WO2009036635A1

WO2009036635A1 - Difference update system and method for electronic service guide

Info

Publication number: WO2009036635A1
Application number: PCT/CN2007/003805
Authority: WO
Inventors: Zunyou Ke
Original assignee: Zte Corporation
Priority date: 2007-09-19
Filing date: 2007-12-26
Publication date: 2009-03-26
Also published as: CN101127961B; CN101127961A

Abstract

A difference update method for an electronic service guide comprises: after a user terminal sends a difference ESG update request to an electronic service guide ESG server through a bi-directional network, the ESG server returns the difference ESG update data meeting the update request to the user terminal through the bi-directional network, and the user terminal updates the local ESG data according to the difference ESG update data. A difference update system for the electronic service guide comprises an electronic service guide ESG server and a user terminal, and further comprises a mobile communication network for transmitting the difference ESG update request sent by the user terminal to the ESG server and for transmitting the difference ESG update data meeting the update request returned by the ESG server to the user terminal.

Description

Differential update system and method for electronic business guide

Technical field

The invention belongs to mobile multimedia broadcasting technology, and in particular relates to a differential updating system of an electronic service guide and a method thereof.

Background technique

Electronic Service Guide The ESG (Electronic Service Guide) or Electronic Program Guide is a multi-media broadcast service information navigation information. It is a method for operators to manage and publish services, and is also a window for users to discover and use services. Through ESG information, users can understand information about mobile multimedia broadcast services, such as service name, play time, content outline, price, etc., and realize fast retrieval, preview and access to services; in addition, ESG information is for users to watch TV programs. And enjoy the information service provides a good navigation mechanism, so that users can quickly and easily find the programs they care about, and view the additional information of the program. Therefore, the ESG client becomes an important path and tool for users to watch programs.

With the rich amount of ESG information, effectively updating the ESG information of the terminal becomes an important issue. Currently, the data information sent by the ESG unidirectional broadcast, that is, the ESG broadcast data, can be divided into multiple data blocks as needed. These data blocks can be classified according to ESG data types, including industry information, programming information, program content information, and business parameter information. The terminal update operation is performed according to the change of the data block version number that can be known.

However, due to the difference in user habits of the terminal, the version numbers of these ESG data blocks cached on each terminal are not the same. In other words, in the process of updating the local ESG information, the user terminal has different update bases because the existing data block version numbers are different, so the data actually needed to complete the update is different. If the number of data blocks to be transmitted during the update process is relatively large, for example, more than 100, the broadcast will take a long time, for example, more than 15 seconds. In addition, the way of broadcasting is limited by bandwidth, etc., and it will not be possible to introduce update differences for different user terminals due to different versions of respective ESG data information. Thus, the terminal needs to tell the network server its own different update needs. If the mobile multimedia one-way broadcasting system is simply used, the difference requirement of the terminal update cannot be met economically, and the ESG data transmission and the terminal update local ESG data information will be brought true. The current problem.

Summary of the invention

The technical problem to be solved by the present invention is to provide a differential update system and method for the electronic service guide, so as to meet the difference requirement of the user terminal update in the process of updating the local ESG information by the user.

In order to solve the above technical problem, the present invention provides a differential update method for an electronic service guide, specifically, after the user terminal initiates a differential ESG update request to the electronic service guide ESG server through the two-way network, the ESG server passes the two-way network. The differential ESG update data satisfying the update request is returned to the user terminal, and the user terminal updates the local ESG data according to the differential ESG update data.

Further, the above method may further have the following feature, and the two-way network is a mobile communication network. Further, the foregoing method may further have the following features, the method further includes: the user terminal receiving ESG data information from a one-way broadcast network, and the ESG data information in the local cache and the ESG data received from the one-way broadcast network. After the information is compared, it is determined that a differential ESG update request needs to be initiated, and a differential ESG update request message is sent to the ESG server through the mobile communication network.

Further, the foregoing method may further have the following feature: at least one of the ESG data in the local cache and the data type identification information, the data block identification information, and the data block version number information of the ESG data received by the user terminal from the one-way broadcast network. When the items are different, the user terminal determines that a differential ESG update request needs to be initiated to the ESG server.

Further, the foregoing method may further have the following feature: the differential ESG update request message carries any one of data type identification information, data block identification information, or data block version number information or a combination thereof.

Further, the foregoing method may further have the following feature: the differential ESG update data sent by the ESG server carries any one of data type identification information, total data block information, or data block description information, or a combination thereof, where the data block description The information is any one or a combination of data block identification information, data block version number information, and document information corresponding to ESG data information of one or more data blocks. Further, the foregoing method may further have the following feature, where the data block version number in the differential ESG update data is the latest version number.

A differential update system for an electronic service guide, comprising an electronic service guide ESG server and a user terminal, characterized in that the mobile communication network is further configured to forward the differential ESG update request initiated by the user terminal to the ESG server, and is further used for The ESG server returns the differential ESG update data that satisfies the update request and forwards it to the user terminal.

Further, the above system may further have the following features, and further includes a unidirectional broadcast network, configured to broadcast and transmit ESG data to the user terminal, and the user terminal compares the ESG data in the local cache with the ESG data received from the unidirectional broadcast network. The type identification information, the data block identification information, and the data block version number information are compared. When any one of them is different, the user terminal determines that a differential ESG update request needs to be initiated to the ESG server.

Further, the foregoing system may further have the following feature: the differential ESG update data sent by the ESG server carries any one of data type identification information, total data block information, or data block description information, or a combination thereof, where the data block description The information is any one or a combination of data block identification information, data block version number information, and document information corresponding to ESG data information of one or more data blocks.

The invention realizes the interaction between the user terminal and the ESG server in the process of updating the ESG data on the basis of the one-way broadcast network of the mobile multimedia broadcasting system, and the difference in the requirements of the terminal to update the ESG information. BRIEF abstract

1 is a schematic diagram of a network structure in an embodiment in which the technical solution of the present invention is adopted;

2 is a flow chart of implementing the ESG differential update by the system shown in FIG. 1;

3 is a schematic diagram of a structure of a control multiplexing frame carrying information of an ESG basic description table in an embodiment; FIG. 4 is a schematic diagram of a broadcast request message sent by a one-way broadcast network to an ESG server in the embodiment;

FIG. 5 is a schematic diagram of a response message returned by an ESG server to a one-way broadcast network in an embodiment. Preferred embodiment of the invention

The main idea of the present invention is to implement an update of an electronic service guide by a mobile user terminal in combination with a mobile communication network based on a one-way broadcast network of a mobile multimedia broadcast system. The mobile communication network realizes the interaction between the user terminal and the ESG server, that is, after receiving the ESG data from the one-way broadcast network, the user terminal compares with the locally stored ESG data information to determine whether to initiate a differential update request, if necessary And sending, by the mobile communication network, a differential ESG update request to the ESG server, and the ESG server returns, to the user terminal, the differential ESG update data that meets the update request by using the mobile communication network, and the user terminal updates the data through the differential ESG to finally the local ESG data. Update. The above mobile communication network may also be another two-way network for implementing interaction between the user terminal and the ESG server.

The technical solution of the present invention and its implementation will be further described below with reference to the accompanying drawings.

A differential update system for an electronic service guide, as shown in FIG. 1, includes an ESG server S101, a one-way broadcast network S102, a user terminal S104, and a mobile communication network S103. among them:

The ESG server S101 can update the data information request in response to the difference ESG and send the differential update ESG data. For the data block that needs to be updated, the ESG server provides the latest version of the ESG data information of the data block.

The existing functions of the ESG server include: managing various data information of the ESG, system configuration data of the ESG server, etc.; generating one or more data blocks for use in broadcast or differential update; and encapsulating ESG data information according to the specification requirements; ESG basic description table; responding to ESG data requests sent by the unidirectional broadcast network; transmitting ESG data to the unidirectional broadcast network.

The ESG server divides the ESG data information into a plurality of parts according to rules, that is, a plurality of data blocks, and establishes a correspondence between the data block and the data block identifier, and the data block is a subset of the set of elements having the same data type identifier.

The ESG basic description table includes the ESG service identifier, each ESG data type identifier, the data block identifier, and the data block version number. The ESG service identifier used by the data block can be indexed, and the terminal can be quickly searched for the corresponding multiplexing frame. And receive the ESG data block to prompt. Data type identifier, used to identify the type of ESG data table carried by the ESG data payload. A data block identifier, which is used to identify a data block to which the ESG data payload belongs, and uniquely identify a data block along with the data type identifier.

The data block version number indicates the current version number of the data block. When the data block changes, it is incremented by 1 or other agreed way to indicate the version change. For example, different letters are used to indicate the version height.

The ESG service identifier indicates the identifier of the ESG service and follows the reuse specification.

The response message sent by the ESG server to the ESG data request and the differential ESG update data information request includes at least the following parameters: a data type identifier, a total number of data blocks, a data block description, and a description of each data block includes at least one of the following parameters: : The data block identifier and its version number, and the XML document of the corresponding ESG data information of one or more data blocks. The data type field of the response message sent by the ESG server includes the following three types: indicating basic description table data, ESG information table data, or program prompt information.

The one-way broadcast network S102 includes a multiplexer that interfaces with the ESG server S101, a one-way broadcast wireless modulation transmission system, and the like, and has the same functions as the prior art.

The multiplexer receives data of three types of data: an ESG basic description table, an ESG information table data, and a program prompt information transmitted by the ESG server. The interface between the multiplexer and the ESG server is communicated by TCP. The ESG server acts as the server side of TCP, and the multiplexer acts as the client of TCP. After the ESG server establishes a TCP link with the multiplexer, the multiplexer sends a broadcast ESG request message to the ESG server every 1 second through the interface message, and the ESG server sends one or more response messages. The interface message data can be transmitted in a unified network byte order according to the prior art.

The mobile communication network S103, such as GPRS or CDMA, includes a core network and an access network system of the mobile communication network, and supports interactive functions such as PS domain HTTP.

The user terminal S104 may be a mobile terminal such as a PDA, a mobile phone, or an in-vehicle mobile station, and its functions include: receiving broadcast ESG data; parsing the broadcasted ESG data; comparing the received ESG data Determining whether to request differential update of ESG data; requesting differential update of ESG data if necessary; receiving differential update ESG data; parsing differential update ESG data; The local ESG data is updated, and the update content includes basic description table information and ESG table data information.

The user terminal analyzes the information in the basic description table, and includes at least one of the following parameters: a data type identifier, a data block identifier, and a version number thereof to determine whether an ESG data request needs to be initiated.

The request difference update message describes a current state of the user terminal, does not include a parameter or at least includes one of the following parameters: a data type identifier, a data block identifier, and a version number thereof.

Figure 2 shows the flow of the differential update method for implementing the electronic service guide of the above system, including the following steps:

201: The multiplexer of the one-way broadcast network sends a broadcast ESG request to the ESG server; in this step, the format of the request message data sent by the multiplexer to the ESG server is as shown in FIG. 4 .

202: The ESG server responds to the multiplexer request, and sends the ESG data to the one-way broadcast network; in this step, the response message data format sent by the ESG server to the multiplexer is as shown in FIG. 5, and the “data communication part of the response message” ", that is, the content of the data payload is defined by the above ESG server data encapsulation method, as in the prior art.

The descriptions of the parameters in the request and response messages in steps 201 and 202 are as shown in Table 1: Table 1

The service identifier 2 bytes has no such field for the data request message sent by the multiplexer;

For the response message sent by the ESG server, the meaning of this field is as follows: For the ESG basic description table, this element takes a value of 0; for ESG data information, this element has an arbitrary value in the range of 0x0040 to OxOOFF; The program prompt information is consistent with the service identifier of the service.

Data length 4 bytes For the data request message sent by the multiplexer, this field indicates the second.

The maximum length that ESG data information can be sent. (The maximum length of the ESG program prompt information and the ESG basic description table is not determined by the message);

For the data response message sent by the ESG server, this number indicates the number of bytes of the actual communication data portion.

System time 8 bytes for the data request message sent by the multiplexer, this field indicates the time of the multiplexer, the valid bit is 40 bits, the first 16 bits represent the MJD date code; the last 24 bits are encoded by the 4 bit BCD, a total of 6 numbers Indicates the time accurate to the second.

This field is not available for data reply messages sent by the ESG server.

Long communication covariance For the data request message sent by the multiplexer, there is no such field.

Partially For the data reply message sent by the ESG server, this part is the ESG data.

203: The one-way broadcast network forwards the ESG data to the terminal.

204: The user terminal receives and analyzes the ESG data;

In this step, the user terminal analyzes the information in the basic description table of the received ESG data, and compares with the corresponding information in the basic description table of the ESG data in the local cache, and can compare one or more information, for example: data type identification information Data block identification information and its version number information, when the received ESG data is different from the information in the basic description table of the ESG data in the local cache, it is determined that the differential ESG update data request needs to be initiated, and step 205 is performed, otherwise the process ends. the entire process.

In particular, the terminal may also decide whether to perform step 205 according to the timing of receiving the broadcast ESG data information, such as powering on, watching, browsing ESG, and the like.

205: The user terminal initiates a differential ESG update data request to the mobile communication network. In this embodiment, the difference ESG update data request message is as follows:

POST <Request URI> HTTP/1.1

Host:

User-Agent: Content-Type:

Content-Length:

Date:

Accept:

The parameters of the difference in the ESG update data request message are as shown in Table 2:

Table 2

In the above table, the request message ^& 1 (^(1> describes the current state of the user terminal, including at least one of the following parameters: data type identifier, data block identifier or its version number.

206: The mobile communication network forwards the ESG update data request to the ESG server;

207: The ESG server prepares data of the ESG differential update according to the request of the user terminal. In this step, the ESG server typically implements the method for processing the differential update data, including managing one or more versions of the ESG data information, and identifying by the data type. The data block identifier and its version number generate the corresponding ML document, which is sent when the differential update response is sent.

For example: The ESG server currently has 2 data blocks, identified as block 1, block 2, and the version numbers are 3, 3 respectively. Previously, the ESG server should generate the XML file of the ESG data information for the update of the data block 2 version 3 in time. , update document 1; and generate data block 1 version 3 update with ML document for ESG data information, update document 2. When a user terminal UE1 updates the previous data block 1, The data block 2 version number is 3, 2, and the ESG server responds to update the message 1 after the update request. If there is another terminal UE2 requesting to update the ESG data information, since the current one or more data types, block identifiers, and version numbers are different from UE1, the response content of the ESG server to UE2 is different. That is, if the data block 1 and the version number of UE2 are 1, 2, respectively, the ESG server should update the document 1 and update the document 2 in response to the response of the UE 2.

208: The ESG server returns data of the ESG differential update to the mobile communication network; in this step, the data message of the ESG differential update is returned as follows:

HTTP/1.1 200 OK

Server:

Content-Type:

Content-Length:

Date:

Expires:

The parameters in the data message of the ESG differential update returned above are as shown in Table 3: Table 3

The ESG differentially updated data message ^&1()&(includes at least one of the following parameters: data type identifier, total number of data blocks, or data block description, where each data block description includes at least one of the following parameters: data The block identifier and its version number, and the ML document of the corresponding ESG data information for one or more data blocks. 209: The mobile communication network forwards the data of the ESG differential update to the user terminal;

210: The user terminal receives the ESG differential update data, and updates the local ESG data, where the update content includes basic description table information and ESG table data information.

In this implementation, during the process of sending the ESG data message by the ESG server through the unidirectional broadcast network, the ESG basic description table of the ESG data is transmitted by controlling the multiplexed frame, and the user terminal receives the latest ESG data block description information of the current system server, including the version number. , wherein the control multiplexing frame structure is as shown in FIG. 3.

A multiplex frame of MF_ID = - 0 is used to carry control information, and the cartridge is called a control multiplex frame, and is transmitted using a control logical channel. At this time, a control information table is used as a multiplex subframe. That is, the control multiplex frame payload is composed of several control information tables. It contains the ESG basic description table. The table identification number is 0x06.

The description table includes each ESG data type identifier, a data block identifier, and a data block version number, and can index the ESG service identifier used by the data block, and further, the terminal can quickly search for the corresponding multiplexing frame and receive the ESG data. Block with hints.

The data type identifier, which occupies a 4-bit field, identifies the type of the ESG data table carried by the ESG data payload, as shown in Table 4:

Table 4

The data block identifier, occupying an 8-bit field, identifies the ESG ^: according to the data block to which the payload belongs, and uniquely identifies a data block together with the data type identifier.

The data block version number, occupying a 4-bit field, indicates the current version number of the data block, and is incremented by 1 when the data block changes. The ESG service identifier, which occupies a 16-bit field, indicates the identifier of the ESG service. The allocation rule follows the multiplexing specification in the prior art. The service identifier is allocated as shown in Table 5:

table 5

The above embodiment combines the mobile communication network with the one-way broadcast network of the mobile multimedia broadcast system, and realizes the interaction between the user terminal and the ESG server during the ESG data update process, thereby satisfying the difference requirement of the user terminal updating the ESG information.

The above-mentioned embodiments are not intended to limit the technical solutions of the present invention. Any equivalents or corresponding improvements made by those skilled in the art to the technical features of the present invention are still within the scope of the present invention.

Industrial applicability

The invention combines the mobile communication network on the basis of the one-way broadcast network of the mobile multimedia broadcast system, and realizes the interaction between the user terminal and the ESG server in the ESG data update process, thereby satisfying the difference requirement of the user terminal updating the ESG information.

Claims

Claim

A differential update method for an electronic service guide, characterized in that after the user terminal initiates a differential ESG update request to the electronic service guide ESG server through the two-way network, the ESG server returns an update to the user terminal through the two-way network. The requested differential ESG update data, the user terminal updates the local ESG data according to the differential ESG update data.

2. The method of claim 1 wherein the two-way network is a mobile communication network.

3. The method according to claim 2, wherein the method further comprises: the user terminal receiving ESG data information from a one-way broadcast network, and collecting ESG data information in the local cache from the one-way broadcast network. The ESG data information is compared, and after determining that a differential ESG update request needs to be initiated, the differential ESG update request is sent to the ESG server through the mobile communication network.

The method according to claim 3, wherein if the ESG data in the local cache and the ESG data received by the user terminal from the unidirectional broadcast network, the data type identification information, the data block identification information, and the data block version number When at least one of the information is different, the user terminal determines that a differential ESG update request needs to be initiated to the ESG server.

The method according to any one of claims 1 to 4, wherein the differential ESG update request message carries any one of data type identification information, data block identification information or data block version number information or Its combination.

The method according to claim 1, wherein the differential ESG update data sent by the ESG server carries any one of data type identification information, total data block information, or data block description information, or a combination thereof. The data block description information is any one or a combination of data block identification information, data block version number information, and document information corresponding to ESG data information of one or more data blocks.

The method according to claim 6, wherein the data block version number in the differential ESG update data is the latest version number.

A differential update system for an electronic service guide, comprising an electronic service guide ESG server and a user terminal, characterized in that the mobile communication network is further configured to forward the differential ESG update request initiated by the user terminal to the ESG server, The differential ESG update data for satisfying the update request returned by the ESG server is forwarded to the user terminal.

9. The system according to claim 8, further comprising a unidirectional broadcast network, configured to broadcast and transmit ESG data to the user terminal, and the user terminal receives the ESG data in the local cache from the one-way broadcast network. The data type identification information, the data block identification information, and the data block version number information of the ESG data are compared. When at least one item is different, the user terminal determines that a differential ESG update request needs to be initiated to the ESG server.

The system according to claim 8, wherein the differential ESG update data sent by the ESG server carries any one of data type identification information, total data block information, or data block description information, or a combination thereof. The data block description information is any one or a combination of data block identification information, data block version number information, and document information corresponding to ESG data information of one or more data blocks.