EP2606623A1 - Etablissement d'un flux de paquets possédant une qualité de service symétrique par négociation de l'indicateur de qualité - Google Patents
Etablissement d'un flux de paquets possédant une qualité de service symétrique par négociation de l'indicateur de qualitéInfo
- Publication number
- EP2606623A1 EP2606623A1 EP11743092.6A EP11743092A EP2606623A1 EP 2606623 A1 EP2606623 A1 EP 2606623A1 EP 11743092 A EP11743092 A EP 11743092A EP 2606623 A1 EP2606623 A1 EP 2606623A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- value
- equipment
- field
- transmitted
- received
- 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.)
- Withdrawn
Links
- 230000011664 signaling Effects 0.000 claims abstract description 29
- 230000006854 communication Effects 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000008186 active pharmaceutical agent Substances 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 229920001690 polydopamine Polymers 0.000 description 2
- 206010002953 Aphonia Diseases 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 230000007175 bidirectional communication Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- HRULVFRXEOZUMJ-UHFFFAOYSA-K potassium;disodium;2-(4-chloro-2-methylphenoxy)propanoate;methyl-dioxido-oxo-$l^{5}-arsane Chemical compound [Na+].[Na+].[K+].C[As]([O-])([O-])=O.[O-]C(=O)C(C)OC1=CC=C(Cl)C=C1C HRULVFRXEOZUMJ-UHFFFAOYSA-K 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
- H04L47/2408—Traffic characterised by specific attributes, e.g. priority or QoS for supporting different services, e.g. a differentiated services [DiffServ] type of service
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
- H04L47/2425—Traffic characterised by specific attributes, e.g. priority or QoS for supporting services specification, e.g. SLA
- H04L47/2433—Allocation of priorities to traffic types
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
- H04L47/2441—Traffic characterised by specific attributes, e.g. priority or QoS relying on flow classification, e.g. using integrated services [IntServ]
-
- 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
- H04L65/80—Responding to QoS
Definitions
- the present invention is reluctive to reseve multimedia communication.
- These networks can transmit traffic of different sizes (voice, video, data ...) corresponding to voried applications: telephony, videophony, internet noviggtion, file downloading, real-time textual discussion ("instant messaging” or "instant messaging”). chat ”) ...
- This traffic is conventionally transmitted in the form of packet streams, in particular IP packet (for" Internet Protocol ").
- IP packet for" Internet Protocol ".
- the same application message can be transmitted in several IP packets and it must be reconstructed on receipt before delivery to the application.
- These applications and these types of traffic are associated with different quality of service criteria and, since the transmission capacity of the networks is limited, there appears to be a need to give greater priority to certain applications / traffic pairs than to others. For example, in the case of a voice call, the delay taken by some packets may cause a loss of voice quality. In the worst case, the audio message may be inaudible or incomprehensible.
- DiffServ mechanism as defined in particular in RFC 2474 of the I ETF, "Definition of the Differentiated Field Services (DS Field) in the IPv A and IPv6 Headers".
- This DiffServ mechanism is to insert into the packets of a stream a field, DS Field, the value of which determines a class of service (or code-point).
- Network devices located on the path of the packet stream must read the DS Field and process retransmission of packets based on this value, with the highest class of service packets being the highest. priority.
- Each device inserting a class of service into a packet stream determines the value according to its own mechanisms and according to the different flows that it may have to manage. These mechanisms may depend on the supplier of the equipment.
- bidirectional communication it can often result in each of the two terminals (or associated access equipment) using different policies to determine the class of service.
- the flows of each direction belong to different classes of service and, therefore, the behavior of the communication network with respect to them is different and generate different perceived qualities of service for the two directions.
- an equipment flow connected to an echo-sensitive network could require a decrease in the delay. If this is not applied, users may suffer from echo problems (the delay parameter amplifies the echo perception).
- the object of the invention is to overcome this problem by providing a mechanism that guarantees the same perceived quality of service for all the directions of a communication session.
- the invention relates to a network equipment comprising means for establishing a packet flow with another equipment through a communication network, means for determining a first value of a priority indicator in depending on the type of this data flow and means for exchanging with this other equipment signaling messages to allow the establishment of the data flow.
- the equipment of the invention furthermore has means for inserting this first value in the first of the signaling messages and means for, on receipt of a signaling message (si, s2) comprising a value received from the indicator of priority, determining a value issued from the received value and inserting this value transmitted in the packets of the packet stream.
- the invention also relates to a method for establishing a packet flow with another equipment through a communication network, comprising a step of determining a first value of a priority indicator based on the type of data flow and a step of exchange, with this other equipment, signaling messages to allow the establishment of data flow.
- the first value is inserted into the first of these signaling messages.
- AT receiving a signaling message having a value received from this priority indicator a value transmitted is determined from this received value, and inserted into the packets of the packet stream.
- the value emitted is the maximum value between the value received and the value determined by the equipment as a function of the type of packet flow.
- the priority indicator may be in accordance with the DiffServ mechanism and the equipment may then be adapted to insert the third value in the "DS Field" field of the packet stream.
- the value sent can be inserted into an SDP compliant attribute in the signaling messages.
- the value sent can be inserted into a "DS Field" field of packets of the packet stream.
- the implementation of a session on a communication network generally comprises two phases: a phase of establishment, during which the parties to the session exchange signaling messages, and a phase of communication proper during which the parties exchange the data: voice, video, text ...
- two pieces of equipment A and B are connected via a communication network N.
- the invention is quite capable of being applied with more parts, and so in the case of "conferences" audios or videos.
- Both devices can be communication terminals: fixed or mobile phones, computers, PDAs (Personal Digital Assistants PDAs) and so on.
- the communication may be a communication between a content server and a communication terminal allowing the user of the latter to access audio, video content ... It may also be virtual equipment.
- the equipment A initiates the creation of the communication session. It sends equipment B a first signaling message, SI.
- This message may typically be a SIP compliant invitation message as defined in IETF RFC 3261, Session invitation Protocol.
- This "Invite” message may be relayed by various devices, such as "SIP Proxy", within the communication network N. These are not shown in FIG. 1 and will not be described any more insofar as they do not influence the invention itself.
- the equipment A has means for determining a value of a priority indicator p as a function of the type of the data stream that must compose the communication session.
- the type of data to be transmitted is called “type” here: video, audio, audio-video, text, real-time text of the "messaging” or “chat” type, etc.
- the type may furthermore be more accurate and it may be possible to decline a grosgrain type as "video" into several types.
- the supplier of the equipment A generally sets a correspondence table between these types of data streams and a value of the priority indicator.
- This priority indicator is preferably in accordance with the DiffServ mechanism as specified by RFC 2474, "Definition of the Differentiated Field Service (DS Field) in the IPv4 and IPv6 Headers".
- the equipment A can be provided to directly have a correspondence table between type of data flow and "codepoint".
- the equipment has means for inserting this value, v1, into the first signaling message S I, that is to say the invitation message.
- This value can be inserted into an appropriate SDP (Session Description Protocol) attribute as defined by RFC 4566 of the IET.
- This attribute can be 8-bit encoded. For example, it can be called "Traffic-class”.
- this attribute can be of the form:
- the value that can be taken by this attribute is an integer between 0 and 255.
- the equipment B On receipt of the signaling message SI, the equipment B must read this received value vl of the priority indicator p.
- I l refers to the transmitting equipment Has a signaling message S2 which, conventionally, is a message SI P "200 Ok". It also has means for inserting in this signaling message S2 an "emitted" value of the priority indicator p. This value sent is determined from the value received v1. According to one embodiment of the invention, this transmitted value (v3) is equal to the received value.
- this value emitted is equal to the maximum between the received value v1 and a value determined by the type of data flow.
- the equipment A has means for determining a value v2 for the priority indicator p associated with the type of data flow. It can determine the type of data flow through other fields and attributes of the SI signaling message.
- the attribute "m" of the description of the medium, SDP can be used to determine this value v2.
- the equipment A may return a signaling message according to S3. This may be a SIP "ACK" message.
- the devices A and B also have means for establishing the packet flow F through the communication network N, according to the modalities and parameters negotiated during the signaling messages (CODEC etc.).
- this value may be in accordance with DiffServ specifications.
- it may be 8-bit coded with a 6-bit DSCP field (Differeniiaied Services CodePoinf) as specified in paragraph 3 of RFC 2474 of the I ETF.
- the value of the priority indicator can be directly inserted into the field "DS Field" of the outgoing packets.
- the insertion into the DS field of the packets is carried out in a manner known per se.
- the way in which the inserted value is determined is, on the other hand, novel: according to the invention, an equipment according to the invention must therefore choose as the DiffServ indicator to use for a packet flow the value received in the last signaling message received concerning this value. flux.
- the packet stream has the same DiffServ value in both directions.
- the transmission of the packets is therefore symmetrical and the quality of service perceived by the two equipments A and B is identical.
- the embodiments described above use the DiffServ mechanism, the invention is not limited to this mechanism but can instead be applied to any protocol that makes it possible to define a priority or a quality of service indicator at a specific location. packet of data.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Communication Control (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1056685A FR2964001B1 (fr) | 2010-08-20 | 2010-08-20 | Etablissement d'un flux de paquets possedant une qualite de service symetrique par negociation de l'indicateur de qualite |
| PCT/FR2011/051589 WO2012022867A1 (fr) | 2010-08-20 | 2011-07-05 | Etablissement d'un flux de paquets possédant une qualité de service symétrique par négociation de l'indicateur de qualité |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2606623A1 true EP2606623A1 (fr) | 2013-06-26 |
Family
ID=43736145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11743092.6A Withdrawn EP2606623A1 (fr) | 2010-08-20 | 2011-07-05 | Etablissement d'un flux de paquets possédant une qualité de service symétrique par négociation de l'indicateur de qualité |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US9306859B2 (fr) |
| EP (1) | EP2606623A1 (fr) |
| JP (1) | JP5941914B2 (fr) |
| KR (1) | KR101502250B1 (fr) |
| CN (1) | CN103069773A (fr) |
| FR (1) | FR2964001B1 (fr) |
| WO (1) | WO2012022867A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9591108B2 (en) * | 2013-08-20 | 2017-03-07 | Avaya Inc. | Management of network impairment by communication endpoints |
| CN109005126B (zh) * | 2017-06-06 | 2020-06-02 | 华为技术有限公司 | 数据流的处理方法、设备和计算机可读存储介质 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020165966A1 (en) * | 2001-01-10 | 2002-11-07 | Widegren Ina B. | Method and apparatus for coordinating end-to-end quality of service requirements for media flows in a multimedia session |
| US7050396B1 (en) * | 2000-11-30 | 2006-05-23 | Cisco Technology, Inc. | Method and apparatus for automatically establishing bi-directional differentiated services treatment of flows in a network |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6382142A (ja) * | 1986-09-26 | 1988-04-12 | Nec Corp | 蓄積交換網における優先交換処理方式 |
| JP2001308925A (ja) * | 2000-02-14 | 2001-11-02 | Fujitsu Ltd | ネットワークシステムの優先制御方法 |
| US7352770B1 (en) * | 2000-08-04 | 2008-04-01 | Intellon Corporation | Media access control protocol with priority and contention-free intervals |
| US6980523B1 (en) * | 2001-01-23 | 2005-12-27 | Sprint Spectrum L.P. | Method and system for facilitating end-to-end quality of service in a wireless packet data system |
| US7379461B2 (en) * | 2004-04-26 | 2008-05-27 | Alcatel Lucent | System and method for indicating network quality of service capability as a presence attribute of an end-user |
| CN1882107B (zh) * | 2005-06-17 | 2010-12-08 | 华为技术有限公司 | 一种在下一代网络中实现信令网关双归属的方法 |
| CN100563202C (zh) * | 2005-09-01 | 2009-11-25 | 华为技术有限公司 | 提供差分服务的方法 |
| US20080089324A1 (en) * | 2006-10-13 | 2008-04-17 | Cisco Technology, Inc | Indicating or remarking of a dscp for rtp of a flow (call) to and from a server |
| US7760643B2 (en) * | 2007-04-09 | 2010-07-20 | Telcordia Technologies, Inc. | Automatic policy change management scheme for DiffServ-enabled MPLS networks |
-
2010
- 2010-08-20 FR FR1056685A patent/FR2964001B1/fr not_active Expired - Fee Related
-
2011
- 2011-07-05 US US13/813,826 patent/US9306859B2/en not_active Expired - Fee Related
- 2011-07-05 JP JP2013524467A patent/JP5941914B2/ja not_active Expired - Fee Related
- 2011-07-05 WO PCT/FR2011/051589 patent/WO2012022867A1/fr not_active Ceased
- 2011-07-05 KR KR1020137004259A patent/KR101502250B1/ko not_active Expired - Fee Related
- 2011-07-05 EP EP11743092.6A patent/EP2606623A1/fr not_active Withdrawn
- 2011-07-05 CN CN2011800403153A patent/CN103069773A/zh active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7050396B1 (en) * | 2000-11-30 | 2006-05-23 | Cisco Technology, Inc. | Method and apparatus for automatically establishing bi-directional differentiated services treatment of flows in a network |
| US20020165966A1 (en) * | 2001-01-10 | 2002-11-07 | Widegren Ina B. | Method and apparatus for coordinating end-to-end quality of service requirements for media flows in a multimedia session |
Non-Patent Citations (1)
| Title |
|---|
| See also references of WO2012022867A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2964001A1 (fr) | 2012-02-24 |
| WO2012022867A1 (fr) | 2012-02-23 |
| US9306859B2 (en) | 2016-04-05 |
| JP2013537766A (ja) | 2013-10-03 |
| US20130163423A1 (en) | 2013-06-27 |
| CN103069773A (zh) | 2013-04-24 |
| KR20130032400A (ko) | 2013-04-01 |
| JP5941914B2 (ja) | 2016-06-29 |
| KR101502250B1 (ko) | 2015-04-02 |
| FR2964001B1 (fr) | 2013-02-08 |
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