CN101479972A - 向3g无线手机提供基于覆盖的增强电视服务的方法和设备 - Google Patents

向3g无线手机提供基于覆盖的增强电视服务的方法和设备 Download PDF

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CN101479972A
CN101479972A CNA2007800245098A CN200780024509A CN101479972A CN 101479972 A CN101479972 A CN 101479972A CN A2007800245098 A CNA2007800245098 A CN A2007800245098A CN 200780024509 A CN200780024509 A CN 200780024509A CN 101479972 A CN101479972 A CN 101479972A
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programme
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郭华
A·N·内特拉瓦利
K·K·萨布纳尼
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Nokia of America Corp
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    • H—ELECTRICITY
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    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
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    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
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    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
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    • 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]
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    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
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    • H04H60/38—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
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Abstract

本发明涉及增强移动电话上现有电视服务的新方案。除用于通过多播或广播信道承载的电视节目的视频流外，为每个用户建立单播信道以提供交互式且比用于电视节目的视频流带宽密集度更低的内容。此类交互式内容可包括电视指南、用于演员表成员的传记和诸如“美国偶像”等受欢迎电视节目的投票。本发明包括一种向能够接收电视节目的移动装置提供增强内容信息的方法，移动装置中包括有GUI以显示增强内容信息和从所述移动装置传送与增强内容有关的信息。方法包括向所述移动装置提供单播信道和经所述单播信道传送增强内容的步骤，增强内容与在所述移动装置上在观看的电视节目有关。也公开了一种移动设备，该移动设备用于提供与在其上面接收的电视节目有关的增强内容信息。设备包括用于提供处理在接收的电视节目的能力的处理器和用于显示增强内容往上并允许从移动设备传送与所述增强内容有关的信息的GUI，其中，增强内容信息经单播信道提供到移动设备，并且电视节目通过广播信道提供。

Description

向3G无线手机提供基于覆盖的增强电视服务的方法和设备
技术领域
本发明一般涉及无线电信领域，具体地说，涉及提供到无线装置的电视服务。
背景技术
宽带服务提供商在竞争提供话音、数据和视频的“三重播放”服务时，无线服务提供商也在竞争向移动电话提供电视节目以便完成电话、因特网和电视服务的“移动三重播放”。今天的移动电话集成了大量的其它特性，如web浏览器、PDA、MP3播放器、AM/FM收音机、GPS、相机、游戏控制台等。然而，向移动电话提供电视服务只是在开始阶段。
多个无线服务提供商目前在使用现有3G单播信道提供移动电视服务。弗莱森公司(Verizon)提供VCAST服务。在CDMA2000分组数据或EvDO网络中，对于使用3G单播信道提供的短剪辑，它是下载后播放服务。Sprint在CDMA2000分组数据网络中使用3G单播信道提供13信道MobiTV服务。诸如辛格勒公司(Cingular)、KDDI公司、SK电信和T-Mobile等其它公司也在现有3G分组数据或电路数据网络中使用3G单播信道提供移动电视服务。
单播最适用于向不同接收器提供各个剪辑。然而，它不可扩展。广播/多播是在使网络资源使用降到最低的同时向多个接收器传送相同内容的有效途径。使用广播多播服务，直播电视节目可有效地输送到移动用户。
两种类别的网络和标准正在开发之中以便提供广播多播服务，即，3G网络和基于OFDM的网络。
对于3G网络，广播多播架构在用于CDMA网络的3GPP2和用于UTMS网络的3GPP两者中正进行标准化过程。在3GPP2中，它称为使用EvDO-Rev0的广播多播服务(BCMCS)、使用EvDO-RevA的增强BCMCS(eBCMCS)，并且在3GPP中，它称为多媒体广播多播服务(MBMS)。两种架构均从网络向移动手机提供单向广播多播服务。
要提供3G广播多播服务，3G网络和移动手机两者均需要升级。由于3G空中接口吞吐量受到限制，因此，可使用3G广播多播信道提供的电视信道数量受到限制。例如，使用EvDO-Rev0的BCMCS可提供每扇区每载波300-400Kbps广播多播吞吐量。每个电视信道需要最低60Kbps带宽。这意味着通过3G广播多播只可提供5-6个电视信道。
有多个用于移动电视服务的基于OFDM的数字广播标准正在开发之中。
·手持数字视频广播(DVB-H)在欧洲正在开发。它是用于手持装置的地面数字视频广播(DVB-T)的修改。
·地面综合业务数字广播(ISDB-T)是在日本正开发的数字广播标准，它适用于移动接收。
·数字多媒体广播(DMB)是欧洲电信标准委员会(ETSI)最近(2005年7月)批准的标准。试验正在欧洲和韩国进行。
·仅前向链路(FLO)是高通建立的专有广播网络。
与3G广播多播相比，数字广播网络提供了更高的容量。例如，每个DVB-H网络可支持13.3Mbps吞吐量，这可转换成每个有300Kbps带宽的40个电视信道。然而，要使用上述数字广播标准提供移动电视服务，需要建立新广播网络，并且也需要移动手机支持。这要求相当大的资本投资。
3G广播多播服务提供可扩展的单向传输，表现在不存在可由接收器向发送器提供任何种类反馈的适当机制。类似地，模拟和数字广播网络也只提供单向传输。除切换信道外，用户对他们观看的内容没有任何其它控制。相应地，需要从移动装置提供交互更强的电视观看体验，同时将网络内的资本投资降到最低。
发明内容
根据涉及增强移动电话上现有电视服务的新方案的本发明原理，在现有技术之上做出了改进。除用于通过多播或广播信道承载的电视节目的视频流外，为每个用户建立单播信道以提供交互式且比用于电视节目的视频流带宽密集度更低的内容。此类交互式内容可包括电视指南、用于演员表成员的传记和诸如“美国偶像”等受欢迎电视节目的投票。
本发明包括一种向能够接收电视节目的移动装置提供增强内容信息的方法，移动装置中包括有GUI以显示增强内容信息和从所述移动装置传送与增强内容有关的信息。方法包括向所述移动装置提供单播信道和经所述单播信道传送增强内容的步骤，增强内容与在所述移动装置上观看的电视节目有关。
也公开了一种移动设备，该移动设备用于提供与其上面接收的电视节目有关的增强内容信息。设备包括用于提供处理在接收的电视节目的能力的处理器和用于显示增强内容信息并允许从移动设备传送与所述增强内容有关的信息的GUI，其中，增强内容信息经单播信道提供到移动设备，并且电视节目通过广播信道提供。
附图说明
通过结合附图考虑以下详细说明，可轻松理解本发明的示教，其中：
图1示出用于在FLO和CDMA EvDO网络中提供增强内容获取的示范架构；
图2是用于在DVB-H和GPRS/UMTS网络中提供增强内容获取的示范架构；以及
图3是用于实现根据本发明的增强电视服务的示范GUI。
具体实施方式
现在将参照图形，描述本发明的示范实施例，在下面的说明期间可同时参照其中的几个图形。
3G广播多播服务提供可扩展的单向传输，表现在不存在可由接收器向发送器提供任何种类反馈的适当机制。类似地，模拟和数字广播网络也只提供单向传输。除切换信道外，用户对他们观看的内容没有任何其它控制。
要提供增强的移动电视观看体验，我们根据本发明公开了使用3G单播信道发送与用户当前观看的电视节目有关的交互式内容。参照图1，它示出了在具有高通的Media FLO和CDMA EvDO网络的组合架构上下文中，用于通过EvDO单播信道110提供增强电视服务的本发明示范实现100。正如将理解的一样，包括直播流140或来自服务器S1的存储剪辑150的电视节目提供到媒体服务器160，并随后使用FLO广播信道120或EvDO广播多播信道130提供到移动用户170。交互式和增强内容可存储在存储了电视节目的服务器S1或在单独的服务器S2上。图1也示出提供交互式和增强内容的EvDO单播信道110是在媒体服务器160与移动手机用户170之间提供的双向信道。
图2以类似于图1的方式，示出通过具有DVB-H和GPRS/UMTS网络的组合网络架构内的GPRS/UMTS单播信道210，用于根据本发明提供增强内容的示范实施例200。电视节目使用DVB-H广播信道220或GPRS/UMTS广播多播信道230提供。虽然图1和图2在组合网络架构上下文中示出本发明，但将理解，本发明将在同时向移动提供广播或多播信道和单播信道两者的任何单个架构内发挥作用。
在图1和图2所示示范架构中，电视节目可从直播流(140，240)或从服务器S1上存储的剪辑(150，250)提供。增强内容存储在服务器S2上。如上所述，S1和S2也可合并到同一服务器上。正如将理解的一样，媒体服务器(160，260)负责将电视节目以流方式传送到移动手机(170，270)。另外，媒体服务器负责解释用户请求和从服务器S2获取增强内容，并将它通过单播信道(110，210)发送到移动手机(170，270)。
在本发明的示范实施例中，交互式内容与电视节目相关联，并且可方便地由观看者通过在普通电视节目顶部显示的覆盖图形用户界面(GUI)访问。
图3示出示例GUI 300，其中，菜单310占据了移动装置330屏幕320的小部分。根据本发明，菜单项可在例如需要增强内容获取的情况下，通过使用键盘输入或触摸屏功能，根据需要显示。观看者不需要菜单项信息时，可通过例如超时特性或者按压某个按键或几个按键或者激活屏幕上的某个区域，从屏幕隐藏菜单。
根据本发明，与可显示的电视节目有关的增强内容的一个示范类型可包括具有诸如以下信息的交互式电视指南350：
(1)其它电视信道上在播放什么内容？
(2)此特定节目在将来何时重放？
(3)以前什么时候播放了此节目？
(4)是否有内容与此节目有关的其它节目？它们将在将来的什么时候播放？
(5)观看者喜欢当前节目时有哪些其它推荐节目？
与电视节目有关的另一类型增强内容可包括诸如以下的背景信息360：
(1)演员表成员是谁？
(2)哪个演员在节目中扮演哪个角色？
(3)有关演员表成员、运动员、新闻广播员或名人的传记信息是什么？
(4)电视节目或电影的制作时间？
仍有的另一类型的增强内容可能是GUI 370，发送诸如“美国偶像”等其中观看者的投票确定比赛获胜者的受欢迎电视节目的观看者投票。
增强内容的目标是让观看者方便地访问可从显示电视节目的移动电话访问的电视节目有关的信息。由于当前可用广播多播网络中的单向传输限制，此特性使用这些网络是不可行的。然而，它可使用3G单播信道(或GPRS/UMTS单播信道)提供。由于多个原因，单播对于输送增强内容是理想的解决方案。增强内容由观看者按个体访问，这意味着内容通常在不同时间由不同观看者访问。因此，多播或广播机制无法使用。增强内容也比用于电视节目的视频内容带宽密集度更低。因此，无线网络系统容量将不会受到用于增强内容分发的单播业务的严重影响。
注意，本发明的增强电视服务可与其中电视节目根据观看者反馈而动态更改的“交互式电视”不同。提议的增强电视服务只为观看者提供访问与其移动装置上显示的电视节目有关的信息的方便方式。
正如从图1和图2可看到的一样，为支持本发明的增强电视服务，需要更新以下网元。
移动手机上的视频播放器程序需要包括GUI和协议以请求和接收来自网络的增强内容。对于覆盖GUI在移动装置的实现，用于此类实现的节目计划技术将为本领域技术人员所理解，并且无需在此申请中进一步论述。
媒体服务器需要更新以协调普通电视节目和与电视节目相关联的增强内容的流传送。
存储服务器需要更新以包括增强内容的存储以及能够处理增强内容请求和具有能够处理来自移动用户的交互式响应和适当地转发这些响应的能力。
因此，本发明描述了用于在3G和其它移动电话上提供增强电视服务的新概念。还描述了通过向使用3G和其它类型单播信道的现有电视节目提供增强内容而实现服务的机制。虽然单播信道提供的增强内容信息描述为与电视节目相关联，但将理解，本发明也适用于供应其它类型的媒体。例如，主要内容可以是使用广播/多播信道发送到移动用户的音乐节目或视频剪辑，而不是电视节目。主要内容的增强部分通过单播信道发送。
上述说明只是示出本发明的原理。因此，将理解，本领域的技术人员将能够设计各种设置，这些设置虽然未在本文中明确描述或示出，但将包含本发明的原理并且包括在其精神和范围内。此外，所述所有示例和条件语言(conditional language)原则上明显只是出于指导性目的，帮助阅读者理解发明者为促进技术领域而提供的本发明的原理和概念，并且要视为不限于此类明确所述的示例和条件。另外，本文中叙述本发明的原理、方面和实施例的所有声明及其特定示例旨在涵盖其结构和功能等效物。另外，此类等效物要包括当前已知等效物和将来形成的等效物，即，开发的执行相同功能的任何元件，而无论结构如何。
在本文的权利要求中，表述为用于执行指定功能的部件的任何单元旨在涵盖执行该功能的任何方式，例如包括a)执行该功能的电路单元的组合或b)任何形式的软件，因此包括固件、微代码或诸如此类，组合有用于执行该软件以执行功能的适当电路。如此类权利要求定义的本发明依据的事实是各种所述部件提供的功能以权利要求提出的方式组合和聚集在一起。申请人因此将可提供那些功能的任何部件视为与本文中所示那些部件等效。本发明原理的许多其它修改和应用将为本领域技术人员所明白，且由本文中的示教考虑在内。相应地，本发明的范围只由权利要求限制。

Claims (10)

1.一种向能够接收电视节目的移动装置提供增强内容信息的方法，所述移动装置中包括有GUI以显示所述增强内容信息和从所述移动装置传送与所述增强内容有关的信息，所述方法包括以下步骤：
向所述移动装置提供单播信道；以及
经所述单播信道传送所述增强内容，所述增强内容与在所述移动装置上观看的电视节目有关。
2.如权利要求1所述的方法，其中所述电视节目经广播信道传送到所述移动装置。
3.一种向能够接收电视节目的移动装置提供增强内容信息的方法，所述方法包括：
在所述移动装置处提供GUI以显示所述增强内容信息和从所述移动装置传送与所述增强内容有关的信息；以及
接收与所述移动装置上观看的所述电视节目有关的所述增强内容；
其中所述增强内容信息经单播信道提供到所述移动装置，并且所述电视节目通过广播信道提供。
4.如权利要求3所述的方法，其中所述广播信道由CDMA EvDO或媒体FLO网络提供，并且所述单播信道是EvDO单播信道。
5.如权利要求3所述的方法，其中所述广播信道由GPRS/UMTS或DVB-H网络提供，并且所述单播信道是GPRS/UMTS单播信道。
6.如权利要求3所述的方法，其中所述增强内容包括与可传输到所述移动装置的电视节目有关的节目安排信息。
7.如权利要求3所述的方法，所述增强内容包括所述电视节目的背景信息。
8.如权利要求3所述的方法，其中所述增强内容包括演员表成员信息。
9.如权利要求3所述的方法，其中所述增强内容信息包括与所述电视节目有关的投票能力。
10.一种移动设备，所述移动设备用于提供与其上接收的电视节目有关的增强内容信息，所述设备包括：
处理器，所述处理器用于提供处理在接收的所述电视节目的能力；以及
在所述移动设备处的GUI，所述GUI用于显示所述增强内容信息和允许从所述移动设备传送与所述增强内容有关的信息；
其中所述增强内容信息经单播信道提供到所述移动设备，并且所述电视节目通过广播信道提供。
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