WO2010102468A1 - 移动多媒体广播信号指示方法、装置及移动终端 - Google Patents

移动多媒体广播信号指示方法、装置及移动终端 Download PDF

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Publication number
WO2010102468A1
WO2010102468A1 PCT/CN2009/072518 CN2009072518W WO2010102468A1 WO 2010102468 A1 WO2010102468 A1 WO 2010102468A1 CN 2009072518 W CN2009072518 W CN 2009072518W WO 2010102468 A1 WO2010102468 A1 WO 2010102468A1
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WO
WIPO (PCT)
Prior art keywords
signal strength
multimedia broadcast
mobile multimedia
received signal
mobile
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Application number
PCT/CN2009/072518
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English (en)
French (fr)
Inventor
张驰俊
罗炜
赵金锴
Original Assignee
中兴通讯股份有限公司
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Publication of WO2010102468A1 publication Critical patent/WO2010102468A1/zh

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Classifications

    • 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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
    • H04N21/41407—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop
    • 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
    • H04N21/44209—Monitoring of downstream path of the transmission network originating from a server, e.g. bandwidth variations of a wireless network
    • 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
    • H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
    • H04N21/4436—Power management, e.g. shutting down unused components of the receiver
    • 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
    • H04N21/47—End-user applications
    • 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
    • H04N21/47—End-user applications
    • H04N21/488—Data services, e.g. news ticker
    • H04N21/4882—Data services, e.g. news ticker for displaying messages, e.g. warnings, reminders
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/12—Arrangements for observation, testing or troubleshooting

Definitions

  • the present invention relates to a mobile multimedia broadcast technology, and more particularly to a mobile multimedia broadcast signal indication method, apparatus and mobile terminal.
  • mobile phone intelligence is the dominant direction of mobile phone development.
  • smart phones also have many additional functions, such as high-speed data transmission, web browsing, GPS, mobile TV and so on.
  • mobile TV services There are two ways to implement mobile TV services: one is based on the mobile operator's cellular wireless network to achieve mobile phone streaming; the other is to use digital multimedia broadcasting on the digital audio broadcasting spectrum to achieve multicast. These two methods require adding a digital TV receiving module to the mobile phone to directly receive the digital television signal.
  • the implementation of the mobile TV technology is the latter, that is, the television signal is received by means of digital multimedia broadcasting.
  • the technical standard adopted by the TV module is the domestic CMMB (Mobile Multimedia Broadcasting Television) standard.
  • CMMB mobile TV wireless signals are transmitted in the air, they are blocked by buildings, and the signal attenuation is more serious, resulting in weak broadcast signals and even receiving blind spots in buildings, subways, and tunnels.
  • the mobile TV broadcast screen will produce a smooth phenomenon.
  • the receiving blind zone that is, in the absence of signal, the TV mobile phone will not find the network, and thus cannot be played.
  • CMMB broadcast network is not perfect enough. There are blind spots in many places. In many cases, users who are just beginning to contact and use a TV handset are not aware of the current signal environment. Such as If the user spends more than 10S in the environment of weak signal or blind zone and finds that the TV signal is not received or the picture quality is poor and the TV is not seen, then for the TV mobile phone with TV as the main function, this kind of If the situation happens frequently, the overall use of the user will be greatly reduced.
  • the technical problem to be solved by the present invention is to provide a mobile multimedia broadcast signal indication method, device and mobile terminal, so that the mobile terminal user can understand the current mobile multimedia broadcast signal strength and avoid the bad user caused by blindly launching the mobile multimedia broadcast. Experience.
  • the present invention provides a mobile multimedia broadcast signal indicating method, which is implemented based on a mobile terminal having a mobile multimedia broadcast program playing function, and includes:
  • said mobile terminal receives and demodulates a mobile multimedia broadcast signal, and processes the demodulated mobile multimedia broadcast signal to obtain a received signal strength value;
  • the mobile terminal displays the received signal strength according to the received signal strength value.
  • step (b) the received signal strength is displayed by using an indicator light, and if the received signal strength value is lower than a preset threshold, the indicator light is turned off; otherwise, the indicator light is turned on,
  • the threshold value is set based on whether the mobile multimedia broadcast program can be played normally.
  • the received signal strength is divided into at least two levels, and the received signal strong enemy is displayed in a color, a text, a graphic or an indicator light.
  • step (a) is performed periodically periodically.
  • the present invention provides a mobile multimedia broadcast signal indicating apparatus, which includes an application processing module, a mobile multimedia broadcast module, and a signal strength display module, wherein the mobile multimedia broadcast module is configured to receive and demodulate a mobile a multimedia broadcast signal, and processing the demodulated mobile multimedia broadcast signal to acquire and save the received signal strength value;
  • the application processing module is configured to start the mobile multimedia broadcast module, and control the signal strength display module to display according to the received signal strength value;
  • the signal strength display module is configured to visually display the received signal strength.
  • the signal strength display module displays the received signal strength by using an indicator light, And if the application processing module determines that the received signal strength value is lower than a preset threshold, indicating that the signal strength display module turns off the indicator light; otherwise, the indication signal strength display module turns on the indicator light; It is set based on whether the mobile multimedia broadcast program can be played normally.
  • the signal strength display module displays the received signal strength by using color, text or graphics, and the received signal strength is divided into at least two levels.
  • the application processing module is configured to periodically start the mobile multimedia broadcast module.
  • the present invention further provides a mobile terminal having a mobile multimedia broadcast program playing function, the mobile terminal comprising a mobile multimedia broadcast signal indicating device, the device comprising an application processing module, a mobile multimedia broadcast module, and a signal strength a display module, wherein the mobile multimedia broadcast module is configured to receive and demodulate a mobile multimedia broadcast signal, and process the demodulated mobile multimedia broadcast signal to acquire and save a received signal strength value;
  • the application processing module is configured to start the mobile multimedia broadcast module, and control the signal strength display module to display according to the received signal strength value;
  • the signal strength display module is configured to visually display the received signal strength.
  • the signal strength display module displays the received signal strength by using an indicator light, and if the application processing module determines that the received signal strength value is lower than a preset threshold, the signal strength display module is turned off.
  • the indicator light otherwise, indicates that the signal strength display module turns on the indicator light; the threshold value is set according to whether the mobile multimedia broadcast program can be normally played.
  • the mobile multimedia broadcast signal indicating method, device and mobile terminal of the present invention break through the limitations of the existing mobile terminal when providing the mobile multimedia broadcast service, so that the user can easily and intuitively understand the current signal strength at any time. Users bring convenience, efficiency, practical added value and a good user experience.
  • FIG. 1 is a schematic diagram of a mobile multimedia broadcast signal indicating apparatus according to the present invention.
  • FIG. 2 is a schematic diagram of an application example of a mobile multimedia broadcast signal indicating apparatus of the present invention.
  • FIG. 3 is a flow chart of a signal indicating method implemented by the apparatus of FIG. 2.
  • the present invention provides a mobile multimedia broadcast signal indication method, which is implemented based on a mobile terminal having a mobile multimedia broadcast program play function, and includes: Step 1: The mobile terminal receives and demodulates a mobile multimedia broadcast signal, and processes the demodulation The mobile multimedia broadcast signal is obtained to obtain the received signal strength value; and step 2: the mobile terminal displays the received signal strength according to the received signal strength value.
  • the received signal strength is divided into at least two levels, and the received signal strength can be hierarchically displayed according to a specific application, such as a color, a text, a graphic, or an indicator light.
  • the visual display of the received signal strength can be realized by visual means such as color, text, graphics or indicator light.
  • the mobile terminal periodically performs the above steps, and continuously updates the display condition of the received signal strength, so that the user can know the receiving strength of the current mobile multimedia broadcast signal in real time, thereby more effectively avoiding playing after the time is taken to open the mobile multimedia broadcast program. Not smooth or no network coverage at all.
  • the present invention also provides a mobile terminal and a mobile multimedia broadcast signal indicating device having a mobile multimedia broadcast program playing function.
  • the mobile terminal and the mobile multimedia broadcast signal indicating device of the present invention comprise a mobile multimedia broadcast module, an application processing module and a signal strength display module, wherein
  • the mobile multimedia broadcast module is configured to receive and demodulate a mobile multimedia broadcast signal, and understand the adjusted mobile multimedia broadcast signal to obtain a received signal strength value;
  • the application processing module is configured to periodically start the mobile multimedia broadcast module, obtain the received signal strength value, and control the signal strength display module to display according to the received signal strength value;
  • the signal strength display module is configured to visually display the received signal strength.
  • the received signal strength may be divided into at least two levels, and the signal strength display module may implement a hierarchical display of the received signal strength according to a specific manner, such as a color, a text, a graphic, or an indicator light. For example, when a single indicator light is used, whether the current received signal strength can support normal play can be indicated by the blinking of the indicator light, and the signal strength threshold value is preset according to whether the mobile multimedia broadcast program can be played normally. . If the application processing module determines that the received signal strength value is lower than the signal strength threshold, the indication signal strength display module turns off the indicator light; otherwise, the indication signal strength display module turns on the indicator light.
  • the most common terminal for receiving mobile multimedia broadcast signals is a mobile phone, and the mobile multimedia broadcast program is commonly referred to as a mobile phone television.
  • the mobile multimedia broadcast signal indicating device of the present invention will be described below with specific application examples. As shown in FIG. 2, the above mobile multimedia broadcasting module is implemented by the television receiving module 1 and the television demodulating chip 2, and the above application processing module is implemented by the application processing chip 3, and the above signal strength display module is realized by the signal indicating lamp 4.
  • the mobile multimedia broadcast signal indicating method implemented by the mobile multimedia broadcast signal indicating device includes the following steps.
  • Step 301 In the standby mode, the application processing chip is automatically woken up by the internal timer or the mobile terminal timer, and the TV module is started according to the task set by the internal software, that is, the TV receiving module and the TV demodulation chip are respectively powered on.
  • Step 302 The television receiving module automatically receives the television broadcast signal, and transmits the television broadcast signal to the television demodulation chip, and the television demodulation chip demodulates the input signal, and the demodulated signal is processed by the internal circuit to obtain the received signal strength.
  • the value (RSSI), and the received signal strength value is stored in the register.
  • Step 303 The application processing chip reads the received signal strength value in the internal register of the TV demodulation chip.
  • Step 304 Determine, according to the received signal strength value, whether the current environmental signal can support normal play. If the received signal strength value is within a normal signal strength range (eg, between -lOdbm and -90dbm), perform step 305, if the received signal strength value In the range of weak signal strength (such as between -90dbm and -98dbm), step 306 is performed;
  • a normal signal strength range eg, between -lOdbm and -90dbm
  • step 305 if the received signal strength value In the range of weak signal strength (such as between -90dbm and -98dbm)
  • the received signal strength values are between -10 dbm and -98 dbm.
  • the received signal strength value is
  • the network When the value is below -90dbm, the network is basically not found or cannot be played normally. Therefore, the software makes different task flows depending on the received signal strength value.
  • Step 305 The application processor internal software turns on the control signal indicator to blink at 1 second intervals.
  • the task is to control the switch of the signal indicator through the GPIO (General-purpose I/O) port on the hardware to play the effect of the signal indicator flashing, and remind the user that the current signal strength is sufficient and can be played normally.
  • GPIO General-purpose I/O
  • the signal indicator can be placed in a user-friendly location depending on the shape of the case. In this way, the user can visually recognize whether the current TV broadcast signal environment is suitable for playback by the state of the signal indicator.
  • Step 306 The application processor internal software turns off the signal of the signal indicator blinking at intervals of 1 second, and the control signal indicator is turned off by the GPIO port on the hardware, that is, the signal indicator is turned off.
  • Step 307 The application processing chip turns off the power of the TV module and enters the sleep mode by itself until the next time it is woken up by the internal timer to enter the task flow again.
  • the wake-up interval can be determined according to the usage of the TV mobile phone and the power consumption. It is recommended to be about 1 minute.
  • the mobile multimedia broadcast signal indicating method, device and mobile terminal of the invention breaks the limitation of the existing mobile terminal when providing the mobile multimedia broadcast service, and gives the user a signal light indication according to the broadcast signal in the standby situation, so that the user wants to play the television before playing the television It is convenient and intuitive to understand the current signal environment at any time. If there is no signal indication, it means that the current environment is not suitable for playing TV, so there is no need to waste time to open the TV module, search the network, etc., thus bringing convenience to the user. Effective, practical added value and a good user experience.
  • the mobile multimedia broadcast signal indication method, device and mobile terminal according to the present invention break through the limitations of the existing mobile terminal when providing the mobile multimedia broadcast service, and facilitate the mobile terminal user to conveniently and intuitively understand the current mobile multimedia broadcast signal strength at any time, and avoid Blindly launching mobile multimedia broadcasts brings a bad user experience to users.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Software Systems (AREA)
  • Databases & Information Systems (AREA)
  • Telephone Function (AREA)
  • Mobile Radio Communication Systems (AREA)

Description

移动多媒体广播信号指示方法、 装置及移动终端
技术领域
本发明涉及移动多媒体广播技术， 尤其是一种移动多媒体广播信号指示 方法、 装置及移动终端。
背景技术
移动通讯的迅猛发展有力地推动移动电话向智能化、 小型化以及高性能 方向发展。
到目前为止， 手机智能化是手机发展的主导方向， 而智能手机除了具备 普通手机的功能外，还具备许多附加功能，如高速数据传输、网页浏览、 GPS、 手机电视等。 手机电视业务有两种实现方式： 一种是基于移动运营商的蜂窝 无线网络来实现手机流媒体传送； 另一种是利用数字音讯广播频谱上的数字 多媒体广播来实现多点传送。 这两种方式需要在手机中增加数字电视的接收 模块， 以直接接收数字电视信号。
在本发明中手机电视技术的实现方式为后一种， 即通过数字多媒体广播 方式来接收电视信号。 随着手机电视标准的确定， 将电视收看功能和手机相 结合已经成为现实。 另外， 电视模块釆用的技术标准为国内 CMMB (移动多 媒体广播电视）标准。
目前 CMMB手机电视无线信号在空中传播时， 受到建筑物的阻挡，信号 衰减比较严重， 从而造成楼宇、 地铁、 隧道内部等区域的广播信号微弱甚至 出现接收盲区。 在信号微弱的环境下， 手机电视播放画面会产生不顺畅的现 象， 此外， 在接收盲区， 即无信号的环境下， 电视手机也会找不到网络， 从 而无法播放。
我们知道， 目前 CMMB电视手机每次从打开电视模块、初始化启动完毕 到找网搜台这段操作时间需要至少 10S以上， 且不同于 GSM或 CDMA等网 络， CMMB广播网络建网还不够完善， 在许多地方存在着盲区。 在^^多情况 下， 刚刚开始接触和使用电视手机的用户并不清楚当前所处的信号环境。 如 果用户在弱信号或者盲区的环境下花了 10S以上的时间却发现电视信号接收 不到或者播放画面质量较差而看不了电视， 那么对于以看电视为主要功能的 电视手机来说， 这种情况如果时常发生将对用户的整体使用感受大打折扣。
发明内容
本发明要解决的技术问题是提供一种移动多媒体广播信号指示方法、 装 置及移动终端， 以便于移动终端用户了解当前移动多媒体广播信号强度， 并 避免因盲目启动移动多媒体广播而带来的不良用户体验。
为解决上述技术问题，本发明提供了一种移动多媒体广播信号指示方法， 该方法基于具有移动多媒体广播节目播放功能的移动终端而实现， 并包括：
( a )所述移动终端接收和解调移动多媒体广播信号， 并处理解调后的移 动多媒体广播信号以获得接收信号强度值； 以及
( b )所述移动终端根据所述接收信号强度值显示接收信号强度。
进一步地， 在步骤（b )中所述接收信号强度是利用指示灯显示的， 若所 述接收信号强度值低于预设的门限值， 则指示灯关闭， 否则， 指示灯打开， 所述门限值是根据移动多媒体广播节目是否能正常播放为依据设定的。
进一步地， 所述接收信号强度划分为至少两个级别， 所述接收信号强敌 的显示方式为釆用颜色、 文字、 图形或指示灯。
进一步地， 步骤（a )是定时周期性执行的。
为解决上述技术问题， 本发明提供一种移动多媒体广播信号指示装置， 该装置包括应用处理模块、移动多媒体广播模块及信号强度显示模块， 其中， 所述移动多媒体广播模块用于接收及解调移动多媒体广播信号， 以及处 理解调后的移动多媒体广播信号以获取并保存接收信号强度值；
所述应用处理模块用于启动所述移动多媒体广播模块， 并根据所述接收 信号强度值控制所述信号强度显示模块进行显示； 以及
所述信号强度显示模块用于釆用可视的方式显示接收信号强度。
进一步地， 所述信号强度显示模块是利用指示灯显示接收信号强度的， 所述应用处理模块若判定所述接收信号强度值低于预设的门限值， 则指示所 述信号强度显示模块关闭指示灯， 否则， 指示信号强度显示模块打开指示灯； 所述门限值是根据移动多媒体广播节目是否能正常播放为依据设定的。
进一步地， 所述信号强度显示模块是釆用颜色、 文字或图形来显示接收 信号强度的， 所述接收信号强度划分为至少两个级别。
进一步地， 所述应用处理模块是定时启动所述移动多媒体广播模块的。 为解决上述技术问题， 本发明还提供一种移动终端， 其具有移动多媒体 广播节目播放功能， 所述移动终端包括移动多媒体广播信号指示装置， 该装 置包括应用处理模块、 移动多媒体广播模块及信号强度显示模块， 其中， 所述移动多媒体广播模块用于接收及解调移动多媒体广播信号， 以及处 理解调后的移动多媒体广播信号以获取并保存接收信号强度值；
所述应用处理模块用于启动所述移动多媒体广播模块， 并根据所述接收 信号强度值控制所述信号强度显示模块进行显示；
所述信号强度显示模块用于釆用可视的方式显示接收信号强度。
进一步地， 所述信号强度显示模块是利用指示灯显示接收信号强度的， 所述应用处理模块若判定所述接收信号强度值低于预设的门限值， 则指示所 述信号强度显示模块关闭指示灯， 否则， 指示信号强度显示模块打开指示灯； 所述门限值是根据移动多媒体广播节目是否能正常播放为依据设定的。
相比于现有技术， 本发明的移动多媒体广播信号指示方法、 装置及移动 终端突破了现有移动终端在提供移动多媒体广播服务时的局限， 使用户能够 随时方便直观地了解当前信号强度， 给用户带来方便、 有效、 实用的附加值 及良好的用户体验。 附图概述
图 1为本发明移动多媒体广播信号指示装置示意图。
图 2是本发明移动多媒体广播信号指示装置应用实例的示意图。
图 3是釆用图 2的装置实现的信号指示方法流程图。 本发明的较佳实施方式
本发明提供了一种移动多媒体广播信号指示方法， 该方法基于具有移动 多媒体广播节目播放功能的移动终端而实现， 并包括： 步骤一： 移动终端接收和解调移动多媒体广播信号， 并处理解调后的移 动多媒体广播信号以获取接收信号强度值； 以及 步骤二： 移动终端根据接收信号强度值显示接收信号强度。
接收信号强度划分为至少两个级别， 可以根据具体应用情况釆用颜色、 文字、 图形或指示灯等可视方式来实现接收信号强度的分级显示。
根据具体应用情况釆用颜色、 文字、 图形或指示灯等可视方式来实现接 收信号强度的分级显示。
移动终端定时地执行以上步骤，并不断地更新接收信号强度的显示情况， 以使用户实时地了解当前移动多媒体广播信号的接收强度， 从而更有效地避 免在花费了时间打开移动多媒体广播节目后播放不顺畅或根本没有网络覆盖 的情况。
为了实现以上方法， 本发明还提供了一种具有移动多媒体广播节目播放 功能的移动终端及移动多媒体广播信号指示装置。 如图 1所示， 本发明移动 终端及移动多媒体广播信号指示装置包括移动多媒体广播模块、 应用处理模 块及信号强度显示模块， 其中，
所述移动多媒体广播模块用于接收及解调移动多媒体广播信号， 以及处 理解调后的移动多媒体广播信号以获取接收信号强度值；
所述应用处理模块用于定时启动所述移动多媒体广播模块， 获取所述接 收信号强度值， 并根据所述接收信号强度值控制所述信号强度显示模块进行 显示； 以及
所述信号强度显示模块用于釆用可视的方式显示接收信号强度。 接收信 号强度可以划分为至少两个级别， 所述信号强度显示模块可根据具体应用情 况釆用颜色、 文字、 图形或指示灯等可视方式来实现接收信号强度的分级显 示。 举例来说， 当釆用单个指示灯时， 可以通过指示灯的明灭来指示当前接 收信号强度是否可以支持正常播放， 以移动多媒体广播节目是否能正常播放 为依据来预先设定信号强度门限值。 如果应用处理模块判定所述接收信号强 度值低于信号强度门限值， 则指示信号强度显示模块关闭指示灯， 否则， 指 示信号强度显示模块打开指示灯。
目前最常见的接收移动多媒体广播信号的终端是手机， 移动多媒体广播 节目俗称手机电视， 以下以具体应用实例来说明本发明移动多媒体广播信号 指示装置。 如图 2所示， 由电视接收模块 1和电视解调芯片 2来实现以上移 动多媒体广播模块， 由应用处理芯片 3来实现以上应用处理模块， 由信号指 示灯 4来实现以上信号强度显示模块。 该移动多媒体广播信号指示装置所实 现的移动多媒体广播信号指示方法包括以下步骤。
步骤 301 : 在待机情况下， 应用处理芯片通过内部定时器或移动终端定 时器被自动唤醒， 并根据内部软件设置的任务来启动电视模块， 即分别给电 视接收模块和电视解调芯片上电。
步骤 302: 电视接收模块自动接收电视广播信号， 并将电视广播信号传 送给电视解调芯片， 电视解调芯片将输入信号进行解调， 将解调后的信号经 由内部电路处理而得到接收信号强度值 (RSSI), 并将该接收信号强度值存入 寄存器中。
步骤 303 : 应用处理芯片读取电视解调芯片内部寄存器中的接收信号强 度值。
步骤 304: 根据接收信号强度值判断当前环境信号是否能支持正常播放， 如果接收信号强度值在正常信号强度范围内 （如在 -lOdbm和 -90dbm之间） ， 执行步骤 305 , 如果接收信号强度值在弱信号强度范围内 （如在 -90dbm和 -98dbm之间） ， 则执行步骤 306;
一般接收信号强度值在- lOdbm和- 98dbm之间。 当接收信号强度值在
-90dbm以下时， 基本上找不到网络或无法正常播放。 因此根据接收信号强度 值的不同， 软件作出不同的任务流程。
步骤 305: 应用处理器内部软件开启控制信号指示灯的以 1秒间隔闪烁 的任务， 在硬件上通过 GPIO ( General-purpose I/O, 通用输入输出） 口来控 制信号指示灯的开关， 以起到信号指示灯闪烁的效果， 并提醒用户当前信号 强度足够， 可以正常播放手机电视。
信号指示灯可以根据机壳造型被置于用户便于看见的地方。 这样， 用户 就可以通过信号指示灯的状态直观地识别当前电视广播信号环境是否适合播 放。
步骤 306: 应用处理器内部软件关闭信号指示灯的以 1秒间隔闪烁的任 务， 在硬件上通过 GPIO 口来控制信号指示灯处于关闭状态， 即熄灭信号指 示灯。
步骤 307: 应用处理芯片将电视模块电源关断， 同时自身进入睡眠模式， 直到下一次被内部定时器唤醒以再次进入任务流程。
唤醒间隔时间可以根据电视手机实网使用情况和耗电量的权衡来决定， 建议为 1分钟左右的时间。
本发明的移动多媒体广播信号指示方法、 装置及移动终端突破了现有移 动终端在提供移动多媒体广播服务时的局限， 在待机情况下根据广播信号给 予用户信号灯指示， 使用户在想要播放电视之前随时方便直观地了解当前信 号环境， 如果遇到没有信号指示的情况， 说明当前环境不适合播放电视， 这 样也就不必浪费时间来进行打开电视模块、 搜网等操作， 从而给用户带来方 便、 有效、 实用的附加值及良好的用户体验。
工业实用性
根据本发明的移动多媒体广播信号指示方法、 装置及移动终端突破了现 有移动终端在提供移动多媒体广播服务时的局限， 便于移动终端用户随时方 便直观地了解当前移动多媒体广播信号强度， 并避免因盲目启动移动多媒体 广播而给用户带来不良用户体验。

Claims

权 利 要 求 书
1、 一种移动多媒体广播信号指示方法，其基于具有移动多媒体广播节目 播放功能的移动终端而实现并包括：
( a )所述移动终端接收和解调移动多媒体广播信号， 并处理解调后的移 动多媒体广播信号以获得接收信号强度值； 以及
( b )所述移动终端根据所述接收信号强度值显示接收信号强度。
2、 如权利要求 1所述的方法， 其中在所述步骤（b ) 中的所述接收信号 强度是利用指示灯显示的， 若所述接收信号强度值低于预设的门限值， 则指 示灯关闭， 否则， 指示灯打开， 所述门限值是根据移动多媒体广播节目是否 能正常播放为依据设定的。
3、 如权利要求 1所述的方法，其中所述接收信号强度划分为至少两个级 另 J , 所述接收信号强度的显示方式为釆用颜色、 文字、 图形或指示灯。
4、 如权利要求 1至 3中任一项所述的方法， 其中所述步骤（a )是定时 周期性执行的。
5、 一种移动多媒体广播信号指示装置， 包括：
移动多媒体广播模块， 其用于接收及解调移动多媒体广播信号， 以及处 理解调后的移动多媒体广播信号以获取并保存接收信号强度值；
信号强度显示模块， 其用于釆用可视的方式显示接收信号强度； 以及 应用处理模块， 其用于启动所述移动多媒体广播模块， 并根据所述接收 信号强度值控制所述信号强度显示模块进行显示。
6、 如权利要求 5所述的装置，其中所述信号强度显示模块是利用指示灯 显示接收信号强度的， 所述应用处理模块若判定所述接收信号强度值低于预 设的门限值， 则指示所述信号强度显示模块关闭指示灯， 否则， 指示信号强 度显示模块打开指示灯； 所述门限值是根据移动多媒体广播节目是否能正常 播放为依据设定的。
7、 如权利要求 5所述的装置， 其中所述信号强度显示模块是釆用颜色、 文字或图形来显示接收信号强度的，所述接收信号强度划分为至少两个级别。
8、 如权利要求 5至 7中任一项所述的装置，其中所述应用处理模块是定 时启动所述移动多媒体广播模块的。
9、 一种移动终端，其具有移动多媒体广播节目播放功能并包括移动多媒 体广播信号指示装置， 所述装置包括：
移动多媒体广播模块， 其用于接收及解调移动多媒体广播信号， 以及处 理解调后的移动多媒体广播信号以获取并保存接收信号强度值；
信号强度显示模块， 其用于釆用可视的方式显示接收信号强度； 以及 应用处理模块， 其用于启动所述移动多媒体广播模块， 并根据所述接收 信号强度值控制所述信号强度显示模块进行显示。
10、 如权利要求 9所述的移动终端， 其中所述信号强度显示模块是利用 指示灯显示接收信号强度的 , 所述应用处理模块若判定所述接收信号强度值 低于预设的门限值， 则指示所述信号强度显示模块关闭指示灯， 否则， 指示 信号强度显示模块打开指示灯； 所述门限值是根据移动多媒体广播节目是否 能正常播放为依据设定的。
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