Content caching in the radio access network (RAN)
US9001840B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 2013 |
| Grant date | Apr 7, 2015 |
| Priority date | — |
| Expiry date | Nov 4, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/59
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method to intercept traffic at standard interface points as defined by Cellular/Wireless networks (GSM/GPRS, 3G/UMTS/HSDPA/HSUPA, CDMA, WIMAX, LTE), emulate the respective protocols on either side of the interception point, extract user/application payloads within the intercepted packets, perform optimizations, and re-encapsulate with the same protocol, and deliver the content transparently is disclosed. The optimizations include but are not limited to Content Caching, prediction & pre-fetching of frequently used content, performance of content-aware transport optimizations (TCP, UDP, RTP etc.) for reducing back-haul bandwidth, and improvement of user experience. An additional embodiment of the current invention includes injecting opportunistic content (location based, profile based or advertisement content) based on the information derived while monitoring control plane protocols.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.