System and method for delivery of information over narrow-band communications links

• US 6,615,267 B1
• Filed: 06/10/1999
• Issued: 09/02/2003
• Est. Priority Date: 03/13/1997
• Status: Expired due to Term

• Current Assignee: Google Technology Holdings LLC (Alphabet Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Biersach, David, Zurcher, Rodd, Zabolotzky, Scott, Whittington, David, Whalen, Jon S.
• Primary Examiner(s): Powell, Mark R.
• Assistant Examiner(s): Vaughn, Jr., William C.
• Application Number:
  US09/329,691
• Time in Patent Office: 1,545 Days
• Field of Search: 709/229, 709/226, 709/203, 709/219, 709/247, 709/246, 709/242, 709/217, 709/218, 709/225, 709/202, 455/3.01, 455/3.02, 455/403, 455/412, 455/414, 375/219, 375/220, 725/64, 725/81, 340/825.72, 340/7.25, 340/7.28, 340/7.29, 707/9, 707/10, 711/113, 713/201
• US Class Current: 709/229
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/04 specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
• CPC Class Codes: H04L 67/56 Provisioning of proxy services store-and-forward switching systems in data switching networks H04L12/54
• CPC Class Codes: H04L 67/5651 Reducing the amount or size of exchanged application data
• CPC Class Codes: H04L 67/566 Grouping or aggregating service requests, e.g. for unified processing
• CPC Class Codes: H04L 67/5681 Pre-fetching or pre-delivering data based on network characteristics
• CPC Class Codes: H04L 69/08 Protocols for interworking; Protocol conversion
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

System and method for delivery of information over narrow-band communications links. The system has at least a browser (12), a mobile client (10), a fixed server (30) and an origin host (50). The browser (12) requests a resource. The mobile client (10) transmits the request to the fixed server (30). The fixed server (30) retrieves a primary resource from the origin host (50) and any dependent resources. The fixed server (30) transmits the primary resource to the mobile client (10). The mobile client (10) transmits an acknowledgment list to the fixed server (30) requesting certain dependent resources and sends the primary resource to the browser (12). The fixed server (30) transmits the requested dependent resources to the mobile client (10) in one transmission. The mobile client (10) sends the dependent resources to the browser (12) upon request. Thus, only transmitting two round-trips of data across the narrow-band communications link to transfer all the necessary data to create an entire information page reduces the delay significantly.

Claims

1. A wireless network proxy comprising a server part and a client part, the server part comprising:

a first digital processor comprising a resource transceiver and a summary response builder for assembling a plurality of dependent resources pre-fetched from a host into a summary response, the summary response builder having an output;

a first radio transceiver coupled to the output of the summary response builder for sending at least a summary response over a communications link to a browser;

the client part comprising;

the browser;

a second radio transceiver;

a cache; and

a second digital processor having a resource transceiver and an acknowledgment list generator coupled to the cache and the resource transceiver and coupled to the second radio transceiver, the acknowledgment list generator having a comparator comparing received resources with cached resources.

2. The wireless proxy of claim 1, wherein the summary response is a fragmented summary response.

3. The wireless proxy of claim 2, wherein the summary response includes status codes for all dependent resources.