资料介绍
LTELTE 空中接口技术与性能
系统概述
田韬
Confidential Information
About LTE
> LTE: Long Term Evolution
LTE is a 3GPP project name for the evolution of UMTS, LTE project aims to ensure the continued competitiveness of the 3GPP technologies for the future. It is now linked with the development of a new air interface Existed together the evolution of UMTS via HSDPA and HSUPA
> Formal names :
Evolved UTRA (E-UTRA) / Evolved UTRAN (E-UTRAN) Evolved UMTS Terrestrial Radio Access Evolved UMTS Terrestrial Radio Access Network
> SAE: System Architecture Evolution
It refers to the evolved core network.
Confidential Information
LTE性能设计目标
> TR25.913 > 峰值速率
下行100Mbps（20MHz，MIMO2x2) 上行50Mbps(20MHz, 1x antenna)
> 时延
C-plan U-plan: 5ms (unload, small IP packet), RTT<10ms
> 容量
<5MHz: 200 subs 激活 >5MHz
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