US6226294B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiplexing traffic into structure blocks in ATM cells
Assignee: Ericsson AB
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Filing: 1997-01-10
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Granted: 2001-05-01
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Expires: 2017-01-10
Abstract
Abstract Telecommunications traffic is transported between first and second narrow band networks across an ATM network. Traffic from users of the first narrow band network is packetised into structured blocks within ATM cells. Each cell is provided with a respective control information field and with a header for routing the cells across the ATM network to the second narrow band network. The control information field incorporates a length indicator indicative of the size of the structured blocks within that cell whereby to control recovery of the user traffic from the cell.
Inventors
- 👤 Keith Caves
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:45
CPC Classifications
H; H04; H04Q; H04Q11/00; H04Q11/04; H04Q11/0428; H04Q11/0478; H04L; H04L12/00; H04L12/54; H04L12/56; H04L12/5601; H04L2012/5625; H04L2012/5627; H04L2012/5638; H04L2012/5646; H04L2012/5647; H04L2012/565; H04L2012/5652
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
147 words
A method of transporting traffic between first and second narrow band networks across an asynchronous transfer mode (ATM) network, the method including multiplexing traffic from users of the first narrow band network into structured blocks within ATM cells, providing each cell with a respective single control information field (CIF) and a header, transmitting the cells across the ATM network to the second narrow band network, and demultiplexing the user traffic from the transmitted cells, characterised in that said control information field incorporates a length indicator (LI) indicative of the size of the structured blocks within that cell whereby to define the demultiplexing process, that changes in structured block size are signalled via a change indicator (CI) contained in the control information field, and that transport of user information or of signalling information is denoted by a single bit information/signalling (I/S) indicator contained in the control information field.
Claim 2
Independent Claim
147 words
A method of transporting traffic between first and second narrow band networks across an asynchronous transfer mode (ATM) network, the method including multiplexing traffic from users of the first narrow band network into structured blocks within ATM cells, providing each cell with a respective single control information field (CIF) and a header, transmitting the cells across the ATM network to the second narrow band network, and demultiplexing the user traffic from the transmitted cells, characterised in that said control information field incorporates a length indicator (LI) indicative of the size of the structured blocks within that cell whereby to define the demultiplexing process, that changes in structured block size are signalled via a change indicator (CI) contained in the control information field, and that transport of user information or of signalling information is denoted by a single bit information/signalling (I/S) indicator contained in the control information field.
Claim 3
Dependent Claim
28 words
A method as claimed in claim 1 , characterised in that the control information field is provided with a sequence number whereby to identify missing or misinserted cells.
Claim 4
Dependent Claim
28 words
A method as claimed in claim 1 , characterised in that the control information field is provided with a sequence number whereby to identify missing or misinserted cells.
Claim 5
Dependent Claim
18 words
A method as claimed in claim 1 , characterised in that said traffic comprises narrow band voice traffic.
Claim 6
Dependent Claim
150 words
An arrangement for transporting traffic between first and second narrow band networks across an ATM network, the arrangement including means for multiplexing traffic from users of the first narrow band network into structured blocks within ATM cells, means for providing each cell with a respective single control information field and a header, means for transmitting the cells across the ATM network to the second narrow band network, and means for demultiplexing the user traffic from the transmitted cells, characterised in that said control information field incorporates a length indicator indicative of the size of the structured blocks within that cell whereby to define the demultiplexing process, that changes in structured block size are signalled via a change indicator (CI) contained in the control information field, and that transport of user information or of signalling information is denoted by a single bit information/signalling (I/S) indicator contained in the control information field.
Claim 7
Dependent Claim
150 words
An arrangement for transporting traffic between first and second narrow band networks across an ATM network, the arrangement including means for multiplexing traffic from users of the first narrow band network into structured blocks within ATM cells, means for providing each cell with a respective single control information field and a header, means for transmitting the cells across the ATM network to the second narrow band network, and means for demultiplexing the user traffic from the transmitted cells, characterised in that said control information field incorporates a length indicator indicative of the size of the structured blocks within that cell whereby to define the demultiplexing process, that changes in structured block size are signalled via a change indicator (CI) contained in the control information field, and that transport of user information or of signalling information is denoted by a single bit information/signalling (I/S) indicator contained in the control information field.
Claim 8
Dependent Claim
28 words
An arrangement as claimed in claim 5 , characterised in that the control information field is provided with a sequence number whereby to identify missing or misinserted cells.
References Cited (Backward Citations)
EP0225714A1
Cited
US5430715A
Cited
US5761343A
Cited
US5805933A
Cited
US5774469A
Cited
US6021135A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-04-30 | 2004-10-30 | 2005-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-04-30 | 2008-10-30 | 2009-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-04-30 | 2012-10-30 | 2013-05-01 | $7700.00 | Window Closed / Lapsed |