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公开(公告)号：US20230059567A1
公开(公告)日：2023-02-23
申请号：US17971173
申请日：2022-10-21
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jiayin ZHANG , Chixiang MA , Jun LUO
IPC: H04W74/00
Abstract: The present disclosure relates to transmission methods and apparatuses in Wireless Local Area Networks (WLANs). One example method for indicating transmission opportunity (TXOP) duration in a wireless communication system, comprising generating, by a TXOP holder, a physical layer protocol data unit (PPDU), where the High Efficiency Signal field A (HE-SIGA) in the PPDU carries a TXOP duration field, the TXOP duration field is used to indicate the remaining time for using the channel by the station to other stations, the TXOP duration field includes a first part which is used to indicate the granularity used, and a second part which is used to indicate the TXOP duration using the granularity indicated by the first part, and sending the generated PPDU.
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公开(公告)号：US20220210694A1
公开(公告)日：2022-06-30
申请号：US17549447
申请日：2021-12-13
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jiayin ZHANG , Jun LUO , Phillip BARBER
Abstract: Embodiments of the present invention relate to the field of wireless communication, and in particular, to a wireless local area network data transmission method and apparatus, which are used for improving data transmission efficiency. The method of the embodiments of the present invention includes: carrying, by a control domain of a PLCP header domain in a PPDU constructed by an AP, identifier information of the AP, duration information, and an identifier of at least one STA, so that a STA may obtain the identifier information of the AP, the duration information, and the identifier of at least one STA by parsing only the control domain of the PLCP header domain.
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公开(公告)号：US20210359813A1
公开(公告)日：2021-11-18
申请号：US17390569
申请日：2021-07-30
Applicant: Huawei Technologies Co., Ltd.
Abstract: This application provides a signal transmission method and apparatus. The method includes: A terminal device receives configuration information of a positioning reference signal and configuration information of a first reference signal that are from a first network device and that are sent by a serving base station, where the first reference signal and the positioning reference signal are quasi-co-located QCLed; the terminal device determines, based on the configuration information of the positioning reference signal and the configuration information of the first reference signal, whether a second reference signal corresponding to the first reference signal exists; and if determining that the second reference signal exists, the terminal device receives the positioning reference signal sent by the first network device, where the positioning reference signal and the second reference signal are QCLed.
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4.发明申请公开(公告)号：US20200383098A1
公开(公告)日：2020-12-03
申请号：US16989297
申请日：2020-08-10
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Pu YUAN , Jun LUO , Zhengzheng XIANG
Abstract: In one embodiment, a method includes: sending, by a first communications device, B synchronization signal blocks to a second communications device by using A transmit beams, where each of the B synchronization signal blocks includes an identifier of the first communications device and receive beam time sequence information of the first communications device, and wherein the receive beam time sequence information indicates a time sequence location at which the first communications device receives feedback information; receiving first feedback information from the second communications device based on the time sequence location by using C receive beams; determining a first receive beam based on a receive beam that is in the C receive beams and on which the first feedback information is received; and determining a first transmit beam based on the first receive beam or the first feedback information, where the first transmit beam belongs to the A transmit beams.
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公开(公告)号：US20200322032A1
公开(公告)日：2020-10-08
申请号：US16905067
申请日：2020-06-18
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Zhengzheng XIANG , Jun LUO , Hongjia SU , Jinfang ZHANG , Lei LU
Abstract: A beam training method and a related device are disclosed. The method includes: sending, by a first communications device, sidelink control information (SCI) to a second communications device, where the SCI is used to instruct the first communications device to send at least one channel state information-reference signal (CSI-RS) to the second communications device; and sending, by the first communications device, the at least one CSI-RS to the second communications device based on the SCI, where the at least one CSI-RS is used by the second communications device to determine that a beam corresponding to a CSI-RS with highest signal strength in the at least one CSI-RS is a beam for communication between the second communications device and the first communications device. The CSI-RS used for beam training is dynamically sent based on the instruction of the SCI, and therefore, flexibility and efficiency of beam training are improved.
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Patent Agency Ranking
公开(公告)号：US20200067673A1
公开(公告)日：2020-02-27
申请号：US16673217
申请日：2019-11-04
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jun LUO , Zhengzheng XIANG , Jin LIU , Pu YUAN , Kelvin Kar Kin AU , Keyvan ZARIFI , Mohammadhadi BALIGH , Amine MAAREF
Abstract: Embodiments of the present invention provide a reference signal notification method, including: sending, by a network device, a reference signal notification message, where the reference signal notification message includes time resource information of a reference signal. According to the embodiments of the present invention, the reference signal notification message in the present invention is used to notify UE of a reference signal configuration, especially information about a CSI-RS, so that the network device can flexibly provide a reference signal, especially a CSI-RS, and the UE can more effectively receive the reference signal, especially the CSI-RS.
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公开(公告)号：US20200022185A1
公开(公告)日：2020-01-16
申请号：US16583702
申请日：2019-09-26
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jun LUO , Jiayin ZHANG , Lei HUANG
Abstract: Embodiments of this application provide a signal transmission method and a device. The method includes: performing, by a network device, idle carrier sense in a downlink beam direction when a predefined sending time of each synchronization frame in a synchronization frame set arrives, where the synchronization frame set includes N synchronization frames, and each synchronization frame includes at least one synchronization signal block; and sending a synchronization signal block to a terminal in the downlink beam direction in a synchronization frame in which idle carrier sense succeeds, where the synchronization signal block includes a synchronization signal. The network device performs idle carrier sense in the downlink beam direction when the predefined sending time of each synchronization frame arrives, and sends the synchronization signal block including the synchronization signal in the downlink beam direction in the synchronization frame in which idle carrier sense succeeds.
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公开(公告)号：US20190326968A1
公开(公告)日：2019-10-24
申请号：US16457804
申请日：2019-06-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Qiong JIA , Jun LUO , Ji WU , Yingpei LIN
Abstract: This application discloses a beam training method, a communication device, a chip system, and a storage medium. The method includes: performing, by a transmit device, clear channel assessment on sectors corresponding to an antenna of the transmit device; and sending, by the transmit device in a sector whose result of clear channel assessment is idle, a training signal to a receive device, where the training signal is used to perform beamforming training on the antenna. With this solution, beamforming training efficiency can be improved and resource utilization can be increased.
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公开(公告)号：US20190274061A1
公开(公告)日：2019-09-05
申请号：US16419674
申请日：2019-05-22
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jun LUO , Jin LIU , Pu YUAN , Kelvin Kar Kin AU , Mohammadhadi BALIGH , Amine MAAREF
Abstract: Embodiments of the present disclosure provide a signal measurement method, a network side device, and user equipment. The method includes the following steps: receiving, by user equipment, a channel state information-reference signal (CSI-RS); receiving, by the user equipment, a synchronization signal; and sending, by user equipment, a first measurement result and a second measurement result, wherein the first measurement result is obtained by measured the CSI-RS, and the second measurement result is obtained by measured the synchronization signal.
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公开(公告)号：US20190223126A1
公开(公告)日：2019-07-18
申请号：US16359601
申请日：2019-03-20
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jin LIU , Jun LUO , Yinggang DU , Hongzhe SHI
CPC classification number: H04W56/0015 , H04J11/00 , H04L1/06 , H04W16/28 , H04W56/00 , H04W72/04 , H04W74/08
Abstract: Embodiments of this application provide a synchronization processing method and apparatus, and a device. The method includes: sending, by a network device, a first synchronization signal and a second synchronization signal to a terminal device within a first time unit, where frequencies of first synchronization signals in all beams are the same, and each beam has a different difference between the frequency of the first synchronization signal and a frequency of the second synchronization signal; and determining, by the terminal device, an optimal transmit beam of the network device for the terminal device and a time sequence of the optimal transmit beam based on the first synchronization signal and the second synchronization signal. This method effectively reducing synchronization detection complexity of the terminal device.
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