公开(公告)号：US10375035B2

公开(公告)日：2019-08-06

申请号：US15479191

申请日：2017-04-04

Applicant: Apple Inc.

Inventor： Camille Chen ,  Ye Sun ,  Hsin-Yao Chen ,  Siegfried Lehmann

IPC: H04W4/00 ,  H04L29/06 ,  H04W4/80 ,  H04L9/08 ,  H04W12/06 ,  H04W4/21 ,  H04W84/12 ,  H04W12/04 ,  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：US20170093727A1

公开(公告)日：2017-03-30

申请号：US15062360

申请日：2016-03-07

Applicant: Apple Inc.

Inventor： Camille Chen ,  Siegfried Lehmann ,  Hsin-Yao Chen ,  Wenping Lou

IPC: H04L12/853 ,  H04L29/06 ,  H04W72/12 ,  H04W76/02 ,  H04W4/00

CPC classification number: H04L47/2416 ,  H04L65/4069 ,  H04L65/80 ,  H04W4/80 ,  H04W72/1242 ,  H04W72/1263 ,  H04W76/10 ,  H04W84/12

Abstract: In embodiments, a client station operates to identify and prioritize time-sensitive short-range wireless packets, such as time-sensitive Bluetooth Low Energy (BTLE) packets, in a congested wireless environment. The client station may identify time-sensitive packets using, e.g., the type of device providing the packets, a state of the device providing the packets, and/or the type of data included in the packets. The client station may prioritize the time-sensitive packets in various ways, including by providing priority scheduling to the time-sensitive packets; pausing communication of other types of Bluetooth packets, such as A2DP packets; reducing a data rate of other types of Bluetooth packets, such as A2DP packets; and/or extending a data packet size of time-sensitive BTLE packets. The time-sensitive packets may thus be prioritized over packets associated with the same wireless protocol and/or a different wireless protocol.

公开(公告)号：US09445275B2

公开(公告)日：2016-09-13

申请号：US14666012

申请日：2015-03-23

Applicant: Apple Inc.

Inventor： Camille Chen ,  David Cheung ,  Hsin-Yao Chen ,  Michael J. Giles ,  Christopher B. Zimmermann

IPC: H04B7/02 ,  H04W16/04 ,  H04L5/00 ,  H04B7/04 ,  H04W72/12 ,  H04B7/06 ,  H04B15/00 ,  H04W88/06

CPC classification number: H04W16/04 ,  H04B7/0413 ,  H04B7/0691 ,  H04B15/00 ,  H04L5/0023 ,  H04L5/0064 ,  H04W72/1215 ,  H04W88/06

Abstract: Methods and apparatus for mitigation of radio interference between two or more wireless concurrently operating interfaces in a wireless device having an aggressive form factor. In one embodiment, the interfaces are used for different tasks (e.g., WLAN for data and PAN for human interface devices), and the device includes logic configured to evaluate the priority of the tasks and adjust the operation of one or more of the interfaces accordingly.