Title:
キャリアアグリゲーションを使用する通信システムにおける電力制限の報告
Document Type and Number:
Japanese Patent JP6478135
Kind Code:
B2
Abstract:
The invention relates to methods for informing an eNodeB on the transmit power status of a user equipment in a mobile communication system using component carrier (CC) aggregation. Furthermore, the invention is also related to the implementation of these methods by hardware and their implementation in software. The invention proposes procedures that allow the eNodeB to recognize the power usage status of a UE in a communication system using carrier aggregation. The UE indicates to the eNodeB, when the UE is close to using its total maximum UE transmit power or when it has exceeded same. This is achieved by the UE including indicator(s) and/or new MAC CEs to one or more protocol data units transmitted on respective component carriers within a single sub-frame that is providing the eNodeB with power status information. The MAC CEs may report a per-UE power headroom. Alternatively, the MAC CEs may report per-CC power headrooms and/or power reductions applied to the respective uplink CCs.
Inventors:
Fire Sanger Martin
Lower Joachim
Wenger Christian
Lower Joachim
Wenger Christian
Application Number:
JP2018097827A
Publication Date:
March 06, 2019
Filing Date:
May 22, 2018
Export Citation:
Assignee:
Sun Patent Trust
International Classes:
H04W52/30; H04W72/04
Domestic Patent References:
| JP5902839B2 |
Other References:
Panasonic,UE-specific Power headroom report,3GPP TSG-RAN WG2 Meeting #70bis,3GPP,2010年 7月 3日,R2-103602
Attorney, Agent or Firm:
Koichi Washida