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公开(公告)号：US11882598B2
公开(公告)日：2024-01-23
申请号：US17241395
申请日：2021-04-27
发明人： Kai Ying Lu , Yongho Seok , Chao-Chun Wang , Jianhan Liu , James Chih-Shi Yee , Thomas Edward Pare, Jr.
CPC分类号： H04W74/0816 , H04L1/0069 , H04W24/08
摘要： An apparatus (e.g., an access point (AP)) announces to one or more stations (STAs), in a frame, one or more preamble detection (PD) channels in a frequency segment such that each of the one or more STAs monitors a respective one of the one or more PD channels to detect any transmission on the one or more PD channels. The apparatus then wirelessly communicates with at least one of the one or more STAs on one of the one or more PD channels during a transmission opportunity (TXOP).
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公开(公告)号：US20230043239A1
公开(公告)日：2023-02-09
申请号：US17972085
申请日：2022-10-24
发明人： Kaiying Lu , Yongho Seok , James Chih-Shi Yee , Chao-Chun Wang , Jianhan Liu , Thomas Edward Pare, JR.
摘要： An apparatus (e.g., an access point (AP) establishes a plurality of links comprising a primary link and at least a secondary link. The apparatus transmits a management frame on the primary link to indicate a multi-link capability of the AP. The apparatus configures the secondary link for one or more non-AP stations (STAs), which are capable of operating on the primary link and the secondary link, with multi-link capability and operating parameters through an association procedure on the primary link.
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公开(公告)号：US11516841B2
公开(公告)日：2022-11-29
申请号：US17010137
申请日：2020-09-02
发明人： Kaiying Lu , Yongho Seok , James Chih-Shi Yee , Chao-Chun Wang , Jianhan Liu , Thomas Edward Pare, Jr.
摘要： An apparatus (e.g., an access point (AP) establishes a plurality of links comprising a primary link and at least a secondary link. The apparatus transmits a management frame on the primary link to indicate a multi-link capability of the AP. The apparatus configures the secondary link for one or more non-AP stations (STAs), which are capable of operating on the primary link and the secondary link, with multi-link capability and operating parameters through an association procedure on the primary link.
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4.发明授权公开(公告)号：US11432326B2
公开(公告)日：2022-08-30
申请号：US17072027
申请日：2020-10-15
摘要： An apparatus capable of multi-link operations with respect to a first link and a second link obtains a second transmission opportunity (TXOP) on the second link after one other apparatus has started a first TXOP on the first link. The apparatus performs one or more transmissions during the second TXOP on the second link such that the second TXOP is at least partially synchronized with the first TXOP on the first link.
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公开(公告)号：US20190274166A1
公开(公告)日：2019-09-05
申请号：US16284426
申请日：2019-02-25
发明人： Yongho SEOK , Chao-Chun Wang , James Chih-Shi YEE
摘要： System and method of using an AP to individually controlling RTS/CTS duration thresholds for multiple STAs in a WLAN. In response to a STA's association request, the AP determines a duration threshold specific to the STA and encloses this information in an association response for transmission to the STA. By using a broadcast frame, the AP may instruct multiple STAs to uniformly update their stored duration thresholds. For example, if the duration threshold field in the beacon frame is set to 0, the multiple STAs preserve their current duration thresholds; if the field is set to a non-zero value less than 1023, the multiple STAs all update their duration thresholds to the non-zero value; if this field is set to 1023, the multiple STAs disable the RTS/CTS transmissions based on the duration threshold. Based on a current threshold and pertinent policies, an STA can decide whether to initiate an RTS/CTS transmission sequence.
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公开(公告)号：US20190069213A1
公开(公告)日：2019-02-28
申请号：US16115552
申请日：2018-08-28
发明人： Yongho Seok , Chao-Chun Wang , Chih-Shi Yee
摘要： A method and apparatus for supporting A-MSDU data transfer in an A-MPDU system includes sending capability information from a first network device, receiving onto the first network device an A-MPDU frame that includes A-MSDU data, and sending an acknowledgment from the first network device. A bit field in the capability information indicates if inclusion of A-MSDU data in an A-MPDU payload is supported. The first network device is a wireless station (STA). The first network device is part of a peer-to-peer network. The A-MSDU is in a data enabled immediate response context. A bit field in the capability information indicates if receiving an A-MPDU frame including A-MSDU data carried in a QoS Data frame without a block acknowledgment agreement is supported.
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公开(公告)号：US10135565B2
公开(公告)日：2018-11-20
申请号：US15146995
申请日：2016-05-05
摘要： A novel feedback schemes are introduced to assistant link adaptation for re-transmissions and to improve the network throughput and efficiency. When reception failure is a type B failure, then a failure report (FR) frame is feedback from the destination STA to the source STA. In the failure report frame, link adaptation information and information on failure causes are included.
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公开(公告)号：US10038543B2
公开(公告)日：2018-07-31
申请号：US14788752
申请日：2015-06-30
发明人： Chao-Chun Wang , Jianhan Liu , Tianyu Wu , Rongsheng Huang
IPC分类号： H04L5/00 , H04B7/0452 , H04W74/08
CPC分类号： H04L5/0073 , H04B7/0452 , H04L5/0023 , H04W74/0816
摘要： Methods and apparatus are provided for a many to one communication protocol. In one novel aspect, a modified CTS is sent by a receiving wireless communications station in response to a regular RTS. The modified CTS includes an indication for an uplink MU operation. In one embodiment, a modified CTS indicates a restricted access window (RAW) followed by RAW parameter set (RPS). In one embodiment, a subset of wireless communications devices associated with the receiving wireless communications station sends modified PS-poll with uplink data indication. Such PS-poll traffic is protected from passerby wireless communications devices from an OBSS. The receiving wireless communications station sends a modified resource-allocation map frame followed by a regular CTS frame. The subsets of wireless communications devices send their uplink data based on the received resource allocation map. The RTS-originating wireless station either sends its data frame earlier or concurrently with other wireless communications devices.
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9.发明授权公开(公告)号：US09883547B2
公开(公告)日：2018-01-30
申请号：US15409957
申请日：2017-01-19
发明人： Chao-Chun Wang , Jianhan Liu , Chih-Shi Yee , Huanchun Ye , James June-Ming Wang
摘要： A communication method that operates by determining a first set of physical parameters of a first channel by a coordinator in a wireless communication system; establishing communication with a first set of devices over the first channel; determining a protection period in accordance with a pre-determined rule; broadcasting a channel-adjustment message, wherein the channel-adjustment message comprises a set of instructions for indicating how to adjust from the first channel to a second channel, and the set of instructions comprise channel bandwidth information for indicating how to adjust to a bandwidth of the second channel and central frequency information for indicating how to adjust to a central frequency of the second channel; and communicating with a second set of devices over the second channel during the protection period.
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10.发明授权Beam-change indication for channel estimation improvement in wireless networks 有权无线网络中信道估计改进的波束改变指示公开(公告)号：US09319896B2
公开(公告)日：2016-04-19
申请号：US13875461
申请日：2013-05-02
CPC分类号： H04B7/0626 , H04B7/0413 , H04B7/0617 , H04B7/0619 , H04B7/0695 , H04L5/0048 , H04L25/0204 , H04L25/0228 , H04L2025/03783 , H04W24/02
摘要： A method of channel estimation enhancement is provided. In a wireless communications system, a transmitting device transmits a long preamble frame comprising a first training field, a signal field, and a second training field. The signal field has a beam-change indicator bit indicates whether there is beam change between the first training field and the second training field. A receiving device receives the long preamble frame, performs a first channel estimation based on the first training field, and performs a second channel estimation based on the second training field. If the beam-change indicator bit indicates negative beam change, then the receiving device performs channel estimation enhancement by combining the first channel estimation and the second channel estimation. As a result, channel estimation performance is improved.
摘要翻译： 提供了一种信道估计增强的方法。 在无线通信系统中，发送装置发送包括第一训练场，信号场和第二训练场的长前同步码帧。 信号域具有波束变化指示符位，指示在第一训练场和第二训练场之间是否存在波束变化。 接收装置接收长前同步码帧，基于第一训练场进行第一信道估计，并且基于第二训练场进行第二信道估计。 如果波束变化指示符位指示负波束变化，则接收设备通过组合第一信道估计和第二信道估计来执行信道估计增强。 结果，提高了信道估计性能。
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