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http://dx.doi.org/10.7840/kics.2014.39A.9.497

LTE-Advanced CA Features in 3GPP REL-12 and its Future  

Lim, Su Hwan (LG Electronics)
Lee, Sang-Wook (LG Electronics)
Abstract
This paper investigates the standard features of Carrier aggregation (CA), the related UE RF requirements in 3GPP release 12 and estimated CA evolution in future. The main CA feature of 3GPP release 12 in WG4 perspectives includes 2Uplink(UL) CA, 3Downlink(DL) CA and TDD-FDD CA. To support these features in UE, UE-to-UE coexistence problem and RF requirements generated by unwanted emissions such as inter-modulation and harmonics are analyzed. Also, future CA technology such as LTE in unlicensed bands is described.
Keywords
Carrier Aggregation (CA); 2ULs CA; 3DLs CA; TDD-FDD CA; UE RF requirements;
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