LTE UE category | UE category in LTE cat-1, 2, 3, 4, 5

This page covers LTE UE category including PHY layer parameters. It covers UE category in LTE viz. cat-1, cat-2, cat-3, cat-4 and cat-5.

The LTE UE downlink and uplink PHY layer parameters such as buffer sizes, modulation type, data rate (Mbps), MIMO, max. MCH bits, DL-SCH transport block size etc. are mentioned for different LTE UE categories in the table below.

Feature	LTE ue Cat-1	LTE ue Cat-2	LTE ue Cat-3	LTE ue Cat-4	LTE ue Cat-5
Data Rate(Mbps)	Downlink(DL) 10, Uplink(UL) 5	DL 50, UL 25	DL 100, UL 50	DL 150, UL 50	DL 300, UL 75
Modulation type supported	DL: QPSK, 16QAM, 64QAM, UL: QPSK, 16QAM	DL: QPSK, 16QAM, 64QAM, UL: QPSK, 16QAM	DL: QPSK, 16QAM, 64QAM, UL: QPSK, 16QAM	DL: QPSK, 16QAM, 64QAM, UL: QPSK, 16QAM	DL: QPSK, 16QAM, 64QAM, UL: QPSK, 16QAM, 64QAM
2x2 MIMO	Not supported	Mandatory	Mandatory	Mandatory	Mandatory
4x4 MIMO	Not supported	Not supported	Not supported	Not supported	Mandatory
Total Layer-2 Buffer Size(Bytes)	150 000	700 000	1 400 000	1 900 000	3 500 000
Max. no. of bits of a MCH transport block received within a TTI	10296	51024	75376	75376	75376
Max. no. of bits of a DL-SCH transport block received within a TTI	10296	51024	75376	75376	149776
Max. no. of supported layers for spatial multiplexing in DL	1	2	2	2	4
Max. no. of bits of an UL-SCH transport block transmitted within a TTI	5160	25456	51024	51024	75376

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LTE UE category | UE category in LTE cat-1, 2, 3, 4, 5

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