AAL2 negotiation procedure
US6993030B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2004 |
| Grant date | Jan 31, 2006 |
| Priority date | — |
| Expiry date | Jun 25, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5656
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
There is disclosed a method for establishing a plurality of ATM adaption layer type 2 channels between interworking functions across a single ATM virtual channel connection. Within each interworking function there are a system management layer entity an ANP layer management identity and a protocol stack. The ANP layer management entities are further sub-divided into a series of functional blocks comprising: Originating procedures, Terminating procedures and Status Record entity. The Status Record entity records whether each AAL2 channel amongst the plurality of AAL2 channels is assigned/unassigned or activated/de-activated. A new AAL2 channel is established between interworking functions when a System Management entity sends in Assign—Request primitive to ANP layer management entity requesting an available AAL2 channel. The status record entity within ANP layer management entity is interrogated and an available AAL2 channel is identified. A robust set of messages are exchanged between the ANP layer management entities indicating that an AAL2 channel is available and confirming or denying the connection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.