Byte caching in wireless communication networks

Patent metadata

Field	Value
Publication number	US-10129791-B2
Application number	US-201615133358-A
Country	US
Kind code	B2
Filing date	Apr 20, 2016
Priority date	Aug 31, 2012
Publication date	Nov 13, 2018
Grant date	Nov 13, 2018

Abstract

Various embodiments provide byte caching in wireless communication networks. In one embodiment, a plurality of data packets are received through an internet protocol (IP) data flow established between a wireless communication device and at least one server. Each of the plurality of data packets are combined into a packet bundle. A determination is made as to whether a second byte caching system is available. The packet bundle is transformed using one or more byte caching operations based on a second byte caching system being available. The transformed packet bundle is sent to the second byte caching system using an IP communication mechanism.

First claim

What is claimed is:

1. A method, with a first byte caching system, for performing byte caching in a wireless communication network device comprising:
receiving a plurality of data packets through an internet protocol (IP) data flow established between a wireless communication device and at least one server;
combining each of the plurality of data packets into a single packet bundle, wherein the combining comprises combining a payload from each of the plurality of data packets into a combined payload and storing the combined payload in the packet bundle;
dividing the combined payload into a plurality of byte sequences;
determining that a second byte caching system has previously received only a subset of the plurality of byte sequences;
based on the second byte caching system having previously received only a subset of the plurality of byte sequences, transforming the packet bundle to include a set of signatures each representing one of the subset of the plurality of byte sequences and to further include a remaining set of the plurality of byte sequences; and
sending the transformed packet bundle to the second byte caching system via an IP communication mechanism.

2. The method of claim 1 , further comprising:
buffering the plurality of data packets until a buffering threshold has been reached.

3. The method of claim 1 , further comprising:
adding a set of header information associated with the combined payload to the packet bundle.

4. The method of claim 1 , further comprising:
storing, based on the second byte caching system having previously received at least a first of the plurality of byte sequences, a signature representing the at least a first of the plurality of byte sequences in the packet bundle.

5. The method of claim 4 , further comprising:
determining that the second byte caching system has failed to receive at least a second of the plurality of byte sequences; and
storing, based on the determining, the at least a second of the plurality of byte sequences in the packet bundle.

6. The method of claim 1 , further comprising:
determining that the second byte caching system is available by receiving a signal from the second byte caching server indicating an availability of the second byte caching system.

7. The method of claim 1 , wherein the sending comprises:
encapsulating the transformed packet bundle within at least one IP packet using at least a source address and a destination address associated with the IP data flow.

8. The method of claim 1 , wherein the sending comprises:
encapsulating the transformed packet bundle within at least one IP packet; and
sending the IP packet directly to the second byte caching system.

9. The method of claim 1 , wherein the packet bundle is a self-contained data unit, wherein a payload of each of the plurality of packets is reconstructable from data within the packet bundle and a byte cache.

10. The method of claim 1 , further comprising:
receiving an indication from a third byte caching system that the wireless communication device has moved from a base station associated with the second byte caching system to a base station associated with the third byte caching system; and
sending, based on the receiving, subsequent packet bundles to the third byte caching system.

11. The method of claim 1 , further comprising:
receiving a first indication from at least a one byte caching system that the wireless communication device is currently coupled to a base station;
receiving a second indication from at least one additional byte caching system that the wireless communication device is currently coupled to a second base station; and
halting, based on receiving the first and second indications, byte caching operations on subsequently received data packets.

12. The method of claim 1 , further comprising:
determining the wireless communication device has been decoupled from a first base station associated with the second byte caching system and is currently coupled to a second base station failing to be associated with a byte caching system; and
halting, in response to the determining, byte caching operations on subsequently received data packets.

Assignees

• IBM

Inventors

• Agrawal Dakshi
• Ko Bongjun
• Le Franck
• Nicholson Robert B
• Pappas Vasileios
• Verma Dinesh

Classifications

• H04L69/04

  Protocols for data compression, e.g. ROHC · CPC title

• H04W28/06

  Optimizing {the usage of the radio link}, e.g. header compression, information sizing {, discarding information (system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365)} · CPC title

• H03M7/30

  Compression (speech analysis-synthesis for redundancy reduction G10L19/00; for image communication H04N); Expansion; Suppression of unnecessary data, e.g. redundancy reduction · CPC title

• H04W28/12

  using signalling between network elements · CPC title

• H04W4/18 Primary

  Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals · CPC title