US20100223355A1 - Method for page redirection and WAP gateway - Google Patents

Method for page redirection and WAP gateway Download PDF

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Publication number
US20100223355A1
US20100223355A1 US12/779,851 US77985110A US2010223355A1 US 20100223355 A1 US20100223355 A1 US 20100223355A1 US 77985110 A US77985110 A US 77985110A US 2010223355 A1 US2010223355 A1 US 2010223355A1
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Prior art keywords
page
redirection
user terminal
wap gateway
requested
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US12/779,851
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English (en)
Inventor
Zanfeng Yang
Xuri Liu
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Assigned to HUAWEI TECHNOLOGIES CO., LTD. reassignment HUAWEI TECHNOLOGIES CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LIU, XURI, YANG, ZANFENG
Publication of US20100223355A1 publication Critical patent/US20100223355A1/en
Priority to US13/731,360 priority Critical patent/US8918476B2/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/04—Protocols specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/56—Provisioning of proxy services
    • H04L67/563—Data redirection of data network streams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/56—Provisioning of proxy services
    • H04L67/565—Conversion or adaptation of application format or content
    • H04L67/5651—Reducing the amount or size of exchanged application data

Definitions

  • the present disclosure relates to the field of communications, and more particularly to the technology for page redirection.
  • a user terminal can initiate a page request to a WAP gateway through a wireless interface.
  • the WAP gateway requests the page requested by the user terminal from a Service Provider (SP), and returns the page obtained from the SP to the user terminal.
  • SP Service Provider
  • the position of the page requested by the user terminal may change, for example, the page requested by the user terminal was originally located in a server A, but now is redirected to a server B. Therefore, at this time, the user terminal needs to perform a page redirection to acquire the desired page.
  • the user terminal initiates the page request to the WAP gateway through the wireless interface, the request carrying the URL information, where the URL information is about the page when the page is located in the server A.
  • the WAP gateway acquires the page corresponding to the URL information from the server A of the SP, and directly returns the page to the user terminal.
  • the page acquired by the user terminal from the server A may contain redirection information, requiring the user terminal to reacquire the page from the server B.
  • the user terminal performs the page redirection so as to acquire the desired page.
  • the inventor of the present disclosure has found that according to the conventional art, the time delay from the initiation of the request by the user terminal to the acquisition of the final page is pretty long. This is because there could be more multiple redirections for the page accessed by the user terminal. That is, multiple redirection interaction operations are needed between the user terminal and the SP, while the wireless interface transmission between the user terminal and the WAP gateway needs a longer time delay. Therefore, multiple redirections between the user terminal and the SP make the time delay from the initiation of the request by the user terminal to the acquisition of the final page relatively long.
  • the time delay for the user terminal to acquire the final page is related to the number of times of redirection: the more the number of times of redirection, the longer the time delay.
  • the total time from requesting “house and car*people forum” by the user terminal to acquiring the page is 8.3 s, where four redirections take 5 s and each redirection approximately takes about is, and displaying the contents on the page of “house and car*people forum” takes 3 s.
  • the operation of multiple redirections is the main reason for effecting page refreshment.
  • the main technical problem to be solved by an embodiment of the present disclosure is to provide a method for page redirection and to provide a WAP gateway, which reduces the time delay the terminal may experience when acquiring pages.
  • an embodiment of present disclosure provides a method for page redirection, including: requesting, by a WAP gateway, a page requested by a user terminal from a service provider when receiving the page request from the user terminal; and when a page returned by the service provider satisfies a page redirection criterion, performing, by the WAP gateway, a page redirection, and returning the page obtained after the redirection to the user terminal.
  • An embodiment of the present disclosure further provides a WAP gateway, including: a requesting module, configured to request, when receiving a page request from a user terminal, a page requested by the user terminal from a service provider, and configured to receive a page returned by the service provider; a first determining module, configured to determine, after the requesting module receives the page returned by the service provider, whether the page returned by the service provider satisfies the page redirection criterion; a redirecting module, configured to perform a page redirection when the first determining module determines that the page returned by the service provider satisfies the page redirection criterion; and a sending module, configured to return the page obtained after the redirection by the redirecting module to the user terminal.
  • a requesting module configured to request, when receiving a page request from a user terminal, a page requested by the user terminal from a service provider, and configured to receive a page returned by the service provider
  • a first determining module configured to determine, after the requesting module receive
  • the WAP gateway requests, when receiving the page request from the user terminal, the page requested by the user terminal from the SP, and when the page returned by the SP satisfies the page redirection criterion, the WAP gateway rather than the user terminal performs the page redirection, and returns the page obtained after the redirection to the user terminal.
  • the WAP gateway will perform the page redirection, rather than the user terminal initiating the page redirection.
  • Such configuration may reduce the occupation of Um Interface resource between the WAP gateway and the user terminal, thereby reducing the time delay the terminal experiences when acquiring pages, so as to increase the customer satisfaction and to improve the efficiency of refreshing pages.
  • the page redirection initiated by the user terminal needs to use a wireless network bandwidth and it is necessary for the user terminal to have the function of the page redirection
  • the page redirection performed by the WAP gateway rather than the user terminal can further reduce the use of the wireless network bandwidth, so as to lower the mobile comprehensive purchase cost, reduce the dependence on the user terminal and decrease complaints from the user.
  • FIG. 1 is a schematic diagram illustrating the flow of a method for page redirection according to an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram illustrating a specific flow of a method for page redirection according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram illustrating a specific flow of a method for page redirection according to an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram illustrating a specific flow of a method for page redirection according to an embodiment of the present disclosure
  • FIG. 5 is a schematic diagram illustrating a specific flow of a method for page redirection according to an embodiment of the present disclosure
  • FIG. 6 is a schematic diagram illustrating a specific flow of a method for page redirection according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram illustrating a specific configuration of a WAP gateway according to an embodiment of the present disclosure.
  • FIG. 1 is a schematic diagram illustrating the flow of a method for page redirection according to an embodiment of the present disclosure.
  • the WAP gateway requests, when receiving the page request from the user terminal, the page requested by the user terminal from the SP.
  • the WAP gateway taking the place of the user terminal, performs the page redirection, and returns the page obtained after the redirection to the user terminal.
  • the WAP gateway receives the page request from the user terminal, and requests the page requested by the user terminal from the SP according to the page request of the user terminal.
  • the user terminal when it needs to access a certain page, the user terminal sends the page request for this page to the WAP gateway through a wireless interface. After receiving the page request, the WAP gateway requests, according to URL information carried in the request, the page requested by the user terminal from the SP.
  • step 120 the WAP gateway determines whether the page returned by the SP satisfies the page redirection criterion, and if the page satisfies the page redirection criterion, the process proceeds to step 130 ; if the page does not satisfy the page redirection criterion, the process proceeds to step 140 .
  • the WAP gateway After the WAP gateway requests the page from the SP according to the URL information carried in the page request of the user terminal, the SP returns the page corresponding to the URL information to the WAP gateway.
  • the WAP gateway parses the page returned by the SP, and if the page returned by the SP satisfies the page redirection criterion, it indicates that the page for which the user terminal expects to acquire is no longer located in the original server, and that the page redirection is needed; if the page returned by the SP does not satisfy the page redirection criterion, it indicates that the page for which the user terminal expects to acquire is still located in the original server, and that the page returned by the SP is the desired page of the user terminal.
  • the page redirection criterion may be that the page contains the redirection serial status codes indicating that a redirection is needed, or that the page contains an “onenterforward” mark.
  • the status codes are redirection serial status codes, it indicates that the redirection is needed for the page; as for Wireless Markup Language (WML) pages, if the page contains the “onenterforward” mark, it indicates that the redirection is needed for the page. Therefore, the criteria for determining the redirection according to the embodiment are applicable not only for general pages but also for WML pages.
  • the page returned by the SP contains redirection serial status codes such as 300 , 301 , 302 , 303 , 305 and 307 , or the page returned by the SP is the WML page which contains the “onenterforward” mark.
  • the WAP gateway determines that the page returned by the SP satisfies the page redirection criterion, and that the page redirection is needed, that is to proceed to step 130 .
  • the WAP gateway determines that the page returned by the SP does not satisfy the page redirection criterion, and that the page redirection is not needed, that is to proceed to step 140 .
  • step 130 after determining that the page returned by the SP satisfies the page redirection criterion and that the page redirection is needed, the WAP gateway, taking the place of the user terminal, performs the page redirection, and returns the page obtained after the redirection to the user terminal.
  • the WAP gateway may perform the page redirection according to redirection information carried in the page returned by the SP which satisfies the page redirection criterion, and returns the page obtained after the redirection to the user terminal.
  • the WAP gateway When the page requested by the user terminal needs to be redirected, the WAP gateway will perform the page redirection, rather than the user terminal initiating the page redirection. Such configuration may reduce air interface interaction between the WAP gateway and the user terminal, thereby reducing the time delay the terminal experiences when acquiring pages, so as to increase the customer satisfaction and to improve the efficiency of refreshing pages. Moreover, because the page redirection initiated by the user terminal needs to use a wireless network bandwidth and it is necessary for the user terminal to have the function of the page redirection, the page redirection performed by the WAP gateway rather than the user terminal can further reduce the use of the wireless network bandwidth, so as to lower the mobile comprehensive purchase cost, reduce the dependence on the user terminal and decrease complaints from the user.
  • step 140 after determining that the page returned by the SP does not satisfy the page redirection criterion and that the page redirection is not needed, the WAP gateway directly sends the page returned by the SP to the user terminal, so that the user terminal may acquire the desired page.
  • FIG. 2 is a schematic diagram illustrating a specific flow of a method for page redirection according to an embodiment of the present disclosure.
  • This embodiment is an implementation of the embodiment as shown in FIG. 1 .
  • the WAP gateway further needs to retain “Cookie” information included in the page returned by the SP.
  • step 201 the user terminal initiates the page request to the WAP gateway, the URL of the page requested to be accessed is http://wap.monternet.com/redirect.wml.
  • step 202 after the WAP gateway receives the page request, it can be aware that according to URL information in the request, the page requested by the user terminal is in the Monternet. Therefore, the request is forwarded to the Monternet, to request acquisition of the page requested by the user terminal.
  • the WAP2.0 type user terminal may support the WML page, while the WAP1.x type user terminal does not support the WML page. Therefore, if the user terminal initiating the page request is a type of WAP1.x, the WAP gateway may choose not to distribute the WML page to the user terminal.
  • the WAP gateway retains the “Cookie” information included in the page returned by the SP. Therefore, when the WAP gateway needs to request the acquired page from the SP, the requested page can be successfully acquired according to the retained “Cookie” information.
  • the specific flow will be described by the following steps 207 - 214 .
  • step 207 the user terminal initiates the page request to the WAP gateway, the URL of the page requested to be accessed is http://wap.monternet.com/news/2.wml.
  • step 210 the WAP gateway distributes the WML page returned by the Monternet to the user terminal.
  • step 211 the user terminal initiates the page request to the WAP gateway, the URL of the page requested to be accessed is http://wap.sina.com/2.wml.
  • step 214 the WAP gateway distributes the WML page returned by Sina to the user terminal.
  • steps 207 - 210 describe the flow of the user terminal accessing the page with URL as http://wap.monternet.com/news/2.wml; steps 211 - 214 describe the flow of the user terminal accessing the page with URL as http://wap.sina.com/2.wml.
  • the WAP gateway successfully acquires the pages from the SP through the retained “Cookie” information and distributes them to the user terminal.
  • the HTTP protocol is a stateless protocol, so the “Cookie” information plays the role of managing session status correspondingly.
  • the SP determines whether the request of the user is valid or not according to the “Cookie” information. For example, if a certain user terminal accesses a website (such as Monternet), the SP will first set a Cookie for the user terminal. Within the period of validity of the Cookie the user terminal needs to carry the Cookie when accessing other catalogues or files in the website; otherwise, the page stays on the home page all the time and the user terminal cannot enter any subsequent directory. Moreover, some websites can set some personalized pages (such as language settings) for a certain user terminal. If the user terminal needs to access the website again within the period of validity of the Cookie, the user terminal can re-access the website according to the “Cookie” information, with no need of resetting the page.
  • a website such as Monternet
  • some websites may require the user to input an account ID, a password, and so on in access.
  • the websites may set a Cookie for the user, so that when accessing the website within the period of validation of the Cookie again, the user does not need to again input the account ID, the password and so on.
  • the “Cookie” information of webpage retained by the WAP gateway is with respect to one terminal. Therefore, there is a plurality of ways in implementation, for example, the “Cookie” information is retained in a memory or a data base, etc.
  • FIG. 3 is a schematic diagram illustrating a specific flow of a method for page redirection according to an embodiment of the present disclosure.
  • This embodiment is an implementation of the embodiment as shown in FIG. 1 .
  • the WAP gateway further needs to change relative URL information in the page obtained after the redirection into absolute URL information.
  • step 301 the user terminal initiates the page request to the WAP gateway, the URL of the page requested to be accessed is http://wap.monternet.com/redirect.wml.
  • step 302 after the WAP gateway receives the page request, according to the URL information in the request it can be aware that the page requested by the user terminal is located in the Monternet. Therefore, the request is forwarded to the Monternet, to request acquisition of the page requested by the user terminal.
  • the Monternet returns the redirected page.
  • the Monternet After the Monternet receives the page request forwarded by the WAP gateway, it can be aware that the page for which the user terminal expects to acquire has been changed into Sina. Therefore, the Monternet returns the redirect page to the WAP gateway, where the redirected page contains the information which needs to be redirected to http://wap.sina.com/sports.wml.
  • step 304 after receiving the redirected page, the WAP gateway processes the redirected page. Specifically, after the WAP gateway receives the redirected page, by parsing the redirected page it can be aware that the page satisfies the page redirection criterion and needs to be redirected to http://wap.sina.com/sports.wml. Therefore, the WAP gateway rather than the user terminal performs the page redirection, and redirects the page to http://wap.sina.com/sports.wml.
  • Sina returns the WML page to the WAP gateway.
  • the WAP gateway determines whether the WML page returned by Sina contains the relative URL information; and if yes, the URL information is changed into the absolute URL information.
  • the WML page returned by Sina contains the relative URL information: ./basketball.wml, and thus the WAP gateway needs to change the relative URL information into the absolute URL information, that is, to change ./basketball.wml into http://wap.sina.com/basketball.wml. Thereafter, the WML page in which the URL information has been changed is sent to the user terminal.
  • step 307 the user terminal accesses the page specified by the absolute URL. That is, the user terminal initiates the page request to the WAP gateway, the URL of the page requested to be accessed is http://wap.sina.com/basksetball.wml.
  • step 308 after the WAP gateway receives the page request, according to the URL information in the request it can be aware that the page requested by the user terminal is located in Sina. Therefore, the request is forwarded to Sina, to request acquisition of the page requested by the user terminal.
  • Sina returns the requested WML page to the WAP gateway.
  • step 310 after receiving the WML page returned by Sina, the WAP gateway returns the page to the user terminal.
  • the WAP gateway needs to change the relative URL information into the absolute URL information, so as to ensure that the subsequent user terminal access can reach the accurate page.
  • FIG. 4 is a schematic diagram illustrating a specific flow of a method for page redirection according to an embodiment of the present disclosure. On the basis of the embodiment as shown in FIG. 1 , this embodiment further adds the step of determining whether the page requested by the user terminal is a download page or a page configured to not need the redirection.
  • Step 410 and step 420 are similar to step 110 and step 120 , respectively, and are not repeated here for brevity.
  • step 420 If the WAP gateway determines that the page returned by the SP satisfies the page redirection criterion in step 420 , the process proceeds to step 430 ; if not, the process proceeds to step 460 .
  • step 430 the WAP gateway determines whether the page requested by the user terminal is a download page or a page configured to not need the redirection; and if the page requested by the user terminal is a download page or a page configured to not need the redirection, the process proceeds to step 440 ; if the page requested by the user terminal is not a download page or a page configured to not need the redirection, the process proceeds to step 450 .
  • the WAP gateway can determine whether the page requested by the user terminal is a download page or a page configured to not need the redirection.
  • the WAP gateway can determine whether the page requested by the user terminal is a download page or a page configured to not need the redirection, and if the page requested by the user terminal is a download page or a page configured to not need the redirection, the process proceeds to step 440 , where the page returned by the SP is directly sent to the user terminal and the page redirection is performed by the user terminal; if the page requested by the user terminal is not a download page or a page configured to not need the redirection, the process proceeds to step 450 , where the WAP performs the page redirection rather than the user terminal, and returns the page obtained after the redirection to the user terminal. Step 450 is similar to step 130 .
  • step 420 If the WAP gateway determines that the page returned by the SP does not satisfy the page redirection criterion in step 420 , the process proceeds to step 460 , where the page returned by the SP is directly sent to the user terminal, so that the user terminal acquires the desired page. This step is similar to step 140 .
  • the WAP gateway needs to determine whether the page requested by the user terminal is a download page or a page configured to not need the redirection, so as to solve the problem that the user terminal cannot identify the file when the page requested by the user terminal is a download page or a page configured to not need the redirection.
  • a black list and white list of URL list may be set in the WAP gateway, where the URL in the white list is the page which needs to be redirected by the WAP gateway in place of the user terminal, and the URL in the black list is the page which prohibits the WAP gateway from performing the redirection in place of the user terminal.
  • a fuzzy matching is supported.
  • black and white lists of the filename suffix of the redirected URL are set in the WAP gateway, where the filename suffix in the white list is the page which needs to be redirected by the WAP gateway, and the filename suffix in the black list is the page which prohibits the WAP gateway from performing the redirection in place of the user terminal.
  • a complete matching is adopted.
  • FIG. 5 is a schematic diagram illustrating a specific flow of a method for page redirection according to an embodiment of the present disclosure. On the basis of the embodiment as shown in FIG. 4 , this embodiment further solves the problem of a timer in page redirection.
  • Step 510 to step 540 are similar to step 410 to step 440 entirely, and are not repeated here for brevity.
  • step 550 the WAP gateway determines whether the page requested by the user terminal contains a timer. That is, after determining that the page requested by the user terminal is not a download page or a page configured to not need the redirection, the WAP gateway further needs to determine whether the page contains a timer, and if yes, the process proceeds to step 560 ; if not, the process proceeds to step 570 .
  • step 560 the WAP gateway starts the timer and waits for the timeout. This is because that if the page requested by the user terminal contains the timer, it indicates that the page requested by the use terminal needs to wait for a period of time before the redirection. Therefore, it is necessary for the WAP gateway to wait for the timeout of the timer before starting the page redirection, so as to ensure that the page requested by the user terminal can be successfully acquired.
  • step 570 the WAP gateway, taking the place of the user terminal, performs the page redirection, and returns the page obtained after the redirection to the user terminal. This step is similar to step 450 .
  • step 520 If the WAP gateway determines that the page returned by the SP does not satisfy the page redirection criterion in step 520 , the process proceeds to step 580 , where the page returned by the SP is directly sent to the user terminal, so that the user terminal acquires the desired page. This step is similar to step 460 .
  • the sixth embodiment of the present disclosure relates to a method for page redirection and is similar to the fourth embodiment.
  • the difference is as follows.
  • the WAP gateway determines whether the page requested by the user terminal is a download page or a page configured to not need the redirection, and if the page requested by the user terminal is not a download page or a page configured to not need the redirection, the WAP gateway, taking the place of the user terminal, performs the page redirection; and if the page requested by the user terminal is a download page or a page configured to not need the redirection, the WAP gateway directly sends the page satisfying the page redirection criterion to the user terminal, the user may perform the page redirection by himself or herself, so as to solve the problem that the user terminal cannot identify the downloaded file.
  • the determination is made regarding whether the page is a download page or a page configured to not need the redirection, and if the page requested by the user terminal is not a download page or a page configured to not need the redirection, the page obtained after the redirection is returned to the user terminal; and if the page requested by the user terminal is a download page or a page configured to not need the redirection, the page satisfying the page redirection criterion is sent to the user terminal, and the user may perform the page redirection by himself or herself, to solve the problem that the user terminal cannot identify the download file.
  • FIG. 6 is a schematic diagram illustrating a specific flow of a method for page redirection according to an embodiment of the present disclosure.
  • step 601 the user terminal initiates the page request to the WAP gateway, the URL of the page requested to be accessed is http://kjava.monternet.com/download.wml.
  • step 602 after the WAP gateway receives the page request, according to the URL information in the request it can be aware that the page requested by the user terminal is located in the Monternet. Therefore, the request is forwarded to the Monternet, to request acquisition of the page requested by the user terminal.
  • step 603 the Monternet returns the redirected page which contains the link of the file to be downloaded.
  • the Monternet After the Monternet receives the page request forwarded by the WAP gateway, it can be aware that the page for which the user terminal expects to acquire has been changed into Sina. Hence, the Monternet returns the redirected page to the WAP gateway.
  • the WAP gateway processes the redirected page. Specifically, after the WAP gateway receives the redirected page, by parsing the redirected page it can be aware that the page satisfies the page redirection criterion and needs to be redirected to http://wap.sina.com/1.jar. Therefore, the WAP gateway, taking the place of the user terminal, performs the page redirection, and redirects the page to http://wap.sina.com/1.jar.
  • Sina returns the page redirected by the WAP gateway to the WAP gateway.
  • the WAP gateway determines whether the page is a download page or a page configured to not need the redirection.
  • the WAP gateway can determine whether the page is a download page or a page configured to not need the redirection according to the Multimedia Internet Mail Extend (MIME) type of the page. If it is determined that the page is not a download page or a page configured to not need the redirection, the page obtained after the redirection is returned to the user terminal, and the flow ends. If it is determined that the page is a download page or a page configured to not need the redirection, the process proceeds to step 607 . In this embodiment it is determined that the page is a download page or a page configured to not need the redirection, and thus the process proceeds to step 607 .
  • MIME Multimedia Internet Mail Extend
  • step 607 the WAP gateway retains the page acquired from Sina, and returns the redirect page acquired from the Monternet to the user terminal.
  • step 608 after the user terminal receives the redirected page, by parsing the redirected page it can be aware that the page satisfies the page redirection criterion and needs to be redirected to http://wap.sina.com/1.jar. Therefore, the user terminal performs the page redirection and redirects the page to http://wap.sina.com/1.jar.
  • step 609 after receiving the page redirection request from the user terminal, according to the URL in this request the WAP gateway can determine that this page has located in the WAP gateway, and can directly return the page to the user terminal.
  • the WAP gateway may perform multiple page redirections, that is, through further redirection (a second redirection or even more redirections) after the page is obtained by the first redirection, the WAP gateway can eventually obtain the required page.
  • the method further includes:
  • FIG. 7 is a schematic diagram illustrating a specific configuration of a WAP gateway according to an embodiment of the present disclosure.
  • the WAP gateway includes: a requesting module, configured to request, when receiving a page request from a user terminal, a page requested by the user terminal from a SP, and to receive the page returned by the SP; a first determining module, configured to determine, after the requesting module receives the page returned by the SP, whether the page returned by the SP satisfies the page redirection criterion; a redirecting module, configured to perform, in place of the user terminal, a page redirection when the first determining module determines that the page returned by the SP satisfies the page redirection criterion; and a sending module, configured to return the page obtained after the redirection by the redirecting module to the user terminal.
  • the page redirection criterion is that the page contains redirection serial status codes indicating that a redirection is needed, or that the page contains the “onenterforward” mark, so that the embodiment of the present disclosure is applicable not only for general pages but also for WML pages.
  • the WAP gateway may further include a storing module, configured to retain “Cookie” information included in the page returned by the SP.
  • a storing module configured to retain “Cookie” information included in the page returned by the SP.
  • the requesting module requests the acquired page from the SP according to the “Cookie” information retained by the storing module, so that the page is successfully acquired.
  • the WAP gateway according to this embodiment may further include a URL information changing module, configured to change, when the page obtained after the redirection performed by the redirecting module contains relative URL information, the relative URL information into absolute URL information.
  • the sending module returns the page in which the URL information has been changed to the user terminal, to prevent the problem that access may fail when the user terminal further accesses the redirected page.
  • the WAP gateway may further include a second determining module, configured to determine whether a page requested by the user terminal is a download page or a page configured to not need the redirection.
  • the sending module is further configured to send the page satisfying the page redirection criterion to the user terminal.
  • the second determining module determines, when the first determining module determines the page satisfies the page redirection criterion, whether the page requested by the user terminal is a download page or a page configured to not need the redirection, and if the page requested by the user terminal is not a download page or a page configured to not need the redirection, the second determining module triggers the redirecting module; and if the page requested by the user terminal is a download page or a page configured to not need the redirection, the second determining module triggers the sending module to send the page satisfying the page redirection criterion to the user terminal.
  • the second determining module determines, after the redirecting module performs the redirection, whether a page requested by the user terminal is a download page or a page configured to not need the redirection, and if the page requested by the user terminal is not a download page or a page configured to not need the redirection, the second determining module triggers the sending module to return the page obtained after the redirection to the user terminal; and if the page requested by the user terminal is a download page or a page configured to not need the redirection, the second determining module triggers the sending module to send the page satisfying the page redirection criterion to the user terminal.
  • the URL of the page obtained after the redirection is not consistent with that used when the user terminal initiates the page request. Therefore, the WAP gateway needs to determine whether the page requested by the user terminal is a download page or a page configured to not need the redirection, so as to solve the problem that the user terminal cannot identify the file when the page requested by the user terminal is a download page or a page configured to not need the redirection.
  • the WAP gateway requests, when receiving the page request from the user terminal, the page requested by the user terminal from the SP, and when the page returned by the SP satisfies the page redirection criterion, the WAP gateway, taking the place of the user terminal, performs the page redirection, and returns the page obtained after the redirection to the user terminal.
  • the WAP gateway will perform the page redirection, rather than the user terminal initiating the page redirection.
  • Such configuration may reduce air interface interaction between the WAP gateway and the user terminal, thereby reducing the time delay the terminal experiences when acquiring pages, so as to increase the customer satisfaction and to improve the efficiency of refreshing pages.
  • the page redirection initiated by the user terminal needs to use a wireless network bandwidth and it is necessary for the user terminal to have the function of the page redirection
  • the page redirection performed by the WAP gateway rather than the user terminal can further reduce the use of the wireless network bandwidth, so as to lower the mobile comprehensive purchase cost, reduce the dependence on the user terminal and decrease complaints from the user.
  • the page redirection criterion is that the page contains redirection serial status codes indicating that a redirection is needed, or that the page contains the “onenterforward” mark, so that the embodiment of the present disclosure is applicable not only for general pages but also for WML pages.
  • the WAP gateway retains the “Cookie” information included in the page returned by the service provider, so that the page which has been requested to be acquired from the SP can be acquired successfully.
  • the WAP gateway taking the place of the user terminal, performs the page redirection, if the obtained page contains relative URL information, the relative URL information is changed into absolute URL information and is sent to the user terminal, to prevent the problem that access may fail when the user terminal further accesses the redirected page.
  • the URL of the page obtained after the redirection is not consistent with that used when the user terminal initiates the page request. Therefore, the WAP gateway needs to determine whether the page requested by the user terminal is a download page or a page configured to not need the redirection, so as to solve the problem that the user terminal cannot identify the file when the page requested by the user terminal is a download page or a page configured to not need the redirection.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Information Transfer Between Computers (AREA)
  • Mobile Radio Communication Systems (AREA)
US12/779,851 2007-11-13 2010-05-13 Method for page redirection and WAP gateway Abandoned US20100223355A1 (en)

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CN2007101245148A CN101197843B (zh) 2007-11-13 2007-11-13 页面重定向方法及无线应用协议网关
PCT/CN2008/073035 WO2009067926A1 (fr) 2007-11-13 2008-11-12 Méthode de redirection de pages et passerelle wap

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RU2010123939A (ru) 2011-12-20
ES2414080T3 (es) 2013-07-18
US20130124678A1 (en) 2013-05-16
CN101197843B (zh) 2010-12-01
WO2009067926A1 (fr) 2009-06-04
BRPI0820424A2 (pt) 2015-05-19
US8918476B2 (en) 2014-12-23
EP2205011A1 (fr) 2010-07-07
CN101197843A (zh) 2008-06-11
EP2205011A4 (fr) 2011-02-16
RU2446625C2 (ru) 2012-03-27
EP2205011B1 (fr) 2013-04-03

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