公开(公告)号：US20180084558A1

公开(公告)日：2018-03-22

申请号：US15479191

申请日：2017-04-04

Applicant: Apple Inc.

Inventor： Camille CHEN ,  Ye SUN ,  Hsin-Yao CHEN ,  Siegfried LEHMANN

IPC: H04W72/08 ,  H04L12/911 ,  H04W4/00 ,  H04W72/04 ,  H04B17/318

CPC classification number: H04L63/0428 ,  H04L9/08 ,  H04L2209/80 ,  H04W4/21 ,  H04W4/80 ,  H04W12/00502 ,  H04W12/04 ,  H04W12/06 ,  H04W84/12 ,  H04W88/06

Abstract: Methods and apparatuses for managing coexistence of multiple wireless devices that share a radio frequency band and communicate with a wireless network device. The wireless devices include both wireless personal area network (WPAN) and wireless local area network (WLAN) devices. The wireless network device monitors data activity for WPAN devices to determine whether the WPAN devices are active or inactive, and sets one or more polling intervals for the WPAN devices accordingly. The wireless network device consolidates polling for multiple WPAN devices into a common WPAN polling time period and sends a radio frequency (RF) reservation request to a WLAN access point (AP), the RF reservation request including an indication of a duration for the common WPAN polling time period, during which the multiple WPAN devices are polled. WLAN data packet transmission is delayed during the common WPAN polling time period to mitigate coexistence interference.

公开(公告)号：US20230397280A1

公开(公告)日：2023-12-07

申请号：US18453597

申请日：2023-08-22

Applicant: Apple Inc.

Inventor： Lei LI ,  Xiaojun CHEN ,  Camille CHEN ,  Siegfried LEHMANN ,  Vusthla Sunil REDDY ,  Peter M. AGBOH

IPC: H04W76/16 ,  H04W52/50 ,  H04W4/80 ,  H04L5/00 ,  H04W84/18 ,  H04B17/318 ,  H04W12/55

CPC classification number: H04W76/16 ,  H04W52/50 ,  H04W4/80 ,  H04L5/0055 ,  H04W84/18 ,  H04B17/318 ,  H04W12/55

Abstract: Methods performed by a first sink device, a source device, or a second sink device. The first sink device is connected to a source device via a first communication link and a second sink device via a second communication link, wherein the second sink device is configured to eavesdrop on communications between the first sink device and the source device on the first communication link. The methods include determining an occurrence of a trigger event and modifying an operation of at least one of the first sink device, the second sink device or the source device based at least on the trigger event occurring.

公开(公告)号：US20240106689A1

公开(公告)日：2024-03-28

申请号：US18238456

申请日：2023-08-25

Applicant: Apple Inc.

Inventor： Lei LI ,  Camille CHEN ,  Siegfried LEHMANN ,  Yuelin MA

IPC: H04L27/227 ,  H04L27/26

CPC classification number: H04L27/2278 ,  H04L27/2662

Abstract: Systems and methods for low power wireless device detection are provided. In one or more implementations, a transmitting/advertising device may include a device identifier and/or one or more time-offset bits in a wireless communication frame for a scanning/receiving device. The scanning/receiving device may perform sequence-level correlation operations to detect the presence of the transmitting/advertising device. The sequence-level correlation operations may detect the transmitting/advertising device based on a detection of a correlation signal peak corresponding to the device identifier, and/or based relative timing of the correlation signal peak corresponding to the device identifier and a correlation signal peak corresponding to another item in the wireless communication frame.

公开(公告)号：US20180084419A1

公开(公告)日：2018-03-22

申请号：US15479195

申请日：2017-04-04

Applicant: Apple Inc.

Inventor： Ye SUN ,  Camille CHEN ,  Guangquan ZHOU ,  Hsin-Yao CHEN ,  Siegfried LEHMANN

IPC: H04W12/06 ,  H04W12/04 ,  H04W72/04 ,  H04W72/08 ,  H04W4/00 ,  H04L9/08 ,  H04L29/06

CPC classification number: H04L63/0428 ,  H04L9/08 ,  H04L2209/80 ,  H04W4/21 ,  H04W4/80 ,  H04W12/00502 ,  H04W12/04 ,  H04W12/06 ,  H04W84/12 ,  H04W88/06

Abstract: Methods and apparatuses for mitigating coexistence interference in a wireless device between a WLAN interface and a WPAN interface during a WLAN authentication process. The wireless device associates with a WLAN access point (AP), and after receiving a WLAN association response from the WLAN AP, the wireless device alternates between WLAN time periods, during which WLAN transmission is enabled and WPAN transmission is disabled, and WPAN time periods, during which WPAN transmission is enabled and WLAN transmission is disabled, during the WLAN authentication process. Durations of the WPAN time periods are based at least in part on a WPAN profile, e.g., a Bluetooth profile, in use by the wireless device. Durations of the WLAN time periods are based at least in part on receipt of WLAN authentication messages from the WLAN AP during the authentication process or expiration of WLAN authentication process timers.

公开(公告)号：US20240107426A1

公开(公告)日：2024-03-28

申请号：US18238454

申请日：2023-08-25

Applicant: Apple Inc.

Inventor： Lei LI ,  Camille CHEN ,  Siegfried LEHMANN ,  Yuelin MA

IPC: H04W48/10 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04W48/10 ,  H04L5/0017 ,  H04L27/2695

Abstract: Systems and methods for low power wireless device detection are provided. In one or more implementations, a transmitting/advertising device may include a device identifier and/or one or more time-offset bits in a wireless communication frame for a scanning/receiving device. The scanning/receiving device may perform sequence-level correlation operations to detect the presence of the transmitting/advertising device. The sequence-level correlation operations may detect the transmitting/advertising device based on a detection of a correlation signal peak corresponding to the device identifier, and/or based relative timing of the correlation signal peak corresponding to the device identifier and a correlation signal peak corresponding to another item in the wireless communication frame.

公开(公告)号：US20220183097A1

公开(公告)日：2022-06-09

申请号：US17652792

申请日：2022-02-28

Applicant: Apple Inc.

Inventor： Lei LI ,  Xiaojun CHEN ,  Camille CHEN ,  Siegfried LEHMANN ,  Vusthla Sunil REDDY ,  Peter M. AGBOH

IPC: H04W76/16 ,  H04W52/50 ,  H04W4/80 ,  H04L5/00 ,  H04W84/18 ,  H04B17/318 ,  H04W12/55

Abstract: Methods performed by a first sink device, a source device, or a second sink device. The first sink device is connected to a source device via a first communication link and a second sink device via a second communication link, wherein the second sink device is configured to eavesdrop on communications between the first sink device and the source device on the first communication link. The methods include determining an occurrence of a trigger event and modifying an operation of at least one of the first sink device, the second sink device or the source device based at least on the trigger event occurring.