Patent ID: 9019881
Filing Date: 2015-04-28
Classification: H04W,Y02D

Abstract:
1. A method for waking up a Node B (NB) cell, comprising: when a User Equipment (UE) in an idle state arrives in an area of an NB cell in which the UE ever resided, but does not search out signals of the NB cell, reporting, by the UE, Proximity Indication (PI) information to a network side through a specific Tracking Area Update (TAU) process; and waking up the NB cell by the network side when determining that there is a need to wake up the NB cell according to footprint information which is reported by the UE and obtained in the specific TAU process, wherein reporting, by the UE, the PI information to the network side through the specific TAU process comprises: sending, by the UE, a specific TAU request to the network side, wherein the TAU request carries the PI information and the footprint information of the NB cell in which the UE ever resided, and a value of the PI information is set in an Evolved Packet System (EPS) update type field.