KR100827752B1 - Web Browsing Performance Improvement System through Mobile Web Gateway Server in Wireless Wide Area Network Environment - Google Patents

Abstract

The present invention relates to a system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment, and more particularly, in a handheld device in a wireless wide area network (WWAN) environment. Web browsing performance is provided by configuring a mobile web gateway server between the mobile terminal and the web content on the WWAN by suggesting a method for improving accessibility to web content (hereinafter referred to as web content) accessible by the HTTP protocol on the wired Internet. The present invention relates to a system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment that can effectively access the web similarly to a PC on a mobile by optimizing the PSE.

The system for improving web browsing performance through the mobile web gateway server in the wireless wide area network environment,

A mobile terminal for viewing contents provided by a web server;

In a system for improving the web browsing performance of a mobile terminal in a wireless wide area network environment comprising a web server for providing content to the mobile terminal,

Based on WML, XHTML, modified HTML, rasterized image or recognizable format of specific viewer It characterized in that it comprises a mobile web gateway server supporting.

According to the present invention, it is possible to effectively browse web contents on a wired Internet on a mobile terminal, and as a solution through a service and a product on a gateway, unlike a conventional mobile terminal application improvement method to improve mobile web accessibility. The overhead for installing an application in a terminal can be reduced, thereby saving computing power such as power of a portable terminal.

In addition, it is possible to provide the user with the efficiency and the economic effect because the reflection of the constantly changing and evolving web related technology can be supported through the mobile web gateway server rather than the portable terminal.

Description

Web browsing performance improvement system using mobile web gateway server} in wireless wide area network environment

1 is a diagram showing data processing capability of a PC and a mobile terminal CPU.

2 is a diagram illustrating a scheme of multiple and persistent connection technique.

3 is a diagram illustrating Schema of non-pipelined and pipelined connection techniques.

4 is a diagram illustrating a power saving scheme according to a distance between a terminal and a known section.

5 illustrates the need for a dynamic power regulation technique.

6 is a view showing that the higher the power consumption for high efficiency during data transmission, the higher the power loss rate.

7 is an overall configuration diagram of a system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment according to an embodiment of the present invention.

8 is a block diagram illustrating in detail a system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment according to an embodiment of the present invention.

9 is a view illustrating a gateway interface unit of a system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment according to an embodiment of the present invention.

FIG. 10 is a first exemplary view of an HTTP request message that can be received from a mobile terminal in a gateway interface of a system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment according to an embodiment of the present invention.

11 is a second exemplary view of an HTTP request message that can be received from a mobile terminal in a gateway interface of a system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment according to an embodiment of the present invention.

12 is a diagram illustrating a collection unit of a system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment according to an embodiment of the present invention.

FIG. 13 is a diagram illustrating an analysis unit of a system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment according to an embodiment of the present invention.

14 is a diagram illustrating a conversion unit of a system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment according to an embodiment of the present invention.

15 is a diagram showing the results of performance evaluation under a broadband wireless network.

16 is a diagram illustrating a correlation between the number of TCP connections and the download time.

17 is a diagram showing the time used for each component used when accessing each site in a broadband wireless network environment.

18 is a diagram illustrating another technique required for improving web browsing speed on a mobile terminal which is a wired / wireless integrated environment.

19 is a diagram illustrating a compression unit of a system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment according to an embodiment of the present invention.

20 is a detailed view of a virtual persistent pipelining technique for reducing the number of TCP connections on a mobile terminal of a system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment according to an embodiment of the present invention.

21 is a detailed diagram of a URL reconstruction technique for removing DNS search time on a portable terminal of a system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment according to an embodiment of the present invention.

22 is a diagram illustrating a web document merging method through web parsing for improving web content download speed on a mobile terminal of a system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment according to an embodiment of the present invention. Detailed drawing.

Explanation of symbols on the main parts of the drawings

100: mobile web gateway server 110: terminal information management

120: conversion process means 120a: conversion unit

120b: analysis unit 120c: collection unit

130: gateway interface unit 140: dynamic compression unit

200: portable terminal 300: web server

The present invention relates to a system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment, and more particularly, in a handheld device in a wireless wide area network (WWAN) environment. Web browsing performance is provided by configuring a mobile web gateway server between the mobile terminal and the web content on the WWAN by suggesting a method for improving accessibility to web content (hereinafter referred to as web content) accessible by the HTTP protocol on the wired Internet. The present invention relates to a system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment that can effectively access the web similarly to a PC on a mobile by optimizing the PSE.

In general, in the technical and industrial environments up to now, the web content can be viewed in two ways. One method is to apply the mobile terminal as a miniature PC, and the other is to apply the mobile terminal as a multi-purpose mobile phone.

The technique applied in terms of recognizing the portable terminal as a micro PC is mainly used in devices such as PocketPC, PDA phone, Wibro terminal. In this case, an approach is taken to recognize the mobile terminal as a host using Internet resources and to adapt various standards of the existing Internet to the characteristics of the wireless network. Thus, operating systems and web browsers similar to those of PCs are mainly used, and there are representative operating systems such as Windows PocketPC, Windows Mobile, and the like, and Microsoft Internet Explorer for Windows Mobile or Opera web browsers. There is a tendency to be mounted on.

On the other hand, the technique applied in terms of recognizing the mobile terminal as a multi-purpose mobile phone is mainly adopted by the wireless mobile communication service provider, and creates a new communication standard according to the characteristics of the wireless network separately from the communication standard of the existing wired Internet. Platforms and protocols, content standards, and independent content browsers are being created to support the communications standards. Examples of these include network-based and WAP protocols such as GSM / CDMA / WCDMA / UMTS, and various content formats such as WML, xHTML, cHTML, and mHTML. These content browsers include various embedded browsers such as WAP browser, xHTML browser, and cHTML browser. There are browsers on a virtual machine (VM).

In recent years, efforts have been made to view web contents on a wired Internet in a portable terminal due to the improvement of the rental width of a wireless network and the development of the resolution of a terminal liquid crystal. These efforts, mainly driven by existing embedded browser vendors, suggest several approaches. In order to configure the screen optimized for the liquid crystal of the mobile terminal, the entire structure of the web page is shown in a small map, so that the user can find the desired part, or the horizontal scroll bar is removed from the terminal to scroll only vertically, and the screen The method of zooming in and out is used.

Nevertheless, as shown in Fig. 1, the data processing capability of the mobile terminal CPU is only a few tenth of that of a general PC, and the memory allocated to the embedded browser is also less than 10M, and the input interface is also very limited. It is a reality.

Since the present invention relates to the browsing performance of web content on the wired Internet in the mobile terminal on the WWAN, this is mainly related to the specificity of the wired / wireless integrated environment and the influence of the mobile terminal environment having a relatively limited computing power on the web browser. It can be regarded as related.

For this reason, the technology related to the present invention and the related art are related to the performance of a general web browser, and also in a mobile terminal having limited computing power and the performance of the HTTP protocol that forms the basis of web browsing in a wired / wireless integrated environment. It is closely related to factors influencing the computing power of web browsing applications.

In general terms, the performance of web browsers is said to be related to the speed of web content collection, which is the most important area in terms of sufficient computing power. For this reason, the W3C, which leads web standards, has studied how to improve HTTP performance in terms of performance improvements related to Web document collection, and has defined some solutions. According to the results of this study, it is suggested that reducing the absolute size of web documents is desirable in low network rentals, and that HTTP connection maintenance is supported when sufficient network rentals are guaranteed. have. The most commonly used technique is the gzip compression method to reduce the size of web documents. Persistent connection and pipelining techniques are said to be effective for maintaining HTTP connections.

The content transmission capacity reduction method using gzip compression uses the most common compression algorithm method. When a web document is mainly received between the web server serving the web document and the web browser collecting the web document, the web document is compressed and transmitted. How to improve it.

The HTTP connection and related persistent connection schemes are used to transfer multiple web content between the same web server and web browser in maintaining the TCP connection, which is a low-level protocol of the HTTP protocol used to transfer web content between the web browser and the web server. By repeatedly using the web contents transmission / reception while maintaining the original TCP connection, the method improves performance by eliminating the TCP connection overhead.

In addition, Pipelining technique is a method to improve transmission / reception performance by arranging web contents in a sequential order rather than sequentially in order to make GET or HEAD requests more effectively based on HTTP Persistent connection.

This is represented in Figs.

Although web browsing performance is related to web content collection while ensuring sufficient computing power and sufficient bandwidth, there are different results in wired / wireless integrated environments. This can be seen empirically in Wibro, WCDMA, and CDMA2000-based PDA phones, which occurs in web browsers running on Windows PocketPC or Windows Mobile.

The rental bandwidth of CDMA 1x-EV-DO method is 2.4Mbps, the download rental width of HSPDA wireless network is 14.4Mbps, and the download rental width of Wibro wireless network is approximately 18.4Mbps. In addition, various infrastructure technologies are utilized in connection with the rental bandwidth amplification. HSPDA introduces a Time Division Multiplexed (TDM) slot to increase downlink speed, which is one forward physical channel from a base station to a terminal. This is how all resources are allocated. Although the rental width in the wireless environment is being improved by the progress of each infrastructure technology, when accessing the web from the rental bandwidth-based PDA phone, it takes much time or stops in the middle of the web screen. Experience shows that there are phenomena.

This is because the HTTP protocol, which is the basis of web browsing, works differently from the wired Internet, combined with the special situation of wireless environment. This result is due to physical characteristics such as handovers, environmental influences such as fading, and relatively high latency, packet header overhead, and packet loss rate over wires.

In addition, the limited computing power of portable devices also affects the performance of web browsing. This is related to the physical configuration of the terminal, such as the performance of the terminal chipset, onboard memory, small display liquid crystal and limited power supply. Among them, QVGA (320X240) is emerging as a universal specification in the domestic display liquid crystal field, and VGA (640X480) prototypes are appearing in the case of neighboring Japan. In addition, the performance of memory and chipset is also very developed. However, the rate of power generation is relatively slow.

For this reason, power-saving technologies have become mainstream in key technology areas of companies such as QUALCOMM, which produces CDMA core chipsets. For example, the power saving scheme based on the distance between the terminal and the base station, the power saving scheme based on the correlation between voice and data transmission and reception, and the power saving scheme based on the relationship between the data transmission rate and the power loss rate.

This is shown in Figures 4 to 5, Figure 5 means that more power is used for data transmission and reception than voice.

As such, the web browsing performance on the mobile terminal has to consider various variables such as the HTTP protocol environment, the wireless network environment, and the wireless terminal environment, which are the basis of web content access, and continuous improvement methods are being sought for each area. In addition, despite these environmental constraints, various demands related to wired and wireless integration are maturing the mobile web browser market and motivating the release of various technology-based mobile web browsers. Recent mobile web browsers include embedded web browsers that have been installed since the launch of mobile terminals, VM-based browsers that operate on various virtual platforms, Windows PocketPC equipped with PC-like operating systems, or web browsers that operate in Windows Mobile environments. There is this.

Mainly embedded web browser seems to move toward supporting CDF including WHTML, XHTML, SVG, SMIL, etc. Representatively, there are products such as Opera and browsers of Infraware in Korea. In the case of the browser on the VM, various modified web browsing methods based on WIPI have been proposed in Korea, and rasterizing-based techniques seem to be mainly used, and there are global MIDP-based browsers. Also, Windows PocketPC or Windows Mobile tend to have a variety of web browsers running on PCs.

The general feature of these web browsers is to provide a way to effectively display the web screen on a small LCD screen, which is mainly used to display the web on a small LCD screen. Techniques such as showing through, and adjusting the font size of characters are being loaded.

Even without a detailed analysis of the various constraints and related technologies of the previous environment, a realistically available mobile web infrastructure that shows real-time websites created through various technical techniques on the Internet, such as on a PC in a mobile environment, is still not available. It's a very bad situation.

Accordingly, the present invention has been made to solve the above conventional problems,

SUMMARY OF THE INVENTION An object of the present invention is to provide a mobile gateway-based technology technique for effectively viewing web content on a mobile terminal equipped with various wireless environments, various hardware terminal environments, and various browser applications. .

The system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment of the present invention for achieving the above object,

A mobile terminal for viewing contents provided by a web server;

In a system for improving the web browsing performance of a mobile terminal in a wireless wide area network environment comprising a web server for providing content to the mobile terminal,

Based on WML, XHTML, modified HTML, rasterized image or recognizable format of specific viewer It characterized in that it comprises a mobile web gateway server supporting.

At this time, the mobile web gateway server,

A terminal information management unit for managing information of the portable terminal and application information present on the portable terminal;

A conversion process means for performing a conversion process and sending a final result message to the mobile terminal;

Characterized in that it comprises a gateway interface that is responsible for communication between the mobile terminal and the mobile web gateway server

In addition, the mobile web gateway server according to another aspect of the present invention,

A terminal information management unit for managing information of the portable terminal and application information present on the portable terminal;

A conversion process means for performing a conversion process and sending a final result message to the mobile terminal;

A gateway interface unit responsible for communication between the mobile terminal and the mobile web gateway server;

In order to reduce the transmission capacity of the web content to be transmitted to the mobile terminal is characterized in that it comprises a dynamic compression to enable a low transmission bandwidth by compressing.

At this time, the conversion process means,

A collection unit that is based on the first HTTP request message transmitted from the gateway interface unit or performs input / output for additional web content required by the conversion unit and the analysis unit;

A conversion unit for analyzing the web content according to the MIME type of the web content collected by the collection unit and performing additional collection if necessary, and sending the final result message to the mobile terminal when the collection and analysis is completed. An analysis unit which passes the analysis results to the conversion unit for calling,

And a conversion unit for generating a result to be transmitted to the final mobile terminal through processing on the HTML DOM or the XML DOM generated by the analysis unit.

The collection unit,

A cache manager that checks whether the cache exists based on the HTTP request message and manages the web contents collected according to the HTTP request message;

DNS manager responsible for DNS discovery,

HTTP client that is in charge of communication based on HTTP protocol,

Characterized in that it comprises a TCP socket management unit for managing the actual communication input and output portion over TCP / IP.

The analysis unit,

A MIME type analysis unit analyzing the web content according to the MIME type of the web content collected through the collection unit;

An SGML parser that interprets the HTML DTDs distributed by the W3C to form rules for parsing HTML;

An HTML validity processor for processing the validity of HTML based on a rule formed by the SGML parser;

An HTML parser that parses HTML,

An XML parser for parsing XML by parsing an external DTD;

A CSS parser that parses the collected CSS by requesting the collection unit if an external CSS object exists,

A CSS rule processor that applies CSS rules to the validated HTML tags by reconstructing the priority of CSS rules when the analysis is completed through the CSS analyzer;

A JavaScript interpreter that translates JavaScript syntax,

Characterized in that it comprises an image analyzer for analyzing the image.

In addition, the analysis unit,

In the verified situation, the structure of the HTML document is a DOM structure, and the DOM may be expressed as an XML DOM instead of an HTML DOM by the kind of input data of the initial analysis unit, JavaScript, or XSLT.

The conversion unit,

A conversion process generation unit for determining a type of a result to be transmitted to the mobile terminal based on the terminal information of the mobile terminal collected by the mobile terminal at the first time and the application information present on the terminal;

A layout processing unit which performs a layout process;

A rasterizing processor for performing a processing process for performing a rasterizing process based on a simple analysis without performing a layout process on a mobile terminal;

A vectorizing processor for performing a processing process of vectorizing the laid-out result again;

And a conversion result management unit for managing the conversion result format.

The conversion process generating unit,

Markup and text data format conversion unit for converting the markup-based web content to the same or modified Markup and delivered,

MHTML format conversion unit that performs the merging process when merging the conversion result regardless of the conversion format,

A raster image format conversion unit for performing a merging process so as to be represented as a set of points on a screen;

It is characterized in that it comprises a vector data format conversion unit for performing a processing process for generating the final result in the expressed Markup at the formatting level.

The dynamic compression unit,

A dynamic compression interface that receives the HTML DOM or the XML DOM through the conversion process means or receives the conversion result format;

A lossy compression processor that processes compression in a lossy area such as an image,

A lossless compression processor which processes compression in a lossless area such as text data,

Represents all the link URLs in a web document as a single piece of information in a random web browsing process, using a single mapped index in areas where small amounts of information are needed, and restoring the original information from the single index in actual processing. URL compression processing unit,

And a dynamic decompression interface unit reconstructing the index-based URL information back to the first URL information.

Mobile web gateway server of the present invention through the configuration as described above,

It is configured between the web server and the mobile terminal, and merging web objects existing on the web server separately into one or a plurality of contents and transmitting the same to a mobile terminal.

In this case, the merging,

It uses a MIME encoding method.

In addition, the merging according to another aspect,

TAR or GZIP compression method is used.

In addition, the merging,

The mobile terminal converts the image into a rasterized image in order to reduce data processing time for rasterizing the screen.

In addition, the merging,

The optimization is performed for each web object.

At this time, the optimization,

It is characterized by converting to XHTML by checking the validity of HTML.

In addition, the optimization,

In order to reduce the data processing time for the layout by analyzing the corresponding information in the mobile terminal, the layout information is analyzed to include absolute coordinates or width and height.

In addition, the optimization,

It checks the validity of the CSS document and removes unnecessary CSS rules.

In addition, the optimization,

It is characterized by a method of adjusting the image to the size to be finally displayed and merging all used images into one image.

In addition, the optimization,

In order to reduce the transfer capacity of the rasterized web content, the image is separated and transmitted based on a page of a specific size in order.

In addition, the mobile web gateway server,

In order to reduce web document collection time in mobile terminal, it uses virtual HTTP connection maintaining method and virtual HTTP connection based pipelining method.

In addition, the mobile web gateway server,

In order to reduce the DNS search time in a mobile terminal, it is characterized by converting all web URLs to IP addresses.

In addition, the mobile web gateway server,

In order to reduce the size of HTTP link information in a mobile terminal, all web links are converted into arbitrary hashes.

The gateway interface unit,

An HTTP request receiver for receiving an HTTP request message from a mobile terminal,

A format conversion rule management unit for managing format conversion rules according to the mobile terminal information and the mobile terminal application information;

And an HTTP response transmitter for transmitting the result of the conversion through the conversion processing.

A key aspect of the present invention is a technology for optimizing the efficiency of web browsing in a mobile terminal in various wireless environments through a mobile web gateway server. (Hereinafter, web browsing in a mobile terminal in a wireless environment is called a mobile web.)

In realizing the mobile web, the method using the mobile web gateway server improves web browser technology on mobile terminals, improves mobile terminal hardware technology, and wireless network transmission in a limited environment in that performance is improved at a specific location on the Internet. This technique is very different from the rental width improvement.

For this reason, the main characteristics of the present invention are related to the main operation principle of the mobile web gateway server, and the detailed description thereof will explain the advantages of the present invention and the fundamental differences from the conventional methods.

In addition, specific embodiments will be described to further refine this description. In addition, these specific embodiments are not intended to limit the scope of the present invention, and other characteristics and advantages of the present invention are described in the following description, and are partially apparent from the description, or through the practice of the present invention. Can be learned.

The nature and advantages of the invention will be realized and attained by means of the elements and combinations thereof pointed out in the appended claims and will become more apparent.

7 is an overall configuration diagram of a system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment according to an embodiment of the present invention.

8 illustrates a mobile web service under a wireless wide area network environment according to an embodiment of the present invention.

This is a block diagram specifically illustrating a system for improving web browsing performance through an Eatway server.

As shown in Figure 7 to 8, the system for improving web browsing performance through the mobile web gateway server in the present invention, the wireless wide area network environment,

A mobile terminal 200 capable of viewing contents provided by a web server;

In a system for improving the web browsing performance of a mobile terminal in a wireless wide area network environment comprising a web server 300 for providing content to the mobile terminal,

Based on WML, XHTML, modified HTML, rasterized image or recognizable format of specific viewer It characterized in that it comprises a mobile web gateway server 100 to support.

At this time, the mobile web gateway server 100,

A terminal information management unit 110 for managing information of the portable terminal and application information existing on the portable terminal;

A conversion process means 120 for performing a conversion process and transmitting a final result message to the mobile terminal;

It characterized in that it comprises a gateway interface unit 130 responsible for communication between the mobile terminal and the mobile web gateway server.

In addition, according to another aspect of the present invention, the mobile web gateway server,

A terminal information management unit 110 for managing information of the portable terminal and application information existing on the portable terminal;

A conversion process means 120 for performing a conversion process and transmitting a final result message to the mobile terminal;

A gateway interface 130 for communicating between the mobile terminal and the mobile web gateway server;

It is characterized in that it comprises a dynamic compression unit (not shown) to use a low transmission bandwidth by compressing to reduce the transmission capacity of the web content transmitted to the mobile terminal.

In more detail, the mobile web technology through the mobile web gateway server 100, which is a main feature of the present invention, has meaning in the following dimensions.

Basically, a web page is a set of various standards and technologies, as well as a collection of web objects existing on the HTTP protocol, even though it is a screen displayed by a specific web browser from a user's point of view. It is a concept that includes new technologies, standards and formats. At the present time, web pages are generally represented simply in HTML or XHTML, but inside they contain various image objects such as Gif, Jpeg, Bmp, Png, and so on, as well as programming interfaces such as DOM and JavaScript. It also includes stylesheets such as CSS Level 1, 2, and 3, XML-based standards such as XML, XSL, SVG, and VML. It also includes objects such as audio, video, and flash. Recently, technologies such as XSLT, XML processors and AJAX have also been included.

This evolving web is sufficiently limited by the present and future web browsing applications on mobile terminals, which are limited by the limitations of mobile terminals and wireless networks.

And even if there is a web browser application for a mobile terminal that sufficiently solves these limitations, the web is evolving, so that the application will have partial restrictions, and a new web browser application for a mobile terminal has already been developed. The constraints clearly exist because the method of installation on an existing terminal is not effective.

On the contrary, the mobile web gateway technology mentioned in the present invention has the potential in that it exists on the wired Internet and can provide sufficient computing power, thereby improving the web browsing capability on the mobile terminal. It has the advantage of being able to.

As shown in FIG. 8, although the mobile phone # 1, the mobile phone # 2, the mobile phone # 3, and the PDA phone want to access a specific URL, the browser application mounted on the mobile phone # 1 is a WAP browser, and the mobile phone # 2 is mounted on the mobile phone # 2. It is assumed that the browser application is an XHTML browser, the browser application installed in the mobile phone # 3 has WIPI-based simple image viewing or WIPI-based simple viewer, and the PDA phone has a general commercial web browser.

If the terminal wants to access the web URL, the web proxy server is configured through the specific configuration of the mobile terminal, or the mobile web gateway server is used for all wired / wireless integrations according to the infrastructure configuration of the wireless network operator. Suppose

Under this environment, the mobile web gateway server 100 receives URL and terminal information from the mobile terminal as input, and at the same time, WML, XHTML, modified HTML, rasterized image, or specific viewer for web browsing method optimized for the mobile terminal. It is responsible for supporting the format based on the recognizable form of.

In addition, the conversion process means 120,

A collection unit 120c based on the first HTTP request message transmitted from the gateway interface unit or in charge of input / output of additional web content required by the conversion unit and the analysis unit;

A conversion unit for analyzing the web content according to the MIME type of the web content collected by the collection unit and performing additional collection if necessary, and sending the final result message to the mobile terminal when the collection and analysis is completed. An analysis unit 120b which delivers the analysis result to the conversion unit for calling;

The conversion unit 120a generates a result to be transmitted to the final mobile terminal through processing on the HTML DOM or the XML DOM generated by the analysis unit.

9 is a view illustrating a gateway interface unit of a system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment according to an embodiment of the present invention.

As shown in Figure 9, the gateway interface unit 130,

An HTTP request receiver 130a for receiving an HTTP request message from a mobile terminal,

A format conversion rule management unit 130b for managing format conversion rules according to the portable terminal information and the portable terminal application information;

And an HTTP response transmitter 130c for transmitting the result of the conversion through the conversion processing.

It will be described in detail with reference to Figs. 9 to 11 how the mechanism of the mobile web gateway server to operate the system of the present invention for conversion.

The gateway interface unit 130 is responsible for communication between the mobile terminal and the mobile web gateway server. 10 to 11 illustrate two examples of an HTTP request message that can be accepted from a mobile terminal in the gateway interface unit.

This HTTP request message is transmitted to the conversion process interface to perform the conversion process means consisting of a collecting unit, an analysis unit, and a conversion unit through the gateway interface unit, and is transmitted to the mobile terminal by the conversion process interface unit (not shown). The final result message will be received and it is responsible for transmitting it to the mobile terminal.

12 is a diagram illustrating a collection unit of a system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment according to an embodiment of the present invention.

As shown in FIG. 12, the collection unit 120c

A cache management unit 120ca which checks whether a cache exists based on an HTTP request message and manages web content collected according to an HTTP request message;

DNS manager (120cb) in charge of DNS search,

HTTP client (120cc) in charge of communication based on HTTP protocol,

It is characterized in that it comprises a TCP socket management unit (120cd) for managing the actual communication input and output portion via TCP / IP.

In more detail, the collection unit is based on the first HTTP request message transmitted from the gateway interface unit 130 or is responsible for input and output of additional web content required by the analysis unit or the conversion unit to be described later. To this end, it consists of a cache manager for managing collected web content, a DNS manager responsible for DNS discovery, an HTTP client responsible for HTTP protocol-based communication, and a TCP socket manager, which is the actual input / output part of TCP / IP. .

Based on this configuration, the collection unit is responsible for delivering the collected web content to the analysis unit for processing the corresponding web content.

FIG. 13 is a diagram illustrating an analysis unit of a system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment according to an embodiment of the present invention.

As shown in FIG. 13, the analysis unit 120b

MIME type analysis unit 120ba for analyzing the corresponding web content according to the MIME type of the web content collected through the collecting unit;

An SGML parser (120bb) that parses the HTML DTDs distributed by the W3C to form rules for HTML parsing,

HTML validity processor (120bc) for processing the validity of the HTML based on the rules formed by the SGML parser,

HTML parser (120bd) to parse HTML,

An XML parser (120be) that parses an external DTD to parse XML;

CSS analyzer 120bf that analyzes the collected CSS by requesting the collection unit if the external CSS object exists,

CSS rule processor (120bg) to apply the CSS rule to the validated HTML tag by reconfiguring the CSS rules prior to the analysis through the CSS parser,

JavaScript interpreter (120bh) which translates JavaScript syntax,

And an image analyzer 120bi for analyzing the image.

In addition, the analysis unit,

In the verified situation, the structure of the HTML document is a DOM structure, and the DOM may be expressed as an XML DOM instead of an HTML DOM by the kind of input data of the initial analysis unit, JavaScript, or XSLT.

As described above, the analysis unit analyzes the web content according to the MIME type of the web content collected by the collection unit, and additionally collects it if necessary, and when all collection and analysis are completed, the final result message is output. The analysis result is transmitted to the interface of the converter in order to call the converter performing a process for sending to the terminal.

The structure of the analysis section shown in Fig. 13 is a schematic diagram for processing all types of web content currently seen on a PC.

However, since it is difficult to define all of the detailed descriptions in this embodiment, the role of the analysis unit will be described based on the case where the HTML document is received at the initial time.

When the parser receives the first HTML document as input, it calls the SGML parser to parse the HTML. At this time, the SGML parser parses the HTML DTD distributed by the W3C to form a rule for HTML parsing. Based on this rule, the HTML validator parses the HTML document.

If there is a web object object that exists outside the HTML document during this process, it will request that object from the collector and continue parsing. However, if an external JavaScript object object is required, it must wait until the object is collected by the collector. Because JavaScript objects can delete or add HTML syntax parsed so far, which affects HTML validation. In this process, when you parse HTML, you do CSS parsing. In the process of parsing the CSS, if the external CSS object exists, it should be collected by requesting the collection unit.When all the CSS is collected and the CSS parsing is finished, the priority of the CSS rule is reconstructed. Apply CSS rules for validated HTML tags. In addition, if there is a part related to CSS Rule or an event related part in the result through JavaScript, it is reflected in the valid and layered HTML document structure to which CSS is applied. In this situation, the structure of the HTML document is the DOM structure, and the DOM may be represented as an XML DOM instead of an HTML DOM by the kind of input data of the initial analysis unit, JavaScript, or XSLT.

14 is a diagram illustrating a conversion unit of a system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment according to an embodiment of the present invention.

As shown in FIG. 14, the conversion unit 120a

A conversion process generation unit 120aa for determining a type of a result to be transmitted to the portable terminal based on the terminal information of the portable terminal collected by the portable terminal at the first time and the application information present on the terminal;

A layout processor 120ab which performs a layout process;

Rasterizing processing unit 120ac for performing a processing process for performing a rasterizing based on a simple analysis without performing a layout process on a mobile terminal,

A vectorizing processor 120ad which performs a processing process of vectorizing the laid out result again;

And a conversion result management unit 120ae for managing the conversion result format.

At this time, the conversion process generating unit,

Markup and text data format converter 120af for converting the markup-based web content into the same markup or modified markup, and transmitting the same.

MHTML format conversion unit 120ag which performs the merging process when merging the conversion result regardless of the conversion format,

A raster image format conversion unit 120ah for performing a merging process so as to be represented as a set of points on the screen;

And a vector data format conversion unit 120ai which performs a processing for generating a final result with the expressed Markup at the formatting level.

In more detail, the processing of the resulting HTML DOM or XML DOM by the analysis unit plays a role in producing a result to be sent to the final mobile terminal. To this end, the type of the result to be transmitted to the mobile terminal is determined based on the terminal information of the mobile terminal collected from the mobile terminal at the first time and the application information present on the terminal. Determining the type of this result may be manually registered by an administrator managing the mobile web gateway server, or arbitrarily determined by a request of an application on the mobile terminal. On this basis, once the type of the final product is determined, the transformation unit performs a process for producing the result. This processing process is largely the Markup and text data format conversion unit 120af for converting the Markup-based web content into the same Markup or transformed Markup and delivering it,

MHTML format conversion unit 120ag which performs the merging process when merging the conversion result regardless of the conversion format,

A raster image format conversion unit 120ah for performing a merging process so as to be represented as a set of points on the screen;

The result is generated through the vector data format converter 120ai which performs a processing for generating the final result with the expressed Markup at the formatting level.

That is, the Markup and text data format conversion unit 120af converts and delivers the Markup-based web content into the same Markup or modified Markup, and this is performed by an XSLT processing process based on XSL defining a conversion rule.

The mHTML format conversion unit 120ag performs a merging process when merging the conversion result regardless of the format of the conversion. However, this processing is only performed if the merging component of the merging process is still based on the separated web object object.

The raster image format conversion unit 120ah is a form of merging, but is a merging process to a level that can be expressed as a set of points on the screen, and this is mainly called rasterization. For such rasterization, layout must be performed first. For this purpose, layout is performed through a layout processing unit and then rasterizing processing is performed.

Although the vector data format conversion unit 120ai is a representation of the markup level, the vector data format conversion unit 120ai is a processing process for making a final result with the representation markup at the formatting level. This is a processing process for performing rasterization based on simple analysis without performing a layout process on a mobile terminal, and performs a processing process of vectorizing the layout result again.

Although this process performs a single processing process, it can be used in combination with one or more processing processes. The processing process can be configured by the mobile web manager for various end result formats. It may also be configured by an application.

Until now, as an embodiment of the present invention, a technique for converting and serving web content in a displayable method based on the environment of a mobile terminal through a mobile web gateway server has been described.

Such a service technique is an embodiment for realizing a mobile web through a gateway server in a mobile terminal. In the following, more detailed technical techniques for expressing the core technical bases of the present invention will be described.

As mentioned earlier, the performance of a web browser is affected by the speed of collecting web content, computing power, and network bandwidth. Therefore, the conventional performance improvement technique mentioned that the performance improvement technique by reducing the transmission capacity through the HTTP connection performance improvement and the compression method of the web content based on Persistent Pipelining is used. However, these techniques are not very effective in a portable terminal environment. The reason is that the limited power capacity and the special environment of the wireless network limit the computing power of the mobile terminal. This particularity has a great impact on web browsing performance, especially on portable terminals.

To clarify the correlation between mobile terminal environment and web browsing performance, we present the performance evaluation results in the following broadband wireless networks.

The performance evaluation result shown in FIG. 15 indicates the correlation between the number of TCP connections and the HTTP protocol. Persistent Connections and Pipelining techniques provided by HTTP 1.1 show that the number of TCP connections is being reduced.

The performance evaluation result shown in FIG. 16 shows the correlation between the number of TCP connections and the download time. In other words, the more connections, the longer the download time.

17 shows the time used for each component used when accessing each site in a broadband wireless network environment. In Figure 17, Payload represents the time used to transmit the actual useful data, DNS time is the DNS lookup time used to access the website, and TCP 3W / SS is due to TCP's initial 3-way handshake and slow start. Other under utilization means wasted time due to inefficiency due to the physical environment of wireless network.

In addition, as shown in FIG. 18, the performance evaluation data demonstrates that a technique different from conventional techniques is required to improve web browsing speed on a mobile terminal which is a wired / wireless integrated environment. There are many methods that can be optimized mainly in the application area and the session area. As an alternative to this, the present invention proposes a new form of a web content compression scheme through a mobile web gateway server and reduces the number of TCP connections significantly. In this paper, we propose a technique for improving web browsing performance in a mobile terminal environment.

19 is a diagram illustrating a compression unit of a system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment according to an embodiment of the present invention.

As shown in Figure 19, the dynamic compression unit 140,

A dynamic compression interface unit 140a which receives the HTML DOM or the XML DOM through the conversion process means or receives the conversion result format;

A lossy compression processor 140b which processes compression in a lossy area such as an image;

A lossless compression processor 140c which processes compression in a lossless area such as text data, and

Represents all the link URLs in a web document as a single piece of information in a random web browsing process, using a single mapped index in areas where small amounts of information are needed, and restoring the original information from the single index in actual processing. URL compression processing unit 140d,

And a dynamic decompression interface unit 140e for reconstructing the index-based URL information back to the first URL information.

The correlation between the improvement of web browsing performance and the capacity of web content delivery is the greater the lower the transmission rental width. To this end, techniques for compressing web content exist. Compressor methods are mainly classified into lossy compression and lossless compression. Lossy compression is used for lossy areas such as images, and lossless compression is used for text data. The same technique is used in the lossy compression processing section and the lossless compression processing section of the present invention.

However, the specificity of the web document greatly increases the size of the link area among the contents of the web content. Therefore, the hash-based URL compression processor employing a hash-based compression method for minimizing the web link information will be described. do. The hash-based URL compression method expresses all the link URLs in a web document as a single piece of information in a random web browsing process, using a single mapped index in areas where small amounts of information are needed, and from the single index in actual processing. This is a method of restoring original information.

To this end, a single session must be assigned to each page of web browsing, and a sequential index is assigned to all the link information in the web document under this assigned session. This process is performed by the URL conversion routine. Reorganize all the links in the web document based on the index. The modified document information affects the result of the analyzing unit or the converting unit in the above-described embodiment.

In addition, the consequences of this influence are related to the web link access of the mobile terminal. In order to process this process, the dynamic decompression interface unit reconstructs the index-based URL information back to the original URL information. And this result will be used in the analyzing part, the converting part, especially the cache part processing in the previous embodiment.

 20 is a detailed view of a virtual persistent pipelining technique for reducing the number of TCP connections on a mobile terminal of a system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment according to an embodiment of the present invention.

As shown in FIG. 20, web browsing performance is also greatly affected by the content delivery speed. In particular, the persistent connection and pipelining techniques on the wired Internet are ignored by the web server configuration or are not effective in the wired / wireless integration environment.

As of November 13, 2006, the web page constituting the initial screen of major portals at home and abroad is composed as follows.

NAVER: Number of files (79), File size (207,280 Byte)

Next: Number of files (124), File size (341,285 Byte)

Blue: Number of files (113), File size (263,210 Byte)

Nate: Number of files (111), File size (391,633 Byte)

Yahoo Korea: Number of files (131), File size (562,630 Byte)

Chosun Ilbo: Number of files (110), File size (499,184 Byte)

Yahoo USA: Number of files (52), File size (293,219 Byte)

CNN: Number of files (206), File size (489,560 Byte)

As such, the number of web objects to be collected by the HTTP protocol in order to construct a single web screen is very large. However, if the configuration of the web server or the specificity of the wired / wireless environment prevents the use of the HTTP Persistent Connection and Pipelining techniques, there are only two methods of collecting them. One way is to open and close a connection repeatedly and retrieve all the web objects on the page sequentially. The other is to parallelize the fetching of Web objects sequentially, opening and closing any number of connections simultaneously. However, in order to perform the latter method in the mobile terminal, it is constrained by the physical limitation of securing multiple CDMA channels at the same time and the computing power limitation of the mobile terminal. Therefore, web objects are executed sequentially while opening and closing one connection. Have no choice but to.

The virtual connection maintenance-based parallel processing technique referred to here maintains the connection with the mobile terminal virtually at the gateway server for the web URL to be accessed from the mobile terminal, and provides a virtual pipelining technique, thereby providing a content transmission speed of the mobile terminal. To improve it.

 For this purpose, the virtual connection maintenance unit responds to the first HTTP request message from the mobile terminal, and the HTTP1.1-based connection maintenance and pipelining techniques are valid regardless of the URL that the mobile terminal attempts to access. Send a message. Based on this, the keep-alive request and the pipelining request are validated while maintaining the connection until the session is terminated while maintaining the HTTP connection with the mobile terminal.

 In this process, the mobile web gateway server hashes all URL information to MD5 to respond to many users at the same time, and divides it by the number of HTTP proxy servers being processed in parallel to access the URL. Specify as a proxy server. By maximizing the caching effect for the same URL in various simultaneous accessor environments, it is possible to enable parallel connection processing based on virtual connection maintenance even under multiple simultaneous accessor environments.

21 is a detailed diagram of a URL reconstruction technique for removing DNS search time on a portable terminal of a system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment according to an embodiment of the present invention.

As shown in FIG. 21, the performance improvement technique by reducing the DNS search time on the mobile terminal is a technique that can be mixed with the hash-based URL compression and the connection-based parallel processing technique. Briefly, this method is a technique of removing the DNS search request from the mobile terminal when accessing the web content by converting the host name existing in all URLs of the web content into an IP address and transmitting it to the mobile terminal.

To this end, all host names in the resultant content for the HTTP message requested by the mobile terminal are converted to IP addresses and transmitted at the initial point. In addition, it is possible to maximize the caching effect and the concurrent user throughput by combining the virtual connection maintenance method among the preceding technical techniques in maintaining the HTTP proxy server used when accessing a specific IP address-based URL.

22 is a diagram illustrating a web document merging method through web parsing for improving web content download speed on a mobile terminal of a system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment according to an embodiment of the present invention. Detailed drawing.

As mentioned earlier, the URL Compressor, DNS Search Time Elimination Technique, and Virtual Connection Maintenance Based Parallel Processing Technique are used only in terms of transmission speed between the mobile terminal and the web server. The web content merging-based adaptation improvement method described in the above drawings is a technique capable of simultaneously satisfying two purposes of improving transmission speed and improving web content presentation.

This approach basically reduces the number of web server accesses on the handset. When the HTTP request message is received at the mobile web gateway server at the first time point, the gateway server merges the web content in a manner that the mobile terminal can understand and transmits the merged result. If the mobile terminal supports MIME-based web content merging, MIME encoding is used to transfer attachments from Internet mail. Merge using the same compression method as Tar, which merges multiple files into one, and merges into rasterized structures if it supports raster image level parallelism.

In addition, the optimization method can be used to maximize the merging effect. The techniques that can be used are XHTML optimization, which is the result of HTML validation for the convenience of HTML parsing on a mobile terminal, optimization techniques that result from applying CSS to HTML, and optimization techniques that remove margins or unnecessary tags. Can be. In addition, to optimize CSS, REL style substitution method that converts CSS existing outside HTML document into internal area, Import substitution method that converts CSS existing as external CSS area into internal area by import statement in CSS, and after applying CSS For example, an unused rule elimination technique may be used to remove unused CSS rules in advance. For script optimization, Script SRC replacement method that converts script object existing outside HTML into internal area by Script SRC and SCRIPT preprocessing method that reflects the result of preprocessing or preexecution of script in HTML document in advance Can be. For the optimization of the image, after combining all the used images into a position on the layout result and converting them into a single image and compressing them, if the physical size is larger than the JPEG compression technique and the actual image size, the image is reduced. Scaling techniques can be utilized. Preprocessing-based optimization can be used to merge the results of XSLT-related processing primarily by preprocessing and merging the results of DOM interfaces in HTML other than JavaScript. This optimization technique may be implemented by the function of the analysis unit already mentioned in the embodiment.

In addition, the merging techniques mentioned above may be operated in one or more ways, and the merging method may be dynamically managed by a request of a mobile web gateway server manager and a mobile terminal application.

Those skilled in the art to which the present invention pertains as described above may understand that the present invention may be implemented in other specific forms without changing the technical spirit or essential features of the present invention. Therefore, the above-described embodiments are to be understood as illustrative in all respects and not restrictive.

The scope of the invention is indicated by the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the invention. do.

As described above, the system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment of the present invention,

In addition to the effect of effectively browsing the web contents on the wired Internet on the mobile terminal, the mobile web accessibility improvement method is a solution through services and products on the gateway unlike the existing method of improving the mobile terminal application. It can reduce the overhead for installation and provide savings of computing power such as power of the portable terminal.

In addition, it is possible to provide the user with the efficiency and the economic effect because the reflection of the constantly changing and evolving web related technology can be supported through the mobile web gateway server rather than the portable terminal.

The present invention may be embodied in other specific forms without departing from the scope or essential features of the invention. The above-described embodiments are illustrative in all respects and should not be interpreted as limiting. Accordingly, the scope of the invention is defined by the appended claims rather than the foregoing description. All changes that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims (24)

delete A mobile terminal for viewing contents provided by a web server; In a system for improving the web browsing performance of a mobile terminal in a wireless wide area network environment comprising a web server for providing content to the mobile terminal, Based on WML, XHTML, modified HTML, rasterized image or recognizable format of specific viewer It is configured to include a mobile web gateway server that supports The mobile web gateway server, A terminal information management unit for managing information of the portable terminal and application information present on the portable terminal; A conversion process means for performing a conversion process and sending a final result message to the mobile terminal; A system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment, characterized in that it comprises a gateway interface for the communication between the mobile terminal and the mobile web gateway server. A mobile terminal for viewing contents provided by a web server; In a system for improving the web browsing performance of a mobile terminal in a wireless wide area network environment comprising a web server for providing content to the mobile terminal, Based on WML, XHTML, modified HTML, rasterized image or recognizable format of specific viewer It is configured to include a mobile web gateway server that supports The mobile web gateway server, A terminal information management unit for managing information of the portable terminal and application information present on the portable terminal; A conversion process means for performing a conversion process and sending a final result message to the mobile terminal; A gateway interface unit responsible for communication between the mobile terminal and the mobile web gateway server; Improved web browsing performance through a mobile web gateway server in a wireless wide area network environment, characterized in that it comprises a dynamic compression to compress to reduce the transmission capacity of the web content transmitted to the mobile terminal to use a low transmission bandwidth . The method of claim 2 or 3, The conversion process means, A collection unit for input / output of additional web content based on the first HTTP request message transmitted from the gateway interface unit or required by the conversion unit and the analysis unit; A conversion unit for analyzing the web content according to the MIME type of the web content collected by the collection unit and performing additional collection if necessary, and sending the final result message to the mobile terminal when the collection and analysis is completed. An analysis unit which passes the analysis results to the conversion unit for calling, Web browsing performance through a mobile web gateway server in a wireless broadband network environment, characterized in that it comprises a conversion unit for generating a result to be transmitted to the final mobile terminal through processing on the HTML DOM or XML DOM generated by the analysis unit Improvement system. The method of claim 4, wherein The collection unit, A cache manager that checks whether the cache exists based on the HTTP request message and manages the web contents collected according to the HTTP request message; DNS manager responsible for DNS discovery, HTTP client that is in charge of communication based on HTTP protocol, System for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment, characterized in that it comprises a TCP socket management unit for managing the actual communication input and output through TCP / IP. The method of claim 4, wherein The analysis unit, A MIME type analysis unit analyzing the web content according to the MIME type of the web content collected through the collection unit; An SGML parser that interprets the HTML DTDs distributed by the W3C to form rules for parsing HTML; An HTML validity processor for processing the validity of HTML based on a rule formed by the SGML parser; An HTML parser that parses HTML, An XML parser for parsing XML by parsing an external DTD; A CSS parser that parses the collected CSS by requesting the collection unit if an external CSS object exists, A CSS rule processor that applies CSS rules to the validated HTML tags by reconstructing the priority of CSS rules when the analysis is completed through the CSS analyzer; A JavaScript interpreter that translates JavaScript syntax, Web browsing performance improvement system through a mobile web gateway server in a wireless broadband network environment, characterized in that it comprises an image analyzer for analyzing the image. The method of claim 4, wherein The analysis unit, In the verified situation, the structure of the HTML document is a DOM structure, and the type of input data of the initial analysis unit, the JavaScript, or XSLT, the DOM may be represented as an XML DOM instead of the HTML DOM. Improved web browsing performance through mobile web gateway server The method of claim 4, wherein The conversion unit, A conversion process generation unit for determining a type of a result to be transmitted to the mobile terminal based on the terminal information of the mobile terminal collected by the mobile terminal at the first time and the application information present on the terminal; A layout processing unit which performs a layout process; A rasterizing processing unit which performs a processing process for performing rasterization based on simple analysis without performing a layout process on a mobile terminal; A vectorizing processor for performing a processing process of vectorizing the laid-out result again; A web browsing performance improvement system using a mobile web gateway server in a wireless wide area network environment, characterized in that it comprises a conversion result management unit for managing the conversion result format. The method of claim 8, The conversion process generating unit, Markup and text data format conversion unit for converting the markup-based web content to the same or modified Markup and delivered, MHTML format conversion unit that performs the merging process when merging the conversion result regardless of the conversion format, A raster image format conversion unit for performing a merging process so as to be represented as a set of points on a screen; A system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment, comprising: a vector data format conversion unit configured to perform a processing process for generating a final result with a expressed markup at a formatting level. The method of claim 3, wherein The dynamic compression unit, A dynamic compression interface that receives the HTML DOM or the XML DOM through the conversion process means or receives the conversion result format; A lossy compression processor that processes compression in a lossy area such as an image, A lossless compression processor which processes compression in a lossless area such as text data, Represents all the link URLs in a web document as a single piece of information in a random web browsing process, using a single mapped index in areas where small amounts of information are needed, and restoring the original information from the single index in actual processing. URL compression processing unit, System for improving web browsing performance through a mobile web gateway server in a wireless broadband network environment, characterized in that it comprises a dynamic decompression interface unit for reconstructing the index-based URL information back to the first URL information. A mobile terminal for viewing contents provided by a web server; In a system for improving the web browsing performance of a mobile terminal in a wireless wide area network environment comprising a web server for providing content to the mobile terminal, Based on WML, XHTML, modified HTML, rasterized image or recognizable format of specific viewer It is configured to include a mobile web gateway server that supports The mobile web gateway server, Web browsing performance through a mobile web gateway server in a wireless broadband network environment, characterized in that it is configured between the web server and the mobile terminal to merge the web objects existing separately on the web server into one or a plurality of contents to be transmitted to the mobile terminal. Improvement system. The method of claim 11, The merging is, A system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment using a MIME encoding method. The method of claim 11, The merging is, A system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment, using TAR or GZIP compression. The method of claim 11, The merging is, A system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment, characterized by converting a rasterized image in order to reduce data processing time for rasterizing a corresponding screen in a mobile terminal. The method of claim 11, The merging is, A system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment, characterized by performing optimization for each web object. The method of claim 15, The optimization is A system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment, characterized in that validity of HTML is converted to XHTML. The method of claim 15, The optimization is In order to reduce the data processing time for the layout by analyzing the corresponding information in the mobile terminal, the mobile terminal is analyzed through the mobile web gateway server in the wireless wide area network environment, which includes the absolute coordinates or the width and height. Web browsing performance improvement system. The method of claim 15, The optimization is A system for improving web browsing performance through a mobile web gateway server in a wireless broadband network environment, characterized by removing CSS rules by checking the validity of CSS documents. The method of claim 15, The optimization is A system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment, characterized in that the image is finally adjusted to a size to be shown and merging all used images into a single image. The method of claim 15, The optimization is A system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment, characterized in that the image is separated and transmitted sequentially based on a page of a specific size in order to reduce the transmission capacity of the rasterized web contents. A mobile terminal for viewing contents provided by a web server; In a system for improving the web browsing performance of a mobile terminal in a wireless wide area network environment comprising a web server for providing content to the mobile terminal, Based on WML, XHTML, modified HTML, rasterized image or recognizable format of specific viewer It is configured to include a mobile web gateway server that supports The mobile web gateway server, A web browsing performance improvement system using a mobile web gateway server in a wireless wide area network environment, which uses a virtual HTTP connection maintaining method and a virtual HTTP connection based pipelining method to reduce web document collection time in a mobile terminal. A mobile terminal for viewing contents provided by a web server; In a system for improving the web browsing performance of a mobile terminal in a wireless wide area network environment comprising a web server for providing content to the mobile terminal, Based on WML, XHTML, modified HTML, rasterized image or recognizable format of specific viewer It is configured to include a mobile web gateway server that supports The mobile web gateway server, A system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment, characterized in that all web URLs are changed to IP addresses to reduce DNS search time in a mobile terminal. A mobile terminal for viewing contents provided by a web server; In a system for improving the web browsing performance of a mobile terminal in a wireless wide area network environment comprising a web server for providing content to the mobile terminal, Based on WML, XHTML, modified HTML, rasterized image or recognizable format of specific viewer It is configured to include a mobile web gateway server that supports The mobile web gateway server, A system for improving web browsing performance through a mobile web gateway server in a wireless wide area network environment, characterized by converting all web links into an arbitrary hash in order to reduce the size of HTTP link information in a mobile terminal. The method of claim 2 or 3, The gateway interface unit, An HTTP request receiver for receiving an HTTP request message from a mobile terminal, A format conversion rule management unit for managing format conversion rules according to the mobile terminal information and the mobile terminal application information; System for improving web browsing performance through a mobile web gateway server in a wireless broadband network environment, characterized in that it comprises an HTTP response transmitting unit for transmitting the result converted by the conversion processing.

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