Byte caching in wireless communication networks

• US 10,171,616 B2
• Filed: 01/27/2016
• Issued: 01/01/2019
• 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): Mian, Omer S
• Application Number:
  US15/007,321
• Publication Number:
  US 20160142938A1
• Time in Patent Office: 1,070 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 computer program storage product for performing byte caching in a wireless communication network device with a first byte caching system, the computer program storage product comprising:

a non-transitory storage medium readable by a processing circuit and storing instructions for execution by the processing circuit for performing a method 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;

in response to receiving the plurality of data packets, determining whether a second byte caching system is available;

in response to determining that the second byte caching system is available,

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,

transforming the packet bundle by dividing the combined payload into a plurality of byte sequence, determining that a second byte caching system has previously received only a portion of the plurality of byte sequences, and including a set of signatures each representing the portion of the plurality of byte sequences and remaining of the plurality of byte sequences in the packet bundle;

and

sending the transformed packet bundle to the second byte caching system via an IP communication mechanism; and

in response to determining that the second byte caching system is unavailable, transmitting the plurality of data packets to the wireless communication device without performing at least said transforming.

2. The computer program storage product of claim 1, wherein the method further comprises:

buffering the plurality of data packets until a buffering threshold has been reached.

3. The computer program storage product of claim 1, wherein the method further comprises:

adding a set of header information associated with the combined payload to the payload bundle.

4. The computer program storage product of claim 1, wherein the determining comprises:

receiving a signal from the second byte caching system indicating an availability of the second byte caching system.

5. The computer program storage product of claim 1, wherein the method further comprises:

determining that the second byte caching system has failed to receive said remaining of the plurality of byte sequences; and

storing, based on the determining, the said remaining of the plurality of byte sequences in the packet bundle.

6. The computer program storage product 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; and

sending the IP packet directly to the second byte caching system.

7. The computer program storage product 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.

8. The computer program storage product of claim 1, wherein the method further comprises:

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.

9. The computer program storage product of claim 1, wherein the method further comprises;

receiving a first indication from at least one byte caching system that the wireless communication device is currently coupled to a first base station;

receiving a second indication from at least one other 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.

10. The computer program storage product of claim 1, wherein the method further comprises:

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 second base station falling to be associated with a byte caching system; and

halting, in response to the determining, byte caching operations on subsequently received data packets.

11. A byte caching system for performing byte caching in a wireless communication network device, the byte caching system comprising:

a memory;

a processor communicatively coupled to the memory; and

a byte caching manager communicatively coupled to the memory and the processor, wherein the byte caching manager is configured to perform a method 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;

in response to receiving the plurality of data packets, determining whether another byte caching system is available;

in response to determining that the another byte caching system is available,

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,

transforming the packet bundle, and by dividing the combined payload into a plurality of byte sequence, determining that another byte caching system has previously received only a portion of the plurality of byte sequences, and including a set of signatures each representing the portion of the plurality of byte sequences and remaining of the plurality of byte sequences in the packet bundle,

and

sending the transformed packet bundle to the another byte caching system via an IP communication mechanism; and

in response to determining that another byte caching system is unavailable, transmitting the plurality of data packets to the wireless communication device without performing at least said transforming.

12. The byte caching system at claim 11, wherein the determining comprises:

receiving a signal from the another byte caching system indicating an availability of the another byte caching system.

13. The byte caching system of claim 11, wherein the method further comprises:

determining that the another byte caching system has failed to receive said remaining of the plurality of byte sequences; and

storing, based on the determining, the said remaining of the plurality of byte sequences in the packet bundle.

14. The byte caching system of claim 11, 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; and

sending the IP packet directly to the another byte caching system.

15. The byte caching system of claim 11, wherein the method further comprises:

receiving an indication from an additional byte caching system that the wireless communication device has moved from a base station associated with the another byte caching system to a base station associated with the additional byte caching system; and

sending, based on the receiving, subsequent packet bundles to the additional byte caching system.

16. The byte caching system of claim 11, wherein the method further comprises:

receiving a first indication from at least one byte caching system that the wireless communication is currently coupled to a first base station;

receiving a second indication from at least one other byte caching system that the wireless communication 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.

17. The byte caching system of claim 11, wherein the method further comprises:

determining the wireless communication device has been decoupled from a first base station associated with the another byte caching system and is currently coupled to 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.