CN101287014B - Method, system and device for realizing stream media service - Google Patents

Method, system and device for realizing stream media service Download PDF

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Publication number
CN101287014B
CN101287014B CN2008101146058A CN200810114605A CN101287014B CN 101287014 B CN101287014 B CN 101287014B CN 2008101146058 A CN2008101146058 A CN 2008101146058A CN 200810114605 A CN200810114605 A CN 200810114605A CN 101287014 B CN101287014 B CN 101287014B
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user
streaming media
media service
terminal
information
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CN101287014A (en
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周文安
胡浩
王文艳
宋梅
宋俊德
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Beijing University of Posts and Telecommunications
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Beijing University of Posts and Telecommunications
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Abstract

The invention discloses a method for realizing streaming media service, which comprises the steps that: an adaptive control entity receives a streaming media service request comprising user information and the information of the streaming media service sent by the user; if user authentication and service order are determined to be successful, a internally established strategic program of the adaptive control entity is utilized to analyze and determine a terminal and access mode currently most suitable for receiving the streaming media service for the user; negotiation with the user is carried out; the streaming media service is transmitted to the user by the terminal and access mode obtained by negotiation; during the transmission process of the streaming media service, if the adaptive control entity monitors the occurrence of a trigger event, new adaption is triggered; the streaming media service continues to be transmitted to a new terminal and access mode, and the original transmission is stopped. The method ensures that the user has good service experience during the process of the streaming media service all along. The invention also discloses a system and the adaptive control entity for realizing the streaming media service.

Description

A kind of method, system and device of realizing streaming media service
Technical field
The present invention relates to a kind of adaptation method that is used for the streaming media service transmission of a plurality of terminal multi-access network environment, in the streaming media service handoff procedure of a plurality of terminal multi-access networks, the present invention can ensure the continuity of user's streaming media service, with optimum terminal and access way receiving stream media, and, belong to the data transmission technology in mobile communication technology field for the fusion of isomery multiple access net of future generation has proposed effective way.
Background technology
Development along with communication, the network isomerous environment that comprises multiple access technology that the user faced becomes increasingly complex, the access network of different technologies has different qualities, comprise different covering powers, expense and to different QoS (Quality of Service, service order) tenability of business etc.For example, the flank speed that ADSL (Asymmetric Digital Subscriber Line, Asymmetrical Digital Subscriber Line) can provide is adjusted the distance very responsive with the copper cash quality, when distance increases, cross-talk especially far-end crosstalk increases, and will make circuit quality abominable.And WLAN is as the broadband wireless access mode, effective WLAN (Wireless Local Area Network, WLAN) speed is about 5.5Mbps, minimum 1Mbps, enough for general video or on-line meeting, therefore at the network's coverage area that WLAN is provided, places such as conference centre, hotel and enterprises for example, the user can realize high-speed wireless access.But the place of disposing focus at present is limited, and actual coverage is little, can't satisfy the successional requirement of streaming media service that the user moves on a large scale.Simultaneously, GPRS (General Packet RadioService, GPRS) as the 2.5G radio network technique of current Chinese main flow, national basic all provinces and cities have been covered, can allow the user obtain internet information whenever and wherever possible, immediately out of doors or no exception in the high-speed mobile, though GPRS can reach 115kbps in theory, but under the actual conditions, stable transmission rate is usually about 20kbps, and along with user's increase, the performance of network will further descend, and promptly poor stability and networking speed are slow.
The difference of heterogeneous network makes when the user enjoys communication service, is difficult in and satisfies the different demands of user when ensureing quality of service.When the network quality that this point inserts for the terminal of generally good " leading formula the application "-mobile flow medium of current industry is vicissitudinous, can cause Streaming Media and play unfavorable condition such as get stuck, delay, video quality shake are violent, bring harmful effect for user's appreciation.Wherein, the main network factors that influences user's receiving stream media service quality comprises available bandwidth, time-delay, packet loss and shake etc.
In order to reduce the influence of network to streaming media service, desirable complete stream media service system should comprise network bandwidth adaption function, be that stream media service system should be according to user's actual operating position, provide the bandwidth adaptation function, to reduce the influence that the network bandwidth difference that can use in the different time in same place or different location is at one time brought.When the user when playing stream media is professional, stream media service system can be surveyed the current actual bandwidth of user, sending to the user, ensure that the user can both see continuous broadcast under different bandwidth situation then with content near the compression of actual bandwidth speed.
And actual conditions are, even have the endless broadcast that the network bandwidth adaption function of complete function also only can be realized a network of a terminal, far can not satisfy demand complicated and actual in user's reality, As mentioned above, the environment of the multiple network coexistence faced of user at present, making that the user generally can have a plurality of terminals (for example single mode collection, multi mode terminal, portable notebook, PDA etc.) simultaneously can access stream media business resource.In the face of so many selection, the user wishes to select the optimum access way accesses network of optimum terminal resource, be that the user wishes can be in access stream media business resource, select optimum (it should be noted that, involved in the literary composition " suitable " is meant and not only can satisfies streaming media service QoS demand but also satisfy individual subscriber preference demand) terminal and access way receive the streaming media service of being asked, especially in the streaming media service transmission, still can keep the suitable terminal and the access way that this streaming media service are switched to other of business continuance.And relevant at present solution is also very few, and therefore being necessary to invent corresponding method solves the problems referred to above.
Summary of the invention
The objective of the invention is problem at above-mentioned existence, streaming media service implementation method in the multiple terminal plurality of access modes of a kind of user environment is proposed, system and entity, being embodied as the user (it should be noted that whenever and wherever possible, the prerequisite of " whenever and wherever possible " that relates among the present invention is, during user capture streaming media service resource, have at least the registered terminal of user current available, promptly have at least a registered user terminal to insert in the network that this terminal supports) unified adaptive selection can the receiving stream media business suitable terminal, and make in the streaming media service transmission course and can between different terminals, keep successional switching.
The embodiment of the invention provides a kind of method that realizes streaming media service, and this method comprises:
Adaptive controlled entity receives the streaming media service request that the user sends, and this request comprises the stream medium service information of the user profile and the streaming media service of asking, and described adaptive controlled entity carries out authentication according to described user profile to this user;
If authentication passes through, described adaptive controlled entity according to described user profile and stream medium service information determine the streaming media service of asking whether be the streaming media service that this user has ordered;
If ask streaming media service to order for this user streaming media service, according to described user profile and stream medium service information, by utilizing described adaptive controlled entity inside to decide strategy protocol, determine the current suitable terminal and the access way that can be used to the user to receive the streaming media service of asking;
Described adaptive controlled entity and this user consult to receive for the user terminal and the access way of described request streaming media service;
After described adaptive controlled entity receives user's acknowledge message of this user, the user that will comprise the sign of the terminal of consulting to determine with this user and access way confirms that notification message sends to the streaming media service supplier of the streaming media service that this request is provided, after this streaming media service supplier received described sign, the user terminal of determining to this sign according to the access way of determining in the described sign transmitted the streaming media service of asking;
In the described streaming media service transmission course, the cycle information of this terminal that described adaptive controlled entity is periodically submitted according to described user terminal, upgrade the relevant information of having preserved, comprise the user terminal information and the current sequence number of playing frame of described streaming media service of described terminal in this cycle information;
If in the process of this streaming media service of transmission, described adaptive controlled entity monitors and influences that this streaming media service can't continue to meet consumers' demand and the trigger event of QoS of survice demand transmission takes place, then can trigger again adaptively, promptly described adaptive controlled entity can be determined the current optimum terminal and the access way that can continue to receive this streaming media service for this user for this customer analysis again;
If the result of described adaptive controlled entity analysis of strategies is not current terminal and/or the person's access way that is receiving this streaming media service, then described adaptive controlled entity is finished the negotiation with the user again;
Adaptive controlled entity guarantees under the successional situation of described streaming media service according to the new terminal that consult to obtain and the sign of access way, and the streaming media service of current transmission is switched to new terminal and/or access way.
The embodiment of the invention also provides a kind of system that realizes streaming media service, and this system comprises: user terminal, adaptive controlled entity and streaming media service supplier, wherein,
Described user terminal, it is the terminal that the user has registered at described adaptive controlled entity, be used for the streaming media service request is sent to described adaptive controlled entity, this request comprises the stream medium service information and the user profile of being asked, and it is professional and the cycle information of this user terminal periodically reported to described adaptive controlled entity to be used for receiving stream media, described cycle information comprises the user terminal information of this user terminal, if this terminal just in the receiving stream media business, also comprises the current sequence number of playing frame of described streaming media service in the then described cycle information;
Described adaptive controlled entity, be used for according to user preference information, user terminal information and streaming media service relevant information, utilize described adaptive controlled entity inside decided the strategy protocol analysis determine to go out can by this user receive the optimum terminal and the access way of request streaming media service, and consult to obtain terminal and the access way adaptive with the user, will comprise the sign of described optimum terminal and access way and the message of current playing stream media business information then and send to described streaming media service supplier with current streaming media service;
Described streaming media service supplier is used to the user that streaming media service is provided, and is used to described adaptive controlled entity that the streaming media service relevant information is provided.
The present invention also provides a kind of adaptive controlled entity, and this adaptive controlled entity comprises: monitoring collector unit and adaptive selected cell, wherein,
Described monitoring collector unit is used for collecting, monitors and storage user related information, user terminal information and streaming media service relevant information;
Described adaptive selected cell is used to receive the request of user's streaming media service, this user is carried out authentication, determine whether this user has ordered the streaming media service of asking, utilize the inner strategy protocol of deciding, the current optimum terminal and the access way that can receive the streaming media service of being asked for the user determined in analysis, consult the terminal and the access way of receiving stream media business with the user, notification streams media business supplier is transmitted this streaming media service to the user; And if described adaptive controlled entity monitors trigger event in this streaming media service transmission course, can be for the adaptive again selection of this user and consult new optimum terminal and access way, notification streams media business supplier switches to the streaming media service of current transmission again the optimum terminal and the access way of consulting to obtain with the user.
In the embodiment of the invention, the user asks to use streaming media service, by user terminal and access way whenever and wherever possible with the professional adaptive method of received streaming media, when request is initiated, determine and consult to obtain to receive the best-fit terminal and the access way of the streaming media service of described request by adaptive control system analysis with the user, the streaming media service supplier transmits stream medium data via adaptive control system for the path of setting up between itself and the user, in the streaming media service transmission, trigger adaptive again selection according to the Client-initiated request or by the trigger event that described adaptive controlled entity monitors, be the streaming media service of the current reception of user optimum available terminal of adaptive again selection and access way, the current sequence number of playing frame of streaming media service by described adaptive controlled entity preservation, realize ensureing that streaming media service is successional switches to new path simultaneously, guarantees that user's whole service carries out having all the time in the process favorable service to experience.
Description of drawings
Fig. 1 is an embodiment of the invention system results schematic diagram;
Fig. 2 is the adaptive controlled entity data structure of an embodiment of the invention schematic diagram;
Fig. 3 is an embodiment of the invention method step schematic flow sheet;
Fig. 4 is the adaptive controlled entity structural representation of the embodiment of the invention.
Embodiment
The user sends to adaptive controlled entity by the service request that some current available terminal will contain user profile and requested stream medium service information, and this adaptive controlled entity carries out authentication according to user profile to this user; If authentication is passed through, and described adaptive controlled entity is determined the streaming media service whether this user has ordered according to described user profile and stream medium service information; If described adaptive controlled entity determines that the streaming media service of asking is the streaming media service that described user has ordered, then determine this user's user terminal information and the user preference information that this user has ordered according to described user profile, and determine the QoS of survice demand of the streaming media service of asking according to the stream medium service information inquiry of request streaming media service, that utilizes this adaptive controlled entity inside decides strategy protocol, according to described user preference information, the QoS of survice demand of the user terminal information and the streaming media service of asking, analysis determine current can by this user receive the optimum terminal and the access way of request streaming media service, this adaptive controlled entity sends to this user terminal and comprises the optimum terminal that described analysis determines and the negotiation request of access way sign, this user returns the result who oneself selects as confirming to respond, after this adaptive controlled entity receives this user's affirmation message, the user that will comprise the sign of terminal that this user selects and access way confirms to notify and sends to the streaming media service supplier that the streaming media service of asking is provided, after this streaming media service head supplier receives described sign, transmit the streaming media service of being asked according to user terminal and access way that described sign is determined to this sign; In the transmission course of this streaming media service, this user terminal is the same with other registered user terminal, continuation is periodically submitted cycle information to described adaptive controlled entity, but the cycle information that this terminal is submitted not only comprises user terminal information, the current sequence number of playing frame of streaming media service that also comprises this terminal and received, described adaptive controlled entity is monitored this cycle information, and updates stored in the corresponding information of described adaptive controlled entity inside; If in the process of this streaming media service of transmission, adaptive controlled entity monitors and influences that this Streaming Media can't continue to meet consumers' demand and the trigger event of QoS of survice demand transmission takes place, then can trigger again adaptive, promptly this adaptive controlled entity utilizes the inner strategy protocol of deciding again, according to the QoS of survice demand of the streaming media service of described user's preference information, user terminal information and current transmission, determine the optimum terminal and the access way that can continue to receive this streaming media service for customer analysis again for the user; If the result of analysis of strategies is not current terminal and/or the person's access way that is receiving this streaming media service, then this adaptive controlled entity is finished the negotiation with the user again; If consult successfully, then send switching notice to terminal of reselecting and access way; If receiving user's's " agreement " of response switching notice user, adaptive controlled entity confirms, the handoff request that then will comprise the sign of new terminal of selecting of user and access way sends to the streaming media service of this streaming media service supplier is provided, this streaming media service supplier is according to described sign, and terminal and the access way determined to this sign continue this streaming media service of transmission; If new transmission is set up successfully, then interrupt original transmission, realize the streaming media service transmission continuity.In the embodiment of the invention, described user terminal can be IP (Internet Protocol, be Internet protocol) PC (the Personal Ccmputer of network, be PC) terminal, WiFi (Wireless Fidelity, be adopting wireless fidelity technology) terminal or GSM (GlobalSystem For Mobile Communications, be global system for mobile communications) network terminal etc., described user profile can comprise this user's username and password etc., described stream medium service information can comprise the sign of this streaming media service etc., described user terminal information can comprise the terminal iidentification of this terminal, terminal self performance information (for example, the type of service that terminal current electric quantity and this terminal are supported etc.) and the network performance information of the current access network of this terminal (for example, the broadband, time delay, shake, packet loss and rate etc.), described user preference information can comprise that the individual preference terminal of user's receiving stream media business and user are to (for example receiving professional specific demand, the user always selects to use the minimum mode receiving stream media business of rate etc.), described QoS of survice demand can comprise realize this streaming media service minimum QoS demand (for example, for guarantee certain business again the user experience under the good situation and received by the user, demands such as packet loss＜3%), it is described that to have decided strategy protocol be this adaptive controlled entity inside, with user preference information, the QoS of survice demand of user terminal information and streaming media service is as input, the optimum terminal of the current reception streaming media service of asking and certain algorithm of access way are determined in analysis, the sign of described terminal and access way completely this sign is determined and is connected to this terminal, sign such as IP address for example, described cycle information comprises user terminal information, user preference information, for just at the user terminal of receiving stream media business, this cycle information also comprises the current sequence number of playing frame of described streaming media service, described trigger event can be to influence described user preference information of having decided strategy protocol result of calculation, change incidents such as user terminal information (for example, the network quality of access network that is receiving the terminal of this streaming media service is seriously descended the degradation incident).
Describe the inventive method in detail below in conjunction with Figure of description.
As shown in Figure 1, be embodiment of the invention system results schematic diagram, this system comprises: user terminal, adaptive controlled entity and streaming media service supplier, wherein user terminal is used for providing cycle information to described adaptive controlled entity, this cycle information comprises user terminal information, if this terminal is just in the receiving stream media business, described cycle information also comprises the current sequence number of playing frame of described streaming media service, wherein user terminal information comprises the network performance information of the access network of terminal self information and this terminal, and be used to say that service request sends to described adaptive controlled entity, this service request comprises the stream medium service information of the user profile and the streaming media service of asking, and be used for terminal and access way that user and described adaptive controlled entity consult to receive the streaming media service of asking, and the streaming media service that is used to the request that receives.
Adaptive controlled entity is used for inquiring about this user related information that described adaptive controlled entity is preserved according to the described user profile that receives, and imposes a condition if the result of inquiry satisfies, and then authentication is passed through.Particularly, if user profile comprises username and password, judge whether the password that obtains from described controlled entity is identical with password the described user profile, if then authentication is passed through, if not then authentication is not passed through.
Adaptive controlled entity can also be used for determining according to described user profile and stream medium service information this user's streaming media service authority, the streaming media service that even described user has ordered comprises user's current business, then determine the streaming media service that current business has been ordered for the user, the user specifically has the authority of this streaming media service resource of visit.Concrete, described adaptive controlled entity is selected from the streaming media service sign that the user of this user profile correspondence that body preserves has ordered according to described user profile difference, judge whether described the order comprises in the streaming media service sign that the streaming media service that comprises in the described stream medium service information identifies, if comprise, determine that then the streaming media service of this user's current request is the streaming media service that the user has ordered; Otherwise the user does not order current streaming media service of asking, and promptly the user does not have right to visit this streaming media service resource.
Adaptive controlled entity can also be used for according to described user profile and stream medium service information, by utilizing the fixed strategy protocol in described adaptive controlled entity inside, determine the current suitable terminal and the access way that can be used to the user to receive the streaming media service of asking (streaming media service that is perhaps transmitting).Particularly, determine the user preference information that the current available subscribers end message of this user and this user have ordered according to described user profile, and determine the QoS of survice demand of the streaming media service of this request according to the stream medium service information of described request, that utilizes this adaptive controlled entity inside decides strategy protocol, according to the QoS of survice demand of described user preference information, described user terminal information and the streaming media service of asking, analyze and determine the current optimum terminal and the access way that can be used to the user to receive the streaming media service of asking.
Adaptive controlled entity can also be used for will receiving for the user with user's negotiation the terminal and the access way of the streaming media service (or the streaming media service that is transmitting) of described request.Particularly, described adaptive controlled entity comprises the optimum terminal of the strategy protocol acquisition of having set by described adaptive controlled entity inside and the negotiation request of access way information to the user terminal transmission, this terminal and access way are the current optimum terminal and the access waies that can receive the streaming media service of described request for the user, if the user accepts to receive with described optimum terminal and access way the streaming media service of described request, then sending user's " agreement " to described adaptive controlled entity confirms, otherwise, send user's " refusal " to this adaptive controlled entity and confirm.If user refusal, then described adaptive controlled entity then will with the user continue to write other can by the user receive the terminal and the access way of request streaming media service.
Adaptive controlled entity can also be used for the cycle information of supervisory user information and user terminal, and upgrades the inner related content of preserving of this adaptive controlled entity according to the information content.Particularly, the user can send user preference to this adaptive controlled entity by any terminal that has succeeded in registration and select, promptly according to the user preference information in the inner user related information of preserving of described this adaptive controlled entity of user preference selection renewal, described user preference information can comprise which terminal receiving stream media business user priority selects, or the user always selects by the minimum access network receiving stream media business of rate, and can influence the factor that terminal and access way are selected during other the access stream media business resources that can be understood by the user experience perception.In addition, the cycle information that the catcher in described adaptive controlled entity meeting cycle is submitted to all user terminals that succeeded in registration at this adaptive controlled entity, promptly every time T, user terminal can be submitted to this adaptive controlled entity and comprise user terminal self performance information and the current access network performance information of this terminal, if terminal is just when receiving stream media is professional, also comprise the current sequence number of playing frame of this streaming media service in the described cycle information, described adaptive controlled entity is saved in the described information updating that receives in the information content of this information project correspondence in this adaptive controlled entity.
Adaptive controlled entity can also be adaptive optimum terminal of the current streaming media service that is transmitting and access way after monitoring trigger event.Particularly, after described adaptive controlled entity receives described user profile and/or cycle information, at first, with this information be stored in this adaptive controlled entity in the corresponding last update content of this information project compare, adaptive selection terminal and access way influence degree when to be this trigger event for user's receiving stream media professional if comparative result meets the trigger event condition and the variation threshold value set, surpassed the variation threshold value if monitor the information change value that user terminal submits, then can trigger again adaptively, otherwise can only upgrade the described information that monitors of preserving.Described is the adaptive selection terminal of streaming media service and the access way of current reception again, can be that this adaptive controlled entity utilizes the inner strategy protocol of deciding again, according to the QoS of survice demand of the user preference information in the described user profile, user terminal information and the streaming media service of asking, determine the optimum terminal and the access way that can continue to receive this streaming media service for customer analysis again for the user.
Adaptive controlled entity can also be used for guaranteeing under the successional situation of described streaming media service according to the new terminal of consulting to obtain with the user and the sign of access way, and the streaming media service of current transmission is switched to new terminal and/or access way.Particularly, if monitor trigger event, and this trigger event triggers and utilizes recording a demerit that certain strategy protocol analysis determines not to be current terminal and/or the person's access way that is receiving this streaming media service again, and then this adaptive controlled entity is finished the negotiation with the user again.If consult successfully, described adaptive controlled entity then sends switching notice to the terminal of reselecting and the mode that counts; Agree that the user of switching confirms if receive, then this just carries handoff request sent to provides the streaming media service of this streaming media service supplier, this handoff request comprises that streaming media service that the terminal of the new adaptive selection of user and access way sign, user receive is represented and this streaming media service is current is playing genuine sequence number, when on behalf of described adaptive controlled entity, described sequence number monitor trigger event, the current position of playing the frame of this streaming media service of user that monitoring and renewal are preserved.
The streaming media service that the streaming media service supplier can also be asked to user's transmission user according to user profile and stream medium service information.Particularly, affiliated streaming media service supplier receives the negotiation requesting users affirmation notice that described adaptive controlled entity sends, this user confirm to notify comprise that user and described adaptive controlled entity consult to determine be used to receive the terminal of the streaming media service of asking and the sign of access way, the streaming media service of being asked is transmitted in the destination that described streaming media service supplier determines to transmit the streaming media service of asking according to described sign to described destination.
The streaming media service supplier can also send subscribe message to described adaptive controlled entity, and this subscribe message comprises the streaming media service sign that user profile and user order in the success of this streaming media service supplier place.Particularly, the user when described streaming media service supplier orders one/a plurality of streaming media service, if the user satisfies this streaming media service supplier's order requirement, then the streaming media service supplier gives the right of this order streaming media service resource of user capture, and the subscribe message that described streaming media service supplier will comprise the streaming media service sign that user profile and this user successfully ordered sends to described adaptive controlled entity.
The streaming media service supplier can also guarantee under the successional situation of streaming media service the streaming media service that transmits to the user to be switched to new terminal and/or access way according to the handoff request of described adaptive controlled entity.Particularly, described adaptive controlled entity sends handoff request to described streaming media service supplier, this handoff request comprises the terminal and the access way sign of the new adaptive selection of user, streaming media service sign and the current sequence number of playing frame of this Streaming Media that the user receives, affiliated streaming media service supplier is according to described sign, determine that continuing to receive this streaming media service starves new destination, and have more stream medium service information, determine the situation (this streaming media service that is the current user of being transferred to is in position that the original terminal plays of user stops) of current this streaming media service of reception of this user, begin to continue as the user to described new destination from described current sequence number position of playing frame and send this streaming media service by new selection terminal and/or person's access way, if receive the handover success notice that described adaptive controlled entity is transmitted, then interrupt continuing to before terminal and/access way transmits this streaming media service.
As shown in Figure 2, be the adaptive controlled entity data structure of embodiment of the invention schematic diagram.In embodiments of the present invention, the data structure of described adaptive controlled entity mainly comprises the data message of three aspects: user related information, streaming media service relevant information and user terminal information.
Wherein said user related information, the streaming media service of the order sign that comprises user name, password, user preference information and user, and, when if the user is visiting a certain streaming media service resource, also comprise this streaming media service sign and current sequence number of playing frame of this streaming media service.Affiliated user name, password are finished to described adaptive controlled entity registration by the user; Described user preference information can be finished to described adaptive controlled entity registration by the user, and can be by the service request of user's transmission, the user preference information that change has been registered; The current sequence number of playing frame of described streaming media service is to obtain by the cycle information that the user terminal of monitoring receiving stream media business is submitted; The described streaming media service sign ordered is to provide acquisition by the streaming media service supplier, particularly, after the user successfully orders one/a plurality of streaming media service from a streaming media service supplier, described streaming media service supplier can send to described adaptive controlled entity with the subscribe message that comprises the streaming media service sign of the streaming media service correspondence that user profile and described user successfully order, and described adaptive controlled entity says that monologue story-telling with gestures streaming media service sign is saved in the streaming media service of the order identification data information of user in the user related information of user profile correspondence.
Wherein said streaming media service relevant information comprises all sign and described streaming media service corresponding service QoS demands at the streaming media service that the streaming media service supplier identifies, described streaming media service supplier provides of the described controlled entity registration of excuse me, but I must be leaving now.Described streaming media service relevant information can be finished to described adaptive controlled entity registration by the streaming media service supplier.
Wherein said user terminal information comprises user terminal identification, the user terminal self performance information (type of service that can support of terminal for example, the transmitting power that terminal is current etc.) and the network performance information of described accessing user terminal to network (broadband for example, time delay, shake, packet loss and rate etc.), wherein, described user terminal identification is finished to described adaptive controlled entity registration by user terminal, the network performance information of described user terminal self performance information and the current access network of user terminal obtains by described adaptive controlled entity monitoring, i.e. obtaining in the cycle information that described adaptive controlled entity sends by this terminal periodic.
Describe the inventive method in detail below in conjunction with specific embodiment.
In embodiments of the present invention, with the user terminal of IP network PC terminal as requested service, the colleague user terminal that success has been registered in described adaptive controlled entity also has smart mobile phone (supporting the dual-mode terminal of WiFi and GSM) terminal.
As shown in Figure 3, be embodiment of the invention method step schematic flow sheet, this method mainly may further comprise the steps:
Step 301: the user thinks that by registered and current available user terminal A (the PC terminal of IP network) adaptive controlled entity sends streaming media service request Request_streamMedia, and this streaming media service request Request_streamMedia comprises the stream medium service information of the user profile and the streaming media service of asking; Wherein user profile comprises user name and password etc.; The stream medium service information of described request comprises the sign of this streaming media service etc.
Step 302: after adaptive controlled entity receives the streaming media service request of this user's transmission, carry out authentication according to user's information, i.e. this adaptive controlled entity inquiry from the user related information of preserving obtains the password of user name correspondence in this user profile, whether the password that judgement obtains from described controlled entity is identical with the password the described user profile, if, then authentication is passed through, if not then authentication is not passed through.In addition, method for authenticating in the step 302 and authentication condition are not unique, when obtaining higher safety assurance as if hope, can also utilize other safer and more effective authentication condition and method.
Step 303: when authentication is passed through, adaptive controlled entity determines according to described user profile and stream medium service information whether current streaming media service of asking is the streaming media service that this user has ordered, being adaptive controlled entity inquires about the streaming media service sign that the user has ordered in the user related information of user name correspondence in the user profile that adaptive controlled entity preserves according to described user profile, judge to have ordered and whether comprise in the streaming media service sign that the user asks the streaming media service sign that comprises in the stream medium service information, if comprise, determine that then this user has ordered the streaming media service of current request; Otherwise the user does not order current streaming media service of asking, and promptly the user does not have the streaming media service resource that the right visit is asked.
Step 304: when definite user has ordered current streaming media service of asking, the user related information that adaptive controlled entity is then preserved according to described user profile inquiry, determine this user's user terminal information and the user preference information that this user has ordered, and inquire about the streaming media service relevant information that adaptive controlled entity is preserved, the streaming media service sign that comprises in the stream medium service information according to the request streaming media service is determined this streaming media service corresponding service QoS demand, that utilizes adaptive controlled entity inside decides strategy protocol, according to described user preference information, user terminal information and the QoS of survice demand of being somebody's turn to do the streaming media service of request are analyzed and are determined the current optimum terminal and the access way (analyzing the result who determines in the embodiment of the invention is user terminal A) that can be used to this user to receive the streaming media service of asking.Wherein, described to have decided strategy protocol can be to take QoS of survice demand and user's request in the international norm into consideration, by the mathematical modeling method, and any high-efficient algorithm of acquisition.And,, can replace the algorithm that adopted with more advanced algorithm along with the development of algorithm.
Step 305: when adaptive controlled entity has been determined current can be used to optimum terminal that the user receives the streaming media service of asking and access way the time, adaptive controlled entity sends negotiation request Request_nego to initiating streaming media service requesting users terminal A, comprise described final suitable terminal and access way information among this negotiation request Request_nego, promptly whether be ready to use described optimum terminal and access way to receive the streaming media service of asking by this user of this negotiation request query.Described optimum terminal and access way message identification mode are not unique, can be literal expressions, can be expression yet, as long as can be understood by the user.
Step 306: the user confirms that by the user Request_nego sends to adaptive controlled entity with negotiation result, if promptly this user is ready that optimum terminal and the access way of using adaptive controlled entity to analyze receive the streaming media service of asking, then select " agreement " to confirm, otherwise, select " refusal " to confirm, pass on by property value nego among the Request_nego, nego=" 1 " agrees, nego=" 0 " expression " refusal ".
Step 307: the nego property value that receives when adaptive controlled entity is that the user of 1 Request_nego is when confirming, adaptive controlled entity sends the user to the corresponding streaming media service supplier of streaming media service sign who is asked and confirms to notify Notify_nego message, Notify_nego message comprises the sign (being the IP address of user terminal A in the embodiment of the invention) of described negotiation gained terminal and access way, and the stream medium service information of being asked, described stream medium service information comprises this streaming media service sign.
Step 308: when the streaming media service supplier receives after user that adaptive controlled entity sends confirms to notify Notify_nego message, according to the sign of described user terminal and access way and the stream medium service information of being asked, send the corresponding streaming media service of streaming media service sign in this stream medium service information to the destination of the sign correspondence of this user terminal and access way.
Step 309: after receiving the streaming media service of being asked when user terminal A, suitable controlled entity sends to receive successfully informs message Notify_OK, and the affirmation user has received streaming media service.
Step 310-0: in the streaming media service process of receiving stream media service supplier transmission, the registered available terminal of user, be that user terminal A and user terminal B periodically transmit cycle information Notify_Info to adaptive controlled entity, the current sequence number of playing frame of streaming media service that can comprise user terminal information, user preference information and described transmission in this Notify_Info message, also can comprise the information that user's active request is switched, comprise the user in this user terminal information.
Step 301-1: adaptive controlled entity is according to the current sequence number information of playing frame of the user terminal information that obtains among the Notify_Info, user preference information and streaming media service, the every change in information situation of comparative analysis, whether monitoring trigger event takes place, and upgrades the corresponding information content in the adaptive controlled entity internal information memory cell.
Step 311: if during the every change in information situation of comparative analysis, monitor the generation trigger event, trigger event is that the network quality of user terminal A access network seriously descends in the embodiment of the invention, adaptive controlled entity monitors described trigger event, adaptive controlled entity triggers the inside of self and has decided strategy protocol, determines that for the current streaming media service analysis of user continues as a suitable terminal and the access way that the user receives the streaming media service of current transmission again.
Step 312: adaptive controlled entity can go out the optimum terminal and the access way that can receive current streaming media service in the current available terminal for the user according to the step of step 304 again according to deciding strategy protocol for customer analysis.In the embodiment of the invention, the result of analysis is user terminal B, i.e. the intelligent mobile phone terminal that has succeeded in registration at adaptive controlled entity, and be that the WiFi of intelligent mobile phone terminal inserts.
Step 313: determining the WiFi access way of user terminal B by analysis when adaptive controlled entity is to accept the optimum terminal and the access way of current streaming media service, adaptive controlled entity says that the WiFi access way of the B that comprises user terminal and the handover negotiation optimization request Request_negoHO that the user can understand sign send to user terminal A (PC terminal), promptly take place before the trigger event, be the terminal of user's receiving stream media business.
Step 314: after user terminal A receives handover negotiation optimization request Request_negoHO, the user will be switched affirmation Response_negoHO by the user by the result that terminal A consults and be sent to adaptive controlled entity, if be ready that promptly optimum terminal and the access way of using adaptive controlled entity to analyze continue to receive this streaming media service, then select " agreement " to confirm, otherwise, select " refusal " to confirm, this is chosen among the Response_negoHO represents by the negoHO attribute, negoHO=" 1 " expression " agreement ", negoHO=" 0 " expression " refusal ".In the embodiment of the invention, the network quality of the IP network that inserts seriously descends, might can't respond this negotiation request, promptly surpass not response in the predefined stand-by period T of adaptive controlled entity, then adaptive controlled entity is given tacit consent to this user and has been agreed to receive the handoff request that receives current streaming media service by new terminal and/or the new access way of person (being the WiFi access way of user terminal B).
Step 315: adaptive controlled entity is received the Response_negoHO of the negoHO=" 1 " that user terminal A sends, determine that the user agrees to receive current streaming media service by terminal B, adaptive controlled entity is to user terminal B, send switching notice Notify_HO, notify the user current streaming media service can be switched to user terminal B.
Step 316: user terminal B sends the user to adaptive controlled entity and switches affirmation Response_negoHO, if the user is ready by user terminal B receiving stream media business, then selecting " agreement " to switch confirms, otherwise, then selecting " refusal " to switch confirms, this selection is represented by attribute handover, handover=" 1 " expression user agrees to accept current streaming media service by terminal B, and handover=" 0 " represents that then the user refuses to receive current streaming media service by user terminal B.
Step 317: the user who receives handover=" 1 " when adaptive controlled entity is switched when confirming Response_HO, adaptive controlled entity sends handoff request Request_HO to the streaming media service supplier of transmitting this streaming media service, this handoff request comprises the sign (this sign is the IP address of user terminal B in the embodiment of the invention) of user terminal B, this sign can be that the streaming media service supplier can be according to any sign of described sign inquiry counterpart terminal address, and this handover information also comprises the stream medium service information and the user profile of this streaming media service, just comprise in the described stream medium service information that described user profile comprises user name the sign of transmission stream media service and the current sequence number of playing frame (being the sequence number of the streaming media service frame watched before the user is switched).
Step 318: when the streaming media service supplier receives handoff request Request_HO, the streaming media service supplier then according to the associated transport information of the current described streaming media service that provides for this user of user profile and stream medium service information inquiry, continues to transmit this streaming media service to user terminal B for the user from the current position of playing the number of frames correspondence of this streaming media service.
Step 319: after user terminal B receives described streaming media switch business, send handover success to adaptive controlled entity and inform message Notify_HOOK, confirm that the user has received streaming media service.
Step 320: adaptive controlled entity receives after handover success that user terminal B sends informs message Notify_HOOK, adaptive controlled entity sends Notify_STOP to the streaming media service supplier, inform that the user successfully receives streaming media service by user terminal B, can stop to continue to send this streaming media service to original user terminal A.
Step 321: receive the Notify_STOP of this streaming media service as the streaming media service supplier after, the streaming media service supplier stops the terminal to original receiving stream media business, and promptly user terminal A continues transmission stream media service.
In the above embodiment of the invention step, the step that belongs to A part realizes selecting the terminal and the access way that suit for the user according to the QoS of survice demand of the user's request and the streaming media service of asking when user's initial request access stream media business resource; The included step of B part the user by a certain terminal just when receiving stream media is professional, realize cycle information and user profile that all current terminals that succeeded in registration at this adaptive controlled entity are submitted are monitored collection; The step that comprises in the C part is when B partly monitors trigger event, and that just can carry out is the streaming media service of the current reception of user adaptive terminal and access way again, and this streaming media service is switched to new terminal and/or person's access way; In case switch and to finish, can jump to B automatically and partly continue supervisory user information and all and registered the cycle information that this user user terminal is submitted at this adaptive controlled entity.
Description based on aforementioned system and method step to the embodiment of the invention, the embodiment of the invention also provides a kind of adaptive controlled entity, as shown in Figure 4, this adaptive controlled entity comprises monitoring collector unit 1 and adaptive selected cell 2, wherein monitors collector unit 1 and is used for collecting, monitors and storage user related information, user terminal information and streaming media service relevant information.Adaptive selected cell 2 is used to receive the request of user's streaming media service, this user is carried out authentication, determine the streaming media service authority of this user to affiliated streaming media service, utilize the inner strategy protocol of deciding, current optimum terminal and the access way that receives the streaming media service of being asked for the user determined in analysis, with terminal and the access way that the user consults to receive the streaming media service of asking, notice respective streams media business supplier is transmitted this streaming media service to the user; And when monitoring collector unit 1 monitors trigger event, consult new optimum terminal and access way for the user reselects, notification streams media business supplier continues as the user and transmits this streaming media service.
Authentication collector unit 1 comprises: user registration/cancel unit 11, endpoint registration/cancellation unit 12, streaming media service registration/cancellation unit 13, monitoring unit 14 and information memory cell 15, wherein, user registration/cancel unit 11 is used for registration/logging off users relevant information user name, password and user preference information; Endpoint registration/cancellation unit 12 is used for registering/terminal iidentification of logging off users end message; Streaming media service registration/cancellation unit 13 is used for registration/cancellation streaming media service relevant information; Monitoring power supply 14 is used for the network performance information of the user terminal performance information of supervisory user end message, the current access network of described user terminal, if user terminal, then also comprises the current sequence number of playing frame of this streaming media service just in the receiving stream media business; Information memory cell 15 is used for storing user's registered/cancellation unit 11, endpoint registration/cancellation unit 12, streaming media service registration/cancellation unit 13 and control unit 14 obtains user related information, user terminal information and streaming media service relevant informations, and the user who comprises in the subscribe message that sends of the streaming media service supplier that receives of storage receiving element 21 has ordered the streaming media service sign.
Adaptive selected cell 2 comprises: receiving element 21, authenticating unit 22, search unit 23, policy unit 24, negotiation element 25 and transmitting element 26, wherein receiving element 21 is used to receive the subscribe message that the user sends hungry service request and streaming media service supplier transmission, described service request comprises user profile and stream medium service information, and described subscribe message comprises user profile and ordered the streaming media service sign; Authenticating unit 22 is used for according to the user profile that the service request that described user sends comprises this user being carried out authentication, if authentication is passed through, then triggers and searches unit 23; Search unit 23 and be used for the user profile and the stream medium service information that comprise according to described service request, ordered the streaming media service sign by the user in the pairing streaming media service relevant information of user name in this user profile in the Query Information memory cell 15, if described the order comprises the streaming media service sign that comprises in the described stream medium service information in the streaming media service sign, then if determine the streaming media service that the streaming media service of active user's request has been ordered for the user, then the trigger policy unit 24; Policy unit 24 is used for user related information, user terminal information and the streaming media service relevant information according to described user profile Query Information memory cell 15 preservations, that utilizes adaptive controlled entity inside decides strategy protocol, QoS of survice demand according to the user preference information in the described user related information, user terminal information and this streaming media service of asking, if analyze and determine the current optimum terminal and the access way that can be used to the user to receive the streaming media service of asking (or the streaming media service that is transmitting), then trigger negotiation element 25; Optimum terminal and access way that negotiation element 25 is used for consulting to obtain by policy unit 24 with the user are transmitted the streaming media service of being asked to the user, if negotiation element 25 receives reception and successfully informs message, then determine to finish once and consult, otherwise other available relatively more suitable terminal and access way is selected for the user again in trigger policy unit 24 again; Negotiation element 25 can also be used in the streaming media service transmission course, when monitoring unit 14 monitors trigger event, trigger policy unit 24 is finished again for after suitable terminal of user's current business selection and the access way, carry out handover negotiation optimization with the user, if negotiation element 25 receives the handover success message that the user sends, then determine to finish handover negotiation optimization one time, otherwise other available relatively more suitable terminal and access way is selected for the user again in trigger policy unit 24 again; Transmitting element 26 is used for sending message to the streaming media service supplier, comprise that the user confirms notice, handoff request and handover success notice, wherein the user confirm to notify and handoff request message in comprise the sign of terminal and access way, also comprise in the handoff request when close received streaming media business information, the sign of this terminal and access way is to consult the terminal of definite receiving stream media business and the sign of access way, can determine the destination of this streaming media service transmission by the sign of this terminal and access way, sequence number by the current broadcast frame in the current received streaming media business information is as the starting position of continuing transmission, thereby the continuous broadcast that keeps this streaming media service, the handover success notification message also comprises the sign of a terminal and access way simultaneously, this sign is to receive the terminal of this streaming media service and the sign of access way before trigger event takes place, and the streaming media service supplier cancels continuation and continues transmission stream media service to the corresponding destination of this sign.
Description by the embodiment of the invention, can be that the user is when using streaming media service, according to the user preference information of self setting, the QoS demand of this streaming media service and the user terminal information of the registered current available terminal of user (comprising that terminal self performance information and this terminal count the network of network performance information), the current optimum terminal and the access way that can receive this streaming media service for the user determined in analysis, provide this streaming media service by the terminal and the access way of consulting to determine with the user to the user, satisfy user's demand and can guarantee quality of service preferably, make the user experience good.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs in the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.

Claims (24)

1. a method that realizes streaming media service is characterized in that, this method comprises:
Adaptive controlled entity receives the streaming media service request that the user sends, and this request comprises the stream medium service information of the user profile and the streaming media service of asking, and described adaptive controlled entity carries out authentication according to described user profile to this user;
If authentication passes through, described adaptive controlled entity according to described user profile and stream medium service information determine the streaming media service of asking whether be the streaming media service that this user has ordered;
If ask streaming media service to order for this user streaming media service, according to described user profile and stream medium service information, by utilizing described adaptive controlled entity inside to decide strategy protocol, determine the current suitable terminal and the access way that can be used to the user to receive the streaming media service of asking;
Described adaptive controlled entity and this user consult to receive for the user terminal and the access way of described request streaming media service;
After described adaptive controlled entity receives user's confirmation of this user, the user that will comprise the sign of the terminal of consulting to determine with this user and access way confirms that notification message sends to the streaming media service supplier of the streaming media service that this request is provided, after this streaming media service supplier received described sign, the user terminal of determining to this sign according to the access way of determining in the described sign transmitted the streaming media service of asking;
In the described streaming media service transmission course, the cycle information of this terminal that described adaptive controlled entity is periodically submitted according to described user terminal, upgrade the relevant information of having preserved, comprise the user terminal information and the current sequence number of playing frame of described streaming media service of described terminal in this cycle information;
If in the process of this streaming media service of transmission, described adaptive controlled entity monitors and influences that this streaming media service can't continue to meet consumers' demand and the trigger event of QoS of survice demand transmission takes place, then can trigger again adaptively, promptly described adaptive controlled entity can be determined the current optimum terminal and the access way that can continue to receive this streaming media service for this user for this customer analysis again;
If the result of described adaptive controlled entity analysis of strategies is not current terminal and/or the person's access way that is receiving this streaming media service, then described adaptive controlled entity is finished the negotiation with the user again;
Adaptive controlled entity guarantees under the successional situation of described streaming media service according to the new terminal that consult to obtain and the sign of access way, and the streaming media service of current transmission is switched to new terminal and/or access way.
2. method according to claim 1 is characterized in that, described adaptive controlled entity carries out authentication according to user profile to this user and comprises:
Adaptive controlled entity is used for inquiring about this user related information that described adaptive controlled entity is preserved according to the described user profile that receives, and imposes a condition if the result of inquiry satisfies, and then authentication is passed through;
Described user profile comprises username and password, then described impose a condition into: the user cipher that inquiry obtains in the user related information of the user name correspondence that described adaptive controlled entity is preserved is identical with the password in the described user profile.
3. method according to claim 1 is characterized in that, described adaptive controlled entity determines that according to described user profile and stream medium service information the streaming media service of current request is that the streaming media service that described user has ordered comprises:
Described adaptive controlled entity has been ordered the streaming media service sign according to the user of the user profile correspondence that described user profile inquiry self is preserved, judge whether described the order comprises in the streaming media service sign that the streaming media service that comprises in the described stream medium service information identifies, if comprise, determine that then this user has ordered the streaming media service of described stream medium service information correspondence.
4. method according to claim 1, it is characterized in that, described adaptive controlled entity utilizes the inner strategy protocol of deciding, according to described user profile and stream medium service information, determines that the current suitable terminal and the access way that can be used to the user to receive the streaming media service of asking comprises:
Determine the user terminal information of the current available terminal of this user and the user preference information that this user has ordered according to described user profile, and determine the QoS of survice demand of the streaming media service of this request according to the stream medium service information of described request, that utilizes this adaptive controlled entity inside decides strategy protocol, according to the QoS of survice demand of described user preference information, described user terminal information and this streaming media service of asking, analyze and determine the current optimum terminal and the access way that can be used to the user to receive the streaming media service of asking.
5. method according to claim 1 is characterized in that, described adaptive controlled entity and user consult and will comprise for terminal and the access way that the user receives the streaming media service of described request:
Described adaptive controlled entity comprises described inside to the user terminal transmission and has set the optimum terminal of strategy protocol acquisition and the negotiation request of access way information, this terminal and access way be current can by the user receive the optimum terminal and the access way of request streaming media service, if the user receives with described optimum terminal and access way and receives the streaming media service of being asked, then sending user's " agreement " to described adaptive controlled entity determines, otherwise, send user's " refusal " to this adaptive controlled entity and confirm; If user refusal, then described adaptive controlled entity then will be used to continue to consult other can by the user receive the terminal and the access way of request streaming media service.
6. method according to claim 1 is characterized in that described adaptive controlled entity can also be used for the cycle information of supervisory user information and user terminal, and comprises according to the inner related content of preserving of this adaptive controlled entity of information content renewal:
The user can by and any terminal of succeeding in registration send user preference to this adaptive controlled entity and select, promptly according to the user preference information in the inner user related information of preserving of described this adaptive controlled entity of user preference selection renewal, described user preference information comprises which terminal receiving stream media business user priority selects, perhaps the user always selects by the minimum access network receiving stream media business of rate, and can influence the factor that terminal and access way are selected during other the access stream media business resources that can be understood by the user experience perception; In addition, described adaptive controlled entity is understood the cycle information that all user terminals that succeeded in registration at this adaptive controlled entity are submitted that receives in cycle, it is each time T, user terminal can think that this adaptive controlled entity submission comprises user terminal self performance information and the current access network performance information of this terminal, if terminal is just when receiving stream media is professional, also comprise the current sequence number of playing frame of this streaming media service in the described cycle information, described adaptive controlled entity is saved in the described information updating that receives in the information content of this information project correspondence in this adaptive controlled entity.
7. method according to claim 1 is characterized in that adaptive controlled entity can also be after monitoring trigger event, for the adaptive optimum terminal of the current streaming media service that is transmitting and access way comprise:
After described adaptive controlled entity receives described user profile and/or cycle information, at first, with this information be stored in this adaptive controlled entity in the corresponding last update content of this information project compare, if comparative result meets the trigger event condition, then trigger described adaptive controlled entity and be the adaptive selection terminal of streaming media service and the access way of current reception again, again the described information updating that receives is saved in the information content of this information project correspondence in the described adaptive controlled entity, otherwise, directly the described information updating that receives is saved in the information content of this information project correspondence in the described adaptive controlled entity; Wherein, described trigger event condition is adaptive selection terminal and access way influence degree and the variation threshold value set when to be this trigger event for user's receiving stream media professional, surpassed the variation threshold value if monitor the information change value that user terminal submits, then can trigger again adaptively, otherwise only upgrade preserve the described information that monitors; Described is the adaptive selection terminal of streaming media service and the access way of current reception again, be that this adaptive controlled entity utilizes the inner strategy protocol of deciding again, according to the QoS of survice demand of the user preference information in the described user profile, user terminal information and the streaming media service of asking, determine the optimum terminal and the access way that can continue to receive this streaming media service for customer analysis again for the user.
8. method according to claim 1 is characterized in that, described trigger event comprises:
The described information of having decided the result of calculation of strategy protocol of meeting influence that described adaptive controlled entity monitors, described trigger event comprises the change of user related information and/or user terminal information, comprise user preference information in the user related information, user terminal information comprises the network performance information of user terminal self performance information and the current access network of user terminal.
9. method according to claim 1, it is characterized in that, described adaptive controlled entity basis and the new terminal of consulting to obtain and the sign of access way, guarantee under the successional situation of described streaming media service, the streaming media service of current transmission switched to new terminal and/or access way comprises:
If described adaptive controlled entity monitors trigger event, and this trigger event triggers and utilizes again that to have decided the definite result of strategy protocol analysis be not current terminal and/or the person's access way that is receiving this streaming media service, and then this adaptive controlled entity is finished the negotiation with the user again; If consult successfully, described adaptive controlled entity then sends switching notice to terminal of reselecting and access way; Agree that the user of switching confirms if receive, then this adaptive controlled entity sends to handoff request the streaming media service supplier of this streaming media service, this handoff request comprises the terminal and the access way sign of the new adaptive selection of user, streaming media service sign and the current sequence number of playing frame of this streaming media service that the user receives, when on behalf of described adaptive controlled entity, described sequence number monitor trigger event, the current frame position of playing this streaming media service of user that monitoring and renewal are preserved, the supplier of described streaming media service is according to the current sequence number of playing frame, begins to continue as the user from the position of this sequence number correspondence and sends this streaming media service by new selection terminal and/or person's access way.
10. a system that realizes streaming media service is characterized in that, this system comprises: user terminal, adaptive controlled entity and streaming media service supplier, wherein,
Described user terminal, it is the terminal that the user has registered at described adaptive controlled entity, be used for the user terminal information of this user terminal is periodically reported to described adaptive controlled entity, and be used for the streaming media service request is sent to described adaptive controlled entity, this request comprises the stream medium service information and the user profile of being asked;
Described adaptive controlled entity, be used for according to user preference information, user terminal information and streaming media service relevant information, utilize described adaptive controlled entity inside decided the strategy protocol analysis determine to go out can by this user receive the optimum terminal and the access way of request streaming media service, and consult to obtain terminal and the access way adaptive with the user, will comprise the sign of described optimum terminal and access way and the message of current playing stream media business information then and send to described streaming media service supplier with current streaming media service;
Described streaming media service supplier is used to the user that streaming media service is provided, and is used to described adaptive controlled entity that the streaming media service relevant information is provided.
11. system according to claim 10 is characterized in that,
Described user terminal, it is the terminal that the user has registered at described adaptive controlled entity, be used for the streaming media service request is sent to described adaptive controlled entity, this request comprises the stream medium service information and the user profile of being asked, and it is professional and the cycle information of this user terminal periodically reported to described adaptive controlled entity to be used for receiving stream media, described cycle information comprises the user terminal information of this user terminal, if this terminal just in the receiving stream media business, also comprises the current sequence number of playing frame of described streaming media service in the then described cycle information.
12., it is characterized in that described user terminal comprises fixed terminal, the portable terminal of supporting streaming media service and supports fixing and mobile fixing/mobile multimode terminal that inserts simultaneously according to claim 10 or 11 described systems; Described fixed terminal inserts fixed access network, and described portable terminal inserts mobile Access Network, and described fixing/mobile multimode terminal inserts described fixed access network and mobile Access Network respectively.
13. system according to claim 11 is characterized in that,
Described adaptive controlled entity is used for inquiring about according to the described user profile that receives this user's of described adaptive controlled entity preservation user related information, imposes a condition if the result of inquiry satisfies, and then authentication is passed through.
14. system according to claim 11 is characterized in that,
Adaptive controlled entity can also be used for determining according to described user profile and stream medium service information this user's streaming media service authority, the streaming media service that even described user has ordered comprises user's current business, then determine the streaming media service that current business has been ordered for the user, the user has the authority of this streaming media service resource of visit.
15. system according to claim 11 is characterized in that,
Described adaptive controlled entity can also be used for according to described user profile and stream medium service information, by utilizing the fixed strategy protocol in described adaptive controlled entity inside, determine currently can be used to the user to receive the streaming media service of asking/or the suitable terminal and the access way of the streaming media service that transmitting.
16. system according to claim 11 is characterized in that,
Described adaptive controlled entity can also be used for consulting and will receiving described request/or the terminal and the access way of the streaming media service of the streaming media service that transmitting for the user with the user.
17. system according to claim 11 is characterized in that,
Described adaptive controlled entity can also be used for monitoring and be used for information and cycle information, and triggers adaptive again optimum terminal of streaming media service and access way for transmitting.
18. system according to claim 11 is characterized in that,
Described adaptive controlled entity can also be used for guaranteeing under the successional situation of described streaming media service according to the new terminal of consulting to obtain with the user and the sign of access way, and the streaming media service of current transmission is switched to new terminal and/or person's access way.
19. system according to claim 11 is characterized in that,
The streaming media service that described streaming media service supplier can be asked to user's transmission user according to user profile and stream medium service information.
20. system according to claim 11 is characterized in that,
Described streaming media service supplier can also send subscribe message to adaptive controlled entity, and this message comprises the streaming media service sign that user profile and user order in the success of this streaming media service supplier place.
21. system according to claim 11 is characterized in that,
The streaming media service supplier can also guarantee under the successional situation of streaming media service the streaming media service that transmits to the user to be switched to new terminal and/or person's access way according to described adaptive controlled entity handoff request.
22. an adaptive controlled entity is characterized in that, this adaptive controlled entity comprises: monitoring collector unit and adaptive selected cell, wherein,
Described monitoring collector unit is used for collecting, monitors and storage user related information, user terminal information and streaming media service relevant information;
Described adaptive selected cell is used to receive the request of user's streaming media service, this user is carried out authentication, determine whether this user has ordered the streaming media service of asking, utilize the inner strategy protocol of deciding, the current optimum terminal and the access way that can receive the streaming media service of being asked for the user determined in analysis, consult the terminal and the access way of receiving stream media business with the user, notification streams media business supplier is transmitted this streaming media service to the user; And if described adaptive controlled entity monitors trigger event in this streaming media service transmission course, can and consult new optimum terminal and access way for the adaptive again selection of this user, notification streams media business supplier switches to the streaming media service of current transmission again the optimum terminal and the access way of consulting to obtain with the user, the transmission that terminal is original continues as the user and transmits this streaming media service.
23. adaptive controlled entity according to claim 22, it is characterized in that, described monitoring collector unit comprises: user registration/cancel unit, endpoint registration/cancellation unit, streaming media service registration/cancellation unit, monitoring unit and information memory cell, wherein
The user registration/cancel unit is used for registration/logging off users relevant information user name, password and user preference information;
Endpoint registration/cancellation unit is used for registering/terminal iidentification of logging off users end message;
Streaming media service registration/cancellation unit is used for registration/cancellation streaming media service relevant information;
Monitoring unit is used for the user terminal performance information of supervisory user end message and the network performance information of the current access network of described user terminal, if user terminal, then also comprises the current sequence number of playing frame of this streaming media service just in the receiving stream media business;
User related information, user terminal information and streaming media service relevant information that information memory cell user storage user registration/cancel unit, endpoint registration/cancellation unit, streaming media service registration/cancellation unit and monitoring unit obtain, and the user who comprises in the subscribe message that sends of the streaming media service supplier that receives of storage receiving element has ordered the streaming media service sign.
24., it is characterized in that adaptive selected cell comprises according to the described adaptive controlled entity of claim 23: receiving element, authenticating unit, search unit, policy unit, negotiation element and transmitting element,
Wherein,
Receiving element is used to receive the service request of user's transmission and the subscribe message that the streaming media service supplier sends, and described service request comprises user profile and stream medium service information, and described subscribe message comprises user profile and ordered the streaming media service sign;
Authenticating unit is used for according to the user profile that the service request that described user sends comprises this user being carried out authentication, if authentication is passed through, then triggers and searches the unit;
Search the unit and be used for the user profile and the stream medium service information that comprise according to described service request, ordered the streaming media service sign by the user in the pairing streaming media service relevant information of user name in this user profile in the Query Information memory cell, if described the order comprises the streaming media service sign that comprises in the described stream medium service information in the streaming media service sign, then if determine the streaming media service that the streaming media service of active user's request has been ordered for the user, then trigger policy unit;
Policy unit is used for user related information, user terminal information and the streaming media service relevant information of preserving according to described user profile Query Information memory cell, that utilizes adaptive controlled entity inside decides strategy protocol, QoS of survice demand according to the user preference information in the described user related information, user terminal information and this streaming media service of asking, currently can be used to the user to receive the streaming media service of asking/or the optimum terminal and the access way of the streaming media service that transmitting if analyze to determine, then trigger negotiation element;
Optimum terminal and access way that negotiation element is used for consulting to obtain by policy unit with the user are transmitted the streaming media service of being asked to the user, if negotiation element receives reception and successfully informs message, then determine to finish once and consult, otherwise the policy unit of setting out is again selected other available relatively more suitable terminal and access way for the user again; Negotiation element also is used in the streaming media service transmission course, when monitoring unit monitors trigger event, the trigger policy unit is finished again for after suitable terminal of user's current business selection and the access way, carry out handover negotiation optimization with the user, if negotiation element receives the handover success message that the user sends, then determine to finish handover negotiation optimization one time, otherwise the policy unit of setting out is again learned then other available relatively more suitable terminal and access way for the user again;
Transmitting element is used for sending message to the streaming media service supplier, comprise that the user determines notice, handoff request and handover success notice, wherein the user confirm to notify and handoff request message in comprise the sign of terminal and access way, also comprise current received streaming media business information in the handoff request, the sign of this terminal and access way is to consult the terminal of definite receiving stream media business and the sign of access way, can determine the destination of this streaming media service transmission by the sign of this terminal and access way, sequence number by the current broadcast frame in the current received streaming media business information is as the starting position of continuing transmission, thereby the continuous broadcast that keeps this streaming media service, the handover success notification message also comprises the sign of a terminal and access way simultaneously, this sign is to receive the terminal of this streaming media service and the sign of access way before trigger event takes place, and the streaming media service supplier cancels continuation and continues transmission stream media service to the corresponding destination of this sign.
CN2008101146058A 2008-06-10 2008-06-10 Method, system and device for realizing stream media service Expired - Fee Related CN101287014B (en)

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