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1. 发明公开

EP4443644A1 CABLE AND COMMUNICATION SYSTEM 审中-实审
公开(公告)号：EP4443644A1
公开(公告)日：2024-10-09
申请号：EP22914390.4
申请日：2022-12-20
申请人： Huawei Technologies Co., Ltd.
发明人： TANG, Zhaoyang , SHEN, Long , LIU, Xianglong , CHEN, Peng , SUN, Baohua , ZHOU, Gaonan , NIU, Wei
IPC分类号： H01P3/06
CPC分类号： H01Q21/00 , H01Q1/24 , H01P3/06 , H01Q23/00 , H01Q13/20
摘要： Embodiments of this application provides a cable. The cable includes a first part and a second part. The first part includes a cable core (111), a metal layer (112), and a dielectric layer (113). The metal layer (112) wraps the cable core (111), and the dielectric layer (113) is sandwiched between the cable core (111) and the metal layer (112). The second part includes a plurality of metal units (121) and a dielectric unit (122). The plurality of metal units (121) are spacedly disposed on the metal layer (112), and the dielectric unit (122) is sandwiched between the plurality of metal units (121) and the metal layer (112). The plurality of metal units are spacedly disposed on the metal layer of the cable, to reduce cable's shielding on an electromagnetic wave in a specific frequency band. The cable is placed on a radiation path of an antenna. This can reduce shielding on an electromagnetic wave radiated by the antenna, to avoid distortion of an antenna pattern.

2. 发明公开

EP4054136A1 INTERFERENCE CANCELLATION METHOD, APPARATUS, AND SYSTEM 审中-公开
公开(公告)号：EP4054136A1
公开(公告)日：2022-09-07
申请号：EP20891978.7
申请日：2020-11-18
申请人： Huawei Technologies Co., Ltd.
发明人： PAN, Dongcheng , YANG, Bo , CHEN, Peng , HU, Yinliang , YUAN, Fangchao , GU, Wei , LI, Jia Ke
IPC分类号： H04L25/03
摘要： This application provides an interference cancellation method, apparatus, and system, and belongs to the communications field. The method includes: A first device generates a first packet. The first packet includes a first group of elements, a second group of elements, and user data, and the first group of elements is different from the second groups of elements. The first device sends the first packet to a second device by using at least one pair of subcarriers. Two subcarriers in one pair of subcarriers are symmetrical with respect to a direct current subcarrier, and the first packet is used by the second device to cancel interference in the user data based on the first group of elements and the second group of elements. In this application, costs and power consumption of the devices can be reduced.

3. 发明公开

EP4024801A1 UPLINK MULTI-USER CHANNEL ESTIMATION METHOD, STATION, AND ACCESS POINT 审中-实审
公开(公告)号：EP4024801A1
公开(公告)日：2022-07-06
申请号：EP20863327.1
申请日：2020-07-27
申请人： Huawei Technologies Co., Ltd.
发明人： YUAN, Fangchao , CHEN, Peng , YANG, Bo
IPC分类号： H04L27/26
摘要： This application provides an uplink multi-station channel estimation method, a station, and an access point, which can be applied to an uplink multi-user multiple-input multiple-output scenario. The uplink multi-station channel estimation method includes: A STA generates a frame including a first group of training sequences and a second group of training sequences, and sends the frame to an AP. The AP calculates a frequency offset value between the STA and the AP based on the received first group of training sequences and the received second group of training sequences, and performs channel estimation based on the calculated frequency offset value. According to the technical solutions provided in this application, the AP can more accurately learn of frequency offset values between a plurality of STAs and the AP. This improves channel estimation precision.

4. 发明公开

EP3734917A1 DOWNLINK MESSAGE SENDING METHOD AND APPARATUS AND DOWNLINK MESSAGE FORWARDING METHOD AND APPARATUS 有权
公开(公告)号：EP3734917A1
公开(公告)日：2020-11-04
申请号：EP19882510.1
申请日：2019-10-23
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： SHEN, Li , HU, Yinliang , CHEN, Peng , FAN, Duoliang , ZHANG, Jingmin
IPC分类号： H04L12/721 , H04L12/947
摘要： This application provides a downstream packet sending method, a downstream packet forwarding method, a downstream packet sending apparatus, and a downstream packet forwarding apparatus. The downstream packet sending method in this application includes: configuring a downstream forwarding path of a downstream packet for a terminal device; generating a source MAC address based on the downstream forwarding path, where the source MAC address is used to indicate the downstream forwarding path; and sending the downstream packet to a forwarding switch, where the downstream packet includes the source MAC address. This application can reduce costs, improve efficiency, and simplify network traffic.

5. 发明公开

EP3661145A1 SYNCHRONOUS CARRIER FREQUENCY SIGNAL SENDING METHOD AND APPARATUS, AND SYNCHRONOUS CARRIER FREQUENCY SIGNAL RECEIVING METHOD AND APPARATUS 审中-公开
公开(公告)号：EP3661145A1
公开(公告)日：2020-06-03
申请号：EP19826530.8
申请日：2019-06-26
申请人： Huawei Technologies Co. Ltd.
发明人： CHEN, Guohai , LV, Yunping , YANG, Bo , CHEN, Peng
IPC分类号： H04L27/26
摘要： Embodiments of this application disclose a synchronous carrier frequency signal sending method, receiving method, and apparatus. The sending method includes: obtaining, by a first access point, synchronous carrier frequency information, where the synchronous carrier frequency information is used to set a synchronous carrier frequency channel for at least one second access point; sending, by the first access point, the synchronous carrier frequency information to the at least one second access point; generating two or more synchronous carrier frequency signals, where the synchronous carrier frequency signals are used to set a working radio frequency reference clock of the second access point, and a frequency difference between the synchronous carrier frequency signals is a fixed value; and sending, by the first access point, the synchronous carrier frequency signals on the synchronous carrier frequency channel. In this method, the second access point determines the synchronous carrier frequency channel based on the synchronous carrier frequency information, and processes received synchronous carrier frequency signals. An obtained frequency difference between the two or more synchronous carrier frequency signals is a fixed value. Therefore, same working radio frequency reference clocks are output, thereby eliminating a frequency difference between different access points.

6. 发明公开

EP4109959A1 IN-SITU FLOW TESTING METHOD AND DEVICE 审中-实审
公开(公告)号：EP4109959A1
公开(公告)日：2022-12-28
申请号：EP21767643.6
申请日：2021-03-05
申请人： Huawei Technologies Co., Ltd.
发明人： SHU, Qinghui , HUANG, Jinming , ZHOU, Tianran , CHEN, Peng , GUO, Songsong , LI, Xiangzhen , TANG, Yan , ZHENG, Chengcong
IPC分类号： H04W24/08
摘要： Embodiments of this application disclose an in-situ flow detection method. When determining a transmission delay in a detection domain in a first in-situ flow detection period, a first network node may color a plurality of packets in a first service flow that are received by the first network node through a first inbound interface, and determine the delay in the detection domain in the first in-situ flow detection period based on the plurality of colored packets. In the manner of coloring a plurality of packets, even if packet loss occurs on one or more of the packets, the transmission delay in the detection domain in the first in-situ flow detection period may be determined based on another packet on which no packet loss occurs. In addition, determining the transmission delay in the detection domain in the first in-situ flow detection period based on a plurality of packets has higher precision than determining the transmission delay in the detection domain in the first in-situ flow detection period based on one packet. In conclusion, using the solutions provided in embodiments of this application can improve the precision of the detected transmission delay in the detection domain.

7. 发明公开

EP4145891A1 CHANNEL MEASUREMENT METHOD AND COMMUNICATION DEVICE 审中-实审转让
公开(公告)号：EP4145891A1
公开(公告)日：2023-03-08
申请号：EP21811932.9
申请日：2021-04-28
申请人： Huawei Technologies Co., Ltd.
发明人： PAN, Dongcheng , YANG, Bo , CHEN, Peng , HU, Yinliang , FENG, Bing
IPC分类号： H04W24/08
摘要： This application discloses a channel sounding method and a communication apparatus. The method includes: A first access point performs channel sounding on a channel sounding frame sent by a first station, and sends a user association frame to a second access point. The second access point determines, based on identification information of the first station in the user association frame, a first channel sounding result that matches the first station from a plurality of second channel sounding results. The first station is associated with the first access point, and is not associated with the second access point. The plurality of second channel sounding results are obtained by the second access point by performing sounding on a plurality of channel sounding frames from a plurality of stations. In the method, the first access point may notify the second access point of the identification information of the first station, so that the second access point can determine the first channel sounding result. In other words, channel sounding is performed across access points, so that a plurality of intra-frequency deployed access points can concurrently send data, and a data transmission rate in an entire network is improved.

8. 发明公开

EP4358583A1 CHANNEL ACCESS METHOD AND APPARATUS 审中-实审
公开(公告)号：EP4358583A1
公开(公告)日：2024-04-24
申请号：EP22841284.7
申请日：2022-07-08
申请人： Huawei Technologies Co., Ltd.
发明人： YANG, Bo , CHEN, Zheng , CHEN, Peng
IPC分类号： H04W28/16
CPC分类号： H04W28/24 , H04W28/16 , H04W74/08
摘要： Embodiments of this application disclose a channel access method and apparatus. The method includes: A first device determines a first frame, where the first frame includes first indication information, the first indication information indicates a first AP in at least one access point AP to perform contention access for a first traffic in a first slot, and the first traffic includes a traffic for which channel access is performed by using a priority interframe space PIFS; and the first device sends the first frame to the first AP. According to embodiments of this application, contention and a collision with another AP in a channel access process are avoided, to improve quality of service of a traffic.

9. 发明公开

EP4178314A1 RESPONSE FRAME REPLYING METHOD AND APPARATUS, AND ACCESS POINT SYSTEM 审中-实审
公开(公告)号：EP4178314A1
公开(公告)日：2023-05-10
申请号：EP21851261.4
申请日：2021-07-22
申请人： Huawei Technologies Co., Ltd.
发明人： WANG, Shengsen , NI, Yizhan , CHEN, Peng
IPC分类号： H04W80/00 , H04W88/08
摘要： A method for replying with a response frame, an apparatus, and an AP system are disclosed. A radio frequency processing device receives a PPDU sent by an STA. The radio frequency processing device sends, to a baseband processing device by using a wired medium, a frame obtained based on the PPDU. The radio frequency processing device and the baseband processing device are remotely separated. In response to a target signal that is received by using the wired medium and that is from the baseband processing device, the radio frequency processing device generates a target field, and sends the target field to an air interface. The target field at least includes a first field of a response frame of the PPDU. The target signal is used to indicate the radio frequency processing device to immediately respond to the PPDU. The baseband processing device modulates the target signal for transmission on the wired medium, to indicate the radio frequency processing device to immediately respond to the PPDU. After receiving the target signal, the radio frequency processing device immediately generates the target field of the response frame, and sends the target field to the air interface. A delay of this process is relatively low, so that an overall delay of replying with the response frame by the AP system is relatively low.

10. 发明公开

EP4145865A1 CHANNEL MEASUREMENT METHOD AND COMMUNICATION DEVICE 审中-实审
公开(公告)号：EP4145865A1
公开(公告)日：2023-03-08
申请号：EP21812025.1
申请日：2021-04-28
申请人： Huawei Technologies Co., Ltd.
发明人： PAN, Dongcheng , CHEN, Peng , YANG, Bo , HU, Yinliang , WANG, Junhui
IPC分类号： H04W4/02 , H04W12/06
摘要： This application discloses a channel sounding method and a communication apparatus. The method includes: A first access point receives a channel transfer command frame from a controller or a central access point, and sends a channel transfer frame to a second access point based on the channel transfer command frame. The channel transfer command frame indicates the first access point to send a channel sounding result of at least one station to the second access point. The channel transfer command frame includes a first sounding dialog token number. The channel transfer frame carries a channel sounding result corresponding to a first sounding dialog token in channel sounding results of a plurality of stations. In the method, the at least one station is associated with the first access point. After receiving the channel transfer command frame, the first access point forwards the channel sounding result of the at least one station to the second access point. In this way, channel sounding is performed across access points, so that a plurality of intra-frequency deployed access points can concurrently send data, and a data transmission rate in an entire wireless network is improved.

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