Invention Grant
- Patent Title: Power management for wireless direct link
- Patent Title (中): 电源管理无线直连
-
Application No.: US14157213Application Date: 2014-01-16
-
Publication No.: US09002415B2Publication Date: 2015-04-07
- Inventor: Menzo Wentink
- Applicant: Intellectual Ventures I LLC.
- Applicant Address: US DE Wilmington
- Assignee: Intellectual Ventures I LLC
- Current Assignee: Intellectual Ventures I LLC
- Current Assignee Address: US DE Wilmington
- Main IPC: H04M1/00
- IPC: H04M1/00 ; H04W52/02 ; H04B7/212 ; H04W52/04 ; H04W52/48 ; H04W88/04

Abstract:
Disclosed herein are exemplary techniques for managing power in a direct wireless link between two wireless devices. The present disclosure provides at least three direct link power management techniques: Fast Resumption Mode (FRM) wherein the direct link is resumed automatically at a specified timing synchronization function (TSF); Slow Resumption Mode (SRM) wherein the direct link may be resumed by sending a Resume-Request via the access point; and Reverse Polling (RP), wherein one peer station of the direct link is continually awake and the other peer station uses reverse polling to start a service period. Thus, a method for power management of a direct wireless link between two wireless devices is disclosed. The method comprising the steps of establishing a direct wireless link between the first wireless device and the second wireless device; transmitting, from a first wireless device, a frame having a time value; receiving, at the second wireless device, the frame from the first wireless device; suspending the direct wireless link a duration determined based on the time value; and resuming the direct wireless link at a time determined based on the time value.
Public/Granted literature
- US20140133378A1 POWER MANAGEMENT FOR WIRELESS DIRECT LINK Public/Granted day:2014-05-15
Information query