Method and system to support fast hand-over of mobile subscriber stations in broadband wireless networks
First Claim
1. A method for performing a fast hand-over in a broadband wireless network, comprising:
- identifying a target base station (BS) to which an air interface between a mobile subscriber station (MSS) and a serving BS is to be handed-off;
forwarding connection context information corresponding to a current air interface of a serving BS from the serving BS to the target BS; and
pre-provisioning service corresponding to a migrated air interface to the MSS via the target BS using the connection context information.
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Accused Products
Abstract
Method and system to support fast hand-over of mobile subscriber stations in broadband wireless networks. In connection with a hand-over process, a determination is made to which target base station (BS) an air interface for a mobile subscriber station (MSS) is to be handed-over. Various service requirements are requested by the MSS, including a Quality of Service (QoS) level. Based on feedback from potential target BSs, a target BS for hand-over is selected. Current connection context data corresponding to current service flows provided by a serving BS is passed to the target BS to pre-provision service such that a minimal amount of re-entry messaging is required. In one embodiment, a Management Information Base (MIB) instance is maintained at each BS in a broadband wireless network. To pre-provision service, applicable connection context data are transferred between MIB instances at the serving and target BS using Simple Network Management Protocol (SNMP) messaging.
147 Citations
29 Claims
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1. A method for performing a fast hand-over in a broadband wireless network, comprising:
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identifying a target base station (BS) to which an air interface between a mobile subscriber station (MSS) and a serving BS is to be handed-off;
forwarding connection context information corresponding to a current air interface of a serving BS from the serving BS to the target BS; and
pre-provisioning service corresponding to a migrated air interface to the MSS via the target BS using the connection context information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A machine-readable medium to store instructions, which if executed at a base station (BS) of a broadband wireless network perform operations comprising:
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maintaining connection context information corresponding to a current air interface to a mobile subscriber station (MSS) for which the base station is providing a current service flow; and
, in response to a request to hand-over the air interface to a target BS;
forwarding connection context information corresponding to the current air interface to the target BS;
- View Dependent Claims (17, 18, 19, 20, 21)
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22. An apparatus, comprising:
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a processor;
a plurality of broadband wireless network components compliant with the IEEE (Institute of Electronic and Electrical Engineers) P802.16-based broadband wireless standard, operatively coupled to the processor, the broadband wireless components to facilitate communications over a IEEE P802.16-based broadband wireless network; and
at least one storage device, operatively coupled to the processor and having instructions stored therein, which when executed by the processor perform operations including;
maintaining connection context information corresponding to a current air interface to a mobile subscriber station (MSS) for which the apparatus is providing a current service flow; and
, in response to a request to hand-over the air interface to a target base station (BS);
forwarding connection context information corresponding to the current air interface to the target BS. - View Dependent Claims (23, 24, 25)
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26. A system, comprising:
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a radio access node (RAN);
a plurality of base stations (BS), each communicatively coupled to the RAN, each BS comprising;
a processor;
a plurality of broadband wireless network components compliant with the IEEE (Institute of Electronic and Electrical Engineers) P802.16-based broadband wireless standard, operatively coupled to the processor, the broadband wireless components to facilitate communications over a IEEE P802.16-based broadband wireless network; and
at least one storage device, operatively coupled to the processor and having instructions stored therein, which when executed by the processor perform operations including;
maintaining connection context information corresponding to a current air interface to a mobile subscriber station (MSS) for which the BS is providing a current service flow; and
, in response to a request to hand-over the air interface to another BS comprising a target base station (BS);
forwarding connection context information corresponding to the current air interface to the target BS. - View Dependent Claims (27, 28, 29)
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Specification