CN1335007A - Method and apparatus for improving end-user quality of service in packet switched networks - Google Patents
Method and apparatus for improving end-user quality of service in packet switched networks Download PDFInfo
- Publication number
- CN1335007A CN1335007A CN99815990A CN99815990A CN1335007A CN 1335007 A CN1335007 A CN 1335007A CN 99815990 A CN99815990 A CN 99815990A CN 99815990 A CN99815990 A CN 99815990A CN 1335007 A CN1335007 A CN 1335007A
- Authority
- CN
- China
- Prior art keywords
- service
- mentioned
- quality
- network
- user quality
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/2227—Quality of service monitoring
-
- 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
- H04L41/50—Network service management, e.g. ensuring proper service fulfilment according to agreements
- H04L41/5003—Managing SLA; Interaction between SLA and QoS
- H04L41/5019—Ensuring fulfilment of SLA
- H04L41/5025—Ensuring fulfilment of SLA by proactively reacting to service quality change, e.g. by reconfiguration after service quality degradation or upgrade
-
- 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
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/091—Measuring contribution of individual network components to actual service level
-
- 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
- H04L41/0803—Configuration setting
- H04L41/0823—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability
-
- 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
- H04L43/06—Generation of reports
-
- 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
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
- H04L43/0847—Transmission error
-
- 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
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0852—Delays
-
- 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
- H04L43/16—Threshold monitoring
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Environmental & Geological Engineering (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
A method and system for improving the end-user quality of service in a packet switched network. Reports are sent from various nodes in the network informing a network supervisor of the end-user quality of service at the node, which represents an estimate of the quality from a human end-user's perspective. The quality supervisor analyzes the reports and sends commands to the node which sent the report and/or to other nodes in order to improve the end-user quality of service at the node and in the packet switched network as a whole. The nodes comprise sending and receiving terminals, routers and gateways. The reports include measurements of link parameters, device parameters and end-user quality of service.
Description
Invention field
The present invention relates to packet-switched telecommunication network.More specifically, the quality of service that the present invention relates to discover based on human terminal use improves the performance of whole group switching network.
Background
Along with the development of PSTN (PSTN), during the social expectation phone connects near 100% reliability.This is contemplated to be because PSTN is a circuit-switched network, and wherein each user has a guaranteed bandwidth.But, it has been recognized that to voiceband telephone uses circuit-switched communications meeting waste bandwidth, thereby cause increasing cost.A reduction provides the method for the cost of telecommunications to be to use packet-switch technology.
An example of packet-based telephone system has been described in ITU-T suggestion H.323 " Visual Telephone Systems and Equipmentfor Local Area Network Which Provide Non-Guaranteed Quality ofService (video-phone system and equipment are used for providing the local area network (LAN) of unwarranted quality of service) ", is incorporated herein by reference at this.This advises one of them standard of the speech transmissions of selected conduct on IP network.A bandwidth has been described in this suggestion can not guaranteed system.In bandwidth can not guaranteed system, speech packet lose and/or unacceptable transmission delay can reduce the speech quality that human terminal use perceives.Therefore, system operator can't guarantee the quality of the Speech Communication that the human terminal use of packet-switched telecommunication system perceives.
Described among people's such as Dollin european patent application 0 786 883 A1 and used link parameter to determine a kind of " quality of service " measuring technique of a quality that communicates to connect.People such as Dollin have described and have carried out the method that " quality of service " measured between two end points in atm network, and wherein will supervise pops one's head in is connected on the communication link between end points and the network.People such as Dollin use phrase to measure " quality of service " as measuring one group of link parameter synonym of (comprise and postponing and bandwidth).
The people's such as Minde that on May 22nd, 1997 submitted to U.S. Patent application No.08/861,563 " among the Speech Quality Measurement in Mobile TelecommunicationNetworks Based on Radio Link Parameters speech quality measurement of radio link parameter (in the mobile telecom network based on) ＂; described the solution of using link parameter to measure the speech business quality of seeing from human terminal use's viewpoint in the wireless cellular network field, this scheme is incorporated herein by reference at this.People such as Minde have described and have used radio link parameter to assess the subjective speech quality that is called end-user quality of service here in a statistical analysis.End-user quality of service is the objective quality measurement that the subjective quality perceived with human terminal use has fine correlation.From human terminal use's viewpoint, such objective measurement is much more accurate than the what is called in people's such as Dollin article " quality of service ".Although link parameter, promptly generally be called " quality of service ", really influence end-user quality of service, but the difference between end-user quality of service and traditional " quality of service " is still obviously got up by such fact, promptly for same group of link parameter, according to such as encoder/decoder, resemble the such factor of terminal parameter about using of input block size, end-user quality of service can be different, and traditional " quality of service " is identical.In addition, one in the link parameter changes the end-user quality of service that can influence a voice connection, but can not influence the end-user quality of service that a video connects, yet measure for traditional " quality of service ", the change meeting of a link parameter all changes the traditional business quality that video is connected with voice.Correspondingly, the measurement of link parameter causes one may be also may not be the objective measurement of the voice quality of the accurate designator of end-user quality of service.
Although people such as Minde have described the measurement of the end-user quality of service in cellular network, in packet switching network, do not use end-user quality of service up to now yet.In addition, people such as Minde does not explain the decline source of using end-user quality of service to come the end-user quality of service in the identification packet switching network.People such as Minde do not explain based on the dynamic adjustment in the packet switching network of end-user quality of service yet.
Correspondingly, wish to carry out continuous link parameter measurement and determine end-user quality of service in the packet switching network.In addition, wish to communicate to connect and as a whole network all carries out continuous end-user quality of service and measures for independent in the packet switching network.Wish to be identified at the source that the end-user quality of service in the packet switching network descends.Also wish to use end-user quality of service to measure in packet switching network, dynamically to adjust, to improve the end-user quality of service of overall network.
Summary of the invention
An exemplary embodiment of the present invention provides a kind of equipment and method, is used for by coming dynamic adjustment business and/or traffic carrying capacity in response to the link parameter of continuous measurement, improves to communicate to connect and the end-user quality of service of network as a whole.For this reason, a kind of method that is used for measuring, supervising and control the end-user quality of service that runs through network has been described.
According to an exemplary embodiment of the present invention, the end points in network and other node continuous measurement are about the link parameter and the device parameter of end-user quality of service.End points carries out end-user quality of service and measures.The report that end points will contain the end-user quality of service measurement periodically sends to quality of service hypervisor (SQS).The end-user quality of service that depends on end points is measured, and end points can also include measured link and device parameter in giving the report of SQS.Other node in the network sends to SQS with the report of relevant measured link parameter.SQS analyzes the concurrent order of losing one's life of these reports continuously and gives node and/or the end points end-user quality of service with dynamic raising node or end points and network as a whole.
First purpose of the present invention provides for the quality of service in the packet switching network, i.e. more accurate the and reliable measurement of end-user quality of service.
Second purpose of the present invention provides for integral body and the more accurate assessment based on the network performance of end-user quality of service.
Another object of the present invention is a function of measuring as end-user quality of service, safeguards and/or improves overall performance in the packet switching network.
The accompanying drawing summary
To make above-mentioned purpose of the present invention and feature more obvious below with reference to accompanying drawing to the description of preferred embodiment, wherein:
Fig. 1 represents a packet-based network according to exemplary embodiment of the present invention;
Fig. 2 represents major function of the present invention;
Fig. 3 represents the measurement to end-user quality of service of the measurement of link and device parameter and node and end points;
Fig. 4 represents to measure and report a kind of method of the end-user quality of service of end points;
Fig. 5 represents reception and the processing to report by SQS;
Fig. 6 represents a kind of method by SQS sign quality decrease reason;
Fig. 7 represents by the communication of a pair of gateway between two packet networks;
Fig. 8 represents that when quality descends be when being caused by another network, improves a demonstration program of end-user quality of service; And
Fig. 9 represents to adjust a kind of method of end points business.
Describe in detail
The present invention generally comprises the ability of overall performance of the packet switching network of control example packet switching network 100 as shown in Figure 1.The system of Fig. 1 comprises, except that other parts, and terminal 101 and 102, packet-switched core network 103,104 and relevant storage mediums 105 of quality of service supervisory process (SQS).Terminal 101 and terminal 102 be also referred to as end points at this, following will the description, and they are by packet-switched core network 103 mutual communication.Terminal 101 and 102 can comprise phone, have the terminal of microphone, video conference terminal maybe can receive and duplicate any communication equipment of the signal that the mankind can discover.The router that SQS 104 can be used as high cost link (for example, as built-in territory topological database there being Open Shortest Path First (OSPF) router) realize, perhaps at one H.323 in the system, SQS 104 can be used as one and provides to keep for the pass of regional access control and realize.Alternately, SQS 104 can be used as an autonomous device and realizes.SQS 104 communicates by letter with other network equipment by packet-switched core network 103.This network can comprise that the node in wired and wireless connections and the packet switching network 100 can comprise router, gateway and for the special joint (for example base station) of wireless connections.Terminal 101, terminal 102 can measure link parameter, measuring equipment parameters, carry out the end-user quality of service measure and transmit reports to SQS 104 about what measured link parameter, measured device parameter and end-user quality of service were measured.
Fig. 2 represents in order to realize three major functions of the present invention.Correspondingly, in step 205, according to first major function of the present invention, by each node in the packet switching network and end points continuous measurement link and device parameter.In step 210, use the link parameter of measurement and measured device parameter at end points, and measure at the end-user quality of service that SQS uses measured link parameter, measured device parameter and each node from network and end points to send, come measuring terminals customer service quality.According to second major function of the present invention, use measured end-user quality of service, end points and/or SQS can marking terminal customer service reasons for quality decrease.In step 215, according to the 3rd major function of the present invention, SQS dynamically improves the end-user quality of service of connection separately and overall network.
Fig. 3 represents according to first major function of the present invention, the collection of in packet switching network, measuring by router three 03-309 and end points 301 and the 302 pairs of link parameters and device parameter, and by the measurement of 302 pairs of end-user quality of service of end points.According to exemplary embodiment shown in Figure 3, end points 301 sends an information signal to end points 302 by the packet core network 310 as core network 103 parts.Although among Fig. 3 with end points 301 as transmitter and end points 302 as receiver, those skilled in the art should know that these two end points can be by packet core network 310 signal that sends and receives information simultaneously.According to offered load, information signal can be sent to router three 03 from end points 301, is sent to router three 05 from router three 03, and is sent to end points 302 from router three 05.Alternately, information signal can be sent to router three 03 from end points 301, is sent to router three 09 from router three 03, is sent to router three 05 from router three 09, and is sent to end points 302 from router three 05.As described below, can control Path selection according to traffic carrying capacity adjustment order by SQS for information signal.
When end points 301 was sending information signal, end points 301 was just at measuring equipment parameter DP
T1DP
Tn, and link parameter LP
T1LP
TnAccording to an exemplary embodiment of the present invention, device parameter DP
T1DP
TnComprise processing and packetization delay, codec mode, user data rate, interleave depth or weave type.Link parameter LP
T1LP
TnComprise link delay or access delay.When from end points 301 receiving information signals, end points 302 is just at measure link parameter L P
R1LP
Rn, device parameter DP
R1DP
RM, and carry out end-user quality of service based on measured link and device parameter and measure EuQos.According to an exemplary embodiment, link parameter LP
R1LP
RnComprise estimative bit error rate (BER) and total delay.Device parameter DP
R1DP
RMComprise buffer load, buffer state, weave type, decoding schema, error concealment unit and host process unit.In the communication process between end points 301 and 302, router three 03-309 measure link parameter L P
N1LP
NRWith device parameter DP
N1DP
NSAccording to an exemplary embodiment of the present invention, link parameter LP
N1LP
NRComprise estimative BER, link delay, access delay, unit loss, unit destruction, burst diffusion, maximum-minimum and average bandwidth.Device parameter DP
N1DP
NSComprise cell delay, cell delay variation, unit cleaning, buffer load and buffer state.In addition, notice that each node or end points do not need to measure the device parameter of the link parameter equal number of measuring with node or end points.Provided among Fig. 4 by end points 301 and 302 links that carry out and device parameter measurement and end-user quality of service measurement.
Fig. 4 represents according to first major function of the present invention, by producing and send end-user quality of service report, device parameter report and link parameter report such as end points 302 such end points.At a session, in step 405, an end points is collected and measuring equipment parameter and link parameter.In step 410, end points is based on a statistical model measuring terminals customer service quality, and this is to carry out in the mode that is similar to people's descriptions such as Minde, only uses link parameter and device parameter about the end-user quality of service of packet switching network.In step 415, the result of end-user quality of service measurement is shown to the user of terminal.But, step 415 is optionally and can be omitted.The end-user quality of service of end points is reported to SQS by the time interval with rule.Correspondingly, determined whether to pass through a time interval and whether arrived the time of a report of transmission in step 420.This report always comprises from the end-user quality of service of step 410 to be measured.But, be unacceptable if end points is determined end-user quality of service, then end points sends a Hot Report, and this report comprises that end-user quality of service is measured, measured link parameter and measured device parameter.If according to determination step 420 " " path has passed through the time interval and to the time that sends a report, then sends one according to step 430 and report to SQS 104 and end points 301 YES.Below will describe in Fig. 5, SQS 104 operation reports are measured the end-user quality of service of specific connection and the end-user quality of service of overall network.The report that sends to another end points can contain one adjusts professional order, will describe in Fig. 9 below.
As mentioned above, end points of the present invention comprises a Hot Report feature, if wherein measured end-user quality of service is reduced under the acceptable end-user quality of service threshold value before sending a regular reporting, then end points will send a Hot Report.Step 420 and 425 expression Hot Report features.If according to " NO " path of determination step 420, determine whether the time interval also not in the past, then is lower than acceptable end-user quality of service threshold value according to the definite measured end-user quality of service of step 425.If according to " NO " path of determination step 425, measured end-user quality of service is greater than or equal to acceptable end-user quality of service threshold value, then process turns back to step 405 so that end points contribution link parameter and device parameter.If " YES " path according to determination step 425, measured end-user quality of service is lower than acceptable end-user quality of service threshold value, then according to step 430, a report that contains measured link parameter, measured device parameter and measured end-user quality of service is sent to SQS 104 and sends to other end points alternatively.It is in order to notify the user of other node always that end-user quality of service is sent to other end points: how the partner treats communication, and adjusts this business if desired and if possible, as surface depicted in Figure 9.Similarly process is applied to other node, but about other parameter, for example for router and the load of service in base station amount.
SQS 104 has two main tasks corresponding to second of the present invention and the 3rd major function.First main task of SQS comprises reception link parameter, device parameter and end-user quality of service report, based on the problem of being determined by end-user quality of service measurement, link parameter and the device parameter reported about end-user quality of service, and under the help of a traffic model, identify the source of any such problem.Provided first main task of SQS 104 among following Fig. 5.
Second main task of SQS 104 comprises the supervision to packet switching network 100, and it is corresponding to the 3rd major function of the present invention, promptly to the dynamic adjustment of network.The supervision of packet switching network 100 and then generally comprise the dynamic adjustment of traffic carrying capacity and professional dynamic adjustment.The dynamic adjustment of traffic carrying capacity, re-route communication (being packet) around for example being included in the get clogged router and/or the gateway that gets clogged, real-time and/or the non-real-time service amount of restriction, if and used wireless connections, then under the help of a wireless network access controller, combined optimization is carried out in these wireless connections.The dynamic adjustment that only is sent to the business of the end points in the network comprises that order sends end points and adjusts one or more device transmission parameters (for example transmission bit rate, codec type etc.).Described this monitoring function among Fig. 5-10, and below will describe in detail.
Fig. 5 represents a kind of technology, SQS 104 utilizes this technology to receive and handles from end-user quality of service report, device parameter report and link parameter report such as the various network device of end points 101 and 102, and second and the 3rd major function according to the present invention are dynamically adjusted network.As shown in Figure 5, according to step 505, SQS 104 determines at first whether it has received a latest report.According to an exemplary embodiment,, send this report from an end points according to method as shown in Figure 4.If according to " NO " path of determination step 505, any one in definite various network device all do not receive a latest report, and then SQS 104 continues the supervision latest reports.But, if according to " YES " path of determination step 505, determined that a latest report is received, then shown in step 510, SQS 104 analyzes received report with identification sources, promptly sends the network equipment of this report.In step 515, SQS 104 uses the report that is received to come measuring terminals customer service quality, and employed is the statistical model with same form of describing with people such as Minde, has only used the parameter specific to packet switching network.
Technology shown in Fig. 5 concentrates on the 3rd major function according to the present invention and dynamically adjusts transmission, is necessary if determined to do like this for improving end-user quality of service.Correspondingly, at determination step 520, SQS 104 determines whether end-user quality of service measured and report is lower than a predetermined end-user quality of service threshold value.If " YES " path according to determination step 520, determined that terminal traffic customer service quality is lower than the " threshold value of predetermined end-user quality of service; then shown in step 525, SQS 104 produces and transmits a professional order of adjustment and gives the network equipment that is sending signal to change the one or more device parameters that transmit about the signal from the source.Be described in more detail in end points to adjusting the realization of professional order below with reference to Fig. 9.
If " NO " path according to determination step 520, SQS 104 determines that the end-user quality of service measurement of being reported is greater than or equal to predetermined end-user quality of service threshold value, or after SQS 104 has sent a professional order of adjustment, then according to step 530, the whole end-user quality of service for network is measured in the end-user quality of service measurement in the current report of SQS 104 uses and a plurality of end-user quality of service measurement from the report of other network equipment that had before received.Should be appreciated that for the whole end-user quality of service of network and represented a kind of method that network can be optimised.The network operator can select to optimize network according to different factors, for example for the client's of higher paying optimization.Correspondingly, for network is optimized in the selection by the network operator, SQS 104 to obtain the ensemble average network servicequality measure, for the average traffic mass measurement of a specific region in the network, with a mean square error of average overall network quality of service measurement, for a specific average quality that is connected group or any amount of other replacer.
After having measured the whole end-user quality of service of network, SQS 104 determines at determination step 535 whether the whole end-user quality of service of network is lower than a predetermined acceptable network quality threshold value.If according in the determination step 535 " " path, SQS104 determine that the overall network quality of service is greater than or equal to predetermined acceptable network quality threshold value to NO, and then in step 560, these measurements are used to adjust the state of traffic model.Store in the storage medium 105 with the state of network and from the relevant parameter in the report.Control turns back to step 505 then, and SQS 104 waits for a latest report in this step.
That the network model of top indication is based on network topology that oneself knows and the parameter of reporting as the quilt from the end points of packet switching network 100 and node of input variable arranged.The state of the model that the topological sum of network is brought in constant renewal in is stored in the storage medium 105 of SQS 104, and is used to supervise the source of the traffic carrying capacity and the problem of detection in packet switching network 100.According to a complete exemplary embodiment of the present invention, if SQS receives the node in one group of link parameter report of the unacceptable delay of having indicated in transmitted in packets and the identical general area that these reports come comfortable network, the SQS source of the decline of marked network voice quality then.Should be appreciated that SQS 104 can only monitor it to its packet switching network of supervising, as following together with Fig. 7 and 8 described.
But, if according in the determination step 535 " " path, SQS 104 determine that the whole end-user quality of service of networks is lower than predetermined acceptable network quality threshold value to YES, and then according to step 540, SQS 104 is with this informing network network operator.After the network operator of whole end-user quality of service notified to(for) network is lower than predetermined acceptable network quality threshold value, shown in step 545, SQS 104 carries out in several SQS functions, promptly identifies and correct the reason that end-user quality of service descends.After having carried out a SQS function, determine whether to carry out more SQS function according to step 550.If, determined to carry out more SQS function, then in step 545, carry out the SQS function according to " YES " path in the determination step 550.If according to " NO " path in the determination step 550, determined not have more SQS function to be performed, then in step 555, upgrade the state of network model.After the state of network model was updated, value relevant with the network model state in step 560 was stored.
Fig. 6 represents first demonstration SQS function, and wherein according to second major function of the present invention, the whole end-user quality of service decrease reason of network is identified.As mentioned above, SQS uses from the data in the report, and promptly end-user quality of service, link parameter and device parameter upgrade network model.In step 605, SQS attempts to utilize the network model that is updated to identify the reason that the overall network end-user quality of service descends.In step 610, determine whether successfully to identify reasons for quality decrease.If according in the determination step 610 " " path, reasons for quality decrease are not successfully identified NO, and then control turns back to the step 550 of Fig. 5.But, if " YES " path according to determination step 610, the quality decrease reason is successfully identified, then according to the 3rd major function of the present invention, shown in step 615, SQS sends the order of an adjustment traffic carrying capacity and gives node or send a professional order of adjustment to end points, is the decline that this node or end points have caused the overall network end-user quality of service.
Can realize the traffic carrying capacity adjustment according to the whole bag of tricks, the low priority of minimizing load command wherein be arranged and adjust the traffic carrying capacity order.If in network, realize a priority difference agreement, then reduce the low priority load command and can be issued and limit non real-time or low-priority packet traffic carrying capacity, so just can obtain higher network capacity for real time business.Adjust the traffic carrying capacity order and be sent to router, so that they adjust service path.At last, in step 620, the source that the notified quality of network operator descends and having implemented is used for the method that correction quality descends.After the network operator was notified, process turned back to the step 550 of Fig. 5 to determine whether carrying out more SQS function.
Fig. 8 represents a demonstration SQS function according to second and the 3rd major function of the present invention, and wherein SQS corrects the decline of the end-user quality of service that is caused by another network, and wherein other network is connected to SQS by a gateway.But, be stranded 8, shown that in Fig. 7 the use gateway connects two networks in order to fully understand.Fig. 7 represents by the connection of a pair of gateway between two packet networks.Communication link 790 comprises a PSTN (PSTN), a global system for mobile communications network (GSM) or an Integrated Service Digital Network communication link.When terminal 710 and 760 mutual communication, gateway 730 and 770 is carried out two major functions.First function is with the form of this transition of communications one-tenth with communication link 790 compatibilities.Second function is the quality of the quality of the supervision information signal that sends to other network and the information signal that receives from other network.
Fig. 8 is discussed now, and in step 810, SQS 705 analyzes the report that receives from gateway 720 or terminal 710.In step 815, SQS 705 determines whether end-user quality of service decline originates from outside the network 715.In order to make SQS 705 make above-mentioned judgement, network model is analyzed to determine the source of quality decline.If according to determination step 815 " " path, SQS 705 determine successfully that the reason that network quality descends originates from outside the network 715 to NO, and then process turns back to step 550 to determine whether carrying out other SQS function according to network model.But, if according to " YES " path of determination step 815, determined that successfully the quality decrease reason appears at outside the network 715, then SQS 705 utilizes order notice SQS 755 end-user quality of service in the step 820 to descend.In step 825, occur reasons for quality decrease outside the notified network 715 of network operator and an order has been sent to network 765.On the contrary, if SQS 755 determines that the quality decrease reason originates from packet network 715, then SQS 755 will notify SQS 705 to descend about communication quality, and SQS 705 can adopt right measures like this.
Fig. 9 represents according to the 3rd major function of the present invention, and the realization of the professional order of the adjustment of describing in the step 525 of Fig. 5, this order are sent or send to from another end points the source of transmission from SQS 104.On the function, adjust professional order indication network equipment and send information signal adjusting the transmission of its information signal, thereby be implemented in the reception network equipment, promptly be responsible for current report is sent to the raising of end-user quality of service at the network equipment place of SQS 104.This order both can be restrictive, for example entered network by request with lower bit rates, also can permit, for example allowed higher bit rate to enter unloaded network.Therefore, the network equipment that sends information signal can change coding mode, promptly is used for encoding scheme to information signal coding, perhaps alternately, reduces transmitted bit speed.Correspondingly, end points determines whether that an order is sent from SQS in step 905.If according to " NO " path of determination step 905, SQS does not also send an order, then according to step 910, end points determines whether that it has received information from another end points.Other terminal use may require the change of data rate and/or codec and this operation to realize the restriction that the final order that receives from SQS applies.If according to " NO " path in the determination step 910, other end points does not receive the information from another end points, then process turns back to step 905.But,, perhaps, received an order, then be adjusted according to step 915 business from SQS according to " YES " path in the decision block 905 if, received information from other end points according to " YES " path in the decision block 910.
Although it is online to improve that the present invention is described to use speech quality measurement to send order, it is the real-time voice quality, those of skill in the art will be appreciated that the network operator can use these data or analysis to revise and adjust network, for example add new unit, change hardware, change foundation structure etc., this has represented the offline optimization of network.
In an exemplary embodiment, the quality of service supervisory process realizes as the software kit in the server.In addition, in a pure exemplary embodiment, the quality of service supervisory process can be positioned at and carry out the identical position of billing function.Be described although the invention relates to the measurement of information signal and voice signal and correct, those of skill in the art will be appreciated that the present invention also can be implemented the quality of measuring and correcting any kind.For example, the present invention can measure the quality of viewed graphic file, video clipping or an internet web page that sends by packet switching network.
Although the present invention describes with reference to two communications between endpoints, the present invention can be applied to multi-point equally, and wherein plural end points is just communicated by letter in a conference apparatus.
Although the present invention is described about the previous exemplary embodiment, be apparent, however, to one skilled in the art that the present invention also can otherwise realize.Therefore, under the situation of the described the spirit or scope of the present invention of claim, those of skill in the art can make many variations and combination to the technology of top teaching below not departing from.
Claims (27)
1. a kind of method that is used for improving the end-user quality of service in the packet switching network comprises step:
In a plurality of network nodes each is measured a parameter;
Use above-mentioned measured parameter measurement end-user quality of service;
As a function of measured end-user quality of service, dynamically adjust network to improve end-user quality of service.
2. the process of claim 1 wherein that one in above-mentioned a plurality of network node is first end points, and in wherein above-mentioned a plurality of nodes another be second end points, wherein above-mentioned first and second end points are communicated by letter in a connection by above-mentioned packet switching network.
3. the method for claim 2, wherein above-mentioned first end points are measured above-mentioned for the end-user quality of service that connects.
4. the method for claim 3, wherein above-mentioned first end points sends and reports to a quality of service supervisory process, this report comprises measured link parameter and measured device parameter and measured end-user quality of service, and wherein above-mentioned quality of service supervisory process is dynamically adjusted packet switching network to improve above-mentioned end-user quality of service.
5. the method for claim 3, if wherein above-mentioned measured end-user quality of service is reduced under the predetermined end-user quality of service threshold value, then above-mentioned quality of service supervisory process sends one and adjusts professional order to above-mentioned second end points.
6. the method for claim 3, if wherein above-mentioned measured end-user quality of service is reduced under the predetermined end-user quality of service threshold value, the then above-mentioned mat woven of fine bamboo strips one end points sends one and adjusts professional order to above-mentioned second end points.
7. the method for claim 1 also comprises:
Receive report in the quality of service supervisory process, this report comprises that measured link parameter, measured device parameter and end-user quality of service measure;
In above-mentioned quality of service supervisory process, use above-mentioned report to measure the overall network end-user quality of service.
8. the method for claim 7, if wherein the overall network end-user quality of service is lower than a predetermined overall network end-user quality of service threshold value, then above-mentioned quality of service supervisory process is dynamically adjusted this network.
9. the method for claim 8, wherein above-mentioned dynamic adjustment are one and are selected from by reducing the low priority load command and adjusting the order of the command group that the traffic carrying capacity order forms.
10. the method for claim 1 also comprises:
Upgrade network model with above-mentioned measured parameter and above-mentioned end-user quality of service measurement, wherein above-mentioned measured parameter comprises device parameter and link parameter.
11. the method for claim 10 also comprises:
The reason of using above-mentioned network model to come marking terminal customer service quality to reduce.
12. the method for claim 10, in wherein a plurality of network nodes one is a gateway between above-mentioned packet switching network and another packet switching network; And
The above-mentioned reason that wherein above-mentioned end-user quality of service reduces is this another packet switching network.
13. the method for claim 13 also comprises step:
Send one to the quality of service supervisory process that is arranged in above-mentioned second packet switching network and adjust the traffic carrying capacity order.
14. being used in a packet switching network improving the equipment of end-user quality of service comprises:
First end points;
Second end points by this packet switching network and this first endpoint communication;
The report that use sends from network node comes the quality of service supervisory process of measuring terminals customer service quality.
15. the equipment of claim 14, wherein network node comprises above-mentioned first and above-mentioned second end points.
16. the equipment of claim 15, wherein above-mentioned report comprise that link parameter is measured, device parameter is measured and the end-user quality of service of end points is measured.
17. the equipment of claim 15, wherein above-mentioned network node also comprises a router.
18. the equipment of claim 17, wherein above-mentioned measured end-user quality of service is based on the overall network end-user quality of service from the above-mentioned report of above-mentioned network node.
19. the equipment of claim 18, wherein above-mentioned quality of service supervisory process utilizes above-mentioned report to upgrade network model.
20. the source that the equipment of claim 19, wherein above-mentioned quality of service supervisory process utilize above-mentioned network model to come marking terminal customer service quality to descend.
21. the equipment of claim 14, the end-user quality of service for this first end points is measured in the report that the utilization of wherein above-mentioned quality of service supervisory process sends out from above-mentioned first end points.
22. the equipment of claim 15, the wherein above-mentioned first end points measure link parameter, measuring equipment parameter and for coming measuring terminals customer service quality based on above-mentioned link parameter with communicating by letter of second end points.
23. the method for claim 8, wherein the dynamic adjustment of network is included in the combined optimization of the wireless connections in the packet switching network.
24. the method for claim 12, wherein gateway is connected packet switching network by wireless connections with another packet switching network.
25. the equipment of claim 15, wherein network node also comprises a radio node.
26. the equipment of claim 25, wherein the quality of service supervisory process is dynamically adjusted the traffic carrying capacity of packet switching network based on measured end-user quality of service, dynamically adjusts to comprise and use the combined optimization of a wireless network access controller to wireless connections.
27. the equipment of claim 25, wherein node is the gateway between packet switching network and another packet switching network.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US20338098A | 1998-12-02 | 1998-12-02 | |
| US09/203,380 | 1998-12-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1335007A true CN1335007A (en) | 2002-02-06 |
Family
ID=22753750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99815990A Pending CN1335007A (en) | 1998-12-02 | 1999-11-19 | Method and apparatus for improving end-user quality of service in packet switched networks |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1135889A1 (en) |
| JP (1) | JP2002532003A (en) |
| CN (1) | CN1335007A (en) |
| AU (1) | AU2009200A (en) |
| WO (1) | WO2000033511A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100428694C (en) * | 2006-04-29 | 2008-10-22 | 华为技术有限公司 | Method and system for controlling IP bearing network service quality |
| CN100433675C (en) * | 2003-06-11 | 2008-11-12 | 中国科学院计算技术研究所 | Complete distributed type measurement coordination problem resolving method |
| CN100568825C (en) * | 2002-07-22 | 2009-12-09 | 意大利电信股份公司 | Monitor service method for quality, system and assembly and computer product in the telecommunications network |
| CN101779444B (en) * | 2006-05-02 | 2014-06-18 | 斯凯普公司 | User interface for handling call quality in a communication system |
| CN104205734A (en) * | 2012-04-27 | 2014-12-10 | 英特尔公司 | Qoe-aware radio access network architecture for http-based video streaming |
| CN105075183A (en) * | 2014-02-13 | 2015-11-18 | 华为技术有限公司 | Method and apparatus for detecting mobile communications network |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7099282B1 (en) | 1998-12-24 | 2006-08-29 | Mci, Inc. | Determining the effects of new types of impairments on perceived quality of a voice service |
| US7653002B2 (en) | 1998-12-24 | 2010-01-26 | Verizon Business Global Llc | Real time monitoring of perceived quality of packet voice transmission |
| US7085230B2 (en) * | 1998-12-24 | 2006-08-01 | Mci, Llc | Method and system for evaluating the quality of packet-switched voice signals |
| US6807156B1 (en) | 2000-11-07 | 2004-10-19 | Telefonaktiebolaget Lm Ericsson (Publ) | Scalable real-time quality of service monitoring and analysis of service dependent subscriber satisfaction in IP networks |
| ATE408968T1 (en) * | 2001-06-15 | 2008-10-15 | Ascom Schweiz Ag | EVALUATION OF THE QUALITY OF SERVICE BY COMPARISONING THE CURRENT QUALITY OF SERVICE WITH THE QUALITY OF SERVICE AGREEMENT BETWEEN THE USER AND THE NETWORK |
| EP1802121B1 (en) * | 2001-09-10 | 2014-02-19 | Telefonaktiebolaget L M Ericsson (publ) | Information provisioning system, device and methods |
| DE10163530A1 (en) * | 2001-12-21 | 2003-07-03 | Siemens Ag | Method of monitoring the quality of service in packet-oriented networks |
| US20040032828A1 (en) * | 2002-08-16 | 2004-02-19 | Cellglide Technologies Corp. | Service management in cellular networks |
| EP1537715A1 (en) * | 2002-08-26 | 2005-06-08 | Koninklijke Philips Electronics N.V. | Internet device providing quality and link information |
| WO2004027580A2 (en) * | 2002-09-20 | 2004-04-01 | Nortel Networks Limited | System and method for managing an optical networking service |
| JP4520705B2 (en) * | 2003-04-11 | 2010-08-11 | パナソニック株式会社 | Communication system and communication method |
| US8140980B2 (en) | 2003-08-05 | 2012-03-20 | Verizon Business Global Llc | Method and system for providing conferencing services |
| US7466652B2 (en) * | 2003-08-14 | 2008-12-16 | Telcordia Technologies, Inc. | Auto-IP traffic optimization in mobile telecommunications systems |
| CA2536391A1 (en) | 2003-08-21 | 2005-03-10 | Vidiator Enterprises Inc. | Quality of experience (qoe) metrics for wireless communication networks |
| US20050108444A1 (en) * | 2003-11-19 | 2005-05-19 | Flauaus Gary R. | Method of detecting and monitoring fabric congestion |
| GB0513294D0 (en) * | 2005-06-29 | 2005-08-03 | Nokia Corp | Quality assessment for telecommunications network |
| EP1798897B1 (en) * | 2005-12-14 | 2008-06-18 | NTT DoCoMo, Inc. | Apparatus and method for determining transmission policies for a plurality of applications of different types |
| JP4915171B2 (en) * | 2006-08-11 | 2012-04-11 | 富士通株式会社 | Communication terminal device and communication method |
| US7773510B2 (en) | 2007-05-25 | 2010-08-10 | Zeugma Systems Inc. | Application routing in a distributed compute environment |
| US7706291B2 (en) | 2007-08-01 | 2010-04-27 | Zeugma Systems Inc. | Monitoring quality of experience on a per subscriber, per session basis |
| GB0718980D0 (en) | 2007-09-27 | 2007-11-07 | Skype Ltd | User interface |
| US8374102B2 (en) | 2007-10-02 | 2013-02-12 | Tellabs Communications Canada, Ltd. | Intelligent collection and management of flow statistics |
| JP5127062B2 (en) * | 2009-01-08 | 2013-01-23 | シャープ株式会社 | Network failure detection device, data relay device, network failure detection method, network failure detection system, and network failure detection program |
| JP2009105949A (en) * | 2009-01-23 | 2009-05-14 | Panasonic Corp | TERMINAL CAPABLE OF EXECUTING QoS CONTROL |
| WO2013114463A1 (en) * | 2012-02-02 | 2013-08-08 | Hitachi, Ltd. | Computer system and management method thereof |
| WO2014154263A1 (en) * | 2013-03-27 | 2014-10-02 | Telefonaktiebolaget L M Ericsson (Publ) | Quality of experience in communication networks |
| MY174662A (en) * | 2014-01-08 | 2020-05-05 | Wafina Sdn Bhd | Self-learning and intelligent system for continually improving quality and performance of multimedia conference |
-
1999
- 1999-11-19 EP EP99963719A patent/EP1135889A1/en not_active Withdrawn
- 1999-11-19 AU AU20092/00A patent/AU2009200A/en not_active Abandoned
- 1999-11-19 WO PCT/SE1999/002133 patent/WO2000033511A1/en not_active Application Discontinuation
- 1999-11-19 CN CN99815990A patent/CN1335007A/en active Pending
- 1999-11-19 JP JP2000586045A patent/JP2002532003A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100568825C (en) * | 2002-07-22 | 2009-12-09 | 意大利电信股份公司 | Monitor service method for quality, system and assembly and computer product in the telecommunications network |
| CN100433675C (en) * | 2003-06-11 | 2008-11-12 | 中国科学院计算技术研究所 | Complete distributed type measurement coordination problem resolving method |
| CN100428694C (en) * | 2006-04-29 | 2008-10-22 | 华为技术有限公司 | Method and system for controlling IP bearing network service quality |
| CN101779444B (en) * | 2006-05-02 | 2014-06-18 | 斯凯普公司 | User interface for handling call quality in a communication system |
| CN104205734A (en) * | 2012-04-27 | 2014-12-10 | 英特尔公司 | Qoe-aware radio access network architecture for http-based video streaming |
| CN104205734B (en) * | 2012-04-27 | 2018-11-09 | 英特尔公司 | The radio access network framework that QoE for the dynamic image distribution based on HTTP knows |
| CN105075183A (en) * | 2014-02-13 | 2015-11-18 | 华为技术有限公司 | Method and apparatus for detecting mobile communications network |
| US10075870B2 (en) | 2014-02-13 | 2018-09-11 | Huawei Technologies Co., Ltd. | Mobile communications network detection method and apparatus |
| CN105075183B (en) * | 2014-02-13 | 2018-10-30 | 华为技术有限公司 | Mobile communications network detection method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2000033511A1 (en) | 2000-06-08 |
| JP2002532003A (en) | 2002-09-24 |
| AU2009200A (en) | 2000-06-19 |
| EP1135889A1 (en) | 2001-09-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1335007A (en) | Method and apparatus for improving end-user quality of service in packet switched networks | |
| US7515583B2 (en) | Method and apparatus for providing a configurable quality of service threshold for voice over internet protocol | |
| EP2119204B1 (en) | Method and arrangement for video telephony quality assessment | |
| JP3764903B2 (en) | Layer 3 service quality recognition trigger | |
| US20020141392A1 (en) | Gateway apparatus and voice data transmission method | |
| EP1327323B1 (en) | Method and device for monitoring quality of service in packet based networks | |
| US20040160979A1 (en) | Source and channel rate adaptation for VoIP | |
| US7046636B1 (en) | System and method for adaptively improving voice quality throughout a communication session | |
| CN101507164A (en) | Method and arrangement for adapting transmission of encoded media | |
| JP2003318966A (en) | Bit rate control method and apparatus for real time communication | |
| US8787196B2 (en) | Method of providing voice over IP at predefined QOS levels | |
| CN101997729A (en) | Network control method and device | |
| EP1364488A1 (en) | Quality of service monitor | |
| US8824313B2 (en) | Data compression in a distributed monitoring system | |
| US20070297331A1 (en) | Optimising Resource Usage in a Packet Switched Network | |
| US7808912B2 (en) | Devices, softwares and methods for incorporating burstiness of packet loss metric in QoS based network routing | |
| EP2365712A2 (en) | Handoff metric for multiple transmission technologies | |
| US9078166B2 (en) | Method for determining an aggregation scheme in a wireless network | |
| US20040085898A1 (en) | Method for evaluating the quality of service of a telecommunication link via a network | |
| Gardner et al. | Using optimization to achieve efficient quality of service in voice over IP networks | |
| US20070275713A1 (en) | Optimising Resource Usage In A Packet Switched Network | |
| CN110113794B (en) | Dynamic and static evaluation method for path quality of wireless network | |
| CA2286415C (en) | Method and apparatus for providing a configurable quality of service threshold for voice over internet protocol | |
| Myakotnykh et al. | Adaptive speech quality management in voice-over-ip communications | |
| Rodrigues et al. | QoE assessment of VoIP in next generation networks |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| C10 | Entry into substantive examination | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |