CN101621751A - Distributed optimizing processing method for media-stream transmission of POC service - Google Patents
Distributed optimizing processing method for media-stream transmission of POC service Download PDFInfo
- Publication number
- CN101621751A CN101621751A CN200910165423A CN200910165423A CN101621751A CN 101621751 A CN101621751 A CN 101621751A CN 200910165423 A CN200910165423 A CN 200910165423A CN 200910165423 A CN200910165423 A CN 200910165423A CN 101621751 A CN101621751 A CN 101621751A
- Authority
- CN
- China
- Prior art keywords
- user terminal
- poc
- poc user
- rtp
- real
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses a distributed optimizing processing method for media-stream transmission of a POC service. A function of logic judgment is added at a control server CS of POC, whether one part of RTP data is sent by the CS to PS is judged according to real-time state information of each POC user terminal subordinate to a specific participant server PS, and a function of recording an address, a port and a real-time communication state of the subordinate each POC user terminal is added at the PS so that the PS can determine the copy parts of copying the RTP data according to the state of each POC user terminal, and the PS copies and dispatches the RTP data according to the information record of the POC user terminal so as to dispatch the copy dispatch function of the RTP data at the CS to each PS as much as possible, thereby the dependence degree of the CS by a network system is reduced, the load of the CS is lightened, and the queue time delay of the media-stream at the CS is shortened. Aiming to carry out the distributed optimizing processing method for the RTP media-stream of a POC-4 interface, the invention reduces the network flow of the POC-4 interface and reduces media-stream transmission time delay.
Description
Technical field
The present invention relates to a kind of improvement or optimization method of the new business based on 3G, exactly, relate to a kind of distributed optimizing processing method of media flow transmission of the PTT POC business that is used for 3G technology, belong to the communication technical field of 3G new business.
Background technology
Along with third generation 3G (3
RdGeneration) fast development of mobile communication technology is as the professional extensive concern that also has been subjected to people day by day of the POC (Push to Talk over Cellular) of one of 3G signage applications.POC be a kind of two-way, immediately, cluster communication service in many ways, allow one to one or the instant messaging of one-to-many, the user only needs as using intercom, just need not to dial by next key can be fast, directly with network coverage in a plurality of users realize half-duplex operation, therefore, the POC mobile phone is otherwise known as based on the intercom of mobile phone.
Referring to Fig. 1, introduce the POC business structure schematic diagram that the present invention is based on IP Multimedia System IMS.POC client among the figure (POC Client) is the user terminal of POC business, and POC server (POCServer) is a network element entity of finishing functions such as calling privilege control, Media Stream control forwarding and session centralized control in the POC session.POC server has following two kinds of mode of operations: control model (Controlling) and participation pattern (Participating); The POC server that works in control model is called POC Control Server CS (Controlling Server), and the POC server that works in the participation pattern is called POC and participates in server PS (Participating Server).POC Control Server CS is responsible for realizing functions such as the centralized control, signaling forwarding in the session, and POC participates in server PS and bears more and transmit various control signalings and Media Stream.
Each POC server all can serve as different roles respectively in the different phase in the POC session, i.e. CS or PS.Because in a POC session, the uncertainty of participant's the location distribution and the number of participation may have a plurality of POC server and participate in into.But, all only allow a POC server at any time and work in control model, exercise the function of master control, other all POC server all is operated under the participation pattern.
The POC-4 interface is the interface of local POC server with other POC server in the POC session, and the data owner of this interface bearing will comprise realtime transmission protocol RTP, RTP Control Protocol RTCP, message session trunk protocol MSRP (The Message Session Relay Protocol) and real-time streaming protocol RTSP media data flows such as (Real Time Streaming Protocol) and control signaling flow.At the RTP Media Stream of POC-4 interface, the open mobile interconnected OMA of organizing (Open Mobile Alliance) has successively proposed transmission control protocol MTP and has improved mechanism-transmission control optimizing agreement MTO.
But, also there is the bigger problem of time delay of media flow transmission in the present POC business, make the effect of communication be greatly affected.Therefore, in communication process, how to reduce the problem of the propagation delay time of Media Stream, become an important technological problems of being badly in need of solution, and caused many scientific and technical personnel's concern.
Summary of the invention
In view of this, the distributed optimizing processing method that the purpose of this invention is to provide a kind of media flow transmission of the POC of being used for business, this method is at the transmission control protocol MTP of OMA tissue and improve mechanism-basis of transmission control optimizing agreement MTO on, rtp streaming at the POC-4 interface, the flow-optimized method of distributed media has been proposed, RTP Media Stream to the POC-4 interface is optimized processing, to alleviate the transmission burden of POC service control server CS, reduce the network traffics of POC-4 interface, reach the purpose that reduces the media flow transmission time delay.
In order to achieve the above object, the invention provides a kind of distributed optimizing processing method of media flow transmission of the POC of being used for business, it is characterized in that: the function of setting up logic determines at POC Control Server CS place, promptly this CS can be according to the real-time status information of specific participation server PS subordinate's POC user terminal, judge whether and to send 1 part of RTP data to this PS, increase the address of each POC user terminal of its subordinate of record simultaneously at this PS place, the function of port and real-time talking state, make this PS to duplicate the fanout of RTP data according to the state decision of each POC user terminal, promptly this PS writes down according to the information of POC user terminal and duplicates and distribute the RTP data, the RTP data at CS place are duplicated distribution function to be distributed to each PS place as best one can and to realize, thereby reduce the degree of dependence of network system, alleviate the load of CS and reduce the queuing delay of the Media Stream at CS place CS.
Described method comprises following operating procedure:
(1) in setting up the process of session, CS will write down port, address and the real-time status of its all POC user terminals of administering, write down address and the port of its all PS that control again simultaneously, and port, address and the real-time status of each POC user terminal of this PS subordinate; Each PS then writes down address, port and the real-time status of each POC user terminal of this PS self subordinate, and the real-time status of described user terminal is that the button of answering of this terminal is in down state (On Hold) or releasing orientation (OffHold);
(2) in conversation procedure, each PS is transmitted to CS to the RTP bag that the POC user terminal with right to speak in this PS self sub-ranges sends;
(3) CS receives the RTP bag that the POC user terminal with right to speak in this CS or its each PS that controls self sub-ranges sends;
(4) this CS judges whether to send 1 part of these RTP data to this PS according to the real-time status information of the POC user terminal in its each PS that controls self sub-ranges: if the POC user terminal this PS sub-ranges in is in the quantity of unclamping (Off Hold) state and being in non-floor status simultaneously when being not less than 1, this CS is to 1 part of RTP data of this PS transmission; Otherwise, do not send this RTP data;
(5) this CS sends this RTP data to POC user terminal its administration, that be in particular state simultaneously, promptly only sends to be in releasing orientation (Off Hold) and not to be current speaking person's POC user terminal;
(6) receive the RTP bag that CS sends after, each PS judges according to address, port and the state information of the POC user terminal in all sub-ranges of local record, duplicate whether will for the POC user terminal that is in the particular state condition and distribute this RTP bag, promptly only to being in releasing orientation (Off Hold) and not being that current speaking person's POC user terminal sends this RTP bag.
The present invention is a kind of distributed optimizing processing method of media flow transmission of the PTT POC business that is used for 3G technology, this method is based on the thought of loose coupling and distributed control, function by reduction network system management center P OC Control Server CS, the more control function is transferred to participation server PS one side away from CS, thereby alleviated the transmission burden of CS, reduced the average stop time delay that RTP wraps in the CS place, weakened the bottleneck effect at CS place, make the data traffic of POC-4 interface significantly reduce and held stationary, and saved the valuable network bandwidth, have the remarkable optimization effect of network synthesis performance.Therefore, the present invention has good popularization and application prospect.
Description of drawings
Fig. 1 is based on the POC service system structure of IMS and forms schematic diagram.
Fig. 2 is the operating procedure flow chart of the inventive method.
Fig. 3 is that POC-4 interface RTP bag of the present invention is transmitted schematic diagram.
Fig. 4 is the simulation result schematic diagram of the embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
The present invention is a kind of distributed optimizing processing method of media flow transmission of the POC of being used for business, this method is at the transmission control protocol MTP of OMA and improve mechanism-transmission control optimizing agreement MTO basis on, RTP Media Stream at the POC-4 interface, the flow-optimized method of distributed media that proposes, be DMTO, rtp streaming to the POC-4 interface has carried out optimization process, reaches the transmission burden that alleviates CS, reduces the target of the network traffics of POC-4 interface.
The inventive method is the function of setting up logic determines at POC Control Server CS place, promptly this CS can be according to the real-time status information of the POC user terminal of specific participation server PS sub-ranges, judge whether and to send 1 part of RTP data to this PS, increase the address of each POC user terminal of its sub-ranges of record simultaneously at this PS place, the function of port and real-time talking state, make whether this PS can duplicate the fanout of RTP data according to the state decision of each POC user terminal, promptly this PS writes down according to the information of POC user terminal and duplicates and distribute the RTP data, the RTP data at CS place are duplicated distribution function to be distributed to each PS place as best one can and to realize, thereby reduce the degree of dependence of network system, alleviate the load of CS and reduce the queuing delay of the Media Stream at CS place CS.
Referring to Fig. 2, introduce the concrete operations step of the inventive method:
(1) in setting up the process of session, CS will write down port, address and the real-time status of its all POC user terminals of administering, write down address and the port of its all PS that control again simultaneously, and port, address and the real-time status of each POC user terminal of this PS subordinate; Each PS then writes down address, port and the real-time status of each POC user terminal of this PS self subordinate, and the real-time status of described user terminal is that the button of answering of this terminal is in down state (On Hold) or releasing orientation (Off Hold);
(2) in conversation procedure, each PS is transmitted to CS to the RTP bag that the POC user terminal with right to speak in this PS self sub-ranges sends;
(3) CS receives the RTP bag that the POC user terminal with right to speak in this CS or its each PS that controls self sub-ranges sends;
(4) this CS judges whether to send 1 part of these RTP data to this PS according to the real-time status information of the POC user terminal in its each PS that controls self sub-ranges: if the POC user terminal this PS sub-ranges in is in the quantity of unclamping (Off Hold) state and being in non-floor status simultaneously when being not less than 1, this CS is to 1 part of RTP data of this PS transmission; Otherwise, do not send this RTP data;
(5) this CS sends this RTP data to POC user terminal its administration, that be in particular state simultaneously, promptly only sends to be in releasing orientation (Off Hold) and not to be current speaking person's POC user terminal;
(6) receive the RTP bag that CS sends after, each PS judges according to address, port and the state information of the POC user terminal in all sub-ranges of local record, duplicate whether will for the POC user terminal that is in the particular state condition and distribute this RTP bag, promptly only to being in releasing orientation (Off Hold) and not being that current speaking person's POC user terminal sends this RTP bag.
Referring to Fig. 3, introduce one embodiment of the present of invention.
Suppose that certain POC service conversation has 6 POC user terminals, wherein 5 POC user terminals (B, C, D, E, F) all belong to same PS and administer, and CS subordinate has only 1 POC user terminal (A).At this moment, user terminal B has obtained right to speak, and user terminal C is in down state (OnHold).
Then CS inquires this PS subordinate has 3 POC user terminals (D, E, F) to be in releasing orientation (Off Hold).According to the inventive method, CS sends 1 part of RTP packet only need for this PS.Similarly, this PS judges according to each POC user side address and the state information of local record: need send this moment to 3 POC user terminal D, E and F.Therefore, after this CS of employing the inventive method just will duplicate 2 parts from 1 part of RTP packet that PS receives, be transmitted to A and PS respectively, this PS duplicates 3 parts again and also is transmitted to user terminal D, E and F respectively.
Implement experiment by a large amount of emulation, and optimization method DMTO of the present invention is compared with MTP and the MTO technical scheme of OMA respectively, the result of test shows: the inventive method can significantly reduce the media flow transmission time delay.
Referring to Fig. 3.Introduce the The simulation experiment result that the applicant carries out, the abscissa of this figure is represented the number of the PS in the service conversation, and ordinate is the average waiting time delay of RTP packet at the CS end.Can find out significantly, when the PS number increases, the inventive method DMTO (being illustrated as solid line) compares with the MTO method (being illustrated as chain-dotted line) and the transmission control optimizing agreement MTP method (being illustrated as dotted line) of OMA tissue, and the DMTO method is obviously much smaller in the average waiting time delay of CS end.
Claims (3)
1, a kind of distributed optimization method that is used for the media flow transmission of POC business, it is characterized in that: the function of setting up logic determines at POC Control Server CS place, promptly this CS can be according to the real-time status information of specific participation server PS subordinate's POC user terminal, judge whether and to send 1 part of RTP data to this PS, increase the address of each POC user terminal of its subordinate of record simultaneously at this PS place, the function of port and real-time talking state, make this PS to duplicate the fanout of RTP data according to the state decision of each POC user terminal, promptly this PS writes down according to the information of POC user terminal and duplicates and distribute the RTP data, the RTP data at CS place are duplicated distribution function to be distributed to each PS place as best one can and to realize, thereby reduce the degree of dependence of network system, alleviate the load of CS and reduce the queuing delay of the Media Stream at CS place CS.
2, method according to claim 1 is characterized in that: described method comprises following operating procedure:
(1) in setting up the process of session, CS will write down port, address and the real-time status of its all POC user terminals of administering, write down address and the port of its all PS that control again simultaneously, and port, address and the real-time status of each POC user terminal of this PS subordinate; Each PS then writes down address, port and the real-time status of each POC user terminal of this PS self subordinate;
(2) in conversation procedure, each PS is transmitted to CS to the RTP bag that the POC user terminal with right to speak in this PS self sub-ranges sends;
(3) CS receives the RTP bag that the POC user terminal with right to speak in this CS or its each PS that controls self sub-ranges sends;
(4) this CS judges whether to send 1 part of these RTP data to this PS according to the real-time status information of the POC user terminal in its each PS that controls self sub-ranges: if the POC user terminal this PS sub-ranges in is in the quantity of unclamping (Off Hold) state and being in non-floor status simultaneously when being not less than 1, this CS is to 1 part of RTP data of this PS transmission; Otherwise, do not send this RTP data;
(5) this CS sends this RTP data to POC user terminal its administration, that be in particular state simultaneously, promptly only sends to be in releasing orientation (OffHold) and not to be current speaking person's POC user terminal;
(6) receive the RTP bag that CS sends after, each PS judges according to address, port and the state information of the POC user terminal in all sub-ranges of local record, duplicate whether will for the POC user terminal that is in the particular state condition and distribute this RTP bag, promptly only to being in releasing orientation (OffHold) and not being that current speaking person's POC user terminal sends this RTP bag.
3, method according to claim 1 is characterized in that: the real-time status of described user terminal is that the button of answering of this terminal is in down state (On Hold) or releasing orientation (OffHold).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910165423A CN101621751A (en) | 2009-08-03 | 2009-08-03 | Distributed optimizing processing method for media-stream transmission of POC service |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910165423A CN101621751A (en) | 2009-08-03 | 2009-08-03 | Distributed optimizing processing method for media-stream transmission of POC service |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101621751A true CN101621751A (en) | 2010-01-06 |
Family
ID=41514732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910165423A Pending CN101621751A (en) | 2009-08-03 | 2009-08-03 | Distributed optimizing processing method for media-stream transmission of POC service |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101621751A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105813029A (en) * | 2010-01-19 | 2016-07-27 | 高通股份有限公司 | Session-triggered pushing of group communication data |
-
2009
- 2009-08-03 CN CN200910165423A patent/CN101621751A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105813029A (en) * | 2010-01-19 | 2016-07-27 | 高通股份有限公司 | Session-triggered pushing of group communication data |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1984207B (en) | Method and apparatus for charging in PoC service | |
| CN101015167B (en) | Method, network integral node and system for sharing ongoing data session | |
| CN101682409B (en) | Method for managing pre-established session, poc system and poc user equipment for implementing the same | |
| CN101194524B (en) | Method for forming a common communication session, method for forming a first communication session and a second communication session from a common communication session, and communication session controller | |
| CN103609147A (en) | Cluster communication system, cluster server, access network and cluster communication method | |
| CN101621658B (en) | Terminal, and method and system for terminal to realize wireless video conference | |
| CN102821358A (en) | Method for achieving group calling business | |
| CN103024682B (en) | Digital clustering communication system realizes the method for half-duplex single call service | |
| CN101160790A (en) | Multi-party communications service connection establishment method, system and connection control unit | |
| CN101129001A (en) | Method and system for granting floor in push-to-talk over cellular network | |
| CN101754090B (en) | Method and system for opening meetings when PC client is used for binding hard terminal | |
| CN100477862C (en) | Method and system for determining centrally controlled server | |
| CN103024684A (en) | Implementation method of single call service | |
| CN103686620A (en) | Method for preventing voices from being lost in group calling rapidly-building process | |
| CN100584068C (en) | Method for implementing wireless one key through service, and wireless one key through gateway | |
| CN102196367B (en) | PPT service processing method, and device and system thereof | |
| CN101043431B (en) | Method and system for shortening built-up time of multi-party communication service | |
| CN101820589B (en) | Method and system for dividing single poc group session | |
| WO2009071005A1 (en) | Method, system, server and client for transmitting media stream data | |
| WO2020119229A1 (en) | Electronic whiteboard control method, mobile terminal and electronic whiteboard system | |
| CN103945335B (en) | The methods, devices and systems of one group conversation | |
| CN104756447A (en) | Method for recording session information and recording server | |
| CN101621751A (en) | Distributed optimizing processing method for media-stream transmission of POC service | |
| CN100372399C (en) | Method for realizing group service | |
| CN103067189B (en) | A kind of master-slave mode TeleConference Bridge based on converged communication |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100106 |