Patent ID: 9622176
Date: 2017-04-11
CPC Classifications: H04L,H04W,Y02D

Claim:
1. A method of packet filtering to save power at a user equipment (UE), comprising: receiving, at a modem processor (MP) of the UE, a packet filtering configuration message from an application processor (AP) at the UE, wherein the AP is in communication with the MP, and wherein the packet filtering configuration message includes one or more packet filtering rules for filtering packets associated with one or more applications; configuring a packet filter at the MP based at least on the one or more packet filtering rules received in the packet filtering configuration message, wherein the configured packet filter is initially disabled upon configuration; and enabling the configured packet filter at the MP in response to receiving an indication from the AP that the AP entered a low power or sleep mode, wherein the enabled packet filter allows or drops a packet based on the packet filtering rules.