CN101742012A - Method and equipment for dynamically selecting service carrying networks to improve speech quality - Google Patents
Method and equipment for dynamically selecting service carrying networks to improve speech quality Download PDFInfo
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- CN101742012A CN101742012A CN200910225429A CN200910225429A CN101742012A CN 101742012 A CN101742012 A CN 101742012A CN 200910225429 A CN200910225429 A CN 200910225429A CN 200910225429 A CN200910225429 A CN 200910225429A CN 101742012 A CN101742012 A CN 101742012A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/17—Selecting a data network PoA [Point of Attachment]
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Abstract
The invention discloses a method and equipment for dynamically selecting service carrying networks to improve speech quality. The method comprises the following steps: presetting conditions for optimizing and switching the service carrying network; carrying out real-time monitoring on service carrying quality of the optimized service carrying network; receiving a signaling message from a user side by a media gateway (MG); and when judging that the signaling message is the first message in a call, judging whether the conditions for switching the service carrying network are satisfied according to the monitored service carrying quality of the optimized service carrying network and selecting a carrying network to transmit service relevant to the signaling message according to the judgment. The method and equipment dynamically select the service carrying network through monitoring the state of the service carrying network instead of singly using an IP (internet protocol) network or a PSTN (public switched telephone network) network, thereby fulfilling the aim of improving service quality and success rate.
Description
Technical field
The present invention relates to (Next Generation Network at NGN, next generation network) (the Media Gateway of the MG under the framework, media gateway) on the equipment, by specified conditions, for calling out Dynamic Selection service bearer network to improve the method and apparatus of voice quality.
Background technology
PSTN (Public Switched Telephone Network, public switch telephone network) is based on TDM (Time Division Multiplexing, time division multiplexing), is information exchange system with the circuit switching, is the telecommunications network of main business with the telephone service.PSTN also provides fax to wait the simple data service of part simultaneously.
NGN is to be core with SS (Soft Switch, soft switch), and the network architecture based on the comprehensive opening of group technology that comprises voice, data, video and multimedia service can be provided.On meaning, NGN is PSTN speech network and the product that merges based on the packet network of IP (Internet Protocol, Internet protocol), and it makes that integrated services such as voice, video, data become possibility on new generation network.NGN can provide multiple services such as comprising speech, data, multimedia on present network foundation, can also introduce local local telephone network to the low rate IP phone that is used for toll telephone now, reduces the cost and price of local call expense greatly.
Under the NGN framework, MG receives that the signaling from user side is to transmit by IP network, if but run into network storm, network congestion or network equipment failure, will cause the decline and even the call interruption of call quality.The means that existing NGN framework solves this type of problem down comprise SS disaster tolerance pattern, ISUP (Integated Services Digital Network User Part, ISUP) certainly the exchange etc., but these means all are to be based upon under the prerequisite that signaling is interrupted between SS and the MG, if it is congested very big in the IP network, seriously influenced voice quality and called out, but signaling do not interrupt, above-mentioned means can not play effect.Although NGN is commercial on a large scale simultaneously, in the existing network, also have a large amount of PSTN equipment, these existing equipments of better utilization are to need to consider.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of Dynamic Selection service bearer network to improve the method and apparatus of voice quality, the existing NGN gateway model of expansion, for from the signaling of user side except in IP network, transmitting, can also pass through the PSTN forwarded.
In order to solve the problems of the technologies described above, the invention provides the method that a kind of Dynamic Selection service bearer network improves voice quality, comprising:
The condition of default preferred service bearer network and service switchover bearer network;
Monitor described preferred service bearer network service bearer quality in real time;
Receive signaling message on the media gateway (MG) from user side;
When determining described signaling message is first message in the calling, then according to the preferred service bearer network service bearer quality that monitors, judge whether to satisfy the condition of service switchover bearer network, according to judged result, select a bearer network to be used to transmit the business relevant with described signaling message.
Furthermore, the step of the condition of described default preferred service bearer network and service switchover bearer network comprises:
In Internet protocol (IP) network and public switch telephone network (PSTN) network, default preferred service bearer network;
The concrete parameter of configuration service carrying quality is preset and is determined satisfying under the condition of this concrete parameter, and the network of bearer service switches to the low priority network from preferred service bearer network.
Furthermore, described method also comprises:
When determining described signaling message is not first message in the calling, and the service bearer network uses the network that chooses according to first message in calling out, and no longer reselects.
Furthermore, the described condition that judges whether to satisfy the service switchover bearer network according to judged result, selects a bearer network to be used to transmit the business relevant with described signaling message, comprising:
When judged result is the condition that current network service bearer quality does not reach described service switchover bearer network, then select described default preferred service bearer network to be used to transmit the business relevant with described signaling message.
Furthermore, described according to judged result, the step of selecting a bearer network to be used to transmit the business relevant with described signaling message also comprises:
When judged result is the condition that current network service bearer quality has reached the service switchover bearer network, then select the low priority network to be used to transmit the business relevant with described signaling message.
In order to solve the problems of the technologies described above, the present invention also provides a kind of Dynamic Selection service bearer network to improve the equipment of voice quality, is arranged at media gateway, comprising:
Configuration module is used for the condition of default preferred service bearer network and service switchover bearer network;
Network monitoring module is used for monitoring in real time described preferred service bearer network service bearer quality;
Network Interface Module is used to receive the signaling message from user side;
Signalling module is used for sending trigger message when judging that described signaling message is first message of a calling;
Message control module, be used for after receiving described trigger message,, judging whether to satisfy the condition of service switchover bearer network according to the preferred service bearer network service bearer quality that monitors, according to judged result, select a bearer network to be used to transmit the business relevant with described signaling message.
Furthermore, described configuration module is used at Internet protocol (IP) network and public switch telephone network (PSTN) network, default preferred service bearer network; The concrete parameter of configuration service carrying quality is preset and is determined satisfying under the condition of this concrete parameter, and the network of bearer service switches to the low priority network from preferred service bearer network.
Furthermore, described signalling module is used for when determining described signaling message when not being first message of a calling, and the service bearer network uses the network that chooses according to first message in calling out, and no longer reselects.
Furthermore, described message control module, being used for working as judged result is the condition that current network service bearer quality does not reach described service switchover bearer network, then selects described default preferred service bearer network to be used to transmit the business relevant with described signaling message.
Furthermore, described message control module, being used for working as judged result is the condition that current network service bearer quality has reached the service switchover bearer network, then selects the low priority network to be used to transmit the business relevant with described signaling message.
Compared with prior art, the present invention has expanded MG and has gone up for the signaling transfer capability from user side, by monitoring service bearer network state, dynamically select the service bearer network, rather than single use IP network or PSTN network some networks wherein, thereby reached the purpose that improves quality of service and service success rate.
Description of drawings
Fig. 1 is the method flow diagram that the Dynamic Selection service bearer network of the embodiment of the invention improves voice quality.
Fig. 2 is the reference configuration figure of MG of the present invention.
Fig. 3 improves the method flow diagram of voice quality for the Dynamic Selection service bearer network of application example of the present invention.
Embodiment
Main thought of the present invention is, when handling the message related to calls that inserts, can use the PSTN network to breathe out according to current practical business bearer network situation Dynamic Selection, and still IP network is breathed out, thereby rationally utilizes conventional network equipment, the raising quality of service.
Below in conjunction with the drawings and specific embodiments the present invention is described in more detail.
With reference to shown in Figure 1, improve the method flow diagram of voice quality for Dynamic Selection service bearer network of the present invention.
Utilize the present invention to select the service bearer network, specifically may further comprise the steps:
The condition of default preferred service bearer network of step 1. media gateway and service switchover bearer network;
Step 2. media gateway is the described preferred service bearer network service bearer quality of monitoring in real time;
Receive signaling message on step 3. media gateway (MG), be sent to signalling module by Network Interface Module and handle from user side;
Step 4. signalling module is first message in the calling when determining described signaling message, then obtains preferred service bearer network service bearer quality;
First message in the described calling, as the IAM in the ISUP signaling (initial addressmessage, initial address message) message, the SETUP in the signaling (foundation) message etc. Q.931,
Step 5. judges whether to satisfy the condition of service switchover bearer network according to the preferred service bearer network service bearer quality that monitors, and according to judged result, MG selects a bearer network to be used to transmit the business relevant with described signaling message.
Specifically, in step 1, the condition of default preferred service bearer network of media gateway and service switchover bearer network comprises:
The concrete parameter of step 102. configuration determines that under this condition, the network of bearer service switches to low priority from high-priority network; For example, be provided with that to switch reference conditions be PSQM (PerceptualSpeech Quality Measurement, sound quality standard asserting value) sampling, when PSQM＞1.8, need the service switchover bearer network to the PSTN network.
In the step 3, when receiving a signaling message on the MG, the step that is sent to the signalling module processing by Network Interface Module also comprises:
If this signaling message is not first message in the calling, the service bearer network uses the network that chooses according to first message in calling out so, and no longer reselects; Why stipulate like this, be because handling one calls out and need complete signaling process, and if the signaling message in signaling process sends by different bearer networks, can cause at the terminal note place, imperfect or the sequential entanglement of the signaling message of receiving influences normal call.
In the step 5, the described condition that judges whether to satisfy the service switchover bearer network according to judged result, selects a bearer network to be used to transmit the business relevant with described signaling message, comprising:
It is the condition that current network service bearer quality does not reach described service switchover bearer network that step 501. is worked as judged result, then selects described default preferred service bearer network to be used to transmit the business relevant with described signaling message;
It is the condition that current network service bearer quality has reached the service switchover bearer network that step 502. is worked as judged result, then selects the low priority network to be used to transmit the business relevant with described signaling message.
With reference to shown in Figure 2, be the reference configuration figure of MG of the present invention.
The present invention comprises following functional module:
Configuration module is used for the condition of default preferred service bearer network and service switchover bearer network;
Network monitoring module is used for monitoring in real time described preferred service bearer network service bearer quality;
Network Interface Module is used to receive the signaling message from user side;
Signalling module is used for sending trigger message when judging that described signaling message is first message of a calling;
Message control module, be used for after receiving described trigger message,, judging whether to satisfy the condition of service switchover bearer network according to the preferred service bearer network service bearer quality that monitors, according to judged result, select a bearer network to be used to transmit the business relevant with described signaling message.
In a preferred embodiment of the invention, described configuration module is used at Internet protocol (IP) network and public switch telephone network (PSTN) network, default preferred service bearer network; The concrete parameter of configuration service carrying quality is preset and is determined satisfying under the condition of this concrete parameter, and the network of bearer service switches to the low priority network from preferred service bearer network.
In a preferred embodiment of the invention,
Described signalling module is used for when determining described signaling message when not being first message of a calling, and the service bearer network uses the network that chooses according to first message in calling out, and no longer reselects.
In a preferred embodiment of the invention,
Described message control module, being used for working as judged result is the condition that current network service bearer quality does not reach described service switchover bearer network, then selects described default preferred service bearer network to be used to transmit the business relevant with described signaling message; When judged result is the condition that current network service bearer quality has reached the service switchover bearer network, then select the low priority network to be used to transmit the business relevant with described signaling message.
Below by the example in the concrete application technical solution of the present invention is carried out exemplary illustration.
Fig. 3 is the flow chart of an application example of the present invention, and as shown in the figure, this example comprises following concrete steps:
Step 1. selection of configuration service bearer network desired data.
Receive first signaling message (can be the IAM message of ISUP signaling, also can make the Q.931 SETUP message of signaling) of a new calling on the step 2.MG, Network Interface Module is sent to signalling module with the signaling message of receiving.
Step 3. signalling module is responsible for resolving this signaling message.
Step 4. signalling module obtains the information of current IP network by the network measuring module.
Step 5. signalling module carries out the forwarding of signaling message according to the service bearer condition information of current IP network.
Further, the step of selection of configuration service bearer network desired data comprises:
The preferred service bearer network of step 101. configuration.In this example, disposing preferred service bearer network is IP network.
Further, the signalling module step of being responsible for resolving this signaling message comprises:
This signaling message is first message (as: the IAM message in the ISUP signaling, Q.931 SETUP message in the signaling etc.) in the calling in this example of step 301., then enters step 4, obtains current bearer network condition information;
Further, the signalling module step of carrying out the forwarding of signaling message according to the service bearer information of current IP network comprises:
If step 501. is known PSQM＜1.8 from the network measuring module, signalling module will send this call signaling by corresponding adapting protocol in the IP network (as: M3UA, IUA etc.) by IP network;
If step 502. is known PSQM＞1.8 from the network measuring module, signalling module is delivered to message control module with call signaling.Message control module is analyzed the number in the service message, carries out number analysis, selects the purpose office direction of signaling message, after repacking, through the arrowband signaling process, this call signaling is sent by the PSTN network.
Certainly; the present invention can have various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1. the method for a Dynamic Selection service bearer network raising voice quality is characterized in that, comprising:
The condition of default preferred service bearer network and service switchover bearer network;
Monitor described preferred service bearer network service bearer quality in real time;
Receive signaling message on the media gateway (MG) from user side;
When determining described signaling message is first message in the calling, then according to the preferred service bearer network service bearer quality that monitors, judge whether to satisfy the condition of service switchover bearer network, according to judged result, select a bearer network to be used to transmit the business relevant with described signaling message.
2. the method for claim 1 is characterized in that, the step of the condition of described default preferred service bearer network and service switchover bearer network comprises:
In Internet protocol (IP) network and public switch telephone network (PSTN) network, default preferred service bearer network;
The concrete parameter of configuration service carrying quality is preset and is determined satisfying under the condition of this concrete parameter, and the network of bearer service switches to the low priority network from preferred service bearer network.
3. the method for claim 1 is characterized in that, also comprises:
When determining described signaling message is not first message in the calling, and the service bearer network uses the network that chooses according to first message in calling out, and no longer reselects.
4. the method for claim 1 is characterized in that, the described condition that judges whether to satisfy the service switchover bearer network according to judged result, selects a bearer network to be used to transmit the business relevant with described signaling message, comprising:
When judged result is the condition that current network service bearer quality does not reach described service switchover bearer network, then select described default preferred service bearer network to be used to transmit the business relevant with described signaling message.
5. method as claimed in claim 4 is characterized in that, and is described according to judged result, and the step of selecting a bearer network to be used to transmit the business relevant with described signaling message also comprises:
When judged result is the condition that current network service bearer quality has reached the service switchover bearer network, then select the low priority network to be used to transmit the business relevant with described signaling message.
6. the equipment of a Dynamic Selection service bearer network raising voice quality is arranged at media gateway, it is characterized in that, comprising:
Configuration module is used for the condition of default preferred service bearer network and service switchover bearer network;
Network monitoring module is used for monitoring in real time described preferred service bearer network service bearer quality;
Network Interface Module is used to receive the signaling message from user side;
Signalling module is used for sending trigger message when judging that described signaling message is first message of a calling;
Message control module, be used for after receiving described trigger message,, judging whether to satisfy the condition of service switchover bearer network according to the preferred service bearer network service bearer quality that monitors, according to judged result, select a bearer network to be used to transmit the business relevant with described signaling message.
7. equipment as claimed in claim 6 is characterized in that,
Described configuration module is used at Internet protocol (IP) network and public switch telephone network (PSTN) network, default preferred service bearer network; The concrete parameter of configuration service carrying quality is preset and is determined satisfying under the condition of this concrete parameter, and the network of bearer service switches to the low priority network from preferred service bearer network.
8. equipment as claimed in claim 6 is characterized in that,
Described signalling module is used for when determining described signaling message when not being first message of a calling, and the service bearer network uses the network that chooses according to first message in calling out, and no longer reselects.
9. equipment as claimed in claim 6 is characterized in that,
Described message control module, being used for working as judged result is the condition that current network service bearer quality does not reach described service switchover bearer network, then selects described default preferred service bearer network to be used to transmit the business relevant with described signaling message.
10. equipment as claimed in claim 9 is characterized in that,
Described message control module, being used for working as judged result is the condition that current network service bearer quality has reached the service switchover bearer network, then selects the low priority network to be used to transmit the business relevant with described signaling message.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910225429A CN101742012A (en) | 2009-12-10 | 2009-12-10 | Method and equipment for dynamically selecting service carrying networks to improve speech quality |
| PCT/CN2010/077417 WO2011069385A1 (en) | 2009-12-10 | 2010-09-28 | Method and apparatus for dynamically selecting service bearer network |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910225429A CN101742012A (en) | 2009-12-10 | 2009-12-10 | Method and equipment for dynamically selecting service carrying networks to improve speech quality |
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| CN101742012A true CN101742012A (en) | 2010-06-16 |
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| CN200910225429A Pending CN101742012A (en) | 2009-12-10 | 2009-12-10 | Method and equipment for dynamically selecting service carrying networks to improve speech quality |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011069385A1 (en) * | 2009-12-10 | 2011-06-16 | 中兴通讯股份有限公司 | Method and apparatus for dynamically selecting service bearer network |
| CN109479080A (en) * | 2016-07-12 | 2019-03-15 | 三菱电机株式会社 | Communication device |
| CN113242585A (en) * | 2021-06-22 | 2021-08-10 | 展讯通信（上海）有限公司 | Network switching method, device, equipment and medium |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100488289C (en) * | 2006-07-28 | 2009-05-13 | 北京航空航天大学 | Mobile IPv6 dynamic switching control system and method based on network service |
| CN101572665B (en) * | 2009-06-01 | 2011-04-20 | 杭州华三通信技术有限公司 | IPv6 over IPv4 tunnel switching method and device |
| CN101742012A (en) * | 2009-12-10 | 2010-06-16 | 中兴通讯股份有限公司 | Method and equipment for dynamically selecting service carrying networks to improve speech quality |
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2009
- 2009-12-10 CN CN200910225429A patent/CN101742012A/en active Pending
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2010
- 2010-09-28 WO PCT/CN2010/077417 patent/WO2011069385A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011069385A1 (en) * | 2009-12-10 | 2011-06-16 | 中兴通讯股份有限公司 | Method and apparatus for dynamically selecting service bearer network |
| CN109479080A (en) * | 2016-07-12 | 2019-03-15 | 三菱电机株式会社 | Communication device |
| CN113242585A (en) * | 2021-06-22 | 2021-08-10 | 展讯通信（上海）有限公司 | Network switching method, device, equipment and medium |
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| WO2011069385A1 (en) | 2011-06-16 |
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Application publication date: 20100616 |