Systems and methods for on-location, wireless access of web content

• US 20020101848A1
• Filed: 12/05/2000
• Published: 08/01/2002
• Est. Priority Date: 12/05/2000
• Status: Abandoned Application

• Current Assignee: Pico Communications, Inc.
• Original Assignee: Pico Communications, Inc.
• Inventors: Lee, Ivan, Rible, Max, Zai, Li Cheng, Pabst, William G.
• Application Number:
  US09/731,240
• Publication Number:
  US 20020101848A1
• Time in Patent Office: Days
• US Class Current: 370/349
• CPC Class Codes: H04L 63/0272 Virtual private networks
• CPC Class Codes: H04L 67/04 specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04W 12/033 of the user plane, e.g. user's traffic
• CPC Class Codes: H04W 12/08 Access security
• CPC Class Codes: H04W 4/02 Services making use of location information
• CPC Class Codes: H04W 4/18 Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support
• CPC Class Codes: H04W 80/12 Application layer protocols, e.g. WAP [Wireless Application Protocol]
• CPC Class Codes: H04W 88/16 Gateway arrangements

Abstract

A wireless network provides one or more local wireless service area where wireless clients are able to access web content from an IP network that includes the Internet. A wireless network that includes wireless gateways, secure link to a WAP gateway via an access server and location-based content offers an infrastructure for providing valued-added features to wireless clients. The valued-added features include providing web content in multiple application protocols and include automatically presenting location-based content when a wireless client attempts to access web content.

Claims

1. A system for serving content residing on an Internet protocol (IP) network to a plurality of wireless client devices in a wireless service area, comprising:

at least one wireless gateway for wirelessly connecting said plurality of wireless client devices to said IP network, said wireless gateway converting between wireless signals and IP packets, wherein each IP packet includes a header specifying a transport protocol, and a destination IP address;

a plurality of content applications, each under a given application protocol, for providing content accessible from said IP network, the content including a first type and a second type;

a content redirector associated with each content application for causing content of a second type to be served when a wireless client device attempts to access content of a first type.

2. A system as in claim 1, wherein said content of the first type includes content of general interest not necessarily specific to a given wireless service area in which a wireless device is operating.

3. A system as in claim 1, wherein said content of the second type includes content specific to a given wireless service area in which a wireless device is operating.

4. A system as in claim 1, wherein said plurality of content applications include Wireless Markup Language (WML) applications under the Wireless Application Protocol (WAP) and the associated transport protocol is User Datagram Protocol (UDP).

5. A system as in claim 1, wherein said plurality of content applications include HyperText Markup Language (HTML) applications under the HyperText Transfer Protocol (HTTP) and the associated transport protocol is Transmission Control Protocol (TCP).

6. A system as in claim 1, wherein said content redirector includes a packet modifier that modifies the destination IP address of packets originating from the wireless client device to point to a server hosting the content of the second type.

7. A system as in claim 1, wherein the content redirector includes a packet modifier that modifies the Uniform Resource Locator of packets originating from the wireless client device to point to the content of the second type.

8. A system as in claim 1, wherein the content redirector includes:

a first packet modifier and a second packet modifier;

said first packet modfier modifying the destination IP address of packets originating from the wireless client device to redirect the packets to said second packet modifier; and

said second packet modifier modifying the redirected packets such that content of the second type is served when a wireless client device originally attempted to access content of a first type.

9. A system as in claim 8, wherein said second packet modifier modifies the Uniform Resource Locator of the redirected packets to point to the content of the second type.

10. A system as in claim 1, wherein

each wireless client device is associated with an identity number;

and

said packet modifier incorporates into the IP packets originating from a wireless client its associated identity number.

11. A system as in anyone of claims 1-10, wherein the IP network includes the Internet.

12. A system as in anyone of claims 1-10, wherein the IP network includes a private segment not publicly accessible.

14. A method as in claim 13, wherein said step of redirecting content includes modifying the destination IP address of packets originating from the wireless client device to point to a server hosting the content of the second type.

15. A method as in claim 13, wherein said step of redirecting content includes modifying the Uniform Resource Locator of packets originating from the wireless client device to point to the content of the second type.

16. A method as in claim 13, wherein said step of redirecting content includes:

modifying the destination IP address of packets originating from the wireless client device to redirect the packets to a predetermined location; and

modifying the redirected packets at the predetermined location such that content of the second type is served when a wireless client device originally attempted to access content of a first type.

17. A method as in claim 16, wherein said step of modifying the redirected packets at the predetermined location includes modifying the Uniform Resource Locator of the redirected packets to point to the content of the second type.

18. A method as in claim 13, wherein each wireless client device is associated with an identity number;

and the step of redirecting content includes modifying the packets originating from the wireless client device to incorporate the identity number associated with the wireless client device.

20. A wireless network, as in claim 19, further comprising:

a packet inspector for inspecting information contained in the IP packets

a set of encryption/decryption rules for prescribing encryption/decryption to a IP packet based on the information contained in the IP packet; and

an encryption decryption engine for executing the encryption/decryption accordingly.

13. A method of serving content residing on an Internet protocol (IP) network to a plurality of wireless client devices in a wireless service area, comprising:

providing at least one wireless gateway for wirelessly connecting said plurality of wireless client devices to said IP network, said wireless gateway converting between wireless signals and IP packets, wherein each IP packet includes a header specifying a transport protocol, and a destination IP address;

providing a plurality of content applications, each under a given application protocol, for providing content accessible from said IP network, the content including a first type and a second type;

redirecting content associated with each content application such that content of a second type is served when a wireless client device attempts to access content of a first type.

19. A wireless network, comprising:

a private segment of an Internet Protocol (IP) network;

a wireless gateway for wirelessly coupling one or more wireless device to said private segment of the IP network so as to convert between wireless signals and IP packets;

a Wireless Application Protocol (WAP) gateway;

an access server for providing the private segment of the IP network access to the Internet and to the WAP gateway; and

a secure connection through the Internet for providing a private link between said private segment of an IP network and said access server.