一种校验码穿孔和解穿孔方法及装置制造方法及图纸
【技术实现步骤摘要】
一种校验码穿孔和解穿孔方法及装置
本专利技术涉及信道编码领域，尤其涉及一种校验码穿孔和解穿孔方法及装置。
技术介绍
目前，在无线通信网络中，频率资源和功率资源有限的情况下，需要保证在信道中传输的数据的可靠性，来提高用户平均吞吐量、边缘用户吞吐量和区域吞吐量等，从而提高无线通信网络的服务质量。低密度奇偶校验(英文全称：Low-densityparity-check，英文简称：LDPC)码现已广泛的应用于信道编码领域，来实现在信道中保证传输的数据的可靠性。但是，在信道环境多变的情况下，需要传输的码流的码长或码率能够自适应地根据信道环境做出相应调整。可以通过对LDPC码进行穿孔，减少码长，提高码率，从而设计码率可变的自适应LDPC码适应不同的信道环境。现有技术中，提供一种随机穿孔方案，LDPC码包括信息比特和校验比特，在LDPC码的校验比特部分随机删除Np个校验比特，即可得到码率为R的LDPC码。但是，随机穿孔没有对LDPC码的校验比特的穿孔位置和顺序进行优化，穿孔后的LDPC码性能较低，而且译码时接收端需要已知删除的校验比特，每次传输都需要额外的开销资源将删除的校验比特发送给接收端。另一方案中，电气和电子工程师协会(英文全称：instituteofelectricalandelectronicsengineers，英文简称：IEEE)802.11ac标准规定从LDPC码的校验比特的最后校验比特位开始依次往前穿孔，所采用的穿孔方案是基于度分布进行的，优先穿掉度较小的校验节点，但是，该标准按度分布是不加筛选的对LDPC码进行穿孔，导致穿孔后的LDPC码性能也较低。...
【技术保护点】
一种校验码穿孔方法，其特征在于，包括：发送设备获取低密度奇偶校验LDPC码，所述LDPC码包括校验比特位的校验比特；所述发送设备获取穿孔校验比特个数；所述发送设备根据所述穿孔校验比特个数和置信度列表对所述LDPC码的校验比特进行穿孔，得到穿孔后的LDPC码，所述置信度列表包括X个校验比特位，每个校验比特位按照所述校验比特位的置信度特征从小到大排列，所述发送设备预先存储所述置信度列表。
【技术特征摘要】
1.一种校验码穿孔方法，其特征在于，包括：发送设备获取低密度奇偶校验LDPC码，所述LDPC码包括校验比特位的校验比特；所述发送设备获取穿孔校验比特个数；所述发送设备根据所述穿孔校验比特个数和置信度列表对所述LDPC码的校验比特进行穿孔，得到穿孔后的LDPC码，所述置信度列表包括X个校验比特位，每个校验比特位按照所述校验比特位的置信度特征从小到大排列，所述发送设备预先存储所述置信度列表。2.根据权利要求1所述的方法，其特征在于，所述发送设备根据所述穿孔校验比特个数和置信度列表对所述LDPC码的校验比特进行穿孔，得到穿孔后的LDPC码包括：所述发送设备根据穿孔校验比特个数，从所述置信度列表中第一个校验比特位开始选择需要穿孔的校验比特位，所述第一个校验比特位为所述置信度列表中置信度特征最小的校验比特位；所述发送设备将所述LDPC码中的校验比特位对应的校验比特进行穿孔，所述LDPC码中的校验比特位与所述需要穿孔的校验比特位相同。3.根据权利要求1或2所述的方法，其特征在于，X为所述发送设备对LDPC码的校验比特进行穿孔的穿孔校验比特个数的最大值；或，X等于M，M等于LDPC码的校验比特个数。4.一种校验码解穿孔方法，其特征在于，包括：接收设备获取穿孔后的低密度奇偶校验LDPC码，所述穿孔后的LDPC码包括穿孔前的LDPC码的码长、穿孔前的LDPC码的码率和对应的穿孔校验比特个数；所述接收设备根据所述穿孔前的LDPC码的码长、所述穿孔前的LDPC码的码率和对应的穿孔校验比特个数，从置信度列表中获取校验比特位，所述置信度列表包括X个校验比特位，每个校验比特位按照所述校验比特位的置信度特征从小到大排列；所述接收设备在所述穿孔后的LDPC码中的所述校验比特位插入0进行解穿孔，得到穿孔前的LDPC码。5.一种生成置信度列表方法，其特征在于，包括：置信度列表生成装置获取固定信源信息，所述固定信源信息包括N个比特，N等于低密度奇偶校验LDPC码的码长，所述LDPC码包括信息比特位的比特和校验比特位的比特；所述置信度列表生成装置对所述固定信源信息进行LDPC编码和调制，得到LDPC码；所述置信度列表生成装置通过对所述LDPC码的比特进行初始化，将所述LDPC码的比特设置为译码初始值；所述置信度列表生成装置对初始化的所述LDPC码进行迭代译码；当所述迭代译码的迭代次数大于等于n时，所述置信度列表生成装置按照迭代译码后的LDPC码中的校验比特位的置信度特征，从小到大排列所述校验比特位，生成置信度列表，所述置信度列表包括M个校验比特位。6.根据权利要求5所述的方法，其特征在于，所述置信度列表生成装置对所述LDPC码的比特进行初始化包括：当LDPC码中的比特等于1，设置所述比特为第一译码初始值；当LDPC码中的比特等于0，设置所述比特为第二译码初始值。7.根据权利要求6所述的方法，其特征在于，当电气和电子工程师协会IEEE802.11协议簇规定的LDPC码的码长为648，码率为1/2时，所述置信度列表包括：540,541,542,543,544,545,546,547,548,549,550,551,552,553,554,555,556,557,558,559,560,561,562,563,564,565,566,378,379,380,381,382,383,384,385,386,387,388,389,390,391,392,393,394,395,396,397,398,399,400,401,402,403,404,567,568,569,570,571,572,573,574,575,576,577,578,579,580,581,582,583,584,585,586,587,588,589,590,591,592,593,594,595,596,597,598,599,600,601,602,603,604,605,606,607,608,609,610,611,612,613,614,615,616,617,618,619,620,486,487,488,489,490,491,492,493,494,495,496,497,498,499,500,501,502,503,504,505,506,507,508,509,510,511,512,459,460,461,462,463,464,465,466,467,468,469,470,471,472,473,474,475,476,477,478,479,480,481,482,483,484,485,351,352,353,354,355,356,357,358,359,360,361,362,363,364,365,366,367,368,369,370,371,372,373,374,375,376,377,621,622,623,624,625,626,627,628,629,630,631,632,633,634,635,636,637,638,639,640,641,642,643,644,645,646,647,513,514,515,516,517,518,519,520,521,522,523,524,525,526,527,528,529,530,531,532,533,534,535,536,537,538,539,405,406,407,408,409,410,411,412,413,414,415,416,417,418,419,420,421,422,423,424,425,426,427,428,429,430,431,432,433,434,435,436,437,438,439,440,441,442,443,444,445,446,447,448,449,450,451,452,453,454,455,456,457,458,324,325,326,327,328,329,330,331,332,333,334,335,336,337,338,339,340,341,342,343,344,345,346,347,348,349,350；当IEEE802.11协议簇规定的LDPC码的码长为648，码率为2/3时，所述置信度列表包括：540,541,542,543,544,545,546,547,548,549,550,551,552,553,554,555,556,557,558,559,560,561,562,563,564,565,566,567,568,569,570,571,572,573,574,575,576,577,578,579,580,581,582,583,584,585,586,587,588,589,590,591,592,593,459,460,461,462,463,464,465,466,467,468,469,470,471,472,473,474,475,476,477,478,479,480,481,482,483,484,485,486,487,488,489,490,491,492,493,494,495,496,497,498,499,500,501,502,503,504,505,506,507,508,509,510,511,512,513,514,515,516,517,518,519,520,521,522,523,524,525,526,527,528,529,530,531,532,533,534,535,536,537,538,539,594,595,596,597,598,599,600,601,602,603,604,605,606,607,608,609,610,611,612,613,614,615,616,617,618,619,620,621,622,623,624,625,626,627,628,629,630,631,632,633,634,635,636,637,638,639,640,641,642,643,644,645,646,647,432,433,434,435,436,437,438,439,440,441,442,443,444,445,446,447,448,449,450,451,452,453,454,455,456,457,458；当IEEE802.11协议簇规定的LDPC码的码长为648，码率为3/4时，所述置信度列表包括：513,514,515,516,517,518,519,520,521,522,523,524,525,526,527,528,529,530,531,532,533,534,535,536,537,538,539,540,541,542,543,544,545,546,547,548,549,550,551,552,553,554,555,556,557,558,559,560,561,562,563,564,565,566,567,568,569,570,571,572,573,574,575,576,577,578,579,580,581,582,583,584,585,586,587,588,589,590,591,592,593,621,622,623,624,625,626,627,628,629,630,631,632,633,634,635,636,637,638,639,640,641,642,643,644,645,646,647,594,595,596,597,598,599,600,601,602,603,604,605,606,607,608,609,610,611,612,613,614,615,616,617,618,619,620,486,487,488,489,490,491,492,493,494,495,496,497,498,499,500,501,502,503,504,505,506,507,508,509,510,511,512；当IEEE802.11协议簇规定的LDPC码的码长为648，码率为5/6时，所述置信度列表包括：567,568,569,570,571,572,573,574,575,576,577,578,579,580,581,582,583,584,585,586,587,588,589,590,591,592,593,594,595,596,597,598,599,600,601,602,603,604,605,606,607,608,609,610,611,612,613,614,615,616,617,618,619,620,621,622,623,624,625,626,627,628,629,630,631,632,633,634,635,636,637,638,639,640,641,642,643,644,645,646,647,540,541,542,543,544,545,546,547,548,549,550,551,552,553,554,555,556,557,558,559,560,561,562,563,564,565,566；当IEEE802.11协议簇规定的LDPC码的码长为1296，码率为1/2时，所述置信度列表包括：1026,1027,1028,1029,1030,1031,1032,1033,1034,1035,1036,1037,1038,1039,1040,1041,1042,1043,1044,1045,1046,1047,1048,1049,1050,1051,1052,1053,1054,1055,1056,1057,1058,1059,1060,1061,1062,1063,1064,1065,1066,1067,1068,1069,1070,1071,1072,1073,1074,1075,1076,1077,1078,1079,756,757,758,759,760,761,762,763,764,765,766,767,768,769,770,771,772,773,774,775,776,777,778,779,780,781,782,783,784,785,786,787,788,789,790,791,792,793,794,795,796,797,798,799,800,801,802,803,804,805,806,807,808,809,1080,1081,1082,1083,1084,1085,1086,1087,1088,1089,1090,1091,1092,1093,1094,1095,1096,1097,1098,1099,1100,1101,1102,1103,1104,1105,1106,1107,1108,1109,1110,1111,1112,1113,1114,1115,1116,1117,1118,1119,1120,1121,1122,1123,1124,1125,1126,1127,1128,1129,1130,1131,1132,1133,702,703,704,705,706,707,708,709,710,711,712,713,714,715,716,717,718,719,720,721,722,723,724,725,726,727,728,729,730,731,732,733,734,735,736,737,738,739,740,741,742,743,744,745,746,747,748,749,750,751,752,753,754,755,972,973,974,975,976,977,978,979,980,981,982,983,984,985,986,987,988,989,990,991,992,993,994,995,996,997,998,999,1000,1001,1002,1003,1004,1005,1006,1007,1008,1009,1010,1011,1012,1013,1014,1015,1016,1017,1018,1019,1020,1021,1022,1023,1024,1025,1188,1189,1190,1191,1192,1193,1194,1195,1196,1197,1198,1199,1200,1201,1202,1203,1204,1205,1206,1207,1208,1209,1210,1211,1212,1213,1214,1215,1216,1217,1218,1219,1220,1221,1222,1223,1224,1225,1226,1227,1228,1229,1230,1231,1232,1233,1234,1235,1236,1237,1238,1239,1240,1241,810,811,812,813,814,815,816,817,818,819,820,821,822,823,824,825,826,827,828,829,830,831,832,833,834,835,836,837,838,839,840,841,842,843,844,845,846,847,848,849,850,851,852,853,854,855,856,857,858,859,860,861,862,863,1242,1243,1244,1245,1246,1247,1248,1249,1250,1251,1252,1253,1254,1255,1256,1257,1258,1259,1260,1261,1262,1263,1264,1265,1266,1267,1268,1269,1270,1271,1272,1273,1274,1275,1276,1277,1278,1279,1280,1281,1282,1283,1284,1285,1286,1287,1288,1289,1290,1291,1292,1293,1294,1295,918,919,920,921,922,923,924,925,926,927,928,929,930,931,932,933,934,935,936,937,938,939,940,941,942,943,944,945,946,947,948,949,950,951,952,953,954,955,956,957,958,959,960,961,962,963,964,965,966,967,968,969,970,971,1134,1135,1136,1137,1138,1139,1140,1141,1142,1143,1144,1145,1146,1147,1148,1149,1150,1151,1152,1153,1154,1155,1156,1157,1158,1159,1160,1161,1162,1163,1164,1165,1166,1167,1168,1169,1170,1171,1172,1173,1174,1175,1176,1177,1178,1179,1180,1181,1182,1183,1184,1185,1186,1187,864,865,866,867,868,869,870,871,872,873,874,875,876,877,878,879,880,881,882,883,884,885,886,887,888,889,890,891,892,893,894,895,896,897,898,899,900,901,902,903,904,905,906,907,908,909,910,911,912,913,914,915,916,917,648,649,650,651,652,653,654,655,656,657,658,659,660,661,662,663,664,665,666,667,668,669,670,671,672,673,674,675,676,677,678,679,680,681,682,683,684,685,686,687,688,689,690,691,692,693,694,695,696,697,698,699,700,701；当IEEE802.11协议簇规定的LDPC码的码长为1296，码率为2/3时，所述置信度列表包括：1026,1027,1028,1029,1030,1031,1032,1033,1034,1035,1036,1037,1038,1039,1040,1041,1042,1043,1044,1045,1046,1047,1048,1049,1050,1051,1052,1053,1054,1055,1056,1057,1058,1059,1060,1061,1062,1063,1064,1065,1066,1067,1068,1069,1070,1071,1072,1073,1074,1075,1076,1077,1078,1079,1080,1081,1082,1083,1084,1085,1086,1087,1088,1089,1090,1091,1092,1093,1094,1095,1096,1097,1098,1099,1100,1101,1102,1103,1104,1105,1106,1107,1108,1109,1110,1111,1112,1113,1114,1115,1116,1117,1118,1119,1120,1121,1122,1123,1124,1125,1126,1127,1128,1129,1130,1131,1132,1133,918,919,920,921,922,923,924,925,926,927,928,929,930,931,932,933,934,935,936,937,938,939,940,941,942,943,944,945,946,947,948,949,950,951,952,953,954,955,956,957,958,959,960,961,962,963,964,965,966,967,968,969,970,971,972,973,974,975,976,977,978,979,980,981,982,983,984,985,986,987,988,989,990,991,992,993,994,995,996,997,998,999,1000,1001,1002,1003,1004,1005,1006,1007,1008,1009,1010,1011,1012,1013,1014,1015,1016,1017,1018,1019,1020,1021,1022,1023,1024,1025,1134,1135,1136,1137,1138,1139,1140,1141,1142,1143,1144,1145,1146,1147,1148,1149,1150,1151,1152,1153,1154,1155,1156,1157,1158,1159,1160,1161,1162,1163,1164,1165,1166,1167,1168,1169,1170,1171,1172,1173,1174,1175,1176,1177,1178,1179,1180,1181,1182,1183,1184,1185,1186,1187,1188,1189,1190,1191,1192,1193,1194,1195,1196,1197,1198,1199,1200,1201,1202,1203,1204,1205,1206,1207,1208,1209,1210,1211,1212,1213,1214,1215,1216,1217,1218,1219,1220,1221,1222,1223,1224,1225,1226,1227,1228,1229,1230,1231,1232,1233,1234,1235,1236,1237,1238,1239,1240,1241,1242,1243,1244,1245,1246,1247,1248,1249,1250,1251,1252,1253,1254,1255,1256,1257,1258,1259,1260,1261,1262,1263,1264,1265,1266,1267,1268,1269,1270,1271,1272,1273,1274,1275,1276,1277,1278,1279,1280,1281,1282,1283,1284,1285,1286,1287,1288,1289,1290,1291,1292,1293,1294,1295,864,865,866,867,868,869,870,871,872,873,874,875,876,877,878,879,880,881,882,883,884,885,886,887,888,889,890,891,892,893,894,895,896,897,898,899,900,901,902,903,904,905,906,907,908,909,910,911,912,913,914,915,916,917；当IEEE802.11协议簇规定的LDPC码的码长为1296，码率为3/4时，所述置信度列表包括：1134,1135,1136,1137,1138,1139,1140,1141,1142,1143,1144,1145,1146,1147,1148,1149,1150,1151,1152,1153,1154,1155,1156,1157,1158,1159,1160,1161,1162,1163,1164,1165,1166,1167,1168,1169,1170,1171,1172,1173,1174,1175,1176,1177,1178,1179,1180,1181,1182,1183,1184,1185,1186,1187,1188,1189,1190,1191,1192,1193,1194,1195,1196,1197,1198,1199,1200,1201,1202,1203,1204,1205,1206,1207,1208,1209,1210,1211,1212,1213,1214,1215,1216,1217,1218,1219,1220,1221,1222,1223,1224,1225,1226,1227,1228,1229,1230,1231,1232,1233,1234,1235,1236,1237,1238,1239,1240,1241,1026,1027,1028,1029,1030,1031,1032,1033,1034,1035,1036,1037,1038,1039,1040,1041,1042,1043,1044,1045,1046,1047,1048,1049,1050,1051,1052,1053,1054,1055,1056,1057,1058,1059,1060,1061,1062,1063,1064,1065,1066,1067,1068,1069,1070,1071,1072,1073,1074,1075,1076,1077,1078,1079,1080,1081,1082,1083,1084,1085,1086,1087,1088,1089,1090,1091,1092,1093,1094,1095,1096,1097,1098,1099,1100,1101,1102,1103,1104,1105,1106,1107,1108,1109,1110,1111,1112,1113,1114,1115,1116,1117,1118,1119,1120,1121,1122,1123,1124,1125,1126,1127,1128,1129,1130,1131,1132,1133,1242,1243,1244,1245,1246,1247,1248,1249,1250,1251,1252,1253,1254,1255,1256,1257,1258,1259,1260,1261,1262,1263,1264,1265,1266,1267,1268,1269,1270,1271,1272,1273,1274,1275,1276,1277,1278,1279,1280,1281,1282,1283,1284,1285,1286,1287,1288,1289,1290,1291,1292,1293,1294,1295,972,973,974,975,976,977,978,979,980,981,982,983,984,985,986,987,988,989,990,991,992,993,994,995,996,997,998,999,1000,1001,1002,1003,1004,1005,1006,1007,1008,1009,1010,1011,1012,1013,1014,1015,1016,1017,1018,1019,1020,1021,1022,1023,1024,1025；当IEEE802.11协议簇规定的LDPC码的码长为1296，码率为5/6时，所述置信度列表包括：1188,1189,1190,1191,1192,1193,1194,1195,1196,1197,1198,1199,1200,1201,1202,1203,1204,1205,1206,1207,1208,1209,1210,1211,1212,1213,1214,1215,1216,1217,1218,1219,1220,1221,1222,1223,1224,1225,1226,1227,1228,1229,1230,1231,1232,1233,1234,1235,1236,1237,1238,1239,1240,1241,1242,1243,1244,1245,1246,1247,1248,1249,1250,1251,1252,1253,1254,1255,1256,1257,1258,1259,1260,1261,1262,1263,1264,1265,1266,1267,1268,1269,1270,1271,1272,1273,1274,1275,1276,1277,1278,1279,1280,1281,1282,1283,1284,1285,1286,1287,1288,1289,1290,1291,1292,1293,1294,1295,1134,1135,1136,1137,1138,1139,1140,1141,1142,1143,1144,1145,1146,1147,1148,1149,1150,1151,1152,1153,1154,1155,1156,1157,1158,1159,1160,1161,1162,1163,1164,1165,1166,1167,1168,1169,1170,1171,1172,1173,1174,1175,1176,1177,1178,1179,1180,1181,1182,1183,1184,1185,1186,1187,1080,1081,1082,1083,1084,1085,1086,1087,1088,1089,1090,1091,1092,1093,1094,1095,1096,1097,1098,1099,1100,1101,1102,1103,1104,1105,1106,1107,1108,1109,1110,1111,1112,1113,1114,1115,1116,1117,1118,1119,1120,1121,1122,1123,1124,1125,1126,1127,1128,1129,1130,1131,1132,1133；当IEEE802.11协议簇规定的LDPC码的码长为1944，码率为1/2时，所述置信度列表包括：1863,1864,1865,1866,1867,1868,1869,1870,1871,1872,1873,1874,1875,1876,1877,1878,1879,1880,1881,1882,1883,1884,1885,1886,1887,1888,1889,1890,1891,1892,1893,1894,1895,1896,1897,1898,1899,1900,1901,1902,1903,1904,1905,1906,1907,1908,1909,1910,1911,1912,1913,1914,1915,1916,1917,1918,1919,1920,1921,...
【专利技术属性】
技术研发人员：陈庆春，王慧，张勇，林伟，朱俊，
申请(专利权)人：华为技术有限公司，
类型：发明
国别省市：广东,44
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