Patent ID: 9655066
Date: 2017-05-16
CPC Classifications: H04W

Claim:
1. A method for a User Equipment (UE) operating in a wireless communication system, the method comprising: configuring a radio bearer comprising a first Medium Access Control (MAC) entity corresponding to a Master-enhanced-NodeB (MeNB) and a second MAC entity corresponding to a Secondary-eNB (SeNB); and triggering a first power headroom reporting (PHR) in the first MAC entity and a second PHR in the second MAC entity if a prohibitPHR-Timer of the first MAC entity expires or has expired when the first MAC entity has uplink (UL) resources for a new transmission to the MeNB, although a prohibitPHR-Timer of the second MAC entity has not expired when the second MAC entity has UL resources for a new transmission to the SeNB, wherein a required power backoff due to power management for the first MAC entity has changed more than a threshold.