CN101005410A - Detecting method and device for loading state and method and system for distributing loading resource - Google Patents
Detecting method and device for loading state and method and system for distributing loading resource Download PDFInfo
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- CN101005410A CN101005410A CN200610124231.9A CN200610124231A CN101005410A CN 101005410 A CN101005410 A CN 101005410A CN 200610124231 A CN200610124231 A CN 200610124231A CN 101005410 A CN101005410 A CN 101005410A
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- 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
- H04L65/10—Architectures or entities
- H04L65/102—Gateways
- H04L65/1043—Gateway controllers, e.g. media gateway control protocol [MGCP] controllers
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- 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
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
- H04L43/0817—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking functioning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
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- 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
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Abstract
The load - supporting resources allocation method includes following steps: (1) in soft exchange network, media gateway control equipment (MGCE) makes statistics for status messages of load supporting resources between each media gateway and each service access equipment; (2) based on status messages of load supporting resources, MGCE assigns load supporting resources for service call. In the invention, based on status messages of link between media gateway equipment and service access equipment, MGCE adjusts current strategy for controlling call, assigns load - supporting resources effectively and reasonably so as to raise utilization ratio of load - supporting resources, and success ratio of controlling call.
Description
Technical field
The present invention relates to the soft switch communications field, relate to a kind of loaded state detection method and device and carrying source distribution method and system specifically.
Background technology
NGN is the abbreviation of " next generation network (Next Generation Network) ", it is a core based on packet network, with the soft switch, multimedia integration business such as speech, video, data can be provided, adopt open, standard architecture, the next generation network of abundant business can be provided.It is a milestone on the telecommunications development history, indicates the arrival in new generation telecommunication network epoch.Angle from development, NGN is from traditional PSTN based on circuit switching (Public SwitchedTelephone Network, PSTN) march toward gradually in based on packet switching, it has carried all business of original PSTN network, great amount of data transmission is unloaded to interconnection protocol (Intemet Protocol, IP) in the network to alleviate the heavy burden of PSTN network, increase and strengthened many old and new's business with the new features of IP technology again.
NGN is a comprehensive network, and we can be divided into four layers to it: service layer, key-course, transport layer and Access Layer on view of function.Wherein:
Access Layer: support multimedia service and user's access.
Transport layer: adopt group technology, a comprehensive delivery platform is provided.
Key-course: the control core that is soft switchcall server.Finish multimedia call and professional functions such as control.
Operation layer: various value-added services, multimedia service and third party's business are provided.
An important feature of NGN network is that carrying separates with control, also is that transport layer is separate to the calling control of business to the carrying and the key-course of business.Do not possess in the network of such characteristics in early days, for example in the mobile communication system in early days, base station controller (Base Station Controller, BSC) equipment and mobile services switching centre (Mobile-services Switching Centre such as, MSC) it is man-to-man that networking connects, and just a BSC can only be controlled by unique MSC; And after having adopted carrying and framework that control separates, for example in the NGN network, an access device of Access Network side can connect a plurality of Media Gateway Controllers (Media Gateway Controller, MGC) control under a plurality of media gateway devices (Media Gateway, MGW).Different MG C and MGW according to the signaling process mode can have two kinds of following classical group net modes:
MGW does not have built-in SGW situation, as shown in Figure 1.
The built-in SGW situation of MGW, as shown in Figure 2.
An access device by above-mentioned Access Network side can connect this networking mode of a plurality of MGW under a plurality of MGC controls, the backup capabilities of MGC aspect and MGW aspect just can be provided, MGC neatly the distribution of controlling call on MGW to realize the equilibrium treatment of traffic in the MGC control area.
But, in actual networking is used,, then have some problems if the bearing link between MGW and the access network side apparatus breaks down or congested situation in the above-mentioned network model.ITU-T (Intemational Telecommunication Union-Telecommunication work task, International Telecommunications Union-telecommunications operations group) H.248 media gateway controlling has defined a kind of resource of ephemeral type in the agreement, for example, ATM among the MGW (Asynchronous Transfer Mode, asynchronous transfer mode) or IP equivalent-load resource just belong to such resource; For such resource, MGC can't learn the loaded state of the overall situation between MGW and the access network side apparatus.Fig. 3 is a typical network model figure, and wherein the carrying between MGW and the access network side apparatus promptly is ATM or IP bearing resource, and the resource endpoint type corresponding at MGW is exactly the H.248 defined ephemeral type of agreement of ITU-T.If in application process, bearing resource between MGW1 and the access network side apparatus occurs that most of fault, major part are used, whole faults or all be used a kind of in the medium abnormal conditions, and but the bearing resource between MGW2 and the access network side apparatus is time spent free time, because MGC can't learn the unusual situation of bearing resource between MGW1 and the access network side apparatus, cause MGC still to use normal call distribution strategy, be assigned to equably on MGW1 and the MGW2 and will call out still.Obviously, the reasonable disposition that this is unfavorable for calling out on bearing resource has influenced the utilance of resource, has also influenced the reliability of service call.
Summary of the invention
The technical problem that the present invention solves is to propose a kind of loaded state detection method and device and distribution method for beared resource and system, to realize that MGC adjusts the call distribution strategy targetedly according to the state of bearing resource between MGW and the access network side apparatus, distribute bearing resource rationally and effectively.
For addressing the above problem, the present invention proposes following technical scheme.This scheme comprises a kind of loaded state detection method and device and distribution method for beared resource and system.
Wherein, the loaded state detection method comprises step:
The carrying quality of a, detection and the pairing Business Stream of described its associated device of flexible exchanging network equipment;
B, determine the state of the bearing resource between described flexible exchanging network equipment and the described associated device according to the carrying quality of described detected Business Stream.
Wherein, step a passes through the carrying quality that one or several detect and described flexible exchanging network equipment associated device corresponding service flows in the following manner:
Support the described flexible exchanging network equipment of RTCP Real-time Transport Control Protocol and support the described associated device of RTCP Real-time Transport Control Protocol to detect the carrying quality of described Business Stream by described RTCP Real-time Transport Control Protocol;
Support the described flexible exchanging network equipment of two-way forwarding testing mechanism and support the described associated device of two-way forwarding testing mechanism to detect the carrying quality of described Business Stream by described two-way forwarding testing mechanism;
Described flexible exchanging network equipment is monitored the carrying quality of the described Business Stream of described Business Stream state-detection by the local terminal folk prescription.
Wherein, the carrying quality of described Business Stream obtains by the packet loss of the packet of statistics shake of described Business Stream and Business Stream.
The loaded state checkout gear comprises:
Detecting unit is used to detect the carrying quality with the pairing Business Stream of this device place equipment associated device;
Identifying unit is used for according to this device place equipment of carrying quality judging of the detected Business Stream of described detecting unit and the state of the bearing resource between the described associated device.
Distribution method for beared resource comprises step:
The state information of bearing resource between each media gateway of media gateway controlling device learns in a, the described flexible exchanging network and each the service access equipment;
B, described media gateway controlling equipment are that service call distributes bearing resource according to the state information of described bearing resource.
Wherein, step a specifically comprises:
A1, the loaded state checkout gear that is used to detect the bearing resource state information detect the state information of bearing resource between described each media gateway and each the service access equipment;
A2, described loaded state checkout gear are given described media gateway controlling equipment with described bearing resource state information notification.
As another execution mode, can comprise step again before the step a2:
The state information that described media gateway controlling equipment is inquired about described bearing resource to described loaded state checkout gear.
Wherein, described loaded state checkout gear is built in the described media gateway device;
Described media gateway device adopts the agreement of described media gateway device and described media gateway controlling communication between devices or signaling channel to give described media gateway device with the status information reporting of the detected bearing resource of described loaded state checkout gear.
The agreement of described media gateway device and described media gateway controlling communication between devices comprises that MGCP H.248; The signaling channel of described media gateway device and described media gateway controlling communication between devices comprises the signaling transportation protocol SIGTRAN signaling channel of setting up by between built-in SGW equipment of described media gateway device and the media gateway controlling equipment.Described loaded state checkout gear is built in the described service access equipment;
As another execution mode, described loaded state checkout gear is built in the described service access equipment;
Described service access equipment adopts the signaling channel of described service access equipment and described media gateway controlling communication between devices to give described media gateway device with the status information reporting of the detected bearing resource of described loaded state checkout gear.
Wherein, the signaling channel of described service access equipment and described media gateway controlling communication between devices is the signaling transportation protocol SIGTRAN signaling channel of described service access equipment by setting up between SGW equipment and the media gateway controlling equipment.
Correspondingly, the loaded state distribution system in this technical scheme comprises:
The loaded state checkout gear is used for detecting the state of bearing resource between described flexible exchanging network service access equipment and the media gateway device;
The resource control appliance is used for obtaining from described loaded state checkout gear the state information of described bearing resource, and is that service call distributes bearing resource according to the state information of the described bearing resource that obtains.
Wherein, described resource control appliance from the process that described loaded state checkout gear obtains the state information of described bearing resource is: described loaded state checkout gear is initiatively reported the state information of described bearing resource to the resource control appliance.
As another execution mode, described resource control appliance from the process that described loaded state checkout gear obtains the state information of described bearing resource is:
Described resource control appliance is initiated the request of the described bearing resource state information of inquiry to described loaded state checkout gear;
Described loaded state checkout gear feeds back the state information of the bearing resource of described inquiry to described resource control appliance.
Wherein, described resource control appliance is the media gateway controlling equipment in the described flexible exchanging network, and described loaded state checkout gear is built in the media gateway device in the described flexible exchanging network;
Described media gateway device adopts the agreement of described media gateway device and described media gateway controlling communication between devices or signaling channel to give described media gateway device with described bearing resource status information reporting.
As another execution mode, described resource control appliance is the media gateway controlling equipment in the described flexible exchanging network, and described loaded state checkout gear is built in the service access equipment in the described flexible exchanging network;
Described service access equipment adopts the signaling channel of described service access equipment and described media gateway controlling communication between devices to give described media gateway device with described bearing resource status information reporting.
Compared with prior art, media gateway controlling equipment can obtain the fault or the state information such as congested of the bearing resource between the access network side apparatus and media gateway in the network among the present invention, and can adjust existing call control strategy according to the state information of this bearing resource, distribute bearing resource effective and reasonablely, improve the utilization ratio of bearing resource, also improved the success rate of calling out control simultaneously.
Description of drawings
Fig. 1 is prior art MGW NGN network structure when not having built-in SGW;
Fig. 2 is prior art MGW NGN network structure when built-in SGW is arranged;
Fig. 3 is a prior art NGN network organizing illustraton of model;
Fig. 4 is distribution method for beared resource key step figure of the present invention;
Fig. 5 is an embodiment of the invention application background networking diagram;
Fig. 6 is loaded state checkout gear example structure figure of the present invention;
Fig. 7 is a loaded state detection method embodiment block diagram of the present invention;
Fig. 8 is the distribution method for beared resource first embodiment block diagram of the present invention;
Fig. 9 is bearing resource distribution system configuration figure of the present invention.
Embodiment
As shown in Figure 4, core concept of the present invention is: in flexible exchanging network, media gateway device MGW or access network side apparatus detect the state of the bearing resource between MGW and the access network side apparatus, and give media gateway controller MGC with the state information report of this bearing resource, media gateway controller MGC is reasonably adjusted the call distribution strategy again according to the bearing resource state information of being added up.Adopt the present invention, improved the service efficiency of bearing resource, also improved the reliability of service call and transmission.
With reference to the accompanying drawings embodiments of the invention are specifically described below.
Embodiments of the invention are applied in as shown in Figure 5 the flexible exchanging network.Wherein, the access network side apparatus inserts various media business from user side, and MGW equipment is finished the media resource conversion of the various media business that insert, and MGC realizes the control of MGW and various calling control.The access network side apparatus links to each other with MGW equipment by access network, and MGW links to each other with MGC by bearer network, and the access network side apparatus is set up signaling channel by SGW equipment and MGC, and MGW also sets up signaling channel with MGC by bearer network.Wherein, (Signaling GateWay's access network side apparatus SGW) links to each other, and MGW and SGW also can link to each other with different MGC by multilink with MGW and SGW respectively by multilink.
Bearing resource described in the present invention is construed as between access network side apparatus and the MGW or any bearer path between access network side apparatus and the MGC, shows as the bearing link between them in the present embodiment.
With above-mentioned networking structure figure is application background, at first the embodiment of loaded state checkout gear among the present invention is described below.
Fig. 6 is the structure chart of an embodiment of loaded state checkout gear of the present invention, is used for detecting at flexible exchanging network as shown in Figure 5 the state of the bearing link of MGW and access network side apparatus.This loaded state checkout gear is a module that is used to realize detecting the link-state information function, and in actual applications, this device can be a separate equipment, also can be a module that is built in the equipment relevant with link to be measured.Suppose that in the present embodiment, this loaded state checkout gear is to be built in and to treat MGW that sidelinks is relevant or the Link State detection module in the access network side apparatus.
This loaded state checkout gear 1 mainly comprises with lower unit:
Detecting unit 11 is used to detect the carrying quality with the MGW or the pairing Business Stream of access network side apparatus associated device at this device place.
When realizing, may further comprise the steps:
At first, determine that (EquipmentIdentify EID), and passes through MGW or the Business Stream of access network side apparatus and the corresponding relation of these device identifications EID to MGW or access network side apparatus associated device sign.
The device identification EID here can be any equipment mark mode, for example, EID can be radio frequency network controller identifier (Radio Network Controller-Identify, RNC-ID), base station controller sign (Base Station Controller-Identify, BSC-ID), media gateway sign (MediaGateway-Identify, MGW-ID) and some other access network side apparatus sign.
MGC is the portable device identification EID that has in to the signaling information of MGW or the transmission of access network side apparatus in advance, like this, after MGW or access network side apparatus receive these signaling informations, this accepts condition checkout gear just can obtain these device identifications EID according to these signaling informations, and determines the corresponding relation of these sign EID and Business Stream.Therefore this device can carry out dynamically recording to EID, just can write down all and EID this equipment associated device and the corresponding relation of these EID and Business Stream in the regular hour.
Determined with the EID of MGW or access network side apparatus associated device and with the corresponding relation of EID and Business Stream, just can the carrying quality of the EID corresponding service stream of appointment be detected.The mode that detects mainly comprises following several:
If the EID corresponding equipment of MGW or access network side apparatus and appointment is all supported RTCP Real-time Transport Control Protocol (Real-time Transport Control Protocol, RTCP), then MGW or access network side apparatus can use the loaded state measuring ability that defines among the RTCP, carrying quality to Business Stream between the above-mentioned terminal device detects, and promptly shake and/or the packet loss to bearing resource institute loaded service stream monitors.
If the EID corresponding equipment of MGW or access network side apparatus and appointment all supports two-way forwarding to detect (Bidirectional Forwarding Detection, BFD) mechanism, then MGW or access network side apparatus can use this mechanism that the packet loss of the signaling flow that is used to detect described bearing resource transmission and interrupts is monitored.
If the EID corresponding equipment of MGW or access network side apparatus and appointment does not meet above-mentioned two conditions, then MGW or access network side apparatus can monitor at one-sided shake and/or the packet loss to bearing resource institute loaded service stream of local terminal.
Determining unit 12 is used for determining the MGW at this device place or the state of the bearing resource between access network side apparatus and the described associated device according to the carrying quality of described detecting unit 11 detected Business Streams.
Add up in one default period by carrying quality the Business Stream of the EID corresponding equipment of appointment, also promptly the jitter conditions and the packet loss situation of related service stream are added up, just can determine the Link State of the bearing resource between MGW or access network side apparatus and this EID corresponding equipment.
Except said units, this device can also comprise notification unit 13, is used for giving other equipment with the state information notification of described determining unit 12 determined bearing resources.
After determining unit 12 has been determined the Link State of bearing resource between MGW or access network side apparatus and the associated device, notification unit 13 is notified to MGW or access network side apparatus with this link-state information, reports MGC by MGW or access network side apparatus by means of signaling.
On the basis of the embodiment of above-mentioned loaded state checkout gear, as shown in Figure 7, the embodiment of loaded state detection method of the present invention also can be described through the following steps:
Step S71 determines MGW or access network side apparatus associated device sign EID, and the corresponding relation of related service stream and these device identifications EID.
MGC is the portable device identification EID that has in to the signaling information of MGW or the transmission of access network side apparatus in advance, like this, after MGW or access network side apparatus receive these signaling informations, this accepts condition checkout gear just can obtain these device identifications EID according to these signaling informations, and determines the corresponding relation of these sign EID and Business Stream.This device can also carry out dynamically recording to EID, just can write down the EID of all peripheral equipments that is associated with this equipment in the regular hour, and the corresponding relation of these EID and Business Stream.
Step S72: the carrying quality that detects the pairing Business Stream of appointed equipment sign EID.
Determined with the EID of MGW or access network side apparatus associated device and with the corresponding relation of EID and Business Stream, just can the carrying quality of the EID corresponding service stream of appointment be detected.The mode that detects mainly comprises following several:
If the EID corresponding equipment of MGW or access network side apparatus and appointment is all supported RTCP Real-time Transport Control Protocol (Real-time Transport Control Protocol, RTCP), then MGW or access network side apparatus can use the loaded state measuring ability that defines among the RTCP, carrying quality to Business Stream between the above-mentioned terminal device detects, and promptly shake and/or the packet loss to bearing resource institute loaded service stream monitors.
If the EID corresponding equipment of MGW or access network side apparatus and appointment all supports two-way forwarding to detect (Bidirectional Forwarding Detection, BFD) mechanism, then MGW or access network side apparatus can use this mechanism that the packet loss of the signaling flow that is used to detect described bearing resource transmission and interrupts is monitored.
If the EID corresponding equipment of MGW or access network side apparatus and appointment does not meet above-mentioned two conditions, then MGW or access network side apparatus can monitor at one-sided shake and/or the packet loss to bearing resource institute loaded service stream of local terminal.
Step S73: the state of determining the bearing resource between MGW or access network side apparatus and the associated device according to the carrying quality of described detected Business Stream.
Add up in one default period by carrying quality the Business Stream of the EID corresponding equipment of appointment, also promptly the jitter conditions and the packet loss situation of related service stream are added up, just can determine the Link State of the bearing resource between MGW or access network side apparatus and this EID corresponding equipment.
Based on above-described loaded state checkout gear and method, the embodiment of distribution method for beared resource of the present invention mainly is based upon on the basis of following basic process.As shown in Figure 8, at first basic process of the present invention is described below, the branch situation specifically describes embodiment again.
Step S801, loaded state checkout gear detect the state information of the bearing link between MGW and the access network side apparatus.
Described loaded state checkout gear is a module that is used to realize detecting the link-state information function, and in actual applications, this device can be a separate equipment, also can be a module that is built in the equipment relevant with link to be measured.For example, in the present invention, this loaded state checkout gear can be the Link State detection module that is built among the MGW, also can be the Link State detection module that is built in the access network side apparatus.
The testing process of described Link State is carried out when the device initialize by the loaded state checkout gear, perhaps regularly carries out in equipment running process.The link-state information that is detected is safeguarded and regular update by the loaded state checkout gear.
Link-state information recited above mainly comprises link failure information and link congestion information.
Step S802, loaded state checkout gear are given MGC with the state information notification of detected each bearing link.
The loaded state checkout gear comprises two kinds of situations with the state information notification of detected each bearing link to MGC:
A kind of situation is: the loaded state checkout gear is initiatively notified the state information of the link that this device safeguards to MGC.For example, the loaded state checkout gear is notified link-state information to MGC termly according to the default time, and perhaps the loaded state detection arrangement monitors is just notified link-state information to MGC when Link State changes.
Another situation is: MGC after the loaded state checkout gear receives this query requests, replys the state information of the link that will inquire about to the state information of loaded state checkout gear inquiry relevant link to MGC.
Either way require the mode of mutual communication between MGC and the loaded state checkout gear to have the ability that to carry above-mentioned link-state information.
Step S803, MGC adjust the link assignment strategy according to the state information of each bearing link that is obtained.
MGC analyzes described link-state information after receiving the state information of each link from the loaded state checkout gear, adjusts the allocation strategy of each link circuit resource, thereby reaches the purpose of reasonably distributing each link circuit resource.
Be basic process of the present invention above, wherein the loaded state checkout gear is the functional module in built-in certain equipment; When this device is built in the distinct device, this invention just has different specific implementation methods.On the basis of above-mentioned basic process, it is specifically described below by different embodiment.
First embodiment describes be when above-mentioned loaded state checkout gear be specific embodiments of the present invention when being built in the Link State detection module of MGW.At this moment, above-mentioned basic process step is specially:
Step S811, be built in the state information that loaded state checkout gear among the MGW detects the bearing link between MGW and the access network side apparatus.
The loaded state checkout gear detects the state information of each the bar link that links to each other with the access network side apparatus termly in the MGW device initialize or in the process of equipment operation, and safeguards in the link-state information table and the link-state information of these links of regular update.
Step S812, loaded state checkout gear are given MGC by MGW with the state information notification of detected each bearing link.
The loaded state checkout gear comprises two kinds of situations for MGC the state information notification of detected each bearing link equally:
A kind of situation is: the loaded state checkout gear is initiatively notified the state information of the link that this device safeguards to MGC.For example, the loaded state checkout gear is notified link-state information to MGC termly according to the default time, and perhaps the loaded state detection arrangement monitors is just notified link-state information to MGC when Link State changes.
Another situation is: MGC after the loaded state checkout gear receives this query requests, replys the state information of the link that will inquire about to the state information of loaded state checkout gear inquiry relevant link to MGC.
The mode of mutual communication has the ability that can carry above-mentioned link-state information between above-mentioned MGW that either way requires loaded state checkout gear place and the MGC, and the loaded state checkout gear could send to MGC with link-state information.When specific implementation, can reach above-mentioned purpose in the following manner between MGC and the MGW:
H.248, mode 1, MGW notify link-state information to MGC by ITU-T.
Specifically can adopt following method to realize:
H.248 expanding " loaded state a reports " incident in the agreement, be used for the relevant link state information that MGW notifies this MGW to know to MGC.
The following parameter of ObservedEventsDescriptor descriptor definition in " loaded state reports " incident of being expanded: media gateway device sign and loaded state information.Wherein media gateway device is designated the equipment identification information of the MGW of notice link-state information, and this equipment identification information can be provided with by manual.The state information of the relevant link that loaded state information is known for this MGW, this information comprise the chain line that links to each other with this equipment and the state information of this chain line link corresponding; Wherein the chain line can be the unique link number of the overall situation in MGC equipment.
MGW utilize Notify message will include the ObservedEventsDescriptor descriptor above-mentioned parameter " loaded state reports " incident send to MGC.
Like this, after MGC receives this " loaded state reports " incident, just can from the parameter of ObservedEventsDescriptor descriptor, know each link-state information that this MGW safeguards.
Need to prove that above-mentioned is to require to carry out according to the regulation to protocol extension of agreement H.248 in " loaded state reports " incident of protocol extension H.248, is the expansion of being done within the consensus standard range of definition H.248.In actual applications, only needing to adopt the both sides of this protocol communication to discern transmitted information mutually gets final product.
SIGTRAN is the transmission control protocol that is used for transmitting pstn signaling on IP network, for different application layer signalings, needs different adaptation layer protocols adaptive.The transmission that between soft switch and SGW, realizes the Signaling System Number 7 agreement for common application, adopt message transfer part third level agreement (Message Transfer Part3, MTP3) (MTP3-User AdaptationLayer is M3UA) as adapting protocol for customer adaptation layer protocol.
For this situation, MGW can be in the following ways to MGC boy's link-state information:
(SS7 Signaling NetworkManagement SSNM) in the message, expands new " loaded state a reports " message at the Signaling System Number 7 webmaster quasi-protocol of M3UA.
The following parameter of definition in the content of " loaded state reports " message of being expanded: SGW device identification and loaded state information.Similarly, wherein the SGW device identification is the equipment identification information of the SGW of notice link-state information, and this equipment identification information can be provided with by manual.The state information of the relevant link that loaded state information is known for the MGW at this SGW place, this information comprise the chain line that links to each other with this equipment and the state information of this chain line link corresponding; Wherein the chain line can be the unique link number of the overall situation in MGC equipment.
SGW sends to MGC with the above-mentioned SSNM message that comprises link-state information.
Like this, after MGC receives this SSNM message, just can from the parameter of this message content, know each link-state information that this MGW safeguards.
Need to prove that equally the expansion of above-mentioned SSNM message to M3UA is to carry out according to the protocol extension mode of M3UA regulation, is the expansion of being done within M3UA standard definition scope.In actual applications, only needing to adopt the both sides of this protocol communication to discern transmitted information mutually gets final product.
Step S813, MGC adjust the link assignment strategy according to the state information of each bearing link that is obtained.
After MGC receives the state information of each link from MGW, each link-state information is analyzed, adjust the call distribution strategy targetedly, kept away and break down or congested link, thereby reach the purpose of reasonably distributing each link circuit resource, improving service reliability.
Second embodiment describes be when above-mentioned loaded state checkout gear be specific embodiments of the present invention when being built in the Link State detection module of access network side apparatus.This embodiment compares just on the main body of carrying out action and part specific implementation different with above-mentioned first embodiment, below only be described at its difference.In the present embodiment, technical scheme of the present invention specifically may further comprise the steps:
Step S821, loaded state checkout gear detect the state information of the bearing link between MGW and the access network side apparatus.
Step S822, loaded state checkout gear are given MGC by the access network side apparatus with the state information notification of detected each bearing link.
At this moment, different with step S12 among above-mentioned first embodiment is, the mode that is used for transmitting detected link-state information between access network side apparatus and the MGC is:
Mode 3, the access network side apparatus is notified link-state information by the SIGTRAN signaling channel between access network side apparatus and the MGC to MGC.
This mode and aforesaid way 2 are similar, and the sender of the link-state information of mode 3 that different is is the access network side apparatus.For this mode, the access network side apparatus also can be notified link-state information to MGC in the following manner:
Similarly, (SS7 Signaling NetworkManagement SSNM) in the message, expands new " loaded state a reports " message at the Signaling System Number 7 webmaster quasi-protocol of M3UA.
The following parameter of definition in the content of " loaded state reports " message of being expanded: access network side apparatus sign and loaded state information.Similarly, wherein the access network side apparatus is designated the identification information of the access network side apparatus of notice link-state information, and this equipment identification information can be provided with by manual.The state information of the relevant link that loaded state information is known for this access network side apparatus, this information comprise the chain line that links to each other with this equipment and the state information of this chain line link corresponding; Wherein the chain line can be the unique link number of the overall situation in MGC equipment.
The access network side apparatus sends to MGC with the above-mentioned SSNM message that comprises link-state information.
Like this, after MGC receives this SSNM message, just can from the parameter of this message content, know each link-state information that this MGW safeguards.
Step S823, MGC equipment are adjusted the link assignment strategy according to the state information of each bearing link that is obtained.
In actual applications, except the foregoing description, loaded state checkout gear among the present invention can also be for being built in the node device on the bearer network between MGW and the access network side apparatus, as router, it can be by the Routing Protocol between this router and the MGC to MGC notice bearing resource state.
In addition, the invention allows for a kind of bearing resource distribution system, be used to adopt above-mentioned method to realize reasonably distributing resource on these links according to the state information of bearing resource between access network side apparatus and the MGW.
Fig. 9 is the basic model figure of bearing resource distribution system of the present invention, and it comprises:
Wherein, in the practical application, the link detecting device of this system can be any functional module that can realize its function, can be built in MGW equipment, access network side apparatus and the relevant network management device, and resource control appliance wherein then can be media gateway controlling equipment.Above described each situation all corresponding an embodiment of bearing resource distribution system of the present invention, below these embodiment are illustrated respectively.
First embodiment: the resource control appliance is a MGC equipment, and the link detecting device is built in MGW equipment.
First embodiment among the corresponding above-mentioned distribution method for beared resource embodiment of this embodiment.
The link detecting device detects the state information of each the bar link that links to each other with the access network side apparatus termly in device initialize or in the process of equipment operation, and safeguards in the link-state information table and the link-state information of these links of regular update.
The link detecting device comprises two kinds of situations for MGC the state information notification of detected each bearing link equally:
A kind of situation is: the link detecting device is initiatively notified the state information of the link that this device safeguards to MGC.For example, the link detecting device is notified link-state information to MGC termly according to the default time, and perhaps the link detecting device monitoring is just notified link-state information to MGC when Link State changes.
Another situation is: MGC after the link detecting device receives this query requests, replys the state information of the link that will inquire about to the state information of link detecting device inquiry relevant link to MGC.
The mode of mutual communication has the ability that can carry above-mentioned link-state information between above-mentioned MGW that either way requires link detecting device place and the MGC, and the link detecting device could send to MGC with link-state information by MGW.When specific implementation, can reach above-mentioned purpose in the following manner between MGC and the MGW:
H.248, mode 1, MGW notify link-state information to MGC by ITU-T;
After MGC receives the state information of each link from MGW, each link-state information is analyzed, adjust the call distribution strategy targetedly, kept away and break down or congested link, thereby reach the purpose of reasonably distributing each link circuit resource, improving service reliability.
Second embodiment: the resource control appliance is a MGC equipment, and the link detecting device is built in the access network side apparatus.
Second embodiment among the corresponding above-mentioned distribution method for beared resource embodiment of this embodiment.
At this moment, the mutual practice process of this each equipment of system is as described below.
The link detecting device detects the state information of the bearing link between MGW and the access network side apparatus.
The link detecting device is given MGC with the state information notification of detected each bearing link.
At this moment, be that the mode that is used for transmitting detected link-state information between access network side apparatus and the MGC is: the access network side apparatus is notified link-state information by the SIGTRAN signaling channel between access network side apparatus and the MGC to MGC with different among above-mentioned first embodiment.
MGC equipment is adjusted the link assignment strategy according to the state information of each bearing link that is obtained.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (16)
1. a loaded state detection method is characterized in that, comprises step:
The carrying quality of a, detection and the pairing Business Stream of flexible exchanging network equipment associated device;
B, determine the state of the bearing resource between described flexible exchanging network equipment and the described associated device according to the carrying quality of described detected Business Stream.
2. loaded state detection method as claimed in claim 1 is characterized in that, the carrying quality that step a flows by one or several detections in the following manner and described flexible exchanging network equipment associated device corresponding service:
Support the described flexible exchanging network equipment of RTCP Real-time Transport Control Protocol and support the described associated device of RTCP Real-time Transport Control Protocol to detect the carrying quality of described Business Stream by described RTCP Real-time Transport Control Protocol;
Support the described flexible exchanging network equipment of two-way forwarding testing mechanism and support the described associated device of two-way forwarding testing mechanism to detect the carrying quality of described Business Stream by described two-way forwarding testing mechanism;
Described flexible exchanging network equipment is monitored the carrying quality of the described Business Stream of described Business Stream state-detection by the local terminal folk prescription.
3. loaded state detection method as claimed in claim 2 is characterized in that, the carrying quality of described Business Stream obtains by the packet loss of the packet of statistics shake of described Business Stream and Business Stream.
4. a loaded state checkout gear that adopts above-mentioned loaded state detection method is characterized in that,
Comprise:
Detecting unit is used to detect the carrying quality with the pairing Business Stream of this device place equipment associated device;
Identifying unit is used for according to this device place equipment of carrying quality judging of the detected Business Stream of described detecting unit and the state of the bearing resource between the described associated device.
5. a distribution method for beared resource is characterized in that, comprises step:
The state information of bearing resource between each media gateway of media gateway controlling device statistics in a, the described flexible exchanging network and each the service access equipment;
B, described media gateway controlling equipment are that service call distributes bearing resource according to the state information of described bearing resource.
6. distribution method for beared resource as claimed in claim 5 is characterized in that step a specifically comprises:
A1, the loaded state checkout gear that is used to detect the bearing resource state information detect the state information of bearing resource between described each media gateway and each the service access equipment;
A2, described loaded state checkout gear are given described media gateway controlling equipment with described bearing resource state information notification.
7. distribution method for beared resource as claimed in claim 5 is characterized in that, comprises step before the step a2:
The state information that described media gateway controlling equipment is inquired about described bearing resource to described loaded state checkout gear.
8. as claim 6 or 7 described distribution method for beared resource, it is characterized in that described loaded state checkout gear is built in the described media gateway device;
Described media gateway device adopts the agreement of described media gateway device and described media gateway controlling communication between devices or signaling channel to give described media gateway device with the status information reporting of the detected bearing resource of described loaded state checkout gear.
9. as claim 6 or 7 described distribution method for beared resource, it is characterized in that described loaded state checkout gear is built in the described service access equipment;
Described service access equipment adopts the signaling channel of described service access equipment and described media gateway controlling communication between devices to give described media gateway device with the status information reporting of the detected bearing resource of described loaded state checkout gear.
10. distribution method for beared resource as claimed in claim 8 is characterized in that, the agreement of described media gateway device and described media gateway controlling communication between devices comprises that MGCP H.248; The signaling channel of described media gateway device and described media gateway controlling communication between devices comprises the signaling transportation protocol SIGTRAN signaling channel of setting up by between built-in SGW equipment of described media gateway device and the media gateway controlling equipment.
11. distribution method for beared resource as claimed in claim 9, it is characterized in that the signaling channel of described service access equipment and described media gateway controlling communication between devices is the signaling transportation protocol SIGTRAN signaling channel of described service access equipment by setting up between SGW equipment and the media gateway controlling equipment.
12. a bearing resource distribution system is characterized in that, comprising:
The loaded state checkout gear is used for detecting the state of bearing resource between described flexible exchanging network service access equipment and the media gateway device;
The resource control appliance is used for obtaining from described loaded state checkout gear the state information of described bearing resource, and is that service call distributes bearing resource according to the state information of the described bearing resource that obtains.
13. bearing resource distribution system as claimed in claim 12, it is characterized in that described resource control appliance from the process that described loaded state checkout gear obtains the state information of described bearing resource is: described loaded state checkout gear is initiatively reported the state information of described bearing resource to the resource control appliance.
14. bearing resource distribution system as claimed in claim 12 is characterized in that, described resource control appliance from the process that described loaded state checkout gear obtains the state information of described bearing resource is:
Described resource control appliance is initiated the request of the described bearing resource state information of inquiry to described loaded state checkout gear;
Described loaded state checkout gear feeds back the state information of the bearing resource of described inquiry to described resource control appliance.
15. bearing resource distribution system as claimed in claim 12, it is characterized in that, described resource control appliance is the media gateway controlling equipment in the described flexible exchanging network, and described loaded state checkout gear is built in the media gateway device in the described flexible exchanging network;
Described media gateway device adopts the agreement of described media gateway device and described media gateway controlling communication between devices or signaling channel to give described media gateway device with described bearing resource status information reporting.
16. bearing resource distribution system as claimed in claim 12, it is characterized in that, described resource control appliance is the media gateway controlling equipment in the described flexible exchanging network, and described loaded state checkout gear is built in the service access equipment in the described flexible exchanging network;
Described service access equipment adopts the signaling channel of described service access equipment and described media gateway controlling communication between devices to give described media gateway device with described bearing resource status information reporting.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610124231.9A CN101005410A (en) | 2006-12-15 | 2006-12-15 | Detecting method and device for loading state and method and system for distributing loading resource |
| PCT/CN2007/071222 WO2008071126A1 (en) | 2006-12-15 | 2007-12-12 | Detecting method and device of loadbearing status as well as distributing method and system of loadbearing resource |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610124231.9A CN101005410A (en) | 2006-12-15 | 2006-12-15 | Detecting method and device for loading state and method and system for distributing loading resource |
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| CN101005410A true CN101005410A (en) | 2007-07-25 |
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| CN200610124231.9A Pending CN101005410A (en) | 2006-12-15 | 2006-12-15 | Detecting method and device for loading state and method and system for distributing loading resource |
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| CN (1) | CN101005410A (en) |
| WO (1) | WO2008071126A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2008071126A1 (en) * | 2006-12-15 | 2008-06-19 | Huawei Technologies Co., Ltd. | Detecting method and device of loadbearing status as well as distributing method and system of loadbearing resource |
| CN101247288B (en) * | 2008-03-14 | 2010-08-18 | 华为技术有限公司 | Periodic line quality detecting method and device |
| CN101426060B (en) * | 2008-12-01 | 2011-05-11 | 华为技术有限公司 | Method, soft switching device and system for double home soft switch |
| CN101127742B (en) * | 2007-09-24 | 2011-07-13 | 中兴通讯股份有限公司 | A method for access gateway to network phone sources |
| CN104135771A (en) * | 2007-11-30 | 2014-11-05 | 阿尔卡特朗讯 | Method for performing resource allocation, base station and wireless communication network |
| CN104221340A (en) * | 2014-04-15 | 2014-12-17 | 华为技术有限公司 | Resource distributing method and device |
| CN105993190A (en) * | 2015-01-20 | 2016-10-05 | 华为技术有限公司 | Bearer resource processing method and apparatus |
| CN109151236A (en) * | 2018-09-03 | 2019-01-04 | 中国联合网络通信集团有限公司 | Calling route selection method and call route selecting system |
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Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1798423A (en) * | 2004-12-21 | 2006-07-05 | 中兴通讯股份有限公司 | Method for selecting routes in mobile communication network separated between load bearing and controlling functions |
| CN100372320C (en) * | 2006-01-11 | 2008-02-27 | 华为技术有限公司 | Method and system for detecting service quality in next generation network |
| CN101005410A (en) * | 2006-12-15 | 2007-07-25 | 华为技术有限公司 | Detecting method and device for loading state and method and system for distributing loading resource |
-
2006
- 2006-12-15 CN CN200610124231.9A patent/CN101005410A/en active Pending
-
2007
- 2007-12-12 WO PCT/CN2007/071222 patent/WO2008071126A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2008071126A1 (en) * | 2006-12-15 | 2008-06-19 | Huawei Technologies Co., Ltd. | Detecting method and device of loadbearing status as well as distributing method and system of loadbearing resource |
| CN101127742B (en) * | 2007-09-24 | 2011-07-13 | 中兴通讯股份有限公司 | A method for access gateway to network phone sources |
| CN104135771A (en) * | 2007-11-30 | 2014-11-05 | 阿尔卡特朗讯 | Method for performing resource allocation, base station and wireless communication network |
| CN101247288B (en) * | 2008-03-14 | 2010-08-18 | 华为技术有限公司 | Periodic line quality detecting method and device |
| CN101426060B (en) * | 2008-12-01 | 2011-05-11 | 华为技术有限公司 | Method, soft switching device and system for double home soft switch |
| CN104221340A (en) * | 2014-04-15 | 2014-12-17 | 华为技术有限公司 | Resource distributing method and device |
| WO2015157913A1 (en) * | 2014-04-15 | 2015-10-22 | 华为技术有限公司 | Method and device for resource allocation |
| CN105993190A (en) * | 2015-01-20 | 2016-10-05 | 华为技术有限公司 | Bearer resource processing method and apparatus |
| CN109150659A (en) * | 2018-08-16 | 2019-01-04 | 新华三技术有限公司 | A kind of processor and BFD message transmitting method |
| CN109151236A (en) * | 2018-09-03 | 2019-01-04 | 中国联合网络通信集团有限公司 | Calling route selection method and call route selecting system |
| CN109151236B (en) * | 2018-09-03 | 2021-02-02 | 中国联合网络通信集团有限公司 | Call route selection method and call route selection system |
Also Published As
| Publication number | Publication date |
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| WO2008071126A1 (en) | 2008-06-19 |
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