System for low power operation of wireless LAN interfaces

• US 7,752,330 B2
• Filed: 10/29/2007
• Issued: 07/06/2010
• Est. Priority Date: 04/21/2003
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Clark, Jeffrey W., Olsen, Claus Michael, Narayanaswami, Chandrasekhar, Rosu, Marcel-Catalin
• Primary Examiner(s): Coulter; Kenneth R
• Application Number:
  US11/927,572
• Publication Number:
  US 20080052366A1
• Time in Patent Office: 981 Days
• Field of Search: 709/232, 709/235, 709/236, 709217-219, 709/206, 709/230, 709/203, 455/574, 455/572
• US Class Current: 709/232
• CPC Class Codes: G06F 1/3209 Monitoring remote activity, e.g. over telephone lines or network connections
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/5681 Pre-fetching or pre-delivering data based on network characteristics
• CPC Class Codes: H04L 67/5682 Policies or rules for updating, deleting or replacing the stored data
• CPC Class Codes: H04L 67/59 Providing operational support to end devices by off-loading in the network or by emulation, e.g. when they are unavailable
• CPC Class Codes: H04L 67/62 Establishing a time schedule for servicing the requests
• CPC Class Codes: H04L 69/16 Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
• CPC Class Codes: H04L 69/163 In-band adaptation of TCP data exchange; In-band control procedures
• CPC Class Codes: H04L 69/165 Combined use of TCP and UDP protocols; selection criteria therefor
• CPC Class Codes: H04W 52/0216 using a pre-established activity schedule, e.g. traffic indication frame
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: Y02D 30/00 Reducing energy consumption in communication networks
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A computer program product includes instructions for causing a processor to: alert a client of the configuration of said computer program product; use a memory space for buffering the network application data destined for the client; release the network application data to the client, based on at least one occurrence of a specified condition that promotes energy savings; and purposely delay at least some of said data with an amount of time greater than zero to promote energy savings.

Claims

1. A computer program product embodied on a computer readable storage medium of a proxy server comprising instructions for causing a processor to:

in a communication system comprising a server, a client, and the proxy server, split a transmission control protocol connection between the client and the server into two separate connections;

a client-proxy connection and a proxy-server connection;

alert a client of the proxy server of a configuration of said computer program product;

use a memory space for buffering network application data destined for the client;

release the network application data to the client, based on at least one occurrence of a specified condition that promotes energy savings; and

delay the release of at least some of said data with an amount of time greater than zero to promote energy savings.

2. The computer program product of claim 1, comprising instructions for causing the processor to:

receive configuration instructions specifying the at least one occurrence of a specified condition for release of the network application data;

allocate memory space for storing the configuration instructions;

wherein at least one processor is configured to execute the configuration instructions.

3. The computer program product of claim 1 wherein the specified condition comprises exceeding a buffer threshold.

4. The computer program product of claim 1 wherein the specified condition comprises ending of an application data stream.

5. The computer program product of claim 1 wherein the specified condition comprises receipt of at least one object.

6. The computer program product of claim 1 wherein the specified condition comprises expiration of a specified period of time.

7. The computer program product of claim 1 wherein the network application data comprises one of a group consisting of:

email data;

web page data;

net meeting data;

instant messaging data; and

database synchronization data.

8. The computer program product of claim 1 wherein the proxy server is integrated with an access point for a wireless network.

9. The computer program product of claim 1 wherein the proxy server apparatus is adapted to serve a plurality of clients.

10. The computer program product of claim 1 further comprising an emulation system for emulation of network applications.