CN100459557C - Method and system for realizing multimedia broadcast serice in small zone - Google Patents
Method and system for realizing multimedia broadcast serice in small zone Download PDFInfo
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Abstract
The present invention provides method and system for realizing cell multimedia broadcasting service. It contains data source server transmitting stream media business data to wireless access network controller in unicast form, and wireless access network transmitting stream media business data to user terminal in broadcast form. Wireless access network transmits unicast request message to data source; data source server feeding back stream media business data to wireless access network. When user makes cell multimedia broadcasting service (CMB), wireless access network transmits stream media business data to pre-defined channel used for CMB service, user terminal receiving stream media business data from channel used for CMB service. Using said invented scheme, data source server can only send one business data to wireless access network; wireless access network only send one business data to channel used for CMB service, greatly saving transmitting resource and air interface resource.
Description
Technical field
The present invention relates to mobile communication technology, particularly relate to a kind of method and system that realize cell multimedia broadcasting service.
Background technology
Along with the development of mobile communication technology, operator not only can provide common voice and short message service to the mobile subscriber by mobile communication system, and multimedia short message service, visual telephone service and packet-switched domain video stream traffic etc. can also be provided.
Along with popularizing of large-screen multi-functional mobile phone and developing rapidly of mobile data services, streaming media service has become the important business opportunity that operator's next one is seized market.At present, in mobile networks such as GPRS (GPRS) network, Wideband Code Division Multiple Access (WCDMA) (WCDMA) network, code division multiple access (CDMA) network or personal handyphone system (PHS) network, the general point-to-point transmission data technique that adopts is realized streaming media service, as mobile phone TV services.Be the characteristics that example illustrates the point-to-point transmission technology with WCDMA network 3GPPR99 below:
The scheme that the R99 version of WCDMA network utilisation third generation partner program (3GPP, 3rd GenerationPartnership Project) proposes realizes the point-to-point transmission business, i.e. the packet-switched domain video stream traffic.Fig. 1 has shown that 3G R99 version scheme realizes the basic networking diagram of packet-switched domain video stream traffic.As shown in Figure 1, this basic networking diagram comprises at least: subscriber equipment (UE, User Equipment), wireless access network (RAN, Radio Access Network), core net (CN, Core Network), streaming media server (PSS).The key that realizes the packet-switched domain video stream traffic is to set up dedicated channel between UE and RAN, sets up special I P data transmission channel between RAN and PSS, sets up the dedicated transmission channel that is used for the streaming media service data thus between UE and PSS.When the mobile subscriber will watch flow-medium performance, UE sent playing request message by RAN and CN to PSS; RAN and CN set up special-purpose data transmission channel between UE and PSS, and the attribute informations such as IP address, port numbers, speed and coded format of transfer of data are sent to UE; PSS sends to UE with the streaming media service data by the dedicated transmission channel of setting up again, and UE just can carry out video playback according to attribute information decoded stream media business data.Wherein, UE is exactly the user terminal in the mobile communication, and PSS is then for providing the data source server of business datum, and the radio network controller among the RAN (UTRAN) is responsible for the foundation and the forwarding of data of channel, is the kernel entity of RAN.In different mobile communications networks, access network controller may be different.Such as: in GPRS network, access network controller is base station controller (BSC, Base Station Controller); In cdma network, access network controller is CDMA base controller (CBSC, CDMA Base Station Controller); In the PHS network, access network controller is PHS base station etc.Though in different networks, the address difference of access network controller, its function is similar in network configuration.
Though the Point-to-Point Data Transmission technology can realize streaming media service, but owing to need need to set up designated lane between the user terminal of receiving stream media business datum and the data source server at each, cause interface-free resources and transfer resource to be taken in a large number, influence in this sub-district other user's communications business and normally carry out, be unfavorable for the popularization and the use of streaming media service.
At present, 3GPP R6 version proposes a kind of realization BroadCast MultiCast Service (MBMS, MultimediaBroadcast Multicast Service) scheme, in this scheme, wireless network can provide the transmission bearer that a little arrives multiple spot, can solve the problem that stream medium data too much takies transfer resource and interface-free resources.But, the MBMS consensus standard need just can be achieved on the R6 network, promptly need to increase broadcast multi-broadcasting-service center (BM-SC), need simultaneously RAN, CN and UE upgraded and support BroadCast MultiCast Service controlling and manage based on the BroadCast MultiCast Service of MBMS standard.Because it is ripe not enough before the MBMS standard mesh, transform existing network as the R6 network and also need a large amount of work, therefore the BroadCast MultiCast Service based on the MBMS standard implements more complicated, a lot of present unforeseen difficulties are arranged, be unfavorable on existing mobile communication network, promoting streaming media service.
This shows in the prior art, also do not have a kind ofly to need not to carry out big change and just can on the basis of existing mobile communication network, realize some the multiple spot data transmission service, promptly realize the method and system of cell multimedia broadcasting service.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method that realizes cell multimedia broadcasting service, and this method can realize a little arriving the streaming media service of the transfer of data of multiple spot on the basis of existing mobile communication network.At the method that the present invention proposes, the present invention also proposes a kind of system that can realize cell multimedia broadcasting service.In order to achieve the above object, the technical scheme of the present invention's proposition is:
A kind of method that realizes cell multimedia broadcasting service, data source server sends to wireless access network with the streaming media service data, and in the time will carrying out cell multimedia broadcast CMB business, this method may further comprise the steps:
A, wireless access network forward the streaming media service data from the channel that is used for the CMB business;
B, user terminal obtain the streaming media service data from the channel that is used for the CMB business.
Preferably, described step b is:
B1, user terminal send playing request message to wireless access network;
B2, wireless access network authenticate user terminal, and judge whether to contract according to authentication result, if then return the broadcast response message; Otherwise, withdraw from this flow process;
B3, user terminal obtain the streaming media service data according to playing response message from the channel that is used for the CMB business again.
Preferably, the described wireless access network of step b2 to the method that described user terminal authenticates is:
Wireless access network sends the authentication request message of the user ID carry prior acquisition to authentication center, and authentication center authenticates user terminal according to user ID, and the authentication response message that will carry authentication result returns to wireless access network.
Preferably, further comprise before the described step a:
X1, user terminal send playing request message to wireless access network;
X2, wireless access network judge that whether described user terminal is user of first request receiving stream media business datum, if, execution in step a then; Otherwise, execution in step b.
Preferably, further comprise between described step x1 and the step x2:
Wireless access network authenticates user terminal, and judges whether to contract according to authentication result, if then return the broadcast response message; Otherwise, withdraw from this flow process.
Preferably, described wireless access network to the method that user terminal authenticates is:
Wireless access network sends the authentication request message of the user ID that carries prior acquisition to authentication center, authentication center authenticates user terminal according to user ID, and judge whether user terminal is signatory, if, then to wireless access network return authentication success response message; Otherwise, return authentication failure response message.
Preferably, further comprise between described step a and the step b:
Wireless access network sends charging request message to the charging center, and charge response message is returned to wireless access network in the charging center, and begins to charge according to the charging way that sets in advance.
Preferably, the described charging way that sets in advance is: monthly payment charging way, the mode of charging by flow or mode charged according to time.
Preferably, described user terminal is the user terminal that obtains streaming media service data content sign in advance;
The described playing request message of step x1 is the playing request message that carries streaming media service data content sign;
Described authentication request message is the authentication request message that carries streaming media service data content sign;
The described method of judging whether user terminal has contracted is: whether signatory streaming media service data content identifies pairing streaming media service data to judge user terminal.
Preferably, described user terminal obtains the method for streaming media service data content sign in advance and is:
User terminal sends browse request message to terminal use's portal server EU-Portal, EU-Portal returns the browse request response message that includes streaming media service data content sign, and user terminal obtains streaming media service data content sign according to the browse request response message.
Preferably, described user terminal obtains the method for streaming media service data content sign in advance and is:
Wireless server OTA sends to user terminal by the renewal program bookmarking message that SMS service center SMSC will carry streaming media service data content sign, and user terminal obtains the business datum content identification according to upgrading program bookmarking message.
Preferably, described data source server with the method that the streaming media service data send to wireless access network is:
Wireless access network sends unitcast request message to data source server, and data source server returns to wireless access network with streaming media service data and attribute information thereof.
Preferably, when user terminal finished the CMB business, this method further may further comprise the steps:
A, user terminal send to wireless access network and discharge request message;
B, wireless access network judge that whether user terminal is user that last request finishes the CMB business in the sub-district, place, if, execution in step C then; Otherwise, execution in step D;
C, wireless access network stop to transmit data to user terminal place district common channel, and discharge interface-free resources;
D, wireless access network return to user terminal and discharge successful response message.
Another goal of the invention of the present invention is achieved in that
A kind of system that realizes cell multimedia broadcasting service, this system comprises at least: data source server, wireless access network, user terminal;
It is characterized in that wireless access network is further used for and will forwards from the channel that is used to transmit cell multimedia broadcast CMB business from the streaming media service data of data source server;
User terminal is further used for obtaining the streaming media service data from the channel that is used for the CMB business.
Preferably, this system further comprises:
Authentication center is used to receive the authentication request message that is sent by wireless access network, according to authentication request message the user is authenticated, and authentication response message is returned to wireless access network.
Preferably, this system further comprises:
The charging center is used to receive the charging request message that is sent by wireless access network, according to charging request message the user is chargeed, and charge response message is returned to wireless access network.
Preferably, this system further comprises:
Universal grouping wireless business supporting node GSN is used for the mutual of information between wireless access network and the data source server, also be used for wireless access network and authentication center and charging center information alternately.
Preferably, described GSN comprises:
Service universal grouping wireless business supporting node SGSN and ggsn GGSN;
Wherein, SGSN links to each other with wireless access network, and SGSN links to each other with GGSN, and SGSN or GGSN link to each other with data source server, and SGSN links to each other with the charging center with authentication center;
This system further comprises:
EU-Portal, be used to receive the browse request message that sends by wireless access network, SGSN, GGSN by user terminal, and the browse response message that will carry streaming media service data content sign returns to user terminal by GGSN, SGSN and wireless access network.
Preferably, described GSN comprises:
SGSN and GGSN, wherein, SGSN links to each other with wireless access network, and SGSN links to each other with GGSN, and SGSN or GGSN link to each other with data source server, and SGSN links to each other with the charging center with authentication center;
This system further comprises:
OTA is used for sending the renewal program bookmarking message that carries streaming media service data content sign to SMSC;
SMSC, the renewal program bookmarking message conversion that is used for being sent by OTA is a short message, and short message is sent user terminal.
Preferably, described data source server is streaming media server PSS.
In sum, a kind of method and system that realize that cell multimedia broadcast (CMB) is professional that the present invention proposes, data source server adopts the form of clean culture that the streaming media service data are sent to wireless access network, and wireless access network is given the streaming media service data forwarding channel that is used for the CMB business, user terminal obtains the streaming media service data from the channel that is used for the CMB business again, and promptly wireless access network adopts the form of broadcasting that the streaming media service data that receive are sent to user terminal.So, in the present invention, data source server only need send a streaming media service data to wireless access network, wireless access network also only need be transmitted a streaming media service data to being used for the CMB Traffic Channel, and the user terminal of a plurality of request streaming media service data can obtain the streaming media service data from the same channel that is used for the CMB business in the sub-district, thereby can realize a little arriving the data transmission service of multiple spot, save transfer resource and interface-free resources greatly.
Description of drawings
Fig. 1 is typical unicast service networking structure figure in the prior art;
Fig. 2 is the present invention program's a flow chart;
Fig. 3 is a flow chart of using the present invention program's method embodiment one;
Fig. 4 is a flow chart of using the present invention program's method embodiment two;
Fig. 5 is a flow chart of using the present invention program's method embodiment three;
Fig. 6 is a basic networking diagram of using the present invention program's system embodiment one;
Fig. 7 is a basic networking diagram of using the present invention program's system embodiment two.
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 the accompanying drawings and the specific embodiments.
Basic thought of the present invention is: set up designated lane between wireless access network and data source server, data source server sends to wireless access network by designated lane with the form of clean culture with the streaming media service data, and the wireless access net controller is set up the channel that is used for the CMB business between self and user terminal, and the streaming media service data that receive are forwarded from the channel that is used for the CMB business, the user terminal of request receiving stream media business datum can be from receiving stream media business datum on the channel that is used for the CMB business.
Fig. 2 has shown the flow chart of realizing the present invention program.As shown in Figure 2, the present invention realizes that cell multimedia broadcasting service may further comprise the steps:
Step 201: data source server sends to wireless access network with the streaming media service data.
In the present invention, wireless access network needs to set up designated lane with data source server earlier, and data source server sends to wireless access network by designated lane with the streaming media service data then.
Step 202: wireless access network forwards the channel of streaming media service data from the pre-determined CMB of being used for business.
Step 203: user terminal obtains the streaming media service data from the channel that is used for the CMB business.
In the present invention, wireless access network can send to user terminal with the streaming media service data by dual mode:
A kind of mode is: wireless access network receive send to the stream medium data of self from data source server after, just the channel of streaming media service from the pre-determined CMB of being used for business forwarded; When user terminal will carry out the CMB business, can put request message to the wireless access network broadcast earlier, after authentication was passed through, user terminal just can directly obtain the streaming media service data from the channel of CMB business.In this manner, wireless access network will be transmitted to the channel that is used for the CMB business with the stream medium data that receives all the time, a plurality of user terminals can be simultaneously obtain stream medium data from the channel of the same pre-determined CMB of being used for business in the sub-district, realize cell multimedia broadcasting service.
Another kind of mode is: wireless access network is receiving the later channel that is used for the CMB business that is not transmitted to immediately of stream medium data, but waits for the request of user terminal.After first request in the sub-district receives the user terminal transmission playing request message of this stream medium data, wireless access network just forwards the streaming media service data from the CMB Traffic Channel, then user terminal receiving stream media business datum on the CMB Traffic Channel.Afterwards, when other user terminal in this sub-district sends playing request message, other user terminal also can be the same direct with first user terminal on the CMB Traffic Channel of having set up the receiving stream media business datum.
Wherein, the channel that is used for the CMB business described in the present invention, promptly the CMB Traffic Channel can be common signal channel such as forward access channel (FACH), also can be other channel; Can be a channel, also can be many channels, as long as satisfy the requirement of transmission stream media service data in actual applications.In case determined the CMB Traffic Channel, a plurality of user terminals will obtain streaming media service from the channel of same CMB business, and need not to set up dedicated channel for self specially again.The CMB Traffic Channel can determine that when the sub-district is set up then the relevant information of CMB Traffic Channel can be kept in the user terminal in advance; Also can in the mutual process of user terminal and wireless access network, obtain, as long as before user terminal obtains the streaming media service data, obtain the information of CMB Traffic Channel.How to give the CMB Traffic Channel with the streaming media service data forwarding as for wireless access network, how user terminal obtains stream coal body business datum from the CMB Traffic Channel, open in another related application of the applicant, repeats no more herein.
Certainly, in actual applications, user terminal generally also needs to connect with network side.With WCDMA network 3GPP R99 is example, described wireless access network is universal mobile telecommunications system grounding wireless access network (UTRAN), described user terminal is UE, the method that connects is roughly: the radio network controller (RNC) of UE in UTRAN sends sets up Radio Resource control (RRC) connection request message, and UTRAN returns the RRC connection response message to UE; UE sends PDP by UTRAN to SGSN and activates request message, and SGSN returns PDP by UTRAN to UE and activates response message.Like this, UE has just set up with network side and has been connected.In general, in the process that UE and Access Network and core net connect, UTRAN can obtain the user ID of UE.User ID can be international mobile subscriber identity (IMSI), also can be travelling carriage comprehensive service digital net number (MSISDN).Wherein, it is more common method that UTRAN obtains IMSI, and the method for UTRAN acquisition MSISDN is then open in another related application of the applicant, repeats no more herein.Finish after the work that connects as UE, just can carry out the CMB business.In the network of other type, the method that user terminal and network side connect is relevant with concrete network, enumerates no longer one by one herein.
Among the present invention, the streaming media service data can be analog live broadcasting stream, also can be live TV streams.If analog live broadcasting stream, the method that then generates analog live broadcasting stream is: the off-line encoder in the data source server reads the source of media file from the original contents storehouse, as: the media file of forms such as MPEG2, AVI, MPEG1, and be translated into the file that meets the 3GPP/MP4 form.If live TV stream, the method that then generates live TV stream is: the analog signal conversion that video capture device will generate from satellite, simulated television, the first-class equipment of common shooting is a digital signal, and being input to direct broadcast coder, direct broadcast coder is the media data flow that meets the 3GPP/MP4 form with real-time digital signal encoding again.As for providing business datum and other operations of carrying out are similar with unicast service to access network controller in order to satisfy after how changing and changing, no longer be described in detail herein.
In the present invention, the streaming media service data generally have the attribute information of self, and attribute information can comprise: information such as the destination address of streaming media service data, port numbers, Voice ﹠ Video coded format, speed.The streaming media service data are also generally corresponding with streaming media service data content sign, and streaming media service data content sign is also sometimes referred to as channel identication or program identification.User terminal generally need obtain channel identication and be carried in the playing request message to notify wireless access network, and like this, user terminal just can receive the streaming media service data of channel identication correspondence.In addition, user terminal also needs to obtain the attribute information of streaming media service data, just the content of streaming media service data really can be presented to the user.In actual applications, if it is fewer that data source server offers the streaming media service data content type of user terminal, or claim that the channel that provides is fewer, just can be kept at the attribute information of these streaming media service data on the user terminal in advance, user terminal can not carry channel identication when sending playing request message, directly receive the streaming media service data of acquiescence from the CMB Traffic Channel.If it is many that data source server offers the channel of user terminal, just attribute information can be sent to user terminal in the mutual process of user terminal and network side, can earlier attribute information be sent to wireless access network as the data source server, in the reciprocal process that user terminal and wireless access network connect, send to user terminal again, also attribute information can be carried on to play in the response message and send to user terminal.
Among the present invention, many if data source server offers the channel of user terminal, user terminal can obtain channel identication earlier, and then carries out the CMB business.If channel is many, user terminal can be realized the CMB business by dual mode: a kind of WAP of being mode, another is " PTT " mode.The implementation procedure of WAP mode and " PTT " mode is roughly the same, and the method for different is user terminal obtains channel identication is different.Wherein, the WAP mode is: user terminal sends browse request message to terminal use's portal server (EU-Portal) earlier, or is called user terminal access or lands EU-Portal.Behind user selected channel, EU-Portal then returns to user terminal with channel identication, and in other words, the browse response message that EU-Portal will carry channel identication returns to user terminal; Afterwards, user terminal carries channel identication again and sends playing request message to wireless access network." PTT " mode then is by SMS service center (SMSC) channel identication to be sent to user terminal by wireless server (OTA) in advance, when the user will carry out the CMB business, user terminal can directly carry channel identication and send playing request message to wireless access network.Here, the channel identication that obtains can be kept in self, when the user carries out the CMB business, can promptly determine channel identication by a button, so be called " PTT " because the characteristics of " PTT " mode are user terminals.As for how determining that by a button channel identication realizes than being easier to, and not emphasis of the present invention, will no longer be described in detail at this at user terminal.
Method embodiment one
Fig. 3 has shown the flow chart of using the present invention program's method embodiment one.In the present embodiment, network type is WCDMA network 3GPP R99, and wireless access network is UTRAN, and user terminal is UE, and data source server is streaming media server (PSS).In the present embodiment, determined to be used for the channel of CMB business in advance, and UTRAN possesses the function that the streaming media service data that will receive are transmitted to the channel of the pre-determined CMB of being used for business.In the present embodiment, UTRAN sends the unitcast request message that carries channel identication to PSS earlier, and PSS returns to UTRAN with streaming media service data and attribute information thereof.In the present embodiment, UTRAN receives after the playing request message of first user in the sub-district, just to CMB Traffic Channel forwarding stream media business datum.
As shown in Figure 3, when certain UE will realize that CMB is professional, present embodiment may further comprise the steps:
Step 301:UE and UTRAN and CN connect.
In the present embodiment, UE with the method that UTRAN and CN connect is: UE earlier with UTRAN in UTRAN between set up RRC and be connected, and carry out PDP activation processing.In the process that UE and Access Network and core net connect, UTRAN will obtain the user ID IMSI of UE.
Step 302:UE sends the playing request message that carries the channel identication that self obtains in advance to UTRAN.
In the present embodiment, UE can have two kinds of methods that obtain channel identication, and a kind of is the WAP mode, and another is " PTT " mode.In actual applications, if PSS only provides a channel to the user, UE just need not to carry channel identication, and the streaming media service data that can the default user terminal between UE and the UTRAN will receive are exactly unique pairing business datum of channel.
The user ID IMSI that step 303:UTRAN carries channel identication and acquisition in advance sends authentication request message to mobile data business platform (MDSP).
In the present embodiment, user ID is IMSI, can be obtained by UTRAN in the process that UE and Access Network and core net connect.In actual applications, user ID also can be MSISDN.How UTRAN obtains the method for MSISDN to announce in another application documents of the applicant, no longer be described in detail herein.
In the present embodiment, MDSP is an authentication center, is responsible for authenticating according to channel identication and user ID.In actual applications, authentication center can not be MDSP also, as long as possess the network element of authentication function.If the user is fewer, also can directly authenticates, and need not to authenticate by special authentication center with UTRAN.
Step 304:MDSP judges the whether signatory pairing streaming media service data content of channel identication of UE according to channel identication and IMSI, if, then to UTRAN return authentication success response message; Otherwise,, and withdraw from this flow process to UTRAN return authentication failure response message.
In actual applications, UE will obtain the pairing streaming media service data of channel identication, need order earlier or signatory, and the UE that has only ordered the pairing streaming media service data of channel identication could successfully pass through verification process.
Step 305:UTRAN returns the broadcast response message of the attribute information that carries the streaming media service data to UE.
In the present embodiment, after the UE authentication was passed through, the attribute information of the streaming media service data that UTRAN just will receive UE sent to UE.In actual applications, also can adopt other method to make UE obtain attribute information.Can in process that UE connects or other reciprocal process, attribute information be sent to UE such as: UTRAN.If the channel that data source server provides is fewer, also can in advance attribute information be kept among the UE.
Step 306:UTRAN judges whether UE is the user that first request receives the streaming media service data corresponding with channel identication, if then the channel of streaming media service data from the pre-determined CMB of being used for business forwarded; Otherwise, do not deal with.
In the present embodiment, UTRAN can add up the number of users of certain channel of request in the sub-district, statistical method can for: when the user asks to receive the streaming media service data of certain channel identication correspondence, just this channel number of users is added 1, when the user asks to finish, then this channel number of users is subtracted 1.UTRAN can be non-0 by judging that whether number of users is changed to from 0, judges whether the UE of current transmission playing request message is user that first request receives the streaming media service data corresponding with channel identication.As a same reason, whether UTRAN can also be changed to 0 from non-0 by judging number of users, judges whether the UE that current transmission discharges request message is user that last request discharges business the sub-district in.
Step 307:UTRAN sends charging request message to MDSP.
Step 308:MDSP returns charge response message to UTRAN, and begins to charge according to the charging way that sets in advance.
MDSP can have monthly payment charging way, charge on traffic mode or time-based charging mode to the method that the user carries out the CMB service billing.The method of how the CMB business being chargeed about MDSP discloses in another patent application of the applicant, no longer is described in detail herein.
In the present embodiment, authentication center and charging center can realize with a network entity, i.e. MDSP, and in actual applications, and the function that authenticates and charge also can separately be realized in authentication center and charging center.
In actual applications, step 307 to step 308 might not be after step 306.The processing though MDSP should charge in UE receiving stream media business datum, i.e. receiving stream media business datum and charging carried out synchronously.But owing in fact be difficult to and there is no need synchronously, so UTRAN can send charging request message to MDSP behind authentication success, also can be when UE begin to obtain business datum from common signal channel, UTRAN just sends charging request message to MDSP.
Step 309:UE obtains the CMB business datum according to the attribute information of business datum from common signal channel.
In the present embodiment, UE can obtain the streaming media service data from common signal channel such as forward access channel (FACH), and UE decodes the streaming media service data according to attribute information again, and presents to the user.In actual applications, the channel that is used for the CMB business also can not be the FACH channel, but other channel, as long as satisfy the requirement of transmission stream media service data in the reality.
In the present embodiment, the streaming media service data are not for carrying out ciphered data, and in actual applications, the streaming media service data can be through ciphered data on eating dishes without rice or wine.
Method embodiment two
Fig. 4 is a flow chart of using the present invention program's other method embodiment.In the present embodiment, network type still is WCDMA network 3GPP R99, and wireless access network is UTRAN, and user terminal is UE, and data source server is streaming media server (PSS).In the present embodiment, also determined to be used for the channel of CMB business in advance, and UTRAN possesses the function that the streaming media service data that will receive are transmitted to the CMB Traffic Channel.In the present embodiment, UTRAN sends the unitcast request message that carries channel identication to PSS earlier, and PSS returns to UTRAN with streaming media service data and attribute information thereof; UTRAN receives after the streaming media service data, and the channel of streaming media service data from the pre-determined CMB of being used for business forwarded.At this moment, no matter whether have the user to ask the receiving stream media business datum in the sub-district, the streaming media service data have been arranged all on eating dishes without rice or wine.
As shown in Figure 4, when the user will carry out the CMB business, present embodiment may further comprise the steps:
Step 401:UE and UTRAN and CN connect.
The channel identication that step 402:UE carries prior acquisition sends playing request message to UTRAN.
In actual applications, if PSS only provides a channel, UE can not carry channel identication and directly send playing request message to UTRAN.In addition, in the present embodiment, it is identical with method among the embodiment one that UE obtains the method for channel identication in advance.
Step 403:UTRAN sends the authentication request message of the user ID that carries channel identication and obtain in advance to MDSP.
In actual applications, if number of users is fewer, UTRAN can also directly authenticate the user, and need not to be authenticated by special authentication center.
Whether signatory step 404:MDSP authenticates the user according to channel identication and user ID, judge the UE pairing streaming media service data content of channel identication, if, then to UTRAN return authentication success response message; Otherwise,, and withdraw from this flow process to UTRAN return authentication failure response message.
Step 405:UTRAN returns the broadcast response message of the attribute information that carries streaming media service data correspondence to UE.
In the present embodiment, UTRAN sends to UE by playing response message with the attribute of streaming media service data.In actual applications, also can in the connection procedure of UE and UTRAN and CN, attribute information be sent to UE by UTRAN.If channel is fewer, also can in advance attribute information be kept among the UE.
Step 406:UE obtains the streaming media service data from the channel that is used for the CMB business.
In the present embodiment, play response message and can be the success response message of real-time streaming protocol, UE can know according to this message and self be allowed to obtain the streaming media service data from the CMB Traffic Channel, then the streaming media service data that obtain decoded with attribute information and presents to the user.
In actual applications, when user authentication failure, UTRAN also can withdraw from this flow process again after UE sends failure response message.
In addition, in actual applications, MDSP can also charge to the UE that carries out the CMB business, and its method is identical with embodiment one.Certainly, authentication center in the present embodiment and charging center can be network entities independently, also can be unified network entities.
Method embodiment three
Fig. 5 has shown the flow chart of using the present invention program's method embodiment three.In the present embodiment, be that example describes still with WCDMA network 3GPP R99.Wherein, UE constantly receives business datum from common signal channel, is promptly carrying out the CMB business.As shown in Figure 4, when the user will finish this CMB business, present embodiment may further comprise the steps at least:
Step 501:UE sends to UTRAN and discharges request message.
Step 502:UTRAN judges whether UE is the user that last request finishes the CMB business in the sub-district, UE place, if then execution in step 503; Otherwise, execution in step 504.
In the present embodiment, UTRAN judges that whether UE is that last asks the method for end CMB business identical with the method described in embodiment one step 306, repeats no more herein.
Step 503:UTRAN stops to transmit data to UE place district common channel, and discharges interface-free resources.
Step 504:UTRAN returns to UE and discharges successful response message.
In actual applications, when UTRAN to UE return discharge successful response message after, MDSP can also finish the charging processing procedure to UE, and its result is exported to business operation support system (BOSS), will produce bill according to the charging result by BOSS again.
In addition, in actual applications, the mobile network of other type also can realize the CMB business, as: mobile networks such as GPRS (GPRS) network, code division multiple access (CDMA) network or personal handyphone system (PHS) network, the method of its implementation procedure and embodiment one to embodiment three is similar, repeats no more herein.
At the method that realizes cell multimedia broadcasting service, the present invention also provides the system that can realize cell multimedia broadcasting service.The basic thought of realizing the system of cell multimedia broadcasting service is: comprise data source server, wireless access network and user terminal in this system at least.Wherein, data source server is used for the streaming media service data are sent to wireless access network; Wireless access network is used for the streaming media service data are forwarded from the pre-determined channel that is used for cell multimedia broadcast CMB business; User terminal is used for obtaining the streaming media service data from the channel of CMB business.
System embodiment one
Fig. 6 has shown the basic networking diagram of using the present invention program's system embodiment one.With WCDMA network 3GPP R99 is example, and then data source server is PSS605, and wireless access network is UTRAN602, and user terminal is UE601, is the network element that must comprise in the present embodiment.As shown in Figure 6, present embodiment also comprises: SGSN603, GGSN604, EU-Portal606 and MDSP607.
Wherein, UE601 links to each other with UTRAN 602, and UTRAN 602 links to each other with SGSN603, and SGSN603 links to each other with GGSN604, and SGSN603 links to each other with PSS605, and SGSN603 links to each other with MDSP607, and GGSN604 links to each other with EU-Portal606.
UE601 is used for sending playing request message to UTRAN602, receives the broadcast response message that UTRAN602 returns, and obtains the streaming media service data from the CMB Traffic Channel that is used for of self sub-district, place;
UTRAN602 is used for sending unitcast request message by SGSN603 to PSS605, receives the streaming media service data and the attribute information thereof that are returned by PSS605, and is responsible for transmitting data on the channel that is used for the CMB business of sub-district, UE601 place;
SGSN603 is used for the information interaction between UTRAN602 and the MDSP607, is used for the information interaction between UTRAN602 and the PSS605, is used for the information interaction between UE601 and the EU-Portal606;
GGSN604 is used for the information interaction between UE601 and the EU-Portal606;
PSS605 is used to receive the unitcast request message that UTRAN602 sends, and streaming media service data and attribute information thereof are returned to UTRAN602;
EU-Portal606 is used to receive the browse request message of UE601, and returns channel identication to UE601;
MDSP607 is used to receive the authentication request message that UTRAN602 sends, authenticates according to user ID and channel identication, and to UTRAN602 return authentication response message.
When the mobile subscriber will carry out the CMB business, UE601 sends browse request message by UTRAN602, SGSN603 and GGSN604 to EU-Portal606, and EU-Portal606 returns the browse request response message that includes channel identication by GGSN604 and SGSN603 to UE601.UE601 sends the playing request message that carries channel identication to UTRAN602 again; UTRAN602 carries channel identication and user ID sends authentication request message to MDSP607; MDSP607 judges according to channel identication and user ID whether UE601 is signatory, and to UTRAN602 return authentication response message; UTRAN602 returns the broadcast response message of the attribute information that carries business datum again to UE601, and judge whether UE601 is the user of first request reception and channel identication corresponding service data, if then start UTRAN602 transmits function from data to UE601 place district common channel; Otherwise, do not deal with; Then, UE601 obtains the streaming media service data according to the attribute information of business datum from common signal channel.
In the present embodiment, UE601, UTRAN602, PSS505 realize that the CMB business is necessary, and SGSN603, GGSN604, EU-Portal606 and MDSP607 then can select arbitrarily.When comprising MDSP607 in the system, this system can charge and authenticates the CMB business that UE601 carries out; When system included EU-Portal606, UE601 just can obtain channel identication by landing EU-Portal606, if but UE601 can obtain channel identication by alternate manner, input to UE601 etc. as manual, and this system just need not EU-Portal606.
System embodiment two
Fig. 7 has shown the basic networking diagram of using the present invention program's system embodiment two.As shown in Figure 7, present embodiment comprises: UE701, UTRAN702, SGSN703, PSS704, MDSP705, OTA706 and SMSC707.Wherein, UE701, UTRAN 702, SGSN703, PSS704, MDSP705 are identical with the function and the annexation of corresponding net element in the system embodiment one, no longer are described in detail herein.
Present embodiment and system embodiment one different places be: this system also comprises OTA707 and SMSC708.Wherein, OTA707 is used for sending and carries channel identication and upgrade program bookmarking message; The renewal program bookmarking message conversion that SMSC708 is used for OTA707 sent to self is a short message, and sends to UE701.
The same with system embodiment, UE701, UTRAN702, PSS704 are that present embodiment realizes that the CMB business is necessary, and other network element can be selected arbitrarily.
In system embodiment one and system embodiment two, data are all just transmitted in the effect of SGSN and GGSN, not tangible effect, and PSS promptly can link to each other with SGSN, also can link to each other with GGSN.
In sum, more than be preferred embodiment of the present invention only, be not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (20)
1, a kind of method that realizes cell multimedia broadcasting service is characterized in that, data source server sends to wireless access network with the streaming media service data, and in the time will carrying out cell multimedia broadcast CMB business, this method may further comprise the steps:
A, wireless access network will flow the coal body business datum and forward from the channel that is used for the CMB business;
B, user terminal obtain the streaming media service data from the channel that is used for the CMB business.
2, method according to claim 1 is characterized in that, described step b is:
B1, user terminal send playing request message to wireless access network;
B2, wireless access network authenticate user terminal, and judge whether to contract according to authentication result, if then return the broadcast response message; Otherwise, withdraw from this flow process;
B3, user terminal obtain the streaming media service data according to playing response message from the channel that is used for the CMB business again.
3, method according to claim 2 is characterized in that, the described wireless access network of step b2 to the method that described user terminal authenticates is:
Wireless access network sends the authentication request message of the user ID carry prior acquisition to authentication center, and authentication center authenticates user terminal according to user ID, and the authentication response message that will carry authentication result returns to wireless access network.
4, method according to claim 1 is characterized in that, further comprises before the described step a:
X1, user terminal send playing request message to wireless access network;
X2, wireless access network judge that whether described user terminal is user of first request receiving stream media business datum, if, execution in step a then; Otherwise, execution in step b.
5, method according to claim 4 is characterized in that, further comprises between described step x1 and the step x2:
Wireless access network authenticates user terminal, and judges whether to contract according to authentication result, if then return the broadcast response message; Otherwise, withdraw from this flow process.
6, method according to claim 5 is characterized in that, described wireless access network to the method that user terminal authenticates is:
Wireless access network sends the authentication request message of the user ID that carries prior acquisition to authentication center, authentication center authenticates user terminal according to user ID, and judge whether user terminal is signatory, if, then to wireless access network return authentication success response message; Otherwise, return authentication failure response message.
7, method according to claim 5 is characterized in that, further comprises between described step a and the step b:
Wireless access network sends charging request message to the charging center, and charge response message is returned to wireless access network in the charging center, and begins to charge according to the charging way that sets in advance.
8, method according to claim 7 is characterized in that, the described charging way that sets in advance is: monthly payment charging way, the mode of charging by flow or mode charged according to time.
9, method according to claim 6 is characterized in that, described user terminal is the user terminal that obtains streaming media service data content sign in advance;
The described playing request message of step x1 is the playing request message that carries streaming media service data content sign;
Described authentication request message is the authentication request message that carries streaming media service data content sign;
The described method of judging whether user terminal has contracted is: whether signatory streaming media service data content identifies pairing streaming media service data to judge user terminal.
10, method according to claim 9 is characterized in that, the method that described user terminal obtains streaming media service data content sign in advance is:
User terminal sends browse request message to terminal use's portal server EU-Portal, EU-Portal returns the browse request response message that includes streaming media service data content sign, and user terminal obtains streaming media service data content sign according to the browse request response message.
11, method according to claim 9 is characterized in that, the method that described user terminal obtains streaming media service data content sign in advance is:
Wireless server OTA sends to user terminal by the renewal program bookmarking message that SMS service center SMSC will carry streaming media service data content sign, and user terminal obtains the business datum content identification according to upgrading program bookmarking message.
According to each described method of claim 1 to 11, it is characterized in that 12, described data source server with the method that the streaming media service data send to wireless access network is:
Wireless access network sends unitcast request message to data source server, and data source server returns to wireless access network with streaming media service data and attribute information thereof.
According to each described method of claim 1 to 11, it is characterized in that 13, when user terminal finished the CMB business, this method further may further comprise the steps:
A, user terminal send to wireless access network and discharge request message;
B, wireless access network judge that whether user terminal is user that last request finishes the CMB business in the sub-district, place, if, execution in step C then; Otherwise, execution in step D;
C, wireless access network stop to transmit data to user terminal place district common channel, and discharge interface-free resources;
D, wireless access network return to user terminal and discharge successful response message.
14, a kind of system that realizes cell multimedia broadcasting service, this system comprises at least: data source server, wireless access network, user terminal;
It is characterized in that wireless access network is further used for and will forwards from the channel that is used to transmit cell multimedia broadcast CMB business from the streaming media service data of data source server;
User terminal is further used for obtaining the streaming media service data from the channel that is used for the CMB business.
15, system according to claim 14 is characterized in that, this system further comprises:
Authentication center is used to receive the authentication request message that is sent by wireless access network, according to authentication request message the user is authenticated, and authentication response message is returned to wireless access network.
16, according to claim 14 or 15 described systems, it is characterized in that this system further comprises:
The charging center is used to receive the charging request message that is sent by wireless access network, according to charging request message the user is chargeed, and charge response message is returned to wireless access network.
17, system according to claim 16 is characterized in that, this system further comprises:
Universal grouping wireless business supporting node GSN is used for the mutual of information between wireless access network and the data source server, also be used for wireless access network and authentication center and charging center information alternately.
18, system according to claim 17 is characterized in that, described GSN comprises:
Service universal grouping wireless business supporting node SGSN and ggsn GGSN;
Wherein, SGSN links to each other with wireless access network, and SGSN links to each other with GGSN, and SGSN or GGSN link to each other with data source server, and SGSN links to each other with the charging center with authentication center;
This system further comprises:
EU-Portal, be used to receive the browse request message that sends by wireless access network, SGSN, GGSN by user terminal, and the browse response message that will carry streaming media service data content sign returns to user terminal by GGSN, SGSN and wireless access network.
19, system according to claim 17 is characterized in that, described GSN comprises:
SGSN and GGSN, wherein, SGSN links to each other with wireless access network, and SGSN links to each other with GGSN, and SGSN or GGSN link to each other with data source server, and SGSN links to each other with the charging center with authentication center;
This system further comprises:
OTA is used for sending the renewal program bookmarking message that carries streaming media service data content sign to SMSC;
SMSC, the renewal program bookmarking message conversion that is used for being sent by OTA is a short message, and short message is sent user terminal.
20, system according to claim 14 is characterized in that, described data source server is streaming media server PSS.
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