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公开(公告)号：US20160014595A1
公开(公告)日：2016-01-14
申请号：US14794011
申请日：2015-07-08
Applicant: Apple Inc.
Inventor： Chiu Ngok E. Wong , Christiaan A. Hartman , Zheng Zeng , Joonsuk Kim , Su Khiong Yong , Yong Liu
Abstract: Embodiments described herein relate to a system and method for providing flexible receiver configuration in wireless communication systems, such as 802.11 WLAN systems. In one embodiment, a wireless device may transmit a first data frame including first configuration information specifying a first configuration of the receiver to notify a remote device that the wireless device intends to configure its receiver according to the first configuration. After receiving an acknowledgement frame confirming the first configuration information, the wireless device may configure the receiver according to the first configuration. In another embodiment, a wireless device may receive a first data frame including first configuration information and further including a request that the wireless device configure its receiver according to the first configuration. In response, the wireless device may configure the receiver according to the first configuration. In either case, the wireless device may receive subsequent communications according to the first configuration.
Abstract translation: 本文描述的实施例涉及用于在诸如802.11 WLAN系统的无线通信系统中提供灵活的接收机配置的系统和方法。 在一个实施例中，无线设备可以发送包括指定接收机的第一配置的第一配置信息的第一数据帧，以通知远程设备，根据第一配置，无线设备旨在配置其接收机。 在接收到确认第一配置信息的确认帧之后，无线设备可以根据第一配置来配置接收机。 在另一个实施例中，无线设备可以接收包括第一配置信息的第一数据帧，并且还包括无线设备根据第一配置配置其接收机的请求。 作为响应，无线设备可以根据第一配置来配置接收机。 在任一情况下，无线设备可以根据第一配置接收后续通信。
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公开(公告)号：US20150071142A1
公开(公告)日：2015-03-12
申请号：US14138659
申请日：2013-12-23
Applicant: Apple Inc.
Inventor： Joonsuk Kim , Syed A. Mujtaba , Xiaowen Wang
IPC: H04W52/02
CPC classification number: H04W52/0238 , Y02D70/00 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/144
Abstract: In order to reduce power consumption of an electronic device during communication with another electronic device in a wireless local area network (WEAN), the electronic device analyzes fields in a given packet prior to a payload of the given packet to look for information that specifies a destination of the given packet. For example, the information may include: a full associated identification (AID) of the destination, a partial media-access-control (MAC) address of the destination; and/or a compressed (MAC) address of the destination. The information may be included in the preamble of the given packet. In particular, the information may replace length information in a high-throughput signal field in the given packet. Moreover, if the destination is other than the electronic device, the electronic device dumps the given packet and changes a power state of the electronic device, thereby reducing the power consumption.
Abstract translation: 为了在与无线局域网（WEAN）中的另一电子设备通信期间减少电子设备的功耗，电子设备在给定分组的有效载荷之前分析给定分组中的字段，以查找指定 给定包的目的地。 例如，信息可以包括：目的地的完全相关联的标识（AID），目的地的部分媒体访问控制（MAC）地址; 和/或目的地的压缩（MAC）地址。 信息可以被包括在给定分组的前导码中。 具体地，该信息可以替代给定分组中的高吞吐量信号字段中的长度信息。 此外，如果目的地不是电子设备，则电子设备转储给定分组并改变电子设备的功率状态，从而降低功耗。
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公开(公告)号：US20220132301A1
公开(公告)日：2022-04-28
申请号：US17571304
申请日：2022-01-07
Applicant: Apple Inc.
Inventor： Chiu Ngok E. Wong , Christiaan A. Hartman , Zheng Zeng , Joonsuk Kim , Su Khiong Yong , Yong Liu
Abstract: Embodiments described herein relate to a system and method for providing flexible receiver configuration in wireless communication systems, such as 802.11 WLAN systems. In one embodiment, a wireless device may transmit a first data frame including first configuration information specifying a first configuration of the receiver to notify a remote device that the wireless device intends to configure its receiver according to the first configuration. After receiving an acknowledgement frame confirming the first configuration information, the wireless device may configure the receiver according to the first configuration. In another embodiment, a wireless device may receive a first data frame including first configuration information and further including a request that the wireless device configure its receiver according to the first configuration. In response, the wireless device may configure the receiver according to the first configuration. In either case, the wireless device may receive subsequent communications according to the first configuration.
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公开(公告)号：US10986571B2
公开(公告)日：2021-04-20
申请号：US16135378
申请日：2018-09-19
Applicant: Apple Inc.
Inventor： Chiu Ngok E. Wong , Syed A. Mujtaba , Christiaan A. Hartman , Joonsuk Kim
Abstract: A station (STA) of a wireless local area network (WLAN) transitions implicitly between power management (PM) modes or PM states, without providing an explicit indication of the PM mode/state change to an access point (AP) of the WLAN. Transitions include changes between an active mode and a power save (PS) mode, or between an awake state and a doze state of the PS mode. Transitions occur immediately after receipt of a beacon indicating pending data for the STA, after an offset time indicated in the beacon, or at a specific wake time negotiated with the AP. After data reception is complete, the STA transitions implicitly to the PS mode or a doze state of the PS mode, after a power save inactivity timeout period or after receiving an indication that data transmission is complete.
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公开(公告)号：US10708915B2
公开(公告)日：2020-07-07
申请号：US15147365
申请日：2016-05-05
Applicant: Apple Inc.
Inventor： Joonsuk Kim , Guoqing Li , Syed Aon Mujtaba
Abstract: Systems and methods of providing control information to wireless devices accessing a wireless network are provided. According to some embodiments, a method of wireless communication is provided. According to the method, a first wireless communication channel is assigned to a first wireless device. A second wireless communication channel is assigned to a second wireless device. A third wireless communication channel is designated for use as a control channel that is common to the first and second wireless devices and control information is transmitted to the first and second wireless devices via the third wireless communication channel.
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Patent Agency Ranking
公开(公告)号：US10681632B2
公开(公告)日：2020-06-09
申请号：US16012969
申请日：2018-06-20
Applicant: APPLE INC.
Inventor： Harish Ramamurthy , Joonsuk Kim , Yong Liu , Christopher Hansen
Abstract: A station, a method performed by a station and a corresponding method performed by an access point (AP) of a network to allow the station to operate a wireless local area network (WLAN) radio in a sleep state until the WLAN radio is ready to receive a beacon from the AP. The station includes a low power (LP) radio configured to receive a wake up signal from an AP of a network to which the station is connected. The station further includes a WLAN radio configured to operate in a sleep state until the WLAN radio receives an indication from the LP radio that the wakeup signal has been received, wherein WLAN radio is further configured to operate in a fully awake state after receipt of the indication to receive a beacon from the AP indicating a data transmission is pending for the station.
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公开(公告)号：US10601562B2
公开(公告)日：2020-03-24
申请号：US16008880
申请日：2018-06-14
Applicant: Apple Inc.
Inventor： Joonsuk Kim , Yuchul Kim
Abstract: This disclosure relates to orthogonal frequency division multiple access (OFDMA) communication in wireless local area networks (WLANs). According to some embodiments, a downlink OFDMA frame may be transmitted. An uplink OFDMA frame including acknowledgements associated with the downlink OFDMA frame may be received. The uplink OFDMA frame may be processed, in some instances including determining which devices receiving the downlink OFDMA frame transmitted an acknowledgement associated with the downlink OFDMA frame in the uplink OFDMA frame.
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公开(公告)号：US10567186B2
公开(公告)日：2020-02-18
申请号：US15137870
申请日：2016-04-25
Applicant: Apple Inc.
Inventor： Guoqing Li , Joonsuk Kim , Chiu Ngok E. Wong , Yong Liu , Su Khiong Yong , Christiaan A. Hartman , Syed Aon Mujtaba , Ye Sun , Shu Du , Wen Zhao
IPC: H04W4/06 , H04L12/18 , H04B7/0452 , H04W84/12
Abstract: A method for receiving feedback on a quality of multicast transmissions in a Wireless Local Access Network (WLAN) including a source electronic device (e.g., an access point) and a plurality of electronic devices is disclosed, according to some embodiments. The method can include (i) transmitting a plurality of multicast packets addressed to a subset of the plurality of electronic devices by the source electronic device; (ii) concurrently polling the subset of the plurality of electronic devices by the source electronic device; and (iii) receiving a plurality of block acknowledgements (BAs) from at least the subset of the plurality of electronic devices by the source electronic device. Each BA may include information on a quality of reception of two or more multicast packets received at an electronic device.
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公开(公告)号：US10524286B2
公开(公告)日：2019-12-31
申请号：US15605158
申请日：2017-05-25
Applicant: Apple Inc.
Inventor： Jarkko L. Kneckt , Ashok Ranganath , Yong Liu , Christiaan A. Hartman , Guoqing Li , Oren Shani , Joonsuk Kim
Abstract: An electronic device that transmits a frame to a second electronic device is described. In particular, during operation, an interface circuit in the electronic device (such as an access point in a WLAN) may transmit the frame to the second electronic device using a Wi-Fi communication protocol. The frame may include information cancelling a previously specified NAV protected time in a preamble of the frame. For example, the information may include a CF-End indication. Moreover, the information may be included in a MAC header of the frame and, more generally, in a preamble of a high efficiency (HE) physical layer convergence protocol (PLCP) protocol data unit (PPDU). Furthermore, the electronic device may transmit the frame in response to a block acknowledgment (BA) from the second electronic device.
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公开(公告)号：US10356819B2
公开(公告)日：2019-07-16
申请号：US15230090
申请日：2016-08-05
Applicant: Apple Inc.
Inventor： Guoqing Li , Yong Liu , Joonsuk Kim , Christiaan A. Hartman , Chiu Ngok E. Wong , Syed Aon Mujtaba , Matt Semersky , Su Khiong Yong
IPC: H04W74/08
Abstract: Disclosed herein are system, method, and computer program product embodiments for enabling a spatial reuse opportunity at a high efficiency (HE) station and a network allocation vector (NAV) reset capability at a legacy station using a Request to Send and/or Clear to Send (RTS and/or CTS) frame. For example, the method can include receiving a RTS frame with a redefined field that specifies spatial reuse information. The NAV can be set based on the RTS frame. The method can determine whether a second frame was received within a threshold time after a Short Interframe Space (SIFS). Finally, the method can reset the NAV based on whether the second frame was received within the threshold time.
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