CN101336548A - Method and apparatus for handling an electronic service guide transmission error in a digital video broadcasting system - Google Patents
Method and apparatus for handling an electronic service guide transmission error in a digital video broadcasting system Download PDFInfo
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- CN101336548A CN101336548A CNA2006800519943A CN200680051994A CN101336548A CN 101336548 A CN101336548 A CN 101336548A CN A2006800519943 A CNA2006800519943 A CN A2006800519943A CN 200680051994 A CN200680051994 A CN 200680051994A CN 101336548 A CN101336548 A CN 101336548A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
- H04N21/4425—Monitoring of client processing errors or hardware failure
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/647—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
- H04N21/64746—Control signals issued by the network directed to the server or the client
- H04N21/64761—Control signals issued by the network directed to the server or the client directed to the server
- H04N21/64776—Control signals issued by the network directed to the server or the client directed to the server for requesting retransmission, e.g. of data packets lost or corrupted during transmission from server
Abstract
A method and apparatus for handling an Electronic Service Guide (ESG) transmission error in a digital video broadcasting system, including a Service Application (SA) entity for receiving a file repair request message from a terminal after broadcasting an ESG from a Service Management (SM) entity to the terminal and, when the file repair request message is a request for the ESG, providing the SM entity with the file repair request message and an address of the terminal; a logical ESG aggregator for generating the ESG within the SM entity interpreting the request message and determining whether to retransmit the ESG to the terminal, and when determining to retransmit the ESG, the logical ESG aggregator delivering, ESG metadata and the address of the terminal to an interactive server for transmitting the ESG within the SM entity. The interactive server transmits the ESG metadata to the terminal.
Description
Technical field
The present invention relates generally to the electronic service guidebooks (ESG:ElectronicService Guide) in the digital video broadcast system, and relate more specifically to dispose the method and apparatus that transmits error when taking place to use file to repair request command when ESG transmits error.
Background technology
Digital video broadcasting (DVB) is to utilize European digital broadcasting technology to support the digital multimedia service of hand-held and portable terminal and the transmission standard of existing digital broadcasting.
The DVB system can multiplexed broadcast data based on motion image expert group 2 (MPEG2) transport stream (TS), and can transmit the data flow based on Internet Protocol (IP) simultaneously.In addition, the DVB system can be in IP stream multiplexed various services and transmit described various service.After the data of the IP stream of receiving transmission, terminal is separated the independent service that is multiplexed as with the data that received, and the TS of the service of expectation is decoded, and the TS of decoding is provided to the user by indicator screen.At this moment, the user need be about the various services that provide from the DVB system and the information of service content.
The DVB system uses electronic service guidebooks (ESG) that the notice of information on services is provided.The ESG data comprise special services temporal information, associated content information, the needed information of received content, buy needed information of content or the like.DVB system constructing data model is to transmit the ESG data and the data that will transmit are set based on this data model effectively.
In the time that is different from the actual data stream time, use IP to flow to terminal and transmit ESG.Like this, the service provider can be before the user receives corresponding service transmission information to use ESG.Because ESG can be used for various purposes and program guide, so ESG information is extremely important in the mobile broadcast environment.
When ESG was sent to terminal, it was identified as ordinary file, and the use agreement identical with file transfer protocol (FTP) transmits.Traditionally, in mobile broadcast, file transfer protocol (FTP) meets internet engineering task group (IETF) Request for Comment (Request for Commmets, RFC) 3926 the file that passes through one-way transmission is delivered (File Delivery over Unidirectional Transport, FLUTE) standard.If error takes place to transmit when terminal receives ESG, then can use file reparation request command to send ESG and repair request as under the situation of ordinary file to network.Yet the problem of existence is not to be provided for disposing the method and apparatus of the transmission error on the network.Like this, exist to can be when ESG transmits error and takes place, send and repair the needs of asking network and receiving the method and apparatus of the ESG that is retransmitted.
Summary of the invention
Therefore, the present invention has been designed to solve the above-mentioned and other problem that takes place in the prior art.The invention provides a kind of method and apparatus,, when terminal receives the ESG that the transmission error wherein takes place, can use ordinary file to repair request command and receive the ESG that retransmits at the digital video broadcast system that is used for providing electronic service guidebooks (ESG).
According to an aspect of the present invention, a kind of method that electronic service guidebooks (ESG) transmits error that is used to dispose in digital video broadcast system is provided, described method comprise the steps: from the Service Management entity after terminal broadcasting ESG, the service application entity receives file repairing requiring message from terminal; When file repairing requiring message comprises request for ESG, transmit file repairing requiring message and from the address of the terminal of its transmission file repairing requiring message to the Service Management entity from the service application entity; Logic ESG polymerizer in the Service Management entity, that be used for generating ESG, instrument of interpretation is repaired request message, and determines whether to retransmit ESG to the terminal that transmits file repairing requiring message; When determine retransmitting ESG, send the address of ESG metadata and terminal from logic ESG polymerizer (aggregator) interactive server in the Service Management entity, that be used to transmit ESG; And transmit the ESG metadata to terminal from interactive server.
According to another aspect of the invention, a kind of method that electronic service guidebooks (ESG) transmits error that is used to dispose in digital video broadcast system is provided, described method comprise the steps: from the Service Management entity after terminal broadcasting ESG, the service application entity receives file repairing requiring message from terminal; When file repairing requiring message comprises request for ESG, transmit file repairing requiring message and from the address of the terminal of its transmission file repairing requiring message to the Service Management entity from the service application entity; Logic ESG polymerizer in the Service Management entity, that be used for generating ESG is explained this request message, and determines whether to retransmit ESG to the terminal that transmits file repairing requiring message; When determining to retransmit ESG, send the address of ESG metadata and terminal to the service application entity from logic ESG polymerizer; And from serving application entity to terminal transmission ESG metadata.
According to another aspect of the invention, a kind of method that electronic service guidebooks (ESG) transmits error that is used to dispose in digital video broadcast system is provided, described method comprise the steps: from the Service Management entity after terminal broadcasting ESG, the Service Management entity receives file repairing requiring message from terminal; Use ESG to repair request message, the interactive server being used for transmitting from the Service Management entity ESG determines whether to retransmit ESG; When determine retransmitting ESG, transmit the ESG retransmission request message to logic ESG polymerizer in the Service Management entity, that be used to generate ESG from interactive server; Transmit the address of ESG metadata and terminal to interactive server from logic ESG polymerizer; And transmit the ESG metadata to terminal from interactive server.
According to another aspect of the invention, a kind of equipment that electronic service guidebooks (ESG) transmits error that is used to dispose in digital video broadcast system is provided, described equipment comprises: the service application entity is used for receiving file repairing requiring message from terminal, and determines whether to retransmit ESG; And Service Management entity, be used to generate ESG, broadcast the ESG that is generated to terminal, receive file repairing requiring message from the service application entity, determine whether to retransmit ESG, and transmit the ESG metadata to terminal, wherein based on the result who determines, when file repairing requiring message comprised request for ESG, the service application entity was to address that the Service Management entity provides file repairing requiring message and transmits the terminal of file repairing requiring message; And Service Management entity instrument of interpretation reparation request message, determine whether to retransmit ESG, and transmit the ESG metadata to terminal based on the result who determines to the terminal that transmits file repairing requiring message.
According to another aspect of the invention, a kind of equipment that electronic service guidebooks (ESG) transmits error that is used to dispose in digital video broadcast system is provided, described equipment comprises: the service application entity is used for receiving file repairing requiring message from terminal, and determines whether to retransmit ESG; And Service Management entity, be used to generate ESG, broadcast the ESG that is generated to terminal, receive request message from the service application entity, determine whether to retransmit ESG, and transmit the ESG metadata via the service application entity to terminal, wherein based on the result who determines, when file repairing requiring message comprised request for ESG, the service application entity was to address that the Service Management entity provides file repairing requiring message and transmits the terminal of file repairing requiring message; And the Service Management entity explains request message, and determines whether to retransmit ESG to the terminal that sends file repairing requiring message.
According to another aspect of the invention, a kind of equipment that electronic service guidebooks (ESG) transmits error that is used to dispose in digital video broadcast system is provided, described equipment comprises: interactive server, be used for to terminal broadcasting ESG, receive ESG from terminal and repair request message, instrument of interpretation is repaired request message, and determines whether to retransmit ESG to the terminal that transmits file repairing requiring message; And logic ESG polymerizer, be used to generate ESG, receive the ESG repeat requests based on definite result, and transmit the ESG metadata to interactive server, described interactive server transmits the ESG metadata that receives from logic ESG polymerizer to terminal.
Description of drawings
According to detailed description with the accompanying drawing next, of the present invention above and further feature and advantage will more be expressly understood, wherein:
Fig. 1 is the block diagram that illustrates the structure of the mobile broadcast network of relation that the present invention is applied to;
Fig. 2 is the block diagram that illustrates the structure of electronic service guidebooks (ESG) network of relation that the present invention is applied to;
Fig. 3 is the block diagram that illustrates the file-related network structure that the present invention is applied to;
Fig. 4 is the flow chart that illustrates according to the message flow of file-related network of the present invention;
Fig. 5 is the block diagram that illustrates according to the message flow of file-related network of the present invention;
Fig. 6 is the flow chart that illustrates according to the message flow of file-related network of the present invention;
Fig. 7 is the flow chart that illustrates according to the message flow of transmitter of the present invention;
Fig. 8 is the flow chart that illustrates according to the message flow of receiver of the present invention;
Fig. 9 is the flow chart that illustrates according to the message flow of transmitter of the present invention;
Figure 10 is the flow chart that illustrates according to the message flow of receiver of the present invention;
Figure 11 is the flow chart that illustrates according to the message flow of the transmitter of the 3rd example embodiment of the present invention;
Figure 12 is the flow chart that illustrates according to the message flow of receiver of the present invention;
Figure 13 is the block diagram that illustrates according to the structure of transmitter of the present invention; And
Figure 14 is the block diagram that illustrates according to the structure of receiver of the present invention.
Embodiment
Below, will describe operating principle of the present invention with reference to the accompanying drawings here in detail.In ensuing description, for clarity and conciseness, omitted and be incorporated in detailed description, function known to those skilled in the art and configuration here.It being understood that the word and the term that adopt are for purpose of description here, should not be considered to limit the present invention.
According to the present invention,,, use file reparation request command to send (promptly transmitting) electronic service guidebooks (ESG) and repair request to network then as under the situation of ordinary file if when terminal receives ESG, take place to transmit error.Here, will describe in detail when ESG transmits error and takes place, send the request of reparation and receive the embodiment of the ESG that retransmits and send unique reparation request of ESG and receive the embodiment of the ESG of re-transmission to network to network.
Fig. 1 is the block diagram that illustrates the structure of the mobile broadcast network of relation that the present invention is applied to.
Logic entity is illustrated as piece, and distinguishes according to their major function.But described physics separately or be provided in the identical server.With reference to figure 1, content creating (CC) entity 105 content creating sources, and use (SA) entity 110 to service then and send the content source of being created.SA entity 110 uses the content source and the needed attaching metadata of service configuration that receive from CC entity 105 to generate specific service.Service Management (SM) entity 115 is carried out functions such as service configuration, resource allocation, ESG supply, safety.
Radio network 120 is handheld digital video broadcasting (DVB-H) networks, and comprises the parts that are used to broadcast the ESG that is suitable for the DVB-H network and the relevant signaling of broadcasting.To the present invention be described with reference to DVB-H.Yet the present invention is not limited to DVB-H.Usually, interactive network 125 is cellular networks.Interactive network 125 can be that have can be from terminal to network transmission data or transmit all networks of the function of request message.Terminal 130 is the user terminals that are used to the service that receives.
In Fig. 1, interface and above-mentioned logic entity between the entity have been defined.Usually, based on DVB-H, do not define X-1, X-2 and X-3 interface with interactive or two-way standard.The relevant signaling of broadcasting transmits via broadcasting and mobile service assembly (CBMS)-1 interface.The content element of audio frequency, video, file etc. transmits via the CBMS-2 interface.ESG transmits via CBMS-3.In point-to-point transmitted, ESG transmitted via the CBMS-4 interface.In point-to-point transmitted, Short Message Service (SMS) and Multimedia Message service (MMS) transmitted via the CBMS-5 interface.Transmit for DVB-H, the configuration parameter of service number, the bandwidth of distribution etc. transmit via the CBMS-6 interface.Service is used via CBMS-7 interface bulletin, and perhaps metadata transmits via the CBMS-7 interface.The major function of above-mentioned interface has only been described.Interface function is not limited to top description.
Fig. 2 is the block diagram that illustrates the structure of the ESG network of relation that the present invention is applied to.
Fig. 2 illustrates architecture and the logic function block based on the entity basic architecture of Fig. 1, that be used to generate and transmit ESG.The functional block of ESG source 222 and purchase information source 224 is provided in SA entity 220.The data corresponding with the ESG source are collected in ESG source 222, and comprise information and other metadata that receives from CC entity 200.Purchase information source 224 is the pieces that comprise purchase information.Provide this information via the CBMS-7 interface to SM entity 240.
Fig. 3 is the block diagram that illustrates the file-related network structure that the present invention is applied to.
Fig. 3 illustrates architecture and the logic function block based on the entity basic architecture of Fig. 1, that be used to generate and transmit file.SA entity 320 comprises the secondary entity of the file delivery that is used for file delivery (sub-entity) 322, be used for receiving the secondary entity 324 of file source of file source and the secondary entity 326 of configuration is used in the service of responsible service configuration from the CC entity.Terminal 380 comprises the secondary entity 382 of content consumption, and is responsible for the service that provides relevant with the file that receives.Because other piece of Fig. 3 is identical with those pieces of Fig. 2, for the sake of clarity, has omitted its description.
When determining file transmission error to have occurred, terminal sends the HTTP(Hypertext Transport Protocol) file repairing requiring message to SA entity 320.The HTTP file repairing requiring message comprises about the position that will use the file that HTTP receives and has transmitted the information of the part of error.The example of HTTP file repairing requiring message is as follows:
“GET?www.example.com/news/latest.3gp？ipdc-flute-
repair&SBM＝5；ESI＝12+SBN＝20；ESI＝27?HTTP/1.1”
Top example meets " query=application* (the " ﹠amp of definition in the normative document (tm-cbms1167) of DVB-CBMS content delivery protocol (CDP); " [sbn_info]) ".In the above example, application (application) is " ipdc-flute-repair ", and sbn_info indicates the piece that will receive in file, and indicates forward error correction (FEC) code identifier (ID).Above example indicate the grouping of wherein source block number (SBN)=5 and code symbols ID (ESI)=12 and the wherein grouping of SBN=20 and ESI=27.
When the file of being sent was ESG, the entity of being responsible for point-to-point ESG transmission became SM (Service Management) entity 340.Like this, need between SA entity 320 and SM entity 340, communicate.SM entity 340 instruments of interpretation are repaired request message, and should be to interactive delivery server 248 notices about being used to receive the terminal of ESG data and the information of point-to-point ESG.
Fig. 4 is the flow graph that illustrates according to the message flow of file-related network of the present invention.
With reference to figure 4, when receiving the ESG that has wherein transmitted error, in step 400, terminal 440 is used file repeat requests command signaling, provide ordinary file to repair request message to SA entity 410, and need not to determine that wrong file is ESG or ordinary file.In step 401, SA (service is used) entity 410 detects the position of the retransmission file of being asked, and determines that the file of being asked is ordinary file or ESG.For this reason, preferably to store about application file be the ESG or the information of ordinary file to SA entity 410.
If the retransmission file of being asked is ESG, then in step 402, repair request message to SM entity 420 retransmission file of being responsible for ESG.At this moment, provide the address that sends the terminal of message from it.In step 403, the logic ESG polymerizer 425 of SM entity 420 is explained message, and determines that this message is the ESG request message.In step 404,, the ESG metadata is delivered to interactive server 430 with the address of terminal.For this reason, logic ESG polymerizer 425 should be able to use HTTP, comes instrument of interpretation to repair request message.
ESG metadata and terminal address that use is sent from interactive server 430 in step 405, send ESG to the terminal 440 that is associated.If logic ESG polymerizer 425 is determined not retransmit ESG, then it notifies SA entity 410 not retransmit ESG in step 406.SA entity 410 generates in step 407 and is used to indicate the file repair response message that does not retransmit ESG, and the file repair response message that transmission in step 408 subsequently (that is, transmitting) is generated is to terminal 440.
Fig. 5 is the flow graph that illustrates according to the message flow of file-related network of the present invention.
With reference to figure 5, when receiving the ESG that has wherein transmitted error, in step 500, terminal 540 is used file repeat requests command signaling, provide ordinary file to repair request message to SA entity 510, and need not to determine that wrong file is ESG or ordinary file.In step 501, SA entity 510 detects the position of the retransmission file of being asked, and determines that the file of being asked is ordinary file or ESG.For this reason, should to store about application file be the ESG or the information of ordinary file to SA entity 510.
If the retransmission file of being asked is ESG, then in step 502, repair request message to SM entity 520 retransmission file of being responsible for ESG.At this moment, provide the address that sends the terminal of message from it.In step 503, the logic ESG polymerizer 425 of SM entity 520 is explained message, and determines that this message is the ESG request message.
The step 400-403 of step 500-503 and Fig. 4 is similar.In step 504, SM entity 520 sends the ESG metadata in response to the ESG repeat requests to SA entity 510.Then, in step 505, SA entity 510 sends the ESG metadata to the terminal 540 of request ESG metadata.This is the same with the processing under the situation of general file repair response.
When determining not retransmit ESG, then in step 506, logic ESG polymerizer 525 notice SA entities 510 do not retransmit ESG.SA entity 510 generates in step 507 and is used to indicate the file repair response message that does not retransmit ESG, and sends the file repair response message that is generated to terminal 540 subsequently in step 508.
Fig. 6 is the flow graph that illustrates according to the message flow of file-related network of the present invention.
As shown in Figure 6, when ESG transmitted the error generation, terminal 640 sent unique request message of ESG to SM entity 620 after detecting the ESG transmission error different with ordinary file transmission error.
With reference to figure 6, when terminal 640 in step 600 when the interactive server 630 of SM entity 620 sends ESG and repairs request messages, interactive server 630 is explained in step 601 and is repaired request message, in step 602, send the message of explanation, and in step 603, receive the ESG metadata from logic ESG polymerizer 625 to logic ESG polymerizer 625.
In step 604, interactive server 630 transmits the ESG metadata that is received and arrives its terminal 640 of request.Yet when determining not retransmit ESG, logic ESG polymerizer 625 generates in step 605 and indicates the response message that does not retransmit ESG, and sends this response message to the terminal 640 that is associated in step 606.
On the other hand, can revise unique request message of ESG.
Basic HTTP GET order is as follows.
GET?Request_URI＝GET″*″|absolute_URI|abs_path
" absolute_URI " can have uniform resource locator (URL) form and generic resource title (URN) form.This example embodiment is used and corresponding " urn:dvb:esg:cid:1 " of URN form that is defined by DVB, defined the wherein ESG delivery unit of container (container) ID=1, this URN form is different from file reparation inquiry (query) form at the embodiment shown in the Figure 4 and 5.
In addition, use querying attributes to define ensuing inquiry with HTTP GET order.
Query＝application*(″&″[TOI_info])
TOI_info＝″TOI″＝TOI_number
TOI_number＝1*DIGIT
Apply Names that utilization is associated and processing HTTP GET order needed " TOI_info " make up inquiry." TOI_info " is in order to indicate the parameter of " TOI_number ".The same with the value of delivering the connection object identifier (TOI) that uses in (FLUTE), when transmitting file object by the file of one-way transmission, " TOI_number " has integer value.When in DVB-CBMS, transmitting ESG, transmit the version value of the ESG container corresponding with the delivery unit that has wherein distributed the TOI value that is associated.The reason that transmits TOI value is to transmit error and to retransmit ESG container that renewal is associated in the processing of ESG and the ESG container that can not receive renewal detecting ESG.
When in whole network, going wrong, can not receive the ESG of renewal.
May there be ensuing example.
GET?urn:dvb:esg:cid:1？ipdc-esg-repair&TOI＝16?HTTP/1。
Fig. 7 is the flow chart that illustrates according to the message flow of transmitter of the present invention.
In the flow chart of Fig. 7, " SA " representative service application entity, and " SM " represents the Service Management entity.In step 705, SM entity broadcasts ESG.When receiving file repairing requiring message in step 710, in step 715, the SA entity reads file from request message address and definite this document are ordinary file or ESG.Under the situation of ordinary file, the SA entity advances to step 720 to carry out the processing identical with the processing of ordinary file.Yet under the situation of ESG, the SA entity advances to step 725, with the address that request message is provided to the SM entity and transmits the terminal of this message.
In step 730, the logic ESG polymerizer of SM entity receives request message and terminal address information from the SA entity, explains this request message and determines that described message is the repeat requests of specific ESG.In step 735, the SM entity determines whether to retransmit ESG.When determining not retransmit ESG, the SM entity advances to step 740, indicates the response message that does not retransmit ESG with generation, and transmits response message to the SA entity.Then, in step 745, the SA entity generates specified document and recovers disabled response message, and transmits this response message to the terminal that is associated.Yet when determining to retransmit ESG in step 735, the logic ESG polymerizer of SM entity provides ESG metadata and terminal address to interactive server in step 750.The interactive server of SM entity transmits the ESG metadata to terminal in step 755.
Fig. 8 is the flow chart that illustrates according to the message flow of receiver of the present invention.
With reference to figure 8, terminal receives ESG in step 805, detects the transmission error among the ESG in step 810, and generates the HTTP file repairing requiring message to transmit this message to network in step 815.
If in step 820 terminal receive re-transmission file, and the address of determining file sender (filesender) is mapped to interactive server and the file that retransmitted is ESG, then it advances to step 825 with storing ESG.Yet if the file that is retransmitted is not ESG, terminal advances to step 830 and indicates the file repair response message that does not retransmit ESG with detection.In step 835, terminal reads filename from the message that is received, and itself and address list on the network of the ESG that provides in terminal are compared.If the message that is received is confirmed as the re-transmission failed message of specific ESG, then terminal retransmits failure to user notification in step 840.
Fig. 9 is the flow chart that illustrates according to the message flow of transmitter of the present invention.
In the flow chart of Fig. 9, " SA " representative service application entity, and " SM " represents the Service Management entity.In step 905, SM entity broadcasts ESG.When receiving file repairing requiring message in step 910, in step 915, the SA entity reads file from request message address and definite this document are ordinary file or ESG.Under the situation of ordinary file, the SA entity advances to step 920, to carry out the processing identical with the processing of ordinary file.Yet under the situation of ESG, the SA entity advances to step 925, request message to be provided to the SM entity and to send the address of the terminal of message from it.
In step 930, the logic ESG polymerizer of SM entity receives request message and terminal address information from the SA entity, explains request message, and determines that described message is the repeat requests of specific ESG.In step 935, the SM entity determines whether to retransmit ESG.When determining not retransmit ESG, the SM entity advances to step 940, indicates the response message that does not retransmit ESG with generation, and transmits this response message to the SA entity.In step 945, the SA entity generates specified document and recovers disabled response message, and transmits this response message to the terminal that is associated.Yet when determining to retransmit ESG in step 935, the logic ESG polymerizer of SM entity provides ESG metadata and terminal address to the SA entity in step 950.The SA entity receives the ESG metadata, and transmits the ESG metadata that is received to terminal in the mode identical with transmitting ordinary file subsequently in step 955.
Figure 10 is the flow chart that illustrates according to the message flow of receiver of the present invention.
With reference to Figure 10, terminal receives ESG in step 1005, detects the transmission error among the ESG in step 1010, and generates the HTTP file repairing requiring message to transmit message to network in step 1015.
Then, when receiving the file that is retransmitted in step 1020, terminal advances to step 1025 to determine that the file that retransmits is ESG.In step 1030, terminal storage ESG also provides ESG to the user.
Yet if the file that is retransmitted is not ESG, terminal advances to step 1035, indicates the not file repairing requiring message of retransmission file with detection.In step 1040, terminal reads filename from the message that receives, and it and address list on the network of the ESG that provides in terminal are compared.If the message that is received is defined as the re-transmission failed message of specific ESG, then terminal notifies the user to retransmit failure in step 1045.
According to the flow chart of the receiver of second example embodiment usually with identical according to the receiver of first example embodiment.Difference between first example embodiment and second example embodiment is as follows.In first example embodiment, because retransmit ESG, so terminal can be by checking that server address detects ESG and transmits from interactive server.In second example embodiment,,, the ESG of title that terminal can be by the reception file on the comparing cell and address and its oneself detects ESG so tabulating because ESG transmits via the transfer path of ordinary file.
Figure 11 is the flow chart that illustrates according to the message flow of transmitter of the present invention.
With reference to Figure 11, the SM entity transmits ESG in step 1105, receives HTTP ESG from particular terminal and repair request message in step 1110, and determine whether to retransmit ESG in step 1115.
When determining not retransmit ESG, the SM entity advances to step 1120, indicates the ESG repair response message that does not retransmit ESG with transmission.Yet when determining to retransmit ESG, logic ESG polymerizer advances to step 1125, to send the address of ESG metadata and associated terminal to interactive server.In step 1130, interactive server provides this information to associated terminal.
Figure 12 is the flow chart that illustrates according to the message flow of receiver of the present invention.
With reference to Figure 12, receiver receives ESG in step 1205, and detects in step 1210 and transmit error.In step 1215, transmit ESG to network and repair request.If in step 1220, receive the ESG that is retransmitted, storing ESG and provide it to terminal in step 1225 then.Yet if determine not receive the ESG that is retransmitted in step 1220, receiver advances to step 1230, indicates the ESG repair response message that does not retransmit ESG to determine to have received.Receiver by reading the re-transmission failed message that transfer address, receiver address and filename detect specific ESG from the message that is received, and should retransmit failed message to user notification then in step 1240 in step 1235.
Figure 13 is the block diagram that illustrates according to the structure of transmitter of the present invention.
With reference to Figure 13, SA entity 1310 on network and SM entity 1320 provide file storage and transfer member 1301 and ESG metadata store and transfer member 1303 respectively.SA entity 1310 and SM entity 1320 are responsible for transmitting ordinary file and ESG respectively.In SA entity 1310 or SM entity 1320, provide the ESG request of repairing to determine parts 1300 or 1302.Yet, in first and second example embodiment, in SA entity 1310, provide the request of reparation to determine parts 1300.In the 3rd example embodiment, in SM entity 1320, provide and determine parts 1302.
Ordinary file is delivered to the IP wrapper (encapsulator) 1304 of DVB-H entity 1330, and not by SM entity 1320.IP wrapper 1304 is encapsulated as motion image expert group 2 (MPEG2) transport stream (TS) with the IP stream of input.MPEG2 TS together with corresponding to another MPEG2 TS of TV (TV) stream by multiplexed.DVB modulator 1305 is modulated to Orthodoxy Frequency Division Multiplex (OFDM) code element with multiplexed TS.Transmit this OFDM code element via antenna.
Figure 14 is the block diagram that illustrates according to the structure of receiver of the present invention.
With reference to Figure 14, DVB receiver 1410 is via antenna receiving signal.1400 pairs of signals that received of DVB demodulator are carried out the OFDM demodulation process.Demultiplexer is separated into packaged IP grouping and MPEG2 TS grouping with institute's demodulated data.Data processor is to a series of processing of TS grouping execution, so that the user can watch the service that is associated.IP decapsulator (decapsulator) 1401 is IP stream with packaged IP group demodulating.This IP stream is output to file receiver 1402.Determine that parts 1403 definite IP streams are ordinary file or ESG.If IP stream is ESG, then ESG processor 1404 receives and stores this ESG.If IP stream is ordinary file, then general file processor 1405 receives and stores this ordinary file.
Clearly, the present invention can realize that the process that transmits the request of reparation when ESG transmits error and receive the ESG that is retransmitted takes place terminal in receiving the ESG process from top description.The ESG that error occurs can be retransmitted then and be received by terminal.
Although for illustrated purpose discloses example embodiment of the present invention.But it will be apparent to one skilled in the art that without departing from the scope of the invention, can carry out various modifications, interpolation and replacement.Therefore, the invention is not restricted to the embodiments described, but limited by the four corner of ensuing claim and their equivalent.
Claims (33)
1. one kind is used to dispose the method that electronic service guidebooks (ESG) transmits error in digital video broadcast system, comprises the steps:
From the Service Management entity after terminal broadcasting ESG, the service application entity receives file repairing requiring message from terminal;
When file repairing requiring message is request for ESG, transmit file repairing requiring message and from the address of the terminal of its transmission file repairing requiring message to the Service Management entity from the service application entity;
Logic ESG polymerizer in the Service Management entity, that be used for generating ESG, instrument of interpretation is repaired request message, and determines whether to retransmit ESG to terminal;
When determine retransmitting ESG, send the address of ESG metadata and terminal from logic ESG polymerizer interactive server in the Service Management entity, that be used to transmit ESG; And
Transmit the ESG metadata from interactive server to terminal.
2. according to the method for claim 1, also comprise:
The service application entity is used the file address be included in the request message, determines that file repairing requiring message is to the request of ESG or to the request of ordinary file.
3. according to the process of claim 1 wherein that this document reparation request message comprises: the HTTP(Hypertext Transport Protocol) message of using when carrying out the file reparation request of ordinary file.
4. according to the method for claim 1, also comprise:
When determining not when terminal retransmits ESG, to send definite information to the service application entity from logic ESG polymerizer; And
Generation comprises the response message of described definite information; And
Transmit the response message that is generated to terminal from the service application entity.
5. according to the method for claim 4, also comprise:
Terminal is used the transfer address that is included in the described response message, determines whether the ESG re-transmission fails.
6. one kind is used to dispose the method that electronic service guidebooks (ESG) transmits error in digital video broadcast system, comprises the steps:
From the Service Management entity after terminal broadcasting ESG, the service application entity receives file repairing requiring message from terminal;
When file repairing requiring message is request for ESG, transmit file repairing requiring message and from the address of the terminal of its transmission file repairing requiring message to the Service Management entity from the service application entity;
Logic ESG polymerizer in the Service Management entity, that be used for generating ESG, instrument of interpretation is repaired request message, and determines whether to retransmit ESG to terminal;
When determining to retransmit ESG, send the address of ESG metadata and terminal to the service application entity from logic ESG polymerizer; And
Transmit the ESG metadata from the service application entity to terminal.
7. according to the method for claim 6, also comprise:
The service application entity is used the file address be included in the request message, determines that file repairing requiring message is to the request of ESG or to the request of ordinary file.
8. according to the method for claim 6, wherein file repairing requiring message comprises: the HTTP(Hypertext Transport Protocol) message of using when carrying out the file reparation request of ordinary file.
9. according to the method for claim 6, also comprise:
When determining not retransmit ESG, send definite information to the service application entity from logic ESG polymerizer; And
Generation comprises the response message of described definite information; And
Transmit the response message that is generated to terminal from the service application entity.
10. according to the method for claim 9, also comprise:
Terminal is used the network address and the filename that is included in the described response message, determines whether the ESG re-transmission fails.
11. one kind is used to dispose the method that electronic service guidebooks (ESG) transmits error in digital video broadcast system, comprises the steps:
From the Service Management entity after terminal broadcasting ESG, the Service Management entity receives file repairing requiring message from terminal;
Use ESG to repair request message, the interactive server being used for transmitting from the Service Management entity ESG determines whether to retransmit ESG;
When determine retransmitting ESG, transmit the ESG retransmission request message to logic ESG polymerizer in the Service Management entity, that be used to generate ESG from interactive server;
Transmit the address of ESG metadata and terminal to interactive server from logic ESG polymerizer; And
Transmit the ESG metadata from interactive server to terminal.
12. according to the method for claim 11, wherein terminal detects ESG and transmits error, and transmits file repairing requiring message.
13. according to the method for claim 11, wherein file repairing requiring message comprises: HTTP(Hypertext Transport Protocol) message.
14. the method according to claim 11 also comprises the steps:
When determining not retransmit ESG, generate the response message that comprises definite information, and transmit the response message that is generated to terminal from logic ESG polymerizer.
15. according to the method for claim 14, wherein terminal is used transfer address, receiver address and the filename that is included in the described response message, determines whether the ESG re-transmission fails.
16. one kind is used to dispose the equipment that electronic service guidebooks (ESG) transmits error in digital video broadcast system, comprises:
The service application entity is used for receiving file repairing requiring message from terminal, and determines whether to retransmit ESG; And
The Service Management entity is used to generate ESG, and the ESG to terminal broadcasting is generated receives file repairing requiring message from the service application entity, and determine whether to retransmit ESG, and transmit the ESG metadata to terminal based on the result who determines,
Wherein, when file repairing requiring message was request for ESG, the service application entity provided the address of file repairing requiring message and terminal to the Service Management entity; And
Service Management entity instrument of interpretation is repaired request message, determines whether to retransmit ESG to terminal, and transmits the ESG metadata based on the result who determines to terminal.
17. according to the equipment of claim 16, wherein the Service Management entity comprises:
Logic ESG polymerizer is used to generate ESG, receives request message from the service application entity, and determines whether to retransmit ESG; And
Interactive server is used for transmitting the ESG that is generated to terminal, receives the ESG metadata from logic ESG polymerizer, and transmits the ESG metadata that is received to terminal.
18. according to the equipment of claim 16, wherein serve application entity and use the file address be included in the file repairing requiring message, determine that file repairing requiring message is to the request of ESG or to the request of ordinary file.
19. according to the equipment of claim 16, wherein file repairing requiring message is the HTTP(Hypertext Transport Protocol) message of using when carrying out the file reparation request of ordinary file.
20. according to the equipment of claim 17, wherein:
When determining that not when terminal retransmits ESG, logic ESG polymerizer is sent definite information to the service application entity; And the service application entity generates response message that comprises described definite information and the response message that is generated to the terminal transmission.
21. according to the equipment of claim 20, wherein terminal is used the transfer address that is included in the described response message, determines whether the ESG re-transmission fails.
22. one kind is used to dispose the equipment that electronic service guidebooks (ESG) transmits error in digital video broadcast system, comprises:
The service application entity is used for receiving file repairing requiring message from terminal, and determines whether to retransmit ESG; And
The Service Management entity is used to generate ESG, and the ESG to terminal broadcasting is generated receives request message from the service application entity, determines whether to retransmit ESG, and transmits ESG metadata via the service application entity to terminal based on the result who determines,
Wherein, when file repairing requiring message was request for ESG, the service application entity provided request message and from the address of its terminal that sends a request message to the Service Management entity; And
The Service Management entity is explained request message, and determines whether to retransmit ESG to terminal.
23. according to the equipment of claim 22, wherein the Service Management entity comprises:
Logic ESG polymerizer is used to generate ESG, receives request message from serving application entity, determines whether to retransmit ESG, and when determining to retransmit ESG, to service application entity transmission ESG metadata; And
Interactive server is used for transmitting the ESG that is generated to terminal.
24. according to the equipment of claim 22, wherein serve application entity and use the file address be included in the request message, determine that file repairing requiring message is to the request of ESG or to the request of ordinary file.
25. according to the equipment of claim 22, wherein file repairing requiring message is the HTTP(Hypertext Transport Protocol) message of using when carrying out the file reparation request of ordinary file.
26. according to the equipment of claim 23, wherein:
When determining not retransmit ESG, logic ESG polymerizer is sent definite information to the service application entity; And
The service application entity generates the response message that comprises described definite information, and
Transmit the response message that is generated to terminal.
27. according to the equipment of claim 26, wherein terminal is used the network address and the filename that is included in the described response message, determines whether the ESG re-transmission fails.
28. one kind is used to dispose the equipment that electronic service guidebooks (ESG) transmits error in digital video broadcast system, comprises:
Interactive server is used for receiving ESG from terminal and repairing request message to terminal broadcasting ESG, explains this request message, and determines whether to retransmit ESG to the terminal that transmits this request message; And
Logic ESG polymerizer is used to generate ESG, receives the ESG repeat requests based on the result who determines of interactive server, and transmits the ESG metadata to interactive server, and described interactive server transmits the ESG metadata that receives from logic ESG polymerizer to terminal.
29. according to the equipment of claim 28, wherein interactive server and logic ESG polymerizer are provided in the Service Management entity.
30. according to the equipment of claim 28, wherein terminal detects ESG transmission error and transmits request message.
31. according to the equipment of claim 28, wherein file repairing requiring message comprises: HTTP(Hypertext Transport Protocol) message.
32. according to the equipment of claim 28, wherein when determining not retransmit ESG, logic ESG polymerizer generates the response message that comprises described definite information, and transmits the response message that is generated to terminal.
33. according to the equipment of claim 32, wherein terminal is used transfer address, receiver address and the filename that is included in the described response message, determines whether the ESG re-transmission fails.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050115154 | 2005-11-29 | ||
| KR20050115154 | 2005-11-29 | ||
| KR1020060077363 | 2006-08-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101336548A true CN101336548A (en) | 2008-12-31 |
Family
ID=38354593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006800519943A Pending CN101336548A (en) | 2005-11-29 | 2006-11-29 | Method and apparatus for handling an electronic service guide transmission error in a digital video broadcasting system |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2009517963A (en) |
| KR (1) | KR100876766B1 (en) |
| CN (1) | CN101336548A (en) |
| RU (1) | RU2383996C2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090076765A (en) * | 2008-01-09 | 2009-07-13 | 삼성전자주식회사 | Esg discovery apparatus and method in cbms |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990056468A (en) * | 1997-12-29 | 1999-07-15 | 전주범 | How to Abandon an Error Program Guide Packet in a Satellite Broadcast Receiver |
| US6289054B1 (en) * | 1998-05-15 | 2001-09-11 | North Carolina University | Method and systems for dynamic hybrid packet loss recovery for video transmission over lossy packet-based network |
| KR100279735B1 (en) * | 1998-11-20 | 2001-02-01 | 정선종 | Multimedia Content Delivery Method Using Metadata |
| KR100460970B1 (en) * | 2002-01-10 | 2004-12-09 | 삼성전자주식회사 | Data transmitting/receiving system and method thereof |
-
2006
- 2006-08-16 KR KR1020060077363A patent/KR100876766B1/en not_active IP Right Cessation
- 2006-11-29 RU RU2008121603/09A patent/RU2383996C2/en not_active IP Right Cessation
- 2006-11-29 CN CNA2006800519943A patent/CN101336548A/en active Pending
- 2006-11-29 JP JP2008543197A patent/JP2009517963A/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| KR100876766B1 (en) | 2009-01-07 |
| KR20070056924A (en) | 2007-06-04 |
| JP2009517963A (en) | 2009-04-30 |
| RU2383996C2 (en) | 2010-03-10 |
| RU2008121603A (en) | 2009-12-10 |
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Open date: 20081231 |