公开(公告)号：US11716780B2

公开(公告)日：2023-08-01

申请号：US17322330

申请日：2021-05-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ngoc Dung Dao ,  Xu Li

IPC: H04W76/20 ,  H04W76/40 ,  H04W76/34 ,  H04W36/00 ,  H04W76/22 ,  H04W72/23 ,  H04W68/00 ,  H04W24/04

CPC classification number: H04W76/20 ,  H04W36/0007 ,  H04W72/23 ,  H04W76/22 ,  H04W76/34 ,  H04W76/40 ,  H04W24/04 ,  H04W68/00

Abstract: Methods and Systems for modifying or releasing a Multicast/Broadcast (MB) session for delivery of MB Data to a plurality of Electronic Devices (EDs) connected to a (Radio) Access Network (R)AN node is disclosed. The method includes receiving one or more triggers, and instructing the various network functions and (R)AN nodes to modify (or release) the MB session dependent on the received trigger.

公开(公告)号：US20230188148A1

公开(公告)日：2023-06-15

申请号：US18167594

申请日：2023-02-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhiqiang Yun ,  Xiaowen Dong ,  Jinfeng Mu ,  Xu Li

IPC: H03M1/08

CPC classification number: H03M1/08

Abstract: A signal folding device receives an input signal, and performs frequency modulation on a plurality of first analog signals based on the input signal to obtain a plurality of modulated first analog signals, where a frequency difference between two adjacent first analog signals in the plurality of modulated first analog signals is the same. The signal folding device may filter the plurality of modulated first analog signals based on a specified bandwidth to obtain a second analog signal, and demodulate the second analog signal to obtain an output signal. The output signal is a folded signal of the input signal within a target amplitude, and the second analog signal is an analog signal within the bandwidth.

公开(公告)号：US20230084731A1

公开(公告)日：2023-03-16

申请号：US17986406

申请日：2022-11-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xu Li ,  Jingjing Huang ,  Junping Zhang

IPC: H04L27/26 ,  H04L5/00

Abstract: This application provides a signal transmission method and apparatus. The method includes: obtaining, by a transmitter side, a first signal with N points; performing signal separation on the first signal with N points, to obtain two groups of signals (for example, a second signal with N points and a third signal with N points); combining the two groups of signals obtained through separation, to obtain a to-be-sent signal with 3N/2 points; and sending the signal with 3N/2 points to a receiver side, to enable the receiver to restore the first signal with N points from the received signal with 3N/2 points.

公开(公告)号：US20230078953A1

公开(公告)日：2023-03-16

申请号：US17986492

申请日：2022-11-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xu Li ,  Jingjing Huang ,  Jiajin Luo

IPC: H04B10/116 ,  H04B10/516

Abstract: This application provides a signal transmission method and apparatus. The method includes: obtaining, by a transmitter side, a first signal with N points; performing signal separation on the first signal with N points, to obtain two groups of signals (for example, a second signal with N points and a third signal with N points); determining four signals with N/2 points based on the two groups of signals obtained through separation, and combining the four signals with N/2 points, to obtain a to-be-sent signal with 3N/2 points; and sending the signal with 3N/2 points to a receiver side, to enable the receiver to restore the first signal with N points from the received signal with 3N/2 points.

公开(公告)号：US20230006741A1

公开(公告)日：2023-01-05

申请号：US17942278

申请日：2022-09-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yibo Lv ,  Xu Li ,  Tianxiang Wang ,  Weiwei Zhang ,  Rongdao Yu

IPC: H04B10/2575 ,  H04B10/2543 ,  H04J14/02

Abstract: A radio over fiber (RoF) system and a nonlinear compensation method, where the RoF system includes a BBU and an RRU, the RRU includes an electrical component, and the BBU includes a downlink and a feedback link. A predistortion module and an optical component are disposed on the downlink, an input end of the feedback link is connected to an output end of the optical component, and the feedback link is configured to feed back, to the predistortion module, a nonlinear signal output by the optical component. The RoF system further includes a temperature detection module configured to detect a temperature value of the electrical component, and transmit the temperature value to the predistortion module. The predistortion module is configured to perform digital predistortion DPD on a baseband signal based on the temperature value and the nonlinear signal.

公开(公告)号：US11483680B2

公开(公告)日：2022-10-25

申请号：US17176727

申请日：2021-02-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ngoc Dung Dao ,  Xu Li

IPC: H04W4/06 ,  H04W76/40 ,  H04W28/04 ,  H04L9/40 ,  H04W12/06 ,  H04L67/147 ,  H04L12/18 ,  H04W12/03 ,  H04W12/04 ,  H04W12/76

Abstract: A method of MB delivery of Downlink (DL) MB Data to a plurality of Electronic Devices (EDs) connected to a (Radio) Access Network (R)AN node, the method comprises: storing the DL MB Data in a buffer of the (R)AN node; and transmitting, by the (R)AN node, the DL MB Data to the plurality of EDs.

公开(公告)号：US11418413B2

公开(公告)日：2022-08-16

申请号：US17478261

申请日：2021-09-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ngoc Dung Dao ,  Xu Li

IPC: H04L41/5009 ,  H04L41/50 ,  H04W24/08 ,  H04L43/0817 ,  H04L67/1097 ,  H04L43/04

Abstract: A method and system of unifying data transmission and storage in a communication network are provided. The method comprises determining, by a coordinator associated with a network data analytics function (NWDAF) service instance set, what data that more than one NWDAF service instances in the NWDAF service instance set requires, if the data required by the more than one NWDAF service instances is the same, requesting, by the coordinator associated with the NWDAF service instance set, the data from a network function service instance set, and receiving the data from a data storage function that is notified by the network function service instance set of the request from the coordinator associated with the NWDAF service instance set.

公开(公告)号：US11239870B2

公开(公告)日：2022-02-01

申请号：US17321287

申请日：2021-05-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yibo Lv ,  Xu Li ,  Guangjian Wang ,  Jingjing Huang

IPC: H04B1/04 ,  H04B7/06 ,  H04B7/0413

Abstract: This application relates to the field of communications technologies and discloses a transmitter device and a signal processing method. m transmit antenna groups of the transmitter are configured to send m training signals under control of the processor. A target feedback antenna of the transmitter is configured to receive, under control of the processor, a first mixed signal obtained by superimposing the m training signals in space, where a phase difference between the first mixed signal and a second mixed signal obtained by superimposing in space the m training signals received by a receiver device falls within a preset range. A processor of the transmitter is configured to: perform DPD parameter estimation and pre-distortion processing on a to-be-sent signal. The m transmit antenna groups are further configured to send, under control of the processor, the to-be-sent signal on which pre-distortion processing has been performed.

公开(公告)号：US11153929B2

公开(公告)日：2021-10-19

申请号：US16898211

申请日：2020-06-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ngoc Dung Dao ,  Hang Zhang ,  Xu Li

IPC: H04W76/30 ,  H04W76/34 ,  H04W76/27 ,  H04W76/10 ,  H04L29/08 ,  H04W36/14 ,  H04W36/00 ,  H04W88/14 ,  H04W24/10 ,  H04W80/10 ,  H04W28/24

Abstract: A network architecture and methods of managing packet data unit (PDU) sessions in a network are provided. The methods include PDU session establishment procedures, PDU session modification procedures, PDU session state transfer procedures, PDU session release procedures, and user equipment (UE) handover procedures.

公开(公告)号：US20210273667A1

公开(公告)日：2021-09-02

申请号：US17321287

申请日：2021-05-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yibo Lv ,  Xu Li ,  Guangjian Wang ,  Jingjing Huang

IPC: H04B1/04 ,  H04B7/06

Abstract: This application relates to the field of communications technologies and discloses a transmitter device and a signal processing method. m transmit antenna groups of the transmitter are configured to send m training signals under control of the processor. A target feedback antenna of the transmitter is configured to receive, under control of the processor, a first mixed signal obtained by superimposing the m training signals in space, where a phase difference between the first mixed signal and a second mixed signal obtained by superimposing in space the m training signals received by a receiver device falls within a preset range. A processor of the transmitter is configured to: perform DPD parameter estimation and pre-distortion processing on a to-be-sent signal. The m transmit antenna groups are further configured to send, under control of the processor, the to-be-sent signal on which pre-distortion processing has been performed.