Virtual circuit management in cellular telecommunications
First Claim
Patent Images
1. A method for establishing a downlink virtual circuit comprising:
- receiving, at a radio port, a virtual circuit identifier from a wireless terminal;
attaching said virtual circuit identifier to an OA&
M cell;
sending a set-reverse-VC message in said OA&
M cell;
transmitting, from said radio port, said OA&
M cell to a radio port manager over an uplink virtual circuit;
receiving said OA&
M cell by a switch in said uplink virtual circuit;
reading said set-reverse-VC message; and
in response to said set-reverse-VC message, establishing said downlink virtual circuit in said switch.
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Accused Products
Abstract
A method and apparatus for managing a virtual circuit network is disclosed that enables hand-off management. An illustrative embodiment establishes a virtual ciruit by receiving, at a radio port, a virtual circuit identifier from a wireless terminal and attaching the virtual circuit identifier to an OA&M cell. The radio port then transmits, over a pre-established unidirectional virtual ciruit, the OA&M cell to a radio port manager.
279 Citations
4 Claims
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1. A method for establishing a downlink virtual circuit comprising:
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receiving, at a radio port, a virtual circuit identifier from a wireless terminal; attaching said virtual circuit identifier to an OA&
M cell;sending a set-reverse-VC message in said OA&
M cell;transmitting, from said radio port, said OA&
M cell to a radio port manager over an uplink virtual circuit;receiving said OA&
M cell by a switch in said uplink virtual circuit;reading said set-reverse-VC message; and in response to said set-reverse-VC message, establishing said downlink virtual circuit in said switch. - View Dependent Claims (2)
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3. A method for establishing a downlink virtual circuit comprising:
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creating a plurality of virtual circuit identifiers, each of which is associated with the others; transmitting said plurality of virtual circuit identifiers to a wireless terminal via a first radio port; communicating with said wireless terminal via said first radio port with one of said plurality of virtual circuit identifiers; receiving, at a second radio port, another one of said plurality of virtual circuit identifiers from said wireless terminal; attaching said another one of said plurality of virtual circuit identifiers to an OA&
M cell;sending a set-reverse-VC message in said OA&
M cell;transmitting, from said second radio port, said OA&
M cell to a radio port manager over a uplink virtual circuit;receiving said OA&
M cell by a switch in said uplink virtual circuit;reading said set-reverse-VC message by said switch; and in response to said set-reverse-VC message, establishing said downlink virtual circuit in said switch. - View Dependent Claims (4)
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Specification