Role Switching Method Performed in Dual Role Device, and the Dual Role Device

摘要

A method for switching a dual role device (DRD) between the roles of a host and a device is provided. In the role switching method, when there is a request from a DRD desiring a role switch, a partner DRD may switch its own role. The role may be switched based on a plurality of consecutive micro-scheduled management commands (MMCs) or based on specific bit values included in a wireless universal serial bus (W-USB) application specific information element (ASIE) of a beacon slot. Therefore, the role switching method may reduce overhead by not having to simultaneously and continuously maintain a default link and a reverse link. The DRD may perform the role switching method.