Method and apparatus for identifying individual messages in a single compressed data packet

• US 6,604,149 B1
• Filed: 06/01/2001
• Issued: 08/05/2003
• Est. Priority Date: 09/22/1998
• Status: Expired due to Term

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Deo, Vinay, Kadyk, Don, OʼLeary, Michael J.
• Primary Examiner(s): Jaroenchonwanit, Bunjob
• Application Number:
  US09/872,949
• Time in Patent Office: 795 Days
• Field of Search: 709/247, 709/246, 709/236, 709/231, 370/473, 370/913
• US Class Current: 709/247
• CPC Class Codes: H04L 2212/00 Encapsulation of packets
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/55 Push-based network services
• CPC Class Codes: H04L 69/04 Protocols for data compression, e.g. ROHC
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]

Abstract

A computer readable medium in a computer system has instructions for storing a first and second data packet destined for the same address. The first and second data packets are appended together to produce a merged data packet that is then compressed to produce a compressed data packet. The compressed data packet is then sent to the common address.

Claims

1. A mobile device having a computer-readable medium having computer-executable instructions for performing steps comprising:

receiving an input data packet from a remote source;

making a single determination as to whether to discard the entire input data packet;

decompressing the input data packet based on compression information in the input data packet to produce a decompressed packet;

identifying a plurality of individual data packets in the decompressed packet;

attaching a header with a destination address to each individual data packet; and

storing each of the individual data packets based on destination addresses for the individual data packets.

2. The mobile device of claim 1 wherein each of the individual data packets has the same destination address.

3. The mobile device of claim 2 wherein the input data packet comprises a destination identifier that identifies the destination address of the individual data packets.

4. The mobile device of claim 3 wherein determining whether to discard the entire input data packet comprises determining whether to discard the entire input data packet based on the destination identifier before decompressing the input data packet.

5. The mobile device of claim 4 wherein the mobile device determines whether to discard the input data packet while in a partial wake-up mode.

6. The mobile device of claim 1 wherein at least one destination address indicates a channel on the mobile device.

7. A method of receiving data on a wireless device, the method comprising;

receiving a single input data packet;

determining once for the entire single input data packet that the wireless device is configured to receive the entire single input data packet;

decompressing the single data packet to form a collection of individual data packets;

attaching a header with a destination address to each individual data packet; and

storing the individual data packets on the wireless device.

8. The method of claim 7 wherein determining that the wireless device is configured to receive the single input data packet comprises making the determination while the input device is in a partial wake-up mode.

9. The method of claim 8 further comprising discarding the single input data packet without decompressing the data packet if it is determined that the wireless device is not configured to receive the single input data packet.

10. The method of claim 8 wherein determining that the wireless device is configured to receive the single input data packet comprises, before decompressing the single data packet, examining a destination identified in the single input data packet that indicates at least one destination address for the individual data packets.

11. The method of claim 10 wherein the destination identifier comprises a mobile device address that identifies a particular mobile device.

12. The method of claim 11 wherein the destination identifier further comprises a channel address that identifies a channel within the wireless device.