WO1999016213A2 - Premier et second reseau partageant une technologie de transmission commune sur le meme bus physique - Google Patents

Premier et second reseau partageant une technologie de transmission commune sur le meme bus physique Download PDF

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Publication number
WO1999016213A2
WO1999016213A2 PCT/SE1998/001661 SE9801661W WO9916213A2 WO 1999016213 A2 WO1999016213 A2 WO 1999016213A2 SE 9801661 W SE9801661 W SE 9801661W WO 9916213 A2 WO9916213 A2 WO 9916213A2
Authority
WO
WIPO (PCT)
Prior art keywords
ats
atm
transmission system
isochronous
network
Prior art date
Application number
PCT/SE1998/001661
Other languages
English (en)
Other versions
WO1999016213A3 (fr
Inventor
Conny Carlsson
Ala Nazari
Kim Laraqui
Original Assignee
Telia Ab (Publ)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Telia Ab (Publ) filed Critical Telia Ab (Publ)
Publication of WO1999016213A2 publication Critical patent/WO1999016213A2/fr
Publication of WO1999016213A3 publication Critical patent/WO1999016213A3/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/40052—High-speed IEEE 1394 serial bus
    • H04L12/40058—Isochronous transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2801—Broadband local area networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/40052—High-speed IEEE 1394 serial bus
    • H04L12/40065—Bandwidth and channel allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/40052—High-speed IEEE 1394 serial bus
    • H04L12/40097—Interconnection with other networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/40052—High-speed IEEE 1394 serial bus
    • H04L12/40117—Interconnection of audio or video/imaging devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H04Q11/0478—Provisions for broadband connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5614—User Network Interface
    • H04L2012/5618—Bridges, gateways [GW] or interworking units [IWU]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5629—Admission control
    • H04L2012/563—Signalling, e.g. protocols, reference model
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5638—Services, e.g. multimedia, GOS, QOS
    • H04L2012/5646—Cell characteristics, e.g. loss, delay, jitter, sequence integrity
    • H04L2012/5651—Priority, marking, classes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5638—Services, e.g. multimedia, GOS, QOS
    • H04L2012/5664—Support of Video, e.g. MPEG
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5638—Services, e.g. multimedia, GOS, QOS
    • H04L2012/5665—Interaction of ATM with other protocols

Definitions

  • the present invention relates to a transmission system comprising a first network and a second network.
  • DAVIC has defined two networks for the Service Consumer System (Home environment), the Home Access Network (HAN) and the Home LAN (HLN) as can be seen in Figure 1. Discussions so far have lead to the assumption that ATM is to be carried over the HAN, but probably not over the HLN.
  • Access Termination System (ATS) devices are connected to the HAN, and must by definition understand the access network protocol. Hence, for an ATM system the ATS is ATM capable.
  • the End Termination Systems (ETS) are simpler devices, which need to go through an ATS when communicating with the access network.
  • the User Premises Interface supports the connection of multiple ATS equipment to the access network. It provides media conversion between the access network and the home network.
  • the object of the present invention is to solve this problem.
  • a transmission system comprising a first network and a second network, wherein said both networks share one and the same trans- mission technology, which technology carries both said networks over the same physical bus.
  • ATM be transported over IEEE 1394 and terminated in devices acting as ATSs . It is also recommended that ATM cells be transported both in isochronous packets and in asynchronous packets, depending on the requested ATM service category.
  • Figure 1 is a DAVIC home network according to prior art
  • Figure 2 is a scenario for the home environment according to the present invention.
  • Figure 3 discloses ATM cells in asynchronous write packets ;
  • Figure 4 discloses asynchronous write packets of IEEE 1394;
  • Figure 6 is the protocol architecture between the ATS and the ATM switch of the core;
  • Figure 7 discloses ATM in isochronous packets;
  • Figure 8 discloses a MPEG-2 over ATM.
  • FIG. 1 discloses an example of a physical configuration scenario for home environment. It is to be observed that the Residential Gateway (RG) consists of functional elements UPI and NT. ATM will be used on the HAN and terminated at the ATS which is an ATM capable terminal . It could also be utilised in the HLN for intra-home applications but this is outside the scope of this invention.
  • RG Residential Gateway
  • the main task for the UPI will in this case be to relay ATM cells between the access net- work and the IEEE 1394 bus.
  • Another important task of the UPI is to provide traffic management functionality outlined later. This is performed by using separate cell buffering for each supported service category (e.g. CBR, UBR) .
  • CBR Common Services Inc.
  • UBR Universal Mobile Broadcast
  • RG Residential Gateway
  • ATM cells are transported between the RG and the ATSs, thus creating a logical ATM HAN.
  • Other devices are connected to the same physical network, but have to go through an ATS to communicate with the access network. Logically, such a device exists on the HLN.
  • the delay sensitive ATM service categories e.g. CBR, real-time VBR
  • isochronous packets and non real-time traffic e.g. UBR
  • FIG. 3 depicts one possible solution to transport ATM cells in asynchronous write packets.
  • Each ATS is assigned an ATM address and a VPC (Virtual Path Connection) that terminates at the ATM switch of the core.
  • the ATM address may by an E.164 or an ATM-Forum NSAP address of E.164 format.
  • E.164 the world-wide unique 64-bit ID (EUI-64) of the ATS could be used for the DSP (Domain Specific Part) of the NSAP address.
  • EUI-64 world-wide unique 64-bit ID
  • DSP Domain Specific Part
  • the RG multiplexes the VPs onto a single physical UNI towards the access network.
  • Associated signalling of Q.293 is applied on the VPs.
  • ILMI Integrated Local Management Interface
  • These messages use the UBR service category, which is transmitted in asyn- chronous packets.
  • a unique VPI distinguishes between individual users . In UNI 4.0 this configuration is referred to as virtual UNIs .
  • the RG is entirely transparent for the signalling and ILMI messages.
  • the call control entities reside at the ATS and the core ATM switch.
  • the ATS and the switch implement the user IME (Interface Management Entity) and the network IME respectively.
  • ILMI provides the auto configuration of many ATM parameters including the ATS ' s ATM address and a service registry with ATM addresses to serves of various kinds. This registry also provides a simple mechanism for the core ATM switch to communicate addresses to new services to the ATS.
  • the ATS starts up, the ILMI connectivity is established between these entities and tested periodically through the ILMI link management procedures. If NSAP addressing is used, ILMI delivers the network prefix of each address while the ATS supplies its EUI-64.
  • the ATS allocates more bandwidth and instructs the RG to modify the payload field of the corresponding output plug, by using the connection control message.
  • the VCI domain in each VP be partitioned into a number of portions, each dedicated for a specific service category. For instance, VCI values between 35 and 60 may be devoted for CBR VCs. This enables the RG to conclude the service category of each VC based on its VCI value.
  • the assignment of VCI values is done by the ATS for both network initiated and ATS initiated ATM connection. To indicate the required VCI value, the ATS relies on the preferred/exclusive and VCI fields of the connection identifier information element of the call messages. If the above method is not adopted, a simple protocol can be defined between the CME of ATS and its peer at the RG to indicate the service category for each established VC .
  • RG's key function is traffic handling.
  • Predefined VCI ranges enable the RG to handle cell streams according to their service categories.
  • CBR traffic gets the highest priority and is always transmitted first.
  • the CBR buffer has space for one hundred cells whereas the UBR buffer has space to store at least one thousand cells.
  • the RG may also perform a packet discard mechanism for UBR traffic.
  • the ATS performs traffic shaping for each CBR/VBR VC .
  • the switch For each requested VC, the switch performs connection admission control and reserves the resources required in the access network by using network management or some proxy mechanism. Traffic policing is performed by the access node that receives the parameters to be policed from the switch.
  • the RG maps CBR traffic to isochronous channels towards the ATS, and the UBR traffic to asynchronous packets to the destination Node ID of the ATS. It is a simple VP multiplexer transparent for signalling and ILMI traffic between the ATS and the switch. From the outset, the RG is configured with a number of permanent VPCs (e.g. 6) set-up by the switch through network management. When a new ATS is plugged in, it gets a VPC from the RG using a very simple procedure described below. This VPC is used for all communication between the ATS and the switch. The VPC is up as long as there is ILMI connectivity between the ATS and the switch. It is assigned an isochronous channel only when one or more of its VCs are of CBR or real-time VBR type.
  • the RG has a number of VP connections set up between itself and the ATM switch. The number of VPCs should be sufficient for the ATSs . For each VP the RG finds an output/input plug. These plugs will reserved for VP links to ATSs. The plug index is identical to the VPI value to be used for this plug in the home network. Since the plug index is unique at the RG, so is the VPI value. To indicate that these plugs are reserved (but not yet allocated) , the point to point field is set to 63 (dummy value) and the on-line bit is set to zero (off-line) . The plug is then in a suspended mode .
  • the RG Upon each bus reset the RG broadcasts an RG identification message to tell the ATS devices its current Node ID. For this purpose the RG relies on the asynchronous write request destined to the local bus broadcast ID of 0x3FF and 6 bit physical ID of 0x3F. The destination offset of the message is the CME of the ATSs. Another, but less flexible solution to identify the RG is that the ATS is preconfigured with the unique 64 bit ID (EUI-64) of the RG.
  • EUI-64 unique 64 bit ID
  • the RG maintains a table that relates VPI to Node ID and plugs.
  • the table also describes the service category of established VCs, see Figure 5.
  • the ATS obtains one of the reserved VP links for traffic towards the RG. First it finds a free output plug (VPI) on the RG by reading the on-line bit and the point_to_point field. When it finds an off-line output plug with the point_to_point value of 63 it sends the connection control message to the RG .
  • the fields in the message have the following values :
  • the message tells the RG that the ATS requests this plug (VPI), but no isochronous channel is allocated yet.
  • the CME of the RG checks if the output plug index is still free, and if so it zeroes the point_to_point field, sets the on-line bit and stores the VPI and the Node ID of the ATS in its mapping table. The plug is then in "Ready" mode. The Node ID is found in the source ID of the asynchronous packet. Finally it returns an identical message indicating a successful allocation.
  • the RG sends back the same message, but with the output plug index set to zero, which indicates a non successful allocation. These messages are sent in an acknowledged mode. If the VPI allocation fails the ATS will try to find another VPI.
  • the ILMI IME at the ATS contacts its peer at the switch by sending coldStart Trap.
  • the ATS is also assigned an ATM address by the switch.
  • the ATS can set up VCs using the VP associated signalling of Q.2931. For UBR traffic the ATS does not need to set up any isochronous channel .
  • the ATS sends the call set-up message in which the connection identifier information element carries exclusive VPI/exclusive VCI.
  • the VCI value is chosen from the predefined VCI range for UBR (e.g. 70) .
  • the ATS has to be aware of how the RG has partitioned the VCI range with respect to traffic management.
  • the RG is entirely transpa- rent for signalling messages.
  • the switch assigns the requested VCI.
  • the ATS can now use the new VCI for UBR traffic.
  • the ATS and the RG maps the new VCI to asynchronous packets , according to the predefined mapping between VCI range and service category.
  • the switch uses the exclusive VPI/ any VCI in the call SET-UP message to ask the ATS for which VCI to assign for the connection.
  • the ATS finds out that the set-up request is for UBR traffic and chooses an available VCI value, predefined for UBR (e.g. 75).
  • the selected value is indicated in the first message returned by the ATS in response to the SET-UP message (e.g. the connection identifier information element of the CALL PROCEEDING message) .
  • the ATS can now use the new VCI for UBR traffic.
  • the ATS and the RG map the new VCI to asynchronous packets .
  • CBR VC Connection set-up of a CBR VC when the ATS is the originator
  • the signalling procedures for CBR VCs are the same as for UBR. The difference is that an isochronous channel with the specific bandwidth needs to be allocated.
  • ATS must allocate a channel and the needed isochronous bandwidth for each direction. This is done by lock request messages with an extended transaction code of compare and swap to the BANDWIDTH_AVAILABLE register at the isochronous resource manager. Available input output plugs on the ATS are selected and their on-line bits are set. The ATS establishes the upstream channel by connecting its output plug to the RG input plug, reserved for the ATS VP links. It then instructs the RG to connect the RG output plug to the ATS input plug indicated in the connection control message. The message also carry the channel number and the payload to be used for the connection. When the connections are established the ATS starts signalling towards the ATM switch. The set-up of channels and plugs may also be done during the ATM call set-up procedure .
  • the establishment of the ATM connection follow the same procedure as for UBR, except that the VCI value is chosen from the CBR VCI range.
  • the ATS can then use the new VCI for CBR traffic.
  • the ATS and RG map the new VCI to isochronous packets according to the predefined mapping between VCI range and service cate- gory. Traffic shaping on the VC is performed by the ATS.
  • the establishment of the ATM connection follow the same procedure as for UBR, except that the VCI value is chosen from the CBR VCI range.
  • the ATS establishes the required connections over the IEEE 1394 bus following the same procedures as above.
  • the ATS allocates more bandwidth to the already established channel (s), modifies the payload filed of its own output plug and finally instructs the RG to modify its output plug, using the connection control message.
  • both the ATS and the RG must first zero their point_to_point fields, change the payload and re-establish the connections. This procedure may take 2-4 isochronous cycles ( ⁇ 0.5 ms).
  • the ATS tears down the upstream connection, instructs the RG to tear down the downstream connection and finally deallocates the isochronous resources .
  • the Node IDs will not be the same after a bus reset since a new tree ID and self ID process have been carried out.
  • the Node IDs are automatically determined depending on the current configuration of the network.
  • a bus reset does not require a new VPI value assignment, but it does require the RG to broadcast its new Node ID.
  • Node IDs for each ATS also need to be updated in the VPI/Node ID table of the RG . This is solved by sending the connection control message immediately when the ATS has re-established the isochronous resources and has received the now Node ID of the RG.
  • This message also instruct the RG to re-establish the downstream connection to the ATS (connecting their plugs) .
  • the ATS will also re-establish its upstream connection.
  • the ATS re-establishes its ILMI connectivity with the switch.
  • the ILMI connectivity When the terminal shuts down, the ILMI connectivity will be broken. The latter will be detected by the RG, which monitors all allocated VPs. After a specific time the allocated VP is released by setting the corresponding plugs off-line and setting the point_to_point field to the dummy value of 63. The switch also removes the ATS from its ILMI MIB.
  • ILMI and Q.2931 reside at the ATS and the switch.
  • the CME runs directly of the link layer of IEEE 1394. It runs on the HAN only.
  • the useful bandwidth in IEEE 1394 depends on how the bus is organised.
  • the isochronous cycle of 125 ⁇ s is divided into 6144 Bandwidth Units (BWUs) .
  • Isochronous traffic can use 80% of that bandwidth, i.e. 4915 BWUs.
  • One BWU corresponds roughly to 20 ns .
  • I BWU is equivalent to 16 kbps .
  • the total available bandwidth for isochronous traffic is about 78 Mbps.
  • the minimum payload is one quadlet, which is equal to 256 kbps (16 BWU) .
  • Video streaming (MPEG-2 SPTS) 3-10 Mbps
  • Two-way non-real-time applications 2 Mbps bidirectional
  • the invention proposes that realtime traffic be transported in isochronous packets and that non-real-time traffic use asynchronous packets.
  • Table 1 the needed bandwidths for transmitting ATM at different rates are shown. It also presents the number of channels which can be transmitted simultaneously at that rate over a 100 Mbps IEEE 1394 bus.
  • a customer can for instance watch one high quality movie (9 Mbps) , one regular quality movie (6 Mbps) and have a video conference (3 Mbps bi-direction) simultaneously, and still have more than 30 Mbps available (maximum 14 Mbps for isochronous) for other internal or external services. If a more efficient allocation of overhead bandwidth is used, the flexibility increases significantly. In the example above the user can simultaneously receive two 9 Mbps movies, two 6
  • MULTI PROGRAM TRANSPORT STREAM However, an open issue, is how to connect broadcast types of services (e.g. Satellite and Cable TV) to the IEEE 1394 network. The problem is that these systems use MPEG-2 MPTS, which requires a bandwidth of 38 Mbps. This corresponds to an allocation of 13 ATM cells per isochronous cycle (3200 BWUs) .
  • the preferred solution is to extract the requested channel out of the MPTS and instead send it as an SPTS .
  • this would require remultiplexing before entering the IEEE 1394 network, which is currently expensive and thus not possible.
  • remultiplexing one of the following solutions can be adopted.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Small-Scale Networks (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

La présente invention concerne l'utilisation d'une technologie de transmission à la fois pour un réseau HAN (Home Access Network) et pour un réseau HLN (Home Local Area network). La technologie utilisée pour ces réseaux est IEEE 1394, laquelle porte deux réseaux logiques DAVIC sur le même bus physique. Grâce à cette technologie de transmission, un utilisateur local peut regarder simultanément plusieurs films, suivre une conférence vidéo et disposer d'une capacité disponible pour des services internes et externes.
PCT/SE1998/001661 1997-09-24 1998-09-17 Premier et second reseau partageant une technologie de transmission commune sur le meme bus physique WO1999016213A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9703442A SE521494C2 (sv) 1997-09-24 1997-09-24 Transmissionssystem för hemnätverk
SE9703442-5 1997-09-24

Publications (2)

Publication Number Publication Date
WO1999016213A2 true WO1999016213A2 (fr) 1999-04-01
WO1999016213A3 WO1999016213A3 (fr) 1999-08-12

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004017572A2 (fr) * 2002-07-25 2004-02-26 Siemens Aktiengesellschaft Procede, ensemble de communication et dispositif de communication permettant de transmettre des cellules de memoire par l'intermediaire d'un reseau de communication oriente paquets
US6831899B1 (en) * 2000-08-18 2004-12-14 At&T Corp. Voice and video/image conferencing services over the IP network with asynchronous transmission of audio and video/images integrating loosely coupled devices in the home network

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US5452330A (en) * 1992-07-06 1995-09-19 Digital Equipment Corporation Bus-oriented switching system for asynchronous transfer mode
WO1997028504A1 (fr) * 1996-02-02 1997-08-07 Sony Electronics, Inc. Interface api de transfert de donnees et gestion bus sur une structure bus

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US5452330A (en) * 1992-07-06 1995-09-19 Digital Equipment Corporation Bus-oriented switching system for asynchronous transfer mode
WO1997028504A1 (fr) * 1996-02-02 1997-08-07 Sony Electronics, Inc. Interface api de transfert de donnees et gestion bus sur une structure bus

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Title
DANIEL MOORE, IEEE 1394: The Cable Connection to Complete the Digital Revolution 21st, VXM Technologies, Inc., 15 February 1996, Retrieved from the Internet: <URL:http://www.skiptone.com/ss21st.html. *
GARY HOFFMAN and DANIEL MOORE, IEEE 1394: A Ubiquitous Bus, COMPCON'95, 5-9 March 1995, Retrieved from the Internet: <URL:http://www.skipstone.com/compcon.html. *
JUHANA BRITSCHGI DAVIC, Seminar on Telecommunications Technology, Spring 1997, 25-04-1997, Retrieved from the Internet: <URL:http://www.cs.helsinki.fi/-britschg/davic.html. *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6831899B1 (en) * 2000-08-18 2004-12-14 At&T Corp. Voice and video/image conferencing services over the IP network with asynchronous transmission of audio and video/images integrating loosely coupled devices in the home network
WO2004017572A2 (fr) * 2002-07-25 2004-02-26 Siemens Aktiengesellschaft Procede, ensemble de communication et dispositif de communication permettant de transmettre des cellules de memoire par l'intermediaire d'un reseau de communication oriente paquets
WO2004017572A3 (fr) * 2002-07-25 2004-05-06 Siemens Ag Procede, ensemble de communication et dispositif de communication permettant de transmettre des cellules de memoire par l'intermediaire d'un reseau de communication oriente paquets
DE10233954B4 (de) * 2002-07-25 2008-02-28 Nokia Siemens Networks Gmbh & Co.Kg Verfahren, Kommunikationsanordnung und Kommunikationseinrichtung zum Übermitteln von Datenzellen über ein paketorientiertes Kommunikationsnetz
US7508761B2 (en) 2002-07-25 2009-03-24 Nokia Siemens Networks Gmbh & Co Kg Method, communication arrangement, and communication device for transmitting message cells via a packet-oriented communication network

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SE521494C2 (sv) 2003-11-04
SE9703442D0 (sv) 1997-09-24
SE9703442L (sv) 1999-03-25
WO1999016213A3 (fr) 1999-08-12

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