LTE FDD
For Waveform Playback (ARB) capability.
This topic describes the settings of the Preambles node.
Logical Root Sequence Index (Incremented)
Cyclic Shift Set (High-speed-flat)
GUI image of Preamble assignment buttons:
Adds a Preamble to the specified Preamble number. The command argument specifies the position to add a Preamble.
The button is shown in Vertical tab at the same layer of Preamble x.
|
SCPI Command |
[:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<carrier>:PRACh:PREamble:ADD <integer> |
|
SCPI Example |
:RAD:LTEF:WAV:CCAR:PRAC:PRE:ADD 7 |
|
Notes |
Set only (Momentary action) |
|
Preset |
– |
|
Min |
1 |
|
Initial S/W Revision |
A.14.00 |
Deletes the specified Preamble.
Button on GUI is indicated in Vertical tab, same layer of Preamble x.
|
SCPI Command |
[:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<carrier>:PRACh:PREamble:DELete <integer> |
|
SCPI Example |
:RAD:LTEF:WAV:CCAR:PRAC:PRE:DEL 2 |
|
Notes |
Set only (Momentary action) |
|
Preset |
– |
|
Min |
1 |
|
Initial S/W Revision |
A.14.00 |
This setting is available for SCPI only.
Gets the number of Preambles.
|
SCPI Command |
[:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<carrier>:PRACh:PREamble:COUNt? |
|
SCPI Example |
:RAD:LTEF:WAV:CCAR:PRAC:PRE:COUN? |
|
Notes |
SCPI only, Query only |
|
State Saved |
Yes |
|
Preset |
10 |
|
Min |
0 |
|
Initial S/W Revision |
A.14.00 |
Describes the settings of Preamble x, denoting x with preamble number started from 1.
Notes for SCPI:
SCPI mnemonic PREamble<n> denotes PREamble[1]|2|…|<n> where <n> is the configured sequence length.
Sets the status of the selected Preamble.
|
SCPI Command |
[:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<carrier>:PRACh:PREamble<n>[:STATe] OFF|ON|0|1 [:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<carrier>:PRACh:PREamble<n>[:STATe]? |
|
SCPI Example |
:RAD:LTEF:WAV:CCAR:PRAC:PRE ON :RAD:LTEF:WAV:CCAR:PRAC:PRE? |
|
State Saved |
Yes |
|
Preset |
ON |
|
Initial S/W Revision |
A.14.00 |
Enter a power level in dB for the selected Preamble (PRACH burst), relative to the carrier power.
|
SCPI Command |
[:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<carrier>:PRACh:PREamble<n>:POWer <rel_ampl> [:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<carrier>:PRACh:PREamble<n>:POWer? |
|
SCPI Example |
:RAD:LTEF:WAV:CCAR:PRAC:PRE:POW -12.1 :RAD:LTEF:WAV:CCAR:PRAC:PRE:POW? |
|
Notes |
Unit in GUI: dB |
|
State Saved |
Yes |
|
Preset |
0 dB |
|
Min |
-60 dB |
|
Max |
20 dB |
|
Resolution |
0.001 dB |
|
Initial S/W Revision |
A.14.00 |
Sets the number of resource blocks offset for the PRACH preamble.
When the UE Type is set to BL/CE, this value is limited on the narrowbands for each system bandwidth.
{Future} [eMTC] For eMTC PRACH CC, this parameter is initially set to 1 as an exception.
See 3GPP TS 36.211 and 36.331 for more information.
|
SCPI Command |
[:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<carrier>:PRACh:PREamble<n>:RB:OFFSet <integer> [:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<carrier>:PRACh:PREamble<n>:RB:OFFSet? |
|
SCPI Example |
:RAD:LTEF:WAV:CCAR:PRAC:PRE:RB:OFFS 10 :RAD:LTEF:WAV:CCAR:PRAC:PRE:RB:OFFS? |
|
State Saved |
Yes |
|
Preset |
0 |
|
Min |
0 |
|
Max |
44 |
|
Max (LP) |
Maximum number of RB in the System Bandwidth – 6 |
|
Initial S/W Revision |
A.14.00 |
Sets a value for the PRACH preamble format.
|
SCPI Command |
[:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<carrier>:PRACh:PREamble<n>:FORMat F0|F1|F2|F3 |
|
SCPI Example |
:RAD:LTEF:WAV:CCAR:PRAC:PRE:FORM F1 :RAD:LTEF:WAV:CCAR:PRAC:PRE:FORM? |
|
State Saved |
Yes |
|
Preset |
F0 |
|
Range |
0 | 1 | 2 | 3 |
|
Initial S/W Revision |
A.14.00 |
Sets a frame number for the selected PRACH burst.
|
SCPI Command |
[:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<carrier>:PRACh:PREamble<n>:FRAMe <integer> [:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<carrier>:PRACh:PREamble<n>:FRAMe? |
|
SCPI Example |
:RAD:LTEF:WAV:CCAR:PRAC:PRE:FRAM 5 :RAD:LTEF:WAV:CCAR:PRAC:PRE:FRAM? |
|
Notes |
Value ranges are determined by the Waveform Generation Length selected in the PRACH Carrier node. |
|
State Saved |
Yes |
|
Preset |
|
|
Initial S/W Revision |
A.14.00 |
Sets a subframe number for the selected PRACH burst.
|
SCPI Command |
[:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<carrier>:PRACh:PREamble<n>:SFRame <integer> [:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<carrier>:PRACh:PREamble<n>:SFRame? |
|
SCPI Example |
:RAD:LTEF:WAV:CCAR:PRAC:PRE:SFR 3 :RAD:LTEF:WAV:CCAR:PRAC:PRE:SFR? |
|
Notes |
Value ranges are determined by the Waveform Generation Length selected in the PRACH Carrier node. |
|
State Saved |
Yes |
|
Preset |
|
|
Initial S/W Revision |
A.14.00 |
Sets a value for the logical root sequence index.
The Logical Root Sequence Index is the value of RACH_ROOT_SEQUENCE which is the logical index for the Zadoff-Chu sequence used for PRACH preamble generation.
There is the relation between the Logical Root Sequence Index and the Physical Root Sequence Index given by Root Zadoff-Chu sequence order table and preamble format.
See the standard document (3GPP TS 36.211) for more information.
Note) In the case preambles corresponding to Preamble Index cannot be generated from a single root Zadoff-Chu sequence, Logical Root Sequence Index is incremented until corresponding Preamble sequences are found.
That incremented Logical Root Sequence Index is displayed on Logical Root Sequence Index (Incremented) parameter.
Physical Root Sequence Index, Cyclic Shift v and Incremented Logical Root Sequence Index are automatically changed on GUI based on Cyclic Shift Set, Ncs Configuration, Logical Root Sequence Index and Preamble Index.
This parameter is editable only when Configuration Mode is PRACH Configuration.
In the table below, the first Logical root sequence number in the range matches the first Physical root sequence number, the second matches the second, and so on. For example, logical root number 0 = physical root number 129, logical root number 1 = physical root number 710. (See 3GPP TS 36.211.)
|
Logical root sequence number |
Physical root sequence number µ (in increasing order of the corresponding logical sequence number) |
|---|---|
|
0 to 23 |
129, 710, 140, 699, 120, 719, 210, 629, 168, 671, 84, 755, 105, 734, 93, 746, 70, 769, 60, 779, 2, 837, 1, 838 |
|
24 to 29 |
56, 783, 112, 727, 148, 691 |
|
30 to 35 |
80, 759, 42, 797, 40, 799 |
|
36 to 41 |
35, 804, 73, 766, 146, 693 |
|
42 to 51 |
31, 808, 28, 811, 30, 809, 27, 812, 29, 810 |
|
52 to 63 |
24, 815, 48, 791, 68, 771, 74, 765, 178, 661, 136, 703 |
|
64 to 75 |
86, 753, 78, 761, 43, 796, 39, 800, 20, 819, 21, 818 |
|
76 to 89 |
95, 744, 202, 637, 190, 649, 181, 658, 137, 702, 125, 714, 151, 688 |
|
90 to 115 |
217, 622, 128, 711, 142, 697, 122, 717, 203, 636, 118, 721, 110, 729, 89, 750, 103, 736, 61, 778, 55, 784, 15, 824, 14, 825 |
|
116 to 135 |
12, 827, 23, 816, 34, 805, 37, 802, 46, 793, 207, 632, 179, 660, 145, 694, 130, 709, 223, 616 |
|
136 to 167 |
228, 611, 227, 612, 132, 707, 133, 706, 143, 696, 135, 704, 161, 678, 201, 638, 173, 666, 106, 733, 83, 756, 91, 748, 66, 773, 53, 786, 10, 829, 9, 830 |
|
168 to 203 |
7, 832, 8, 831, 16, 823, 47, 792, 64, 775, 57, 782, 104, 735, 101, 738, 108, 731, 208, 631, 184, 655, 197, 642, 191, 648, 121, 718, 141, 698, 149, 690, 216, 623, 218, 621 |
|
204 to 263 |
152, 687, 144, 695, 134, 705, 138, 701, 199, 640, 162, 677, 176, 663, 119, 720, 158, 681, 164, 675, 174, 665, 171, 668, 170, 669, 87, 752, 169, 670, 88, 751, 107, 732, 81, 758, 82, 757, 100, 739, 98, 741, 71, 768, 59, 780, 65, 774, 50, 789, 49, 790, 26, 813, 17, 822, 13, 826, 6, 833 |
|
264 to 327 |
5, 834, 33, 806, 51, 788, 75, 764, 99, 740, 96, 743, 97, 742, 166, 673, 172, 667, 175, 664, 187, 652, 163, 676, 185, 654, 200, 639, 114, 725, 189, 650, 115, 724, 194, 645, 195, 644, 192, 647, 182, 657, 157, 682, 156, 683, 211, 628, 154, 685, 123, 716, 139, 700, 212, 627, 153, 686, 213, 626, 215, 624, 150, 689 |
|
328 to 383 |
225, 614, 224, 615, 221, 618, 220, 619, 127, 712, 147, 692, 124, 715, 193, 646, 205, 634, 206, 633, 116, 723, 160, 679, 186, 653, 167, 672, 79, 760, 85, 754, 77, 762, 92, 747, 58, 781, 62, 777, 69, 770, 54, 785, 36, 803, 32, 807, 25, 814, 18, 821, 11, 828, 4, 835 |
|
384 to 455 |
3, 836, 19, 820, 22, 817, 41, 798, 38, 801, 44, 795, 52, 787, 45, 794, 63, 776, 67, 772, 72, 767, 76, 763, 94, 745, 102, 737, 90, 749, 109, 730, 165, 674, 111, 728, 209, 630, 204, 635, 117, 722, 188, 651, 159, 680, 198, 641, 113, 726, 183, 656, 180, 659, 177, 662, 196, 643, 155, 684, 214, 625, 126, 713, 131, 708, 219, 620, 222, 617, 226, 613 |
|
456 to 513 |
230, 609, 232, 607, 262, 577, 252, 587, 418, 421, 416, 423, 413, 426, 411, 428, 376, 463, 395, 444, 283, 556, 285, 554, 379, 460, 390, 449, 363, 476, 384, 455, 388, 451, 386, 453, 361, 478, 387, 452, 360, 479, 310, 529, 354, 485, 328, 511, 315, 524, 337, 502, 349, 490, 335, 504, 324, 515 |
|
514 to 561 |
323, 516, 320, 519, 334, 505, 359, 480, 295, 544, 385, 454, 292, 547, 291, 548, 381, 458, 399, 440, 380, 459, 397, 442, 369, 470, 377, 462, 410, 429, 407, 432, 281, 558, 414, 425, 247, 592, 277, 562, 271, 568, 272, 567, 264, 575, 259, 580 |
|
562 to 629 |
237, 602, 239, 600, 244, 595, 243, 596, 275, 564, 278, 561, 250, 589, 246, 593, 417, 422, 248, 591, 394, 445, 393, 446, 370, 469, 365, 474, 300, 539, 299, 540, 364, 475, 362, 477, 298, 541, 312, 527, 313, 526, 314, 525, 353, 486, 352, 487, 343, 496, 327, 512, 350, 489, 326, 513, 319, 520, 332, 507, 333, 506, 348, 491, 347, 492, 322, 517 |
|
630 to 659 |
330, 509, 338, 501, 341, 498, 340, 499, 342, 497, 301, 538, 366, 473, 401, 438, 371, 468, 408, 431, 375, 464, 249, 590, 269, 570, 238, 601, 234, 605 |
|
660 to 707 |
257, 582, 273, 566, 255, 584, 254, 585, 245, 594, 251, 588, 412, 427, 372, 467, 282, 557, 403, 436, 396, 443, 392, 447, 391, 448, 382, 457, 389, 450, 294, 545, 297, 542, 311, 528, 344, 495, 345, 494, 318, 521, 331, 508, 325, 514, 321, 518 |
|
708 to 729 |
346, 493, 339, 500, 351, 488, 306, 533, 289, 550, 400, 439, 378, 461, 374, 465, 415, 424, 270, 569, 241, 598 |
|
730 to 751 |
231, 608, 260, 579, 268, 571, 276, 563, 409, 430, 398, 441, 290, 549, 304, 535, 308, 531, 358, 481, 316, 523 |
|
752 to 765 |
293, 546, 288, 551, 284, 555, 368, 471, 253, 586, 256, 583, 263, 576 |
|
766 to 777 |
242, 597, 274, 565, 402, 437, 383, 456, 357, 482, 329, 510 |
|
778 to 789 |
317, 522, 307, 532, 286, 553, 287, 552, 266, 573, 261, 578 |
|
790 to 795 |
236, 603, 303, 536, 356, 483 |
|
796 to 803 |
355, 484, 405, 434, 404, 435, 406, 433 |
|
804 to 809 |
235, 604, 267, 572, 302, 537 |
|
810 to 815 |
309, 530, 265, 574, 233, 606 |
|
816 to 819 |
367, 472, 296, 543 |
|
820 to 837 |
336, 503, 305, 534, 373, 466, 280, 559, 279, 560, 419, 420, 240, 599, 258, 581, 229, 610 |
|
SCPI Command |
[:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<carrier>:PRACh:PREamble<n>:LRSequence:INDex <integer> [:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<carrier>:PRACh:PREamble<n>:LRSequence:INDex? |
|
SCPI Example |
:RAD:LTEF:WAV:CCAR:PRAC:PRE:LRS:IND 1 :RAD:LTEF:WAV:CCAR:PRAC:PRE:LRS:IND? |
|
State Saved |
Yes |
|
Preset |
0 |
|
Min |
0 |
|
Max |
837 for Format 0 to 3 |
|
Initial S/W Revision |
A.14.00 |
Displays a value for the incremented logical root sequence index.
See the standard document (3GPP TS 36.211) for more information.
Note) In the case preambles corresponding to Preamble Index cannot be generated from a single root Zadoff-Chu sequence, Logical Root Sequence Index is incremented until corresponding Preamble sequences are found.
That incremented Logical Root Sequence Index is displayed on Logical Root Sequence Index (Incremented) parameter.
Physical Root Sequence Index, Cyclic Shift v and Incremented Logical Root Sequence Index are automatically changed on GUI based on Cyclic Shift Set, Ncs Configuration, Logical Root Sequence Index and Preamble Index.
|
SCPI Command |
[:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<carrier>:PRACh:PREamble<n>:LRSequence:INDex:INCRemented? |
|
SCPI Example |
:RAD:LTEF:WAV:CCAR:PRAC:PRE:LRS:IND:INCR? |
|
Notes |
Query only |
|
State Saved |
No |
|
Preset |
0 |
|
Min |
0 |
|
Max (LP) |
837 for Format 0 to 3 |
|
Initial S/W Revision |
A.14.00 |
Sets the cyclic shift restriction method. The selection of this value is coupled with the value of Ncs Configuration.
Ncs value is determined by Ncs configuration, Cyclic Shift Set and Preamble format.
See the standard document (3GPP TS 36.211) for more information.
Note) In the case preambles corresponding to Preamble Index cannot be generated from a single root Zadoff-Chu sequence, Logical Root Sequence Index is incremented until corresponding Preamble sequences are found.
That incremented Logical Root Sequence Index is displayed on Logical Root Sequence Index (Incremented) parameter.
Physical Root Sequence Index, Cyclic Shift v and Incremented Logical Root Sequence Index are automatically changed on GUI based on Cyclic Shift Set, Ncs Configuration, Logical Root Sequence Index and Preamble Index.
|
Ncs Configuration |
Unrestricted Set Value |
Restricted Set Value |
|---|---|---|
|
0 |
0 |
15 |
|
1 |
13 |
18 |
|
2 |
15 |
22 |
|
3 |
18 |
26 |
|
4 |
22 |
32 |
|
5 |
26 |
38 |
|
6 |
32 |
46 |
|
7 |
38 |
55 |
|
8 |
46 |
68 |
|
9 |
59 |
82 |
|
10 |
76 |
100 |
|
11 |
93 |
128 |
|
12 |
119 |
158 |
|
13 |
167 |
202 |
|
14 |
279 |
237 |
|
15 |
419 |
- |
|
SCPI Command |
[:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<carrier>:PRACh:PREamble<n>:CSSet RESTricted|UNRestricted [:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<carrier>:PRACh:PREamble<n>:CSSet? |
|
SCPI Example |
:RAD:LTEF:WAV:CCAR:PRAC:PRE:CSS REST :RAD:LTEF:WAV:CCAR:PRAC:PRE:CSS? |
|
State Saved |
Yes |
|
Preset |
UNRestricted (Normal Mode) |
|
Range |
Unrestricted (Normal Mode) | Restricted (High Speed Mode) Unrestricted (Normal Mode) (Fixed when PRACH Performance Test for eMTC (36.141) configuration is applied) |
|
Initial S/W Revision |
A.14.00 |
Sets a value for the Ncs configuration.
Ncs value is determined by Ncs configuration, Cyclic Shift Set and Preamble format.
See the standard document (3GPP TS 36.211) for more information.
Note) In the case preambles corresponding to Preamble Index cannot be generated from a single root Zadoff-Chu sequence, Logical Root Sequence Index is incremented until corresponding Preamble sequences are found.
That incremented Logical Root Sequence Index is displayed on Logical Root Sequence Index (Incremented) parameter.
Physical Root Sequence Index, Cyclic Shift v and Incremented Logical Root Sequence Index are automatically changed on GUI based on Cyclic Shift Set, Ncs Configuration, Logical Root Sequence Index and Preamble Index.
|
NCS configuration |
NCS value |
|
|---|---|---|
|
Unrestricted set |
Restricted set |
|
|
0 |
0 |
15 |
|
1 |
13 |
18 |
|
2 |
15 |
22 |
|
3 |
18 |
26 |
|
4 |
22 |
32 |
|
5 |
26 |
38 |
|
6 |
32 |
46 |
|
7 |
38 |
55 |
|
8 |
46 |
68 |
|
9 |
59 |
82 |
|
10 |
76 |
100 |
|
11 |
93 |
128 |
|
12 |
119 |
158 |
|
13 |
167 |
202 |
|
14 |
279 |
237 |
|
15 |
419 |
- |
|
SCPI Command |
[:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<carrier>:PRACh:PREamble<n>:NCS:CONFiguration <integer> [:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<carrier>:PRACh:PREamble<n>:NCS:CONFiguration? |
|
SCPI Example |
:RAD:LTEF:WAV:CCAR:PRAC:PRE:NCS:CONF 10 :RAD:LTEF:WAV:CCAR:PRAC:PRE:NCS:CONF? |
|
State Saved |
Yes |
|
Preset |
0 |
|
Min |
0 |
|
Max |
15 (Unrestricted) for Format 0 to 3 14 (Restricted) for Format 0 to 3 |
|
Initial S/W Revision |
A.14.00 |
Displays the Cyclic Shift value (Ncs value) which is determined by Ncs configuration, Cyclic Shift Set and Preamble format.
See the standard document (3GPP TS 36.211) for more information.
Note) In the case preambles corresponding to Preamble Index cannot be generated from a single root Zadoff-Chu sequence, Logical Root Sequence Index is incremented until corresponding Preamble sequences are found.
That incremented Logical Root Sequence Index is displayed on Logical Root Sequence Index (Incremented) parameter.
Physical Root Sequence Index, Cyclic Shift v and Incremented Logical Root Sequence Index are automatically changed on GUI based on Cyclic Shift Set, Ncs Configuration, Logical Root Sequence Index and Preamble Index.
|
SCPI Command |
[:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<carrier>:PRACh:PREamble<n>:NCS:VALue? |
|
SCPI Example |
:RAD:LTEF:WAV:CCAR:PRAC:PRE:NCS:VAL? |
|
Notes |
Query only |
|
State Saved |
No |
|
Preset |
|
|
Min |
|
|
Max |
|
|
Initial S/W Revision |
A.14.00 |
Sets a value for the Preamble Index.
The Preamble Index is one of the 64 possible preambles in the cell used for preamble generation.
See the standard document (3GPP TS 36.211) for more information.
Note) In the case preambles corresponding to Preamble Index cannot be generated from a single root Zadoff-Chu sequence, Logical Root Sequence Index is incremented until corresponding Preamble sequences are found.
That incremented Logical Root Sequence Index is displayed on Logical Root Sequence Index (Incremented) parameter.
Physical Root Sequence Index, Cyclic Shift v and Incremented Logical Root Sequence Index are automatically changed on GUI based on Cyclic Shift Set, Ncs Configuration, Logical Root Sequence Index and Preamble Index.
|
Test preambles for Normal Mode |
|||
|
Burst Format |
Ncs value |
Logical Root Sequence Index |
Cycle Shift v |
|
0 |
13 |
22 |
32 |
|
1 |
167 |
22 |
2 |
|
2 |
167 |
22 |
0 |
|
3 |
0 |
22 |
0 |
|
4 |
10 |
0 |
0 |
|
Test preambles for High Speed Mode |
|||
|
Burst Format |
Ncs value |
Logical Root Sequence Index |
Cycle Shift v |
|
0 |
15 |
384 |
0 |
|
1 |
202 |
384 |
0 |
|
2 |
202 |
384 |
0 |
|
3 |
237 |
384 |
0 |
Refer to Preamble Index in TS36.321 5.1, TS36.331 6.3.2, and TS36.212 5.3.3.1.3.
|
SCPI Command |
[:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<carrier>:PRACh:PREamble<n>:PINDex <integer> [:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<carrier>:PRACh:PREamble<n>:PINDex? |
|
SCPI Example |
:RAD:LTEF:WAV:CCAR:PRAC:PRE:PIND 10 :RAD:LTEF:WAV:CCAR:PRAC:PRE:PIND? |
|
State Saved |
Yes |
|
Preset |
0 |
|
Min |
0 |
|
Max |
63 |
|
Initial S/W Revision |
A.14.00 |
Displays the physical root sequence index.
There is the relation between the Logical Root Sequence Index and the Physical Root Sequence Index given by Root Zadoff-Chu sequence order table and preamble format.
See the standard document (3GPP TS 36.211) for more information.
Note) In the case preambles corresponding to Preamble Index cannot be generated from a single root Zadoff-Chu sequence, Logical Root Sequence Index is incremented until corresponding Preamble sequences are found.
That incremented Logical Root Sequence Index is displayed on Logical Root Sequence Index (Incremented) parameter.
Physical Root Sequence Index, Cyclic Shift v and Incremented Logical Root Sequence Index are automatically changed on GUI based on Cyclic Shift Set, Ncs Configuration, Logical Root Sequence Index and Preamble Index.
|
SCPI Command |
[:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<carrier>:PRACh:PREamble<n>:PRSequence:INDex? |
|
SCPI Example |
:RAD:LTEF:WAV:CCAR:PRAC:PRE:PRS:IND? |
|
Notes |
Query only |
|
State Saved |
|
|
Preset |
|
|
Min |
|
|
Max |
|
|
Initial S/W Revision |
A.14.00 |
Displays the cyclic shift v which is used for cyclic shift calculation of preamble generation.
See the standard document (3GPP TS 36.211) for more information.
Note) In the case preambles corresponding to Preamble Index cannot be generated from a single root Zadoff-Chu sequence, Logical Root Sequence Index is incremented until corresponding Preamble sequences are found.
That incremented Logical Root Sequence Index is displayed on Logical Root Sequence Index (Incremented) parameter.
Physical Root Sequence Index, Cyclic Shift v and Incremented Logical Root Sequence Index are automatically changed on GUI based on Cyclic Shift Set, Ncs Configuration, Logical Root Sequence Index and Preamble Index.
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Test preambles for Normal Mode |
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Burst Format |
Ncs |
Logical Root Sequence Index |
Cycle Shift v |
|
0 |
13 |
22 |
32 |
|
1 |
167 |
22 |
2 |
|
2 |
167 |
22 |
0 |
|
3 |
0 |
22 |
0 |
|
4 |
10 |
0 |
0 |
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Test preambles for High Speed Mode |
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Burst Format |
Ncs |
Logical Root Sequence Index |
Cycle Shift v |
|
0 |
15 |
384 |
0 |
|
1 |
202 |
384 |
0 |
|
2 |
202 |
384 |
0 |
|
3 |
237 |
384 |
0 |
Refer to Preamble Index-related information in TS36.212 5.3.3.1.3, TS36.321 5.1, and TS36.331 6.3.2.
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SCPI Command |
[:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<carrier>:PRACh:PREamble<n>:CSHift:V? |
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SCPI Example |
:RAD:LTEF:WAV:CCAR:PRAC:PRE:CSH:V? |
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Notes |
Query only |
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State Saved |
|
|
Preset |
|
|
Min |
|
|
Max |
|
|
Initial S/W Revision |
A.14.00 |
Sets the preamble time offset in microseconds (us) for the selected burst.
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SCPI Command |
[:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<carrier>:PRACh:PREamble<n>:TIMing:OFFSet <numeric> [:SOURce]:RADio:LTEFdd:WAVeform[:ARB]:CCARrier<carrier>:PRACh:PREamble<n>:TIMing:OFFSet? |
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SCPI Example |
:RAD:LTEF:WAV:CCAR:PRAC:PRE:TIM:OFFS 0.1us :RAD:LTEF:WAV:CCAR:PRAC:PRE:TIM:OFFS? |
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Notes |
Valid values are as follows: 0.0 us, 0.1 us, 0.2 us, 0.3 us, 0.4 us, 0.5 us, 0.6 us, 0.7 us, 0.8 us, 0.9 us |
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State Saved |
Yes |
|
Preset |
0.0 us |
|
Min |
0.0 us |
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Max |
0.9 us |
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Initial S/W Revision |
A.14.00 |
Preset values of parameters for all preambles.
|
SCPI Command |
N/A |
|
Notes |
Set only (Immediate Action) |
|
State Saved |
No |
|
Preset |
Refer to the element definition of the data part below. |
|
Range |
Refer to the element definition of the data part below. |
|
Initial S/W Revision |
A.14.00 |
Selects a setting name to preset.
|
SCPI Command |
– |
|
SCPI Example |
– |
|
Notes |
Set and Query GUI label: Column Value selection: Pulldown menu |
|
State Saved |
No |
|
Preset |
Enabled |
|
Range |
Refer to the element definition of the data part below. |
|
Initial S/W Revision |
A.14.00 |
Selects a value to preset for the selected setting.
|
SCPI Command |
– |
|
SCPI Example |
– |
|
Notes |
Set and Query GUI label: The name of selected setting in Column Value selection: Depends on the selected setting. Refer to the section of the selected setting |
|
State Saved |
No |
|
Preset |
Depends on the selected setting. Refer to the section of the selected setting |
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Range |
Refer to the element definition of the data part below. |
|
Initial S/W Revision |
A.14.00 |