As the specification of Release 11 of
the LTE standards is approaching its completion, 3GPP is gradually moving its
focus toward the next major step in the evolution of LTE. The drivers of the LTE
evolution include the increasing demand for mobile broadband services and
traffic volumes as well as emerging usage scenarios involving short-range and
machine-type communications.
In this article, an overview of the key
technology areas/components that are currently considered by 3GPP for Rel-12,
including support for further enhanced local area access by tight interaction
between the wide area and local area layers, signaling solutions for wireless
local area network integration, multi-antenna enhancements, improved support for
massive MTC, and direct device-to-device communications, an provided.
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