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公开(公告)号：US10979973B2
公开(公告)日：2021-04-13
申请号：US16233397
申请日：2018-12-27
摘要： A power control method and apparatus are provided. The method includes: determining, by a first station obtaining a transmission opportunity (TXOP), status indication information after determining working statuses of M second stations during the TXOP, where the status indication information is used to instruct a second station in the M second stations that needs to receive data during the TXOP to remain in a listening state, and instruct a second station in the M second stations that does not need to receive data during the TXOP to enter a sleep state; and sending, by the first station, the status indication information.
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公开(公告)号：US10887566B2
公开(公告)日：2021-01-05
申请号：US16564921
申请日：2019-09-09
发明人： Jia Jia , Jhensi Chen , Daping Chu , Jun Yao
IPC分类号： H04N9/31 , H04N13/383
摘要： An image display system is provided and includes: at least one first projection unit, configured to project rays of N images on a first plane, so that the rays of the N images are projected on N first regions of the first plane, where the N images are images of a target object photographed based on N angles, and N≥2; and at least one first refraction unit, configured on the first plane, and configured to perform refraction processing on the rays of the images projected on the first regions, so that the rays of the N images are collected on a common display region. In this way, presentation of a three-dimensional image can adapt to a human eye viewing habit.
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公开(公告)号：US20240333418A1
公开(公告)日：2024-10-03
申请号：US18624974
申请日：2024-04-02
CPC分类号： H04L1/0009 , H04L5/0053
摘要： A method includes: generating, by an access point AP, a first frame, where the first frame includes P station information fields, each of the P station information fields corresponds to one resource unit RU allocated to a first station STA, P is a positive integer greater than 1, each station information field further includes end indication information, and the end indication information is used to indicate whether the station information field is the last station information field in the P station information fields. The AP may allocate P RUs to the first STA, and indicate the P RUs to the first STA through the P station information fields in the first frame. Therefore, a resource allocation manner of the AP can be more flexible, a frequency selective gain of an OFDMA system can be effectively improved, and a system capacity can be increased.
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公开(公告)号：US11874459B2
公开(公告)日：2024-01-16
申请号：US17031472
申请日：2020-09-24
申请人： Huawei Technologies Co., Ltd. , THE CHANCELLOR, MASTERS AND SCHOLARS OF THE UNIVERSITY OF CAMBRIDGE
发明人： Tao Lin , Qing Zhang , Jia Jia , Pawan Shrestha , Matt Pryn , Daping Chu
CPC分类号： G02B27/0081 , G02B27/106 , G02B27/283 , G02B27/30 , G02F1/0136
摘要： The disclosure provides a display device for head mounting, in particular a Maxwellian display device, with an enlarged eye-box. The display device includes a light source emitting light beams for forming an image, an optical system for guiding the light beams to a beam forming element. The beam forming element is configured to converge each of multiple sets of the light beams into a different point of convergence, for example on an exit pupil of the display device. Each point of convergence is a convergent viewing point for a user. The eye-box is thus enlarged.
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公开(公告)号：US11252383B2
公开(公告)日：2022-02-15
申请号：US16659255
申请日：2019-10-21
发明人： Jhensi Chen , Jia Jia , Daping Chu , Qing Zhang , Tao Lin
IPC分类号： H04N9/31
摘要： The present invention provides a display system for displaying image data. The display system comprises a light source; a spatial light modulator including a plurality of controllable reflective elements; a light source controller, configured to control the light source to emit, in each of a plurality of time intervals, light with a different illumination power level, wherein the time intervals have the same length; and a spatial light modulator controller, configured to activate, based on received image data, the plurality of controllable elements for at least one of the time intervals for directing the light from the light source for display the image data. Accordingly, the frame rate and bandwidth of the display system are increased significantly so as to be suitable for the light filed applications.
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公开(公告)号：US10924996B2
公开(公告)日：2021-02-16
申请号：US16368903
申请日：2019-03-29
摘要： Embodiments of the present invention disclose a state switching method and apparatus. The state switching method includes: receiving, by a first network node, a preset frame sent by a second network node, where the preset frame includes indication information used to indicate an on/off state of a main transceiver and/or a wake up receiver of the first network node immediately, after a specified time point, or within a specified time period; and controlling, by the first network node based on the indication information, to switch an on/off state of the main transceiver and/or the wake up receiver of the first network node. According to the embodiments of the present invention, energy is saved by using a preset frame to indicate an on/off state of a main transceiver and/or a wake up receiver of a network node after a specified time point or within a specified time period.
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公开(公告)号：US11984972B2
公开(公告)日：2024-05-14
申请号：US17150869
申请日：2021-01-15
CPC分类号： H04L1/0009 , H04L5/0053
摘要： A method and an apparatus are provided. The method includes: generating, by an access point (AP), a first frame including P station information fields, each of which corresponds to one resource unit (RU) allocated to a first station (STA), wherein P is a positive integer greater than 1, each station information field further includes end indication information, which indicates whether the station information field is the last station information field in the P station information fields. The AP may allocate P RUs to the first STA, and indicate the P RUs to the first STA through the P station information fields in the first frame. According to the application, a resource allocation manner of the AP can be more flexible, a frequency selective gain of an OFDMA system can be effectively improved, and a system capacity can be increased.
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公开(公告)号：US11637675B2
公开(公告)日：2023-04-25
申请号：US16908262
申请日：2020-06-22
摘要： An example wake-up packet sending method includes obtaining, by a sending apparatus, a wake-up packet (WUP), where the WUP includes a preamble sequence, and sending the WUP to wake up a main receiver of a receiving apparatus. The preamble sequence includes N consecutive first sequences S, where N is an integer greater than or equal to 2 (for example, [S S]), and the N consecutive first sequences S are used to indicate that a data rate used for the WUP is a first value. Or the preamble sequence includes a second sequence M, where the second sequence M is used to indicate that a data rate used for the WUP is a second value, and the second sequence M and a first sequence S are in a bit logical negation relationship.
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公开(公告)号：US10924991B2
公开(公告)日：2021-02-16
申请号：US16423717
申请日：2019-05-28
IPC分类号： H04W28/08 , H04W40/12 , H04W40/24 , H04W48/10 , H04W48/12 , H04W48/16 , H04W48/20 , H04W52/02 , H04W74/00 , H04W74/04 , H04W84/12 , H04W88/02 , H04W88/06 , H04W88/08 , H04W88/10 , H04W92/10
摘要： Embodiments of the present application disclose a station association method and apparatus. The station association method includes: receiving a message sent by at least one access point AP, where the message carries a wake-up radio load information element, and the wake-up radio load information element includes load information of a wake-up radio channel managed by the AP; and selecting, based on the load information, a target AP from the at least one AP, so as to perform association. In the embodiments of the present application, a STA can be notified of load information of a wake-up radio channel managed by an AP, so that the STA selects an appropriate AP to perform association.
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10.发明授权公开(公告)号：US11438204B2
公开(公告)日：2022-09-06
申请号：US17164185
申请日：2021-02-01
摘要： This application provides a physical layer convergence procedure protocol data unit communication method and a related apparatus. The method includes: receiving, by a receiving apparatus, a physical layer convergence procedure protocol data unit PPDU sent by a sending apparatus, where the PPDU includes synchronization adjustment indication information and a data field, and the synchronization adjustment indication information and the data field are sent in a bandwidth less than 20 MHz; and performing, by the receiving apparatus, time synchronization and automatic gain control AGC on the data field based on the synchronization adjustment indication information. According to this solution, the receiving apparatus can perform, by using the synchronization adjustment indication information, time synchronization and automatic gain control AGC on the PPDU transmitted in a narrow bandwidth.
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