10.1.5 Scheduling Request (SR) procedure

36.2133GPPEvolved Universal Terrestrial Radio Access (E-UTRA)Physical layer proceduresRelease 16TS

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