WO2008106842A1

WO2008106842A1 - An implement method for mobile multimedia broadcast program prompt information

Info

Publication number: WO2008106842A1
Application number: PCT/CN2007/002506
Authority: WO
Inventors: Hailong Weng; Biao Wang; Qinghua Yao; Zunyou Ke
Original assignee: Zte Corporation
Priority date: 2007-03-08
Filing date: 2007-08-28
Publication date: 2008-09-12

Abstract

An implement method for mobile multimedia broadcast program prompt information, includes the following steps: S102, a mobile multimedia system front-end acquires the program prompt information of a multimedia service channel and encapsulates the information into the data unit of a multiplexing sub-frame data segment, wherein, sets a specific value for the type of data unit of the data segment capsulated with the program prompt information to discriminate it with other data; S104, a multiplexer makes the multiplexing sub-frames containing the program prompt information compose a multiplexing frame, and sends it by a mobile multimedia broadcast network; S106, a terminal receives the multimedia service information, extracts the program prompt information from the data unit of the multiplexing sub-frame data segment, and displays the program prompt information on a terminal screen.

Description

TECHNICAL FIELD The present invention relates to the field of communications, and more particularly to the implementation of program prompt information in the electronic service (CM) field, electronic service (or section i) guide. BACKGROUND OF THE INVENTION Mobile multimedia broadcasting services (also called mobile TVs) have various implementation technologies, including Multimedia Broadcast Multicast Service (MBMS), Broadcast and Multicast Service (BCMCS), and Broadcast and Multicast Service (BCMCS). Streaming technology, also based on broadcast networks (terrestrial digital broadcasting, satellite digital broadcasting) technology, such as DVB-H in Europe (Digital Video Broadcast Handheld: Digital Video Broadcast Handheld), MediaFLO in the United States (media single forward link) : Media Forward Link Only ), Japan's ISDB-T (Integrated Service Digital Broadcasting - Terrestrial) and China's CMMB (China Mobile Multimedia Broadcast), as well as application layer assistance technology. Mobile multimedia services based on broadcast networks have been widely used due to their high spectrum utilization, large capacity, relatively low construction cost and wide audience. When using mobile multimedia services, mobile multimedia broadcast network users can learn about mobile multimedia broadcast services (including service name, play time, content, price, etc.) through electronic service guide (ESG) or electronic program guide navigation. ) and enable fast retrieval, preview and access to the business. 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. When watching a program or switching a service/channel, it is often necessary to have a way to quickly learn the current program content of the current service/channel (such as start time, theme, duration, etc.), and what program content information to play in the next time period. That is, the program prompt information; meanwhile, when the system adjusts the current time period or the subsequent time period program at a certain moment, it is also necessary to notify the user in time. The present invention provides a method for quickly providing program prompt information of a current service/channel during a process of watching a program or switching a service/channel in a mobile multimedia broadcast system, and immediately notifying the system of the adjusted program information to the user. Wenshan users use the experience of multimedia broadcasting services. SUMMARY OF THE INVENTION The technical problem to be solved by the present invention is to provide a mobile multimedia broadcast network in which a user quickly provides information about a program currently being played by a current service/channel and a next program information (ie, a program) when switching channels or watching a program. The method of prompting information) improves the user experience of using the multimedia broadcast service. In order to solve the above technical problem, the present invention provides a method for implementing mobile multimedia broadcast program prompt information, including the following steps: Step S102: The mobile multimedia system front end obtains program prompt information of the multimedia service channel, and encapsulates the program prompt information in the complex Transmitting to the multiplexer in the data unit of the sub-frame data segment, wherein the data segment data unit type encapsulating the program hint information is set with a specific value to distinguish it from other data; and in step S104, the multiplexer will contain the program The multiplexed subframe of the hint information constitutes a multiplexed frame and is transmitted through the mobile multimedia broadcast network. The method further includes: Step S106: The terminal receives the multimedia service information from the mobile multimedia broadcast network, parses the program prompt information from the data unit of the multiplex subframe data segment, and displays the program prompt information on the terminal screen. In step S102, the mobile multimedia system front end encapsulates the program prompt information together with the multimedia service video data information and the audio data information in the data unit of the multiplex subframe data segment. In step S104, the multiplexer combines the multiplex subframes including the program hint information, the multimedia service video information, and the audio data information into a multiplex frame. The program prompt information includes at least one of the following: a start time, a program name of at least one language description, and a duration. Step S106 further includes: the terminal parsing the data unit type and the data unit from the received multiplex sub-frame data segment, and determining whether there is program prompt information in the data unit according to the type of the data list, and if yes, directly parsing from the data unit Displaying the program prompt information and displaying it on the terminal screen; otherwise, searching the program schedule of the local electronic service guide, the content table to obtain the start time of the current service/channel, the program name of one or more language descriptions, and the program duration information. It is constructed as a program prompt message and displayed on the terminal screen. In step S102, the program prompt information is encapsulated in a data unit of the data segment in a table manner or an XML manner. The program prompt information includes program information of the current program and program information of the next program; if the current program is the last program of the channel, the program prompt information only includes current program information; the program information includes a start time, a program name, and a duration. The program prompt information further includes a record number indicating the sum of the current program and the next program number of the data unit. If the number of records is 2, the data unit includes the current program information and the next program information; if the number of records is 1, Then, the data unit only contains current program information; if the number of records is greater than 2, the data unit includes current program information and two or more consecutive program information. Step S104 further includes: the program prompt information is periodically sent to the user terminal through the mobile multimedia broadcast network, or is immediately broadcast to the user terminal through the broadcast channel according to the needs of the operator. Step S106 further includes: the terminal calibrating the local time using the system time obtained from the mobile multimedia network, and displaying the playing progress of the current program using the calibrated local time in combination with the program start time and duration of the program prompt information. In step S102, when the front end of the multimedia broadcast system adjusts the current time period or the next time period of a certain service/channel, the front end actively sends the program prompt information, and at this time, the terminal receives the update in the multiplex subframe. Instructing to detect that the current service or channel has the latest program prompt information, directly parsing the program prompt information in the current data unit, and displaying it on the terminal screen. The method of the invention enables the user to quickly provide program prompt information of the current service/channel when switching channels or watching programs when using the mobile multimedia broadcast service, which greatly improves the user's body to facilitate the operation and development of the service; In the test phase or at the beginning of the development, the business can be better carried out without editing or distributing the programming schedule. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a flowchart of a method for implementing mobile multimedia broadcast thrift hint information according to the present invention; FIG. 2 is a schematic diagram of program hint information in a CMMB multiplex sub-frame position according to the present invention; CMMB data segment encapsulation structure diagram; FIG. 4 is a schematic diagram of a program cue information data unit package according to the present invention; FIG. 5 is a schematic diagram of program cue information transmission and processing according to the present invention. DETAILED DESCRIPTION OF THE INVENTION The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It is an object of the present invention to provide an implementation and processing method for a current program/sequence of program information (program presentation information) of a channel in a mobile multimedia broadcast network. 1 is a flow chart of a method for implementing mobile multimedia broadcast program prompt information according to the present invention. As shown in Figure 1, the method includes the following steps:

S102: The mobile multimedia system front end obtains the program prompt information of the multimedia service channel, and is encapsulated in the data unit of the multiplex sub-frame data segment together with the multimedia service video data information and the audio data information, and sent to the multiplexer, where the program is encapsulated The data segment data unit type of the prompt information sets a specific value to distinguish it from other data;

S104. The multiplexer combines the multiplexed subframes including the program prompt information, the multimedia service video information, and the audio data information into a multiplex frame, and sends the multiplex frame through the mobile multimedia broadcast network.

S106: The terminal receives the multimedia service information, parses the program prompt information from the data unit of the multiplex subframe data segment, and displays the program prompt information on the terminal screen. According to the method of the present invention, the program prompt information of the step S102 includes at least one of a start time, a program name of one or more language descriptions, and a program duration. According to the method of the present invention, step S106 further includes: the terminal parsing out the data unit type and the data unit from the received multiplex sub-frame data segment, and determining whether the data unit has the program prompt information in the data unit type, if any, directly Parsing the program prompt information in the current data unit and displaying it on the terminal screen; otherwise, searching the local ESG's program schedule, the content table to obtain the current service/channel start time, the program name of one or more language descriptions, The program duration information is constructed as program reminder information and displayed on the terminal screen. According to the method of the present invention, the program prompt information of step S102 is loaded in the data unit of the data segment in a table manner or an XML manner. In the method of the present invention, the program prompt information of step S102 further includes a record number indicating the sum of the current program and the next program number of the data unit. If the number of records is 2, the data unit includes the current program information and the next one. Program information; if the number of records is 1, the data unit only contains current program information; if the number of records is greater than 2, the data unit contains current program information and Two or more pieces of program information are consecutively followed. According to the method of the present invention, step S104 further includes: the program prompt information is periodically sent to the user terminal through the mobile multimedia broadcast network, or is immediately broadcast to the user terminal through the broadcast channel according to the needs of the operator. According to the method of the present invention, step S106 further includes: the terminal calibrating the local time using the system time obtained from the mobile multimedia network, and displaying the playing of the current program using the calibrated local time in combination with the program start time and duration of the program prompt information. schedule. According to the method of the present invention, in step S102, when the front end of the multimedia broadcast system adjusts the current time period of the certain service/channel or the program of the next time period, the front end actively sends the program prompt information, and at this time, the terminal receives the multiplexing by receiving The update in the sub-frame indicates that the current service or channel has the latest program prompt information, and directly parses the program prompt information in the current data unit and displays it on the terminal screen. The method of the present invention can be generally divided into two steps: 1. encapsulation of program prompt information; 2. transmission and processing of program prompt information. These two steps are described in detail below. 1. Encapsulation of program prompt information

(1) As shown in FIG. 2, in a mobile multimedia broadcast (CMMB) system, in a service/channel of a mobile multimedia network, each multimedia service occupies one or more multiplex subframes, and the multiplex subframe includes The sub-frame header, the video segment, the audio segment, and the data segment; wherein, the video data, the audio data, and the program prompt information are respectively encapsulated in the video segment, the audio segment, and the data segment, wherein the program prompt information is in the data unit of the data segment The middle is identified by a specific value to distinguish other data. The multiplexed sub-frame is used to carry specific multimedia broadcast service data and/or system data to form a multimedia broadcast service, and these services are exclusively transmitted to the terminal through the mobile multimedia broadcast network.

(2) As shown in FIG. 3, the encapsulation structure of the data segment of the program hint information is composed of a data segment header and a plurality of data units. The data segment header describes the parameters of each data unit, including data unit number, data unit type, data unit length and other parameters; wherein, the data unit type is used to distinguish different data carried by the data unit, as shown in Table 1. Table 1 data unit type

The data unit type of the program prompt information is defined as "1".

(3) As shown in FIG. 4, the program prompt information is encapsulated in a data unit, and the parameters included are: Number of records: indicates the number of program prompt information carried by the data unit, and the default value is 2, indicating 'this data unit Only two records are included, each record represents current program information and next program information; if the number of records is greater than 2, it means that the data unit contains current program information and two or more consecutive program information; if there is only one record , means that the data unit contains current program information. Start Time: Indicates when the program for the business/channel starts to play. Duration: Indicates the duration of the program. Language Type: Indicates the language encoding of the program theme name. The length of the topic: indicates the length of the program name string, which is convenient for terminal resolution. Subject: Indicates the name of the content of the program being played.

2. Transmission and processing of program prompt information As shown in FIG. 5, it is a flow chart illustrating the transmission and processing of program prompt information. The flow of program prompt information transmission and processing of the present invention will be described below with reference to FIG.

500: The mobile multimedia system front-end ESG generator obtains the program prompt information of the multimedia service channel, and is packaged in the data unit of the multiplex sub-frame data segment together with the multimedia service video and audio data information, where the program prompt information is encapsulated. The data segment data unit type sets a specific value to distinguish it from other data. The multimedia service information occupies a multiplex frame composed of one or more multiplexed subframes, where the multiplex subframe includes a multiplex subframe header, a video segment, an audio segment, and a data segment, where the video data, The audio data is respectively encapsulated in the video segment and the audio segment; the program prompt information of the extracted service/channel mainly includes a start time, a program name of at least one language description, a duration, and the like, and is a program prompt information format of the above step 1. Encapsulated in the data segment of the multiplex subframe. In the embodiment of the present invention, program presentation information of each service channel is extracted from the ESG server at regular intervals of one second.

510: The multiplexer will display the service/channel program prompt information as well as audio data, video data, and the like. The service information is configured to conform to the CMMB network multiplexed frame, and is sent to the mobile multimedia terminal along with the CMMB network broadcast; the multimedia service information containing the program prompt information may be broadcasted to the user terminal periodically through the broadcast channel, or may be according to the operator. The need to be broadcasted to the user terminal through the broadcast channel immediately. 520: When the user uses the mobile multimedia service, switch to the service/channel to be viewed, or select the "view program prompt information" function operation, at this time, the mobile multimedia terminal application is at the designated time. Internally (consistent with the delivery period, for example, 1 second), the data unit is parsed from the received multiplex subframe, and it is determined whether the data unit type is "1" defined in the above step "1. Encapsulation of program hint information" ( The data unit indicating the program prompt information, if yes, directly parsing the program prompt information in the current data unit, displayed on the screen of the user moving multimedia terminal; if not, searching the local ESG program schedule table, the content table To get information about the current business/channel, such as the start time, The information such as the name, duration, etc. is configured as program prompt information, which is displayed on the screen of the user terminal. In addition, the terminal obtains the system time from the mobile multimedia network, uses the system time to calibrate the local time of the terminal, and uses the calibrated local time. Displaying the progress of the current program in combination with the program start time and duration of the program prompt information obtained from the multiplex subframe. For the above step 500, when the front end of the multimedia broadcast system is for the current time period or the next time period of a certain service/channel When the program is adjusted, the ESG server can notify the ESG generator to actively send the program prompt information. At this time, the corresponding step 520 should be: The terminal detects that the network has the latest program prompt information by receiving the corresponding indication in the multiplex sub-frame header. The program prompt information in the current data unit is directly parsed and displayed on the screen of the user terminal. In summary, according to the method of the present invention, when the user switches the service/channel, the terminal first queries the complex that constitutes the current service/channel. Whether there is program prompt information in the data segment of the sub-frame If there is automatic display on the terminal screen; if there is no program prompt information data in the data segment of the multiplex subframe of the current service/channel, the start time, the content theme, and the content theme may be retrieved in the local programming schedule and the content table stored in the terminal. The duration information and other related information, the program prompt information constituting the current channel is automatically displayed on the terminal screen; the user can also actively query the program prompt information through the function Lai single during the viewing of the program. The priority query constitutes the multiplexing of the current service/channel. Program prompt information in the data segment of the subframe; if not checking the start time of the current service/channel in the terminal local programming schedule, the content table, the program name of one or more language descriptions, the program duration Information, which constitutes the program prompt information of the current channel. The present invention has been described in detail by way of specific embodiments thereof, and the description of the above embodiments are provided to enable those skilled in the art to make or use the invention. Understand. The invention is not limited to these examples, or some aspects thereof. The scope of the invention is to be described in detail by the appended claims.

Claims

Claim

A method for implementing prompt information of a mobile multimedia broadcast program, the method comprising: Step S102: A front end of a mobile multimedia system acquires program prompt information of a multimedia service channel, and encapsulates the program prompt information in a multiplex sub-frame data segment Data unit is sent to the multiplexer, where a specific value is set to the data segment data unit type encapsulating the program prompt information to distinguish it from other data;

Step S104, the multiplexer combines the multiplex subframes containing the program prompt information into a multiplexed frame and transmits the data through the mobile multimedia broadcast network.

The method for implementing the mobile multimedia broadcast program prompt information according to claim 1, wherein the method further includes: Step S106: The terminal receives the multimedia service information from the mobile multimedia broadcast network, from the The program prompt information is parsed in the data unit of the multiplex sub-frame data segment, and the program prompt information is displayed on the terminal screen.

The method for implementing mobile multimedia program prompt information according to claim 1 or 2, wherein in the step S102, the mobile multimedia system front end displays the program prompt information and multimedia service video data information. Enclosed in the data unit of the multiplex sub-frame data segment together with the audio data information.

The method for implementing mobile multimedia program program prompt information according to claim 1 or 2, wherein in the step S104, the multiplexer will include the program prompt information and the multimedia service video. The multiplexed subframe of information and audio data information constitutes a multiplexed frame.

The method for implementing mobile multimedia program prompt information according to claim 1 or 2, wherein the program prompt information comprises at least one of the following: a start time, a program name of at least one language description, and a duration .

The method for implementing the mobile multimedia broadcast program prompt information according to claim 2, wherein the step S106 further comprises: the terminal parsing the data unit type from the received multiplex subframe data segment and Data unit, and determining whether there is program prompt information in the data unit according to the data unit type, if yes, parsing the program prompt information directly from the data unit and displaying it on the terminal screen; otherwise, searching for the local electronic service guide The program schedule table and the content table are configured to obtain the program start information, the program name of the current service/channel, the program name of the one or more languages, and the program duration information, and display the program prompt information. Displayed on the terminal screen.

7. The method for implementing mobile multimedia program presentation information according to claim 3, wherein: in the step S102, the program prompt information is installed in a data unit of a data segment or in an XML format. the way.

The method for implementing mobile multimedia program presentation information according to claim 3, wherein in the step S102, the program prompt information includes program information of a current program and program information of a next program; The current program is the last program of the channel, and the program prompt information only contains current program information; the program information includes a start time, a program name, and a duration.

9. The method for implementing mobile multimedia program presentation information according to claim 8, wherein in the step S102, the program prompt information further comprises a current program and a next program number representing the data unit. The number of records of the sum, if the number of records is 2, the data unit contains the current program information and the next program information; if the number of records is 1, the data unit only contains the current program information; if the number of records is greater than 2, then The data unit contains current program information and two or more consecutive program information.

The method for implementing the mobile multimedia broadcast program prompt information according to claim 3, wherein the step S104 further comprises: the program prompt information is periodically sent to the user terminal through the mobile multimedia broadcast network, or according to the operation The needs of the merchant are immediately broadcast to the user terminal through the broadcast channel.

The method for implementing the mobile multimedia broadcast program prompt information according to claim 2, wherein the step S106 further comprises: the terminal calibrating the local time using the system time obtained from the mobile multimedia network, using the calibration The local time is combined with the program start time and duration of the program prompt information to display the progress of the current program.

12. The method for implementing mobile multimedia program program prompt information according to claim 2, wherein in the step S102, when the front end of the multimedia broadcast system has a current time period or a next time period program of a certain service/channel During the adjustment, the front end actively sends the program prompt information. At this time, the terminal detects that the current service or channel has the latest program prompt information by receiving the update indication in the multiplex subframe, and directly parses the program prompt information in the current data unit. , displayed on the terminal screen.