Adjustable Download Rate for a Portable Electronic Device

• US 20080119218A1
• Filed: 11/21/2006
• Published: 05/22/2008
• Est. Priority Date: 11/21/2006
• Status: Active Grant

• Current Assignee: Malikie Innovations Limited (Key Patent Innovations Limited)
• Original Assignee: Blackberry Limited
• Inventors: Dumitru, Dan, Stalin, Eshwar, Arora, Rakesh
• Granted Patent: US 8,942,182 B2
• Time in Patent Office: Days
• US Class Current: 455/550.1
• CPC Class Codes: H04L 43/0888 Throughput
• CPC Class Codes: H04L 51/58 Message adaptation for wireless communication
• CPC Class Codes: H04L 67/06 specially adapted for file transfer, e.g. file transfer protocol [FTP]
• CPC Class Codes: H04M 1/7243 with interactive means for internal management of messages
• CPC Class Codes: H04M 2250/64 file transfer between terminals download of applications H04M1/72406; transfer of messages, e.g. SMS, e-mail or MMS H04M1/7243

Abstract

A method for downloading data from a server to a portable electronic device operating on a wireless network includes determining a network speed of the wireless network, setting a chunk size based on the network speed, sending a request to the server including the chunk size and receiving data from the server in chunks having the chunk size.

Claims

1. A method for downloading data from a server to a portable electronic device, said method comprising:

determining a network speed of a wireless network on which said portable electronic device is operating;

setting a chunk size, said chunk size being determined based on said network speed;

sending a request to said server including said chunk size; and

receiving said data from said server in chunks having said chunk size.

2. A method as claimed in claim 1, wherein said chunk size is set to 16K when said wireless network is a GPRS network.

3. A method as claimed in claim 1, wherein said chunk size is set to 32K when said wireless network is selected from the group consisting of:

EDGE, EVDO and UMTS.

4. A method as claimed in claim 1, wherein said data is Universal Content Stream data corresponding to an attachment sent to said portable electronic device in an email message.

5. A method as claimed in claim 1, wherein said data is attachment binary data corresponding to an attachment sent to said portable electronic device in an email message.

6. A method as claimed in claim 4, wherein said request is sent to said server in response to an attachment viewer of said portable electronic device attempting to display said attachment.

7. A method as claimed in claim 6, wherein said server builds a graph structure within said server representing a map of said attachment upon receipt of said request.

8. A method as claimed in claim 7, wherein said graph structure is a Document Object Model.

9. A method as claimed in claim 1, wherein said request includes a <

CS>

tag.

10. A method for requesting and viewing an attachment of an email message in an attachment viewer of a portable electronic device, said method comprising:

sending a request from said portable electronic device to an attachment server in order to view said attachment in said attachment viewer, said request including a chunk size for receiving said attachment;

building a graph structure within said attachment server representing a map of said attachment and encapsulating said graph structure in an attachment viewer readable format; and

sending said attachment in said attachment viewer readable format from said attachment server to said portable electronic device, said attachment being received in chunks having said chunk size;

wherein said chunk size is determined based on a speed of a wireless network on which said portable electronic device is operating.

11. A method as claimed in claim 10, wherein said chunk size is 16K when said wireless network is a GPRS network.

12. A method as claimed in claim 10, wherein said chunk size is 32K when said wireless network is selected from the group consisting of:

EDGE, EVDO, HSDPA and UMTS.

13. A method as claimed in claim 10, wherein said graph structure is a Document Object Model.

14. A method as claimed in claim 13, wherein said attachment viewer readable format is Universal Content Stream format.

15. A portable electronic device operating on a wireless network, said portable electronic device comprising:

an attachment viewer stored on said portable electronic device, said attachment viewer for requesting to view said attachment and providing a chunk size for receiving said attachment; and

an attachment server in communication with said attachment viewer, said attachment server for building a graph structure representing a map of said attachment and sending said attachment to said attachment viewer;

wherein said chunk size is determined based on a speed of said wireless network.

16. A portable electronic device as claimed in claim 15, wherein said chunk size is 16K when said wireless network is a GPRS network.

17. A portable electronic device as claimed in claim 15, wherein said chunk size is 32K when said wireless network is selected from the group consisting of:

EDGE, EVDO, HSDPA and UMTS.