WO2001095583A2 - Verfahren zum übertragen von sprachinformationen über ein internetprotokoll - Google Patents
Verfahren zum übertragen von sprachinformationen über ein internetprotokoll Download PDFInfo
- Publication number
- WO2001095583A2 WO2001095583A2 PCT/DE2001/001976 DE0101976W WO0195583A2 WO 2001095583 A2 WO2001095583 A2 WO 2001095583A2 DE 0101976 W DE0101976 W DE 0101976W WO 0195583 A2 WO0195583 A2 WO 0195583A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tunnel
- protocol
- ppp
- mpls
- nodes
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/82—Miscellaneous aspects
- H04L47/825—Involving tunnels, e.g. MPLS
-
- 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]
- H04L12/46—Interconnection of networks
- H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/50—Routing or path finding of packets in data switching networks using label swapping, e.g. multi-protocol label switch [MPLS]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/72—Admission control; Resource allocation using reservation actions during connection setup
- H04L47/724—Admission control; Resource allocation using reservation actions during connection setup at intermediate nodes, e.g. resource reservation protocol [RSVP]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/80—Actions related to the user profile or the type of traffic
- H04L47/801—Real time traffic
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/04—Protocols for data compression, e.g. ROHC
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/40—Network security protocols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/006—Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1101—Session protocols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
- H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
- H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
- H04L69/324—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the data link layer [OSI layer 2], e.g. HDLC
Definitions
- the invention relates to a method according to the preamble of claim 1.
- VoIP Voice over IP
- Protocols such as e.g. TCP / IP or UDP / IP crystallized out.
- the TCP protocol is backed up, i.e. if a parcel is lost, it will be requested and transferred again.
- UDP User Datagram Protocol
- the packets carrying voice information are usually relatively small (useful part approx. 40 - 80 bytes).
- the useful part of the packet carrying the useful information is preceded by a header, which also has a size of approximately 40 bytes.
- this means that, in extreme cases, a speech packet to be transmitted has a useful part of 40 bytes, which is preceded by a header of approximately the same size.
- the packet thus has an overhead of 100%, so that the bandwidth efficiency of such a solution can be regarded as very low.
- tunnel-based methods compression takes place end to end at the entrance / exit nodes of the tunnel.
- a tunnel is initially set up between 2 nodes, through which the voice information is later transmitted.
- the tunnel is set up via a signaling packet sent at the start of the transmission or administratively. Since the voice information is transmitted in the tunnel, it is invisible to the nodes in between.
- Another known method uses the known L2TP protocol as a tunnel protocol, with the help of which both PPP multiplexing and RTP header compression end-end is realized.
- This proposed solution has the advantage of being compatible with the standardized RTP header compression.
- multiple language packs can be combined into one larger pack.
- the problem here is that only a reduction of the header to about half of the original 40 bytes can be achieved here.
- the quality of service particularly high because, for example, no resources can not be reserved (Getting Connected loose proto ⁇ col).
- the present invention has for its object to show a way how a more efficient transmission of voice information over IP networks can be achieved.
- An advantage of the invention is that the MPLS tunnel mechanism is used instead of the known L2TP tunnel mechanism. This gives better efficiency.
- RTP compression and PPP multiplexing are implemented within an MPLS tunnel.
- Another advantage of the invention is that there are no sequence errors. Appropriate parameterization can be used to ensure that the packet sequence is preserved within the tunnel. A reconstruction of the original packet order as with L2TP is therefore not necessary.
- the procedure according to the invention entails high reliability.
- an MPLS tunnel equipped with MPLS Protection Switching can be switched over or restored very quickly in the event of an error.
- L2TP is from the convergence of IP routing Protocol dependent, so that node or line failures can lead to interruptions of several 10 seconds.
- a particular advantage of the invention can be seen in a controlled selection of the routes in that the route of an MPLS tunnel in the network can be influenced directly by the operator.
- MPLS Explicit Routing individual nodes or groups of nodes can be specified along the way. In this way the Pubver- can be specifically controlled traffic through the network to bypass example ⁇ as slow unreliable lines or.
- Fig. 1 shows a packet format for the transmission of PPP in
- the PPP protocol field directly follows the MPLS header.
- the PPP user data can contain, for example, several compressed RTP packets. This results in a minimum overhead of 4 bytes per language packet, plus MPLS and PPP headers of 5 or 6 bytes. With 10 voice packets of 40 bytes each in an MPLS packet, this results in a bandwidth efficiency of 400/446 or around 90%.
- a first step the establishment of a unidirectional MPLS tunnel is initiated from one side.
- the construction of the tunnel is done using the TE-RSVP signaling protocol ⁇ .
- the value 0x88OB for PPP must be specified here.
- the session attribute object of the TE-RSVP signaling protocol contains a session name, which is in principle freely selectable. However, the session name must uniquely identify the tunnel for input and output nodes. The session name together with the IP addresses of input and output nodes must therefore be unique.
- the LSP tunnel session object must contain the IP address of the input node as an extended tunnel ID. This address will later be used for addressing when building the tunnel in the reverse direction.
- a bandwidth is usually reserved for the tunnel and special delay requests can be signaled.
- the tunnel is built in the forward direction.
- the tunnel is now built in the reverse direction.
- Tunnel exit (seen in the forward direction) recognizes from the PPP protocol type that bidirectional communication is necessary and in turn initiates the construction of the tunnel in the reverse direction. Both protocol type and session
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Communication Control (AREA)
Abstract
Description
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2001267320A AU2001267320A1 (en) | 2000-06-07 | 2001-05-22 | Method for transmitting voice information via an internet protocol |
EP01944956A EP1287660A2 (de) | 2000-06-07 | 2001-05-22 | Verfahren zum übertragen von sprachinformationen über ein internetprotokoll |
CA002411677A CA2411677A1 (en) | 2000-06-07 | 2001-05-22 | Method for transmitting voice information over an internet protocol |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10028143.5 | 2000-06-07 | ||
DE10028143 | 2000-06-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2001095583A2 true WO2001095583A2 (de) | 2001-12-13 |
WO2001095583A3 WO2001095583A3 (de) | 2002-06-27 |
Family
ID=7644964
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2001/001976 WO2001095583A2 (de) | 2000-06-07 | 2001-05-22 | Verfahren zum übertragen von sprachinformationen über ein internetprotokoll |
Country Status (6)
Country | Link |
---|---|
US (1) | US20030149718A1 (de) |
EP (1) | EP1287660A2 (de) |
CN (1) | CN1436417A (de) |
AU (1) | AU2001267320A1 (de) |
CA (1) | CA2411677A1 (de) |
WO (1) | WO2001095583A2 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1379036A1 (de) * | 2002-07-03 | 2004-01-07 | Alcatel | System und Verfahren für den automatischen Aufbau eines Etikettvermittlungsweges(LSP) in Rückwärtsrichtung |
WO2006052117A1 (en) * | 2004-11-15 | 2006-05-18 | Samsung Electronics Co., Ltd. | Apparatus and method for compressing headers in a broadband wireless communication system |
WO2007030988A1 (fr) * | 2005-09-14 | 2007-03-22 | Huawei Technologies Co., Ltd. | Procede destine a mettre en place un systeme et un tunnel d'ingenierie de trafic bidirectionnel ainsi que le routeur correspondant |
WO2009006484A1 (en) | 2007-07-02 | 2009-01-08 | Silicon Image, Inc. | Operation of media interface to provide bidirectional communications |
EP2216942A1 (de) * | 2008-05-08 | 2010-08-11 | Huawei Technologies Co., Ltd. | Verfahren zum aufbauen eines tunnels und system zur realisierung eines tunnelaufbaus |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7467018B1 (en) | 2002-11-18 | 2008-12-16 | Rockwell Automation Technologies, Inc. | Embedded database systems and methods in an industrial controller environment |
US20060133412A1 (en) * | 2004-12-22 | 2006-06-22 | Rockwell Automation Technologies, Inc. | Integration of control and business applications using integration servers |
US7706895B2 (en) * | 2005-02-25 | 2010-04-27 | Rockwell Automation Technologies, Inc. | Reliable messaging instruction |
CN100338928C (zh) * | 2005-03-04 | 2007-09-19 | 中国人民解放军理工大学 | 在无线网络中建立双向虚电路的方法 |
US7565351B1 (en) | 2005-03-14 | 2009-07-21 | Rockwell Automation Technologies, Inc. | Automation device data interface |
US8488616B2 (en) * | 2005-04-05 | 2013-07-16 | Cisco Technology, Inc. | Building multipoint-to-multipoint label switch paths |
US7233830B1 (en) * | 2005-05-31 | 2007-06-19 | Rockwell Automation Technologies, Inc. | Application and service management for industrial control devices |
KR100723873B1 (ko) * | 2005-12-08 | 2007-05-31 | 한국전자통신연구원 | 멀티 프로토콜 레이블 스위칭 네트워크 시스템에서 고품질서비스 제공 방법 및 장치 |
US7899044B2 (en) * | 2006-06-08 | 2011-03-01 | Alcatel Lucent | Method and system for optimizing resources for establishing pseudo-wires in a multiprotocol label switching network |
US20090016334A1 (en) * | 2007-07-09 | 2009-01-15 | Nokia Corporation | Secured transmission with low overhead |
CN101237699B (zh) * | 2008-02-29 | 2010-12-08 | 中兴通讯股份有限公司 | 无线网络节点与接入服务器之间建立多隧道的控制方法 |
CN101415005B (zh) | 2008-11-24 | 2013-04-17 | 华为技术有限公司 | 一种实现业务转发的方法、系统和设备 |
CN104954593A (zh) * | 2015-05-19 | 2015-09-30 | 重庆金美通信有限责任公司 | Voip资源预留和传输压缩实施方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6466985B1 (en) * | 1998-04-10 | 2002-10-15 | At&T Corp. | Method and apparatus for providing quality of service using the internet protocol |
US6507577B1 (en) * | 1998-11-12 | 2003-01-14 | Nortel Networks Limited | Voice over internet protocol network architecture |
US6522627B1 (en) * | 1998-11-12 | 2003-02-18 | Nortel Networks Limited | Managing internet protocol connection oriented services |
US6680943B1 (en) * | 1999-10-01 | 2004-01-20 | Nortel Networks Limited | Establishing bi-directional communication sessions across a communications network |
-
2001
- 2001-05-22 AU AU2001267320A patent/AU2001267320A1/en not_active Abandoned
- 2001-05-22 CA CA002411677A patent/CA2411677A1/en not_active Abandoned
- 2001-05-22 US US10/276,097 patent/US20030149718A1/en not_active Abandoned
- 2001-05-22 EP EP01944956A patent/EP1287660A2/de not_active Withdrawn
- 2001-05-22 CN CN01810905A patent/CN1436417A/zh active Pending
- 2001-05-22 WO PCT/DE2001/001976 patent/WO2001095583A2/de not_active Application Discontinuation
Non-Patent Citations (5)
Title |
---|
AWDUCHE D ET AL.: "Requirements for Traffic Engineering Over MPLS (RFC 2702)" REQUEST FOR COMMENT, [Online] September 1999 (1999-09), XP002185031 Gefunden im Internet: <URL:http://www.simpleweb.org/ietf/rfcs/co mplete/rfc2702.txt> [gefunden am 2001-11-28] * |
See also references of EP1287660A2 * |
THEIMER T: "Tunneling Multiplexed Compressed RTP in MPLS" INTERNET DRAFT, Juni 2000 (2000-06), Seiten 1-10, XP002185030 * |
WILLIS D: "Integrating voice and data" NETWORK COMPUTING, 18 OCT. 1999, CMP MEDIA INC, USA, Bd. 10, Nr. 21, Seiten 50-52, 54, 56, 58, 60, 64, 66, 68, 71, 73, XP001050317 ISSN: 1046-4468 * |
XIAO X ET AL: "INTERNET QOS: A BIG PICTURE" IEEE NETWORK, IEEE INC. NEW YORK, US, Bd. 13, Nr. 3, M{rz 1999 (1999-03), Seiten 8-18, XP000875017 ISSN: 0890-8044 * |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1379036A1 (de) * | 2002-07-03 | 2004-01-07 | Alcatel | System und Verfahren für den automatischen Aufbau eines Etikettvermittlungsweges(LSP) in Rückwärtsrichtung |
US8014380B2 (en) | 2002-07-03 | 2011-09-06 | Alcatel Lucent | Method and system for automatically establishing a return label switched path |
WO2006052117A1 (en) * | 2004-11-15 | 2006-05-18 | Samsung Electronics Co., Ltd. | Apparatus and method for compressing headers in a broadband wireless communication system |
WO2007030988A1 (fr) * | 2005-09-14 | 2007-03-22 | Huawei Technologies Co., Ltd. | Procede destine a mettre en place un systeme et un tunnel d'ingenierie de trafic bidirectionnel ainsi que le routeur correspondant |
WO2009006484A1 (en) | 2007-07-02 | 2009-01-08 | Silicon Image, Inc. | Operation of media interface to provide bidirectional communications |
US7836223B2 (en) | 2007-07-02 | 2010-11-16 | Silicon Image, Inc. | Operation of media interface to provide bidirectional communications |
EP2216942A1 (de) * | 2008-05-08 | 2010-08-11 | Huawei Technologies Co., Ltd. | Verfahren zum aufbauen eines tunnels und system zur realisierung eines tunnelaufbaus |
EP2216942A4 (de) * | 2008-05-08 | 2013-02-20 | Huawei Tech Co Ltd | Verfahren zum aufbauen eines tunnels und system zur realisierung eines tunnelaufbaus |
US8472450B2 (en) | 2008-05-08 | 2013-06-25 | Huawei Technologies Co., Ltd. | Method and system for establishing tunnels |
US9118556B2 (en) | 2008-05-08 | 2015-08-25 | Huawei Technologies Co., Ltd. | Method and system for establishing tunnels |
Also Published As
Publication number | Publication date |
---|---|
US20030149718A1 (en) | 2003-08-07 |
CA2411677A1 (en) | 2001-12-13 |
CN1436417A (zh) | 2003-08-13 |
EP1287660A2 (de) | 2003-03-05 |
WO2001095583A3 (de) | 2002-06-27 |
AU2001267320A1 (en) | 2001-12-17 |
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