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Evolution-Data Optimized
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==== Features ==== * [[OFDMA]]-based air interface * [[Duplex (telecommunications)|Frequency Division Duplex]] * Scalable bandwidth between 1.25β20 MHz (OFDMA systems are especially well suited for wider bandwidths larger than 5 MHz) * Support of mixed cell sizes, e.g., macro-cellular, [[Microcell|micro-cellular]] & pico-cellular. * [[Internet Protocol|IP]] network architecture * Support of flat, centralized and mixed topologies * Data speeds over 275 Mbit/s downstream and over 75 Mbit/s upstream <!--*Built upon large PP2 ecosystem with track history of early delivery of robust and advanced wireless systems -- this needs translating into English. WTX is PP2? --> * Significantly higher data rates & reduced latencies using Forward Link (FL) advanced antenna techniques ** [[MIMO]], [[Space-division multiple access|SDMA]] and [[Beamforming]] * Higher Reverse Link (RL) sector capacity with quasi-orthogonal reverse link * Increased cell edge user data rates using adaptive interference management ** Dynamic fractional frequency reuse ** Distributed RL power control based on other cell interference * Real time services enabled by fast seamless L1/L2 handoffs ** Independent RL & FL handoffs provide better airlink and handoff performance * Power optimization through use of quick paging and semi-connected state * Low-overhead signaling using flexible airlink resource management * Fast access and request using RL [[CDMA]] control channels * New scalable IP architecture supports inter-technology handoffs ** New handoff mechanisms support real-time services throughout the network and across different airlink technologies * Fast acquisition and efficient multi-carrier operation through use of beacons * Multi-carrier configuration supports incremental deployment & mix of low-complexity & wideband devices
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