LTE UE Category는 3GPP TS36.306에 규정한 것처럼 업링크 데이터 속도 및 다운링크 데이터 속도 등의 성능의 조합으로 정의됩니다. 각각의 LTE Category는 지원되는 파라미터 및 성능에 따라 다양합니다.
예를 들어 LTE Category 1은 MIMO를 지원하지 않지만, Category 5는 4x4 MIMO를 지원합니다. Category가 높을수록 더 좋은 성능을 제공합니다.
▶ DL-SCH = Downlink shared channel
▶ UL-SCH = Uplink shared channel
▶ TTI = Transmission Time Interval
Downlink physical layer parameter values set by the field ue-Category (36.306 table 4.1-1):
UE Category
|
Maximum number of DL-SCH transport block bits received within a TTI (Note 1)
|
Maximum number of bits of a DL-SCH transport block received within a TTI
|
Total number of soft channel bits
|
Maximum number of supported layers for spatial multiplexing in DL
|
Category 1
|
10296
|
10296
|
250368
|
1
|
Category 2
|
51024
|
51024
|
1237248
|
2
|
Category 3
|
102048
|
75376
|
1237248
|
2
|
Category 4
|
150752
|
75376
|
1827072
|
2
|
Category 5
|
299552
|
149776
|
3667200
|
4
|
Category 6
|
301504
|
149776 (4 layers, 64QAM)
75376 (2 layers, 64QAM) |
3654144
|
2 or 4
|
Category 7
|
301504
|
149776 (4 layers, 64QAM)
75376 (2 layers, 64QAM) |
3654144
|
2 or 4
|
Category 8
|
2998560
|
299856
|
35982720
|
8
|
Category 9
|
452256
|
149776 (4 layers, 64QAM)
75376 (2 layers, 64QAM) |
5481216
|
2 or 4
|
Category 10
|
452256
|
149776 (4 layers, 64QAM)
75376 (2 layers, 64QAM) |
5481216
|
2 or 4
|
Category 11
|
603008
|
149776 (4 layers, 64QAM)
195816 (4 layers, 256QAM) 75376 (2 layers, 64QAM) 97896 (2 layers, 256QAM) |
7308288
|
2 or 4
|
Category 12
|
603008
|
149776 (4 layers, 64QAM)
195816 (4 layers, 256QAM) 75376 (2 layers, 64QAM) 97896 (2 layers, 256QAM) |
7308288
|
2 or 4
|
NOTE 1: In carrier aggregation operation, the DL-SCH processing capability can be shared by the UE with that of MCH received from a serving cell. If the total eNB scheduling for DL-SCH and an MCH in one serving cell at a given TTI is larger than the defined processing capability, the prioritization between DL-SCH and MCH is left up to UE implementation.
| ||||
Uplink physical layer parameter values set by the field ue-Category (36.306 table 4.1-2):
UE Category
|
Maximum number of UL-SCH transport block bits transmitted within a TTI
|
Maximum number of bits of an UL-SCH transport block transmitted within a TTI
|
Support for 64QAM in UL
|
Category 1
|
5160
|
5160
|
No
|
Category 2
|
25456
|
25456
|
No
|
Category 3
|
51024
|
51024
|
No
|
Category 4
|
51024
|
51024
|
No
|
Category 5
|
75376
|
75376
|
Yes
|
Category 6
|
51024
|
51024
|
No
|
Category 7
|
102048
|
51024
|
No
|
Category 8
|
1497760
|
149776
|
Yes
|
Category 9
|
51024
|
51024
|
No
|
Category 10
|
102048
|
51024
|
No
|
Category 11
|
51024
|
51024
|
No
|
Category 12
|
102048
|
51024
|
No
|
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