Technique for improving throughput of a gateway interface

• US 6,675,219 B1
• Filed: 11/01/1999
• Issued: 01/06/2004
• Est. Priority Date: 11/01/1999
• Status: Expired due to Term

• Current Assignee: WSOU Investments, LLC (WSOU Holdings, LLC)
• Original Assignee: Nokia Corporation
• Inventors: Leppinen, Mika, Padma, Sachin
• Primary Examiner(s): Thompson, Marc D.
• Application Number:
  US09/431,071
• Time in Patent Office: 1,527 Days
• Field of Search: 370/231, 370/401, 709/238, 709/213, 709/230, 707/10, 715/513, 715/501.1
• US Class Current: 709/230
• CPC Class Codes: H04L 67/04 specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
• CPC Class Codes: H04L 67/2871 Implementation details of single intermediate entities
• CPC Class Codes: H04L 67/564 Enhancement of application control based on intercepted application data
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]

Abstract

A technique for improving throughput of a gateway interface includes: a client, e.g., a wireless client, forwarding a request to a server via the gateway; determining in the server whether the requested content has been validated, and if so, setting a predetermined header to “validated” and forwarding the requested content to the gateway, and if not, either setting the predetermined header to “not validated” or not setting the predetermined header, and forwarding the requested content to the gateway. The gateway determines whether the predetermined header of the forwarded content has been set to “validated,” and if so, forwards the requested content to the client after encoding the validated content, and if not, validates the content and then encodes the validated content and forwards it to the client. In this way, the gateway does not have to needlessly validate requested content which had already been validated.

Claims

1. A method of improving a throughput of a wireless gateway interface comprising the steps of:

(a) receiving a request for content from a mobile client;

(b) determining whether the requested content has been validated against document type definition (DTD), where the DTD defines rules for markup language syntax;

(c) if the content has been validated against the DTD, setting a predetermined header to “

validated” and

forwarding the requested content to the wireless gateway;

(d) if the content has not been validated against the DTD, either setting a predetermined header to “

not validated”

or not setting any validation header, and forwarding the requested content to the wireless gateway;

(e) determining in the wireless gateway whether the forwarded requested content includes the predetermined header that has been set to “

validated;

”

(f) if the content includes the predetermined header that has been set to “

validated,”

forwarding the requested content to the mobile client from the wireless gateway; and

(g) if the content does not include a header that has been set to “

validated,”

validating the content against the DTD and then forwarding the content to the mobile client from the wireless gateway.

2. The method of claim 1, further comprising the step of encoding the validated content in the gateway prior to forwarding the content to the mobile client.

3. The method of claim 2, wherein the predetermined header comprises an HTTP (Hypertext Transfer Protocol) header.

4. The method of claim 3, wherein the HTTP header comprises an Etag header.

5. The method of claim 1, wherein the predetermined header comprises an HTTP (Hypertext Transfer Protocol) header.

6. The method of claim 5, wherein the HTTP header comprises an Etag header.

7. An apparatus for improving throughput of a wireless gateway interface, said apparatus comprising:

a server adapted to receive, via a wireless gateway from a mobile client, a request for content, said server including means responsive to the requested content having been validated against document type definition (DTD), where the DTD defines rules for markup language syntax, for setting a predetermined header on the content to “

validated” and

forwarding the requested content to the wireless gateway, and responsive to the requested content not having been validated against the DTD, for either not setting any validation header on the content or setting a predetermined header on the content to “

not validated,” and

then forwarding the requested content to the wireless gateway; and

a wireless gateway, including means responsive to receipt of content forwarded from said server including a header that has been set to “

validated,”

for forwarding the requested content to the mobile client, and responsive to receipt of content from said server not including a header that has been set to validated, for validating the content against the DTD and then forwarding the content to the mobile client.

8. The apparatus of claim 7, wherein said gateway further includes means for encoding the validated content prior to forwarding the content to the mobile client.

9. The apparatus of claim 8, wherein the predetermined header comprises an HTTP (Hypertext Transfer Protocol) header.

10. The apparatus of claim 9, wherein the HTTP header comprises an Etag header.

11. The apparatus of claim 7, wherein the predetermined header comprises an HTTP (Hypertext Transfer Protocol) header.

12. The apparatus of claim 11, wherein the HTTP header comprises an Etag header.