CN1201944A - Method and structure for wireless access to the internet - Google Patents

Abstract

A method for connecting wireless terminal in a wireless communication network with the internal interface of computer network, includes the steps of: (a) receiving an information search requirement from the wireless terminal; (b) transforming the information search requirement to a second format in the protocol of the computer network from a first format in the protocol of the wireless communication network; (c) transmitting the transformed information search requirement to one appointed node of the computer network; (d) receiving the response to the transformed information search requirement from the appointed node; (e) transforming the response to the first format from the second format; and (f) transmitting the transformed response to the mobile terminal.

Description

Method and structure to the Internet radio access

The present invention relates to the accessing wirelessly of data network.Specifically, the data network that the present invention relates to allow user program to pass through wireless communication link access services device designs.

" WWW " is to be designed for a system on the Internet that allows easy visit information.WWW has developed into so far and has also allowed Executive Office's reason.Message reference mechanism on the Internet is undertaken by " net (Web) page ".Webpage is " hypertext " media that provided for the user program of request access webpage (" browser ") by server program (" net demons (Web deamon) ").Usually, hypertext server is by providing one or more information of type below to respond such request of access, and these information comprise: text, graphical information, to the reference of other hypertext document or program with by an executable object code of browser.It can be both that the title of a hypertext document can be also a program name can being carried out by server program that browser uses one " URL(Uniform Resource Locator) " (URL) to come requested webpage, URL, to produce hypertext response.This program on server is called " Common Gateway (geteway) interface (CGI) " program or script (scripts).The hypertext receiving responds by browser decipher to be shown to terminal user.A kind of popular format of hypertext document is " HTML (Hypertext Markup Language) (HTML) ".

Now on the Internet, providing and can served by many Useful Informations of browser access.These information services comprise weather forecast, competitive sports, traffic, public transportation timetable, quotations on the stock market etc.Also providing can be by the transactional services of browser access.For example, a people can carry out now hotel or restaurant's reservation, the bank account of accessing certain financial business, inquiry yellow pages or send facsimile transmission.

With the rapid growth of WWW and what deposit is the growth of same unforgettable personal radio communication.Personal radio communication general using portable computer is implemented by radio modem, personal digital assistant, cell phone and pager.The service identical with information service above-mentioned can offer the user of personal radio communication.For example, the user of paging service can receive the regular update of Weather information, quotations on the stock market and competitive sports result.Along with the continuation development of personal wireless communications system, need access more to change and complicated information and the additional capabilities of transaction services.

But, in radio communication, because a large amount of users uses the relatively fixed frequency of oligodactyly to share transmission medium, and because the relatively high bit error rate in media, so bandwidth is the special resource lacking, on the contrary, the standard agreement for example, being used by popular the Internet application (HTTP (HTTP), HTML (HTML (Hypertext Markup Language)), SMTP, POP3 (post office protocol), TCP) is conducive to the simplification that bandwidth keeps.These agreements are described to " chatting (chatty) " sometimes, and this is because an independent logic task under these agreements is often divided into a plurality of business.Therefore, clearly, these agreements are unsuitable for the accessing wirelessly to the Internet.Except the difference of bandwidth, personal digital assistant and pager generally have limited processing power and storer, so that the accessing wirelessly difficulty of the Internet.

But, when when WWW and personal radio communication, the two all becomes important business tool, need for expand to the suitable mechanism of accessing wirelessly to wired access of webpage.

The present invention includes for providing from a mobile radio terminal a computer network, for example the system of the Internet or an intranet access.According to the present invention, this system comprises: a plurality of base stations that (a) distribute a coverage, and can communicate by letter with mobile radio terminal by a two-way wireless communication link in each base station; (b) be couple to a control station of this base station; (c) one or more gateways to computer network, under the control of this control station, represent that this mobile radio terminal is used as the proxy server connecing with this computer network.

In one embodiment, this mobile radio terminal is a mobile terminal in two-way personal messages net.In one embodiment, gateway comprises a protocol conversion business, and it uses the HTTP (HTTP) in this computer network the hypertext message receiving from this computer network to be sent to a mobile radio terminal of the agreement of the less bandwidth of request for utilization.In this embodiment, the message receiving from computer network comprises the information representing with HTML (Hypertext Markup Language) (HTML), therefore this protocol conversion business replaces the hypertext markup of HTML message with being called respective markers PADL, in the second HTML (Hypertext Markup Language), and utilizes various filtering techniques from this message, to extract selectively important content.Utilize PADL, make to require the minimization of band width for managing by wireless link visit information or Executive Office.In addition, the great majority of design PADL are characterized as the feature one-to-one relationship having with selected HTML, to a broad set of HTML class functionality is provided, and provide a kind of script of developing intuitively for PADL developer.

The invention provides in the situation that the access to the information service on the Internet without large communication bandwidth.The present invention is therefore: (i) avoided the many frequent costs relevant with http agreement with html language, otherwise can affect performance that bandwidth limits network, increase the weight of the burden of processing power and make the memory capabilities on mobile radio terminal nervous; (ii) as the proxy agent connecting between the private at wireless terminal and other computer network.

The present invention includes for by the wireless terminal of a wireless communication networks and a computer network, for example the method for intranet or internet interface.Method of the present invention comprises step: (a) from wireless terminal, receive an information retrieval requests; (b) this information retrieval requests, from the first format conversion being used in the agreement of this wireless communication networks, be the second form being used in the agreement of this computer network; (c) converted information retrieval requests is transmitted to a specified node in this computer network; (d) from the node of appointment, receive the response of the information retrieval requests of this conversion (with the second form); (e) this response, from the second format conversion, be the first form; (f) response of conversion is transmitted to this mobile terminal.In addition, the step that converts this response can comprise a filtration step, and this step is extracted the selected part of wanting from this response.For utilized bandwidth most effectively, that is, in order only the information of wanting to be sent to this mobile terminal, only the selected part of this response is offered to this mobile terminal, for further processing.

By considering that the detailed description and the accompanying drawings below will be better appreciated by the present invention.

Fig. 1 has to a computer network example of the two-way personal messages net of the gateway of the Internet for example.

Fig. 2 means the block scheme of some examples of application gateway in one embodiment of the invention.

Fig. 3 illustrates the basic operation of browser application.

The present invention can use a hand-held device in mobile data network.The example of this mobile data network is two-way personal messages net (for example paging), Cellular Networks, double-direction radio electrical network and PCS Personal Communications System (PCS) network.

Fig. 1 has to a computer network example of the two-way personal messages net of the gateway of the Internet for example.Should note providing the two-way personal messages net of Fig. 1 only for principle of the present invention is described.Instruction of the present invention can easily expand to uses any wireless data communication system.

As shown in Figure 1, way moving terminal 101a represents personal messages net 100 mobile user devices to 101n.Mobile terminal 101a to 101n conventionally and base station 102a to 102m two-way communication, base station 102a is to provide the local station of network service to 102m.Base station is with Regional Distribution, to cover Yi Ge messenger service district.Specifically, specify each base station, for example base station 102a is to each of 102m, the sub-fraction of serving whole messenger service district.What in Fig. 1, do not represent is to spread all over whole service area, the one or more transmitters to mobile terminal 101a to 101n broadcast.An example of so two-way personal messages net is 08/542 at the sequence number of WeijiaWang, 860, the applying date is open in the patented claim (" co-pending application ") " double-direction radio data network (TWO-WAY WIRELESSDATA NETWORK) " of the pending trial in October 13 nineteen ninety-five, this application transfers universal wireless communication company, should be also assignee of the present invention with department.At this, combine the integral body reference to the open text of this co-pending application.

Base station 102a passes through wired or wireless link to each of 102m, utilize " backhaul " network 103 to be connected to Yi Ge“ city control center (MCC) ", this MCC is for control and management message net 100 with for example, to for example other unidirectional or two-way personal messages net, informant's and so on service (quotations on the stock market service, physical culture or entertainment information service and weather service), Email and a large amount of interfaces other application.Connection in backhaul network 103 can comprise various TCP/IP connections, telephone network or wide-area wireless electrical network.As shown in Figure 1, conventionally, one is routed to a LAN (Local Area Network) 107 of network layer identification information appointment in packet through backhaul network 103 to 101m packet from base station 101a.

LAN (Local Area Network) 107 accesses backhaul network 103 by backhaul interface 104a to 104c.Provide by Ethernet 108a and be coupled to backhaul interface 104a to distributor processes device 105a and the 105b of 104c, to pass through Ethernet 108b according to the transmitting stage in packet and application layer routing iinformation, come this packet of Route Selection to application gateway 106a, 106b and the 106c of appointment, the interface of application gateway forwarding messages between the system of using different agreement as information retrieval agency or conduct.The application gateway of appointment, for example application gateway 106a, checks that the content of this packet is to determine the suitable action that will carry out.For example, a suitable action can comprise the initialization for the TCP connecting in the Internet of a host access information from the Internet.

If from specifying a bag of application gateway to exist, through a link-local (at request mobile terminal and send the link between the home base stations of this request), send it back to this request mobile terminal.Otherwise, can provide response by One-to-All Broadcast or by " waking (wake up) a up " message, to remind this mobile terminal to set up a link-local, so that the response transmitting is waited in line in retrieval now.

The present invention relates to and permitted eurypalynous application gateway.Fig. 2 means the block scheme of some examples of the application gateway in one embodiment of the present of invention.In this description, the same unit in the different figure of accompanying drawing is used identical label, so that these unit of cross reference.As shown in Figure 2, divider 105a and following gateway communication: (i) application gateway 106a, it is a unidirectional gateway to other unidirectional message system being represented by reference number 203 collectivities; (ii) application gateway 106b, it is called " information claiming (IOD) " gateway, it is to an information source, an interface of the online service of WWW, the out of Memory on the Internet or transaction services and enterprises for example, and (iii) application gateway 106c, it is the gateway to an e-mail system.

In this embodiment, each in application gateway 106a, 106b and 106c can comprise that subnet closes, and it is to specify for carrying out subsystem or the program of a specific function that subnet closes.For example, the application gateway 106b and the 106c that are illustrated in Fig. 2 comprise that PADL subnet closes 201 with storage and forwards subnet pass 202.For example, this subnet closes a CGI (Common Gateway Interface) (CGI) program that can be called when requiring by a called gateways to be realized, or a built-in function can accessing as called gateways.For example, Fig. 2 represent storage and forward subnet close 202 can by IOD application gateway 106b or e-mail applications gateway 106b, the two calls.For example, storage and forwarding subnet pass 202 can be interfaces to a post office protocol (POP3) e-mail server.This server can, by application gateway 106c by an Email User routine access, also can be accessed by a browser program by application gateway 106b.

Design IOD application gateway 106b, the proxy server of usining as the interface of message net and WWW or enterprise's " in-house network " system of being equal to.IOD application gateway 106a carries out this interface task through the following steps: (i) from mobile terminal, for example mobile terminal 101a receives IOD request to 101n; (ii) the IOD request (" PADL form ") that can represent with the application development language PADL that will be described below is transformed to standard HTTP (HTTP) request of using on the Internet; (iii) the HTTP request after conversion is forwarded to the site of appointment; (iv) from this point, for example receive, to the standard http response of the HTTP request conversion (common (plain) text or HTML response); (v) http response receiving is carried out to necessary any filtration of having asked or grammatical analysis; (vi) http response that filter or grammatical analysis is transformed to a kind of form that is suitable for wireless transmission, for example PADL; (vii) response (for example PADL form) of conversion is transmitted to request mobile terminal, for showing or further processing.In the present invention, usage data compression in the wireless transmission in backhaul network.

At mobile radio terminal, for example mobile radio terminal 101a, to any one terminal of 101n, when receiving a PADL form, calls " browser " application program so that this PADL form is carried out to grammatical analysis.Fig. 3 illustrates the basic operation of this browser application.As shown in Figure 3.In step 301, this browser program carries out grammatical analysis to this PADL form, to identify and set up the unit of this form.In an embodiment that will be described below, the unit of each PADL form is carried out one or more functions below conventionally: (i) this unit is shown on mobile terminal, (ii) receive user input data (check box (checkboxes) for example, radio (radio) button, text box (textboxes)), (iii) the format data for example, with unit (URL of the site of access) relevant, these data comprise any user input data of reception, using as the part that will send to the IOD request of IOD gateway, (iv) to IOD gateway, transmit specific instruction (for example filter request).In step 302, browser sends control to the unit of foundation, so that each unit and form therefore can show on mobile terminal.In step 303, if ask any user data input, corresponding unit and user work in coordination to obtain user's input.In step 304, if IOD request for example,, by PADL form (user press next " submitting (submit) to " button) generation, is asked by the unit of this form this IOD of formula that formats, for sending to IOD gateway.In step 305, browser makes this IOD request send to IOD gateway.

Therefore, the present invention is in the situation that the burden that increases the weight of wireless communication media bandwidth within reason; Provide in two ways the access to the Internet or intranet: (i) compare with the standard agreement using in current the Internet, the application protocol that the present invention uses is minimum; (ii) data compression technique using in backhaul network.Notice, although mobile radio terminal 101a is called " terminal " to 101n, but each of these mobile terminals is actually a network computer, this is because each terminal is not to be specifically designed to any independent principal computer of access, but server and the database of any number providing by IOD gateway can be provided.

Notice, each the PADL form that sends to mobile terminal can make this mobile terminal carry out the existing capability of mobile terminal arbitrarily, and makes at IOD gateway or effective in any function that can carry out from the accessibility any server of this IOD gateway.Therefore, PADL form is the mechanism to each mobile terminal " programming " aloft.Therefore, each mobile terminal becomes a wireless network computing machine.So, can to user, provide new application and the new function of unrestricted number, without transmitting mobile terminal for reprogramming physics.And, for Web server, can provide these new application and functions to user radio mobile terminal, and force any extra requirement on the existing WWW network server that need not ask at HTML and http protocol.

For being easy to ask to convert and design PADL between standard HTTP request and between the HTTP/ of standard text or HTTP/HTML response and IOD response at IOD.Therefore, between many HTML structures, HTTP structure and PADL structure, can find one-to-one relationship.The example of this corresponding relation provides below.Although PADL realizes at first in bidirection pager, PADL is suitable for being used in the following manner in all devices that requires access the Internet.

PADL mainly concentrates on to relate to and calls the functional upper of teleprogram (for example cgi script or script), is provided for the facility of Transfer Parameters and their value, and allows type number according to the show on mobile radio terminal.In the present embodiment as described below, PADL structure relates to calling of " form " and cgi script or script.These structures are for particularly useful at visit information on the Internet (such as weather, news and physical culture etc.) and transactional services (such as bank transaction, stock trade etc.) at present.

Conventionally, as utilizing the mark in hypertext document, HTML transmits internal expression text (meta-text) information.For example, in HTML, between label L EssT.LTssT.LTFORM> and </FORM>, define HTML form, the corresponding shelves note in PADL is <f> and </f>.HTML form is be utilized to gather variable and their analog value and send to the Yi Ge mechanism of site to process in browser environment.If this PADL subnet closes, run into a unknown mark, ignore this unknown mark.For example, can utilize HTMT<form> mark (by following regulation, to describe in the following description, the grammer of a mark: the selectable flag parameters of Parametric Representation in a. bracket (i.e. []); Flag parameters in b.HTML and PADL can be any order, except the flag parameters in " CHECKED " at HTML or " SELECTED " parameter must be followed this type character; With any text that " < " or " > " do not comprise, all do not think text data with c., text data are not by decipher) the specified CGI scripting of " ACTION " field or the processing of the program HTML form of processing site.The grammer of <form> mark is as follows:

<form?ACTION＝“URL”[METHOD＝“get”“post”

“put”]>?form?elements</form>

Should " METHOD (method) " field identify for the mechanism of Transfer Parameters being assigned to three key words of the CGI scripting of site: " get ", " post " and " put ".According to " get " method, the argument of CGI scripting (argument) is appended to the URL character string of appointment in ACTION field.According to " post " method, the character string that these arguments are used as in " entity-body " field of HTTP request provides.

Therefore, this PADL subnet closes and utilizes a corresponding PADL<F> mark to replace a HTML<form> mark:

<Ft＝“title”h＝host-id?c＝path?to?cgi?program

m＝gou>form?elements</F>

In <F> marker character, parameter " m " can take to represent respectively " get ", the character value ' g ' of " post " and " put " key word, ' o ' ' u ' of HTML<form> mark.URL to HTML " ACTION " field carries out grammatical analysis, and this information is splitted into " h " and " the c field in PADL.If there is in the past a HTML<title> and </title> mark, " t " field of specifying PADL<F> mark is the title comprising between <title> and </title> mark.

In html file, often use a HTML<input> mark to stipulate the input value to CGI scripting.The grammer of HTML<input> mark is as follows:

            ＜Input TYPE＝“hidden”“text”            “password”“submit”“reset”            “radio”“checkbox”  NAME＝“name”            [VALUE＝“value”            [CHECKED]][SIZE＝“number”][MAXLENGTH            ＝“number”＞

Give each the <input> mark in this form a unique name.If the TYPE of HTML<input> mark (type) fields specify " hidden ", do not have user to input relevant to <input> mark.On the contrary, " hidden " HTML<input> mark obtains input value from HTML form itself." hidden " HTML<input> is marked with and helps: leaf is followed the tracks of in the maintenance of specified states variable; The title of the HTML form of CGI scripting is called in expression; Or be the variable set up default value in CGI scripting.

PADL subnet closes HTML " hidden " <input> mark is converted to PADL<H> mark.PADL<H> mark has grammer below:

<Hn＝name[，v＝“VALUE”]>

" NAME (title) " of " n " in PADL<H> mark and " v " field and HTML<input> mark and " VALUE (value) " field are equal to.PADL subnet closes ignores " SIZE (size) " and " MAXLENGTH (the maximum length) " parameter in " hidden " HTML<input> mark.

If stipulated " text (text) " in the TYPE of HTML<input> mark field, received text line of input.The value of stipulating in " VALUE " field is as initial value or the default value of the input variable of stipulating in " NAME " field.The size of the line of text that " SIZE " fields specify shows, and the maximum length of the text that returns with form of " MAXLENGTH " regulation.

PADL subnet closes HTML " text " <input> mark is converted to PADL<L> mark.PADL<L> mark has grammer below:

<Ln＝name[，v＝“value”][，x＝number]>

" n " in PADL<L> mark, " v " and " x " field is equal to respectively with " NAME ", " VALUE " and " MAXLENGTH " field in " text " HTML<input> mark." x " field is stipulated maximum length with byte number, and it can be used in the text returning.PADL subnet closes ignores " SIZE " parameter in " text " HTML<input> mark.When showing a PADL form, the line of text of demonstration has fixing length.

If " password (password) ", receives text line of input in the TYPE of HTML<input> mark fields specify.The size of the line of text that " SIZE " fields specify shows and the maximum length of the text that " MAXLENGTH " fields specify is returned together with this form.Because character is input in this article one's own profession, so they show as " x " character respectively.

PADL subnet closes HTML " password " <input> mark is converted to a PADL<X> mark.This PADL<X> mark has grammer below:

<Xn＝name[，x＝number]>

" n " in PADL<X> mark and " x " field are equal to " NAME " and " MAXLENGTH " field of " password " HTML<input> mark respectively.Should " x " field stipulate maximum length with byte number, it can be used in the text returning.PADL subnet closes ignores " SIZE " parameter in " password " HTML<input> mark.

PADL subnet closes neither replaces " submit " HTML<input> mark, do not replace " reset " HTML<input> mark, because optional software " submit " and " reset " button from the keyboard of mobile terminal are provided yet.

If in the TYPE of HTML<input> mark fields specify " radio " or " checkbox ", for user selects to show a radio button or a check box.In an independent HTML<input> mark, can stipulate a plurality of radio buttons.Thereby shared same " NAME " field.But each check box is defined in an independent HTML<input> mark.In " VALUE " field, the value of appointment is as initial value or the default value of the variable relevant to this radio button or check box.

PADL subnet closes this " radio " HTML<input> mark is converted to PADL<D> mark.PADL<D> mark has grammer below:

<D[s]n＝name[v＝“value”]>

" n " in this PADL<D> mark and " v " field respectively with corresponding " radio " HTML<input> mark in " NAME " and " VALUE " field be equal to.

PADL subnet closes HTML " checkbox (check box) " <input> mark is converted to a PADL<C> mark.PADL<C> mark has grammer below:

<C[s]n＝“name”[，v＝“value”]>

" n " in PADL<C> mark and " v " field respectively with " checkbox " HTML<input> mark in " NAME " and " VALUE " field be equal to.In PADL, if do not selected and a corresponding check box of <C> mark, this value does not pass to CGI scripting as parameter.If be provided with " CHECKED " field in HTML<input> mark, the default value that is somebody's turn to do " VALUE " field is " on ".In order to point out the default value of a <C> mark in PADL, be " on ", after this <C> mark, followed at once character " s ".

In the HTML that uses <textarea (text area) > mark, can provide multiline text region.In most of Web browsers, for each HTML<textarea> mark provides a scroll bar, the grammer of a HTML<textarea> is as follows automatically:

<textarea?NAME＝“name”ROWS＝“number”

COLS＝“number”></textarea>

In the embodiment of this PADL, a HTML<textarea> mark is replaced by the individual <T> mark with following grammer:

<Tn＝name[，v＝“value]>

The > of this <T mark " n " field provides names text filed a kind of mechanism, and " v " field of <T> mark allows a default character string to be placed in text region.The multiline text district of a fixed size is only provided in this embodiment, in the viewing area of mobile terminal.Therefore, ignored the value in ROWS (OK) and COLS (row).

Can be by using and comprise that a <select> mark of a <option> label table provides an option table in HTML, this selects to allow to select multinomial (" option ") of this table.The grammer of this <select> mark is as follows:

        ＜select NAME＝“name”[SIZE＝        “number”][MULTIPLE]＞text/option        list＜/select＞

If there is " MULTIPLE (multinomial) " key word, allow to select a plurality of option tags between <select> and </select> mark." SIZE " field provides rendering preferences number simultaneously.

<option> mark has grammer:

<option[VALUE＝“VALUE”[SELECTED]>

[label]

Each <option> mark represents an optional object." SELECTED " key word represents that optional object is by default selection.[label (label)] field is an option names of <option> mark.

PADL subnet pass is HTML<select> mark with a <S> Marker exchange, and this <S> mark has grammer:

<Sn＝name＞text/option??list</S>

In PADL, ignore " SIZE " field and be not supported in the multinomial selection in a single table (i.e. " mutiple " option), because use <C> mark can obtain substantially the same result.

PADL subnet pass is HTML<option> mark with <O> Marker exchange, and <O> mark has grammer:

<O[s]v＝“value”>[label]

" v " of <O> mark and " label " Related fields are in " VALUE " and " label " of HTML<option> object field.

In HTML respectively by the interruption of <br> and <p> nominated bank and section.<br> and <p> mark have grammer below:

        ＜br[CLEAR＝“left”“right”        “all”]＞        ＜p＞

" CLEAR " field in HTML<br><pGreatT .GreaT.GT mark allows a line in surrounding's interruption of an image.

PADL subnet close HTML<br> mark and <p> mark the two all with " " character (hexadecimal value 10) replacement.In this embodiment, because do not support on-line image on mobile terminal, so PADL ignores " CLEAR " field.

Finally, define a PADL label L EssT.LTssT.LTR>, it closes identification with PADL subnet to be a wave filter of http response appointment.The grammer of this <R> mark is as follows:

<Rf＝free?form?response?filtering

rules>

The example of wave filter that can appointment comprises: (a) for a HTML formal file being transformed to the wave filter of a PADL formal file; (b) for eliminating all HTML marks, and only return to the wave filter of a text; If (c) provide http response with a kind of html table formula, select the wave filter of the column or row value of appointment.

It is for specific embodiment of the present invention is described that detailed description is above provided, rather than intended the present invention.Variations and modifications are within the scope of the invention possible.With claims below, stipulate the present invention.

Claims (10)

1. for providing the access of a computer network system by a mobile radio terminal, comprising:

A communication network of communicating by letter with described mobile radio terminal by a wireless link; With

To a gateway of described computer network, under the control of a control station, described gateway is a proxy server to described mobile radio terminal as described computer network.

2. the system as claimed in claim 1, wherein said communication network comprises:

The base station of communicating by letter with described mobile radio terminal by a wireless communication link; With

Be coupled to the control station of described base station.

3. the system as claimed in claim 1, wherein said gateway comprises a protocol conversion service, it uses a kind of HTTP (HTTP) to transmit message in described computer network, the agreement of a less bandwidth of request for utilization and described message is sent to described mobile radio terminal.

4. system as claimed in claim 3, wherein writes described message with a kind of HTML (Hypertext Markup Language) (HTML).

5. system as claimed in claim 4, wherein said protocol conversion service replaces with the hypertext markup of described html language the respective markers in the second HTML (Hypertext Markup Language) that requires less communication bandwidth.

6. the system as claimed in claim 1, wherein said computer network is an intranet.

7 the system as claimed in claim 1, wherein said computer network is the Internet.

8. for by a method for the wireless terminal of a wireless communication networks and a computer network interface, comprise step:

From described wireless terminal, receive an information retrieval requests;

Described information retrieval requests, from the first format conversion being used in the agreement of described wireless communication networks, be the second form being used in the agreement of described computer network;

Information retrieval requests after described conversion is transmitted to a specified node in described computer network;

From described specified node, receive a response to the information retrieval requests described conversion, described response is provided with described the second form;

By described response, from described the second format conversion, be described the first form;

Response after described conversion is transmitted to described mobile terminal.

9. method as claimed in claim 8, the part that the step of the described response of wherein said conversion is selected from described response extraction, and the step of the response after the described conversion of described forwarding only forwards described selection part, for further processing.

10. method as claimed in claim 8, the step of the described information retrieval requests of wherein said conversion comprises: a proxy server is provided, and at described proxy server, carry out a part for described information request, rather than the described part of described information retrieval requests is sent to a principal computer in described computer network.

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