WO2010009662A1

WO2010009662A1 - Method and apparatus for receiving electronic service guide data

Info

Publication number: WO2010009662A1
Application number: PCT/CN2009/072818
Authority: WO
Inventors: 晏祥彪; 王标
Original assignee: 中兴通讯股份有限公司
Priority date: 2008-07-24
Filing date: 2009-07-17
Publication date: 2010-01-28
Also published as: CN101325462A; CN101325462B

Abstract

A method and apparatus for receiving the electronic service guide ESG data are provided. The ESG control information table is stored previously in the receiving end, where the ESG control information table includes: the ESG service identifier, and the multiplexing frame identifier and the physical broadcasting channel parameters corresponding to the ESG service identifier; the ESG data is received from the ESG service logical channel according to the ESG service identifier, the multiplexing frame identifier and the physical broadcasting channel parameters. According to the invention, frequent switches of the receiving channels are avoided, thus the receiving speed is accelerated, there’s no need for the terminal to have the ability of receiving two channels simultaneously, and the quick acquisition of the related multimedia service according to the ESG by the user is ensured.

Description

Method and device for receiving electronic service guide data

Technical field

The present invention relates to the reception of service data for mobile multimedia broadcasting, and more particularly to a method and apparatus for receiving electronic service guide data.

Background technique

Mobile multimedia broadcast network users use the electronic service guide (ESG, Electronic Service Guide) or EPG (Electronic Program Guide) navigation to understand the relevant information of the mobile multimedia broadcast service and realize the business Fast retrieval, preview and access. The related information of the mobile multimedia broadcasting service includes a service name, a play time, a content outline, and a price. ESG provides a good navigation mechanism for users to watch TV programs and enjoy information services, so that users can quickly and easily find the programs they care about and view the additional information of the programs. In the CMMB mobile multimedia broadcasting system, the electronic service guide mainly consists of the following information or data:

(1) Basic description information for describing the version of the electronic service guide and the information transmitted by the ESG, that is, the data index information of the electronic program guide;

(2) ESG data information, which is used as the main data for describing the electronic service guide, that is, information for describing the service, content, and program broadcast notice and service access parameters;

(3) Program prompt information, used to predict the information of the current channel being played and the name of the program to be played in time is long.

When the mobile multimedia broadcast receiving terminal works, it is required to search for the working frequency of the mobile multimedia broadcast network to receive the multimedia broadcast signal to use the multimedia broadcast service, and the electronic service guide is also one of the multimedia broadcast services. When receiving the electronic service guide data to provide the user with the service navigation, the terminal device first needs to receive the basic description information of the ESG, obtain the network information including the ESG service, the frequency point information, the service identifier, and the like, and then find the ESG data information according to the content. The transmission channel includes a multiplexed frame identifier and a multiplexed subframe, and finally receives the ESG data information and presents it to the user.

Figure 1 shows a system block diagram of the ESG information of the CMMB mobile multimedia broadcast, the system ^^ is composed of CMMB network. According to the CMMB technology system, the CMMB system forms one or more independent mobile multimedia broadcast networks due to different geographical scopes and transmission modes, among which:

The basic description information of the ESG and the service configuration information of the entire network are respectively encapsulated in the control information table, that is, the ESG basic description table and the service configuration table, in the multiplexing frame 0, and modulated on the control logical channel of each frequency point, for example, 2, wherein the basic description information includes network information (network number, network name, and network level) and ESG additional information; network information is used to indicate the current ESG working network; ESG additional information includes: service identification information, ESG data The data type and version number of the information; wherein, the service identifier is used to obtain the multiplex frame identifier and the physical broadcast channel parameters (such as: modulation parameters, coding parameters, interleaving mode, etc.); the service configuration information includes: service identifier and frequency point Correspondence relationship.

The ESG data information is encapsulated in a data segment of a specific multiplex subframe of the non-multiplexed frame, and modulated on the service logical channel of the specific frequency point, as shown in FIG.

The program prompt information and the audio and video data are respectively encapsulated in the data segment, the audio segment, and the video segment of the multiplex subframe of the non-zero multiplex frame, and modulated in the service logical channel of each frequency point for transmission, as shown in FIG. Show.

Based on the above system, the CMMB terminal ESG data receiving processing flow, see FIG. 5, includes the following steps:

Step 100b: The user selects or searches for a CMMB network through the CMMB terminal. Step 200b: The user selects one of the frequency points of the current network working in the CMMB terminal to enter;

Step 300b: The CMMB terminal receives the ESG basic description table and the service configuration table from the control logic channel of the user selection frequency point;

The basic description information of the ESG is parsed and recorded from the ESG basic description table, including the data type and version of the ESG data information, and the service identifier of the service logical channel where the data corresponding to the data type is located; and the query is performed according to the service identifier from the service configuration table. Specific frequency information of ESG data information.

Step 310b: The CMMB terminal switches to the service logical channel of the specific frequency point according to the service identifier of the ESG data and the like to receive (or update) the processed ESG data information. That is, the specific frequency point of the work is determined in the service configuration table by using the service identifier, and the multiplexing logic configuration table is received on the control logic channel of the specific frequency point, and then the corresponding configuration is found in the multiplexing configuration table according to the service identifier. a specific multiplexed frame identifier (including a multiplexed subframe identifier in each multiplexed frame, unless otherwise specified, the multiplexed frame identifier in the present application includes a multiplexed subframe identifier in the multiplexed frame) And extracting ESG data information from the specific multiplex subframe data segment in combination with the received physical broadcast channel parameter corresponding to the service identifier.

Step 320b: The CMMB terminal parses and displays the ESG data information, and the user navigates and selects the service using the mobile multimedia broadcast service.

It can be seen that the above receiving process is a serial processing mode, and it takes time to perform the reception of the ESG basic description table to acquire the parameters of the service logical channel of the ESG data, and then use these parameters to receive the ESG data.

Since the basic description information of the ESG needs to be received on the control channel of the mobile multimedia broadcast, and the ESG data information is transmitted on the service logical channel, the program such as the television is transmitted on another service transmission channel. According to the above receiving method, the terminal device receives the ESG. When data is used, it needs to be switched frequently between different receiving channels. Switching will consume time, which will affect the receiving speed of the terminal device and the normal viewing of the user. If the impact of switching is to be avoided, the terminal usually needs to receive 2 or more simultaneously. The channel data will increase the processing power of the terminal and increase the cost of the terminal.

Summary of the invention

It is an object of the present invention to provide a method and apparatus for receiving electronic service guide data to avoid frequent switching of receive channels. In order to achieve the above object, the present invention provides an electronic service guide ESG data receiving method, the method comprising:

The receiving end pre-saves the ESG control information table, where the ESG control information table includes:

An ESG service identifier, and a multiplexing frame identifier and a physical broadcast channel parameter corresponding to the ESG service identifier;

ESG service according to the ESG service identifier, multiplex frame identifier, and physical broadcast channel parameters The logical channel receives ESG data.

Further, the receiving end further stores a multimedia control information table, where the multimedia control information table includes: a plurality of multimedia service identifiers, and a multiplex frame identifier and a physical broadcast channel parameter corresponding to the multimedia service identifier.

Further, when the multimedia control information table is further stored in the receiving end, the method further includes: obtaining a multimedia service identifier, and a multiplexing frame identifier corresponding to the multimedia service identifier by querying the multimedia control information table And physically broadcasting channel parameters, and receiving multimedia service data from the multimedia service logical channel according to the multiplex frame identifier and the physical broadcast channel parameter.

Preferably, before the receiving end saves the ESG control information table, the method further includes: acquiring the ESG service identifier and the multiplex frame identifier and the physical broadcast channel parameter corresponding to the ESG service identifier, where the specific obtaining manner is Presetting a default ESG service identifier, and acquiring, by the control terminal, a multiplex frame identifier and a physical broadcast channel parameter corresponding to the default ESG service identifier when the receiver is initialized; or receiving an ESG service from the control channel in advance Identification, and corresponding multiplex frame identification and physical broadcast channel parameters.

Further, before the receiving end saves the multimedia control information table, the method further includes: acquiring the multimedia service identifier, and a multiplexing frame identifier and a physical broadcast channel parameter corresponding to the multimedia service identifier, where the specific acquiring manner is Presetting a default multimedia service identifier, acquiring a multiplex frame identifier and a physical broadcast channel parameter corresponding to the default multimedia service identifier from the control channel when the receiving end is initialized; or receiving the multimedia service from the control channel in advance Identification and corresponding multiplex frame identification and physical broadcast channel parameters. A receiving device for ESG data, the device comprising: a parameter storage module and a receiving processing module; wherein

The parameter storage module is configured to pre-save the ESG service identifier, and a multiplex frame identifier and a physical broadcast channel parameter corresponding to the ESG service identifier;

The receiving processing module is configured to acquire the ESG service identifier from the parameter storage module, and use a corresponding multiplex frame identifier and a physical broadcast channel parameter that are further acquired from the parameter storage module according to the ESG service identifier. The ESG service logical channel receives ESG data.

Further, the parameter storage module is further configured to save a plurality of multimedia service identifiers in advance, And a multiplexing frame identifier and a physical broadcast channel parameter corresponding to the multimedia service identifier; the receiving processing module is further configured to obtain, from the parameter storage module, a multimedia service identifier corresponding to the program selected by the user, and use the The multimedia service identifier is further received by the parameter storage module, and the multiplex frame identifier and the physical broadcast channel parameter corresponding to the multimedia service identifier are received from the multimedia service logical channel.

Preferably, the receiving processing module is further configured to receive, by using a control channel, an ESG service identifier and a multimedia service identifier, and a multiplexing frame identifier and a physical broadcast channel parameter corresponding to the ESG service identifier and the multimedia service identifier, respectively, and save the In the parameter storage module, or the receiving processing module is further configured to acquire, according to the default ESG service identifier and the multimedia service identifier pre-stored by the parameter storage module, the ESG service identifier and the multimedia service respectively during initialization. A corresponding multiplex frame identifier and a physical broadcast channel parameter are identified and stored in the parameter storage module.

Compared with the prior art, the present invention can avoid frequent switching of the receiving channel, thereby speeding up the receiving speed, and does not require the terminal to have the capability of receiving two channels at the same time, thereby ensuring that the user quickly acquires related multimedia services according to the ESG. BRIEF abstract

1 is a schematic diagram of an ESG information transmission system composed of a mobile multimedia broadcast network; FIG. 2 is a schematic diagram of transmission of a mobile multimedia broadcast ESG basic description table;

3 is a schematic diagram of transmission of ESG data information of a mobile multimedia broadcast;

4 is a schematic diagram of the transmission of the prompt information of the mobile multimedia broadcast ESG program;

5 is a flow chart of processing an ESG data received by a mobile multimedia terminal;

6 is a schematic diagram of a method for receiving ESG data according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of an apparatus for receiving ESG data according to an embodiment of the present invention.

Preferred embodiment of the invention

In order to solve the drawbacks of the conventional technical solutions, the present invention further advances through the following specific embodiments. The method and apparatus for receiving ESG data of an electronic service guide according to the present invention are described in detail below, but the detailed description is not to be construed as limiting the invention.

In order to reduce the inter-channel handover, the control information table is pre-built in the mobile multimedia terminal, and the control information table includes two entries: an ESG control information entry and a multimedia control information entry;

The ESG control information entry includes at least: an ESG service identifier, an ESG multiplex frame identifier, and a physical broadcast channel parameter, and the three have a mutual correspondence relationship, and the ESG service identifier corresponds to the ESG multiplex frame identifier and the physical broadcast channel parameter. The physical broadcast channel parameters may be modulation parameters, coding parameters, interleaving modes, and the like.

The multimedia control information entry includes at least: a plurality of multimedia service identifiers, a multimedia multiplex frame identifier, and a physical broadcast channel parameter, and the three have similar correspondences among the foregoing entries, that is, each multimedia service identifier corresponds to a respective multimedia complex. Frame identification and physical broadcast channel parameters.

As shown in FIG. 6 , it is a structural block diagram of an embodiment of a data receiving method provided by the present invention. The method of the present invention changes the serial processing mode, speeds up the receiving speed of the ESG data, and improves the receiving effect of the user. Includes the following steps:

Step 610: The ESG service logical channel is directly configured by using a pre-stored control information table, and the ESG data is received and presented to the user.

By querying the ESG control information entry in the control information table, the multiplex frame identifier and the physical broadcast channel parameter corresponding to the ESG service identifier are obtained, and the data of the ESG service logical channel is correctly decoded by using these parameters, and the ESG service logic is implemented. Correct reception of ESG data information in the channel;

Step 620: Receive multimedia service data through a multimedia service logical channel by using a pre-stored control information table.

Here, each program corresponds to a multimedia service identifier. After the user selects a certain program, the physical control channel parameter corresponding to the multimedia service identifier corresponding to the program selected by the user and the multiplex frame identifier are obtained by querying the multimedia control information table item in the control information table that is configured by the query, according to the The multiplex frame identification and physical broadcast channel parameters receive multimedia service data from the multimedia service logical channel. The control information table is pre-built and saved in the mobile multimedia terminal, mainly by the following methods:

1) storing default ESG control information and multimedia control information in the mobile multimedia terminal to construct a control information table and save it;

Here, the default ESG control information and multimedia control information are obtained according to the service identifier specified in the GY/T 220.3 Mobile Multimedia Broadcasting Electronic Service Guide Standard and Implementation Guide. The service identifier used by the standard ESG data can be used in the range of 40. -255. The default value of the ESG service identifier of the current test network is 254. When the terminal is initialized, the multiplex frame identifier and the physical broadcast channel parameters can be obtained according to the service identifier equal to 254 to construct a control information table and save it.

2) the mobile multimedia terminal receives the ESG control information and the multimedia control information through the control channel in advance to construct a control information table, and saves the control information table;

When the ESG data cannot be correctly received by using the default parameters, the ESG basic description information, the service configuration information, and the multiplexing configuration information may be received through the control channel to obtain the ESG control information, and the control information table is saved;

Obtaining multimedia control information and saving according to the service configuration information and the multiplexing configuration information transmitted in the control channel according to an existing process;

The control information table is then constructed and saved according to the ESG control information and the multimedia control information.

As shown in FIG. 7, a receiving device for ESG data, the device includes: a receiving processing module 10, a parameter storage module 20, wherein:

The receiving processing module 10 is configured to obtain an ESG service identifier from the parameter storage module 20, extract corresponding multiplexing frame identifiers and physical broadcast channel parameters from the parameter storage module 20 according to the ESG service identifier, and use the multiplexing frame identifier and the physical broadcast. The channel parameters receive ESG data from the service logical channel and present to the user;

The parameter storage module 20 is configured to save ESG control information.

Here, the ESG control information includes: an ESG service identifier, a corresponding multiplex frame identifier, and a physical broadcast channel parameter. In addition, the playback module 30 is connected to the receiving device of the ESG data:

The receiving processing module 10 is further configured to extract, from the parameter storage module 20, a multimedia service identifier corresponding to the program selected by the user, and obtain, by using the multimedia service identifier, the corresponding multiplexing of the multimedia service identifier from the parameter storage module 20 The frame identifier and the physical broadcast channel parameter, receive the multimedia service data from the multimedia service logical channel, and send the obtained multimedia service data to the play module 30;

a playing module 30, configured to play multimedia service data;

The parameter storage module 20 is further configured to save the multimedia service identifier, and the corresponding multiplex frame identifier and physical broadcast channel parameter corresponding thereto.

The receiving processing module 10 is further configured to: obtain the ESG service identifier, and the multiplex frame identifier and the physics corresponding to the ESG service identifier by receiving the ESG basic description information, the service configuration information, and the multiplexing configuration information from the control channel. Broadcasting channel parameters, and storing the parameter in the parameter storage module 20; further configured to obtain, by receiving service configuration information and multiplexing configuration information from the control channel, a multimedia service identifier, and a multiplexing frame identifier corresponding to the ESG service identifier, and Physically broadcasting channel parameters, and saving in the parameter storage module 20;

The receiving processing module 10 is further configured to obtain, according to the default ESG service identifier and the multimedia service identifier pre-stored by the parameter storage module 20, the corresponding multiplex frame identifier and the physical broadcast channel parameter from the control channel during initialization, and It is saved in the parameter storage module 20.

If an error occurs in receiving the ESG data by using the default parameters, the receiving processing module 10 first receives and acquires relevant parameters from the control channel according to the existing receiving processing flow, that is, obtains E SG control information and multimedia control information, and saves the obtained parameters. In the parameter storage module 20; then the parameters in the parameter storage module 20 are retrieved from the ESG service logical channel to receive the ESG data and the multimedia service logical channel to receive the multimedia service data.

Here, if the receiving processing module 10 receives the data error of the ESG service logical channel using the parameter in the parameter storage module 20, or receives the data error of the multimedia service logical channel, the receiving processing module 10 needs to follow the existing receiving processing flow from the control channel. Receive and obtain ESG control letters The information and multimedia control information are stored in the parameter storage module 20, thereby implementing parameter update in the parameter control module 20.

Some specific implementations of the functions of the devices in the above system are described in the above methods, and are not described herein again.

For the above ESG data acquisition and processing of playing multimedia service data, the former is combined with the local parameters only through the service logical channel, and the latter is combined with the local parameters through the multimedia service logical channel.

Therefore, all processing is performed on only one logical channel at the same time, avoiding frequent switching of the receiving channel, thereby speeding up the receiving speed, and eliminating the need for the terminal to have the ability to simultaneously receive two channels.

It is a matter of course that the invention may be embodied in various other forms and modifications without departing from the spirit and scope of the invention.

Industrial applicability

The invention can avoid frequent switching of the receiving channel, thereby speeding up the receiving speed, and does not require the terminal to have the capability of receiving two channels at the same time, ensuring that the user quickly acquires related multimedia services according to the ESG, and thus has strong industrial applicability.

Claims

Claim

1. An electronic service guide method for receiving ESG data, the method includes:

The receiving end pre-saves the ESG control information table, where the ESG control information table includes: an ESG service identifier, and a multiplex frame identifier and a physical broadcast channel parameter corresponding to the ESG service identifier;

The ESG data is received from the ESG service logical channel according to the ESG service identifier, the multiplex frame identifier, and the physical broadcast channel parameter.

2. The receiving method according to claim 1, wherein

The multimedia control information table is further pre-stored in the receiving end, and the multimedia control information table includes: a plurality of multimedia service identifiers, and a multiplex frame identifier and a physical broadcast channel parameter corresponding to the multimedia service identifier.

The receiving method according to claim 2, wherein when the multimedia control information table is further stored in the receiving end, the method further includes:

Querying the multimedia control information table to obtain a multimedia service identifier, a multiplex frame identifier and a physical broadcast channel parameter corresponding to the multimedia service identifier, and receiving from the multimedia service logical channel according to the multiplex frame identifier and the physical broadcast channel parameter. Multimedia business data.

The receiving method according to claim 1, wherein before the receiving end saves the ESG control information table, the method further comprises: acquiring the ESG service identifier and a multiplexing frame identifier corresponding to the ESG service identifier. And physical broadcast channel parameters, the specific acquisition method is:

Presetting a default ESG service identifier, and acquiring, by the control channel, a multiplex frame identifier and a physical broadcast channel parameter corresponding to the default ESG service identifier when the receiver is initialized; or

The ESG service identity, and the corresponding multiplex frame identity and physical broadcast channel parameters are received in advance from the control channel.

The receiving method according to claim 2, wherein before the receiving end saves the multimedia control information table, the method further comprises: acquiring the multimedia service identifier, and a multiplexing frame corresponding to the multimedia service identifier Identification and physical broadcast channel parameters, the specific acquisition method is: Presetting a default multimedia service identifier, acquiring a multiplex frame identifier and a physical broadcast channel parameter corresponding to the default multimedia service identifier from a control channel when the receiving end is initialized; or receiving a multimedia service identifier from the control channel in advance And corresponding multiplex frame identification and physical broadcast channel parameters.

The receiving method according to claim 3, wherein before the receiving end saves the multimedia control information table, the method further comprises: acquiring the multimedia service identifier, and a multiplexing frame corresponding to the multimedia service identifier The identifier and the physical broadcast channel parameter are obtained by: setting a default multimedia service identifier in advance, and acquiring a multiplex frame identifier and a physical broadcast channel parameter corresponding to the default multimedia service identifier from the control channel when the receiving end is initialized Or the multimedia service identifier and the corresponding multiplex frame identifier and physical broadcast channel parameters received from the control channel in advance.

7. A receiving device for ESG data, the device comprising: a parameter storage module and a receiving processing module; wherein

8. The receiving device according to claim 7, wherein

The parameter storage module is further configured to pre-save a plurality of multimedia service identifiers, and a multiplexing frame identifier and a physical broadcast channel parameter corresponding to the multimedia service identifier;

The receiving processing module is further configured to: obtain, by using the parameter storage module, a multimedia service identifier corresponding to the program selected by the user, and use the multimedia service that is further obtained from the parameter storage module according to the multimedia service identifier. The corresponding multiplex frame identifier and the physical broadcast channel parameter are identified to receive multimedia service data from the multimedia service logical channel.

9. The receiving device according to claim 7, wherein The receiving processing module is further configured to receive, by using a control channel, an ESG service identifier and a multimedia service identifier, and a multiplexing frame identifier and a physical broadcast channel parameter respectively corresponding to the ESG service identifier and the multimedia service identifier, and save the parameter in the parameter In the storage module; or

The receiving processing module is further configured to obtain, according to the default ESG service identifier and the multimedia service identifier pre-stored by the parameter storage module, the multiplex frame identifier and the physics corresponding to the ESG service identifier and the multimedia service identifier respectively during initialization. Broadcast channel parameters are stored in the parameter storage module.

10. The receiving device according to claim 8, wherein

The receiving processing module is further configured to receive, by using a control channel, an ESG service identifier and a multimedia service identifier, and a multiplexing frame identifier and a physical broadcast channel parameter respectively corresponding to the ESG service identifier and the multimedia service identifier, and save the parameter in the parameter In the storage module; or