CN101202743A - IMS terminal, stacking server and method of IMS handling of traffic - Google Patents
IMS terminal, stacking server and method of IMS handling of traffic Download PDFInfo
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- 230000005540 biological transmission Effects 0.000 claims description 23
- 230000011664 signaling Effects 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 9
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- 230000000977 initiatory effect Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 abstract description 6
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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
- H04L65/60—Network streaming of media packets
- H04L65/65—Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]
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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
- H04L65/1016—IP multimedia subsystem [IMS]
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Abstract
The invention discloses an IMS terminal, an overlapping server and an IMS service processing method; wherein, the IMS terminal is interactive with the overlapping server and includes an RTP/RTCP sub-module provided with an IMS service situation monitoring device and an RTSP agent device; wherein, the IMS service situation monitoring device is used for monitoring and judging the situation of the IMS service according to monitoring parameters and informing the service situation to the RTSP agent device. The RTSP device is used for transmitting a request of treating an abnormal situation to an overlapping server by the RTSP when the service situation is abnormal. The invention improves the affective efficiency of the IMS to a terminal, more particularly, the in time response capacity when a wireless communication emergency situation occurs, thus reducing the generating of congestion links and simultaneously the invention is convenient to realize.
Description
Technical field
The present invention relates to the mobile flow medium technology, particularly a kind of IMS terminal, stacking server and IMS method for processing business.
Background technology
The mobile flow medium technology is a kind of of multimedia technology, and it is a focus of mobile value-added service.3GPP has increased IP Multimedia System specially in its R5 standard (IP Multimedia Subsystem IMS), is used for process IP multimedia service and control whole call flow, especially mobile flow medium service.The IMS system provides multimedia service and platform towards the grouped data packet switch for the IP-based mobile network of the next generation.
In the IMS architectural framework, the IMS terminal mainly is meant the portable terminal that possesses the IMS function, and it is bearing the responsibility that final service is realized, also is the primary factor whether IMS can realize business success.
As shown in Figure 1, the IMS terminal is from protocol frame model angle, comprise the application layer module and the Native System Envirnment module that connect by IMS HighLevel APIs, wherein in NativeSystem Envirnment module, be provided with Access Layer storehouse submodule (Access LayerStack) usually, the IP submodule, the UDP submodule, the UDP/TCP submodule, the TCP submodule, the RTP/RTCP submodule, the SIP submodule, the SIMPLE submodule, the HTTP submodule, the DM submodule, the Presence submodule, Group Management submodule, the POC submodule, IM submodule etc., above-mentioned module, annexation between the submodule sees also " the IMS terminal beforehand research of MTTF " (portable terminal technical forum first working group is with regard to beforehand research report 6.1 joints of IMS terminal correlation function), is not described in detail at this.
Operator is in carrying out streaming media service, and the problem of being concerned about most is service quality (QoS), i.e. the index of factors such as bandwidth, the error rate and delay jitter.The QoS problem of Streaming Media has obtained extensive studies and has proposed good solution in cable network, yet in cordless communication network, because certain situations such as user's mobility, transmission channel deterioration have caused the QoS of mobile flow medium to guarantee complicated more.
At present; because it is perfect not enough to relate to the mobile flow medium technology of IMS terminal; so for some sudden problems that often occur in the 3G streaming media service; server process difficulty or the like during as phenomenon, popular contents of a large number of users burst access (as live telecast) such as the pause in the playback of media files, mosaics; usually can cause local IMS QoS of survice index seriously to descend; and total bearing capacity of communication network still has situation more than needed simultaneously, and interaction technique often can be utilized to increase network utilization.
In standards such as 3GPP TS 29.208, TS 29.162 and TS 29.163 management of IMS QoS of survice and interaction technique are introduced: terminal will have the ability to support to carry out alternately with CS network and PS network, this process relates to definition interactive function entity, determine control plane interaction models and user plane interaction models, and clear and definite IMS is to the contents such as requirement in PS territory, consider traditional mobile communications network PS business seamlessly transitting but all lay particular stress in these standards to IMS territory business, cause interaction flow complicated, thereby also cause the poor efficiency of realization aspect.
QoS solutions such as coding techniques commonly used, congested and error-control technique all are the scheme development from cable network, only start with from the improvement of the source end server that is in the system core, so treatment effeciency are limited when being used for the IMS architectural framework; Mobile flow medium content distributing network (MSM-CDN) technology has the ability that information source is provided nearby, be that a kind of ratio is more suitable for the QoS solution in the IMS architectural framework, its key technology comprises distribution of content, content distribution, content route and caching technology etc., but owing to the distribution of content among the MSM-CDN, content distribution, these three kinds of technology of content route, all need to utilize a large amount of stacking server nodes, therefore the hardware device that relates to is more, make that the early investment cost of IMS networking is too high, so caching technology is of greatest concern comparatively speaking.
Main caching technology has forward buffer memory, oppositely 3 kinds of buffer memory and Transparent Proxy buffer memorys among the MSM-CDN, and is wherein most effective with proxy caching.But because present proxy caching technology only rests on stage of transparent transmission, be difficult to the network emergency case is made flexible reply, thereby be difficult to solve in such cases QoS problem.
Summary of the invention
The object of the present invention is to provide a kind of IMS terminal, stacking server and IMS method for processing business, the network emergency situations is made flexible reply, improve the IMS performance of services.
To achieve these goals, the invention provides a kind of IMS terminal, mutual with stacking server, comprise the RTP/RTCP submodule, comprise IMS state of affairs supervising device and RTSP (real-time streaming protocol) agent apparatus in the described RTP/RTCP submodule, wherein:
Described IMS state of affairs supervising device is used for the state of affairs according to monitoring parameter monitoring and judgement IMS business, and notifies described RTSP agent apparatus with described state of affairs;
The RTSP agent apparatus is used for when state of affairs is unusual, utilizes RTSP to send the request of handling abnormal conditions to stacking server.
Above-mentioned IMS terminal, wherein, described RTSP agent apparatus also is used in state of affairs just often, sends the request of handling normal condition to stacking server.
Above-mentioned IMS terminal, wherein, described monitoring parameter comprises the error rate, delay jitter, transmission rate, response time.
In order better to realize above-mentioned purpose, the present invention also provides a kind of stacking server, with the IMS terminal interaction, comprises that signaling reception and judge module and state of affairs improve module, wherein:
Signaling receives and judge module, is used for when utilizing RTSP to receive the request of the processing abnormal conditions that the IMS terminal sends, and sends to improve state of affairs and instruct and improve module to state of affairs;
State of affairs is improved module, is used for improving state of affairs when instruction receiving, and improves state of affairs.
Above-mentioned stacking server, wherein, described state of affairs is improved module and specifically is used to improve the service priority of IMS terminal and/or the transmission route of change IMS business.
Above-mentioned stacking server, wherein, described state of affairs is improved module and also is used for when the transmission route of service priority that improves the IMS terminal and/or change IMS business can't be improved state of affairs, and notice IMS terminal can't be improved state of affairs.
Above-mentioned stacking server, wherein, also comprise the regular traffic processing module, described signaling receives and judge module also is used for when the request of the processing abnormal conditions that receive the transmission of IMS terminal, transmission is kept state of affairs and is instructed to the regular traffic processing module, described regular traffic processing module is used for keeping state of affairs when instruction receiving, and handles the IMS business by the normal flow of existing IMS business.
In order better to realize above-mentioned purpose, the present invention also provides a kind of IMS method for processing business, comprising:
The initiation of services step, IMS terminal and stacking server are mutual, enter the IMS business processing flow;
IMS state of affairs monitoring step, the state of affairs of IMS terminal monitoring IMS business, and whether the indicating services situation is normal;
IMS terminal end treatment step, IMS terminal utilize RTSP (real-time streaming protocol) to send the request of handling abnormal conditions to stacking server when state of affairs is unusual;
Stacking server end treatment step, stacking server improve state of affairs when utilizing RTSP to receive the request of handling abnormal conditions.
Above-mentioned method, wherein, in the described IMS terminal end treatment step, the IMS terminal in state of affairs just often sends the request of handling normal condition to stacking server; In the described stacking server end treatment step, stacking server is kept the existing business normal process when utilizing RTSP to receive the request of handling normal condition.
Above-mentioned method, wherein, described stacking server end treatment step specifically improves state of affairs by service priority that improves the IMS terminal and/or the transmission route that changes the IMS business.
Above-mentioned method, wherein, the IMS terminal is by the state of affairs of the error rate, delay jitter, transmission rate and the one or more monitoring IMS business in the response time.
The present invention has adopted in MSM-CDN and can carry out the proxy caching of the RTSP proxy module of two-way interactive as the IMS terminal, when state of affairs is undesirable, can in time notify stacking server to improve professional state of affairs, improved the response efficiency of IMS system, the timely responding ability when particularly the wireless communication burst situation occurring to terminal.
The request that the IMS of stacking server reception simultaneously terminal transmits is handled after the interactive information of abnormal conditions, can be by coordinating to adjust automatically route mutually, reduce the generation of congestion link, make not needing to increase on the basis of stacking server, improve Streaming Media transmission performances and response time as far as possible.
Simultaneously, the energy force rate Transparent Proxy buffer memory of emergency case is stronger in the RTSP agent processes radio communication, and the realization technology is also more convenient.
Description of drawings
Fig. 1 is the structural representation of existing IMS terminal;
Fig. 2 is the schematic flow sheet of method of the present invention;
Fig. 3 is the detail flowchart of stacking server end treatment step in the inventive method.
Embodiment
In IMS terminal of the present invention, stacking server and the IMS method for processing business, detect state of affairs when unusual in the IMS terminal, send the interactive signal of reporting abnormal information to stacking server, adjust according to actual conditions, improve the QoS index of IMS end by stacking server.
IMS terminal of the present invention is provided with in the RTP/RTCP submodule on the basis of existing IMS terminal shown in Figure 1 in addition:
Whether IMS state of affairs supervising device is used to monitor the state of affairs of IMS business, and sends the state of affairs indication signaling that comprises the IMS state of affairs to the RTSP agent apparatus, be used to indicate state of affairs normal;
The RTSP agent apparatus, be used to receive the state of affairs indication signaling, and be used for when state of affairs indication signaling indicating services situation is unusual, utilize RTSP to send the request of handling abnormal conditions to stacking server, in state of affairs indication signaling indicating services situation just often, it acts on not Transparent Proxy buffer memory, is used for sending the request of handling normal condition to stacking server.
RTSP (RFC2326) has defined one-to-many application and how to have transmitted multi-medium data by IP network effectively.When using RTSP, client-server can be sent request, and promptly RTSP can be two-way.There has been corresponding RTSP agency to use disposing at present, the Darwin Streaming Proxy of the open source code that provides as Australia Monash university, this proxy construction compactness, code efficiency is high.
Wherein, in following situation, supervising device sends the unusual state of affairs indication signaling of indicating services situation to the RTSP agent apparatus:
Scheduled wait after the IMS terminal request is sent can not get response in the time;
Transmission quality seriously descends when handling the IMS business, causes " dying of hunger " phenomenon of Transparent Proxy buffer memory, then is considered as running into the emergency case in the radio communication.
Stacking server of the present invention comprises:
Signaling receives and judge module, be used to utilize RTSP and RTSP agent apparatus mutual, and when receiving the request of the processing abnormal conditions that the RTSP agent apparatus sends, send and improve state of affairs and instruct and improve module to state of affairs, requirement improves state of affairs, when receiving the request of the processing normal condition that the RTSP agent apparatus sends, send and keep state of affairs and instruct, keep the existing business normal process to the regular traffic processing module;
State of affairs is improved module, is used for improving state of affairs when instruction receiving, and improves state of affairs;
The regular traffic processing module is used for keeping state of affairs when instruction receiving, and handles the IMS business by the normal flow of existing IMS business.
State of affairs among the present invention is improved the state of affairs index that module can be improved the IMS business in the following manner: 1, improve the service priority of this IMS terminal, make it obtain the public resource of reserving in the corresponding stacking server (CPU time sheet, bandwidth and buffering area); 2, the transmission route of change IMS business makes it can utilize abundant resources in the IMS system (as bandwidth and reserve buffering area); 3, as the IMS service interworking operation (in IMS request waiting list, carrying out the adjustment of resource allocation automatically according to priority) of stacking server extended function.
Simultaneously, this state of affairs is improved module, also be used in situation such as backbone network is congested, cause the QoS index of IMS terminal to improve, but improving state of affairs instructs when not eliminating at the appointed time, utilizing signaling to receive and the existence of the above-mentioned situation of judge module indication RTSP agent apparatus, can be the information of " please wait a moment applies for this business again " as this signaling, or the information of " this business is not temporarily accepted applications " and so on.
As shown in Figure 2, IMS method for processing business of the present invention comprises the steps:
The initiation of services step, IMS terminal and stacking server are mutual, enter the IMS business processing flow;
IMS state of affairs monitoring step, the state of affairs of IMS terminal monitoring IMS business, and whether the indicating services situation is normal;
IMS terminal end treatment step, IMS terminal utilize RTSP (real-time streaming protocol) to send the request of handling abnormal conditions to stacking server when state of affairs is unusual, in state of affairs just often, send the request of handling normal condition to stacking server;
Stacking server end treatment step, stacking server improve state of affairs when utilizing RTSP to receive the request of handling abnormal conditions, keep the existing business normal process when utilizing RTSP to receive the request of handling normal condition.
Further each step of the inventive method is described in detail below.
Wherein, judge among the present invention whether state of affairs normally can adopt qos parameter to judge, wherein most importantly these four kinds of transmission time, delay jitter, bandwidth and the error rate/packet loss.
In the specific embodiment of the inventive method, will utilize above qos parameter to describe.
Simultaneously, the data packet format that signaling reception in RTSP agent apparatus and the stacking server and judge module carry out information interaction is constant, in mutual packet set, add packets such as " improving state of affairs ", " keeping state of affairs ", " please wait a moment applies for this business again ", the form of these packets can define with reference to existing packet, does not give unnecessary details at this.
This stacking server end treatment step specifically comprises as shown in Figure 3:
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 (11)
1. an IMS terminal is mutual with stacking server, comprises the RTP/RTCP submodule, it is characterized in that, is provided with IMS state of affairs supervising device and RTSP agent apparatus in the described RTP/RTCP submodule, wherein:
Described IMS state of affairs supervising device is used for the state of affairs according to monitoring parameter monitoring and judgement IMS business, and notifies described RTSP agent apparatus with described state of affairs;
Described RTSP agent apparatus is used for when state of affairs is unusual, utilizes RTSP to send the request of handling abnormal conditions to described stacking server.
2. IMS terminal according to claim 1 is characterized in that, described RTSP agent apparatus also is used in state of affairs just often, sends the request of handling normal condition to described stacking server.
3. IMS terminal according to claim 1 and 2 is characterized in that, described monitoring parameter comprises the error rate, packet loss, delay jitter, bandwidth and in the transmission time at least one.
4. a stacking server with the IMS terminal interaction, is characterized in that, comprising:
Signaling receives and judge module, is used for when utilizing RTSP to receive the request of the processing abnormal conditions that described IMS terminal sends, and sends to improve state of affairs and instruct and improve module to state of affairs;
State of affairs is improved module, is used for improving state of affairs receiving described state of affairs when instruction of improving.
5. stacking server according to claim 4 is characterized in that, described state of affairs is improved module and specifically is used for improving state of affairs by service priority that improves the IMS terminal and/or the transmission route that changes the IMS business.
6. stacking server according to claim 5, it is characterized in that, described state of affairs is improved module and also is used for notifying described IMS terminal can't improve state of affairs when the transmission route of service priority that improves the IMS terminal and/or change IMS business can't be improved state of affairs.
7. according to claim 4,5 or 6 described stacking servers, it is characterized in that, also comprise the regular traffic processing module;
Described signaling receives and judge module also is used for when the request of the processing normal condition that receives the transmission of IMS terminal, and transmission is kept state of affairs and instructed to the regular traffic processing module;
Described regular traffic processing module is used for keeping state of affairs when instruction receiving, and handles the IMS business by the normal flow of existing IMS business.
8. an IMS method for processing business is characterized in that, comprising:
The initiation of services step, IMS terminal and stacking server are mutual, enter the IMS business processing flow;
IMS state of affairs monitoring step, the state of affairs of IMS terminal monitoring IMS business, and whether the indicating services situation is normal;
IMS terminal end treatment step, IMS terminal utilize RTSP to send the request of handling abnormal conditions to stacking server when state of affairs is unusual;
Stacking server end treatment step, stacking server improve state of affairs when utilizing RTSP to receive the request of handling abnormal conditions.
9. method according to claim 8 is characterized in that, in the described IMS terminal end treatment step, the IMS terminal in state of affairs just often sends the request of handling normal condition to stacking server; In the described stacking server end treatment step, stacking server is kept the existing business normal process when utilizing RTSP to receive the request of handling normal condition.
10. according to Claim 8 or 9 described methods, it is characterized in that in the described stacking server end treatment step, specifically the service priority by improving the IMS terminal and/or the transmission route of change IMS business are improved state of affairs.
11. according to Claim 8 or 9 described methods, it is characterized in that the IMS terminal is by the error rate, packet loss, delay jitter, bandwidth, the states of affairs of one or more monitoring IMS business in the transmission time.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610165229.6A CN101202743A (en) | 2006-12-14 | 2006-12-14 | IMS terminal, stacking server and method of IMS handling of traffic |
| PCT/CN2007/003607 WO2008071092A1 (en) | 2006-12-14 | 2007-12-14 | An ims terminal, a superposing server and an ims service processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610165229.6A CN101202743A (en) | 2006-12-14 | 2006-12-14 | IMS terminal, stacking server and method of IMS handling of traffic |
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| CN101202743A true CN101202743A (en) | 2008-06-18 |
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| CN200610165229.6A Pending CN101202743A (en) | 2006-12-14 | 2006-12-14 | IMS terminal, stacking server and method of IMS handling of traffic |
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| WO (1) | WO2008071092A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101902776A (en) * | 2010-07-08 | 2010-12-01 | 华南理工大学 | An Improved RTS/CTS-Based Congestion Control Method for Multi-hop Wireless Networks |
| CN104753811A (en) * | 2013-12-30 | 2015-07-01 | 中国移动通信集团公司 | Streaming medium service optimizing method, device and system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2004317109B2 (en) * | 2004-02-12 | 2008-05-22 | Core Wireless Licensing S.A.R.L. | Classified media quality of experience |
| EP1619853A1 (en) * | 2004-07-21 | 2006-01-25 | Siemens Mobile Communications S.p.A. | RTSP proxy extended to detect streaming session events and report to valued streaming applications the notified ones |
| CN100423510C (en) * | 2004-09-17 | 2008-10-01 | 大唐高鸿数据网络技术股份有限公司 | Device and its method for increasing multimedia communication quality by monitoring RTP/RTCP stream |
-
2006
- 2006-12-14 CN CN200610165229.6A patent/CN101202743A/en active Pending
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2007
- 2007-12-14 WO PCT/CN2007/003607 patent/WO2008071092A1/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101902776A (en) * | 2010-07-08 | 2010-12-01 | 华南理工大学 | An Improved RTS/CTS-Based Congestion Control Method for Multi-hop Wireless Networks |
| CN101902776B (en) * | 2010-07-08 | 2013-04-03 | 上海海事大学 | Improved request-to-send (RTS)/clear-to-send (CTS)-based method for controlling congestion of multi-hop wireless network |
| CN104753811A (en) * | 2013-12-30 | 2015-07-01 | 中国移动通信集团公司 | Streaming medium service optimizing method, device and system |
| CN104753811B (en) * | 2013-12-30 | 2018-02-23 | 中国移动通信集团公司 | A kind of streaming media service optimization method, equipment and system |
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| Publication number | Publication date |
|---|---|
| WO2008071092A1 (en) | 2008-06-19 |
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Open date: 20080618 |