Hierarchical wireless access system and access point management unit in the system
First Claim
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;
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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.
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Abstract
A hierarchical wireless access system includes terminals, access points, centralized access gateways and a plurality of master access point management units located at the access layer and adopting distributed architecture. The master access point management unit includes a communication interface interacting with the centralized access gateway and/or core networks, to which one or more access points are attached. The master access point management unit processes forwards the data and signaling among the attached access points, and provides the function of access gateway and local operation maintenance and network management. Construction of the master access point management unit and the access point in the system is also provided.
17 Citations
20 Claims
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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;
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A slave access point management unit in a hierarchical wireless access system, the hierarchical wireless access system including the slave access point management unit located at an access layer and access points attached to the slave access point management unit;
- the slave access point management unit at least including;
a master control switching module, having a communication interface interacting with access points attached to the slave access point management unit, for processing and forwarding data and signaling interaction of the access points attached to the slave access point management unit; and a timing client for regenerating and distributing clock information to timing clients of access points attached to the slave access point management unit via the master control switching module; and wherein the master control switching module further has a communication interface connected to a master access point management unit directly, and in the case where the communication interface is not connected directly to the master access point management unit, then the communication interface is connected via another slave access point management unit, and the master access point management unit is configured to process and forward data and signaling interaction among access points attached to the master access point management unit, and provide functions of access gateway, local operation and maintenance and network management for the access points attached to the master access point management unit; and the slave access point management unit further includes a power line modulation demodulation functional module, which is connected with the master control switching module and connected to an access point attached to the slave access point management unit via a power line to modulate and demodulate signals transmitted by the power line and to perform a link detection or adaptive processing, or to perform the link detection and the adaptive processing. - View Dependent Claims (14, 15)
- the slave access point management unit at least including;
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16. A master access point management unit in a hierarchical wireless access system, the hierarchical wireless access system including the master access point management unit located at an access layer and access points attached to the master access point management unit;
- the master access point management unit at least including;
a master control switching module, having a communication interface interacting with access points attached to the master access point management unit, for processing and forwarding data and signaling interaction of the access points attached to the master access point management unit; and a timing server for distributing clock information to timing clients of access points attached to the master access point management unit via the master control switching module; and wherein the master access point management unit is connected to a slave access point management unit, and the slave access point management unit is attached with a part of the access points attached to the master access point management units, so as to process and forward data and signaling interaction among the attached access points; and the master access point management unit further includes a power line modulation demodulation functional module, which is connected with the master control switching module and connected to an access point attached to the master access point management unit via a power line to modulate and demodulate signals transmitted by the power line and to perform a link detection or adaptive processing, or to perform the link detection and the adaptive processing. - View Dependent Claims (17, 18, 19, 20)
- the master access point management unit at least including;
Specification