CN1288930C - PDX-WAP content converting method and system - Google Patents
PDX-WAP content converting method and system Download PDFInfo
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- CN1288930C CN1288930C CN 200410018550 CN200410018550A CN1288930C CN 1288930 C CN1288930 C CN 1288930C CN 200410018550 CN200410018550 CN 200410018550 CN 200410018550 A CN200410018550 A CN 200410018550A CN 1288930 C CN1288930 C CN 1288930C
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Abstract
The present invention relates to a method for accessing the content of PDX via a WAP terminal. Firstly, a request message is sent by the WAP terminal through a WAP gateway to a PDX gateway; the message is converted by the PDX gateway from a format which can be identified by the WAP terminal to a format (HTML or xHTML) which can be identified by PDX ICP, and the converted message is sent to the PDX ICP. The request message sent from the PDX gateway is received by the PDX ICP, and the corresponding content in the format of the PDX is sent back to the PDX gateway; the content in the format of the PDX is converted into the content in the format which can be identified by the WAP terminal and is returned to the WAP gateway from which the content is received by the WAP terminal.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to the method and system that the WAP mobile phone terminal can be visited original C-Mode business tine (PDX form).
Background technology
Along with the development of mechanics of communication, 3-G (Generation Three mobile communication system) (3G) is more and more used.It can provide two-forty to support multiple business, and can support from the speech to the grouped data particularly for the internet, can provide the bandwidth of necessity to multimedia service as required.WAP (Wireless Access Protocol, WAP (wireless access protocol)) be to carry out the protocol stack that the browsing internet service is developed for wireless terminal specially, the technology that it is a kind of opening, widely use for industry, it is one of mainstream applications technology of 3G value-added service at present.WAP2.0 is the protocol stack of a cover from the transport layer to the application layer, and its application layer mainly is some open protocols of widely using, as xHTML, and XML, SGMLs such as HTML.So-called WAP mobile phone is meant the radio mobile communication terminal of having pre-installed WAP browser or interpreter, and it can visit the webpage and the content of WAP2.0 form.
C-Mode (mobile phone is directly surfed the Net) system is the Personal Handyphone System value-added service of UtStarcom's exploitation, and function class is similar to the WAP function of surfing the Net, and it provides the rich data value-added service for the holder of PHS mobile phone.The technology of C-Mode system is based on P-mailDeluxe (personal computer mail) technology of Japanese KDDI company, abbreviates PDX as, and we also can regard PDX as a kind of SGML.All exist the content with the realization of PDX technology that many content and service provider provide at present both at home and abroad in a large number, and the WAP mobile phone can only be visited the content of pages that the WAP2.0 agreement is supported, both are incompatible.So, be necessary to propose a kind of method, make the WAP mobile phone also can visit the PDX content, thereby make WAP mobile phone holder obtain more service, can improve the traffic carrying capacity of PDX content and service provider simultaneously.
Summary of the invention
The objective of the invention is to according to above demand, propose the method and system that a kind of WAP mobile phone can be visited the PDX content.
The objective of the invention is to realize: at first send a request message to the PDX gateway by WAP gateway by the WAP terminal by following technical method; The PDX gateway becomes the discernible form (HTML of PDX ICP with message by the discernible format conversion of WAP terminal, xHTML), and send to PDX ICP, the request message that PDX ICP acceptance is sent by the PDX gateway, the content of returning corresponding PDX form is to the PDX gateway, the PDX gateway converts the content of PDX form to the WAP terminal again and can discern the content of form and turn back to WAP gateway, and the WAP terminal is from the WAP gateway received content.
After using method of the present invention, because WAP terminal access PDX content has enlarged the scope of business of WAP terminal, thereby can protect the investment of PDX content supplier better.
Description of drawings
Fig. 1 is the system schematic of WAP mobile phone access PDX content.
Fig. 2 is the protocol stack schematic diagram of WAP mobile phone access PDX content.
Fig. 3 is the schematic flow sheet of HTTP1.0 agreement.
Fig. 4 is the schematic flow sheet of HTTP1.1 agreement.
Fig. 5 is the flow chart of WAP mobile phone access PDX content.
Fig. 6 is the configuration diagram of PDX gateway.
Fig. 7 is the socket mechanism of PDX gateway host process.
Fig. 8 is the message queue mechanism of PDX intra-gateway interface.
Fig. 9 is the sequential chart that WAP terminal access PDX gateway obtains the PDX homepage.
Figure 10 is the sequential chart of WAP terminal access PDX ICP content.
Figure 11 is the WAP terminal obtains response data from the buffer memory of PDX gateway a sequential chart.
Embodiment
WAP mobile phone of the present invention is meant the have wireless networking capabilities mobile phone terminal of (WAP), and as 3G terminal, GSM also can be a PAS terminal.
See also Fig. 1, the system of WAP mobile phone access PDX content of the present invention comprises WAP mobile phone, WAP gateway (WAP GW), PDX gateway (PDX GW) and PDX ICP (relevant affiliate, be PDX service provider), has the WAP browser on the WAP mobile phone, method by WAP gateway visit WAP content is a prior art, is not described in detail at this.The present invention inserts the PDX gateway after WAP gateway, PDX gateway (PDX GW) will be realized the conversion of content format, can make the WAP mobile phone visit relevant PDX content pellucidly by the PDX gateway.
Because the WAP application layer is SGMLs such as xHTML or HTML, the agreement of its application is HTTP1.1, itself and the agreement of PDX language application is HTIP1.0.What the present invention realized is exactly the protocol conversion of upper two layers, i.e. conversion between http protocol layer realization HTTP1.1 and HTTP1.0; In the conversion of using between the presentation layer realization SGML.The PDX gateway is equivalent to increase newly a software module in system, it has realized xHTML (HTML) and PDX, the conversion between HTML (HTML) and the PDX.Realize which kind of conversion, can in PDX gateway corresponding configuration parameters, specify.See also Fig. 2, with the example that is converted between xHTML and the PDX, we can be clear that the protocol conversion process of the WAP mobile phone access PDX page: what WAP mobile phone and WAP gateway adopted is the xHTML language format, in the PDX gateway, realize the conversion of xHTML language and PDX language, thereby make the WAP mobile phone can visit the content of PDX.
The PDX gateway is the equal of a bridge between WAP gateway and the PDX ICP, and it has been arranged, and communication can be carried out.Between WAP gateway and the PDX ICP, WAP gateway is equivalent to the HTTP client, and PDX ICP is equivalent to the http server end.In the request and answering between client and server, the PDX gateway has been done twice protocol conversion:
1. when the WAP gateway desire is transmitted to PDX ICP with the request of WAP mobile phone, the PDX gateway will be done protocol conversion to this request, and specific implementation is: bearing protocol is converted to HTTP1.0 by HTTP1.1, and the content format of request is converted to PDX by xHTML or HTML.
2. and when PDX ICP returns the corresponding page and gives WAP gateway according to request, the protocol conversion that can try again of PDX gateway, specific implementation is: bearing protocol is converted to HTTP1.1 by HTTP1.0, and the content format of the page is converted to xHTML or HTML by PDX.
See also Fig. 3 and Fig. 4, the difference of HTTP1.0 and HTTP1.1 agreement, be to set up the opportunity of a dialogue, when HTTP1.0 transmits each object (Object), all must set up a dialogue, so when HTTP/1.0 transmits a plurality of object in the webpage, on network, will send a plurality of controlling signal and constantly set up and close a plurality of dialogues.HTTP1.1 adds permanent the connection and pile line operation in client with transmission between the server.Permanent connection be set up one permanent online, all signals all transmit in a dialogue, avoid constantly interrupting being subjected to setting up dialogue the obstruction of wireless channel always.Pile line operation is that many requests and response can both concentrated on the transmission of a TCP (transmission control protocol) package.
See also Fig. 5, the entire flow of WAP mobile phone access PDX content comprises the steps:
1.WAP mobile phone sends the request of browsing the PDX page and arrives WAP iAG (access routing device), this request is for adopting the WAP2.0 agreement;
2.WAP iAG is transferred to WAP gateway with this request;
3.WAP gateway is converted to the request of http protocol with the request of WAP2.0 agreement, and should ask to transfer to the PDX gateway with xHTML (or HTML) language format;
4.PDX gateway is converted to HTTP1.0 with bearing protocol by HTTP1.1, the content format of request is converted to PDX by xHTML (or HTML);
5.PDX gateway is sent to PDX ICP with the request of PDX form, PDX ICP handles this request and returns the corresponding PDX page;
6.PDX gateway is converted to HTTP1.1 with the bearing protocol of the PDX page by HTTP1.0, the content format of the page is converted to xHTML (or HTML) by PDX;
7.PDX gateway turns back to WAP gateway with the page of content format xHTML (or HTML);
8.WAP gateway is converted to the content of WAP2.0 with the content of pages of above-mentioned HTTP 1.1 agreements, and this content of pages is sent to WAP iAG, WAP iAG is sent to the WAP mobile phone with the content of the page.
Therefrom as can be seen, do not have the PDX gateway, the WAP mobile phone can't be visited the PDX webpage.By the PDX gateway, for terminal, the WAP mobile phone can be visited the PDX content pellucidly, can obtain the experience identical with the PDX mobile phone: the C-Mode system such as UtStarcom provides De @MENU service, makes the WAP mobile phone enlarge range of application; For telecom operators and content and service provider (ICP); they can realize service management and the charging policy identical with the PDX terminal to the WAP terminal; both it can duplicate the operation mode of C-Mode system fully, had protected the investment of relevant party to greatest extent.
See also Fig. 6, the architectural framework of PDX gateway, PDX gateway are the server ends in the TCP/IP network application, as the carrier class commercial system, it adopts the mode of multi-process to handle things, and following table is the overall outline of program, as an embodiment, the PDX gateway is made up of following these processes:
| Process name | Function |
| Pgwini (managing process) | The whole application of initialization, and application managed |
| Pgwprc (host process) | Host process will convert WAP request to the PDX form, and the PDX conversion of page is become xHTML or html format |
| Pgwlog (writing the daily record process) | Preserve daily record data, so that later system debug and track problems |
| pgwfin | Stop the operation of application program |
| pgwload | The heavy duty system parameters |
| pgwstat cmd＝fin，load，stat | The operation of statistical system and performance parameter |
The management of process device produces a subprocess according to the request of WAP gateway; Handling port handles this request and produces a subprocess; Host process converts WAP request to the PDX form, and the PDX conversion of page is become xHTML or html format.
See also Fig. 7, host process pgwprc is used for the main modular of implementation agreement translation function, and what its adopted is the mode of multi-process, and promptly when a plurality of requests being arranged simultaneously and be dealt into the PDX gateway, pgwprc can derive a lot of subprocesss and handle different requests simultaneously.Each pgwprc subprocess can keep a session and communicate by letter with PDX ICP with WAP gateway handles an independent request.
See also Fig. 8, be directed to how concurrent request, adopt a plurality of subprocesss to handle, communicating by letter between subprocess and the host process is that the mode by message queue is carried out.Message queue is employed the pgwfin of program, pgwload, and the pgwstat process is used, and these processes are by mode and the pgwprc and the pgwlog process communication of message queue.
See also Fig. 9, the detailed process of WAP mobile phone access PDX gateway homepage face is:
1.WAP mobile phone sends to WAP gateway with access request, for example the URL address is
Http:// pdxgw.utstar.com, WAP gateway is transferred to the PDX gateway with this request;
2.PDX gateway is received log after the above-mentioned request, and resolves the HTTP head, obtains the URL address;
3.PDX gateway obtains the homepage face from internal memory, and this homepage face is turned back to WAP gateway;
4.PDX gateway log and end dialog promptly finish the visit of WAP gateway to the PDX gateway.
See also Figure 10, the detailed process of WAP mobile phone access PDX ICP content is:
1.WAP mobile phone sends to WAP gateway with access request, for example the URL address is
Http:// pdxgw.utstar.com/proxy/pdxicp/index.asp, WAP gateway is transferred to the PDX gateway with this request;
2.PDX gateway is received log after the above-mentioned request, and resolves the HTTP head, obtains the title of acting server;
3.PDX gateway is converted to the PDX protocol header with the wap protocol head;
4.PDX gateway sends GET and asks the ICP to PDX;
5.PDXICP receive above-mentioned request, and handle, return the page of PDX form;
6.PDX after gateway received page data from PDX ICP, disconnection was connected with PDX ICP's;
7.PDX gateway is resolved the response data of PDX form, converts the page of wap protocol head and xHTML form to;
8.PDX gateway turns back to WAP gateway with the page of above-mentioned xHTML form;
9.PDX gateway log and end session.
After for the first time obtaining certain page, this page promptly is cached in the memory of PDX gateway, sees also Figure 11, and the WAP mobile phone obtains response page from the buffer memory of PDX gateway flow process is:
1.WAP mobile phone sends to WAP gateway with access request, for example the URL address is
Http:// pdxgw.utstar.com/cache/msisdn/pdxicp/test.bmp, WAP gateway is transferred to the PDX gateway with this request;
2.PDX gateway is received log after the above-mentioned request, and resolves the HTTP head, obtains the title of server;
3.PDX gateway obtains response data from buffer memory, and back page is to WAP gateway;
4.WAP the above-mentioned data of gateway buffer memory also send to the WAP mobile phone with data;
5.PDX gateway discharges buffer area, log, end dialog.
Format conversion of the present invention comprises the conversion of message header and the conversion of message body, because PDX form and XHTML form are standard and disclosed language format, both are converted to the parameter that a kind of parameter of form is converted to another kind of form, those of ordinary skill all can be realized on the basis of understanding HTTP1.0 and HTTP1.1 agreement and PDX and HTML (xHTML) form in the industry, do not specifically describe at this, be exemplified below:
1. parameter＜SUB〉represent theme:
PDX form:＜SUB=character string 〉
XHTML form:＜title〉content＜/title 〉
The PDX form to the translative mode of XHTML form is:
<SUB＝welcome>→<title>welcome</title>
2. parameter＜IMG〉the representative of graphics file
PDX form:＜IMG=" file name " [; Number] 〉
XHTML form:＜img src=" ... " /
The PDX form to the translative mode of XHTML form is:
<IMG＝”test.bmp”；1>→<img?src＝”test.bmp”/>
After adopting the present invention, for telecom operators, especially existing Personal Handyphone System value-added service operator, the PDX gateway has not only been protected their investments in the Personal Handyphone System value-added service, has also enlarged the customer group of former Personal Handyphone System value-added service simultaneously and has protected the investment of relevant affiliate (ICP); Professional as WAP simultaneously as the Personal Handyphone System of a new generation and the early stage of development of 3G value-added service, also lacks abundant content and support, and that original a large amount of PDX content can be used as is additional, make business can be smoothly to the Personal Handyphone System and the 3G value-added service transition of a new generation.And for the terminal use, the new technology mobile phone not only can bring new experience to him, and can continue to keep the business of original custom, makes him more be ready to buy new mobile phone.
Claims (21)
1, a kind of method by WAP terminal access PDX content comprises the steps:
A) at first send a request message to the PDX gateway by WAP gateway by the WAP terminal;
B) the PDX gateway becomes the discernible form of PDX ICP with message by the discernible format conversion of WAP terminal, and sends to PDX ICP;
C) PDX ICP acceptance is by the request message that the PDX gateway sends, and the content of returning corresponding PDX form is to the PDX gateway;
D) the PDX gateway converts the content of PDX form to the WAP terminal again and can discern the content of form and turn back to WAP gateway;
E) the WAP terminal is from the WAP gateway received content.
2, the method for claim 1 is characterized in that: the discernible form of described WAP terminal is xHTML, and bearing protocol is HTTP1.1.
3, the method for claim 1 is characterized in that: the discernible form of described WAP terminal is HTML, and bearing protocol is HTTP1.1.
4, as claim 2 or 3 one of any described methods, it is characterized in that: the discernible pattern of described PDXICP is the PDX form, and bearing protocol is HTTP1.0.
5, method as claimed in claim 4 is characterized in that specifically comprising the steps:
1) the WAP mobile phone sends the request of browsing the PDX page and arrives WAP gateway;
2) WAP gateway is converted to the request of http protocol with this request, and should ask to transfer to the PDX gateway with xHTML or html language form;
3) the PDX gateway is converted to HTTP1.0 with bearing protocol by HTTP1.1, and the content format of request is converted to PDX by xHTML or HTML;
4) the PDX gateway is sent to PDX ICP with the request of PDX form, and PDX ICP handles this request and returns the corresponding PDX page;
5) the PDX gateway is converted to HTTP1.1 with the bearing protocol of the PDX page by HTTP1.0, and the content format of the page is converted to xHTML or HTML by PDX;
6) the PDX gateway turns back to WAP gateway with the page of content format xHTML or HTML;
7) WAP gateway is converted to the content of WAP2.0 with the content of pages of above-mentioned HTTP 1.1 agreements, and this content of pages is sent to WAP iAG, and WAP iAG is sent to the WAP mobile phone with the content of the page.
6, method as claimed in claim 5 is characterized in that the conversion between xHTML or HTML and the PDX comprises the conversion of message header and the conversion of message body.
7, method as claimed in claim 6, it is characterized in that: the PDX gateway adopts the mode of multi-process, promptly when a plurality of requests being arranged simultaneously and are dealt into the PDX gateway, can derive a lot of subprocesss and handle different requests simultaneously, each subprocess keeps a session and communicates by letter with PDX ICP with WAP gateway handles an independent request.
8, method as claimed in claim 7 is characterized in that: communicating by letter between subprocess and the host process is that the mode by message queue is carried out.
9, method as claimed in claim 6 is characterized in that: after the PDX gateway obtained certain page for the first time, this page promptly was cached in the memory of PDX gateway, and when the WAP mobile phone need be gone sight-seeing this page, the PDX gateway directly extracted this page from buffer memory.
10, a kind of WAP-PDX gateway, it comprises from received the device that is sent a request message by the WAP terminal by WAP gateway, message is become the device of the discernible form of PDX ICP by the discernible format conversion of WAP terminal, the message of the discernible form of PDX ICP is sent to the device of PDX ICP, receive the device that it returns the content of corresponding PDX form from PDX ICP, convert the content of PDX form to the WAP terminal and can discern the device of content of form and the device that the content that the WAP terminal can be discerned form is turned back to WAP gateway.
11, WAP-PDX gateway as claimed in claim 10 is characterized in that: the discernible form of described WAP terminal is xHTML, and bearing protocol is HTTP1.1.
12, WAP-PDX gateway as claimed in claim 10 is characterized in that: the discernible form of described WAP terminal is HTML, and bearing protocol is HTTP1.1.
13, as claim 11 or 12 one of any described WAP-PDX gateways, it is characterized in that: the discernible pattern of described PDXICP is the PDX form, and bearing protocol is HTTP1.0.
14, WAP-PDX gateway as claimed in claim 13 is characterized in that: the conversion of content format between xHTML or HTML and PDX comprises the conversion of message header and the conversion of message body in the WAP-PDX gateway.
15, WAP-PDX gateway as claimed in claim 13, it is characterized in that: also comprise the device that when a plurality of requests being arranged simultaneously and be dealt into the PDX gateway, derives a lot of subprocesss, handle different requests simultaneously, each subprocess can keep a session and communicate by letter with PDX ICP with WAP gateway handles an independent request.
16, WAP-PDX gateway as claimed in claim 13 is characterized in that: comprise and will obtain for the first time this page to be carried out behind certain page the memory of buffer memory, when the WAP mobile phone need be gone sight-seeing this page, the PDX gateway directly extracted this page from buffer memory.
17, a kind of WAP-PDX content conversion method, when WAP gateway is forwarded to the PDX gateway with the request of WAP mobile phone, bearing protocol is converted to HTTP1.0 by HTTP1.1, the content format of request is converted to PDX by xHTML or HTML, and when PDXICP returns the corresponding page to WAP gateway according to request, the protocol conversion that can try again of PDX gateway, bearing protocol is converted to HTTP1.1 by HTTP1.0, and the content format of the page is converted to xHTML or HTML by PDX.
18, method as claimed in claim 17 is characterized in that the PDX gateway comprises the conversion of message header and the conversion of message body by the conversion of content format between xHTML or HTML and PDX.
19, method as claimed in claim 17, it is characterized in that: the PDX gateway adopts the mode of multi-process, promptly when a plurality of requests being arranged simultaneously and are dealt into the PDX gateway, can derive a lot of subprocesss and handle different requests simultaneously, each subprocess keeps a session and communicates by letter with PDX ICP with WAP gateway handles an independent request.
20, method as claimed in claim 19 is characterized in that: communicating by letter between subprocess and the host process is that the mode by message queue is carried out.
21, method as claimed in claim 17 is characterized in that: after obtaining certain page for the first time, this page promptly is cached in the memory of PDX gateway, and when the WAP mobile phone need be gone sight-seeing this page, the PDX gateway directly extracted this page from buffer memory.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200410018550 CN1288930C (en) | 2004-05-21 | 2004-05-21 | PDX-WAP content converting method and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200410018550 CN1288930C (en) | 2004-05-21 | 2004-05-21 | PDX-WAP content converting method and system |
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| CN1585513A CN1585513A (en) | 2005-02-23 |
| CN1288930C true CN1288930C (en) | 2006-12-06 |
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| CN101287161B (en) * | 2008-05-14 | 2011-04-20 | 华为软件技术有限公司 | Service request forwarding method, gateway for wireless application protocol and communication system |
| US8447280B2 (en) * | 2011-07-18 | 2013-05-21 | Alcatel Lucent | Interface between 3GPP networks and 3GPP2 networks for WAP text messaging |
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