Carrier aggregation in long term evolution advanced
Long Term Evolution-Advanced (LTE-Advanced) provides considerably higher data rates than even early releases of LTE. One key enhancement feature is bandwidth extension by the use of multicarrier technology to support deployment bandwidth up to 100 MHz. In order to achieve up to 1 Gb/s peak data...
| Main Authors: | , |
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| Format: | Conference or Workshop Item |
| Language: | English English |
| Published: |
IEEE
2012
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/8175/ http://irep.iium.edu.my/8175/ http://irep.iium.edu.my/8175/1/Carrier_Aggregation_in_Long_Term.pdf http://irep.iium.edu.my/8175/4/8175_Carrier%20aggregation%20in%20Long%20Term_SCOPUS.pdf |
| Summary: | Long Term Evolution-Advanced (LTE-Advanced)
provides considerably higher data rates than even early releases
of LTE. One key enhancement feature is bandwidth extension by
the use of multicarrier technology to support deployment
bandwidth up to 100 MHz. In order to achieve up to 1 Gb/s peak
data rate in IMT-Advanced mobile systems, carrier aggregation
technology is introduced by the 3GPP to support very-high-datarate
transmissions over wide frequency bandwidths (e.g., up to
100 MHz) in its new LTE-Advanced standards. The carrier
aggregation (CA) technology allows scalable expansion of
effective bandwidth provided to a user terminal through
simultaneous utilization of radio resources across multiple
carriers. The CA in LTE-Advanced is designed to support
aggregation of a variety of different arrangements of component
carriers (CCs) , including CCs of the same or different
bandwidths, contiguous or non- contiguous CCs in the same
frequency band, and CCs in different frequency bands. The CA
is supported by both formats of LTE, specifically the frequency
Division Duplex (FDD) and Time Division Duplex (TDD)
variants. This guarantees that both FDD LTE and TDD LTE are
able to meet the high data throughput requirements placed upon
them. This paper provides an outline of carrier aggregation
including aggregation structure, deployment scenarios,
implementation, main design features and backward
compatibility with legacy LTE systems. |
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