SIB | Description | Comment |
---|---|---|
MIB | Master Information Block | SFN, SCS, SIB1 PDCCH resource, cell barred |
1 | cell re-selection information, PLMN, SI scheduling info, IMS support | Scheduling of other SIBs, UAC |
2 | cell re-selection information common for intra-frequency, inter-frequency and/ or inter-RAT | |
3 | intra-frequency cell re-selection | PCI, q-Offset, q-RxLev, q-Qual, Black cell list |
4 | inter-frequency cell re-selection | ARFCN |
5 | inter-RAT cell re-selection | |
6 | ETWS primary notification | |
7 | ETWS secondary notification | |
8 | CMAS notification | |
9 | GPS time and Coordinated Universal Time (UTC) |
μ | SCS Δ = 2μ x 15 | PRB bandwidth | Frame duration | Subframe duration | Slots per frame | Slots per subframe | Slot duration | Symbols per slot | Symbol duration | Supported for data | Supported for sync |
0 | 15 kHz | 180 kHz | 10 ms | 1 ms | 10 | 1 | 1 ms | 14 | 71.43 μs | Yes | Yes |
---|---|---|---|---|---|---|---|---|---|---|---|
1 | 30 kHz | 360 kHz | 10 ms | 1 ms | 20 | 2 | 500 μs | 14 | 35.71 μs | Yes | Yes |
2 | 60 kHz | 720 kHz | 10 ms | 1 ms | 40 | 4 | 250 μs | 14 | 17.86 μs | Yes | No |
3 | 120 kHz | 1.44 MHz | 10 ms | 1 ms | 80 | 8 | 125 μs | 14 | 8.93 μs | Yes | Yes |
4 | 240 kHz | 2.88 MHz | 10 ms | 1 ms | 160 | 16 | 62.5 μs | 14 | 4.46 μs | No | Yes |
5 | 480 kHz | 5.76 MHz | 10 ms | 1 ms | 320 | 32 | 31.25 μs | 14 | 2.23 μs | Yes | Yes |
6 | 960 kHz | 11.52 MHz | 10 ms | 1 ms | 640 | 64 | 15.625 μs | 14 | 1.12 μs | Yes | Yes |
μ | SCS (kHz) | 5 MHz | 10 MHz | 15 MHz | 20 MHz | 25 MHz | 30 MHz | 35 MHz | 40 MHz | 45 MHz | 50 MHz | 60 MHz | 70 MHz | 80 MHz | 90 MHz | 100 MHz |
0 BW | 15 | 25 4.5 | 52 9.4 | 79 14.2 | 106 19.1 | 133 23.9 | 160 28.8 | 188 33.8 | 216 38.9 | 242 43.6 | 270 48.6 | N/A | N/A | N/A | N/A | N/A |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 BW | 30 | 11 4 | 24 8.6 | 38 13.7 | 51 18.4 | 65 23.4 | 78 28.1 | 92 33.1 | 106 38.2 | 119 42.8 | 133 47.9 | 162 58.3 | 189 68 | 217 78.1 | 245 88.2 | 273 98.3 |
2 BW | 60 | N/A | 11 7.9 | 18 13 | 24 17.3 | 31 22.3 | 38 27.4 | 44 31.7 | 51 36.7 | 58 41.8 | 65 46.8 | 79 56.9 | 93 67 | 107 77 | 121 87.1 | 135 97.2 |
μ | SCS (kHz) | 50 MHz | 100 MHz | 200 MHz | 400 MHz |
2 BW | 60 | 66 47.5 | 132 95 | 264 190.1 | N/A |
---|---|---|---|---|---|
3 BW | 120 | 32 46.1 | 66 95 | 132 190.1 | 264 380.2 |
μ | SCS (kHz) | 100 MHz | 400 MHz | 800 MHz | 1600 MHz | 2000 MHz |
3 BW | 120 | 66 95 | 264 380.2 | N/A | N/A | N/A |
---|---|---|---|---|---|---|
5 BW | 480 | N/A | 66 380.2 | 124 714.2 | 248 1428.5 | N/A |
6 BW | 960 | N/A | 33 380.2 | 62 714.2 | 124 1428.5 | 148 1705 |
μ | SCS (kHz) | 5 MHz | 10 MHz | 15 MHz | 20 MHz | 25 MHz | 30 MHz | 35 MHz | 40 MHz | 45 MHz | 50 MHz | 60 MHz | 70 MHz | 80 MHz | 90 MHz | 100 MHz |
0 | 15 | 242.5 | 312.5 | 382.5 | 452.5 | 522.5 | 592.5 | 572.5 | 552.5 | 712.5 | 692.5 | N/A | N/A | N/A | N/A | N/A |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | 30 | 505 | 665 | 645 | 805 | 785 | 945 | 925 | 905 | 1065 | 1045 | 825 | 965 | 925 | 885 | 845 |
2 | 60 | N/A | 1010 | 990 | 1330 | 1310 | 1290 | 1630 | 1610 | 1590 | 1570 | 1530 | 1490 | 1450 | 1410 | 1370 |
μ | SCS (kHz) | 50 MHz | 100 MHz | 200 MHz | 400 MHz |
2 | 60 | 1210 | 2450 | 4930 | N/A |
---|---|---|---|---|---|
3 | 120 | 1900 | 2420 | 4900 | 9860 |
4 | 240 | N/A | 3800 | 7720 | 15560 |
μ | SCS (kHz) | 100 MHz | 400 MHz | 800 MHz | 1600 MHz | 2000 MHz |
3 | 120 | 2420 | 9860 | N/A | N/A | N/A |
---|---|---|---|---|---|---|
5 | 480 | N/A | 9680 | 42640 | 85520 | N/A |
6 | 960 | N/A | 9440 | 42400 | 85280 | 147040 |
A control-channel element consists (CCE) of 6 resource-element groups (REGs)
A resource-element group (REG) equals one resource block during one OFDM symbol (1 REG = 12 RE)
For 273 PRBs, there is maximum 273/6 = 45 CCEs, or 45*6 = 270 REGs, on 1 symbol
μ | SCS (kHz) | 5 MHz | 10 MHz | 15 MHz | 20 MHz | 25 MHz | 30 MHz | 35 MHz | 40 MHz | 45 MHz | 50 MHz | 60 MHz | 70 MHz | 80 MHz | 90 MHz | 100 MHz |
0 | 15 | 4 | 8 | 13 | 17 | 22 | 26 | 31 | 36 | 40 | 45 | N/A | N/A | N/A | N/A | N/A |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | 30 | 1 | 4 | 6 | 8 | 10 | 13 | 15 | 17 | 19 | 22 | 27 | 31 | 36 | 40 | 45 |
2 | 60 | N/A | 1 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 13 | 15 | 17 | 20 | 22 |
μ | SCS (kHz) | 50 MHz | 100 MHz | 200 MHz | 400 MHz |
2 | 60 | 11 | 22 | 44 | N/A |
---|---|---|---|---|---|
3 | 120 | 5 | 11 | 22 | 44 |
μ | SCS (kHz) | 100 MHz | 400 MHz | 800 MHz | 1600 MHz | 2000 MHz |
3 | 120 | 11 | 44 | N/A | N/A | N/A |
---|---|---|---|---|---|---|
5 | 480 | N/A | 11 | 20 | 41 | N/A |
6 | 960 | N/A | 5 | 10 | 20 | 24 |
A device receives a timing advance command from the network and adjusts uplink timing for PUCCH / PUSCH / SRS transmission
Basic time unit : Tc = 1 ÷ (480 × 103 × 4096) seconds
NTA = timing offset between uplink and downlink radio frames at the UE, expressed in units of Tc
Distance between a device and the network antenna :
A timing advance of one Tc is equivalent to a distance of (3 × 108 × 1 ÷ (480 × 103 × 4096)) ÷ 2 = 0,076 m
Distance = propagation speed (light speed) × one Tc delay ÷ 2 (downlink path + uplink path)
Initial absolute Random Access Response MAC payload (12 bits) TA range = 0, 1, 2,..., 3846
Timing adjustment is always positive
NTA = TA x 16 x 64 ÷ 2 μ
Example : TA = 1, μ = 1 → NTA = 1 x 512 Tc
Distance equals 512 x 0.076 m = 39.06 m
Maximum absolute distance between a device and the network antenna : 3846 x 39.06 m = 150.234 km (93.35 mi)
Periodic relative Timing Advance Command MAC Control Element (6 bits) TA range = 0, 1, 2,..., 63
Timing adjustment may be negative, null or positive
NTA_new = NTA_old + (TA - 31) x 16 x 64 ÷ 2 μ
Example : TA = 30, μ = 1 → NTA_new = NTA_old + (30 - 31) x 16 x 64 / 21 = NTA_old - 1 x 512 Tc
Distance variation equals -1 x 512 x 0.076 m = - 39.06 m
Maximum distance variation = -31 x 512 x 0.076 m = - 1.21 km or +32 x 512 x 0.076 m = + 1.25 km (0.77 mi)