我這邊最近有一個情況，一批站點切換成功率隨著RRC鏈接請求數(shù)量的增加嚴重惡化（這一批站點在同一區(qū)域），后來重新規(guī)劃邏輯根序列的起始索引號后，切換指標恢復(fù)正常。
邏輯根序列的起始索引號的配置是如何影響切換的呢？這里面涉及的技術(shù)原理有哪些呢？求詳細解讀！我自己找了一些資料，但沒整理清楚這兩者的直接聯(lián)系，望指導(dǎo)！謝謝了！

原來這一批站點 邏輯根序列的起始索引號 都是相等的，后來重新規(guī)劃成不一樣的了，問題就解決了

切換也是一種rach接入，rach過程中prach資源的分配是最為主要的過程，rootsequenceindex是通過循環(huán)移位從而生成zc接入序列的輸入?yún)��?shù)，鄰居的root sequence相同的話就增加了rach失敗的幾率。 Table 5.7.2-4: Root Zadoff-Chu sequence order for preamble formats 0 – 3. Logical root sequence number Physical root sequence number (in increasing order of the corresponding logical sequence number) 0–23 129, 710, 140, 699, 120, 719, 210, 629, 168, 671, 84, 755, 105, 734, 93, 746, 70, 769, 60, 779 2, 837, 1, 838 24–29 56, 783, 112, 727, 148, 691 30–35 80, 759, 42, 797, 40, 799 36–41 35, 804, 73, 766, 146, 693 42–51 31, 808, 28, 811, 30, 809, 27, 812, 29, 810 52–63 24, 815, 48, 791, 68, 771, 74, 765, 178, 661, 136, 703 64–75 86, 753, 78, 761, 43, 796, 39, 800, 20, 819, 21, 818 76–89 95, 744, 202, 637, 190, 649, 181, 658, 137, 702, 125, 714, 151, 688 90–115 217, 622, 128, 711, 142, 697, 122, 717, 203, 636, 118, 721, 110, 729, 89, 750, 103, 736, 61, 778, 55, 784, 15, 824, 14, 825 116–135 12, 827, 23, 816, 34, 805, 37, 802, 46, 793, 207, 632, 179, 660, 145, 694, 130, 709, 223, 616 136–167 228, 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, 830 168–203 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, 621 204–263 152, 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, 833 264–327 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, 689 328–383 225, 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, 835 384–455 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, 613 456–513 230, 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, 515 514–561 323, 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, 580 562–629 237, 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, 517 630–659 330, 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, 605 660–707 257, 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, 518 708–729 346, 493, 339, 500, 351, 488, 306, 533, 289, 550, 400, 439, 378, 461, 374, 465, 415, 424, 270, 569, 241, 598 730–751 231, 608, 260, 579, 268, 571, 276, 563, 409, 430, 398, 441, 290, 549, 304, 535, 308, 531, 358, 481, 316, 523 752–765 293, 546, 288, 551, 284, 555, 368, 471, 253, 586, 256, 583, 263, 576 766–777 242, 597, 274, 565, 402, 437, 383, 456, 357, 482, 329, 510 778–789 317, 522, 307, 532, 286, 553, 287, 552, 266, 573, 261, 578 790–795 236, 603, 303, 536, 356, 483 796–803 355, 484, 405, 434, 404, 435, 406, 433 804–809 235, 604, 267, 572, 302, 537 810–815 309, 530, 265, 574, 233, 606 816–819 367, 472, 296, 543 820–837 336, 503, 305, 534, 373, 466, 280, 559, 279, 560, 419, 420, 240, 599, 258, 581, 229, 610 dsfds1K:JFD(本文來自移動通信網(wǎng)gg1fic3.cn,版權(quán)所有

樓上 好完美的解答。

協(xié)議里 有對應(yīng)的表格，自己查一下就行1fads不2K:JFD()$本文來自移動通信網(wǎng)gg1fic3.cn,版權(quán)所有
v545%#(K:JFD()本文來自移動通信網(wǎng)gg1fic3.cn,版權(quán)所有