CN101835203B - Method and system for processing multi-frame media message by using media gateway - Google Patents
Method and system for processing multi-frame media message by using media gateway Download PDFInfo
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Abstract
The invention provides a method for processing a multi-frame media message by using a media gateway. The method comprises the following steps of: when base stations related with a call send the multi-frame media message to the media gateway, controlling the packet frame number of the multi-frame media message of the base stations not to exceed the maximum packet frame number of the base stations supported by a base station receiving side; performing packet according to the frame number of the current received multi-frame media message through the media gateway; and furthermore, setting a default packet frame number of the media gateway as 1, and ensuring sending a single-frame media message when the media gateway does not receive the multi-frame media message sent by the base stations. By the method, the media gateway can change the packet frame number to adapt to the multi-frame supporting capability of the base stations so as to reduce the problem of voice quality because multi-frame supporting capability negotiation is not performed.
Description
Technical field
The present invention relates to moving communicating field, particularly relate to multiframe group packet processing method and the system of multi-frame media message in CDMA2000 system.
Background technology
Along with the continuous maturation of technology, cost constantly reduce, the market demand is day by day vigorous, each operator accelerates the migration paces of next generation network, bearing mode IPization has become the main trend of network Development, has adopted in IMS (IP Multimedia System) business bureau building 3G (G mobile communication) and future at present and maybe will adopt IP bearing mode.
In the cdma 2000 system, when medium surface is transmitted by media message (as multiframe live transmission protocol message, i.e. RTP message), a message can comprise multiple speech frame, does like this and can save the network bandwidth, reduces network congestion.
Multiple base station may be related in calling procedure, and the multiframe tenability of each base station, the maximum group of bag frame number namely can supported may be different.Maximum group of base station bag frame number is divided into receiver side maximum group of bag frame number and transmitter side maximum group of bag frame number.Maximum group of bag frame number and transmitter side maximum group of bag frame number that receiver side is supported may be different, and in traditional treatment method, chain of command is held consultation according to the receiver side of each base station maximum group of bag frame number, then notifies that the group bag frame number of transmitter side is determined in each base station.Media gateway also has maximum group of bag frame number, the maximum group of bag frame number that the maximum group of bag frame number that general media gateway can be supported is supported higher than base station.
In traditional processing method, core network control surface carries out the negotiation of multiframe tenability.Namely after setup requests, the network element of core network control surface, as moving exchanging center MSC, compares the receiver side maximum group of bag frame number of each base station participating in calling, choose wherein minimum group bag frame number as unified group bag frame number, and be handed down to base station and media gateway MGW.The group bag frame number that chain of command network element issues by base station is as transmitter side maximum group of bag frame number.
Consulted by such multiframe tenability, ensure that the group bag frame number in calling is no more than the maximum multiframe tenability of any one base station, ensure that the quality of voice.
When there is change in call model, such as user switches, and transfers to another base station range from a base station range, or when base station multiframe tenability changes, core network control surface needs again to consult multiframe tenability, otherwise can cause voice quality problem.
But in actual applications, in some cases, core network control surface cannot be held consultation to multiframe tenability, at this moment core net also outwards sends according to multiframe group bag frame number before.Such two ends support that the ability of multiframe is different, will cause voice quality problem.
As shown in Figure 1, for call model change time, MSC does not carry out again multiframe tenability to be consulted and the example that leads to errors.
When calling starts, calling terminal 1 time in base station, terminal called 2 times in base station.Receiver side maximum group of bag frame number of base station 1 is 2, and receiver side maximum group of bag frame number of base station 2 is 3, and according to traditional method, MSC holds consultation, and chooses minimum group bag frame number as unified group bag frame number, namely 2.Group bag frame number 2 is handed down to base station 1, base station 2 and MGW by MSC.Base station 1, base station 2 and MGW send multi-frame media message using 2 as group bag frame number.
Because calling subscriber switches, be switched to base station 3 from base station 1, and the maximum group of bag frame number in base station 1 and the receiver side that base station 3 is supported is different, 1 frame is only supported in base station 3.If MSC does not do the negotiation of multiframe tenability in time after switching, do not notify that the group bag frame number sending message is reduced to by media gateway and adapt to base station 3, the receiving ability of group bag frame number beyond base station 3 of the multi-frame media message sent can be caused, thus cause voice quality problem.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of processing method of multi-frame media message, when call model change or base station multiframe tenability change, the media gateway of the inventive method is used can more to reorganize bag frame number adaptively, to adapt to described change, reduce voice quality problem.
The method of the processing multi-frame media message by using media gateway of the inventive method is:
Base station is when sending multi-frame media message to media gateway, and the group bag frame number controlling described multi-frame media message is no more than maximum group of the base station bag frame number of described base station receiver side support;
Described media gateway packages according to the frame number of the multi-frame media message be currently received.
Preferably, described media gateway packages according to the frame number of the multi-frame media message be currently received and specifically refers to: described media gateway packages according to less frame number in both in the frame number of the multi-frame media message be currently received and described media gateway maximum group of bag frame number.
Preferably, when media gateway does not receive multi-frame media message, described media gateway packages according to default set bag frame number 1.
Preferably, when described media gateway receives the multi-frame media message of described base station transmission, described media gateway, according to the payload content of described multi-frame media message, parses the group bag frame number of described multi-frame media message, and is recorded as real-time frame number; At this moment, described media gateway packages according to the frame number of the multi-frame media message be currently received and specifically refers to: described media gateway packages according to described real-time frame number.
Preferably described media gateway packages according to the frame number of the multi-frame media message be currently received and specifically refers to: the more described real-time frame number of described media gateway and described media gateway maximum group of bag frame number, select less group bag frame number, and the group bag frame number less according to this packages.
Preferably, the multi-frame media message of group bag is carried out Ethernet encapsulation by described media gateway, sends to described base station.
The frame number that side of the present invention makes base station control the multi-frame media message sent is no more than maximum group of bag frame number of this base station, and gateway resolves also records the frame number of the multi-frame media message be currently received as real-time frame number, to package transmission according to real-time frame number, or to package transmission according to smaller value in real-time frame number and media gateway maximum group of bag frame number.By such method, media gateway more can reorganize bag frame number to adapt to the multiframe tenability of base station, thus decreases the problem that voice quality occurs owing to not carrying out the negotiation of multiframe tenability.
Present invention also offers a kind for the treatment of system of multiframe message, when call model change or base station multiframe tenability change, use the media gateway of present system can more reorganize bag frame number adaptively, to adapt to described change, reduce voice quality problem.
The system of processing multi-frame media message by using media gateway of the present invention comprises:
Base station frame number control unit, is positioned at base station, and described base station is when sending multi-frame media message to media gateway, and the group bag frame number that described frame number control unit controls described multi-frame media message is no more than maximum group of the base station bag frame number that described base station receiver side is supported;
Media gateway message group package unit, is positioned at media gateway, and described media gateway message group package unit packages according to the frame number of the multi-frame media message be currently received.
Preferably, described media gateway message group package unit packages according to the frame number of the multi-frame media message be currently received and specifically refers to: described media gateway message group package unit packages according to less frame number in both in the multi-frame media message be currently received and media gateway maximum group of bag frame number.
Preferably, when media gateway message group package unit does not receive multi-frame media message, media gateway message group package unit packages according to default set bag frame number 1.
Preferably, described system also comprises:
Media gateway frame number control unit, be positioned at media gateway, when described media gateway receives the multi-frame media message of described base station transmission, described media gateway frame number control unit is according to the payload content of described multi-frame media message, resolve the group bag frame number of described multi-frame media message, and be recorded as real-time frame number;
Preferably, described media gateway message group package unit packages according to the frame number of the multi-frame media message be currently received and specifically refers to: described media gateway transmitting element packages according to the described real-time frame number of described media gateway frame number control unit record.
Preferably, described system also comprises:
Media gateway frame number comparing unit, is positioned at media gateway, for comparing described real-time frame number and described media gateway maximum group of bag frame number of media gateway frame number control unit record, records less frame number;
Preferably, described media gateway message group package unit packages according to the frame number of the multi-frame media message be currently received and specifically refers to: described media gateway message group package unit less frame number according to described media gateway frame number comparing unit record packages.
Preferably, described system also comprises:
Media gateway packet sending unit, is positioned at media gateway, for the multi-frame media message of described media gateway message group package unit group bag is carried out Ethernet encapsulation, sends to described base station.
Present system, mainly through base station frame number control unit and media gateway message group package unit, realizes the step of the inventive method.By such system, media gateway can carry out the group bag frame number of the message that self adaptation change needs send according to the frame number of the message received, thus decreases the problem that voice quality occurs owing to not carrying out the negotiation of multiframe tenability.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that in prior art, call model changes.
Fig. 2 is main method flow chart of the present invention.
Fig. 3 is the flow chart of the media gateway multi-frame media message processing method of the inventive method.
Fig. 4 is an embodiment of the inventive method.
Fig. 5 is system module schematic diagram of the present invention.
Embodiment
First the present invention is summarized.
The flow chart of main method of the present invention as shown in Figure 2.Mainly comprise two steps.Step 201, has rate-determining steps in a base station, and namely base station is sending multi-frame media message to media gateway, and during as multiframe RTP message, the frame number controlling this multi-frame media message is no more than maximum group of bag frame number of this base station receiver side support.Such as, the maximum frame number of this base station receiver side support is 6 frames, then the multiframe message frame number that this base station sends to media gateway will control within 6 frames.
Step 202, has group bag step in the media gateway of core net, and the frame number of multi-frame media message that namely media gateway is sent according to the base station that described media gateway is currently received packages.Wherein, media gateway maximum group of bag frame number refers to the maximum frame number of media gateway manageable multiframe message.Such as, the message frame number that media gateway receives is 5 frames, then the multiframe message frame number that media gateway sends to base station is 5 frames.
By these two steps, when then can make the multiframe tenability change in base station, do not need core network control surface such as MSC to hold consultation, but by media gateway according to the group bag frame number receiving message from base station, adaptive updates send the group bag frame number of multi-frame media message.The multi-frame media message that media gateway sends can not exceed the maximum group of bag frame number that this base station is supported.The frame number of such multi-frame media message can not exceed the multiframe tenability of base station or media gateway, achieves adaptive control, does not need the negotiation of chain of command.
Preferably, in both in the maximum group of bag frame number that the frame number of the multi-frame media message that the base station that media gateway can also be currently received according to described media gateway is sent and media gateway can be supported, less frame number packages.Such as, the message frame number that media gateway receives is 10 frames, and media gateway supports that maximum group of bag frame number is 6 frames, then media gateway packages according to 6 frames.Generally, maximum group of bag frame number of core net media gateway support is greater than the maximum frame number receiving message.But by such comparison step, can when maximum group of bag frame number of media gateway support be less than receive message maximum frame number, guarantee group report frame number is no more than media gateway tenability.
Preferably, the default set bag frame number of the transmission group bag of media gateway is set to 1 by the present invention, show when switch or the event such as multiframe tenability change of base station time, if new base station never sends bag to media gateway, then media gateway cannot learn new group bag frame number.At this moment media gateway sends media message according to default set bag frame number 1 frame, and namely single frames sends.
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
It is preferred processing method in the inventive method shown in Fig. 3.
Step 301, arranges the group bag frame number of the transmission multi-frame media message of all uses base station of the present invention, makes this base station when sending multi-frame media message to media gateway, and the frame number of message is no more than maximum group of bag frame number of this base station receiver side support.
Step 302, after call setup, after base station receives the upstream data from the terminal of eating dishes without rice or wine, when carrying out data encapsulation, the group bag frame number arranged according to step 301 encapsulates, and afterwards message is sent to media gateway.
Step 303, when media gateway receives the multi-frame media message sent base station in step 302, according to the payload content of described multi-frame media message, parses the group bag frame number of described multi-frame media message, and is recorded as real-time frame number.
Step 304, the real-time frame number recorded in step 303 and this media gateway maximum group of bag frame number compare by media gateway, select less group bag frame number.
Step 305, when media gateway needs to send multi-frame media message to this base station, media gateway packages according to the less group bag frame number obtained in step 304.
Step 306, media gateway by step 305 organize bag multi-frame media message carry out Ethernet encapsulation, send to this base station.
If generation step 307, before picture media gateway does not send multi-frame media message in base station, media gateway just needs to send media message to this base station, and at this moment media gateway sends media message according to default set bag frame number 1, i.e. single frames media message.
Fig. 4 is an embodiment of the inventive method application.
When calling starts, calling terminal 1 time in base station, terminal called 2 times in base station.Receiver side maximum group of bag frame number of base station 1 is 3, and receiver side maximum group of bag frame number of base station 2 is 4, and according to the inventive method, the frame number of the multi-frame media message that base station 1 and base station 2 send is no more than maximum group of bag frame number of this base station receiver side support.Namely base station 1 sends message group package frame number is 3, and the group bag frame number that base station 2 sends is 4.
When the multi-frame media message that the base station 1 that media gateway MGW receives calling subscriber place is sent, according to the payload content of described multi-frame media message, parse the group bag frame number of described multi-frame media message, and to be recorded as real-time frame number be 3 frames.Media gateway packages with 3 frames when sending multi-frame media message to base station 1.
Similarly, the base station 2 that MGW receives called subscriber place send multi-frame media message time, according to the payload content of described multi-frame media message, parse the group bag frame number of described multi-frame media message, and to be recorded as real-time frame number be 4 frames.Media gateway packages with 4 frames when sending multi-frame media message to base station 1.
If at this moment there occurs switching, calling subscriber is from base station 1 to base station 3, and the maximum group of bag frame number that base station 3 is supported is 2, then, after MGW learns maximum group of bag frame number of base station 3, package when sending multi-frame media message to base station 3 with 2 frames.If base station 3 does not send message to MGW always, MGW study less than maximum group of bag frame number of base station 3, then according to default set bag frame number group bag, sends single frames media message to base station 3.
By such method, do not need MSC to hold consultation, the adjustment of the group bag frame number of multi-frame media message can be realized adaptively.
Present invention also offers the treatment system of a kind of multiframe message employing the inventive method, as shown in Figure 5.This system mainly comprises:
Base station frame number control unit, be positioned at base station, described base station is sending multi-frame media message to media gateway, and during as multiframe RTP message, the frame number that described frame number control unit controls this multi-frame media message is no more than maximum group of the base station bag frame number that described base station receiver side is supported;
Media gateway message group package unit, is positioned at media gateway, and described media gateway message group package unit packages according to the frame number of the multi-frame media message be currently received.
In addition preferably, native system also comprises:
Media gateway frame number control unit, be positioned at media gateway, when described media gateway receives the multi-frame media message of described base station transmission, described media gateway frame number control unit is according to the payload content of described multi-frame media message, resolve the group bag frame number of described multi-frame media message, and be recorded as real-time frame number;
Media gateway frame number comparing unit, is positioned at media gateway, for comparing described real-time frame number and described media gateway maximum group of bag frame number of media gateway frame number control unit record, records less frame number;
Media gateway packet sending unit, is positioned at media gateway, for the multi-frame media message of described media gateway message group package unit group bag is carried out Ethernet encapsulation, sends to described base station.
The default set bag frame number of media gateway message group package unit group bag is set to 1 by the present invention, show when switch or the event such as multiframe tenability change of base station time, if new base station never sends bag to media gateway, then media gateway cannot learn new group bag frame number.At this moment media gateway sends media message according to default set bag frame number 1 frame, and namely single frames sends.
The detailed process of this System Operation is:
Base station frame number control unit control group bag frame number is no more than the maximum frame number that base station is supported.
After media gateway receives the multi-frame media message sent base station, message is delivered to media gateway frame number control unit and resolve, obtain real-time frame number.Media gateway group bag unit packages according to this real-time frame number.
Or preferably, after media gateway obtains real-time frame number, maximum to real-time frame number and media gateway group of bag frame number compares by media gateway frame number comparing unit, obtains less frame number.The frame number that media gateway group bag unit is less according to this packages.Message after group bag is sent to base station by last media gateway packet sending unit.
By such system, can make when call model change or base station multiframe tenability change time, core network control surface such as MSC is not needed to hold consultation, but by media gateway according to the group bag frame number receiving message from base station, adaptive updates sends the group bag frame number of multi-frame media message.The multi-frame media message that media gateway sends can not exceed the maximum group of bag frame number that this base station is supported.The frame number of such multi-frame media message can not exceed the multiframe tenability of base station or media gateway, achieves adaptive control, does not need the negotiation of chain of command.
It should be noted that and the foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a method for processing multi-frame media message by using media gateway, is characterized in that,
Base station is when sending multi-frame media message to media gateway, and the group bag frame number controlling described multi-frame media message is no more than maximum group of the base station bag frame number of described base station receiver side support;
Described media gateway packages according to the frame number of the multi-frame media message be currently received;
When media gateway does not receive multi-frame media message, described media gateway packages according to default set bag frame number 1;
When described media gateway receives the multi-frame media message of described base station transmission, described media gateway, according to the payload content of described multi-frame media message, parses the group bag frame number of described multi-frame media message, and is recorded as real-time frame number;
Described media gateway packages according to the frame number of the multi-frame media message be currently received and specifically refers to: described media gateway packages according to described real-time frame number;
Described media gateway packages according to the frame number of the multi-frame media message be currently received and specifically refers to: described media gateway packages according to less frame number in both in the frame number of the multi-frame media message be currently received and described media gateway maximum group of bag frame number.
2. the method for processing multi-frame media message by using media gateway as claimed in claim 1, is characterized in that, described media gateway packages according to the frame number of the multi-frame media message be currently received and specifically refers to:
The more described real-time frame number of described media gateway and described media gateway maximum group of bag frame number, select less group bag frame number, records less group bag frame number, and the group bag frame number less according to this packages.
3. the method for the processing multi-frame media message by using media gateway according to any one of claim 1 or 2, is characterized in that,
The multi-frame media message of group bag is carried out Ethernet encapsulation by described media gateway, sends to described base station.
4. a system for processing multi-frame media message by using media gateway, is characterized in that, comprising:
Base station frame number control unit, is positioned at base station, and described base station is when sending multi-frame media message to media gateway, and the group bag frame number that described frame number control unit controls described multi-frame media message is no more than maximum group of the base station bag frame number that described base station receiver side is supported;
Media gateway message group package unit, is positioned at media gateway, and described media gateway message group package unit packages according to the frame number of the multi-frame media message be currently received;
When media gateway message group package unit does not receive multi-frame media message, media gateway message group package unit packages according to default set bag frame number 1;
Described system also comprises:
Media gateway frame number control unit, be positioned at media gateway, when described media gateway receives the multi-frame media message of described base station transmission, described media gateway frame number control unit is according to the payload content of described multi-frame media message, resolve the group bag frame number of described multi-frame media message, and be recorded as real-time frame number;
Described media gateway message group package unit packages according to the frame number of the multi-frame media message be currently received and specifically refers to: described media gateway transmitting element packages according to the described real-time frame number of described media gateway frame number control unit record;
Described media gateway message group package unit packages according to the frame number of the multi-frame media message be currently received and specifically refers to:
Described media gateway message group package unit according in the multi-frame media message be currently received and media gateway maximum group of bag frame number in the two less frame number package.
5. the system of processing multi-frame media message by using media gateway as claimed in claim 4, it is characterized in that, described system also comprises:
Media gateway frame number comparing unit, is positioned at media gateway, for comparing described real-time frame number and described media gateway maximum group of bag frame number of media gateway frame number control unit record, records less frame number;
Described media gateway message group package unit packages according to the frame number of the multi-frame media message be currently received and specifically refers to:
Described media gateway message group package unit less frame number according to described media gateway frame number comparing unit record packages.
6. the system of the processing multi-frame media message by using media gateway according to any one of claim 4 or 5, is characterized in that, described system also comprises:
Media gateway packet sending unit, is positioned at media gateway, for the multi-frame media message of described media gateway message group package unit group bag is carried out Ethernet encapsulation, sends to described base station.
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| CN101083799A (en) * | 2007-06-22 | 2007-12-05 | 中兴通讯股份有限公司 | Calling method for telecom network |
| CN101640879A (en) * | 2008-08-01 | 2010-02-03 | 华为技术有限公司 | Method, device and system for intersystem switching capacity information acquisition and system access |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101083799A (en) * | 2007-06-22 | 2007-12-05 | 中兴通讯股份有限公司 | Calling method for telecom network |
| CN101640879A (en) * | 2008-08-01 | 2010-02-03 | 华为技术有限公司 | Method, device and system for intersystem switching capacity information acquisition and system access |
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Effective date of registration: 20201109 Address after: Fengli town Xinjian West Road, Rudong County, Nantong City, Jiangsu Province 226400 Patentee after: Rudong Wenyuan investment and Development Co., Ltd Address before: 518057 Nanshan District science and Technology Industrial Park, Guangdong high tech Industrial Park, ZTE building Patentee before: ZTE Corp. |
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