-
公开(公告)号：US10924303B2
公开(公告)日：2021-02-16
申请号：US16291973
申请日：2019-03-04
Applicant: Apple Inc.
Inventor： Anuj Batra , Joachim S. Hammerschmidt , Eren Sasoglu
IPC: H04L25/02 , H04L9/06 , H04L9/08 , H04L25/03 , H04B1/711 , H04B7/0413 , G06F7/58 , H04L25/49 , H04B1/69 , H04B1/7163 , H04L9/12
Abstract: A secure training sequence (STS) is included in wireless packets communicated between electronic devices to assist with channel estimation and wireless ranging. The STS includes multiple STS segments generated based on outputs from a cryptographically secure pseudo-random number generator (CSPRNG), the STS segments being separated by guard intervals and formatted in accordance with an 802.15.4 data symbol format that uses burst position modulation (BPM) and binary phase shift keying (BPSK) to map bits from the CSPRNG to burst positions and pulse polarities for the STS symbols. Both a first electronic device, which generates the STS, and a second electronic device, which estimates a communication channel using the STS, have prior private knowledge of cryptographic keys required to generate a non-repetitive single-use pseudo-random (PR) sequence by the CSPRNG. The STS includes two burst position intervals per STS symbol and two possible burst positions within each burst position interval.
-
公开(公告)号：US12289671B2
公开(公告)日：2025-04-29
申请号：US17841064
申请日：2022-06-15
Applicant: Apple Inc.
Inventor： Jarkko L. Kneckt , Veerendra Boodannavar , Charles F Dominguez , Yong Liu , Su Khiong Yong , Tianyu Wu , Daniel R. Borges , Sundar Sriram , Oren Shani , Yoel Boger , Anuj Batra , Debashis Dash , Matthew L. Semersky , Ahmet G. Cepni , Noam Ginsburg
Abstract: An electronic device that performs a scan is described. During operation, the electronic device may perform, using a scanning radio, the scan of a band of frequencies, where the scanning radio only receives frames. Then, the electronic device may receive, using the scanning radio, a beacon associated with a second electronic device, where the beacon includes information associated with operation of a third electronic device in a second band of frequencies. Next, the electronic device may perform, using a data radio, a second scan of the second band of frequencies based at least in part on the information, where the data radio transmits and/or receives second frames, and where the second scan is performed, at least in part, while the scan is performed. Note that the electronic device may not be associated with (or may not have a connection with) the second electronic device and/or the third electronic device.
-
公开(公告)号：US20250016820A1
公开(公告)日：2025-01-09
申请号：US18763735
申请日：2024-07-03
Applicant: Apple Inc.
Inventor： Zhou Lan , Chittabrata Ghosh , Anuj Batra , Wook Bong Lee , Mohamed Abouelseoud , Morteza Mehrnoush
IPC: H04W72/566 , H04L5/00 , H04W84/12
Abstract: Systems, methods, and mechanisms for preemption of non-low latency data within an aggregated medium access control (MAC) protocol data unit (AMPDU), e.g., such as in current and future IEEE 802.11 systems. A wireless device (e.g., an access point or wireless station) may transmit, during an AMPDU, a trigger to receive (TRX) frame. The TRX frame may indicate preemption of non-low latency data intended for a first wireless station with low latency data intended for a second wireless station, e.g., via an acknowledgement policy change. Additionally, the wireless device may be configured to transmit, to the second wireless station, the low latency data within the AMPDU. Further, the wireless device may be configured to receive, after the AMPDU transmission is complete, a multi-block acknowledgement (M-BA) frame from the second wireless station. The M-BA frame and completion of the AMPDU transmission are separated by a short inter-frame space (SIFS).
-
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.
-
公开(公告)号：US20250081091A1
公开(公告)日：2025-03-06
申请号：US18750400
申请日：2024-06-21
Applicant: Apple Inc.
Inventor： Mohamed Abouelseoud , Akira Yamanaka , Wook Bong Lee , Oren Shani , Zhou Lan , Qi Wang , Anuj Batra , Jarkko L. Kneckt , Yong Liu , Su Khiong Yong
Abstract: This disclosure relates to methods for transmission preemption in a wireless local area network. A downlink transmission may be performed by an access point device on a first wireless link. Signaling requesting or indicating preemption of the downlink transmission may be provided from a non-access point device to the access point device on a second wireless link. The downlink transmission may be preempted based at least in part on the signaling requesting or indicating preemption of the downlink transmission.
-
Patent Agency Ranking
公开(公告)号：US20240080660A1
公开(公告)日：2024-03-07
申请号：US18447478
申请日：2023-08-10
Applicant: Apple Inc.
Inventor： Jarkko L. Kneckt , Yong Liu , Su Khiong Yong , Leonid Epstein , Zhou Lan , Anuj Batra , Mohamed Abouelseoud , Qi Wang
Abstract: An electronic device (such as an access point) that receives a modified response frame is described. During operation, an interface circuit in the electronic device may provide a trigger frame addressed to a second electronic device, where the trigger frame includes a trigger-frame variant that is compatible with an IEEE 802.11 standard (such as IEEE 802.11ax or a subsequent IEEE 802.11 standard). Then, the interface circuit may receive a modified response frame associated with the second electronic device, where the modified response frame is different from a response frame associated with the trigger frame specified by the IEEE 802.11 standard. When the second electronic device indicates support for the modified response frame during association with the electronic device, the interface circuit may define parameters associated with the modified response frame in an association response.
-
公开(公告)号：US20240073794A1
公开(公告)日：2024-02-29
申请号：US18447564
申请日：2023-08-10
Applicant: Apple Inc.
Inventor： Jarkko L. Kneckt , Yong Liu , Su Khiong Yong , Leonid Epstein , Zhou Lan , Anuj Batra , Mohamed Abouelseoud , Qi Wang
Abstract: An electronic device (such as an access point) that receives a modified response frame is described. During operation, an interface circuit in the electronic device may provide a management frame addressed to a second electronic device. Then, the interface circuit may provide a trigger frame addressed to the second electronic device, where the trigger frame includes a trigger-frame variant that is compatible with an IEEE 802.11 standard. Next, the interface circuit may receive a modified response frame associated with the second electronic device, where the modified response frame is different from a response frame associated with the trigger frame specified by the IEEE 802.11 standard, and modifications to the modified response frame are specified in the management frame.
-
公开(公告)号：US20230246743A1
公开(公告)日：2023-08-03
申请号：US18298270
申请日：2023-04-10
Applicant: Apple Inc.
Inventor： Tianyu Wu , Yong Liu , Jinjing Jiang , Jarkko L. Kneckt , Lochan Verma , Qi Wang , Su Khiong Yong , Anuj Batra
IPC: H04L1/1607 , H04L5/00 , H04L1/00
CPC classification number: H04L1/1621 , H04L5/0007 , H04L5/0098 , H04L1/0057
Abstract: An electronic device (such as an access point) is described. This electronic device transmits an orthogonal frequency division multiple access (OFDMA) frame to a recipient electronic device (such as a client or a station). The OFDMA frame includes multiple predefined resource units (RUs) allocated to the recipient electronic device in a set of predefined RUs having associated frequency bandwidths. Moreover, the multiple predefined RUs include two or more first predefined RUs having a first number of tones less than a predefined amount, or two or more second predefined RUs having a second number of tones greater than or equal to the predefined amount. For example, the predefined amount may include 242 tones. Note that the multiple predefined RUs may have the same or different numbers of tones. Moreover, the electronic may receive an acknowledgment or a block acknowledgment from the recipient electronic device.
-
公开(公告)号：US11641254B2
公开(公告)日：2023-05-02
申请号：US17194627
申请日：2021-03-08
Applicant: Apple Inc.
Inventor： Tianyu Wu , Yong Liu , Jinjing Jiang , Jarkko L. Kneckt , Lochan Verma , Qi Wang , Su Khiong Yong , Anuj Batra
IPC: H04L1/16 , H04L1/00 , H04L5/00 , H04L1/1607
Abstract: An electronic device (such as an access point) is described. This electronic device transmits an orthogonal frequency division multiple access (OFDMA) frame to a recipient electronic device (such as a client or a station). The OFDMA frame includes multiple predefined resource units (RUs) allocated to the recipient electronic device in a set of predefined RUs having associated frequency bandwidths. Moreover, the multiple predefined RUs include two or more first predefined RUs having a first number of tones less than a predefined amount, or two or more second predefined RUs having a second number of tones greater than or equal to the predefined amount. For example, the predefined amount may include 242 tones. Note that the multiple predefined RUs may have the same or different numbers of tones. Moreover, the electronic may receive an acknowledgment or a block acknowledgment from the recipient electronic device.
-
30.发明授权公开(公告)号：US11585916B2
公开(公告)日：2023-02-21
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.
-
-
-
-
-
-
-
-
-
Search Results
32
records
(took 0.021 seconds)
