Byte caching in wireless communication networks

• US 10,129,791 B2
• Filed: 04/20/2016
• Issued: 11/13/2018
• Est. Priority Date: 08/31/2012
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Agrawal, Dakshi, Ko, Bongjun, Le, Franck, Nicholson, Robert B., Pappas, Vasileios, Verma, Dinesh
• Primary Examiner(s): Kim, Hee Soo
• Assistant Examiner(s): Shiu, Ho T
• Application Number:
  US15/133,358
• Publication Number:
  US 20160234719A1
• Time in Patent Office: 937 Days
• CPC Class Codes: H03M 7/30 Compression speech analysis-synthesis for redundancy reduction G10L19/00; for image communication H04N; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
• CPC Class Codes: H03M 7/3059 Digital compression and data reduction techniques where the original information is represented by a subset or similar information, e.g. lossy compression
• CPC Class Codes: H04L 12/1895 for short real-time information, e.g. alarms, notifications, alerts, updates
• CPC Class Codes: H04L 47/30 in combination with information about buffer occupancy at either end or at transit nodes
• CPC Class Codes: H04L 63/0281 Proxies
• CPC Class Codes: H04L 65/70 Media network packetisation
• CPC Class Codes: H04L 67/2876 Pairs of inter-processing entities at each side of the network, e.g. split proxies
• CPC Class Codes: H04L 69/04 Protocols for data compression, e.g. ROHC
• CPC Class Codes: H04W 28/06 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 Class Codes: H04W 28/065 using assembly or disassembly of packets
• CPC Class Codes: H04W 28/12 using signalling between network elements
• CPC Class Codes: H04W 28/14 using intermediate storage
• CPC Class Codes: H04W 4/18 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

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.

Claims

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.