Wednesday, March 13, 2019

UCI :

UCI stands for Uplink Control Information. UCI is transmitted on PUCCH. It can even be multiplexed and sent over PUSCH.

UCI includes SR (Scheduling Request), HARQ-ACK, CSI (Channel State Information).

UE has a possibility to transmit one or two PUCCHs on a serving cell in different symbols within a slot, in such cases at least one of the two PUCCHs should be Format 0 or Format 2.

CRC for UCI bits >= 360 would be 11, for other cases UE determines based on UCI bits.

PUCCH resource sets for UCI transmission can be signaled to UE either by dedicated PUCCH configuration or by common PUCCH configuration.

Dedicated PUCCH Resource Config is via  PUCCH-ResourceSet in PUCCH-Config
Common PUCCH Resource Set is via pucch-ResourceCommon.

PUCCH Resource Sets via pucch-ResourceCommon :



Index
PUCCH format
First symbol
Number of symbols
PRB offset
Set of initial CS indexes
0
0
12
2
0
{0, 3}
1
0
12
2
0
{0, 4, 8}
2
0
12
2
3
{0, 4, 8}
3
1
10
4
0
{0, 6}
4
1
10
4
0
{0, 3, 6, 9}
5
1
10
4
2
{0, 3, 6, 9}
6
1
10
4
4
{0, 3, 6, 9}
7
1
4
10
0
{0, 6}
8
1
4
10
0
{0, 3, 6, 9}
9
1
4
10
2
{0, 3, 6, 9}
10
1
4
10
4
{0, 3, 6, 9}
11
1
0
14
0
{0, 6}
12
1
0
14
0
{0, 3, 6, 9}
13
1
0
14
2
{0, 3, 6, 9}
14
1
0
14
4
{0, 3, 6, 9}
15
1
0
14
{0, 3, 6, 9}

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