Search International and National Patent Collections

1. (WO2018218645) DEVICE, SYSTEM, AND METHOD FOR ADAPTIVE TRANSMISSION POWER ALLOCATION IN UPLINK CARRIER AGGREGATION

Pub. No.:    WO/2018/218645    International Application No.:    PCT/CN2017/086960
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Sat Jun 03 01:59:59 CEST 2017
IPC: H04B 7/00
Applicants: APPLE INC.
JI, Zhu
Inventors: JI, Zhu
ZONG, Ruirui
PAN, Wenshan
LI, Lei
YAN, Yaoqi
BRIGGS, Elliot S.
Title: DEVICE, SYSTEM, AND METHOD FOR ADAPTIVE TRANSMISSION POWER ALLOCATION IN UPLINK CARRIER AGGREGATION
Abstract:
A device, system, and method adaptively adjusts uplink power transmission to component carriers in carrier aggregation. The method is performed at a user equipment configured with a carrier aggregation functionality including a primary component carrier (PCC) and a secondary component carrier (SCC), the UE using a first transmit power for an uplink transmission on the PCC and using a second transmit power for the uplink transmission on the SCC. The method includes determining whether a total transmit power including the first and second transmit powers for the uplink transmission exceeds a predetermined threshold. The method includes, when the total transmit power exceeds the predetermined threshold, adjusting the first transmit power based on a connectivity parameter for the PCC. The method includes adjusting the second transmit power based on the adjusting of the first transmit power.