公开(公告)号：US20170347372A1

公开(公告)日：2017-11-30

申请号：US15610046

申请日：2017-05-31

Applicant: Apple Inc.

Inventor： Guoqing LI ,  Yoel BOGER ,  Christiaan A. HARTMAN ,  Yong LIU ,  Oren SHANI ,  Maksim SHMUKLER

IPC: H04W74/08 ,  H04W74/00 ,  H04W28/02 ,  H04L12/861 ,  H04W72/04 ,  H04L5/00 ,  H04W84/12

CPC classification number: H04L49/90 ,  H04L5/0058 ,  H04W28/0278 ,  H04W72/1284 ,  H04W74/006 ,  H04W84/12

Abstract: An access point may receive, from a set of electronic devices, one or more buffer status reports that indicate that at least a subset of the electronic devices have uplink data associated with one or more access categories. In response, the access point may create a group of uplink virtual queues for one or more electronic devices in the subset based on the one or more buffer status reports, where a given uplink virtual queue corresponds to a particular access category and a given electronic device. The access point may start one or more backoff counters with a one-to-one correspondence to uplink virtual queues in the group of uplink virtual queues. When a backoff counter for the given uplink virtual queue reaches zero, the access point may transmit a trigger frame to an electronic device in the subset that corresponds to the given uplink virtual queue.