abstract: This application provides a data sending method, a data receiving method, a data sending apparatus, and a data receiving apparatus. The method includes: precoding, by a transmit end device, a plurality of spatial flows, to obtain a plurality of precoded data streams, and transmitting the plurality of precoded data streams, where at least two spatial flows in the plurality of spatial flows are obtained by performing transmit diversity processing on one original spatial flow. In this way, some spatial flows in a plurality of spatial flows on a same time-frequency resource can be transmitted in a transmit-diversity-based beamforming transmission manner, and other spatial flows can be transmitted in a spatial multiplexing manner, thereby improving time-frequency resource utilization.