公开(公告)号：US11190321B2

公开(公告)日：2021-11-30

申请号：US16401686

申请日：2019-05-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ye Wu ,  Yong Liu ,  Xiaoyan Bi

IPC: H04W24/08 ,  H04L5/00 ,  H04B7/0456 ,  H04W72/04 ,  H04B7/04

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：US11134455B2

公开(公告)日：2021-09-28

申请号：US16186780

申请日：2018-11-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shibin Ge ,  Jin Liu ,  Xiaoyan Bi

IPC: H04W56/00 ,  H04B7/06 ,  H04W16/28 ,  H04B7/0452 ,  H04L27/26

Abstract: An embodiment of this application provides a synchronization signal transmitting method. The method includes: configuring, by a base station, one or more groups of synchronization signals, where each group of synchronization signals is mapped to N PRBs and occupies multiple symbols in time domain, and N is a positive integer greater than or equal to 1; and transmitting, by the base station, the one or more groups of synchronization signals. In comparison with the prior art, PSD of a synchronization signal can be increased, and coverage of the synchronization signal can be ensured.

公开(公告)号：US11133847B2

公开(公告)日：2021-09-28

申请号：US17094252

申请日：2020-11-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaohan Wang ,  Huangping Jin ,  Xiaoyan Bi

IPC: H04B7/02 ,  H04B7/0456 ,  H04L25/02

Abstract: This application discloses a channel estimation method and apparatus, and relates to the field of communications technologies, to help reduce indication overheads. The method may include: generating and sending indication information. The indication information indicates K N-dimensional spatial-domain component vectors, L M-dimensional frequency-domain component vectors, and a weight matrix, for constructing an M×N-dimensional spatial-frequency matrix, or an M×N or N×M spatial-frequency matrix.

公开(公告)号：US11057155B2

公开(公告)日：2021-07-06

申请号：US16671781

申请日：2019-11-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shibin Ge ,  Xiaoyan Bi ,  Hongzhe Shi

IPC: H04L1/00 ,  H04L5/00 ,  H04L27/26

Abstract: Embodiments of this application provide a data transmission method and apparatus. The method includes: transmitting indication information indicating a data distribution manner selected from a first data distribution manner and a second data distribution manner; performing data transmission with a terminal device according to the data distribution manner indicated by the indication information; wherein the data distribution manner indicating a distribution of modulation symbols of a code block (CB) on one or more orthogonal frequency division multiplexing (OFDM) symbols of at least one resource unit, the one or more OFDM symbols are consecutive in time-domain; and wherein modulation symbols distributed on a same OFDM symbol of the one or more OFDM symbols are interleaved in frequency-domain according to the first data distribution manner and are not interleaved in the frequency-domain according to the second data distribution manner.

公开(公告)号：US11057094B2

公开(公告)日：2021-07-06

申请号：US16423185

申请日：2019-05-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaoyan Bi ,  Dageng Chen ,  Jian Li

IPC: H04B7/06 ,  H04W72/04 ,  H04L5/14

Abstract: Embodiments of the present invention provide a channel state information obtaining method and a device, where the method includes: determining, by a base station according to radio resource usage, a special timeslot in a frequency range used for downlink data transmission; sending special-timeslot configuration information to user equipment, where the special-timeslot configuration information is used to configure the user equipment to send the uplink physical signal over a downlink frequency band in the special timeslot; and performing channel estimation according to the uplink physical signal after receiving the uplink physical signal sent by the user equipment, to obtain channel state information. Compared with a technical solution in the prior art in which user equipment obtains channel state information and then feeds back the channel state information to a base station, system overheads caused in obtaining, by the base station, the channel state information are reduced.

公开(公告)号：US20210204276A1

公开(公告)日：2021-07-01

申请号：US17197227

申请日：2021-03-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shibin Ge ,  Xiaohan Wang ,  Liuliu Ji ,  Haicun Hang ,  Hua Xu ,  Xiaoyan Bi

IPC: H04W72/04 ,  H04L1/18 ,  H04L5/00 ,  H04W24/10

Abstract: This application provides a UCI sending and receiving method and a communications apparatus. In the method, an association relationship between a PUCCH and a PUSCH is established, so that when resources of the PUSCH and the PUCCH overlap, a terminal device can determine UCI on which PUCCHs can be transmitted by multiplexing the resource of the PUSCH. A network device may receive the UCI on the PUSCH. Because the network device may know in advance which PUCCHs and PUSCHs are sent to the network device, the network device can demodulate and decode a signal on the received PUSCHs, to successfully obtain UCI. The network device can make a proper decision based on the UCI.

公开(公告)号：US10951372B2

公开(公告)日：2021-03-16

申请号：US16370657

申请日：2019-03-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hongzhe Shi ,  Yong Liu ,  Xiaoyan Bi

IPC: H04L12/28 ,  H04L5/00 ,  H04W72/04 ,  H04W72/12 ,  H04W88/02 ,  H04W88/08

Abstract: The present disclosure discloses a demodulation reference signal (DMRS) port configuration information obtaining method, a DMRS port configuration information delivery method, and an apparatus, and relates to the field of communications technologies, to reduce signaling overheads. The DMRS port configuration information obtaining method may include: receiving, by user equipment (UE), indication information sent by a base station, where the indication information includes overview information of DMRS ports of all UEs scheduled by the base station; and obtaining, by the UE, DMRS port configuration information of all the UEs according to a preset rule and the indication information.

公开(公告)号：US10951368B2

公开(公告)日：2021-03-16

申请号：US16680112

申请日：2019-11-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shibin Ge ,  Hongzhe Shi ,  Xiaoyan Bi

IPC: H04L5/00 ,  H04L1/00

Abstract: Embodiments of this application disclose a data processing method and an apparatus thereof. The method includes: processing, by a network device, to-be-transmitted data to obtain a data distribution manner, where the processing includes at least one of interleaving processing and mapping processing that is performed in a mapping sequence; the data distribution manner is used to indicate distribution of data from a same code block; and when the processing includes only mapping processing performed in a mapping sequence, the mapping sequence does not include a mapping sequence in which space-domain mapping is first performed, frequency-domain mapping is then performed, and time-domain mapping is finally performed; sending, the to-be-transmitted data distributed in the data distribution manner; receiving, by a terminal device, processed to-be-transmitted data; and determining, a data distribution manner, and performing de-processing on the processed to-be-transmitted data in the data distribution manner, to obtain the to-be-transmitted data.

公开(公告)号：US10819390B2

公开(公告)日：2020-10-27

申请号：US16522255

申请日：2019-07-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shibin Ge ,  Xiang Ren ,  Xiaoyan Bi

IPC: H04L5/10 ,  H04L5/00 ,  H04W72/04 ,  H04B1/7143

Abstract: This application provides a Demodulation Reference Signal (DMRS) transmission method and a communications device. The method includes: determining, by a communications device, a current mode of a resource scheduling unit, where the current mode is a frequency hopping mode or an aggregation mode, and performing, by the communications device, DMRS mapping or demapping by using a DMRS pattern corresponding to the current mode, where a location of a symbol occupied by a DMRS in the DMRS pattern corresponding to the current mode is different from a location of a symbol occupied by a DMRS in a preset DMRS pattern. In embodiments of this application, a location of a symbol occupied by a DMRS can be flexibly selected depending on different modes. Therefore, requirements of the different modes can be satisfied in the embodiments of this application, thereby improving network performance.

公开(公告)号：US10805909B2

公开(公告)日：2020-10-13

申请号：US15939009

申请日：2018-03-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jin Liu ,  Ye Wu ,  Xiaoyan Bi

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

Abstract: Embodiments of the present disclosure describe a control signaling reception method and apparatus. The method includes: receiving to-be-received control signaling using a control channel, wherein the control signaling carried on the control channel indicates operation of at least two terminal devices; and demodulating the to-be-received control signaling; wherein the control channel occupies a part of subcarriers in a system bandwidth in a frequency domain. According to the embodiments of the present disclosure, common control signaling that can indicate operation of multiple terminal devices and user dedicated control signaling that can indicate an operation behavior of only one terminal device are carried on different physical channels for transmission. In this way, different resource mapping manners and different signal processing manners can be used according to different transmission requirements, so as to optimally balance resource overheads and transmission reliability of different types of control signaling, thereby improving transmission resource use efficiency.