WO2006066450A1 - Procede d'adaptation destine a la transmission d'un message multimedia entre des terminaux - Google Patents

Procede d'adaptation destine a la transmission d'un message multimedia entre des terminaux Download PDF

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Publication number
WO2006066450A1
WO2006066450A1 PCT/CN2004/001487 CN2004001487W WO2006066450A1 WO 2006066450 A1 WO2006066450 A1 WO 2006066450A1 CN 2004001487 W CN2004001487 W CN 2004001487W WO 2006066450 A1 WO2006066450 A1 WO 2006066450A1
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WO
WIPO (PCT)
Prior art keywords
mms
message
receiving terminal
terminal
service center
Prior art date
Application number
PCT/CN2004/001487
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English (en)
French (fr)
Inventor
Chaoliang Wu
Yuwen Ye
Zaijun Zhang
Jingxiang Wang
Zhichun Mu
Original Assignee
Zte Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zte Corporation filed Critical Zte Corporation
Priority to PCT/CN2004/001487 priority Critical patent/WO2006066450A1/zh
Priority to EP04802500.1A priority patent/EP1835768B1/en
Priority to DK04802500.1T priority patent/DK1835768T3/da
Priority to CN2004800441846A priority patent/CN101040541B/zh
Publication of WO2006066450A1 publication Critical patent/WO2006066450A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/08Network architectures or network communication protocols for network security for authentication of entities
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L51/00User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
    • H04L51/06Message adaptation to terminal or network requirements
    • H04L51/066Format adaptation, e.g. format conversion or compression
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L51/00User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
    • H04L51/58Message adaptation for wireless communication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W12/00Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06Authentication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/18Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/12Messaging; Mailboxes; Announcements

Definitions

  • the present invention relates to an adaptation method for transmitting multimedia messages between terminals, in particular, in a mobile communication system, a multimedia message service (MMS, Mul t imedia Message Service) is transmitted between terminals of different specifications.
  • MMS multimedia message service
  • Adaptation method Background technique
  • the multimedia message ( ⁇ S) industry standard was developed so that it can be designed to run on the upper layer of the WAP protocol. It is not limited to the transmission format. It supports both circuit-switched data (circui t-swi tched data) and general packet. GPRS (general packet radio service) format.
  • the MMS service (also known as MMS service) is a fast-growing mobile communication service today.
  • MMS service is a fast-growing mobile communication service today.
  • many manufacturers have designed and produced a large number of different types of mobile terminal-MMS mobile phones with Li S (MMS) transceiver function.
  • MMS Li S
  • This kind of mobile terminal can realize MMS transmission between each other by carrying the communication network. It is also possible to implement the wake-up communication with the fixed terminal and the SP server.
  • the basic protocols specified in the MMS Conformance protocol include still images (JPEG, WBMP, GIF); in terms of sound and audio, only limited types such as AMR, IMY, etc.
  • the media types of user terminals are various, even for the terminals of the same brand, the media types of MMS supported by different models and different models are very different. For most terminals, media types that are not recognized in the MMS will not affect the identification of other media types. However, a few well-designed MMS terminals, which cannot support media types, can even affect the recognition of normal media. In this way, the user's satisfaction with use is greatly reduced.
  • the compatibility problems between different MMS terminals are mainly manifested in the following aspects.
  • the media formats supported by different MMS terminals are not the same.
  • Different MMS terminals support multimedia MMS of different sizes.
  • the MMS terminal will discard the MMS that exceeds its receiving limit size and affect the reception of MMS.
  • the screen size of different ⁇ S terminals can support the maximum number of color digits, so display problems may occur.
  • different audio playback modes may also cause the audio files in the received MMS to be played smoothly or the original melody to be reproduced. , tone, etc.
  • Some MMS terminals are not packaged according to the MMS Conformance protocol when encapsulating MMS content, which causes some exceptions to the receiving side of the terminal. Summary of the invention
  • the object of the present invention is to provide an adaptation method for transmitting multimedia messages between terminals according to the compatibility problems existing between the different fixed S terminals, and the adaptation is based on fully understanding the WAP protocol.
  • the MS terminal handles the similarities and differences between the MMS protocols, proposes a unified format, and uniformly encapsulates the MMS format of the terminal to the terminal, the Ema il and the external server to the terminal, thereby eliminating the compatibility problem between the ⁇ S terminals.
  • the present invention employs an adaptation method for transferring multimedia messages between terminals, which includes the following steps:
  • Step 1 After receiving the MMS from the MMS sending terminal, the MMS service center first performs authentication confirmation on the MMS sending terminal. When the authentication result is correct, the MMS service center parses the content of the MMS message. And separately storing the MMS control information and the MMS content information obtained after parsing; when the authentication result is an error, directly jump to step 5;
  • Step 2 The MMS service center sends an announcement message to the receiving terminal. Alternatively, before the notification message is sent, the receiving terminal performs an authentication confirmation, and when the authentication result is correct, the notification message is sent. When the authentication result is an error, jump directly to step 5;
  • Step 3 After receiving the notification message, the receiving terminal sends an acquisition request message to the MMS service center; the MMS service center extracts the MMS control information and the MMS content information, and according to the specifications of the receiving terminal and Encapsulating format, performing corresponding re-encapsulation on the MMS message;
  • Step 4 The MMS service center encodes the re-encapsulated multimedia message, and then sends the message to the MMS. T N2004/001487 the receiving terminal;
  • the present invention solves various media formats supported by different wake-up S terminals through unified re-encapsulation, such as display difference, MMS content discarding, melody, timbre distortion, etc.
  • the compatibility problem makes the ⁇ S transparently transmitted between the terminals without being affected by the display.
  • the invention can terminate the MMS service by using an authentication confirmation mode for the illegal terminal user.
  • FIG. 1 is a schematic diagram showing the structure of a communication system according to the present invention.
  • FIG. 1 is a structural diagram of a communication system according to the present invention.
  • FIG. 2 MMSC 1 (MMS service center) includes a ⁇ S relay 11 and a ⁇ S server 12, wherein the MMS relay 11 includes a MN S bearer module.
  • the S server 12 include business processing modules that are responsible for processing all business processes that should be S.
  • MMSC1 is independent of the bearer network and can be applied to the current GPRS network or to the future 3G network.
  • the capsule SC1 further includes a storage device 13 and a database 14. All the S-submit messages submitted by the user are saved on the storage device 13, and the database 14 stores information about all the S-opening users.
  • the implementation process of the present invention is that when the MMS terminal edits a multimedia message through the capsule S editor and fills in the recipient address, it starts to send the multimedia message.
  • MMS is redirected to a multimedia message center through the network-wide unified redirector and WAP gateway.
  • MMS encapsulates the MMS control header and MM body according to the WAP, WSP protocol and WAP 209 protocol, and the MMS center decapsulates it according to the protocol.
  • the MMSC encodes the notification message to the receiving terminal and sends it to the receiving terminal, and the receiving terminal parses the notification, and then acquires the message.
  • the multimedia message center sends the relevant code stream to the receiving terminal.
  • Step 1 After receiving the submit request of the MMS sending terminal, the MMS service center performs operations including authentication confirmation and content parsing processing.
  • the specific process is as follows:
  • Step la the bearer module of the MMS service center receives the submission request of the MMS sending terminal, and forwards the request to the service processing module of the MMS service center;
  • Step lb the service processing module sends an authentication request to the MMS sending terminal to the database server service processing module of the MMS service center, and when the authentication response sent by the database server service processing module is obtained, the authentication response is correct.
  • Step lc is performed; when the authentication response is an error, step Id is performed;
  • Step lc The service processing module performs content parsing processing on the MMS, that is, saves the MMS control information obtained after parsing to a database of the MMS service center; and saves the MMS content information obtained after parsing to the In the storage device of the MMS service center; then step 2 is performed; step ld, the service processing module sends a response error message to the MMS sending terminal through the bearer module and directly jumps to the step 5;
  • Step 2 The MMS service center performs the operation of sending the notification message to the receiving terminal, and the specific process is as follows: Step 2a: The service processing module sends an announcement request to the database server service processing module;
  • Step 2b After receiving the notification request response returned by the database server service processing module, the service processing module sends an announcement message to the receiving terminal.
  • the database server service processing module For the case where only the receiving terminal that has applied for the MMS service in advance can obtain the MMS service, before the notification request returned by the database server service processing module, the database server service processing module must also perform authentication processing on the receiving terminal, the process is:
  • Step 2al the database server service processing module extracts related user information of the receiving terminal
  • Step 2a2 Compare the related user information with the user information saved in the database server, and send an authentication response
  • Step 2a3 when the authentication response is correct, issue the notification message; when the authentication is back When it is an error, send a response error message to the wrong receiving terminal and jump directly to step 5.
  • step 2a3 since the MMS may not be directed to a receiving terminal, such as a separate transmitting terminal or a group service operation of the SP service provider, some terminals may not have the right to enjoy the MMS service, therefore, the MMS service center You can send a response error message to the business processing module for the right to enjoy the MMS service. After issuing the announcement message, the MMS service center continues to perform step 3.
  • a receiving terminal such as a separate transmitting terminal or a group service operation of the SP service provider
  • some terminals may not have the right to enjoy the MMS service, therefore, the MMS service center You can send a response error message to the business processing module for the right to enjoy the MMS service. After issuing the announcement message, the MMS service center continues to perform step 3.
  • Step 3 The receiving terminal sends an acquisition request message to the MMS service center; the MMS service center extracts the MMS control information and the MMS content information, and re-encapsulates the MMS according to the specifications and the encapsulation format of the receiving terminal.
  • the specific steps performed in the process are:
  • Step 3a After receiving the notification message, the receiving terminal sends an acquisition request to the multimedia message service center, where the obtaining request includes the specification and the package format information of the receiving terminal.
  • Step 3b The bearer module of the MMS service center forwards the request to the service module of the MMS service center;
  • Step 3c The service module sends a request for extracting information to the database server service processing module of the MMS service center. After obtaining the response request response returned by the database server service processing module, the service module extracts the MMS control information and the MMS content information, according to the The specification and the encapsulation format of the receiving terminal are described, and the MMS is repackaged accordingly. After the MMS is repackaged, the MMS service center needs to perform step 4 and send a multimedia message.
  • Step 4 The MMS service center encodes the re-encapsulated MMS message and sends it to the receiving terminal.
  • the re-encapsulation mode and the delivery process are as follows:
  • the re-encapsulated MMS is encoded according to the WSP protocol
  • the MMS coded according to the WSP protocol is sent to the terminal user through the WAP gateway.
  • step 5 complete the transparent transmission of a multimedia message between different ⁇ S terminals, and end.
  • the present invention can support the conversion between most media types, so that the terminal can be correctly displayed and parsed regardless of the destination terminal, thereby improving the user experience.
  • the specific adaptation content and the effect achieved are as follows.
  • the size of the wakeup S sent by the sender exceeds the maximum read S capacity that the receiver can receive, it will give a problem of receiving the UI.
  • most ⁇ S terminals will refuse to receive more than their own receiving capabilities. Sa S.
  • a small number of incompletely designed terminals can cause crashes and restarts in such cases.
  • the invention can reduce the content (compression or reduction) of the large ⁇ s, thereby improving the user's feeling of use.
  • the present invention proposes a unified encapsulation format, so that whether the terminal sends to the terminal or wakes up the S service content provider to the terminal, the package is uniformly converted.
  • the conversion mainly has the following aspects:
  • the current discussion S is generally of the application/vnd.wap.multipart.related and application/vnd.wap.multipart.mnixed types.
  • the present invention is for the user to submit the S, when sent to the destination terminal, '. ⁇ unified conversion into application/vnd.wap.multipart.related and application/vnd.wap.multipart.mixed two types, avoiding between the terminals Compatibility issues due to design differences.
  • each terminal is also different.
  • the Content-Type is application/vnd.wap.multipart.related.
  • ⁇ S specific content is MIME encapsulation form:
  • Each segment is generally composed of three elements: FileName, Content-ID and Content-Location.
  • Different terminals have different design, which causes some terminals to have the above three elements, and some terminals do not have the above three elements, which brings compatibility problems between terminals.
  • the present invention applies a unified encapsulation to the terminal to the terminal, so that the segment header of each segment completely includes the above-mentioned three elements, thereby avoiding compatibility problems between terminals due to design differences.
  • Luo S SMIL is an important part of the decision of S.
  • the versions of SMIL supported by the S terminals are quite different.
  • the current SMIL version is 2.0, but the SMIL version supported by the terminal is quite different. Some do not support some SMIL elements, some are sensitive to the location of SMIL, and some terminals cannot solve this SMIL at all.
  • the current ⁇ S terminal support for text character sets is also different. Most of them only support one or two character sets, and some new terminals will support multiple character sets.
  • the text character set is adapted to ensure that the read S terminal does not have garbled characters due to text compatibility.
  • the length of the header that the terminal can support although ⁇ S Conformance has clearly defined this, the actual implementation of each terminal is very different. Moreover, if the character set used by the title is not supported, there may even be cases where the receiving terminal does not receive the announcement.
  • the UTF-8 is uniformly coded for the title, and the length is also flexibly adapted according to the terminal capability, thereby ensuring that the titles between the terminals are normal.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Hardware Design (AREA)
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  • General Engineering & Computer Science (AREA)
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Description

多媒体消息在终端之间传递的适配方法 技术领域
本发明涉及一种多媒体消息在终端之间传递的适配方法, 尤其是一种在移 动通讯系统中, 多媒体消息业务(MMS, Mul t imedia Message Service)在多种 不同规格的终端之间传递的适配方法。 背景技术
多媒体消息 (匪 S )工业标准的制定, 使其被设计成可以在 WAP协议的上 层运行,它不局限于传输格式,既支持电路交换数据( circui t-swi tched data ) 格式, 也支持通用分组无线服务 GPRS ( general packet radio service )格 式。
MMS业务(也称为彩信业务)是当今一项快速发展的移动通讯业务。 目前, 许多生产商纷纷设计生产了大量的、 各种不同款式的具有丽 S (彩信)收发功 能的移动终端 -彩信手机, 这种移动终端通过承载通讯网络可以实现相互之间 的 MMS传递, 同时也可以实现与固定终端、 SP服务器之间的醒 S互通。
然而, 由于上述移动终端- 信手机(或称之为 MMS终端) 出自不同的生 产厂商, 其对 MMS的封装处理不尽相同, 因此带来了一些兼容性方面的问题, 加之目前现有的彩信中心对各款终端 (包括固定终端)之间的这种差异性没 有做处理, 导致有的匪 S终端不能正常获取其它型号應 S终端给其发送的彩 信。
自从 MMS业务发展以来, 各款固 S终端所支持的格式除了基本格式以外, 还有很多其它类型的媒体格式。 在 MMS Conformance协议中规定的基本协议 包括静态图像(JPEG, WBMP, GIF) ; 声音和音频方面, 仅仅只有 AMR, IMY等有 限的类型。 从实际的应用来看, 用户终端的媒体类型是多种多样的, 即使是 同一个品牌的终端, 其不同款式, 不同型号之间所支持的 MMS 的媒体类型都 有很大的差别。 对于多数终端来说, MMS中不能识别的媒体类型, 不会影响其 它媒体类型的识别。 但少数设计不周全的 MMS终端, 其不能支持的媒体类型 甚至可以影响正常媒体的识别。 这样一来, 就大大降低了用户的使用满意度。 不同的 MMS终端之间所存在的兼容性问题主要表现为以下几个方面。 不同的 MMS终端支持的媒体格式不尽相同。
不同的 MMS终端支持不同大小的多媒体彩信。 MMS终端对于超越其接收极 限大小的 MMS会做丢弃处理, 影响彩信的接收。
不同的匪 S终端的屏幕大小, 能够支持的最大颜色位数往往, 因此会出现 显示问题, 同样不同音频播放方式也可能造成不能顺利播放接收到的 MMS 中 的音频文件或再现其原有的旋律、 音色等。
某些 MMS终端在封装 MMS内容时, 不是按照 MMS Conformance协议进行封 装, 这样在显示时导致对接收方匪 S终端容易出现一些异常。 发明内容
本发明的目的在于针对上述不同的 固 S 终端之间所存在的兼容性问题提 供一种多媒体消息在终端之间传递的适配方法, 该适配在充分理解 WAP协议 的基础上, 针对各款 MS终端在处理 MMS协议上的异同, 提出统一的格式, 对终端到终端, Ema i l和外部服务器到终端的 MMS格式进行统一封装, 从而消 除匪 S终端之间的兼容性问题。
为实现上述目的, 本发明采用一种多媒体消息在终端之间传递的适配方 法, 其包括以下步骤:
步骤 1、彩信服务中心收到来自彩信发送终端的彩信后, 对所述彩信发送 终端首先进行鉴权确认, 当鉴权结果为正确时, 所述彩信服务中心对所述彩 信的内容进行解析处理, 并分别保存解析后所获得的彩信控制信息和彩信内 容信息; 当鉴权结果为错误时, 直接跳转到步骤 5;
步骤 2、 所述彩信服务中心向接收终端发出通告消息; 或者, 在发出所述 通告消息之前, 对所述接收终端进行鉴权确认, 在鉴权结果为正确时, 发出 所述通告消息, 当鉴权结果为错误时, 直接跳转到步骤 5;
步骤 3、所述接收终端收到所述通告消息后向所述彩信服务中心发出获取 请求消息; 所述彩信服务中心提取所述彩信控制信息和彩信内容信息, 并根 据所述接收终端的规格及封装格式, 对所述彩信进行相应的重新封装;
步骤 4、 所述彩信服务中心对上述重新封装后的彩信进行编码后, 下发给 T N2004/001487 所述接收终端;
步骤 5、 结束。
由上述技术方案可以看出,本发明通过统一的重新封装,解决了各种不同 款醒 S 终端因各自支持的媒体格式不尽相同, 造成了诸如显示差异、 彩信内 容丢弃、 旋律、 音色失真等兼容性问题, 使得匪 S在各款终端之间可以透明 传输, 不受显示影响。 本发明在进行彩信内容统一适配过程中, 对于非法终 端用户, 可以采用鉴权确认方式, 终止彩信服务。
另外, 由于采用统一适配, 重新封装, 所以在设计醒 SC时不需要针对各 款匪 S终端做处理, 大大简化了觀 SC编解码的设计。
以下, 通过具体实施方式并结合附图对本发明做进一步的详细说明。 附图说明
图 1所示为本发明所涉及的通讯系统构成示意图。
图 1所示为本发明提供一个较佳实施例的流程图。 具体实施方式
图 1所示为本发明所涉及的通讯系统构成图, 图^ , MMSC 1 (彩信服务 中心) 包括了匪 S中继 11和匪 S服务器 12, 其中, MMS中继 11包括了丽 S 承载模块, 讓 S服务器 12包括了业务处理模块, 它们负责处理應 S的所有业 务流程。
从图中可以看到, MMSC1独立于承载网络, 可以适用于目前 GPRS网络, 也可以使用在未来的 3G网络。 另外, 囊 SC1还包括存储设备 13和数据库 14。 存储设备 13上保存了用户提交的所有隨 S消息, 数据库 14保存了所有護 S 开户用户的相关信息。
本发明的实施过程为, 当彩信终端通过囊 S编辑器编辑好一条彩信并且 填写好收件人地址后, 开始发送彩信。 通过全网统一 重定向器和 WAP网关, 彩信被重定向到某一彩信中心。 彩信按照 WAP、 WSP协议和 WAP 209协议封 装了 MMS 控制头和 MM体, 彩信中心按照协议对其进行解封。 然后 MMSC向接 收终端编码通告消息并下发给接收终端, 接收终端解析此通告, 然后来获取。 彩信中心将相关码流下发给接收终端。
本发明所提供一个较佳的适配过程实施例的流程如图 1 所示, 其包括以 下步骤:
步骤 1、 彩信服务中心接收到彩信发送终端的提交请求后, 进行包括鉴权 确认、 内容解析处理在内的操作, 其具体过程如下:
步骤 la、 所述彩信服务中心的承载模块接收所述彩信发送终端的提交请 求, 将该请求转送至所述彩信服务中心的业务处理模块;
步骤 lb、 所述业务处理模块向所述彩信服务中心的数据库服务器业务处 理模块发出针对所述彩信发送终端的鉴权请求, 当获得所述数据库服务器业 务处理模块发回的鉴权回应为正确时, 执行步骤 lc;当所述鉴权回应为错误 时, 执行步骤 Id;
步骤 lc、 所述业务处理模块对所述彩信进行内容解析处理, 即, 将解析 后所获得的彩信控制信息保存到所述彩信服务中心的数据库; 将解析后所获 得的彩信内容信息保存到所述彩信服务中心的存储设备中; 然后执行步骤 2; 步骤 ld、 所述业务处理模块通过所述承载模块向所述彩信发送终端发送 提交回应错误信息并直接跳转至所述步骤 5;
步骤 2:彩信服务中心执行向接收终端发出通告消息的搡作,具体过程为: 步骤 2a、 所述业务处理模块向所述数据库服务器业务处理模块发出通告 请求;
步骤 2b、 所述业务处理模块在收到所述数据库服务器业务处理模块返回 的通告请求回应后, 向所述接收终端发出通告消息。
针对只有预先申请了彩信服务的接收终端才能够获得彩信服务的情况, 在数据库服务器业务处理模块返回的通告请求之前, 数据库服务器业务处理 模块还必须对接收终端进行鉴权处理, 其过程为:
步骤 2al、所述数据库服务器业务处理模块提取所述接收终端的相关用户 信息;
步骤 2a2、将所述相关用户信息与所述数据库服务器中所保存的用户信息 进行比较鉴权并将发出鉴权回应;
步骤 2a3、 当所述鉴权回应为正确时, 发出所述通告消息;当所述鉴权回 应为错误时, 针对错误的接收终端发送回应错误信息后并直接跳转至所述步 骤 5。
在上述步骤 2a3 中, 由于彩信在发送中可能针对的不是一个接收终端, 如单独发送终端的或者 SP服务商的群发操作, 有些接, ^终端有可能无权享受 彩信服务, 因此, 彩信服务中心可以针对无权享受彩信服务, 向业务处理模 块发送回应错误信息。在发出所述通告消息后,彩信服务中心继续执行步骤 3。
步驟 3、接收终端向彩信服务中心发出获取请求消息; 彩信服务中心提取 彩信控制信息和彩信内容信息, 并根据所述接收终端的规格及封装格式, 对 所述彩信进行相应的重新封装, 这一过程中所执行的具体步驟为:
步骤 3a、 接收终端在获得通告消息后向彩信服务中心发出获取请求, 该 获取请求中包括接收终端的规格及封装格式信息;
步骤 3b、 彩信服务中心的承载模块将获取请求转发给彩信服务中心的业 务模块;
步骤 3c、 业务模块向彩信服务中心的数据库服务器业务处理模块发出提 取信息请求, 在获得所述数据库服务器业务处理模块返回的提取信息请求回 应后, 业务模块提取彩信控制信息和彩信内容信息, 根据所述接收终端的规 格及封装格式, 对所述彩信进行相应的重新封装。 彩信重新封装完毕后, 彩 信服务中心需要执 ^"步骤 4 , 下发彩信。
步骤 4、 彩信服务中心对上述重新封装后的彩信进行编码后, 下发给接收 终端; 重新封装的方式与下发的过程为:
4a、 对重新封装后的彩信按照 WSP协议进行编码;
4b、 将按照 WSP协议进行编码的彩信通过 WAP网关下发给终端用户。
最后, 步骤 5、 完成一次彩信在不同匪 S终端之间的透明传输, 结束。 本发明在进行内容适配服务中, 可以支持绝大多数的媒体类型之间的转 换, 做到不管什么目的终端, 都可以正确显示和解析, 从而提高了用户的使 用感受。 具体适配内容及达到的效果如下所述。
媒体大小的转换:
当发送方发送的醒 S的大小超过了接收方能够接收的最大讀 S容量时, 就 会给接收匪 S的来问题。 目前大多数匪 S终端会拒绝接收超过自己接收能力 的薩 s。但少数设计不完备的终端在此种情况下会造成死机, 重启等现象的发 生。 本发明可以栽减过大匪 s的内容(压缩或者裁减), 从而提高了用户的使 用感受。
媒体内容的统一封装:
目前, 对于 MS终端的发送内容体的封装, 3GPP或者 0MA都没有一个统 一的封装协议。 这样的状况使得终端之间的互相发送和接收續 S带来了障碍。 本发明在 MS Conformance 的基础上, 提出了一个统一的封装格式, 使得无 论是终端发送给终端还是醒 S服务内容提供商发送给终端, 都进行封装的统 一转换。 转换主要有如下几个方面:
对于 隱 S 控制头 中 的 Content-Type , 目 前的 議 S —般为 application/vnd.wap.multipart.related和 application/vnd.wap.multipart.mnixed两种 类型。 有少数终端在此填写的不是上面两种类型, 而大多数终端仅仅支持这 两种类型, 这样就使得终端之间的显示带了不兼容性。 本发明对于用户提交 的 謹 S , 在 下 发 给 目 的 终 端 时 , '.·统 一 转 换 成 为 application/vnd.wap.multipart.related和 application/vnd.wap.multipart.mixed两种 类型, 避免了终端之间因为设计差异而带来的兼容性问题。
对于匪 S具体内容的封装, 各款终端也是各不相同。 对于 Content- Type 为 application/vnd.wap.multipart.related的情形。匪 S具体内容为 MIME封装形式: 每一分段一般由 FileName, Content-ID和 Content-Location三元素组成。 而不 同终端由于设计的不同, 导致有些终端具有上述三个元素, 而有些终端则不 具有上述三个元素, 这样就带来了终端之间的兼容性问题。 本发明对于终端 到终端, 应用到终端进行统一的封装, 使得每一分段的段头完整的包括了上 面提到的三元素, 避免了终端之间因为设计差异而带来的兼容性问题。
对于應 S SMIL的处理, 羅 S SMIL是丽 S 中决定顧 S显现的一个重要部 分。 目前各款應 S终端所支持的 SMIL的版本有很大的差异。 目前的 SMIL版 本为 2. 0, 然而终端所支持的 SMIL版本是有较大差异的。有的对某些 SMIL元 素不支持, 有的对 SMIL的位置敏感, 还有的终端根本就无法解折这种 SMIL。 本发明采用的方法: 对于各款應 S终端进行 SMIL的适配, 保证匪 S的显现不 受 SMIL封装的影响。 对于匪 S中文本的处理, 目前的匪 S终端对于文本字符集的支持也是不 尽相同。 绝大多数仅仅支持一到两种字符集, 而有的新款终端会支持多种字 符集, 这样就会出现 A终端发送應 S到 B终端, B终端会出现文本乱码或者根 本无法显示的问题。 本发明对于各款囊 S终端, 在下发给目标终端时, 会进 行文本字符集的适配, 保证讀 S终端不出现由于文本兼容性带来的乱码问题。
对于终端标题长度的处理, 对于终端所能支持的标题长度, 虽然 匪 S Conformance对此有明确规定, 但是各款终端实际实现是有很大不同的。 而且 标题所使用的字符集, 如果接收终端不支持, 甚至会出现接收终端收取不到 通告的情况。 本发明对于标题, 统一采用 UTF- 8 进行编码, 对于长度, 也会 根据终端能力进行灵活适配, 从而保证了各款终端之间的标题正常。

Claims

权 利 要求
1、 一种多媒体消息在终端之间传递的适配方法, 其特征在于: 包括以下 步骤:
步骤 1、 彩信服务中心收到来自彩信发送终端的彩信后, 对所述彩信发送 终端首先进行鉴权确认, 当鉴权结果为正确时,所述彩信服务中心对所述彩信 的内容进行解析处理,并分别保存解析后所获得的彩信控制信息和彩信内容信 息; 当鉴权结果为错误时, 直接跳转到步骤 5;
步骤 2、 所述彩信服务中心向接收终端发出通告消息; 或者, 在发出所述 通告消息之前,所述彩信服务中心对所述接收终端进行鉴权确认,在鉴权结果 为正确时, 发出所述通告消息, 当鉴权结果为错误时, 直接跳转到步骤 5 ; 步骤 3、 所述接收终端收到所述通告消息后向所述彩信服务中心发出获取 请求消息; 所述彩信服务中心提取所述彩信控制信息和彩信内容信息, 并根据 所述接收终端的规格及封装格式, 对所述彩信进行相应的重新封装;
步骤 4、 所述彩信服务中心对上述重新封装后的彩信进行编码后, 下发给 所述接收终端;
步骤 5、 结束。
2、 居权利要求 1所述的多媒体消息在终端之间传递的适配方法, 其特 征在于: 所述的步骤 1中鉴权确认过程包括以下具体步骤:
步骤 la、 所述彩信服务中心的承载模块接收所述彩信发送终端的提交请 求, 将该请求转送至所述彩信服务中心的业务处理模块;
步骤 lb、 所述业务处理模块向所述彩信服务中心的数据库服务器业务处 理模块发出针对所述彩信发送终端的鉴权请求,当获得所述数据库服务器业务 处理模块发回的鉴权回应为正确时, 执行步骤 lc;当所述鉴权回应为错误时, 执行步骤 Id;
步骤 lc、 所述业务处理模块对所述彩信进行内容解析, 将存解析后所获 得的彩信控制信息保存到所述彩信服务中心的数据库;将存解析后所获得的彩 信内容信息保存到所述彩信服务中心的存储设备中;
步骤 ld、 所述业务处理模块通过所述承载模块向所述彩信发送终端发送 提交回应错误信息并直接跳转至所述步骤 5。
3、 根据权利要求 1所述的多媒体消息在终端之间传递的适配方法, 其特 征在于: 所述的步骤 2中发出所述通告消息的具体过程为:
步骤 2a、 所迷业务处理模块向所述数据库服务器业务处理模块发出通告 请求;
步骤 2b、 所迷业务处理模块在收到所述数据库服务器业务处理模块返回 的通告请求回应后, 向所述接收终端发出通告消息。
4、 才艮据权利要求 1所述的多媒体消息在终端之间传递的适配方法, 其特 征在于: 所述的步骤 2中, 对所述接收终端进行鉴权确认的处理过程具体为: 步骤 2a l、 所述数据库服务器业务处理模块提取所述接收终端的相关用户 信息;
步骤 2a2、将所述相关用户信息与所述数据库服务器中所保存的用户信息 进行比较鉴权并将发出鉴权回应;
步骤 2a 3、 当所述鉴权回应为正确时,发出所述通告消息;当所述鉴权回应 为错误时,针对错误的接收终端发送回应错误信息后并直接跳转至所述步骤 5。
5、 根据权利要求 1所述的多媒体消息在终端之间传递的适配方法, 其特 征在于: 所述的步骤 3具体为:
步骤 3a、 所迷接收终端在获得所述通告消息后向所述彩信服务中心发出 获取请求, 该获取请求中包括所述接收终端的规格及封装格式信息;
步骤 3b、 所迷彩信服务中心的承载模块将该获取请求转发给所述彩信服 务中心的业务模块;
步骤 3c、 所迷业务模块向所述彩信服务中心的数据库服务器业务处理模 块发出提取信息请求,在获得所述数据库服务器业务处理模块返回的提取信息 请求回应后, 所述业务模块提取所述彩信控制信息和彩信内容信息,根据所述 接收终端的规格及封装格式, 对所述彩信进行相应的重新封装。
6、 根据权利要求 1所述的多媒体消息在终端之间传递的适配方法, 其特 征在于: 所述的步骤 4包括以下具体步骤:
步骤 4a、 对所述重新封装后的彩信按照 WSP协议进行编码;
步骤 4b、 将所述按照 WSP协议进行编码的彩信通过 WAP网关下发给终端 用户。
PCT/CN2004/001487 2004-12-21 2004-12-21 Procede d'adaptation destine a la transmission d'un message multimedia entre des terminaux WO2006066450A1 (fr)

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