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公开(公告)号：US20170126461A1
公开(公告)日：2017-05-04
申请号：US15336728
申请日：2016-10-27
Applicant: Apple Inc.
Inventor： Guoqing LI , Christiaan A. HARTMAN , Joonsuk KIM , Su Khiong YONG , Yong LIU
Abstract: A wireless local area network station (STA) changes a receiver operating mode (ROM) and saves power by influencing when a ROM-conforming access point (AP) transmission takes place. The STA evaluates candidate delay regimes after a negotiation exchange with the STA. The STA then instructs the AP of a selected delay regime which the AP is permitted to use when transmitting data according to the changed ROM. The ROM can involve a change in the system bandwidth demodulated by the STA and/or the number of spatial streams demodulated by the STA. The delay regime can allow the AP to transmit with little or no delay based on the changed ROM, or the delay regime may require a fixed time delay before the AP transmits according to the changed ROM.
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公开(公告)号：US20170041798A1
公开(公告)日：2017-02-09
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
CPC classification number: H04W74/0816
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.
Abstract translation: 本文公开了一种系统，方法和计算机程序产品实施例，其使得能够在高效率（HE）站处实现空间重用机会，并且使用发送请求和/或清除至 发送（RTS和/或CTS）帧。 例如，该方法可以包括接收具有指定空间重用信息的重定义字段的RTS帧。 可以基于RTS帧设置NAV。 该方法可以确定在短帧间间隔（SIFS）之后的阈值时间内是否接收到第二帧。 最后，该方法可以基于在阈值时间内是否接收到第二帧来重置NAV。
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公开(公告)号：US20230089319A1
公开(公告)日：2023-03-23
申请号：US17896750
申请日：2022-08-26
Applicant: Apple Inc.
Inventor： Jarkko L. KNECKT , Aniruddha S. DIWAN , Charles F. DOMINGUEZ , Debashis DASH , Elliot S. BRIGGS , Matthew L. SEMERSKY , Noam GINSBURG , Sidharth R. THAKUR , Veerendra BOODANNAVAR , Welly KASTEN , Nathan A. KRALIAN , Daniel R. BORGES , Oren SHANI , Su Khiong YONG , Yang YU , Yoel BOGER , Yong LIU
IPC: H04W8/26 , H04W12/037
Abstract: Embodiments are disclosed for address changing schemes in a wireless communications system. Some embodiments include an access point (AP) that can establish two or more address profiles with a station (STA), establish a schedule for switching from a first address profile to a second address profile, where the first and second address profiles are of the two or more address profiles, and transmit a first data transmission using the first address profile. Some embodiments include switching from the first address profile to the second address profile based on the schedule, and transmitting a second data transmission using the second address profile. The schedule can be based on a randomized time synchronization function (TSF). The AP can establish a joint algorithm with the STA, and use the joint algorithm determine the first and the second address profiles as well as transition times for the schedule.
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公开(公告)号：US20220201785A1
公开(公告)日：2022-06-23
申请号：US17567709
申请日：2022-01-03
Applicant: Apple Inc.
Inventor： Jarkko L. KNECKT , Gaurav JAIN , Yong LIU , Jinjing JIANG , Tianyu WU , Su Khiong YONG , Guoqing LI , Charles F. DOMINGUEZ
IPC: H04W76/15 , H04W76/11 , H04W12/0471 , H04W48/16 , H04W80/02
Abstract: Some embodiments include utilizing a multilink media access control (MAC) address structure to support multilink devices (MLDs) that can operate concurrently in more than one link such as extremely high throughput (EHT) access points (APs) and EHT stations (STA), where the multilink MAC address structure is compatible with legacy devices. An EHT AP can utilize a multilink basic service set (BSS) identification (BSSID) MAC address to communicate with an EHT STA identified by a multilink MAC address. Values of the multilink BSSID and the multilink MAC address of the EHT STA are independent of which of the multiple links are used in the communication. In addition, to utilizing a multilink BSSID, the EHT AP can also support unique link-specific MAC addresses to concurrently support legacy and MLD stations. The EHT STA can also utilize unique link-specific MAC addresses that can be different than the EHT AP's link-specific MAC addresses.
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公开(公告)号：US20220132481A1
公开(公告)日：2022-04-28
申请号：US17491155
申请日：2021-09-30
Applicant: Apple Inc.
Inventor： Jinjing JIANG , Yong LIU , Tianyu WU , Qi WANG , Su Khiong YONG , Jarkko L. KNECKT , Lochan VERMA
Abstract: Methods and apparatuses are disclosed for high-bandwidth stations in a WiFi environment. In embodiments, a bandwidth of communications supported by the access point is divided into multiple frequency segments. In an embodiment, bandwidths up to 320 MHz are supported, which can be subdivided into four frequency segments of 80 MHz each. Different stations park on different frequency segments, whereas the access point has its primary channel located on the first frequency segment. With this configuration, uplink and downlink channel access can be provided to the different stations using a primary channel hopping pattern, which is provided to the stations from the AP. This pattern provides time windows for each frequency segment, during which the stations in that segment are able to freely communicate. Several other aspects of the disclosure further support this configuration and other high-bandwidth configurations.
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Patent Agency Ranking
公开(公告)号：US20210377851A1
公开(公告)日：2021-12-02
申请号：US17324518
申请日：2021-05-19
Applicant: Apple Inc.
Inventor： Yong LIU , Su Khiong YONG , Qi WANG , Tianyu WU , Lochan VERMA , Jinjing JIANG , Jarkko L. KNECKT
Abstract: Some aspects of this disclosure include apparatuses and methods for implementing a hibernation mode for multi-link wireless communication networks such as a wireless local area network (WLAN). For example, some aspects relate to a multi-link device (MLD) including a first station (STA) associated with a first link of a wireless network and configured to communicate with a second MLD over the first link. The MLD also includes a second STA associated with a second link of the wireless network. The second STA is in a hibernation mode. The MLD also includes one or more processors communicatively coupled to the first and second STAs and configured to control operations of the first and second STAs.
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公开(公告)号：US20210076437A1
公开(公告)日：2021-03-11
申请号：US16921276
申请日：2020-07-06
Applicant: Apple Inc.
Inventor： Jarkko L. KNECKT , Gaurav JAIN , Yong LIU , Jinjing JIANG , Tianyu WU , Su Khiong YONG , Guoqing LI , Charles F. DOMINGUEZ
Abstract: Some embodiments include utilizing a multilink media access control (MAC) address structure to support multilink devices (MLDs) that can operate concurrently in more than one link such as extremely high throughput (EHT) access points (APs) and EHT stations (STA), where the multilink MAC address structure is compatible with legacy devices. An EHT AP can utilize a multilink basic service set (BSS) identification (BSSID) MAC address to communicate with an EHT STA identified by a multilink MAC address. Values of the multilink BSSID and the multilink MAC address of the EHT STA are independent of which of the multiple links are used in the communication. In addition, to utilizing a multilink BSSID, the EHT AP can also support unique link-specific MAC addresses to concurrently support legacy and MLD stations. The EHT STA can also utilize unique link-specific MAC addresses that can be different than the EHT AP's link-specific MAC addresses.
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公开(公告)号：US20200045634A1
公开(公告)日：2020-02-06
申请号：US16403983
申请日：2019-05-06
Applicant: Apple Inc.
Inventor： Jarkko L. KNECKT , Christiaan A. HARTMAN , Qi WANG , Su Khiong YONG , Yong LIU
Abstract: Some embodiments of this disclosure include apparatuses and methods for implementing a target wake time (TWT) technique for multicast communication. For example, some embodiments relate to a method including configuring a target wake time (TWT) process for delivering one or more multicast packets to a group of electronic devices. The method further includes determining that a service period associated with the TWT process has started and transmitting, in accordance with the TWT process, the one or more multicast packets during the service period, where the one or more transmitted multicast packets are addressed to the group of electronic devices.
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公开(公告)号：US20200003890A1
公开(公告)日：2020-01-02
申请号：US16383119
申请日：2019-04-12
Applicant: Apple Inc.
Inventor： Su Khiong YONG , Mithat C. Dogan , Mingguang Xu , Anuj Batra , Keangpo R. Ho , Akira Yamanaka
Abstract: Some embodiments enable secure time of flight (SToF) measurements for wireless communication packets that include secure ranging packets with zero padded random sequence waveforms, including at higher frequency bands (e.g., 60 GHz) and in non-line of sight (NLOS) scenarios. Some embodiments provide a flexible protocol to allow negotiation of one or more security parameters and/or SToF operation parameters. For example, some embodiments employ: phase tracking and signaling to support devices with phase noise constraints to mitigate phase noise at higher frequencies; determining a number of random sequences (RSs) used for SToF to support consistency checks and channel verification; additional rules supporting sub-phases of the SToF operation; and/or determining First Path (FP), Sub-Optimal, and/or Hybrid path AWV modes and the pre-conditioning usage of these modes.
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公开(公告)号：US20190386793A1
公开(公告)日：2019-12-19
申请号：US16459544
申请日：2019-07-01
Applicant: Apple Inc.
Inventor： Guoqing LI , Yong LIU , Christiaan A. HARTMAN , Ashok RANGANATH , Oren SHANI , Su Khiong YONG , Jarkko L. KNECKT , Joonsuk KIM
IPC: H04L5/00 , H04W74/06 , H04L12/801
Abstract: During operation, an interface circuit in an electronic device may receive, from a second electronic device (such as an access point in a WLAN), an uplink trigger frame that may specify an access category. In response to the uplink trigger frame, the electronic device may first include data associated with the specified access category in one or more frames, and then may transmit the one or more frames to the second electronic device. Moreover, when all the data associated with the specified access category has been transmitted or when there is no data associated with the specified access category, and when there is leftover time in an allocation associated with the uplink trigger frame, the interface circuit may transmit the one or more frames to the second electronic device with additional data associated with another access category that is different from the specified access category.
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