14.1.1 UE procedure for transmitting the PSSCH
36.2133GPPEvolved Universal Terrestrial Radio Access (E-UTRA)Physical layer proceduresRelease 17TS
If the UE transmits SCI format 0 on PSCCH according to a PSCCH resource configuration in subframe n belonging to a PSCCH period (described in Clause 14.2.3), then for the corresponding PSSCH transmissions
– the transmissions occur in a set of subframes in the PSCCH period and in a set of resource blocks within the set of subframes. The first PSSCH transport block is transmitted in the first four subframes in the set, the second transport block is transmitted in the next four subframes in the set, and so on.
– for sidelink transmission mode 1,
– the set of subframes is determined using the subframe pool indicated by the PSSCH resource configuration (described in Clause 14.1.4) and using time resource pattern (
) in the SCI format 0 as described in Clause 14.1.1.1.
– the set of resource blocks is determined using Resource block assignment and hopping allocation in the SCI format 0 as described in Clause 14.1.1.2.
– for sidelink transmission mode 2,
– the set of subframes is determined using the subframe pool indicated by the PSSCH resource configuration (described in Clause 14.1.3) and using time resource pattern () in the SCI format 0 as described in Clause 14.1.1.3.
– the set of resource blocks is determined using the resource block pool indicated by the PSSCH resource configuration (described in Clause 14.1.3) and using Resource block assignment and hopping allocation in the SCI format 0 as described in Clause 14.1.1.4.
– the modulation order is determined using the "modulation and coding scheme " field (
) in SCI format 0. For
, the modulation order is set to 
, where 
is determined from Table 8.6.1-1.
– the TBS index (
) is determined based on
and Table 8.6.1-1, and the transport block size is determined using 
and the number of allocated resource blocks (
) using the procedure in Clause 7.1.7.2.1.
If the UE transmits SCI format 1 on PSCCH according to a PSCCH resource configuration in subframe n, then for the corresponding PSSCH transmissions of one TB
– for sidelink transmission mode 3,
– the set of subframes and the set of resource blocks are determined using the subframe pool indicated by the PSSCH resource configuration (described in Clause 14.1.5) and using "Retransmission index and Time gap between initial transmission and retransmission" field and "Frequency resource location of the initial transmission and retransmission" field in the SCI format 1 as described in Clause 14.1.1.4A.
– for sidelink transmission mode 4,
– the set of subframes and the set of resource blocks are determined using the subframe pool indicated by the PSSCH resource configuration (described in Clause 14.1.5) and using "Retransmission index and Time gap between initial transmission and retransmission" field and "Frequency resource location of the initial transmission and retransmission" field in the SCI format 1 as described in Clause 14.1.1.4B.
– if higher layer indicates that rate matching for the last symbol in the subframe is used for the given PSSCH
– Transmission Format of corresponding SCI format 1 is set to 1,
– the modulation order is determined using the "modulation and coding scheme " field (
) in SCI format 1.
– for 
, the TBS index (
) is determined based on
and Table 8.6.1-1,
– for 
, the TBS index (
) is determined based on
and Table 14.1.1-2,
– the transport block size is determined by using 
and setting the Table 7.1.7.2.1-1 column indicator to 
, where 
to the total number of allocated PRBs based on the procedure defined in Clause 14.1.1.4A and 14.1.1.4B.
– otherwise
– Transmission Format of SCI format 1 is set to 0 if present,
– the modulation order is determined using the "modulation and coding scheme " field (
) in SCI format 1. For
, the modulation order is set to 
, where 
is determined from Table 8.6.1-1.
– the TBS index (
) is determined based on
and Table 8.6.1-1, and the transport block size is determined using 
and the number of allocated resource blocks (
) using the procedure in Clause 7.1.7.2.1.
For sidelink transmission mode 3 and 4, the parameter 
is given by table 14.1.1-1.
Table 14.1.1-1: Determination of
for sidelink transmission mode 3 and 4
|
|
|
|
TDD with UL/DL configuration 0 |
60 |
|
TDD with UL/DL configuration 1 |
40 |
|
TDD with UL/DL configuration 2 |
20 |
|
TDD with UL/DL configuration 3 |
30 |
|
TDD with UL/DL configuration 4 |
20 |
|
TDD with UL/DL configuration 5 |
10 |
|
TDD with UL/DL configuration 6 |
50 |
|
Otherwise |
100 |
Table 14.1.1-2: Modulation and TBS index table for 
|
MCS Index |
Modulation Order |
TBS Index |
|
29 |
6 |
30 |
|
30 |
6 |
31 |
|
31 |
6 |
33 |
14.1.1.1 UE procedure for determining subframes for transmitting PSSCH for sidelink transmission mode 1
Within the PSCCH period (described in Clause 14.2.3), the subframes used for PSSCH are determined as follows:
– a subframe indicator bitmap 
and
are determined using the procedure described in Clause 14.1.1.1.1.
– a bitmap 
is determined using
and a subframe 
in the subframe pool is used for PSSCH if 
, otherwise the subframe 
is not used for PSSCH, where 
and
are described in Clause 14.1.4. The subframes used for PSSCH are denoted by
arranged in increasing order of subframe index and where
is the number of subframes that can be used for PSSCH transmission in a PSCCH period and is a multiple of 4.
14.1.1.1.1 Determination of subframe indicator bitmap
For FDD and TDD with UL/DL configuration belonging to {1,2,4,5},
is 8, and the mapping between Time Resource pattern Index (
) and subframe indicator bitmap
is given by table 14.1.1.1.1-1.
For TDD with UL/DL configuration 0,
is 7, and the mapping between Time Resource pattern Index (
) and subframe indicator bitmap
is given by table 14.1.1.1.1-2.
For TDD with UL/DL configuration belonging to {3,6},
is 6, and the mapping between Time Resource pattern Index (
) and subframe indicator bitmap
is given by table 14.1.1.1.1-3.
Table 14.1.1.1.1-1: Time Resource pattern Index mapping for
|
|
|
|
|
|
|
|
|
|
|
0 |
1 |
(1,0,0,0,0,0,0,0) |
37 |
4 |
(1,1,1,0,1,0,0,0) |
74 |
4 |
(0,1,1,1,0,0,0,1) |
|
1 |
1 |
(0,1,0,0,0,0,0,0) |
38 |
4 |
(1,1,0,1,1,0,0,0) |
75 |
4 |
(1,1,0,0,1,0,0,1) |
|
2 |
1 |
(0,0,1,0,0,0,0,0) |
39 |
4 |
(1,0,1,1,1,0,0,0) |
76 |
4 |
(1,0,1,0,1,0,0,1) |
|
3 |
1 |
(0,0,0,1,0,0,0,0) |
40 |
4 |
(0,1,1,1,1,0,0,0) |
77 |
4 |
(0,1,1,0,1,0,0,1) |
|
4 |
1 |
(0,0,0,0,1,0,0,0) |
41 |
4 |
(1,1,1,0,0,1,0,0) |
78 |
4 |
(1,0,0,1,1,0,0,1) |
|
5 |
1 |
(0,0,0,0,0,1,0,0) |
42 |
4 |
(1,1,0,1,0,1,0,0) |
79 |
4 |
(0,1,0,1,1,0,0,1) |
|
6 |
1 |
(0,0,0,0,0,0,1,0) |
43 |
4 |
(1,0,1,1,0,1,0,0) |
80 |
4 |
(0,0,1,1,1,0,0,1) |
|
7 |
1 |
(0,0,0,0,0,0,0,1) |
44 |
4 |
(0,1,1,1,0,1,0,0) |
81 |
4 |
(1,1,0,0,0,1,0,1) |
|
8 |
2 |
(1,1,0,0,0,0,0,0) |
45 |
4 |
(1,1,0,0,1,1,0,0) |
82 |
4 |
(1,0,1,0,0,1,0,1) |
|
9 |
2 |
(1,0,1,0,0,0,0,0) |
46 |
4 |
(1,0,1,0,1,1,0,0) |
83 |
4 |
(0,1,1,0,0,1,0,1) |
|
10 |
2 |
(0,1,1,0,0,0,0,0) |
47 |
4 |
(0,1,1,0,1,1,0,0) |
84 |
4 |
(1,0,0,1,0,1,0,1) |
|
11 |
2 |
(1,0,0,1,0,0,0,0) |
48 |
4 |
(1,0,0,1,1,1,0,0) |
85 |
4 |
(0,1,0,1,0,1,0,1) |
|
12 |
2 |
(0,1,0,1,0,0,0,0) |
49 |
4 |
(0,1,0,1,1,1,0,0) |
86 |
4 |
(0,0,1,1,0,1,0,1) |
|
13 |
2 |
(0,0,1,1,0,0,0,0) |
50 |
4 |
(0,0,1,1,1,1,0,0) |
87 |
4 |
(1,0,0,0,1,1,0,1) |
|
14 |
2 |
(1,0,0,0,1,0,0,0) |
51 |
4 |
(1,1,1,0,0,0,1,0) |
88 |
4 |
(0,1,0,0,1,1,0,1) |
|
15 |
2 |
(0,1,0,0,1,0,0,0) |
52 |
4 |
(1,1,0,1,0,0,1,0) |
89 |
4 |
(0,0,1,0,1,1,0,1) |
|
16 |
2 |
(0,0,1,0,1,0,0,0) |
53 |
4 |
(1,0,1,1,0,0,1,0) |
90 |
4 |
(0,0,0,1,1,1,0,1) |
|
17 |
2 |
(0,0,0,1,1,0,0,0) |
54 |
4 |
(0,1,1,1,0,0,1,0) |
91 |
4 |
(1,1,0,0,0,0,1,1) |
|
18 |
2 |
(1,0,0,0,0,1,0,0) |
55 |
4 |
(1,1,0,0,1,0,1,0) |
92 |
4 |
(1,0,1,0,0,0,1,1) |
|
19 |
2 |
(0,1,0,0,0,1,0,0) |
56 |
4 |
(1,0,1,0,1,0,1,0) |
93 |
4 |
(0,1,1,0,0,0,1,1) |
|
20 |
2 |
(0,0,1,0,0,1,0,0) |
57 |
4 |
(0,1,1,0,1,0,1,0) |
94 |
4 |
(1,0,0,1,0,0,1,1) |
|
21 |
2 |
(0,0,0,1,0,1,0,0) |
58 |
4 |
(1,0,0,1,1,0,1,0) |
95 |
4 |
(0,1,0,1,0,0,1,1) |
|
22 |
2 |
(0,0,0,0,1,1,0,0) |
59 |
4 |
(0,1,0,1,1,0,1,0) |
96 |
4 |
(0,0,1,1,0,0,1,1) |
|
23 |
2 |
(1,0,0,0,0,0,1,0) |
60 |
4 |
(0,0,1,1,1,0,1,0) |
97 |
4 |
(1,0,0,0,1,0,1,1) |
|
24 |
2 |
(0,1,0,0,0,0,1,0) |
61 |
4 |
(1,1,0,0,0,1,1,0) |
98 |
4 |
(0,1,0,0,1,0,1,1) |
|
25 |
2 |
(0,0,1,0,0,0,1,0) |
62 |
4 |
(1,0,1,0,0,1,1,0) |
99 |
4 |
(0,0,1,0,1,0,1,1) |
|
26 |
2 |
(0,0,0,1,0,0,1,0) |
63 |
4 |
(0,1,1,0,0,1,1,0) |
100 |
4 |
(0,0,0,1,1,0,1,1) |
|
27 |
2 |
(0,0,0,0,1,0,1,0) |
64 |
4 |
(1,0,0,1,0,1,1,0) |
101 |
4 |
(1,0,0,0,0,1,1,1) |
|
28 |
2 |
(0,0,0,0,0,1,1,0) |
65 |
4 |
(0,1,0,1,0,1,1,0) |
102 |
4 |
(0,1,0,0,0,1,1,1) |
|
29 |
2 |
(1,0,0,0,0,0,0,1) |
66 |
4 |
(0,0,1,1,0,1,1,0) |
103 |
4 |
(0,0,1,0,0,1,1,1) |
|
30 |
2 |
(0,1,0,0,0,0,0,1) |
67 |
4 |
(1,0,0,0,1,1,1,0) |
104 |
4 |
(0,0,0,1,0,1,1,1) |
|
31 |
2 |
(0,0,1,0,0,0,0,1) |
68 |
4 |
(0,1,0,0,1,1,1,0) |
105 |
4 |
(0,0,0,0,1,1,1,1) |
|
32 |
2 |
(0,0,0,1,0,0,0,1) |
69 |
4 |
(0,0,1,0,1,1,1,0) |
106 |
8 |
(1,1,1,1,1,1,1,1) |
|
33 |
2 |
(0,0,0,0,1,0,0,1) |
70 |
4 |
(0,0,0,1,1,1,1,0) |
107-127 |
reserved |
reserved |
|
34 |
2 |
(0,0,0,0,0,1,0,1) |
71 |
4 |
(1,1,1,0,0,0,0,1) |
|
|
|
|
35 |
2 |
(0,0,0,0,0,0,1,1) |
72 |
4 |
(1,1,0,1,0,0,0,1) |
|
|
|
|
36 |
4 |
(1,1,1,1,0,0,0,0) |
73 |
4 |
(1,0,1,1,0,0,0,1) |
|
|
|
Table 14.1.1.1.1-2: Time Resource pattern Index mapping for 
|
|
|
|
|
|
|
|
|
|
|
0 |
reserved |
reserved |
44 |
3 |
(0,0,1,1,0,1,0) |
88 |
3 |
(0,0,0,1,1,0,1) |
|
1 |
1 |
(1,0,0,0,0,0,0) |
45 |
4 |
(1,0,1,1,0,1,0) |
89 |
4 |
(1,0,0,1,1,0,1) |
|
2 |
1 |
(0,1,0,0,0,0,0) |
46 |
4 |
(0,1,1,1,0,1,0) |
90 |
4 |
(0,1,0,1,1,0,1) |
|
3 |
2 |
(1,1,0,0,0,0,0) |
47 |
5 |
(1,1,1,1,0,1,0) |
91 |
5 |
(1,1,0,1,1,0,1) |
|
4 |
1 |
(0,0,1,0,0,0,0) |
48 |
2 |
(0,0,0,0,1,1,0) |
92 |
4 |
(0,0,1,1,1,0,1) |
|
5 |
2 |
(1,0,1,0,0,0,0) |
49 |
3 |
(1,0,0,0,1,1,0) |
93 |
5 |
(1,0,1,1,1,0,1) |
|
6 |
2 |
(0,1,1,0,0,0,0) |
50 |
3 |
(0,1,0,0,1,1,0) |
94 |
5 |
(0,1,1,1,1,0,1) |
|
7 |
3 |
(1,1,1,0,0,0,0) |
51 |
4 |
(1,1,0,0,1,1,0) |
95 |
6 |
(1,1,1,1,1,0,1) |
|
8 |
1 |
(0,0,0,1,0,0,0) |
52 |
3 |
(0,0,1,0,1,1,0) |
96 |
2 |
(0,0,0,0,0,1,1) |
|
9 |
2 |
(1,0,0,1,0,0,0) |
53 |
4 |
(1,0,1,0,1,1,0) |
97 |
3 |
(1,0,0,0,0,1,1) |
|
10 |
2 |
(0,1,0,1,0,0,0) |
54 |
4 |
(0,1,1,0,1,1,0) |
98 |
3 |
(0,1,0,0,0,1,1) |
|
11 |
3 |
(1,1,0,1,0,0,0) |
55 |
5 |
(1,1,1,0,1,1,0) |
99 |
4 |
(1,1,0,0,0,1,1) |
|
12 |
2 |
(0,0,1,1,0,0,0) |
56 |
3 |
(0,0,0,1,1,1,0) |
100 |
3 |
(0,0,1,0,0,1,1) |
|
13 |
3 |
(1,0,1,1,0,0,0) |
57 |
4 |
(1,0,0,1,1,1,0) |
101 |
4 |
(1,0,1,0,0,1,1) |
|
14 |
3 |
(0,1,1,1,0,0,0) |
58 |
4 |
(0,1,0,1,1,1,0) |
102 |
4 |
(0,1,1,0,0,1,1) |
|
15 |
4 |
(1,1,1,1,0,0,0) |
59 |
5 |
(1,1,0,1,1,1,0) |
103 |
5 |
(1,1,1,0,0,1,1) |
|
16 |
1 |
(0,0,0,0,1,0,0) |
60 |
4 |
(0,0,1,1,1,1,0) |
104 |
3 |
(0,0,0,1,0,1,1) |
|
17 |
2 |
(1,0,0,0,1,0,0) |
61 |
5 |
(1,0,1,1,1,1,0) |
105 |
4 |
(1,0,0,1,0,1,1) |
|
18 |
2 |
(0,1,0,0,1,0,0) |
62 |
5 |
(0,1,1,1,1,1,0) |
106 |
4 |
(0,1,0,1,0,1,1) |
|
19 |
3 |
(1,1,0,0,1,0,0) |
63 |
6 |
(1,1,1,1,1,1,0) |
107 |
5 |
(1,1,0,1,0,1,1) |
|
20 |
2 |
(0,0,1,0,1,0,0) |
64 |
1 |
(0,0,0,0,0,0,1) |
108 |
4 |
(0,0,1,1,0,1,1) |
|
21 |
3 |
(1,0,1,0,1,0,0) |
65 |
2 |
(1,0,0,0,0,0,1) |
109 |
5 |
(1,0,1,1,0,1,1) |
|
22 |
3 |
(0,1,1,0,1,0,0) |
66 |
2 |
(0,1,0,0,0,0,1) |
110 |
5 |
(0,1,1,1,0,1,1) |
|
23 |
4 |
(1,1,1,0,1,0,0) |
67 |
3 |
(1,1,0,0,0,0,1) |
111 |
6 |
(1,1,1,1,0,1,1) |
|
24 |
2 |
(0,0,0,1,1,0,0) |
68 |
2 |
(0,0,1,0,0,0,1) |
112 |
3 |
(0,0,0,0,1,1,1) |
|
25 |
3 |
(1,0,0,1,1,0,0) |
69 |
3 |
(1,0,1,0,0,0,1) |
113 |
4 |
(1,0,0,0,1,1,1) |
|
26 |
3 |
(0,1,0,1,1,0,0) |
70 |
3 |
(0,1,1,0,0,0,1) |
114 |
4 |
(0,1,0,0,1,1,1) |
|
27 |
4 |
(1,1,0,1,1,0,0) |
71 |
4 |
(1,1,1,0,0,0,1) |
115 |
5 |
(1,1,0,0,1,1,1) |
|
28 |
3 |
(0,0,1,1,1,0,0) |
72 |
2 |
(0,0,0,1,0,0,1) |
116 |
4 |
(0,0,1,0,1,1,1) |
|
29 |
4 |
(1,0,1,1,1,0,0) |
73 |
3 |
(1,0,0,1,0,0,1) |
117 |
5 |
(1,0,1,0,1,1,1) |
|
30 |
4 |
(0,1,1,1,1,0,0) |
74 |
3 |
(0,1,0,1,0,0,1) |
118 |
5 |
(0,1,1,0,1,1,1) |
|
31 |
5 |
(1,1,1,1,1,0,0) |
75 |
4 |
(1,1,0,1,0,0,1) |
119 |
6 |
(1,1,1,0,1,1,1) |
|
32 |
1 |
(0,0,0,0,0,1,0) |
76 |
3 |
(0,0,1,1,0,0,1) |
120 |
4 |
(0,0,0,1,1,1,1) |
|
33 |
2 |
(1,0,0,0,0,1,0) |
77 |
4 |
(1,0,1,1,0,0,1) |
121 |
5 |
(1,0,0,1,1,1,1) |
|
34 |
2 |
(0,1,0,0,0,1,0) |
78 |
4 |
(0,1,1,1,0,0,1) |
122 |
5 |
(0,1,0,1,1,1,1) |
|
35 |
3 |
(1,1,0,0,0,1,0) |
79 |
5 |
(1,1,1,1,0,0,1) |
123 |
6 |
(1,1,0,1,1,1,1) |
|
36 |
2 |
(0,0,1,0,0,1,0) |
80 |
2 |
(0,0,0,0,1,0,1) |
124 |
5 |
(0,0,1,1,1,1,1) |
|
37 |
3 |
(1,0,1,0,0,1,0) |
81 |
3 |
(1,0,0,0,1,0,1) |
125 |
6 |
(1,0,1,1,1,1,1) |
|
38 |
3 |
(0,1,1,0,0,1,0) |
82 |
3 |
(0,1,0,0,1,0,1) |
126 |
6 |
(0,1,1,1,1,1,1) |
|
39 |
4 |
(1,1,1,0,0,1,0) |
83 |
4 |
(1,1,0,0,1,0,1) |
127 |
7 |
(1,1,1,1,1,1,1) |
|
40 |
2 |
(0,0,0,1,0,1,0) |
84 |
3 |
(0,0,1,0,1,0,1) |
|
|
|
|
41 |
3 |
(1,0,0,1,0,1,0) |
85 |
4 |
(1,0,1,0,1,0,1) |
|
|
|
|
42 |
3 |
(0,1,0,1,0,1,0) |
86 |
4 |
(0,1,1,0,1,0,1) |
|
|
|
|
43 |
4 |
(1,1,0,1,0,1,0) |
87 |
5 |
(1,1,1,0,1,0,1) |
|
|
|
Table 14.1.1.1.1-3: Time Resource pattern Index mapping for 
|
|
|
|
|
|
|
|
|
|
|
0 |
reserved |
reserved |
22 |
3 |
(0,1,1,0,1,0) |
44 |
3 |
(0,0,1,1,0,1) |
|
1 |
1 |
(1,0,0,0,0,0) |
23 |
4 |
(1,1,1,0,1,0) |
45 |
4 |
(1,0,1,1,0,1) |
|
2 |
1 |
(0,1,0,0,0,0) |
24 |
2 |
(0,0,0,1,1,0) |
46 |
4 |
(0,1,1,1,0,1) |
|
3 |
2 |
(1,1,0,0,0,0) |
25 |
3 |
(1,0,0,1,1,0) |
47 |
5 |
(1,1,1,1,0,1) |
|
4 |
1 |
(0,0,1,0,0,0) |
26 |
3 |
(0,1,0,1,1,0) |
48 |
2 |
(0,0,0,0,1,1) |
|
5 |
2 |
(1,0,1,0,0,0) |
27 |
4 |
(1,1,0,1,1,0) |
49 |
3 |
(1,0,0,0,1,1) |
|
6 |
2 |
(0,1,1,0,0,0) |
28 |
3 |
(0,0,1,1,1,0) |
50 |
3 |
(0,1,0,0,1,1) |
|
7 |
3 |
(1,1,1,0,0,0) |
29 |
4 |
(1,0,1,1,1,0) |
51 |
4 |
(1,1,0,0,1,1) |
|
8 |
1 |
(0,0,0,1,0,0) |
30 |
4 |
(0,1,1,1,1,0) |
52 |
3 |
(0,0,1,0,1,1) |
|
9 |
2 |
(1,0,0,1,0,0) |
31 |
5 |
(1,1,1,1,1,0) |
53 |
4 |
(1,0,1,0,1,1) |
|
10 |
2 |
(0,1,0,1,0,0) |
32 |
1 |
(0,0,0,0,0,1) |
54 |
4 |
(0,1,1,0,1,1) |
|
11 |
3 |
(1,1,0,1,0,0) |
33 |
2 |
(1,0,0,0,0,1) |
55 |
5 |
(1,1,1,0,1,1) |
|
12 |
2 |
(0,0,1,1,0,0) |
34 |
2 |
(0,1,0,0,0,1) |
56 |
3 |
(0,0,0,1,1,1) |
|
13 |
3 |
(1,0,1,1,0,0) |
35 |
3 |
(1,1,0,0,0,1) |
57 |
4 |
(1,0,0,1,1,1) |
|
14 |
3 |
(0,1,1,1,0,0) |
36 |
2 |
(0,0,1,0,0,1) |
58 |
4 |
(0,1,0,1,1,1) |
|
15 |
4 |
(1,1,1,1,0,0) |
37 |
3 |
(1,0,1,0,0,1) |
59 |
5 |
(1,1,0,1,1,1) |
|
16 |
1 |
(0,0,0,0,1,0) |
38 |
3 |
(0,1,1,0,0,1) |
60 |
4 |
(0,0,1,1,1,1) |
|
17 |
2 |
(1,0,0,0,1,0) |
39 |
4 |
(1,1,1,0,0,1) |
61 |
5 |
(1,0,1,1,1,1) |
|
18 |
2 |
(0,1,0,0,1,0) |
40 |
2 |
(0,0,0,1,0,1) |
62 |
5 |
(0,1,1,1,1,1) |
|
19 |
3 |
(1,1,0,0,1,0) |
41 |
3 |
(1,0,0,1,0,1) |
63 |
6 |
(1,1,1,1,1,1) |
|
20 |
2 |
(0,0,1,0,1,0) |
42 |
3 |
(0,1,0,1,0,1) |
64-127 |
reserved |
reserved |
|
21 |
3 |
(1,0,1,0,1,0) |
43 |
4 |
(1,1,0,1,0,1) |
|
|
|
14.1.1.2 UE procedure for determining resource blocks for transmitting PSSCH for sidelink transmission mode 1
The set of resource blocks is determined using the procedure described in Clause 14.1.1.2.1 and 14.1.1.2.2.
14.1.1.2.1 PSSCH resource allocation for sidelink transmission mode 1
The resource allocation and hopping field of the SCI format 0 is used to determine a set of indices denoted by 
(0 ≤ 
< 
), a starting index 
, and a number of allocated PRBs 
and 
using the procedure in Clause 8.1.1, and 8.4 (for sidelink frequency hopping with type 1 or type 2 hopping) with the following exceptions:
– the term ‘PUSCH’ in Clauses 8.1.1 and 8.4 is replaced with ‘PSSCH’.
– the quantity 
in Clause 8.1.1 is replaced with 
.
– the quantity 
in Clauses 8.1.1 and 8.4 is replaced with 
.
– the quantity
in Clauses 8.1.1and 8.4 is replaced with 
.
– the quantity
in Clauses 8.1.1 and 8.4 is replaced with
.
– the quantity 
in Clause 8.4 is replaced with 
.
– the quantity 
is given by higher layer parameter rb-Offset-r12 associated with the corresponding PSSCH resource configuration.
– the quantity 
is given by higher layer parameter numSubbands-r12 associated with the corresponding PSSCH resource configuration.
14.1.1.2.2 PSSCH frequency hopping for sidelink transmission mode 1
If sidelink frequency hopping with type 1 hopping is enabled, the set of physical resource blocks for PSSCH transmission is determined using Clause 8.4 with the following exceptions:
– the term ‘PUSCH’ is replaced with ‘PSSCH’.
– only inter-subframe hopping shall be used.
– the quantity 
is replaced with 
.
– the quantity 
is replaced with 
.
– the quantity 
is replaced with 
.
– the quantity 
is given by higher layer parameter rb-Offset-r12 associated with the PSSCH resource configuration.
– the frequency hopping field in the SCI format 0 is used instead of DCI format 0.
– the quantity
is replaced with 
.
– the quantity 
is replaced with 
.
– for odd 
(described in Clause 9.2.4 of [3]), the set of physical resource blocks for PSSCH transmission are 
contiguous resource blocks starting from PRB with index
.
– for even 
(described in Clause 9.2.4 of [3]), the set of physical resource blocks for PSSCH transmission are 
contiguous resource blocks starting from PRB with index
.
14.1.1.3 UE procedure for determining subframes for transmitting PSSCH for sidelink transmission mode 2
For FDD or for TDD, and the UE not configured with the higher layer parameter trpt-Subset-r12
– The allowed values of
correspond to the values of 
satisfying 
, for a value of 
in 
, where 
and 
are determined from table 14.1.1.3-1.
For FDD or for TDD with UL/DL configuration belonging to {0,1,2,3,4,6}, and the UE configured with the higher layer parameter trpt-Subset-r12
– The allowed values of
correspond to the values of 
satisfying 
, for values of 
in 
satisfying 
, 
and where 
and 
are determined from table 14.1.1.3-1, and
is the bitmap indicated by trpt-Subset-r12.
Table 14.1.1.3-1: Determination of
and 
for sidelink transmission mode 2
|
|
|
|
|
|
|
|
|
FDD and TDD with UL/DL configuration 1,2,4,5 |
3 |
1 |
2 |
4 |
– |
– |
|
TDD with UL/DL configuration 0 |
5 |
1 |
2 |
3 |
4 |
5 |
|
TDD with UL/DL configuration 3,6 |
4 |
1 |
2 |
3 |
4 |
– |
Within a PSCCH period, the subframes used for PSSCH are determined as follows:
– a subframe indicator bitmap 
and
are determined using the procedure described in Clause 14.1.1.1.1 from the allowed values of 
described in this Clause.
– a bitmap 
is determined using
and a subframe 
in the subframe pool is used for PSSCH if 
, otherwise the subframe 
is not used for PSSCH, where 
and
are described in Clause 14.1.3. The subframes used for PSSCH are denoted by
arranged in increasing order of subframe index and where
is the number of subframes that can be used for PSSCH transmission in a PSCCH period and is a multiple of 4.
14.1.1.4 UE procedure for determining resource blocks for transmitting PSSCH for sidelink transmission mode 2
The set of resource blocks within the resource block pool (defined in 14.1.3) is determined using the Clause 14.1.1.2.1 .
If sidelink frequency hopping with type 1 hopping is enabled, the set of physical resource blocks for PSSCH transmission is determined using Clause 14.1.1.2.2 with the following exceptions
– the quantity 
is replaced with 
(defined in 14.1.3).
– for odd 
, the set of physical resource blocks for PSSCH transmission are given by 
contiguous resource blocks
belonging to the resource block pool, where 
.
– for even 
, the set of physical resource blocks for PSSCH transmission are given by 
contiguous resource blocks
belonging to the resource block pool, where 
.
14.1.1.4A UE procedure for determining subframes and resource blocks for transmitting PSSCH for sidelink transmission mode 3
If the UE has a configured sidelink grant (described in [8]) in subframe 
with the corresponding PSCCH resource m (described in Clause 14.2.4), the resource blocks and subframes of the corresponding PSSCH transmissions are determined according to 14.1.1.4C.
If the UE has a configured sidelink grant (described in [8]) for an SL SPS configuration activated by Clause 14.2.1 and if a set of sub-channels in subframe 
is determined as the time and frequency resource for PSSCH transmission corresponding to the configured sidelink grant (described in [8]) of the SL SPS configuration, the same set of sub-channels in subframes 
are also determined for PSSCH transmissions corresponding to the same sidelink grant where j=1, 2,…, 
, and 
is determined by Clause 14.1.5. Here, is the sidelink SPS interval of the corresponding SL SPS configuration.
14.1.1.4B UE procedure for determining subframes and resource blocks for transmitting PSSCH and reserving resources for sidelink transmission mode 4
If the UE has a configured sidelink grant (described in [8]) in subframe 
with the corresponding PSCCH resource m (described in Clause 14.2.4), the resource blocks and subframes of the corresponding PSSCH transmissions are determined according to 14.1.1.4C.
The number of subframes in one set of the time and frequency resources for transmission opportunities of PSSCH is given by 
where 
= 10*SL_RESOURCE_RESELECTION_COUNTER [8] if configured else 
is set to 1.
If a set of sub-channels in subframe 
is determined as the time and frequency resource for PSSCH transmission corresponding to the configured sidelink grant (described in [8]), the same set of sub-channels in subframes 
are also determined for PSSCH transmissions corresponding to the same sidelink grant where j=1, 2,…, 
, 
, and 
is determined by Clause 14.1.5. Here, 
is the resource reservation interval indicated by higher layers.
If a UE is configured with high layer parameter cr-Limit and transmits PSSCH in subframe n, the UE shall ensure the following limits for any priority value k;
where 
is the CR evaluated in subframe n-4 for the PSSCH transmissions with "Priority" field in the SCI set to i, and 
corresponds to the high layer parameter cr-Limit that is associated with the priority value k and the CBR range which includes the CBR measured in subframe n-4. It is up to UE implementation how to meet the above limits, including dropping the transmissions in subframe n.
14.1.1.4C UE procedure for determining subframes and resource blocks for PSSCH transmission associated with an SCI format 1
The set of subframes and resource blocks for PSSCH transmission is determined by the resource used for the PSCCH transmission containing the associated SCI format 1, and "Frequency resource location of the initial transmission and retransmission" field, "Retransmission index" field, "Time gap between initial transmission and retransmission" field of the associated SCI format 1 as described below.
"Frequency resource location of the initial transmission and retransmission" field in the SCI format 1 is equal to resource indication value (RIV) corresponding to a starting sub-channel index (
) and a length in terms of contiguously allocated sub-channels (
≥ 1). The resource indication value is defined by
if 
then
else
where is the total number of sub-channels in the pool determined by higher layer parameter numSubchannel.
For the SCI format 1 transmitted on the PSCCH resource m (described in subcaluse 14.2.4) in subframe 
, the set of subframes and sub-channels for the corresponding PSSCH are determined as follows:
– if is zero,
– the time and frequency resources for the corresponding PSSCH is given by
– sub-channel(s) 
in subframe 
.
– else if "Retransmission index" in the SCI format 1 is zero,
– the time and frequency resources for the corresponding PSSCH is given by
– sub-channel(s) 
in subframe 
, and
– sub-channels 
in subframe 
.
– else if "Retransmission index" in the SCI format 1 is one,
– the time and frequency resources for the corresponding PSSCH is given by
– sub-channels 
in subframe 
, and
– sub-channels 
in subframe 
.
where is the value indicated by "Time gap between initial transmission and retransmission" field the SCI format 1 and 
is determined by Clause 14.1.5.
When sub-channel(s) 
are determined in a subframe for the transmission of PSSCH, the set of resource blocks determined for the PSSCH transmission is given by 
contiguous resource blocks with the physical resource block number 
for 
. Here, 
and 
are given by higher layer parameters startRBSubchannel and sizeSubchannel, respectively. The parameters 
and 
are given as follows:
– if a pool is (pre)configured such that a UE always transmits PSCCH and the corresponding PSSCH in adjacent resource blocks in a subframe, 
and 
is the largest integer that fulfils
where 
is a set of non-negative integers
– if a pool is (pre)configured such that a UE may transmit PSCCH and the corresponding PSSCH in non-adjacent resource blocks in a subframe, 
and 
is the largest integer that fulfils
where 
is a set of non-negative integers.
14.1.1.5 UE procedure for PSSCH power control
For sidelink transmission mode 1 and PSCCH period i, the UE transmit power 
for PSSCH transmission is given by the following
– if the TPC command field in configured sidelink grant (described in [8]) for PSCCH period i is set to 0
– 
– if the TPC command field in configured sidelink grant (described in [8]) for PSCCH period i is set to 1
– 
[dBm]
where 
is defined in [6], and 
is the bandwidth of the PSSCH resource assignment expressed in number of resource block and 
where
is defined in Clause 5.1.1.1. 
and 
are provided by higher layer parameters p0-r12 and alpha-r12, respectively and that are associated with the corresponding PSSCH resource configuration.
For sidelink transmission mode 2, the UE transmit power 
for PSSCH transmission is given by
[dBm] ,
where 
is defined in [6], and 
is the bandwidth of the PSSCH resource assignment expressed in number of resource blocks and 
where
is defined in Clause 5.1.1.1. 
and 
are provided by higher layer parameters p0-r12 and alpha-r12, respectively and that are associated with the corresponding PSSCH resource configuration.
For sidelink transmission mode 3, the UE transmit power 
for PSSCH transmission is given by
[dBm] ,
where 
is defined in [6], and 
is the bandwidth of the PSSCH resource assignment expressed in number of resource blocks and 
where
is defined in Clause 5.1.1.1. 
and 
are provided by higher layer parameters p0SL-V2V and alphaSL-V2V, respectively and that are associated with the corresponding PSSCH resource configuration.
For sidelink transmission mode 4, the UE transmit power 
for PSSCH transmission in subframe n is given by
[dBm] ,
where 
is defined in [6], 
is the bandwidth of the PSSCH resource assignment expressed in number of resource blocks, 
, and 
where
is defined in Clause 5.1.1.1. 
and 
are provided by higher layer parameters p0SL-V2V and alphaSL-V2V, respectively and that are associated with the corresponding PSSCH resource configuration. If higher layer parameter maxTxpower is configured then
else
where
is set to a maxTxpower value based on the priority level of the PSSCH and the CBR range which includes the CBR measured in subframe n-4.
14.1.1.6 UE procedure for determining the subset of resources to be reported to higher layers in PSSCH resource selection in sidelink transmission mode 4 and in sensing measurement in sidelink transmission mode 3
In sidelink transmission mode 4, when requested by higher layers in subframe n for a carrier, the UE shall determine the set of resources to be reported to higher layers for PSSCH transmission according to the steps described in this Clause. Parameters 
the number of sub-channels to be used for the PSSCH transmission in a subframe, 
the resource reservation interval, and 
the priority to be transmitted in the associated SCI format 1 by the UE are all provided by higher layers (described in [8]). 
is determined according to Clause 14.1.1.4B.
In sidelink transmission mode 3, when requested by higher layers in subframe n for a carrier, the UE shall determine the set of resources to be reported to higher layers in sensing measurement according to the steps described in this Clause. Parameters 
, 
and
are all provided by higher layers (described in [11]). 
is determined by
=10*SL_RESOURCE_RESELECTION_COUNTER, where SL_RESOURCE_RESELECTION_COUNTER is provided by higher layers [11].
If partial sensing is not configured by higher layers then the following steps are used:
1) A candidate single-subframe resource for PSSCH transmission 
is defined as a set of 
contiguous sub-channels with sub-channel x+j in subframe 
where 
. The UE shall assume that any set of 
contiguous sub-channels included in the corresponding PSSCH resource pool (described in 14.1.5) within the time interval 
corresponds to one candidate single-subframe resource, where selections of 
and 
are up to UE implementations under 
and 
, if 
is provided by higher layers for 
, otherwise 
. UE selection of 
shall fulfil the latency requirement. The total number of the candidate single-subframe resources is denoted by
.
2) The UE shall monitor subframes 
,
, …, 
except for those in which its transmissions occur, where 
if subframe n belongs to the set 
, otherwise subframe 
is the first subframe after subframe n belonging to the set 
. The UE shall perform the behaviour in the following steps based on PSCCH decoded and S-RSSI measured in these subframes.
3) The parameter 
is set to the value indicated by the i-th SL-ThresPSSCH-RSRP field in SL-ThresPSSCH-RSRP-List where .
4) The set 
is initialized to the union of all the candidate single-subframe resources. The set 
is initialized to an empty set.
5) The UE shall exclude any candidate single-subframe resource 
from the set 
if it meets all the following conditions:
– the UE has not monitored subframe 
in Step 2.
– there is an integer j which meets 
where j=0, 1, …, 
, 
, k is any value allowed by the higher layer parameter restrictResourceReservationPeriod and q=1,2,…,Q. Here, 
if 
and 
, where 
if subframe n belongs to the set 
, otherwise subframe 
is the first subframe belonging to the set 
after subframe n; and 
otherwise.
6) The UE shall exclude any candidate single-subframe resource 
from the set 
if it meets all the following conditions:
– the UE receives an SCI format 1 in subframe 
, and "Resource reservation" field and "Priority" field in the received SCI format 1 indicate the values 
and 
, respectively according to Clause 14.2.1.
– PSSCH-RSRP measurement according to the received SCI format 1 is higher than 
.
– the SCI format received in subframe 
or the same SCI format 1 which is assumed to be received in subframe(s) 
determines according to 14.1.1.4C the set of resource blocks and subframes which overlaps with 
for q=1, 2, …, Q and j=0, 1, …, 
. Here, 
if 
and 
, where 
if subframe n belongs to the set 
, otherwise subframe 
is the first subframe after subframe n belonging to the set 
; otherwise 
.
7) If the number of candidate single-subframe resources remaining in the set 
is smaller than 
, then Step 4 is repeated with 
increased by 3 dB.
8) For a candidate single-subframe resource 
remaining in the set
, the metric 
is defined as the linear average of S-RSSI measured in sub-channels x+k for 
in the monitored subframes in Step 2 that can be expressed by 
for a non-negative integer j if 
, and 
for a non-negative integer j otherwise.
9) The UE moves the candidate single-subframe resource 
with the smallest metric 
from the set 
to 
. This step is repeated until the number of candidate single-subframe resources in the set 
becomes greater than or equal to 
,
10) When the UE is configured by upper layers to transmit using resource pools on multiple carriers, it shall exclude a candidate single-subframe resource 
from 
if the UE does not support transmission in the candidate single-subframe resource in the carrier under the assumption that transmissions take place in other carrier(s) using the already selected resources due to its limitation in the number of simultaneous transmission carriers, its limitation in the supported carrier combinations, or interruption for RF retuning time [10].
The UE shall report set 
to higher layers.
If partial sensing is configured by higher layers then the following steps are used:
1) A candidate single-subframe resource for PSSCH transmission 
is defined as a set of 
contiguous sub-channels with sub-channel x+j in subframe 
where 
. The UE shall determine by its implementation a set of subframes which consists of at least 
subframes within the time interval 
where selections of 
and 
are up to UE implementations under 
and 
, if 
is provided by higher layers for 
, otherwise 
. UE selection of 
shall fulfil the latency requirement and 
shall be greater than or equal to the high layer parameter minNumCandidateSF. The UE shall assume that any set of 
contiguous sub-channels included in the corresponding PSSCH resource pool (described in 14.1.5) within the determined set of subframes correspond to one candidate single-subframe resource. The total number of the candidate single-subframe resources is denoted by
.
2) If a subframe 
is included in the set of subframes in Step 1, the UE shall monitor any subframe 
if k-th bit of the high layer parameter gapCandidateSensing is set to 1. The UE shall perform the behaviour in the following steps based on PSCCH decoded and S-RSSI measured in these subframes.
3) The parameter 
is set to the value indicated by the i-th SL-ThresPSSCH-RSRP field in SL-ThresPSSCH-RSRP-List where .
4) The set 
is initialized to the union of all the candidate single-subframe resources. The set 
is initialized to an empty set.
5) The UE shall exclude any candidate single-subframe resource 
from the set 
if it meets all the following conditions:
– the UE receives an SCI format 1 in subframe 
, and "Resource reservation" field and "Priority" field in the received SCI format 1 indicate the values 
and 
, respectively according to Clause 14.2.1.
– PSSCH-RSRP measurement according to the received SCI format 1 is higher than 
.
– the SCI format received in subframe 
or the same SCI format 1 which is assumed to be received in subframe(s) 
determines according to 14.1.1.4C the set of resource blocks and subframes which overlaps with 
for q=1, 2, …, Q and j=0, 1, …, 
. Here, 
if 
and 
, where 
is the last subframe of the 
subframes , and 
otherwise.
6) If the number of candidate single-subframe resources remaining in the set 
is smaller than 
, then Step 4 is repeated with 
increased by 3 dB.
7) For a candidate single-subframe resource 
remaining in the set
, the metric 
is defined as the linear average of S-RSSI measured in sub-channels x+k for 
in the monitored subframes in Step 2 that can be expressed by 
for a non-negative integer j.
8) The UE moves the candidate single-subframe resource 
with the smallest metric 
from the set 
to 
. This step is repeated until the number of candidate single-subframe resources in the set 
becomes greater than or equal to 
.
9) When the UE is configured by upper layers to transmit using resource pools on multiple carriers, it shall exclude a candidate single-subframe resource 
from 
if the UE does not support transmission in the candidate single-subframe resource in the carrier under the assumption that transmissions take place in other carrier(s) using the already selected resources due to its limitation in the number of simultaneous transmission carriers, its limitation in the supported carrier combinations, or interruption for RF retuning time [10].
The UE shall report set to higher layers.
If transmission based on random selection is configured by upper layers and when the UE is configured by upper layers to transmit using resource pools on multiple carriers, the following steps are used:
1) A candidate single-subframe resource for PSSCH transmission 
is defined as a set of 
contiguous sub-channels with sub-channel x+j in subframe 
where 
. The UE shall assume that any set of 
contiguous sub-channels included in the corresponding PSSCH resource pool (described in 14.1.5) within the time interval 
corresponds to one candidate single-subframe resource, where selections of 
and 
are up to UE implementations under 
and 
, if 
is provided by higher layers for 
, otherwise 
. UE selection of 
shall fulfil the latency requirement. The total number of the candidate single-subframe resources is denoted by
.
2) The set 
is initialized to the union of all the candidate single-subframe resources. The set 
is initialized to an empty set.
3) The UE moves the candidate single-subframe resource 
from the set 
to 
.
4) The UE shall exclude a candidate single-subframe resource 
from 
if the UE does not support transmission in the candidate single-subframe resource in the carrier under the assumption that transmissions take place in other carrier(s) using the already selected resources due to its limitation in the number of simultaneous transmission carriers, its limitation in the supported carrier combinations, or interruption for RF retuning time [10].
The UE shall report set 
to higher layers.
14.1.1.7 Conditions for selecting resources when the number of HARQ transmissions is two in sidelink transmission mode 4
When a set of subframes 
for 
have been selected for a set of transmission opportunities of PSSCH, a set of subframes 
for 
for another set of transmission opportunities of PSSCH shall meet the conditions 
, 
and mod where 
and 
is the maximum number of transmission opportunities of PSSCH in a selected subframe set. Here, 
is the resource reservation interval provided by higher layers.