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1. (WO2017020270) DEEP PACKET INSPECTION INDICATION FOR A MOBILE CDN

Pub. No.:    WO/2017/020270    International Application No.:    PCT/CN2015/086101
Publication Date: Fri Feb 10 00:59:59 CET 2017 International Filing Date: Thu Aug 06 01:59:59 CEST 2015
IPC: H04L 12/70
H04L 12/26
Applicants: QUALCOMM INCORPORATED
LIU, Huihun
ZHU, Xipeng
HORN, Bernard Gavin
Inventors: LIU, Huihun
ZHU, Xipeng
HORN, Bernard Gavin
Title: DEEP PACKET INSPECTION INDICATION FOR A MOBILE CDN
Abstract:
Systems and techniques are disclosed to reduce workload on base stations in a mobile network when content delivery networks cache content inside the network. A user equipment sets a flag only with those packets on the uplink which include requests that should be routed to the cache server inside the mobile network. The base stations perform deep packet inspection of those packets where flags have been set and forward other packets on to the rest of the relevant backhaul of the mobile network. After deep packet inspection, the base stations either route the packet to the cache server via an established connection or propagate the flag in an extension header to another network node for routing to the cache server. The resulting content is returned to the UE with the source address of the originally intended destination instead of the cache server, rendering the process transparent to the end user.