Patent EP0679042A2 successfully refreshed from Google Patents.
EP0679042A2
Expired / Lapsed
EP
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Improvements in or relating to mobile communication ATM networks
Assignee: Siemens AG
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Filing: 1995-04-21
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Granted: —
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Expires: 2015-04-21
Abstract
Abstract The asynchronous transfer mode (ATM) communication network comprising at least one mobile terminal arranged to be in radio communication with a plurality of base stations. The base stations are connected to an access network by way of sub-network and a sub-network interference unit. The access network is connected to a mobile network interface unit. Each sub-network interface and each mobile network interface unit includes splitting/combining means arranged to operate so that a mobile terminal can be affiliated to one or more base stations at any one time. <IMAGE>
Inventors
- 👤 Michael John Mctiffin
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 19:40
CPC Classifications
H; H04; H04W; H04W36/00; H04W36/16; H04W36/18; H04B; H04B7/00; H04B7/02; H04B7/022
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
91 words
An asynchronous transfer mode (ATM) communication network comprising at least one mobile terminal arranged to be in radio communication with a plurality of base stations, said base stations being connected to an access network by way of sub-network and a sub-network interference unit, said access network being connected to a mobile network interface unit, characterised in that each sub-network interface unit and each mobile network interface unit includes splitting/combining means arranged to operate so that a mobile terminal can be affiliated to one or more base stations at any one time.
Claim 2
Dependent Claim
42 words
An ATM communication network as claimed in Claim 1, wherein a particular route across the network is identified by a virtual path identifier which identifies a particular base station or a particular sub-network interface unit, or a particular mobile network interface unit.
Claim 3
Dependent Claim
85 words
An ATM network as claimed in Claim 2, wherein if the sub-network interface unit is performing the splitting/combining function, the paths are identified by the values VPI A and VPI B , and if the mobile network interface unit is performing a splitting/combining function the paths are identified as VPI M and VPI C , and if a path includes a sub-network interface unit, it will pass the data transparently changing the value of the VPI M value to VPI A and VPI B .
Claim 4
Dependent Claim
76 words
An ATM network as claimed in Claim 3, wherein upon receipt of an affiliation request message the sub-network interface unit decides whether it is aware of a connection using a quoted virtual channel identifier (VCI), and if so assigns a splitter/combiner to the connection, if not, it passes the message on having changed the VPI value to show the mobile network interface unit that it is the next point on the connection to the mobile terminal.
Claim 5
Dependent Claim
75 words
An ATM network as claimed in Claim 3, wherein upon receipt of a deaffiliation request message the sub-network interference unit decides whether it has assigned a splitter/combiner to the connection with the quoted virtual channel identifier (VCI), and if so de-assigns the splitter/combiner, if not, it passes the message on having changed the VPI value to show the mobile network interface unit that it is the next point on the connection to the mobile terminal.
Claim 6
Dependent Claim
129 words
An ATM network as claimed in any preceding claim, wherein the method of assigning splitter/combiners to a connection comprise the steps of: affiliate the mobile terminal to the base station A only, the mobile terminal requests affiliation to the base station B quoting the VCI for the connection, and allocating a splitter/combiner at the sub-network interface unit, the mobile terminal deaffiliates from the base station A, and the connection reverts to the state it was originally, but connected to base station B, the mobile terminal requests affiliation to the base station C, if base station C is on a different sub-network the sub-network is ignorant of the VCI value, and the message is passed to the mobile network interface unit, the mobile terminal deaffiliates from the base station B.
Claim 7
Dependent Claim
39 words
An ATM network as claimed in Claim 6, wherein if a splitter/combiner at a sub-network interface unit is required, and not available, the connection is routed to the mobile network interface unit where the splitting/combining function is carried out.
References Cited (Backward Citations)
No citation records indexed.
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