10.1.5 Scheduling Request (SR) procedure
36.2133GPPEvolved Universal Terrestrial Radio Access (E-UTRA)Physical layer proceduresRelease 17TS
A non-BL/CE UE is configured by higher layers to transmit the SR on one antenna port or two antenna ports.
For a non-BL/CE UE, the scheduling request shall be transmitted on the PUCCH resource(s) 
for 
mapped to antenna port p as defined in [3], where 
is configured by higher layers unless the SR coincides in time with the transmission of HARQ-ACK using PUCCH Format 3/4/5 in which case the SR is multiplexed with HARQ-ACK according to Clause 5.2.3.1 of [4]. The subframe-SR configuration for SR transmission periodicity 
and SR subframe offset 
is defined in Table 10.1.5-1 by the parameter sr-ConfigIndex 
given by higher layers.
Subframe-SR transmission instances are the uplink subframes satisfying 
.
The slot-SR configuration for SR transmission periodicity 
and SR slot offset 
is defined in Table 10.1.5-1A by the parameter sr-ConfigIndexSlot 
given by higher layers.
Slot-SR transmission instances are the uplink slots satisfying
.
The subslot-SR configuration for SR transmission periodicity 
and SR subslot offset 
is defined in Table 10.1.5-1B by the parameter sr-ConfigIndexSubslot 
given by higher layers.
Subslot-SR transmission instances are the uplink slots satisfying
, where 
is the subslot index within a subframe.
For a BL/CE UE, the scheduling request shall be transmitted on the PUCCH resource(s) 
mapped to antenna port 
as defined in [3], where 
is configured by higher layers. The SR configuration for SR transmission periodicity 
and SR subframe offset 
is defined in Table 10.1.5-1 by the parameter sr-ConfigIndex 
given by higher layers. The SR transmission instances are 
consecutive BL/CE uplink subframes when 
>1, or one uplink subframe (which may or may not be a BL/CE UL subframe) when 
=1, where is provided by higher layer parameter NumRepetitionCE-format1, starting from a subframe satisfying 
.
Table 10.1.5-1: UE-specific SR periodicity and subframe offset configuration for subframe-SR
|
SR configuration Index |
SR periodicity (ms) |
SR subframe offset |
|
0 – 4 |
5 |
|
|
5 – 14 |
10 |
|
|
15 – 34 |
20 |
|
|
35 – 74 |
40 |
|
|
75 – 154 |
80 |
|
|
155 – 156 |
2 |
|
|
157 |
1 |
|
Table 10.1.5-1A: UE-specific SR periodicity and slot offset configuration for slot-SR
|
SR configuration Index |
SR periodicity (number of slots) |
SR slot offset |
|
0 |
1 |
|
|
1 – 2 |
2 |
|
|
3 – 6 |
4 |
|
|
7 – 16 |
10 |
|
|
17 – 36 |
20 |
|
Table 10.1.5-1B: UE-specific SR periodicity and subslot offset configuration for subslot-SR
|
SR configuration Index |
SR periodicity (number of subslots) |
SR subslot offset |
|
0 |
1 |
|
|
1 – 2 |
2 |
|
|
3 – 5 |
3 |
|
|
6 – 9 |
4 |
|
|
10 – 14 |
5 |
|
|
15 – 20 |
6 |
|
|
21 – 32 |
12 |
|
|
33 – 62 |
30 |
|
|
63 – 122 |
60 |
|
