284 lines
12 KiB
C
284 lines
12 KiB
C
/*
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* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The OpenAirInterface Software Alliance licenses this file to You under
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* the OAI Public License, Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.openairinterface.org/?page_id=698
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*-------------------------------------------------------------------------------
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* For more information about the OpenAirInterface (OAI) Software Alliance:
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* contact@openairinterface.org
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*/
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/* \file config_ue.c
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* \brief common utility functions for NR (gNB and UE)
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* \author R. Knopp,
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* \date 2019
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* \version 0.1
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* \company Eurecom
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* \email: knopp@eurecom.fr
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* \note
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* \warning
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*/
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#include <stdint.h>
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#include "assertions.h"
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#include "nr_common.h"
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// Table 5.2-1 NR operating bands in FR1 & FR2 (3GPP TS 38.101)
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// Table 5.4.2.3-1 Applicable NR-ARFCN per operating band in FR1 & FR2 (3GPP TS 38.101)
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// Notes:
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// - N_OFFs for bands from 80 to 89 and band 95 is referred to UL
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// - Frequencies are expressed in KHz
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// - col: NR_band ul_min ul_max dl_min dl_max step N_OFFs_DL deltaf_raster
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nr_bandentry_t nr_bandtable[] = {
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{1, 1920000, 1980000, 2110000, 2170000, 20, 422000, 100},
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{2, 1850000, 1910000, 1930000, 1990000, 20, 386000, 100},
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{3, 1710000, 1785000, 1805000, 1880000, 20, 361000, 100},
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{5, 824000, 849000, 869000, 894000, 20, 173800, 100},
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{7, 2500000, 2570000, 2620000, 2690000, 20, 524000, 100},
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{8, 880000, 915000, 925000, 960000, 20, 185000, 100},
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{12, 698000, 716000, 729000, 746000, 20, 145800, 100},
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{14, 788000, 798000, 758000, 768000, 20, 151600, 100},
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{18, 815000, 830000, 860000, 875000, 20, 172000, 100},
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{20, 832000, 862000, 791000, 821000, 20, 158200, 100},
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{25, 1850000, 1915000, 1930000, 1995000, 20, 386000, 100},
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{26, 814000, 849000, 859000, 894000, 20, 171800, 100},
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{28, 703000, 758000, 758000, 813000, 20, 151600, 100},
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{29, 000, 000, 717000, 728000, 20, 143400, 100},
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{30, 2305000, 2315000, 2350000, 2360000, 20, 470000, 100},
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{34, 2010000, 2025000, 2010000, 2025000, 20, 402000, 100},
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{38, 2570000, 2620000, 2570000, 2630000, 20, 514000, 100},
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{39, 1880000, 1920000, 1880000, 1920000, 20, 376000, 100},
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{40, 2300000, 2400000, 2300000, 2400000, 20, 460000, 100},
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{41, 2496000, 2690000, 2496000, 2690000, 3, 499200, 15},
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{41, 2496000, 2690000, 2496000, 2690000, 6, 499200, 30},
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{47, 5855000, 5925000, 5855000, 5925000, 1, 790334, 15},
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//{48, 3550000, 3700000, 3550000, 3700000, 1, 636667, 15},
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//{48, 3550000, 3700000, 3550000, 3700000, 2, 636668, 30},
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{50, 1432000, 1517000, 1432000, 1517000, 20, 286400, 100},
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{51, 1427000, 1432000, 1427000, 1432000, 20, 285400, 100},
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{53, 2483500, 2495000, 2483500, 2495000, 20, 496700, 100},
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{65, 1920000, 2010000, 2110000, 2200000, 20, 422000, 100},
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{66, 1710000, 1780000, 2110000, 2200000, 20, 422000, 100},
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{70, 1695000, 1710000, 1995000, 2020000, 20, 399000, 100},
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{71, 663000, 698000, 617000, 652000, 20, 123400, 100},
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{74, 1427000, 1470000, 1475000, 1518000, 20, 295000, 100},
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{75, 000, 000, 1432000, 1517000, 20, 286400, 100},
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{76, 000, 000, 1427000, 1432000, 20, 285400, 100},
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{77, 3300000, 4200000, 3300000, 4200000, 1, 620000, 15},
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{77, 3300000, 4200000, 3300000, 4200000, 2, 620000, 30},
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{78, 3300000, 3800000, 3300000, 3800000, 1, 620000, 15},
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{78, 3300000, 3800000, 3300000, 3800000, 2, 620000, 30},
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{79, 4400010, 5000000, 4400010, 5000000, 1, 693334, 15},
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{79, 4400010, 5000000, 4400010, 5000000, 2, 693334, 30},
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{80, 1710000, 1785000, 000, 000, 20, 342000, 100},
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{81, 880000, 915000, 000, 000, 20, 176000, 100},
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{82, 832000, 862000, 000, 000, 20, 166400, 100},
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{83, 703000, 748000, 000, 000, 20, 140600, 100},
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{84, 1920000, 1980000, 000, 000, 20, 384000, 100},
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{86, 1710000, 1785000, 000, 000, 20, 342000, 100},
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{89, 824000, 849000, 000, 000, 20, 342000, 100},
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{90, 2496000, 2690000, 2496000, 2690000, 3, 499200, 15},
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{90, 2496000, 2690000, 2496000, 2690000, 6, 499200, 30},
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{90, 2496000, 2690000, 2496000, 2690000, 20, 499200, 100},
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{91, 832000, 862000, 1427000, 1432000, 20, 285400, 100},
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{92, 832000, 862000, 1432000, 1517000, 20, 286400, 100},
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{93, 880000, 915000, 1427000, 1432000, 20, 285400, 100},
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{94, 880000, 915000, 1432000, 1517000, 20, 286400, 100},
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{95, 2010000, 2025000, 000, 000, 20, 402000, 100},
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{257,26500020,29500000,26500020,29500000, 1,2054166, 60},
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{257,26500080,29500000,26500080,29500000, 2,2054167, 120},
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{258,24250080,27500000,24250080,27500000, 1,2016667, 60},
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{258,24250080,27500000,24250080,27500000, 2,2016667, 120},
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{260,37000020,40000000,37000020,40000000, 1,2229166, 60},
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{260,37000080,40000000,37000080,40000000, 2,2229167, 120},
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{261,27500040,28350000,27500040,28350000, 1,2070833, 60},
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{261,27500040,28350000,27500040,28350000, 2,2070833, 120}
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};
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uint16_t get_band(uint64_t downlink_frequency, int32_t delta_duplex)
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{
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const uint64_t dl_freq_khz = downlink_frequency / 1000;
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const int32_t delta_duplex_khz = delta_duplex / 1000;
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uint64_t center_freq_diff_khz = 999999999999999999; // 2^64
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uint16_t current_band = 0;
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for (int ind = 0; ind < nr_bandtable_size; ind++) {
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if (dl_freq_khz < nr_bandtable[ind].dl_min || dl_freq_khz > nr_bandtable[ind].dl_max)
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continue;
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int32_t current_offset_khz = nr_bandtable[ind].ul_min - nr_bandtable[ind].dl_min;
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if (current_offset_khz != delta_duplex_khz)
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continue;
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uint64_t center_frequency_khz = (nr_bandtable[ind].dl_max + nr_bandtable[ind].dl_min) / 2;
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if (abs(dl_freq_khz - center_frequency_khz) < center_freq_diff_khz){
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current_band = nr_bandtable[ind].band;
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center_freq_diff_khz = abs(dl_freq_khz - center_frequency_khz);
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}
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}
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printf("DL frequency %"PRIu64": band %d, UL frequency %"PRIu64"\n",
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downlink_frequency, current_band, downlink_frequency+delta_duplex);
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AssertFatal(current_band != 0, "Can't find EUTRA band for frequency %"PRIu64" and duplex_spacing %u\n", downlink_frequency, delta_duplex);
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return current_band;
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}
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const size_t nr_bandtable_size = sizeof(nr_bandtable) / sizeof(nr_bandentry_t);
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int NRRIV2BW(int locationAndBandwidth,int N_RB) {
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int tmp = locationAndBandwidth/N_RB;
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int tmp2 = locationAndBandwidth%N_RB;
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if (tmp <= ((N_RB>>1)+1) && (tmp+tmp2)<N_RB) return(tmp+1);
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else return(N_RB+1-tmp);
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}
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int NRRIV2PRBOFFSET(int locationAndBandwidth,int N_RB) {
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int tmp = locationAndBandwidth/N_RB;
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int tmp2 = locationAndBandwidth%N_RB;
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if (tmp <= ((N_RB>>1)+1) && (tmp+tmp2)<N_RB) return(tmp2);
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else return(N_RB-1-tmp2);
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}
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/* TS 38.214 ch. 6.1.2.2.2 - Resource allocation type 1 for DL and UL */
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int PRBalloc_to_locationandbandwidth0(int NPRB,int RBstart,int BWPsize) {
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AssertFatal(NPRB>0 && (NPRB + RBstart <= BWPsize),"Illegal NPRB/RBstart Configuration (%d,%d) for BWPsize %d\n",NPRB,RBstart,BWPsize);
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if (NPRB <= 1+(BWPsize>>1)) return(BWPsize*(NPRB-1)+RBstart);
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else return(BWPsize*(BWPsize+1-NPRB) + (BWPsize-1-RBstart));
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}
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int PRBalloc_to_locationandbandwidth(int NPRB,int RBstart) {
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return(PRBalloc_to_locationandbandwidth0(NPRB,RBstart,275));
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}
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/// Target code rate tables indexed by Imcs
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/* TS 38.214 table 5.1.3.1-1 - MCS index table 1 for PDSCH */
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uint16_t nr_target_code_rate_table1[29] = {120, 157, 193, 251, 308, 379, 449, 526, 602, 679, 340, 378, 434, 490, 553, \
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616, 658, 438, 466, 517, 567, 616, 666, 719, 772, 822, 873, 910, 948};
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/* TS 38.214 table 5.1.3.1-2 - MCS index table 2 for PDSCH */
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// Imcs values 20 and 26 have been multiplied by 2 to avoid the floating point
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uint16_t nr_target_code_rate_table2[28] = {120, 193, 308, 449, 602, 378, 434, 490, 553, 616, 658, 466, 517, 567, \
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616, 666, 719, 772, 822, 873, 1365, 711, 754, 797, 841, 885, 1833, 948};
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/* TS 38.214 table 5.1.3.1-3 - MCS index table 3 for PDSCH */
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uint16_t nr_target_code_rate_table3[29] = {30, 40, 50, 64, 78, 99, 120, 157, 193, 251, 308, 379, 449, 526, 602, 340, \
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378, 434, 490, 553, 616, 438, 466, 517, 567, 616, 666, 719, 772};
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uint16_t nr_tbs_table[93] = {24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 120, 128, 136, 144, 152, 160, 168, 176, 184, 192, 208, 224, 240, 256, 272, 288, 304, 320, \
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336, 352, 368, 384, 408, 432, 456, 480, 504, 528, 552, 576, 608, 640, 672, 704, 736, 768, 808, 848, 888, 928, 984, 1032, 1064, 1128, 1160, 1192, 1224, 1256, \
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1288, 1320, 1352, 1416, 1480, 1544, 1608, 1672, 1736, 1800, 1864, 1928, 2024, 2088, 2152, 2216, 2280, 2408, 2472, 2536, 2600, 2664, 2728, 2792, 2856, 2976, \
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3104, 3240, 3368, 3496, 3624, 3752, 3824};
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uint8_t nr_get_Qm(uint8_t Imcs, uint8_t table_idx) {
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switch(table_idx) {
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case 1:
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return (((Imcs<10)||(Imcs==29))?2:((Imcs<17)||(Imcs==30))?4:((Imcs<29)||(Imcs==31))?6:-1);
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break;
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case 2:
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return (((Imcs<5)||(Imcs==28))?2:((Imcs<11)||(Imcs==29))?4:((Imcs<20)||(Imcs==30))?6:((Imcs<28)||(Imcs==31))?8:-1);
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break;
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case 3:
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return (((Imcs<15)||(Imcs==29))?2:((Imcs<21)||(Imcs==30))?4:((Imcs<29)||(Imcs==31))?6:-1);
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break;
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default:
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AssertFatal(0, "Invalid MCS table index %d (expected in range [1,3])\n", table_idx);
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return(0);
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break;
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}
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}
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uint32_t nr_get_code_rate(uint8_t Imcs, uint8_t table_idx) {
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switch(table_idx) {
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case 1:
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return (nr_target_code_rate_table1[Imcs]);
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break;
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case 2:
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return (nr_target_code_rate_table2[Imcs]);
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break;
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case 3:
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return (nr_target_code_rate_table3[Imcs]);
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break;
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default:
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AssertFatal(0, "Invalid MCS table index %d (expected in range [1,3])\n", table_idx);
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return(0);
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break;
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}
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}
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int get_dmrs_port(int nl, uint16_t dmrs_ports) {
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if (dmrs_ports == 0) return 0; // dci 1_0
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int p = -1;
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int found = -1;
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for (int i=0; i<12; i++) { // loop over dmrs ports
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if((dmrs_ports>>i)&0x01) { // check if current bit is 1
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found++;
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if (found == nl) { // found antenna port number corresponding to current layer
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p = i;
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break;
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}
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}
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}
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AssertFatal(p>-1,"No dmrs port corresponding to layer %d found\n",nl);
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return p;
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}
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int get_subband_size(int NPRB,int size) {
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// implements table 5.2.1.4-2 from 36.214
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//
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//Bandwidth part (PRBs) Subband size (PRBs)
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// < 24 N/A
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//24 – 72 4, 8
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//73 – 144 8, 16
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//145 – 275 16, 32
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if (NPRB<24) return(1);
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if (NPRB<72) return (size==0 ? 4 : 8);
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if (NPRB<144) return (size==0 ? 8 : 16);
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if (NPRB<275) return (size==0 ? 16 : 32);
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AssertFatal(1==0,"Shouldn't get here, NPRB %d\n",NPRB);
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}
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void SLIV2SL(int SLIV,int *S,int *L) {
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int SLIVdiv14 = SLIV/14;
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int SLIVmod14 = SLIV%14;
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// Either SLIV = 14*(L-1) + S, or SLIV = 14*(14-L+1) + (14-1-S). Condition is 0 <= L <= 14-S
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if ((SLIVdiv14 + 1) >= 0 && (SLIVdiv14 <= 13-SLIVmod14)) {
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*L=SLIVdiv14+1;
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*S=SLIVmod14;
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} else {
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*L=15-SLIVdiv14;
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*S=13-SLIVmod14;
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}
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}
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