Patent ID: 8553729
Filing Date: 2013-10-08
Classification: H04L,H04W

Abstract:
1. A hierarchical wireless access system including terminals, access points, centralized access gateways, and further including a plurality of master access point management units located at an access layer and adopting a distributed architecture, wherein the master access point management units respectively have communication interfaces interacting with the centralized access gateways or core networks, or interact with the centralized access gateways and the core networks, and one or more access points are attached to the master access point management units, and the master access point management units are for processing and forwarding data and signaling interaction among the attached access points, and providing functions of access gateway, local operation and maintenance and network management for the attached access points; and wherein the wireless access system further including one or more slave access point management units, which are connected with the master access point management units directly or after being cascaded, and each of the one or more slave access point management units is attached with a part of the one or more access points attached to master access point management units, so as to process and forward data and signaling interaction among the attached access points; master access point management units and slave access point management units which are directly connected with the access points have a power-line modulation and demodulation function, and adopt the power line as a transmission medium to directly connect with the attached access points; and a communication cable is used as a transmission medium between the master access point management unit and the slave access point management unit.