category – richliu's blog https://blog.richliu.com Linux, 工作, 生活, 家人 Mon, 21 Oct 2013 02:24:54 +0000 zh-TW hourly 1 https://wordpress.org/?v=6.6.2 LTE UE Category and Class Definitions https://blog.richliu.com/2013/09/23/1514/lte-ue-category-and-class-definitions/ https://blog.richliu.com/2013/09/23/1514/lte-ue-category-and-class-definitions/#respond Mon, 23 Sep 2013 00:52:56 +0000 http://blog.richliu.com/?p=1514   A summary of the different LTE UE category param […]

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A summary of the different LTE UE category parameters provided by the 3GPP Rel 8 standard is given in the tables below.

 

Category 1 2 3 4 5
Downlink 10 50 100 150 300
Uplink 5 25 50 50 75

LTE UE category data rates

Category 1 2 3 4 5
Downlink
QPSK, 16QAM, 64QAM
Uplink
QPSK, 16QAM
 QPSK,
16QAM,
64QAM

LTE UE category modulation formats supported

Category 1 2 3 4 5
2 Rx diversity
Assumed in performance requirements across all LTE UE categories
2 x 2 MIMO
Not
supported
Mandatory
4 x 4 MIMO
Not supported
Mandatory

LTE UE category MIMO antenna configurations
Note: Bandwidth for all categories is 20 MHz.

所以如果只是 10MHz 2×2 MIMO, 只有 Downstream 75MBits/s Upstream 20Mbits 左右的速度, 只需要用到 Category 3. 再高也沒有必要

Source:
LTE UE Category and Class Definitions

Update
http://lteuniversity.com/get_trained/expert_opinion1/b/raysulewski/archive/2013/01/16/how-fast-can-my-lte-smartphone-go.aspx

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