CN100466726C - 一种流媒体节目的点播方法 - Google Patents

一种流媒体节目的点播方法 Download PDF

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Publication number
CN100466726C
CN100466726C CNB2006100008723A CN200610000872A CN100466726C CN 100466726 C CN100466726 C CN 100466726C CN B2006100008723 A CNB2006100008723 A CN B2006100008723A CN 200610000872 A CN200610000872 A CN 200610000872A CN 100466726 C CN100466726 C CN 100466726C
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wireless terminal
flow
user
medium performance
management system
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CN1852424A (zh
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张友志
王志敏
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Abstract

本发明是一种流媒体节目的点播方法，包括步骤：用户通过无线终端点播流媒体节目，并将点播信息发送给内容管理系统；内容管理系统接受点播；播放时间到达时，内容管理系统向无线终端发送点播流媒体节目播放时间到达提醒；无线终端提示用户播放点播流媒体节目；内容管理系统根据所述的点播信息，发送在指定时间向指定终端播放点播流媒体节目的指令给流媒体服务器；流媒体服务器接收到指令后发送流媒体到无线终端；无线终端播放流媒体节目。实施本发明使用户不受流媒体节目播放时间的限制；可节省存储空间；使网络服务器更加安全；并且可以有效的保护内容提供商的合法利益。

Description

一种流媒体节目的点播方法
技术领域
本发明涉及无线通信领域，尤其是涉及一种无线网络中广播流媒体节目的点播方法。
背景技术
随着网络技术的不断发展，各种网络的不断融合和演进，固定、无线和电视网络相互渗透，为用户提供了一致的业务体验和感受；随着无线终端集成度的提高及信息处理能力的增强，目前大多数无线终端都可以提供具有一定分辨率与色彩度的彩色屏幕；另外，随着新的无线网络技术的发展，能够提供更宽的无线数据传输带宽。因此，在这种条件下，基于无线网络的实时流媒体业务成为了一种新兴的业务，并且具有很好的发展前景。
图1是流媒体节目播放系统物理组网图，如图1所示，无线终端，如3G手机等，通过无线网络中各功能实体与流媒体服务器及其内容管理系统连接，实现实时流媒体业务。当前的实时流媒体业务中，一般采用流媒体服务器广播/多播的方式播放流媒体节目，用户只能根据流媒体服务器提供的节目单来选择节目收看，节目的编排和播放时间完全由服务器控制；用户一旦错过了某一个想要收看的节目，只能等待该节目重播。
现有技术中，NPVR(Network Personal Video Records，个人网络视频录像)可以间接实现流媒体节目的点播功能，它可以由用户设定时间录制节目，然后在用户方便的时候收看节目。比如在奥运会期间，当用户由于上班等原因无法按时收看赛事直播时，可以利用NPVR，将某个时段某个频道直播的赛事内容录制在网络服务器或者本地存储设备上，然后用户下班的时候再行收看。用户可以通过多种方式录制节目，可以一边收看某个频道一边录制其它频道，还能够同时录制多个频道，这样
就使用户具有了“分身术”，不用担心无法收看同时播放的多个频道的节目。
但是，NPVR存在着如下缺点：
1.浪费存储资源：由于现有的NPVR技术是将某个时段某个频道的播放内容录制在网络服务器或者本地存储设备上，实现了广播流媒体节目的时移功能，在用户数量比较少的情况下，网络服务器不需要大量的存储空间，该方案是可行的；但是随着使用NPVR的用户数量的急剧增加，网络服务器的存储成本将大大增加，同样的内容需要多份复制，造成存储资源的巨大浪费。对于本地录制方式，需要占用本地终端存储空间，增加终端成本，尤其对于体积越来越小、重量越来越轻的无线终端来说，有非常大的实现难度。另外，可能存在用户恶意录制并存储无用节目，占用网络服务器存储空间的现象，由于网络服务器的存储资源是有限的，从而会造成其它用户没有存储空间存储录制节目的问题。
2.存在版权问题：对于本地录制方式，用户可能在非授权的情况下进行非法拷贝和散发，会损害内容提供商的利益。
发明内容
针对以上现有技术的不足，本发明的目的在于，提供一种方法，在无线网络中，用户可以使用无线终端控制以广播方式播放的流媒体节目的播放时间，实现点播播放流媒体节目。
为实现本目的，本发明公开了一种无线网络中流媒体节目的点播方法，包括步骤：
步骤(A)用户通过无线终端点播流媒体节目，并将点播信息通过无线网络发送给内容管理系统；
步骤(B)内容管理系统接受点播；
步骤(C)播放时间到达时，内容管理系统向无线终端发送点播流媒体节目播放时间到达提醒；
步骤(D)无线终端提示用户播放点播流媒体节目；
步骤(E)内容管理系统根据所述的点播信息，发送在指定时间向指定终端播放点播流媒体节目的指令给流媒体服务器；
步骤(F)流媒体服务器接收到指令后发送流媒体到无线终端；
步骤(G)无线终端播放流媒体节目。
步骤(A)进一步包括步骤：
步骤(A1)内容管理系统发送节目单给无线终端；
步骤(A2)用户通过无线终端进入节目预定界面，在节目单中选择流媒体节目，预定节目播放时间；
步骤(A3)无线终端将点播信息通过无线网络发送给内容管理系统。
步骤(A)所述的用户通过无线终端点播流媒体节目包括用户通过无线终端以WAP方式登陆Portal，在WAP界面进行流媒体节目的点播。
步骤(A2)所述的用户在节目单中选择流媒体节目是用户通过标识选择流媒体节目。所述的标识包括名称、ID。
步骤(A3)所述的点播信息包括节目信息和播放时间信息。
步骤(A3)所述的无线终端将点播信息发送给内容管理系统的发送方式包括短消息方式和USSD方式。
步骤(B)所述的内容管理系统接受点播为内容管理系统接收并保存用户点播流媒体节目的点播信息。
步骤(C)所述的内容管理系统向无线终端发送点播流媒体节目播放时间到达提醒是内容管理系统向无线终端发送播放指令。
步骤(D)所述的无线终端提示用户播放点播流媒体节目是无线终端通过振铃或图形/文字信息提示用户播放点播流媒体节目。
步骤(D)所述的无线终端提示用户播放点播流媒体节目后还包括步骤：用户选择是否播放点播流媒体节目。所述的用户选择是否播放点播流媒体节目包括用户确认播放点播流媒体节目和用户放弃播放点播流媒体节目：当用户选择放弃播放点播流媒体节目时，内容管理系统将自动删除点播信息，同时取消该次点播流媒体节目的播放。
实施本发明有以下几个优点：
1.用户不受流媒体节目播放时间的限制；
2.节省存储空间：本发明中由于只是以配置文件的方式来指定流媒体节目的编排和播放，所有的用户都共享同一份节目源，不用每个用户拷贝一份，因此节省了存储空间；
3.网络服务器更加安全：实施本发明不需要拷贝占用大量存储空间的流媒体数据，无线终端用户无法恶意录制并存储流媒体节目，占用网络服务器的存储空间；
4.本发明中仅以广播方式播放流媒体节目，用户不能本地复制和存储节目，有效的保护了内容提供商的合法利益。
附图说明
图1是流媒体节目播放系统物理组网图；
图2是本发明的流媒体节目的点播方法实施方式一的流程图；
图3是本发明的流媒体节目的点播方法实施方式二的流程图。
具体实施方式
本发明公开的方法是，在无线网络中，用户通过无线终端对以广播方式播放的流媒体节目进行点播，所谓点播，即为控制其播放时间，在播放时间到达时，由流媒体服务器向指定无线终端发送流媒体，无线终端播放流媒体节目。
本发明的方法的实施方式一是播放时间到达时，经用户确认后，对点播流媒体节目进行播放，其详细描述如下：
用户在无线终端上进行点播操作，在节目单中选择想要收看的流媒体节目；无线终端自动提取点播信息，经用户确定后，无线终端将点播信息通过短消息的方式发送给无线网络，由无线网络发送给内容管理系统；内容管理系统接收并保存用户点播流媒体节目的点播信息；播放时间到达时，内容管理系统向无线终端发送播放指令；无线终端通过振铃或图形/文字等信息提示用户，在用户确认播放点播流媒体节目后，内容管理系统根据点播信息，向流媒体服务器发送向指定终端播放点播流媒体节目的指令，流媒体服务器接收到指令后发送流媒体到无线终端；无线终端播放流媒体节目。如果用户在收到无线终端发送的振铃或图形/文字等提示信息后，选择放弃播放点播流媒体节目时，内容管理系统将自动删除点播信息，同时取消该次点播流媒体节目的播放。
下面结合附图做进一步说明：
图2是本发明的流媒体节目的点播方法实施方式一的流程图。如图2所示，本发明的详细步骤是：
步骤(1)内容管理系统发送节目单给无线终端：内容管理系统对流媒体服务器中的流媒体节目进行信息汇总，并制作成节目单发送给无线终端；
步骤(2)用户通过无线终端进入节目预定界面，在节目单中通过标识选择流媒体节目，标识包括名称、ID等，预定节目播放时间；
步骤(3)无线终端将节目信息和播放时间信息发送给内容管理系统：无线终端自动提取节目信息和播放时间信息，该些信息统称为点播信息，经用户确定后，无线终端将上述点播信息通过短消息的方式发送给无线网络，由无线网络传送给内容管理系统；
步骤(4)内容管理系统接收并保存用户点播流媒体节目的点播信息；
步骤(5)播放时间到达时，内容管理系统向无线终端发送点播流媒体节目播放时间到达提醒，即内容管理系统向无线终端发送播放指令；
步骤(6)无线终端通过振铃或图形/文字等信息提示用户播放点播流媒体节目；
步骤(7)用户需要确认播放点播流媒体节目；当用户选择放弃播放点播流媒体节目时，内容管理系统将自动删除点播信息，同时取消该次点播流媒体节目的播放；
步骤(8)内容管理系统根据用户的点播信息，发送向指定终端播放点播流媒体节目的指令给流媒体服务器；
步骤(9)流媒体服务器接收到指令后发送流媒体到无线终端；
步骤(10)无线终端播放流媒体节目。
本发明的方法的实施方式二是播放时间到达时，不需经过用户确认，自动对点播流媒体节目进行播放，其详细描述如下：
用户在无线终端上进行点播操作，在节目单中选择想要收看的流媒体节目；无线终端自动提取点播信息，经用户确定后，无线终端将点播信息通过短消息的方式发送给无线网络，由无线网络发送给内容管理系统；内容管理系统接收并保存用户点播流媒体节目的点播信息；播放时间到达时，内容管理系统向无线终端发送播放指令；无线终端通过振铃或图形/文字等信息提示用户，同时内容管理系统根据点播信息，向流媒体服务器发送向指定终端播放点播流媒体节目的指令，流媒体服务器接收到指令后发送流媒体到无线终端；无线终端播放流媒体节目。
图3是本发明的流媒体节目的点播方法实施方式二的流程图。如图3所示，本发明的详细步骤是：
步骤(1)内容管理系统发送节目单给无线终端：内容管理系统对流媒体服务器中的广播流媒体节目进行信息汇总，并制作成节目单发送给无线终端；
步骤(2)用户通过无线终端进入节目预定界面，在节目单中通过标识选择流媒体节目，标识如名称、ID等，预定节目播放时间；
步骤(3)无线终端将节目信息和播放时间信息发送给内容管理系统：无线终端自动提取节目信息和播放时间信息，该些信息统称为点播信息，经用户确定后，无线终端将上述点播信息通过短消息的方式发送给无线网络，由无线网络传送给内容管理系统；
步骤(4)内容管理系统接收并保存用户点播流媒体节目的点播信息；
步骤(5)播放时间到达时，内容管理系统向无线终端发送点播流媒体节目播放时间到达提醒，即内容管理系统向无线终端发送播放指令；
步骤(6)无线终端通过振铃或图形/文字等信息提示用户播放点播流媒体节目，同时内容管理系统根据用户的点播信息，发送向指定终端播放点播流媒体节目的指令给流媒体服务器；
步骤(7)流媒体服务器接收到指令后发送流媒体到无线终端；
步骤(8)无线终端播放流媒体节目。
本发明中，无线终端将节目信息和播放时间信息等点播信息传送给内容管理系统除了采用上述发送短消息的方式发送给内容管理系统外，还可以通过USSD(Unstructured Supplementary Service Data，未结构化补充业务数据)方式实现。USSD是基于GSM/WCDMA网络的新型交互式数据业务，它是在无线的短消息系统技术上推出的新业务，可以弥补传统短消息的某些技术不足。另外用户还可以通过无线终端以WAP方式登陆门户(Portal)，在WAP界面上进行点播流媒体节目的操作。
实施本发明有以下几个优点：
1.用户不受流媒体节目播放时间的限制；
2.节省存储空间：本发明中由于只是以配置文件的方式来指定流媒体节目的编排和播放，所有的用户都共享同一份节目源，不用每个用户拷贝一份，因此节省了存储空间；
3.网络服务器更加安全：实施本发明不需要拷贝占用大量存储空间的流媒体数据，无线终端用户无法恶意录制并存储流媒体节目，占用网络服务器的存储空间；
4.本发明中仅以广播方式播放流媒体节目，用户不能本地复制和存储节目，有效的保护了内容提供商的合法利益。
以上所述，仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本发明的保护范围之内。

Claims (12)

1.一种无线网络中流媒体节目的点播方法，其特征在于，包括：
步骤(A)用户通过无线终端点播流媒体节目，并将点播信息通过无线网络发送给内容管理系统；
步骤(B)内容管理系统接受点播；
步骤(C)播放时间到达时，内容管理系统向无线终端发送点播流媒体节目播放时间到达提醒；
步骤(D)无线终端提示用户播放点播流媒体节目；
步骤(E)内容管理系统根据所述的点播信息，发送在指定时间向指定终端播放点播流媒体节目的指令给流媒体服务器；
步骤(F)流媒体服务器接收到指令后发送流媒体到无线终端；
步骤(G)无线终端播放流媒体节目。
2.如权利要求1所述的方法，其特征在于：步骤(A)进一步包括步骤：
步骤(A1)内容管理系统发送节目单给无线终端；
步骤(A2)用户通过无线终端进入节目预定界面，在节目单中选择流媒体节目，预定节目播放时间；
步骤(A3)无线终端将点播信息通过无线网络发送给内容管理系统。
3.如权利要求1所述的方法，其特征在于：步骤(A)所述的用户通过无线终端点播流媒体节目包括用户通过无线终端以WAP方式登陆Portal，在WAP界面进行流媒体节目的点播。
4.如权利要求2所述的方法，其特征在于：步骤(A2)所述的用户在节目单中选择流媒体节目是用户通过标识选择流媒体节目。
5.如权利要求4所述的方法，其特征在于：所述的标识包括名称、ID。
6.如权利要求2所述的方法，其特征在于：步骤(A3)所述的点播信息包括节目信息和播放时间信息。
7.如权利要求2所述的方法，其特征在于：步骤(A3)所述的无线终端将点播信息发送给内容管理系统的发送方式包括短消息方式和USSD方式。
8.如权利要求1所述的方法，其特征在于：步骤(B)所述的内容管理系统接受点播为内容管理系统接收并保存用户点播流媒体节目的点播信息。
9.如权利要求1所述的方法，其特征在于：步骤(C)所述的内容管理系统向无线终端发送点播流媒体节目播放时间到达提醒是内容管理系统向无线终端发送播放指令。
10.如权利要求1所述的方法，其特征在于：步骤(D)所述的无线终端提示用户播放点播流媒体节目是无线终端通过振铃或图形/文字信息提示用户播放点播流媒体节目。
11.如权利要求1所述的方法，其特征在于：步骤(D)所述的无线终端提示用户播放点播流媒体节目后还包括步骤：用户选择是否播放点播流媒体节目。
12.如权利要求11所述的方法，其特征在于：所述的用户选择是否播放点播流媒体节目包括用户确认播放点播流媒体节目和用户放弃播放点播流媒体节目：当用户选择放弃播放点播流媒体节目时，内容管理系统将自动删除点播信息，同时取消该次点播流媒体节目的播放。
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