WO1998039881A1 - Packet-oriented networks - Google Patents

Packet-oriented networks Download PDF

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Publication number
WO1998039881A1
WO1998039881A1 PCT/SE1998/000392 SE9800392W WO9839881A1 WO 1998039881 A1 WO1998039881 A1 WO 1998039881A1 SE 9800392 W SE9800392 W SE 9800392W WO 9839881 A1 WO9839881 A1 WO 9839881A1
Authority
WO
WIPO (PCT)
Prior art keywords
resources
network
traffic
terminal
networks
Prior art date
Application number
PCT/SE1998/000392
Other languages
French (fr)
Inventor
Alexander Latour-Henner
Nils BJÖRKMAN
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)
Priority to EP98908411A priority Critical patent/EP0963641A1/en
Priority to EEP199900395A priority patent/EE03717B1/en
Publication of WO1998039881A1 publication Critical patent/WO1998039881A1/en
Priority to NO19994225A priority patent/NO325115B1/en

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
    • H04L47/822—Collecting or measuring resource availability data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0896—Bandwidth or capacity management, i.e. automatically increasing or decreasing capacities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • 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
    • H04L47/83—Admission control; Resource allocation based on usage prediction
    • 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
    • H04L2012/5616—Terminal equipment, e.g. codecs, synch.
    • 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
    • H04L2012/5631—Resource management and allocation
    • 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
    • H04L2012/5631—Resource management and allocation
    • H04L2012/5636—Monitoring or policing, e.g. compliance with allocated rate, corrective actions

Definitions

  • the present invention relates to a device and a method at a telecommunication network or data communication network which appoints how much network resources, for instance bandwidth, that need to be allocated for a given traffic situation.
  • Packet-oriented networks such as ATM-networks or IP- networks, can handle traffic flows of varying need of resources over the time.
  • resources in form of buffer storage and bandwidth need to be allocated in both terminal and network.
  • the question which the present invention intends to answer is how a terminal automatically can appoint how much resources that need to be allocated for a given situation.
  • One type of situation is a type of recurring events which have similar need of resources from time to time, for instance a certain application, or communication with a certain type of terminal. Because a number of factors have influence on the need of resources, it is difficult to without measurement estimate this only by knowledge of included components such as operative system, application, communication card, communication protocol, type of terminal, and selected configuration of these.
  • packet-oriented networks for instance ATM- networks or IP-networks, it is, as has been mentiond above, in principle possible to allocate just any amount of resources (bandwidth and buffer storage) to a connection.
  • the task to appoint how much resources that will be allocated is for the terminal.
  • the problem with the terminals and/or applications of today, however, is that they are lacking ability to appoint their need of resources .
  • the aim with the present invention consequently is to solve this problem and produce a terminal which can appoint said need of resources.
  • the measuring methods according to the invention have turned out to function very satisfactorily with regard to the appointing of need of resources in a subscriber terminal .
  • the terminal according to the invention is intended to build up own knowledge which makes possible successive optimization of booked resources in a packet-oriented network. This knowledge is built up in two steps and is after each step used to automatically allocate the resources :
  • the terminal attends to an initial measurement to adapt the maximal transmission rate of the terminal to the traffic intensity which the terminal generates for a given situation.
  • the measuring is performed in following steps :
  • the measuring is performed in following steps:
  • the initial measuring to adapt the PCR (Peak Cell Rate) of the terminal to the traffic intensity which the terminal generates for a given situation is performed in the following way: 1. Measure least possible PCR for maximally allowed delay in the buffer to the ATM-shaper of the terminal. The delay can, for instance, be measured by application of the standardized GCRA-algorithm.
  • the invention is preferably used in subscriber terminals in connection with preparations for establishing of the connection over a packet-oriented network, for instance ATM-network or IP-network.
  • a packet-oriented network for instance ATM-network or IP-network.

Landscapes

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

Abstract

The invention relates to a device and a method which makes possible to automatically find out how much resources with regard to i.a. bandwidth that need to be allocated at a given flow of traffic in a telecommunication network and data communication network. The invention attends to this by building up a base of knowledge which makes possible optimization of booked resources in a packet-oriented communication network. Said base of knowledge is built up in two steps and is used after each step to automatically allocate necessary resources. A first measuring to adapt the maximal transmission rate of the terminal to the traffic intensity which the terminal generates includes measuring of least possible momentary consumption of resources for maximally allowed delay in the terminal. A second measuring to adapt allocated resources in the network to what the terminal generates for the whole duration of a given situation includes measuring of the traffic characteristics of the terminal and modification of allocated resources in the network on a statistical description of generated traffic.

Description

TITLE OF THE INVENTION: PACKET-ORIENTED NETWORKS
TECHNICAL FIELD
The present invention relates to a device and a method at a telecommunication network or data communication network which appoints how much network resources, for instance bandwidth, that need to be allocated for a given traffic situation.
PRIOR ART
Packet-oriented networks, such as ATM-networks or IP- networks, can handle traffic flows of varying need of resources over the time. In order to guarantee quality, combined with efficiency, to the terminal, resources in form of buffer storage and bandwidth need to be allocated in both terminal and network.
The question which the present invention intends to answer is how a terminal automatically can appoint how much resources that need to be allocated for a given situation. One type of situation is a type of recurring events which have similar need of resources from time to time, for instance a certain application, or communication with a certain type of terminal. Because a number of factors have influence on the need of resources, it is difficult to without measurement estimate this only by knowledge of included components such as operative system, application, communication card, communication protocol, type of terminal, and selected configuration of these. In modern packet-oriented networks, for instance ATM- networks or IP-networks, it is, as has been mentiond above, in principle possible to allocate just any amount of resources (bandwidth and buffer storage) to a connection. The task to appoint how much resources that will be allocated is for the terminal. The problem with the terminals and/or applications of today, however, is that they are lacking ability to appoint their need of resources .
The aim with the present invention consequently is to solve this problem and produce a terminal which can appoint said need of resources.
SUMMARY OF THE INVENTION
This aim is achieved by a device and a method which is presented in the characterizing part of the patent claim 1 respective the patent claim 5.
The measuring methods which are included have been verifed by laboratory tests for an extensive spectrum of IP-applications over ATM-networks.
The measuring methods according to the invention have turned out to function very satisfactorily with regard to the appointing of need of resources in a subscriber terminal .
Further characteristics of the present invention are given in the subclaims .
DETAILED DESCRIPTION OF AN EMBODIMENT OF THE INVENTION In the following first a general description of how the terminal and the measuring method according to the present invention functions is given. After that a terminal and a measuring method will be described which is especially intended for ATM-networks.
The terminal according to the invention is intended to build up own knowledge which makes possible successive optimization of booked resources in a packet-oriented network. This knowledge is built up in two steps and is after each step used to automatically allocate the resources :
First the terminal attends to an initial measurement to adapt the maximal transmission rate of the terminal to the traffic intensity which the terminal generates for a given situation. The measuring is performed in following steps :
1. Measure least possible "momentary" consumption of resources for maximally allowed delay in the terminal.
2. Set measured transmission rate in traffic shaper.
3. Modify allocated resources in the network to the transmission rate to which the traffic shaper is set.
After that the terminal attends to a continued measuring to adapt allocated resources in the network to what the terminal generates for the whole duration of a given situation. The measuring is performed in following steps:
1. Measure the traffic characteristics of the terminal for "utilization of longer duration".
2. Modify allocated resources in the network based on a statistical description of generated traffic. 3. Store obtained values both "momentary" and "utilization of longer duration" until next time the situation is repeated for setting of traffic shaper and allocation of network resources.
In the following a measuring method is described which is specific for ATM-networks.
The initial measuring to adapt the PCR (Peak Cell Rate) of the terminal to the traffic intensity which the terminal generates for a given situation is performed in the following way: 1. Measure least possible PCR for maximally allowed delay in the buffer to the ATM-shaper of the terminal. The delay can, for instance, be measured by application of the standardized GCRA-algorithm.
2. Set measured PCR in traffic-shaper . 3. Modify allocated resources in the network to the PCR to which the traffic shaper is set. The need of resources can for instance be communicated by means of standardized protocols for signalling in ATM-networks.
Continued measuring to adapt allocated resources in the network to what the terminal generates for the whole duration of a given situation:
1. Measure the traffic characteristics of the terminal in terms of SCR (Sustainable Cell Rate) och MBS (Maximum Burst Size) .
2. Modify allocated resources in the network in terms of SCR and MBS.
3. Store obtained values of PCR, SCR/MBS until next time the same situation is repeated.
Even if a situation in the starting position may seem to be similar to a previously analysed case, it is necessary to continuously supervise the buffer state of the traffic shaper, making it possible to adjust the allocation of resources and by that avoid impaired service quality.
The invention is preferably used in subscriber terminals in connection with preparations for establishing of the connection over a packet-oriented network, for instance ATM-network or IP-network.
The above mentioned is only to be regarded a an advantageous embodiment of the invention, and the extent of protection of the invention is only defined by what is indicated in the following patent claims.

Claims

PATENT CLAIMS
1. Device at a telecommunication network or data communication network which appoints how much network resources, for instance bandwidth, that need to be allocated for a given traffic situation, c h a r a c t e r i z e d in that it itself measures, stores and signals its need of network resources in said telecommunication network or data communication network.
2. Device according to patent claim 1, c h a r a c t e r i z e d in that it includes a database for storing of information which makes possible a successive optimization of booked network resources in said network.
3. Device according to patent claim 2, c h a r a c t e r i z e d in that it attends to an initial measuring to adapt the maximum transmission rate of the terminal to the traffic intensity which said device generates for a given situation, and that it attends to a continued measuring to adapt allocated resources in said network to resources which said device generates for the whole duration of a given situation.
4. Device according to patent claim 3, c h a r a c t e r i z e d in that it includes a traffic shaper which sets measured transmission rate, and that said networks ar packet-oriented networks, such as ATM-networks or IP-networks.
5. Method at a telecommunication network or data communication network, including a device which appoints how much network resources, for instance bandwidth, that need to be allocated for a given traffic situation, c h a r a c t e r i z e d in that the need of network resources of said device is measured, stored and signalled in said telecommunication network or data communication network.
6. Method according to patent claim 5, c h a r a c t e r i z e d in that an initial measuring to adapt the maximal transmission rate of said device to the traffic intensity which said device generates for a given situation is effected in the following steps: a) measure least possible momentary consumption of resources for maximally allowed delay in the device; b) set measured transmission rate in a traffic shaper; c) modify allocated resources in the network to the transmission rate to which the traffic shaper is set.
7. Method according to patent claim 6, c h a r a c t e r i z e d in that a continued measuring to adapt allocated resources in the network to resources which said device generates for the whole duration of a given situation is effected in the following steps: a) measure the traffic characteristics of said device for the utilization of a longer space of time; b) modify allocated resources in said network based on a statistical description of generated traffic; c) store obtained values of momentary consumption of resources and consumption of resources for the utilization during a longer space of time, until next time the situation is repeated for setting of said traffic shaper and allocation of network resources.
8. Method according to patent claim 7, c h a r a c t e r i z e d in that said networks are packet- oriented networks such as ATM-networks and IP-networks, and that said resources relate to bandwidth and buffer storage.
9. Method according to patent claim 8, c h a r a c t e r i z e d in that said device is a subscriber terminal intended for ATM-network, at which said initial measurings relates to the PCR of said terminal to the traffic intensity which the terminal generates for a given situation, and that in said continued measuring is appointed the traffic characteristics of said terminal in terms of SCR, MBS and PCR.
PCT/SE1998/000392 1997-03-07 1998-03-04 Packet-oriented networks WO1998039881A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP98908411A EP0963641A1 (en) 1997-03-07 1998-03-04 Packet-oriented networks
EEP199900395A EE03717B1 (en) 1997-03-07 1998-03-04 Packet-oriented networks
NO19994225A NO325115B1 (en) 1997-03-07 1999-09-01 Device and method of a telecommunications network

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9700805A SE519482C2 (en) 1997-03-07 1997-03-07 Method and apparatus of a telecommunications system for determining the amount of necessary resources in a given traffic situation
SE9700805-6 1997-03-07

Publications (1)

Publication Number Publication Date
WO1998039881A1 true WO1998039881A1 (en) 1998-09-11

Family

ID=20406046

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1998/000392 WO1998039881A1 (en) 1997-03-07 1998-03-04 Packet-oriented networks

Country Status (5)

Country Link
EP (1) EP0963641A1 (en)
EE (1) EE03717B1 (en)
NO (1) NO325115B1 (en)
SE (1) SE519482C2 (en)
WO (1) WO1998039881A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002037724A1 (en) * 2000-10-31 2002-05-10 Dynarc Ab Method of adjusting a bandwidth capacity of a dynamic channel
EP1284551A1 (en) * 2001-08-08 2003-02-19 Siemens Aktiengesellschaft Assignment of a service quality for information transfer within a communication network
WO2003065228A1 (en) * 2002-02-01 2003-08-07 Nokia Corporation Method and system for service rate allocation, traffic learning process, and qos provisioning measurement of traffic flows
WO2004040848A1 (en) * 2002-10-30 2004-05-13 Operax Ab Method and arrangement to reserve resources in an ip network

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0719012A2 (en) * 1994-12-19 1996-06-26 Alcatel Data Networks Traffic management and congestion control for packet-based network
EP0748141A2 (en) * 1995-06-05 1996-12-11 AT&T IPM Corp. Congestion control system and method for packet switched networks providing max-min fairness

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0719012A2 (en) * 1994-12-19 1996-06-26 Alcatel Data Networks Traffic management and congestion control for packet-based network
EP0748141A2 (en) * 1995-06-05 1996-12-11 AT&T IPM Corp. Congestion control system and method for packet switched networks providing max-min fairness

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002037724A1 (en) * 2000-10-31 2002-05-10 Dynarc Ab Method of adjusting a bandwidth capacity of a dynamic channel
EP1284551A1 (en) * 2001-08-08 2003-02-19 Siemens Aktiengesellschaft Assignment of a service quality for information transfer within a communication network
WO2003015350A1 (en) * 2001-08-08 2003-02-20 Siemens Aktiengesellschaft Characterisation of service quality for an information transmission in a communication network
WO2003065228A1 (en) * 2002-02-01 2003-08-07 Nokia Corporation Method and system for service rate allocation, traffic learning process, and qos provisioning measurement of traffic flows
WO2004040848A1 (en) * 2002-10-30 2004-05-13 Operax Ab Method and arrangement to reserve resources in an ip network
AU2003272176B2 (en) * 2002-10-30 2008-08-14 Operax Ab Method and arrangement to reserve resources in an IP network

Also Published As

Publication number Publication date
NO325115B1 (en) 2008-02-04
SE9700805L (en) 1998-09-08
EE03717B1 (en) 2002-04-15
SE9700805D0 (en) 1997-03-07
NO994225D0 (en) 1999-09-01
EP0963641A1 (en) 1999-12-15
SE519482C2 (en) 2003-03-04
NO994225L (en) 1999-09-07
EE9900395A (en) 2000-04-17

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