Communication method and communication apparatus

Abstract

The present application provides a communication method and a communication apparatus. The method can be applied to a WLAN system supporting 802.11 series protocols such as IEEE 802.11be or the next generation of 802.11be (WiFi 8), and can also be applied to a UWB-based wireless personal area network system and sensing system. In the method, a first resource unit is distributed in a bandwidth of 80 MHz, the first resource unit comprises 106 subcarriers or 52 subcarriers, the difference between the indexes of any two adjacent subcarriers in the first resource unit is an integer multiple of 8, and therefore, the distribution of the subcarriers in the first resource unit is more uniform, thereby reducing PAPR, and improving communication performance.

Description

A communication method and communication device

[0001] This application claims priority to Chinese Patent Application No. 202410522207.9, filed on April 26, 2024, entitled "A Method and Device for Communication", the entire contents of which are incorporated herein by reference.

[0002] This application claims priority to Chinese Patent Application No. 202411082173.2, filed on August 7, 2024, entitled "A Method and Device for Communication", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of communications, and more specifically, to a method and apparatus for communication. Background Technology

[0004] In wireless local area network (WLAN) communication, the entire spectrum bandwidth can be divided into multiple resource units (RUs). User frequency domain resources are allocated not on a channel-by-channel basis, but on a resource unit basis. Resource units can be further divided into continuous resource units and distributed resource units.

[0005] In this context, the transmit power of a device is limited by the bandwidth of its RUs (Radial Units). For consecutive RUs and distributed RUs containing the same number of subcarriers, consecutive RUs occupy less bandwidth, thus resulting in a lower maximum transmit power. In scenarios with limited power spectral density, both transmission rate and distance are significantly restricted. In contrast, distributed RUs improve transmit power by discretely distributing the subcarriers within each RU across the entire or larger bandwidth. For example, in low-power indoor (LPI) scenarios, using distributed RUs can increase the maximum allowable transmit power of the device.

[0006] The subcarriers contained in the current distributed RU are distributed over the entire or larger bandwidth. However, the larger the signal bandwidth, the larger its PAPR is usually. When using these RUs for data transmission, the peak to average power ratio (PAPR) of the data is large, which causes nonlinear distortion of the signal and affects the communication performance. Summary of the Invention

[0007] This application provides a communication method and communication device that can reduce the PAPR of a distributed RU and improve communication performance.

[0008] Firstly, a method of communication is provided. This method can be executed by a first station or by components of the first station (e.g., a chip, circuit, or chip system). For ease of understanding, the following description assumes execution by the first station.

[0009] The method includes: determining first information for indicating a first resource unit distributed in an 80MHz bandwidth, the first resource unit comprising 106 subcarriers or 52 subcarriers, wherein the difference between the indices of any two adjacent subcarriers in the first resource unit is an integer multiple of 8; and transmitting the first information.

[0010] Based on the above scheme, the first station can indicate the first resource unit to the second station. The index difference between any two adjacent subcarriers in the first resource unit is an integer multiple of 8, which can be equivalent to upsampling the continuous RU in the frequency domain. Since upsampling in the frequency domain does not change the PAPR of the signal, the PAPR of the first resource unit can be equivalent to the PAPR of the continuous RU. Compared with other distributed RUs, using the first resource unit can reduce the PAPR and improve communication performance.

[0011] For example, the first resource unit indicated by the first information is a resource unit allocated by the first site to the second site.

[0012] Optionally, the first resource unit includes 52 subcarriers, and the difference between the indices of adjacent subcarriers in the first resource unit is not all an integer multiple of 16.

[0013] Based on the above technical solution, the problem of PPDU false detection can be avoided by the receiving end mistaking the transmission on the first resource unit as a legacy-short training field (L-STF) when performing delay correlation detection.

[0014] Secondly, a communication method is provided. This method can be executed by a second station or by components of the second station (such as a chip, circuit, or chip system). For ease of understanding, the following description uses execution by the second station as an example.

[0015] The method includes: receiving first information for indicating a first resource unit distributed in an 80MHz bandwidth, the first resource unit comprising 106 subcarriers or 52 subcarriers, wherein the difference between the indices of any two adjacent subcarriers in the first resource unit is an integer multiple of 8; and transmitting or receiving data according to the first resource unit.

[0016] Optionally, the first resource unit includes 52 subcarriers, and the difference between the indices of adjacent subcarriers in the first resource unit is not all an integer multiple of 16.

[0017] The beneficial effects of the second aspect can be referred to in the description of the first aspect above, and will not be elaborated here.

[0018] In conjunction with the first or second aspect, in certain implementations of the first or second aspect, the first resource unit comprises 52 subcarriers, the indices of which are one of the following: [-483:24:-315,-299:16:-27,21:16:293,309:24:477]; [-475:24:-307,-291:16:-19,29:16:301,317:24:485]; [-479:24:-311,-295:16:-23,25:16:297,313:24:48] 1];[-487:24:-319,-303:16:-31,17:16:289,305:24:473];[-481:24:-313,-297:16:-25,23:16:295,311:24:479];[-473:24:-305,-289:16:-17,31:16:303,319:24:487];[-477:24:-309,-293:16:-21,27:16:299,315:24:483];[-485:24:-317,- [301:16:-29,19:16:291,307:24:475];[-482:24:-314,-298:16:-26,22:16:294,310:24:478];[-474:24:-306,-290:16:-18,30:16:302,318:24:486];[-478:24:-310,-294:16:-22,26:16:298,314:24:482];[-486:24:-318,-302:16:-30,18:16:2 [90,306:24:474];[-480:24:-312,-296:16:-24,24:16:296,312:24:480];[-472:24:-304,-288:16:-16,32:16:304,320:24:488];[-476:24:-308,-292:16:-20,28:16:300,316:24:484];or, [-484:24:-316,-300:16:-28,20:16:292,308:24:476].

[0019] Wherein, [a:c:b] represents a set of subcarrier indices, the subcarriers included in the set starting from subcarrier index a and ending at subcarrier index b, with a step size of c.

[0020] In conjunction with the first or second aspect, in certain implementations of the first or second aspect, the first resource element comprises 52 subcarriers, and the index of the subcarriers included in the first resource element is one of the following:

[0021] [-475:72:-43,-459:72:-27,-443:72:-83,-427:72:-67,21:72:453,37:72:469,61:72:421,77:72:437];

[0022] [-467:72:-35,-451:72:-19,-435:72:-75,-419:72:-59,29:72:461,45:72:477,69:72:429,85:72:445];

[0023] [-471:72:-39,-455:72:-23,-439:72:-79,-423:72:-63,25:72:457,41:72:473,65:72:425,81:72:441];

[0024] [-479:72:-47,-463:72:-31,-447:72:-87,-431:72:-71,17:72:449,33:72:465,57:72:417,73:72:433];

[0025] [-473:72:-41,-457:72:-25,-441:72:-81,-425:72:-65,23:72:455,39:72:471,63:72:423,79:72:439];

[0026] [-465:72:-33,-449:72:-17,-433:72:-73,-417:72:-57,31:72:463,47:72:479,71:72:431,87:72:447];

[0027] [-469:72:-37,-453:72:-21,-437:72:-77,-421:72:-61,27:72:459,43:72:475,67:72:427,83:72:443];

[0028] [-477:72:-45,-461:72:-29,-445:72:-85,-429:72:-69,19:72:451,35:72:467,59:72:419,75:72:435];

[0029] [-474:72:-42,-458:72:-26,-442:72:-82,-426:72:-66,22:72:454,38:72:470,62:72:422,78:72:438];

[0030] [-466:72:-34,-450:72:-18,-434:72:-74,-418:72:-58,30:72:462,46:72:478,70:72:430,86:72:446];

[0031] [-470:72:-38,-454:72:-22,-438:72:-78,-422:72:-62,26:72:458,42:72:474,66:72:426,82:72:442];

[0032] [-478:72:-46,-462:72:-30,-446:72:-86,-430:72:-70,18:72:450,34:72:466,58:72:418,74:72:434];

[0033] [-472:72:-40,-456:72:-24,-440:72:-80,-424:72:-64,24:72:456,40:72:472,64:72:424,80:72:440];

[0034] [-464:72:-32,-448:72:-16,-432:72:-72,-416:72:-56,32:72:464,48:72:480,72:72:432,88:72:448];

[0035] [-468:72:-36,-452:72:-20,-436:72:-76,-420:72:-60,28:72:460,44:72:476,68:72:428,84:72:444]; or,

[0036] [-476:72:-44,-460:72:-28,-444:72:-84,-428:72:-68,20:72:452,36:72:468,60:72:420,76:72:436].

[0037] Thirdly, a communication method is provided. This method can be executed by a first station or by components of the first station (e.g., a chip, circuit, or chip system). For ease of understanding, the following description assumes execution by the first station.

[0038] The method includes: determining first information for indicating a first resource unit distributed in an 80MHz bandwidth, the first resource unit comprising 2R subcarriers, wherein the index of the first R subcarriers or the last R subcarriers of the first resource unit has the following relationship with the index of the subcarriers of a discrete resource unit comprising 242 subcarriers:

[0039] Send this first message.

[0040] Where the index is A i B i And indices N1 to N a+b+c+d All subcarriers belong to the discrete resource unit consisting of 242 subcarriers, i = 1, 2, ..., 26, k1, k2, a, b, c and d are all non-negative integers, and a + b + c + d = 8.

[0041] If R = 53, then the index is A. i and B i All subcarriers belong to the first resource unit, and their indices are N1 to N. a+b+c+d If there is one and only one subcarrier belonging to the first resource unit; or, if R = 26, then the index is A. i Or B i The subcarriers belong to the first resource unit and are indexed as N1 to N. a+b+c+d None of the subcarriers belong to the first resource unit.

[0042] For example, the first resource unit indicated by the first information is a resource unit allocated by the first site to the second site.

[0043] Based on the above scheme, it is advantageous to construct a first resource unit where the index difference between any two adjacent subcarriers is an integer multiple of 8. This can be equivalent to upsampling a continuous RU in the frequency domain. Since upsampling in the frequency domain does not change the PAPR of the signal, the PAPR of this first resource unit can be equivalent to the PAPR of a continuous RU. Compared with other distributed RUs, using the first resource unit can reduce PAPR and improve communication performance.

[0044] Alternatively, if R = 26, then at least one of b and c is odd.

[0045] Based on the above technical solution, if at least one of b and c is odd, it can be guaranteed that the difference between the indices of adjacent subcarriers in the first resource unit is not all multiples of 16, thus avoiding the receiver from mistaking the transmission on the first resource unit as an L-STF field when performing delay correlation detection, thereby causing PPDU false detection problems.

[0046] Fourthly, a communication method is provided. This method can be executed by a second station or by components of the second station (e.g., a chip, circuit, or chip system). For ease of understanding, the following description uses execution by the second station as an example.

[0047] The method includes: receiving first information, the first information being used to indicate a first resource unit, the first resource unit being distributed in an 80MHz bandwidth, the first resource unit comprising 2R subcarriers, the index of the first R subcarriers or the last R subcarriers comprising the first resource unit having the following relationship with the index of the subcarriers comprising a discrete resource unit comprising 242 subcarriers:

[0048] Data is sent or received according to the first resource unit.

[0049] Where the index is A i B i And indices N1 to N a+b+c+d All subcarriers belong to the discrete resource unit consisting of 242 subcarriers, i = 1, 2, ..., 26, k1, k2, a, b, c and d are all non-negative integers, and a + b + c + d = 8.

[0050] If R = 53, then the index is A. i and B i All subcarriers belong to the first resource unit, and their indices are N1 to N. a+b+c+d If there is one and only one subcarrier belonging to the first resource unit; or, if R = 26, then the index is A. i Or B i The subcarriers belong to the first resource unit and are indexed as N1 to N. a+b+c+d None of the subcarriers belong to the first resource unit.

[0051] Alternatively, if R = 26, then at least one of b and c is odd.

[0052] The beneficial effects of the fourth aspect can be referred to the description in the third aspect above, and will not be elaborated here.

[0053] In conjunction with the first to fourth aspects, in certain implementations of the first to fourth aspects, the first resource unit includes 106 subcarriers, and the index of the subcarriers included in the first resource unit is one of the following: [-467:8:-379,-363:8:-43,45:8:365,381:8:469]; [-471:8:-383,-367:8:-47,41:8:361,377:8:465]; [-465:8:-377,-361:8:-41,47:8:367,383:8:471]; [-469:8:-383,-363 ...64,-363:8:-465]; [-465:8:-377,-361:8:-41,47:8:367,383:8:471]; [-469:8:-383,-363:8:-464,-363:8:-465]; [-465:8:-377,-361:8:-465,-363:8:-465]; [-465:8:-377,-361:8:-465]; [-465:8:-377,-361:8:-465]; [-465:8:-377,-361:8:-465]; [81,-365:8:-45,43:8:363,379:8:467];[-466:8:-378,-362:8:-42,46:8:366,382:8:470];[-470:8:-382,-366:8:-46,42:8:362,378:8:466];[-464:8:-376,-360:8:-40,48:8:368,384:8:472];or, [-468:8:-380,-364:8:-44,44:8:364,380:8:468].

[0054] In conjunction with the first to fourth aspects, in some implementations of the first to fourth aspects, the first resource unit includes 106 subcarriers, and the index of the subcarriers included in the first resource unit is one of the following: [-459:8:-43,45:8:461]; [-463:8:-47,41:8:457]; [-457:8:-41,47:8:463]; [-461:8:-45,43:8:459]; [-458:8:-42,46:8:462]; [-462:8:-46,42:8:458]; [-456:8:-40,48:8:464]; or, [-460:8:-44,44:8:460].

[0055] In conjunction with aspects one through four, in some implementations of aspects one through four, the first resource element comprises 52 subcarriers, and the index of the subcarriers comprised in the first resource element is one of the following:

[0056] [-467:16:-387,-363:16:-155,-131:16:-51,45:16:125,149:16:357,381:16:461];

[0057] [-459:16:-379,-355:16:-147,-123:16:-43,53:16:133,157:16:365,389:16:469];

[0058] [-463:16:-383,-359:16:-151,-127:16:-47,49:16:129,153:16:361,385:16:465]；

[0059] [-471:16:-391,-367:16:-159,-135:16:-55,41:16:121,145:16:353,377:16:457]；

[0060] [-465:16:-385,-361:16:-153,-129:16:-49,47:16:127,151:16:359,383:16:463]；

[0061] [-457:16:-377,-353:16:-145,-121:16:-41,55:16:135,159:16:367,391:16:471]；

[0062] [-461:16:-381,-357:16:-149,-125:16:-45,51:16:131,155:16:363,387:16:467]；

[0063] [-469:16:-389,-365:16:-157,-133:16:-53,43:16:123,147:16:355,379:16:459]；

[0064] [-466:16:-386,-362:16:-154,-130:16:-50,46:16:126,150:16:358,382:16:462]；

[0065] [-458:16:-378,-354:16:-146,-122:16:-42,54:16:134,158:16:366,390:16:470]；

[0066] [-462:16:-382,-358:16:-150,-126:16:-46,50:16:130,154:16:362,386:16:466]；

[0067] [-470:16:-390,-366:16:-158,-134:16:-54,42:16:122,146:16:354,378:16:458]；

[0068] [-464:16:-384,-360:16:-152,-128:16:-48,48:16:128,152:16:360,384:16:464];

[0069] [-456:16:-376,-352:16:-144,-120:16:-40,56:16:136,160:16:368,392:16:472];

[0070] [-460:16:-380,-356:16:-148,-124:16:-44,52:16:132,156:16:364,388:16:468]; or,

[0071] [-468:16:-388,-364:16:-156,-132:16:-52,44:16:124,148:16:356,380:16:460].

[0072] In conjunction with the first to fourth aspects, in certain implementations of the first to fourth aspects, the first resource unit comprises 52 subcarriers, wherein the index of the subcarriers included in the first resource unit is one of the following: [-459:16:-267,-243:16:-51,45:16:237,261:16:453]; [-451:16:-259,-235:16:-43,53:16:245,269:16:461]; [-455:16:-263,-239:16:-47,49:16:241,265:16:45] 7];[-463:16:-271,-247:16:-55,41:16:233,257:16:449];[-457:16:-265,-241:16:-49,47:16:239,263:16:455];[-449:16:-257,-233:16:-41,55:16:247,271:16:463];[-453:16:-261,-237:16:-45,51:16:243,267:16:459];[-461:16:-269,- [245:16:-53,43:16:235,259:16:451];[-458:16:-266,-242:16:-50,46:16:238,262:16:454];[-450:16:-258,-234:16:-42,54:16:246,270:16:462];[-454:16:-262,-238:16:-46,50:16:242,266:16:458];[-462:16:-270,-246:16:-54,42:16:2 [34,258:16:450];[-456:16:-264,-240:16:-48,48:16:240,264:16:456];[-448:16:-256,-232:16:-40,56:16:248,272:16:464];[-452:16:-260,-236:16:-44,52:16:244,268:16:460];or, [-460:16:-268,-244:16:-52,44:16:236,260:16:452].

[0073] Fifthly, a method of communication is provided. This method can be executed by a first station or by components of the first station (e.g., a chip, circuit, or chip system). For ease of understanding, the following description assumes execution by the first station.

[0074] The method includes: determining first information for indicating a first resource unit comprising 106 subcarriers, wherein the index of the first 53 or the last 53 subcarriers of the first resource unit has the following relationship with the index of the subcarriers of a discrete resource unit comprising 242 subcarriers:

[0075] Send this first message.

[0076] Where the index is C i And indices N1 to N a+b+c+d+e+f+g+h All subcarriers belong to the discrete resource unit consisting of 242 subcarriers, i = 1, 2, ..., 53, k1 to k6 and a to h are all non-negative integers, and a + b + c + d + e + f + g + h = 7.

[0077] Index is C i All subcarriers belong to the first resource unit, and their indices are N1 to N. a+b+c+d+e+f+g+h None of the subcarriers belong to the first resource unit.

[0078] For example, the first resource unit indicated by the first information is a resource unit allocated by the first site to the second site.

[0079] Based on the above scheme, it is advantageous to construct a first resource unit where the index difference between any two adjacent subcarriers is an integer multiple of 8. This can be equivalent to upsampling a continuous RU in the frequency domain. Since upsampling in the frequency domain does not change the PAPR of the signal, the PAPR of this first resource unit can be equivalent to the PAPR of a continuous RU. Compared with other distributed RUs, using the first resource unit can reduce PAPR and improve communication performance.

[0080] In conjunction with the fifth aspect, in some implementations of the fifth aspect, the method further includes: determining second information for indicating a second resource unit comprising 52 subcarriers, wherein the indices of the 104 subcarriers in the first resource unit are arranged in ascending order as: [A1, B1, A2, B2, ..., A 52 B 52 ]; where the index is A i Or B i The subcarriers belong to the second resource element, i = 1, 2, ..., 52; the second information is transmitted.

[0081] Based on the above scheme, it is advantageous to construct a second resource unit where the index difference between any two adjacent subcarriers is an integer multiple of 8. This can be equivalent to upsampling a continuous RU in the frequency domain. Since upsampling in the frequency domain does not change the PAPR of the signal, the PAPR of this second resource unit can be equivalent to the PAPR of a continuous RU. Compared with other distributed RUs, using the second resource unit can reduce the PAPR and improve communication performance.

[0082] Sixthly, a method of communication is provided. This method can be executed by a second station or by components of the second station (e.g., a chip, circuit, or chip system). For ease of understanding, the following description assumes execution by the second station.

[0083] The method includes: receiving first information, the first information being used to indicate a first resource unit, the first resource unit comprising 106 subcarriers, wherein the index of the first 53 or the last 53 subcarriers of the first resource unit has the following relationship with the index of the subcarriers of a discrete resource unit comprising 242 subcarriers:

[0084] Data is sent or received according to the first resource unit.

[0085] Where the index is C i And indices N1 to N a+b+c+d+e+f+g+h All subcarriers belong to the discrete resource unit consisting of 242 subcarriers, i = 1, 2, ..., 53, k1 to k6 and a to h are all non-negative integers, and a + b + c + d + e + f + g + h = 7.

[0086] Index is C i All subcarriers belong to the first resource unit, and their indices are N1 to N. a+b+c+d+e+f+g+h None of the subcarriers belong to the first resource unit.

[0087] In conjunction with the sixth aspect, in some implementations of the sixth aspect, the method further includes: receiving second information for indicating a second resource unit, the second resource unit comprising 52 subcarriers, wherein the indices of the 104 subcarriers in the first resource unit are arranged in ascending order as: [A1, B1, A2, B2, ..., A 52 B 52 ]; where the index is A i Or B i The subcarriers belong to the second resource unit, i = 1, 2, ..., 52; data is transmitted or received according to the second resource unit.

[0088] The beneficial effects of the sixth aspect can be referred to the description in the fifth aspect above, and will not be elaborated here.

[0089] In conjunction with the fifth or sixth aspect, in certain implementations of the fifth or sixth aspect, the index of the subcarriers included in the second resource unit is one of the following: [-483:24:-315,-299:16:-27,21:16:293,309:24:477]; [-475:24:-307,-291:16:-19,29:16:301,317:24:485]; [-479:24:-311,-295:16:-23,25:16:297,313:24:481]; [-487:24... [-319,-303:16:-31,17:16:289,305:24:473];[-481:24:-313,-297:16:-25,23:16:295,311:24:479];[-473:24:-305,-289:16:-17,31:16:303,319:24:487];[-477:24:-309,-293:16:-21,27:16:299,315:24:483];[-485:24:-317,-301:16: [-29,19:16:291,307:24:475];[-482:24:-314,-298:16:-26,22:16:294,310:24:478];[-474:24:-306,-290:16:-18,30:16:302,318:24:486];[-478:24:-310,-294:16:-22,26:16:298,314:24:482];[-486:24:-318,-302:16:-30,18:16:290, [306:24:474];[-480:24:-312,-296:16:-24,24:16:296,312:24:480];[-472:24:-304,-288:16:-16,32:16:304,320:24:488];[-476:24:-308,-292:16:-20,28:16:300,316:24:484];or, [-484:24:-316,-300:16:-28,20:16:292,308:24:476].

[0090] In conjunction with the fifth or sixth aspect, in some implementations of the fifth or sixth aspect, the index of the subcarriers included in the second resource unit is one of the following:

[0091] [-475:72:-43,-459:72:-27,-443:72:-83,-427:72:-67,21:72:453,37:72:469,61:72:421,77:72:437]；

[0092] [-467:72:-35,-451:72:-19,-435:72:-75,-419:72:-59,29:72:461,45:72:477,69:72:429,85:72:445]；

[0093] [-471:72:-39,-455:72:-23,-439:72:-79,-423:72:-63,25:72:457,41:72:473,65:72:425,81:72:441]；

[0094] [-479:72:-47,-463:72:-31,-447:72:-87,-431:72:-71,17:72:449,33:72:465,57:72:417,73:72:433]；

[0095] [-473:72:-41,-457:72:-25,-441:72:-81,-425:72:-65,23:72:455,39:72:471,63:72:423,79:72:439]；

[0096] [-465:72:-33,-449:72:-17,-433:72:-73,-417:72:-57,31:72:463,47:72:479,71:72:431,87:72:447]；

[0097] [-469:72:-37,-453:72:-21,-437:72:-77,-421:72:-61,27:72:459,43:72:475,67:72:427,83:72:443]；

[0098] [-477:72:-45,-461:72:-29,-445:72:-85,-429:72:-69,19:72:451,35:72:467,59:72:419,75:72:435]；

[0099] [-474:72:-42,-458:72:-26,-442:72:-82,-426:72:-66,22:72:454,38:72:470,62:72:422,78:72:438];

[0100] [-466:72:-34,-450:72:-18,-434:72:-74,-418:72:-58,30:72:462,46:72:478,70:72:430,86:72:446];

[0101] [-470:72:-38,-454:72:-22,-438:72:-78,-422:72:-62,26:72:458,42:72:474,66:72:426,82:72:442];

[0102] [-478:72:-46,-462:72:-30,-446:72:-86,-430:72:-70,18:72:450,34:72:466,58:72:418,74:72:434];

[0103] [-472:72:-40,-456:72:-24,-440:72:-80,-424:72:-64,24:72:456,40:72:472,64:72:424,80:72:440];

[0104] [-464:72:-32,-448:72:-16,-432:72:-72,-416:72:-56,32:72:464,48:72:480,72:72:432,88:72:448];

[0105] [-468:72:-36,-452:72:-20,-436:72:-76,-420:72:-60,28:72:460,44:72:476,68:72:428,84:72:444]; or,

[0106] [-476:72:-44,-460:72:-28,-444:72:-84,-428:72:-68,20:72:452,36:72:468,60:72:420,76:72:436].

[0107] In conjunction with the first aspect, the second aspect, the fifth aspect, or the sixth aspect, in some implementations of the first aspect, the second aspect, the fifth aspect, or the sixth aspect, the first resource element comprises 106 carriers, and the index of the subcarriers included in the first resource element is one of the following:

[0108] [-483:24:-363,-475:24:-355,-339:8:-19,21:8:341,357:24:477,365:24:485];

[0109] [-487:24:-367,-479:24:-359,-343:8:-23,17:8:337,353:24:473,361:24:481];

[0110] [-481:24:-361,-473:24:-353,-337:8:-17,23:8:343,359:24:479,367:24:487];

[0111] [-485:24:-365,-477:24:-357,-341:8:-21,19:8:339,355:24:475,363:24:483];

[0112] [-482:24:-362,-474:24:-354,-338:8:-18,22:8:342,358:24:478,366:24:486];

[0113] [-486:24:-366,-478:24:-358,-342:8:-22,18:8:338,354:24:474,362:24:482];

[0114] [-480:24:-360,-472:24:-352,-336:8:-16,24:8:344,360:24:480,368:24:488]; or,

[0115] [-484:24:-364,-476:24:-356,-340:8:-20,20:8:340,356:24:476,364:24:484].

[0116] In conjunction with the first aspect, the second aspect, the fifth aspect, or the sixth aspect, in some implementations of the first aspect, the second aspect, the fifth aspect, or the sixth aspect, the first resource element comprises 106 carriers, and the index of the subcarriers included in the first resource element is one of the following:

[0117] [-475:72:-43,-467:72:-35,-459:72:-27,-451:72:-19,-443:72:-83,-435:72:-75,-427:72:-67,-419:72:-59,-51,21:72:453,29:72:461,37:72:469,45:72:477,53,61:72:421,69:72:429,77:72:437,85:72:445]；

[0118] [-479:72:-47,-471:72:-39,-463:72:-31,-455:72:-23,-447:72:-87,-439:72:-79,-431:72:-71,-423:72:-63,-55,17:72:449,25:72:457,33:72:465,41:72:473,49,57:72:417,65:72:425,73:72:433,81:72:441]；

[0119] [-473:72:-41,-465:72:-33,-457:72:-25,-449:72:-17,-441:72:-81,-433:72:-73,-425:72:-65,-417:72:-57,-49,23:72:455,31:72:463,39:72:471,47:72:479,55,63:72:423,71:72:431,79:72:439,87:72:447]；

[0120] [-477:72:-45,-469:72:-37,-461:72:-29,-453:72:-21,-445:72:-85,-437:72:-77,-429:72:-69,-421:72:-61,-53,19:72:451,27:72:459,35:72:467,43:72:475,51,59:72:419,67:72:427,75:72:435,83:72:443]；

[0121] [-474:72:-42,-466:72:-34,-458:72:-26,-450:72:-18,-442:72:-82,-434:72:-74,-426:72:-66,-418:72:-58,-50,22:72:454,30:72:462,38:72:470,46:72:478,54,62:72:422,70:72:430,78:72:438,86:72:446];

[0122] [-478:72:-46,-470:72:-38,-462:72:-30,-454:72:-22,-446:72:-86,-438:72:-78,-430:72:-70,-422:72:-62,-54,18:72:450,26:72:458,34:72:466,42:72:474,50,58:72:418,66:72:426,74:72:434,82:72:442];

[0123] [-472:72:-40,-464:72:-32,-456:72:-24,-448:72:-16,-440:72:-80,-432:72:-72,-424:72:-64,-416:72:-56,-48,24:72:456,32:72:464,40:72:472,48:72:480,56,64:72:424,72:72:432,80:72:440,88:72:448]; or,

[0124] [-476:72:-44,-468:72:-36,-460:72:-28,-452:72:-20,-444:72:-84,-436:72:-76,-428:72:-68,-420:72:-60,-52,20:72:452,28:72:460,36:72:468,44:72:476,52,60:72:420,68:72:428,76:72:436,84:72:444].

[0125] In a seventh aspect, a method of communication is provided. This method can be executed by a first station or by components of the first station (e.g., a chip, circuit, or chip system). For ease of understanding, the following description assumes execution by the first station.

[0126] The method includes: determining first information, the first information being used to indicate a first resource element distributed within a 160MHz bandwidth, wherein the difference between the indices of any two adjacent subcarriers within the first resource element is 2. n The value is an integer multiple of the index of the first resource unit, and the minimum difference between the indices of adjacent subcarriers is 2. m n and m are positive integers; send this first message.

[0127] For example, the first resource unit indicated by the first information is a resource unit allocated by the first site to the second site.

[0128] Based on the above scheme, the first station can indicate a first resource unit to the second station, where the index difference between any two adjacent subcarriers in the first resource unit can be expressed as 2. n An integer multiple of the PAPR can be equivalent to upsampling the continuous RU in the frequency domain. Since upsampling in the frequency domain does not change the PAPR of the signal, the PAPR of the first resource unit can be equivalent to the PAPR of the continuous RU. Compared with other distributed RUs, using the first resource unit can reduce the PAPR and improve communication performance.

[0129] Optionally, the first resource element comprises 996 subcarriers, n = m = 1; or, the first resource element comprises 484 subcarriers, n = m = 2; or, the first resource element comprises 242 subcarriers, n = m = 3; or, the first resource element comprises 106 subcarriers, n = 3, m = 4.

[0130] Optionally, the difference between the indices of adjacent subcarriers in the first resource unit is not necessarily an integer multiple of 16.

[0131] Based on the above technical solution, the problem of PPDU false detection can be avoided by the receiving end mistaking the transmission on the first resource unit as an L-STF field when performing delay correlation detection.

[0132] Eighthly, a method of communication is provided. This method can be executed by a second station or by components of the second station (e.g., a chip, circuit, or chip system). For ease of understanding, the following description assumes execution by the second station.

[0133] The method includes: receiving first information, the first information indicating a first resource element distributed in a 160MHz bandwidth, wherein the difference between the indices of any two adjacent subcarriers in the first resource element is 2. n The value is an integer multiple of the index of the first resource unit, and the minimum difference between the indices of adjacent subcarriers is 2. m n and m are positive integers; data is sent or received according to the first resource unit.

[0134] Optionally, the first resource element comprises 996 subcarriers, n = m = 1; or, the first resource element comprises 484 subcarriers, n = m = 2; or, the first resource element comprises 242 subcarriers, n = m = 3; or, the first resource element comprises 106 subcarriers, n = 3, m = 4.

[0135] Optionally, the difference between the indices of adjacent subcarriers in the first resource unit is not necessarily an integer multiple of 16.

[0136] The beneficial effects of the eighth aspect can be referred to the description in the seventh aspect above, and will not be elaborated here.

[0137] Ninthly, a method of communication is provided. This method can be performed by a first station or by components of the first station (e.g., a chip, circuit, or chip system). For ease of understanding, the following description assumes that the method is performed by the first station.

[0138] The method includes: determining first information for indicating a first resource unit distributed within a 160MHz bandwidth, the first resource unit comprising 996 subcarriers, wherein the index of the subcarriers of the first resource unit has the following relationship with the indexes of the 2048 subcarriers contained in the 160MHz bandwidth:

[0139] Send this first message.

[0140] Wherein, the index is or The subcarriers belong to the first resource unit, i = 1, 2, 3, ..., 996, and are indexed from N1 to N2. The subcarriers belong to empty subcarriers, with indices D1 to D2. The subcarrier is a DC subcarrier, k1+k2+k3=56, and k2 is an even number, while k1 to k3 are all non-negative integers.

[0141] For example, the first resource unit indicated by the first information is a resource unit allocated by the first site to the second site.

[0142] Based on the above scheme, it is advantageous to construct a first resource unit in which the index difference between any two adjacent subcarriers is an integer multiple of 2. This can be equivalent to upsampling a continuous RU in the frequency domain. Since upsampling in the frequency domain does not change the PAPR of the signal, the PAPR of the first resource unit can be equivalent to the PAPR of the continuous RU. Compared with other distributed RUs, using the first resource unit can reduce the PAPR and improve communication performance.

[0143] In a tenth aspect, a method of communication is provided. This method can be executed by a second station or by components of the second station (e.g., a chip, circuit, or chip system). For ease of understanding, the following description assumes execution by a second station.

[0144] The method includes: receiving first information, the first information being used to indicate a first resource unit distributed in a 160MHz bandwidth, the first resource unit comprising 996 subcarriers, the index of the subcarriers of the first resource unit having the following relationship with the indexes of the 2048 subcarriers contained in the 160MHz bandwidth:

[0145] Data is received or sent according to the first resource unit.

[0146] Wherein, the index is or The subcarriers belong to the first resource unit, i = 1, 2, 3, ..., 996, and are indexed from N1 to N2. The subcarriers belong to empty subcarriers, with indices D1 to D2. The subcarrier is a DC subcarrier, k1+k2+k3=56, and k2 is an even number, while k1 to k3 are all non-negative integers.

[0147] The beneficial effects of the tenth aspect can be referred to the description in the ninth aspect above, and will not be elaborated here.

[0148] In conjunction with aspects seven and eight, in some implementations of aspects seven and eight, the first resource unit includes 996 subcarriers, and the index of the subcarriers included in the first resource unit is one of the following: [-1010:2:-16,14:2:1008]; or [-1009:2:-15,15:2:1009];

[0149] Eleventhly, a method of communication is provided. This method can be executed by a first station or by components of the first station (e.g., a chip, circuit, or chip system). For ease of understanding, the following description assumes execution by the first station.

[0150] The method includes: determining first information for indicating a first resource element distributed in a 160MHz bandwidth, the first resource element comprising 484 subcarriers, wherein the index of the subcarriers of the first resource element has the following relationship with the index of the subcarriers contained in a discrete resource element comprising 996 subcarriers:

[0151] Send this first message.

[0152] Wherein, the index is and N1 to All subcarriers belong to this discrete resource unit comprising 996 subcarriers, indexed as follows: or The subcarriers belong to the first resource unit, i = 1, 2, 3, ..., 484, and are indexed from N1 to N2. The subcarrier does not belong to the first resource unit, k4+k5+k6=28, and k5 is an even number, while k4 and k6 are non-negative integers.

[0153] For example, the first resource unit indicated by the first information is a resource unit allocated by the first site to the second site.

[0154] Based on the above scheme, it is advantageous to construct a first resource unit in which the index difference between any two adjacent subcarriers is an integer multiple of 4. This can be equivalent to upsampling a continuous RU in the frequency domain. Since upsampling in the frequency domain does not change the PAPR of the signal, the PAPR of the first resource unit can be equivalent to the PAPR of the continuous RU. Compared with other distributed RUs, using the first resource unit can reduce the PAPR and improve communication performance.

[0155] In a twelfth aspect, a method of communication is provided. This method can be executed by a second station or by components of the second station (e.g., a chip, circuit, or chip system). For ease of understanding, the following description assumes execution by a second station.

[0156] The method includes: receiving first information, the first information being used to indicate a first resource unit distributed in a 160MHz bandwidth, the first resource unit comprising 484 subcarriers, the index of the subcarriers of the first resource unit having the following relationship with the index of the subcarriers contained in a discrete resource unit comprising 996 subcarriers:

[0157] Data is sent or received according to the first resource unit.

[0158] Wherein, the index is and N1 to N k4+k5+k6 All subcarriers belong to this discrete resource unit comprising 996 subcarriers, indexed as follows: or The subcarriers belong to the first resource unit, i = 1, 2, 3, ..., 484, and are indexed from N1 to N2. The subcarrier does not belong to the first resource unit, k4+k5+k6=28, and k5 is an even number, while k4 and k6 are non-negative integers.

[0159] The beneficial effects of the twelfth aspect can be referred to the description in the eleventh aspect above, and will not be elaborated here.

[0160] In conjunction with the seventh, eighth, eleventh, or twelfth aspects, in some implementations of the seventh, eighth, eleventh, or twelfth aspects, the first resource element includes 484 subcarriers, the index of the subcarriers included in the first resource element being one of the following: [-996:4:-32,28:4:992]; [-994:4:-30,30:4:994]; [-995:4:-31,29:4:993]; or [-993:4:-29,31:4:995].

[0161] In a thirteenth aspect, a method of communication is provided. This method can be performed by a first station or by components of the first station (e.g., a chip, circuit, or chip system). For ease of understanding, the following description assumes that the method is performed by the first station.

[0162] The method includes: determining first information for indicating a first resource element distributed in a 160MHz bandwidth, the first resource element comprising 242 subcarriers, wherein the index of the subcarriers of the first resource element has the following relationship with the index of the subcarriers contained in a discrete resource element comprising 484 subcarriers:

[0163] Send this first message.

[0164] Wherein, the index is and All subcarriers belong to this discrete resource unit comprising 484 subcarriers, indexed as follows: or The subcarriers belong to the first resource unit, i = 1, 2, 3, ..., 242.

[0165] For example, the first resource unit indicated by the first information is a resource unit allocated by the first site to the second site.

[0166] Based on the above scheme, it is advantageous to construct a first resource unit where the index difference between any two adjacent subcarriers is an integer multiple of 8. This can be equivalent to upsampling a continuous RU in the frequency domain. Since upsampling in the frequency domain does not change the PAPR of the signal, the PAPR of this first resource unit can be equivalent to the PAPR of a continuous RU. Compared with other distributed RUs, using the first resource unit can reduce PAPR and improve communication performance.

[0167] In a fourteenth aspect, a method of communication is provided. This method can be executed by a second station or by components of the second station (e.g., a chip, circuit, or chip system). For ease of understanding, the following description assumes execution by a second station.

[0168] The method includes: receiving first information, the first information being used to indicate a first resource unit distributed in a 160MHz bandwidth, the first resource unit comprising 242 subcarriers, the index of the subcarriers of the first resource unit having the following relationship with the index of the subcarriers contained in a discrete resource unit comprising 484 subcarriers:

[0169] Data is sent or received according to the first resource unit.

[0170] Wherein, the index is and All subcarriers belong to this discrete resource unit comprising 484 subcarriers, indexed as follows: or The subcarriers belong to the first resource unit, i = 1, 2, 3, ..., 242.

[0171] The beneficial effects of aspect fourteen can be referred to the description in aspect thirteen above, and will not be elaborated here.

[0172] In conjunction with the seventh, eighth, thirteenth, or fourteenth aspects, in certain implementations of the seventh, eighth, thirteenth, or fourteenth aspects, the first resource element comprises 242 subcarriers, the index of which is one of the following: [-996:8:-36,28:8:988]; [-992:8:-32,32:8:992]; [-994:8:-34,30:8:990]; [-990:8:-30,34:8:994]; [-995:8:-35,29:8:989]; [-991:8:-31,33:8:993]; [-993:8:-33,31:8:991]; or, [-989:8:-29,35:8:995]; or,

[0173] The subcarrier indexes included in the first resource unit are one of the following: [-994:8:-522,-506:8:-26,22:8:502,518:8:990]; [-990:8:-518,-502:8:-22,26:8:506,522:8:994]; [-992:8:-520,-504:8:-24,24:8:504,520:8:992]; [-988:8:-516,-500:8:-20,28:8:508,5 [24:8:996]; [-995:8:-523,-507:8:-27,21:8:501,517:8:989]; [-991:8:-519,-503:8:-23,25:8:505,521:8:993]; [-993:8:-521,-505:8:-25,23:8:503,519:8:991]; or, [-989:8:-517,-501:8:-21,27:8:507,523:8:995].

[0174] In a fifteenth aspect, a method of communication is provided. This method can be performed by a first station or by components of the first station (e.g., a chip, circuit, or chip system). For ease of understanding, the following description assumes that the method is performed by the first station.

[0175] The method includes: determining first information for indicating a first resource element distributed in a 160MHz bandwidth, the first resource element comprising 106 subcarriers, wherein the index of the subcarriers of the first resource element has the following relationship with the index of the subcarriers contained in a discrete resource element comprising 242 subcarriers:

[0176] Send this first message.

[0177] Wherein, the index is and All subcarriers belong to this discrete resource unit comprising 242 subcarriers, indexed as follows: or The subcarrier belongs to the first resource unit, and its index is... The subcarriers do not belong to the first resource unit. When j = 1, 2, ..., 11, i = 1, 2, 3, ..., l1 when j = 1, i = 1, 2, 3, ..., l2 when j = 2, i = 1, 2, 3, ..., l3 when j = 3, i = 1, 2, 3, ..., l3 when j = 4, i = 1, 2, 3, ..., l4 when j = 5, i = 1, 2, 3, ..., l5 when j = 6, i = 1, 2, 3, ..., l6 when j = 7, i = 1, 2, 3, ..., l7 when j = 8, i = 1, 2, 3, ..., l8 when j = 9, i = 1, 2, 3, ..., l9 when j = 10, i = 1, 2, 3, ..., l 10 ,k7+k8+…+k 17 =30, k7 to k 17 The integers are non-negative, and k8, k9, k 10 k 11 k 13 k 14 k 15 and k 16 At least one of them is odd, k 12 For even numbers, l1 + l2 + ... + l 10 =106, l1 to l 10 It is a non-negative integer.

[0178] For example, the first resource unit indicated by the first information is a resource unit allocated by the first site to the second site.

[0179] Based on the above scheme, it is advantageous to construct a first resource unit where the index difference between any two adjacent subcarriers is an integer multiple of 8. This can be equivalent to upsampling a continuous RU in the frequency domain. Since upsampling in the frequency domain does not change the PAPR of the signal, the PAPR of this first resource unit can be equivalent to the PAPR of a continuous RU. Compared with other distributed RUs, using the first resource unit can reduce PAPR and improve communication performance.

[0180] In a sixteenth aspect, a method of communication is provided. This method can be executed by a second station or by components of the second station (e.g., a chip, circuit, or chip system). For ease of understanding, the following description assumes execution by a second station.

[0181] The method includes: receiving first information, the first information being used to indicate a first resource unit distributed in a 160MHz bandwidth, the first resource unit comprising 106 subcarriers, the index of the subcarriers of the first resource unit having the following relationship with the index of the subcarriers contained in a discrete resource unit comprising 242 subcarriers:

[0182] Data is sent or received according to the first resource unit.

[0183] Wherein, the index is and All subcarriers belong to this discrete resource unit comprising 242 subcarriers, indexed as follows: or The subcarrier belongs to the first resource unit, and its index is... The subcarriers do not belong to the first resource unit. When j = 1, 2, ..., 11, i = 1, 2, 3, ..., l1 when j = 1, i = 1, 2, 3, ..., l2 when j = 2, i = 1, 2, 3, ..., l3 when j = 3, i = 1, 2, 3, ..., l3 when j = 4, i = 1, 2, 3, ..., l4 when j = 5, i = 1, 2, 3, ..., l5 when j = 6, i = 1, 2, 3, ..., l6 when j = 7, i = 1, 2, 3, ..., l7 when j = 8, i = 1, 2, 3, ..., l8 when j = 9, i = 1, 2, 3, ..., l9 when j = 10, i = 1, 2, 3, ..., l 10 ,k7+k8+…+k 17 =30, k7 to k 17 The integers are non-negative, and k8, k9, k 10 k 11 k 13 k 14 k 15 and k 16 At least one of them is odd, k 12 For even numbers, l1 + l2 + ... + l 10 =106, l1 to l 10 It is a non-negative integer.

[0184] The beneficial effects of the sixteenth aspect can be referred to the description in the fifteenth aspect above, and will not be elaborated here.

[0185] In conjunction with the seventh, eighth, fifteenth, or sixteenth aspects, in some implementations of the seventh, eighth, fifteenth, or sixteenth aspects, the first resource element includes 106 subcarriers, the index of the subcarriers included in the first resource element being one of the following: [-948:16:-884,-860:16:-668,-644:16:-404,-380:16:-188,-164:16:-84,68:16:148,172:16:364,388:16:628,652:16:844,868:16:932];

[0186] [-940:16:-876,-852:16:-660,-636:16:-396,-372:16:-180,-156:16:-76,76:16:156,180:16:372,396:16:636,660:16:852,876:16:940]；

[0187] [-944:16:-880,-856:16:-664,-640:16:-400,-376:16:-184,-160:16:-80,72:16:152,176:16:368,392:16:632,656:16:848,872:16:936]；

[0188] [-936:16:-872,-848:16:-656,-632:16:-392,-368:16:-176,-152:16:-72,80:16:160,184:16:376,400:16:640,664:16:856,880:16:944]；

[0189] [-946:16:-882,-858:16:-666,-642:16:-402,-378:16:-186,-162:16:-82,70:16:150,174:16:366,390:16:630,654:16:846,870:16:934]；

[0190] [-938:16:-874,-850:16:-658,-634:16:-394,-370:16:-178,-154:16:-74,78:16:158,182:16:374,398:16:638,662:16:854,878:16:942]；

[0191] [-942:16:-878,-854:16:-662,-638:16:-398,-374:16:-182,-158:16:-78,74:16:154,178:16:370,394:16:634,658:16:850,874:16:938]；

[0192] [-934:16:-870,-846:16:-654,-630:16:-390,-366:16:-174,-150:16:-70,82:16:162,186:16:378,402:16:642,666:16:858,882:16:946]；

[0193] [-947:16:-883,-859:16:-667,-643:16:-403,-379:16:-187,-163:16:-83,69:16:149,173:16:365,389:16:629,653:16:845,869:16:933]；

[0194] [-939:16:-875,-851:16:-659,-635:16:-395,-371:16:-179,-155:16:-75,77:16:157,181:16:373,397:16:637,661:16:853,877:16:941]；

[0195] [-943:16:-879,-855:16:-663,-639:16:-399,-375:16:-183,-159:16:-79,73:16:153,177:16:369,393:16:633,657:16:849,873:16:937]；

[0196] [-935:16:-871,-847:16:-655,-631:16:-391,-367:16:-175,-151:16:-71,81:16:161,185:16:377,401:16:641,665:16:857,881:16:945]；

[0197] [-945:16:-881,-857:16:-665,-641:16:-401,-377:16:-185,-161:16:-81,71:16:151,175:16:367,391:16:631,655:16:847,871:16:935]；

[0198] [-937:16:-873,-849:16:-657,-633:16:-393,-369:16:-177,-153:16:-73,79:16:159,183:16:375,399:16:639,663:16:855,879:16:943]；

[0199] [-941:16:-877,-853:16:-661,-637:16:-397,-373:16:-181,-157:16:-77,75:16:155,179:16:371,395:16:635,659:16:851,875:16:939]; or,

[0200] [-933:16:-869,-845:16:-653,-629:16:-389,-365:16:-173,-149:16:-69,83:16:163,187:16:379,403:16:643,667:16:859,883:16:947].

[0201] In a seventeenth aspect, a method of communication is provided. This method can be performed by a first station or by components of the first station (e.g., a chip, circuit, or chip system). For ease of understanding, the following description assumes that the method is performed by the first station.

[0202] The method includes: determining first information for indicating a first resource unit distributed within a 160MHz bandwidth, the first resource unit comprising 996 subcarriers, wherein the index of the subcarriers of the first resource unit has the following relationship with the indexes of the 2048 subcarriers contained in the 160MHz bandwidth:

[0203] Send this first message.

[0204] Wherein, the index is The subcarriers belong to the first resource unit, i = 1, 2, 3, ..., 996, and are indexed from N1 to N2. The subcarriers belong to empty subcarriers, with indices D1 to D2. The subcarrier is a DC subcarrier, k 1’ +k 2’ +k 3’ +k 4’ +k 5’ =56,k 1’ To k 5’ All are non-negative integers, and k 3’ It is an even number.

[0205] For example, the first resource unit indicated by the first information is a resource unit allocated by the first site to the second site.

[0206] Based on the above scheme, it is advantageous to construct a first resource unit in which the index difference between any two adjacent subcarriers is an integer multiple of 2. This can be equivalent to upsampling a continuous RU in the frequency domain. Since upsampling in the frequency domain does not change the PAPR of the signal, the PAPR of the first resource unit can be equivalent to the PAPR of the continuous RU. Compared with other distributed RUs, using the first resource unit can reduce the PAPR and improve communication performance.

[0207] In an eighteenth aspect, a method of communication is provided. This method can be executed by a second station or by components of the second station (e.g., a chip, circuit, or chip system). For ease of understanding, the following description assumes execution by a second station.

[0208] The method includes: receiving first information, the first information being used to indicate a first resource unit distributed in a 160MHz bandwidth, the first resource unit comprising 106 subcarriers, the index of the subcarriers of the first resource unit having the following relationship with the indexes of the 2048 subcarriers contained in the 160MHz bandwidth:

[0209] Data is sent or received according to the first resource unit.

[0210] Wherein, the index is The subcarriers belong to the first resource unit, i = 1, 2, 3, ..., 996, and are indexed from N1 to N2. The subcarriers belong to empty subcarriers, with indices D1 to D2. The subcarrier is a DC subcarrier, k 1’ +k 2’ +k 3’ +k 4’ +k 5’ =56,k 1’ To k 5’ All are non-negative integers, and k 3’ It is an even number.

[0211] The beneficial effects of aspect eighteen can be referred to the description in aspect seventeen above, and will not be elaborated here.

[0212] In conjunction with the seventh, eighth, seventeenth, or eighteenth aspects, in some implementations of the seventh, eighth, seventeenth, or eighteenth aspects, the first resource element includes 996 subcarriers, the index of the subcarriers included in the first resource element being one of the following: [-1012:2:-516,-508:2:-12,12:2:508,516:2:1012]; or [-1011:2:-515,-509:2:-13,13:2:509,515:2:1011].

[0213] In a nineteenth aspect, a method of communication is provided. This method can be performed by a first station or by components of the first station (e.g., a chip, circuit, or chip system). For ease of understanding, the following description assumes that the method is performed by the first station.

[0214] The method includes: determining first information for indicating a first resource unit distributed in a 160MHz bandwidth, the first resource unit comprising 484 subcarriers, wherein the index of the subcarriers of the first resource unit has the following relationship with the index of the 996 subcarriers contained in a discrete resource unit comprising 996 subcarriers:

[0215] Send this first message.

[0216] Wherein, the index is and All subcarriers belong to this discrete resource unit comprising 996 subcarriers, indexed as follows: or The subcarrier belongs to the first resource unit, and its index is... The subcarrier does not belong to the first resource unit. j = 1, 2, ..., 5. When j = 1, i = 1, 2, 3, ..., l1. When j = 2, i = 1, 2, 3, ..., l2. When j = 3, i = 1, 2, 3, ..., l3. When j = 4, i = 1, 2, 3, ..., l4. k1 + k2 + k3 + k4 + k5 = 28, l1 + l2 + l3 + l4 = 484. k1 to k5 and l1 to l4 are all non-negative integers.

[0217] For example, the first resource unit indicated by the first information is a resource unit allocated by the first site to the second site.

[0218] Based on the above scheme, it is advantageous to construct a first resource unit in which the index difference between any two adjacent subcarriers is an integer multiple of 4. This can be equivalent to upsampling a continuous RU in the frequency domain. Since upsampling in the frequency domain does not change the PAPR of the signal, the PAPR of the first resource unit can be equivalent to the PAPR of the continuous RU. Compared with other distributed RUs, using the first resource unit can reduce the PAPR and improve communication performance.

[0219] In a twentieth aspect, a method of communication is provided. This method can be executed by a second station, or by components of the second station (e.g., a chip, circuit, or chip system). For ease of understanding, the following description assumes execution by a second station.

[0220] The method includes: receiving first information, the first information being used to indicate a first resource unit distributed in a 160MHz bandwidth, the first resource unit comprising 106 subcarriers, the index of the subcarriers of the first resource unit having the following relationship with the indexes of the 2048 subcarriers contained in the 160MHz bandwidth:

[0221] Data is sent or received according to the first resource unit.

[0222] Wherein, the index is and All subcarriers belong to this discrete resource unit comprising 996 subcarriers, indexed as follows: or The subcarrier belongs to the first resource unit, and its index is... The subcarrier does not belong to the first resource unit. j = 1, 2, ..., 5. When j = 1, i = 1, 2, 3, ..., l1. When j = 2, i = 1, 2, 3, ..., l2. When j = 3, i = 1, 2, 3, ..., l3. When j = 4, i = 1, 2, 3, ..., l4. k1 + k2 + k3 + k4 + k5 = 28, l1 + l2 + l3 + l4 = 484. k1 to k5 and l1 to l4 are all non-negative integers.

[0223] The beneficial effects of aspect 20 can be referred to in the description of aspect 19 above, and will not be elaborated here.

[0224] In conjunction with the seventh, eighth, nineteenth, or twentieth aspects, in some implementations of the seventh, eighth, nineteenth, or twentieth aspects, the first resource unit includes 484 subcarriers, the index of which is one of the following: [-994:4:-518,-506:4:-22,22:4:506,518:4:994]; [-992:4:-516,-504:4:-20,24:4:508,520:4:996]; [-995:4:-519,-507:4:-23,21:4:505,517:4:993]; or [-993:4:-517,-505:4:-21,23:4:507,519:4:995].

[0225] In a twenty-first aspect, a method of communication is provided. This method can be executed by a first station or by components of the first station (e.g., a chip, circuit, or chip system). For ease of understanding, the following description assumes execution by the first station.

[0226] The method includes: determining first information for indicating a first resource unit distributed in a 160MHz bandwidth, the first resource unit comprising 106 subcarriers, wherein the index of the subcarriers of the first resource unit has the following relationship with the index of the 242 subcarriers contained in a discrete resource unit comprising 242 subcarriers:

[0227] Send this first message.

[0228] Wherein, the index is and All subcarriers belong to this discrete resource unit comprising 242 subcarriers, indexed as follows: or The subcarrier belongs to the first resource unit, and its index is... The subcarrier does not belong to the first resource unit. When j = 1, 2, ..., 13, i = 1, 2, 3, ..., l5 when j = 1, i = 1, 2, 3, ..., l6 when j = 2, i = 1, 2, 3, ..., l7 when j = 3, i = 1, 2, 3, ..., l7 when j = 4, i = 1, 2, 3, ..., l8 when j = 5, i = 1, 2, 3, ..., l9 when j = 6, i = 1, 2, 3, ..., l 10 When j = 7, i = 1, 2, 3, ..., l 11 When j = 8, i = 1, 2, 3, ..., l 12 When j = 9, i = 1, 2, 3, ..., l 13 When j = 10, i = 1, 2, 3, ..., l 14 When j = 11, i = 1, 2, 3, ..., l 15 When j = 12, i = 1, 2, 3, ..., l 16 ,k6+k7+…+k 18 =30, k6 to k 18 The integers are non-negative, and k7, k8, k9, k 10 k 11 k 13 k 14 k 15 k 16 and k 17 At least one of them is odd, k 12 It is an even number. l5 + l6 + ... + l 16 =106, l5 to l 16 It is a non-negative integer.

[0229] For example, the first resource unit indicated by the first information is a resource unit allocated by the first site to the second site.

[0230] Based on the above scheme, it is advantageous to construct a first resource unit where the index difference between any two adjacent subcarriers is an integer multiple of 8. This can be equivalent to upsampling a continuous RU in the frequency domain. Since upsampling in the frequency domain does not change the PAPR of the signal, the PAPR of this first resource unit can be equivalent to the PAPR of a continuous RU. Compared with other distributed RUs, using the first resource unit can reduce PAPR and improve communication performance.

[0231] In a twenty-second aspect, a method of communication is provided. This method can be executed by a second station or by components of the second station (e.g., a chip, circuit, or chip system). For ease of understanding, the following description assumes execution by a second station.

[0232] The method includes: receiving first information, the first information being used to indicate a first resource unit distributed in a 160MHz bandwidth, the first resource unit comprising 106 subcarriers, the index of the subcarriers of the first resource unit having the following relationship with the indexes of the 2048 subcarriers contained in the 160MHz bandwidth:

[0233] Data is sent or received according to the first resource unit.

[0234] Wherein, the index is and All subcarriers belong to this discrete resource unit comprising 242 subcarriers, indexed as follows: or The subcarrier belongs to the first resource unit, and its index is... The subcarrier does not belong to the first resource unit. When j = 1, 2, ..., 13, i = 1, 2, 3, ..., l5 when j = 1, i = 1, 2, 3, ..., l6 when j = 2, i = 1, 2, 3, ..., l7 when j = 3, i = 1, 2, 3, ..., l7 when j = 4, i = 1, 2, 3, ..., l8 when j = 5, i = 1, 2, 3, ..., l9 when j = 6, i = 1, 2, 3, ..., l 10 When j = 7, i = 1, 2, 3, ..., l 11 When j = 8, i = 1, 2, 3, ..., l 12 When j = 9, i = 1, 2, 3, ..., l 13 When j = 10, i = 1, 2, 3, ..., l 14 When j = 11, i = 1, 2, 3, ..., l 15 When j = 12, i = 1, 2, 3, ..., l 16 ,k6+k7+…+k 18 =30, k6 to k 18 The integers are non-negative, and k7, k8, k9, k10 k 11 k 13 k 14 k 15 k 16 and k 17 At least one of them is odd, k 12 It is an even number. l5 + l6 + ... + l 16 =106, l5 to l 16 It is a non-negative integer.

[0235] The beneficial effects of aspect 22 can be referred to the description in aspect 21 above, and will not be elaborated here.

[0236] In conjunction with aspects seven, eight, twenty-two, or twenty-one, in some implementations of aspects seven, eight, twenty-two, or twenty-one, the first resource element comprises 106 subcarriers, and the index of the subcarriers included in the first resource element is one of the following: [-962:16:-898,-874:16:-666,-642:16:-546,-490:16:-394,-370:16:-178,-154:16:-58,46:16:142,166:16:358,382:16:478,534:16:630,654:16:862,886:16:950];

[0237] [-954:16:-890,-866:16:-658,-634:16:-538,-482:16:-386,-362:16:-170,-146:16:-50,54:16:150,174:16:366,390:16:486,542:16:638,662:16:870,894:16:958];

[0238] [-958:16:-894,-870:16:-662,-638:16:-542,-486:16:-390,-366:16:-174,-150:16:-54,50:16:146,170:16:362,386:16:482,538:16:634,658:16:866,890:16:954];

[0239] [-950:16:-886,-862:16:-654,-630:16:-534,-478:16:-382,-358:16:-166,-142:16:-46,58:16:154,178:16:370,394:16:490,546:16:642,666:16:874,898:16:962]；

[0240] [-960:16:-896,-872:16:-664,-640:16:-544,-488:16:-392,-368:16:-176,-152:16:-56,48:16:144,168:16:360,384:16:480,536:16:632,656:16:864,888:16:952]；

[0241] [-952:16:-888,-864:16:-656,-632:16:-536,-480:16:-384,-360:16:-168,-144:16:-48,56:16:152,176:16:368,392:16:488,544:16:640,664:16:872,896:16:960]；

[0242] [-956:16:-892,-868:16:-660,-636:16:-540,-484:16:-388,-364:16:-172,-148:16:-52,52:16:148,172:16:364,388:16:484,540:16:636,660:16:868,892:16:956]；

[0243] [-948:16:-884,-860:16:-652,-628:16:-532,-476:16:-380,-356:16:-164,-140:16:-44,60:16:156,180:16:372,396:16:492,548:16:644,668:16:876,900:16:964]；

[0244] [-963:16:-899,-875:16:-667,-643:16:-547,-491:16:-395,-371:16:-179,-155:16:-59,45:16:141,165:16:357,381:16:477,533:16:629,653:16:861,885:16:949]；

[0245] [-955:16:-891,-867:16:-659,-635:16:-539,-483:16:-387,-363:16:-171,-147:16:-51,53:16:149,173:16:365,389:16:485,541:16:637,661:16:869,893:16:957]；

[0246] [-959:16:-895,-871:16:-663,-639:16:-543,-487:16:-391,-367:16:-175,-151:16:-55,49:16:145,169:16:361,385:16:481,537:16:633,657:16:865,889:16:953]；

[0247] [-951:16:-887,-863:16:-655,-631:16:-535,-479:16:-383,-359:16:-167,-143:16:-47,57:16:153,177:16:369,393:16:489,545:16:641,665:16:873,897:16:961]；

[0248] [-961:16:-897,-873:16:-665,-641:16:-545,-489:16:-393,-369:16:-177,-153:16:-57,47:16:143,167:16:359,383:16:479,535:16:631,655:16:863,887:16:951]；

[0249] [-953:16:-889,-865:16:-657,-633:16:-537,-481:16:-385,-361:16:-169,-145:16:-49,55:16:151,175:16:367,391:16:487,543:16:639,663:16:871,895:16:959]；

[0250] [-957:16:-893,-869:16:-661,-637:16:-541,-485:16:-389,-365:16:-173,-149:16:-53,51:16:147,171:16:363,387:16:483,539:16:635,659:16:867,891:16:955]; or

[0251] [-949:16:-885,-861:16:-653,-629:16:-533,-477:16:-381,-357:16:-165,-141:16:-45,59:16:155,179:16:371,395:16:491,547:16:643,667:16:875,899:16:963].

[0252] In a twenty-third aspect, a method of communication is provided. This method can be executed by a first station or by components of the first station (e.g., a chip, circuit, or chip system). For ease of understanding, the following description assumes execution by the first station.

[0253] The method includes: determining first information for indicating a first resource unit distributed in an 80 MHz bandwidth, the first resource unit comprising 2R subcarriers, wherein the indices of the first R subcarriers of the first resource unit are related to the indices of the first 121 subcarriers of a discrete resource unit comprising 242 subcarriers, or wherein the indices of the last R subcarriers of the first resource unit are related to the indices of the last 121 subcarriers of a discrete resource unit comprising 242 subcarriers:

[0254] Send this first message.

[0255] Where the index is A x B x C x 、D x And index is N y All subcarriers belong to the discrete resource unit comprising 242 subcarriers, x = 1, 2, ..., 26, y = 1, 2, ..., 15, k i l j All are non-negative integers, i = 1, 2, ..., 9, j = 1, 2, ..., 10.

[0256] If R = 53, then the index is A. x and C x All subcarriers belong to the first resource unit, and their index is N.y Of the subcarriers, only one belongs to the first resource element; or,

[0257] If R = 53, then the index is B. x and D x All subcarriers belong to the first resource unit, and their index is N. y There is one and only one subcarrier belonging to the first resource unit;

[0258] If R = 26, then the index is A. x The subcarrier belongs to the first resource unit, or its index is B. x The subcarrier belongs to the first resource unit, or its index is C. x The subcarrier belongs to the first resource unit, or its index is D. x The subcarrier belongs to the first resource unit and its index is N. y The subcarrier does not belong to the first resource unit.

[0259] For example, the first resource unit indicated by the first information is a resource unit allocated by the first site to the second site.

[0260] Based on the above scheme, it is advantageous to construct a first resource unit where the index difference between any two adjacent subcarriers is an integer multiple of 8. This can be equivalent to upsampling a continuous RU in the frequency domain. Since upsampling in the frequency domain does not change the PAPR of the signal, the PAPR of this first resource unit can be equivalent to the PAPR of a continuous RU. Compared with other distributed RUs, using the first resource unit can reduce PAPR and improve communication performance.

[0261] Optionally, if R = 26, then when j = 2, ..., 9, l j It is an even number.

[0262] Based on the above technical solution, when j = 2,…,9, l j If the number is even, it can ensure that the difference between the indices of adjacent subcarriers in the 52-tone DRU is not always an integer multiple of 16, thus avoiding the receiver mistaking the transmission on the first resource unit as an L-STF field when performing delay correlation detection, which could lead to PPDU false detection.

[0263] In a twenty-fourth aspect, a method of communication is provided. This method can be executed by a second station or by components of the second station (e.g., a chip, circuit, or chip system). For ease of understanding, the following description assumes execution by a second station.

[0264] The method includes: receiving first information, the first information indicating a first resource unit distributed in an 80MHz bandwidth, the first resource unit comprising 2R subcarriers, wherein the indices of the first R subcarriers of the first resource unit are related to the indices of the first 121 subcarriers of a discrete resource unit comprising 242 subcarriers, or wherein the indices of the last R subcarriers of the first resource unit are related to the indices of the last 121 subcarriers of a discrete resource unit comprising 242 subcarriers, as follows:

[0265] Data is sent or received according to the first resource unit.

[0266] Where the index is A x B x C x D x And index is N v All subcarriers belong to the discrete resource unit comprising 242 subcarriers, x = 1, 2, ..., 26, y = 1, 2, ..., 15, k i l j All are non-negative integers, i = 1, 2, ..., 9, j = 1, 2, ..., 10.

[0267] If R = 53, then the index is A. x and C x All subcarriers belong to the first resource unit, and their index is N. y Of the subcarriers, only one belongs to the first resource element; or,

[0268] If R = 53, then the index is B. x and D x All subcarriers belong to the first resource unit, and their index is N. y There is one and only one subcarrier belonging to the first resource unit;

[0269] If R = 26, then the index is A. x The subcarrier belongs to the first resource unit, or its index is B. x The subcarrier belongs to the first resource unit, or its index is C. x The subcarrier belongs to the first resource unit, or its index is D. x The subcarrier belongs to the first resource unit and its index is N. y The subcarrier does not belong to the first resource unit.

[0270] Optionally, if R = 26, then when j = 2, ..., 9, l j It is an even number.

[0271] The beneficial effects of aspect 24 can be referred to the description in aspect 23 above, and will not be elaborated here.

[0272] In conjunction with the first aspect, the second aspect, the twenty-third aspect, or the twenty-fourth aspect, in some implementations of the first aspect, the second aspect, the twenty-third aspect, or the twenty-fourth aspect, the first resource element comprises 106 subcarriers, and the index of the subcarriers included in the first resource element is one of the following:

[0273] [-495:56:-47,-487:56:-39,-479:56:-31,-471:56:-23,-463:56:-71,-455:56:-63,-55,17:56:465,25:56:473,33:56:481,41:56:489,49,57:56:449,65:56:457];

[0274] [-491:56:-43,-483:56:-35,-475:56:-27,-467:56:-19,-459:56:-67,-451:56:-59,-51,21:56:469,29:56:477,37:56:485,45:56:493,53,61:56:453,69:56:461];

[0275] [-489:56:-41,-481:56:-33,-473:56:-25,-465:56:-17,-457:56:-65,-449:56:-57,-49,23:56:471,31:56:479,39:56:487,47:56:495,55,63:56:455,71:56:463];

[0276] [-493:56:-45,-485:56:-37,-477:56:-29,-469:56:-21 -461:56:-69,-453:56:-61,-53,19:56:467,27:56:475,35:56:483,43:56:491,51,59:56:451,67:56:459];

[0277] [-494:56:-46,-486:56:-38,-478:56:-30,-470:56:-22,-462:56:-70,-454:56:-62,-54,18:56:466,26:56:474,34:56:482,42:56:490,50,58:56:450,66:56:458];

[0278] [-490:56:-42,-482:56:-34,-474:56:-26,-466:56:-18,-458:56:-66,-450:56:-58,-50,22:56:470,30:56:478,38:56:486,46:56:494,54,62:56:454,70:56:462];

[0279] [-488:56:-40,-480:56:-32,-472:56:-24,-464:56:-16,-456:56:-64,-448:56:-56,-48,24:56:472,32:56:480,40:56:488,48:56:496,56,64:56:456,72:56:464]; or,

[0280] [-492:56:-44,-484:56:-36,-476:56:-28,-468:56:-20,-460:56:-68,-452:56:-60,-52,20:56:468,28:56:476,36:56:484,44:56:492,52,60:56:452,68:56:460].

[0281] In conjunction with the first aspect, the second aspect, the twenty-third aspect, or the twenty-fourth aspect, in some implementations of the first aspect, the second aspect, the twenty-third aspect, or the twenty-fourth aspect, the first resource element comprises 106 subcarriers, and the index of the subcarriers included in the first resource element is one of the following:

[0282] [-495:56:-271,-487:56:-263,-479:56:-255,-471:56:-247,-463,-455:56:-287,-447:56:-279,-239:56:-71,-231:56:-63,-215:56:-47,-207:56:-39,-199:56:-31 ,-191:56:-23,17:56:241,25:56:249,33:56:257,41:56:265,57:56:225,65:56:233,273:56:441,281:56:449,297:56:465,305:56:473,313:56:481,321:56:489,457];

[0283] [-491:56:-267,-483:56:-259,-475:56:-251,-467:56:-243,-459,-451:56:-283,-443:56:-275,-235:56:-67,-227:56:-59,-211:56:-43,-203:56:-35,-195:56:-27,-187:56:-19,21:56:245,29:56:253,37:56:261,45:56:269,61:56:229,69:56:237,277:56:445,285:56:453,301:56:469,309:56:477,317:56:485,325:56:493,461]；

[0284] [-489:56:-265,-481:56:-257,-473:56:-249,-465:56:-241,-457,-449:56:-281,-441:56:-273,-233:56:-65,-225:56:-57,-209:56:-41,-201:56:-33,-193:56:-25,-185:56:-17,23:56:247,31:56:255,39:56:263,47:56:271,63:56:231,71:56:239,279:56:447,287:56:455,303:56:471,311:56:479,319:56:487,327:56:495,463]；

[0285] [-493:56:-269,-485:56:-261,-477:56:-253,-469:56:-245,-461,-453:56:-285,-445:56:-277,-237:56:-69,-229:56:-61,-213:56:-45,-205:56:-37,-197:56:-29,-189:56:-21,19:56:243,27:56:251,35:56:259,43:56:267,59:56:227,67:56:235,275:56:443,283:56:451,299:56:467,307:56:475,315:56:483,323:56:491,459]；

[0286] [-494:56:-270,-486:56:-262,-478:56:-254,-470:56:-246,-462,-454:56:-286,-446:56:-278,-238:56:-70,-230:56:-62,-214:56:-46,-206:56:-38,-198:56:-30 ,-190:56:-22,18:56:242,26:56:250,34:56:258,42:56:266,58:56:226,66:56:234,274:56:442,282:56:450,298:56:466,306:56:474,314:56:482,322:56:490,458];

[0287] [-490:56:-266,-482:56:-258,-474:56:-250,-466:56:-242,-458,-450:56:-282,-442:56:-274,-234:56:-66,-226:56:-58,-210:56:-42,-202:56:-34,-194:56:-26 ,-186:56:-18,22:56:246,30:56:254,38:56:262,46:56:270,62:56:230,70:56:238,278:56:446,286:56:454,302:56:470,310:56:478,318:56:486,326:56:494,462];

[0288] [-488:56:-264,-480:56:-256,-472:56:-248,-464:56:-240,-456,-448:56:-280,-440:56:-272,-232:56:-64,-224:56:-56,-208:56:-40,-200:56:-32,-192:56:-24,- 184:56:-16,24:56:248,32:56:256,40:56:264,48:56:272,64:56:232,72:56:240,280:56:448,288:56:456,304:56:472,312:56:480,320:56:488,328:56:496,464];or,

[0289] [-492:56:-268,-484:56:-260,-476:56:-252,-468:56:-244,-460,-452:56:-284,-444:56:-276,-236:56:-68,-228:56:-60,-212:56:-44,-204:56:-36,-196:56:-28 ,-188:56:-20,20:56:244,28:56:252,36:56:260,44:56:268,60:56:228,68:56:236,276:56:444,284:56:452,300:56:468,308:56:476,316:56:484,324:56:492,460).

[0290] In conjunction with the first aspect, the second aspect, the twenty-third aspect, or the twenty-fourth aspect, in some implementations of the first aspect, the second aspect, the twenty-third aspect, or the twenty-fourth aspect, the first resource element comprises 52 subcarriers, and the index of the subcarriers included in the first resource element is one of the following:

[0291] [-495:56:-47,-479:56:-31,-463:56:-71,17:56:465,33:56:481,57:56:449];

[0292] [-487:56:-39,-471:56:-23,-455:56:-63,25:56:473,41:56:489,65:56:457];

[0293] [-491:56:-43,-475:56:-27,-459:56:-67,21:56:469,37:56:485,61:56:453];

[0294] [-483:56:-35,-467:56:-19,-451:56:-59,29:56:477,45:56:493,69:56:461];

[0295] [-489:56:-41,-473:56:-25,-457:56:-65,23:56:471,39:56:487,63:56:455];

[0296] [-481:56:-33,-465:56:-17,-449:56:-57,31:56:479,47:56:495,71:56:463];

[0297] [-493:56:-45,-477:56:-29,-461:56:-69,19:56:467,35:56:483,59:56:451];

[0298] [-485:56:-37,-469:56:-21,-453:56:-61,27:56:475,43:56:491,67:56:459];

[0299] [-494:56:-46,-478:56:-30,-462:56:-70,18:56:466,34:56:482,58:56:450];

[0300] [-486:56:-38,-470:56:-22,-454:56:-62,26:56:474,42:56:490,66:56:458];

[0301] [-490:56:-42,-474:56:-26,-458:56:-66,22:56:470,38:56:486,62:56:454];

[0302] [-482:56:-34,-466:56:-18,-450:56:-58,30:56:478,46:56:494,70:56:462];

[0303] [-488:56:-40,-472:56:-24,-456:56:-64,24:56:472,40:56:488,64:56:456];

[0304] [-480:56:-32,-464:56:-16,-448:56:-56,32:56:480,48:56:496,72:56:464];

[0305] [-492:56:-44,-476:56:-28,-460:56:-68,20:56:468,36:56:484,60:56:452]; or,

[0306] [-484:56:-36,-468:56:-20,-452:56:-60,28:56:476,44:56:492,68:56:460].

[0307] In conjunction with the first aspect, the second aspect, the twenty-third aspect, or the twenty-fourth aspect, in some implementations of the first aspect, the second aspect, the twenty-third aspect, or the twenty-fourth aspect, the first resource element comprises 52 subcarriers, and the index of the subcarriers included in the first resource element is one of the following:

[0308] [-495:56:-271,-479:56:-255,-455:56:-287,-239:56:-71,-215:56:-47,-199:56:-31,17:56:241,33:56:257,57:56:225,273:56:441,297:56:465,313:56:481];

[0309] [-487:56:-263,-471:56:-247,-447:56:-279,-231:56:-63,-207:56:-39,-191:56:-23,25:56:249,41:56:265,65:56:233,281:56:449,305:56:473,321:56:489];

[0310] [-491:56:-267,-475:56:-251,-451:56:-283,-235:56:-67,-211:56:-43,-195:56:-27,21:56:245,37:56:261,61:56:229,277:56:445,301:56:469,317:56:485];

[0311] [-483:56:-259,-467:56:-243,-443:56:-275,-227:56:-59,-203:56:-35,-187:56:-19,29:56:253,45:56:269,69:56:237,285:56:453,309:56:477,325:56:493];

[0312] [-489:56:-265,-473:56:-249,-449:56:-281,-233:56:-65,-209:56:-41,-193:56:-25,23:56:247,39:56:263,63:56:231,279:56:447,303:56:471,319:56:487];

[0313] [-481:56:-257,-465:56:-241,-441:56:-273,-225:56:-57,-201:56:-33,-185:56:-17,31:56:255,47:56:271,71:56:239,287:56:455,311:56:479,327:56:495]；

[0314] [-493:56:-269,-477:56:-253,-453:56:-285,-237:56:-69,-213:56:-45,-197:56:-29,19:56:243,35:56:259,59:56:227,275:56:443,299:56:467,315:56:483]；

[0315] [-485:56:-261,-469:56:-245,-445:56:-277,-229:56:-61,-205:56:-37,-189:56:-21,27:56:251,43:56:267,67:56:235,283:56:451,307:56:475,323:56:491]；

[0316] [-494:56:-270,-478:56:-254,-454:56:-286,-238:56:-70,-214:56:-46,-198:56:-30,18:56:242,34:56:258,58:56:226,274:56:442,298:56:466,314:56:482]；

[0317] [-486:56:-262,-470:56:-246,-446:56:-278,-230:56:-62,-206:56:-38,-190:56:-22,26:56:250,42:56:266,66:56:234,282:56:450,306:56:474,322:56:490]；

[0318] [-490:56:-266,-474:56:-250,-450:56:-282,-234:56:-66,-210:56:-42,-194:56:-26,22:56:246,38:56:262,62:56:230,278:56:446,302:56:470,318:56:486]；

[0319] [-482:56:-258,-466:56:-242,-442:56:-274,-226:56:-58,-202:56:-34,-186:56:-18,30:56:254,46:56:270,70:56:238,286:56:454,310:56:478,326:56:494];

[0320] [-488:56:-264,-472:56:-248,-448:56:-280,-232:56:-64,-208:56:-40,-192:56:-24,24:56:248,40:56:264,64:56:232,280:56:448,304:56:472,320:56:488];

[0321] [-480:56:-256,-464:56:-240,-440:56:-272,-224:56:-56,-200:56:-32,-184:56:-16,32:56:256,48:56:272,72:56:240,288:56:456,312:56:480,328:56:496];

[0322] [-492:56:-268,-476:56:-252,-452:56:-284,-236:56:-68,-212:56:-44,-196:56:-28,20:56:244,36:56:260,60:56:228,276:56:444,300:56:468,316:56:484]; or,

[0323] [-484:56:-260,-468:56:-244,-444:56:-276,-228:56:-60,-204:56:-36,-188:56:-20,28:56:252,44:56:268,68:56:236,284:56:452,308:56:476,324:56:492].

[0324] In a twenty-fifth aspect, a communication apparatus is provided, the apparatus comprising units or modules for implementing the methods of any one of the first to twenty-fourth aspects or their implementations.

[0325] In a twenty-sixth aspect, a communication apparatus is provided, comprising: a memory for storing a program; and at least one processor for executing the computer program or instructions stored in the memory to perform the method provided in any of the foregoing aspects or their implementations.

[0326] In one implementation, the device is either a first station or a second station.

[0327] In another implementation, the device is a chip, chip system, or circuit for use in a first or second site.

[0328] In a twenty-seventh aspect, a communication apparatus is provided, comprising: at least one processor and a communication interface, the at least one processor being configured to obtain a computer program or instructions stored in a memory via the communication interface to execute the method provided in any of the foregoing aspects or their implementations. The communication interface may be implemented in hardware or software.

[0329] In one implementation, the device also includes a memory.

[0330] In the twenty-eighth aspect, a processor is provided for performing the methods provided in the foregoing aspects.

[0331] Unless otherwise specified, or if it does not contradict its actual function or internal logic in the relevant description, the transmission and acquisition / reception operations involved in the processor can be understood as processor output and reception, input and other operations, or as transmission and reception operations performed by radio frequency circuits and antennas. This application does not limit them in this regard.

[0332] In a twenty-ninth aspect, a computer-readable storage medium is provided that stores program code for execution by a device, the program code including methods for performing any of the foregoing aspects or their implementations.

[0333] In a thirtieth aspect, a computer program product containing instructions is provided, which, when run on a computer, causes the computer to perform the method provided in any of the foregoing aspects or their implementations.

[0334] In a thirty-first aspect, a chip is provided, comprising a processor and a communication interface. The processor reads instructions stored in a memory through the communication interface and executes the method provided in any of the above aspects or their implementations. The communication interface can be implemented in hardware or software.

[0335] In one implementation, the chip also includes a memory that stores computer programs or instructions. The processor is used to execute the computer programs or instructions stored in the memory. When the computer programs or instructions are executed, the processor is used to perform the methods provided by any of the above aspects or their implementations.

[0336] When the method provided in this application is executed by a chip, this application does not limit the specific number of chips implementing the method. For example, it can be executed by one chip, or by two or more chips. Furthermore, when the number of chips implementing the method is two or more, the chip manufacturers are not limited; they can be from the same manufacturer or different manufacturers.

[0337] In a thirty-second aspect, a computer program is provided that, when run on a computer, causes the methods provided by any of the foregoing aspects or their implementations to be executed.

[0338] In a thirty-third aspect, a communication system is provided, including the first station or the second station mentioned above. Attached Figure Description

[0339] Figure 1 is a schematic diagram of a network architecture applicable to an embodiment of this application.

[0340] Figure 2 is a schematic diagram of subcarrier partitioning and RU distribution with an 80MHz bandwidth.

[0341] Figure 3 is a schematic flowchart of a communication method provided in this application.

[0342] Figure 4 shows a schematic diagram of the frame structure of a trigger frame.

[0343] Figure 5 shows a schematic diagram of the frame structure of a PPDU.

[0344] Figures 6 and 7 respectively compare the performance of DRU in Example 1 and Example 2 with that of continuous RU and existing DRU.

[0345] Figure 8 is a schematic diagram of the distribution of normalized delay-related peaks based on the DRU statistics in Example 1.

[0346] Figure 9 is a schematic diagram of the distribution of normalized delay-related peaks based on the DRU statistics in Example 2.

[0347] Figure 10 shows a performance comparison of the DRU in Example 5 with, the continuous RU, and the existing DRU.

[0348] Figure 11 is a schematic diagram of the distribution of normalized delay-related peaks based on the DRU statistics in Example 5.

[0349] Figures 12 and 13 are schematic diagrams of the structure of the communication device provided in the embodiments of this application. Detailed Implementation

[0350] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0351] The technical solutions provided in this application can be applied to WLAN scenarios, such as supporting IEEE 802.11 related standards, including 802.11be, Wi-Fi 7, Extremely High Throughput (EHT), or 802.11bf, as well as 802.11be Next Generation and Wi-Fi 8. They can also be applied to ultra-wideband (UWB) based wireless personal area network (PAN) systems, such as the 802.15 series standards, and to sensing systems, such as the 802.11bf series standards. The 802.11be standard is also known as the Extremely High Throughput (EHT) standard. 802.11bf includes two main categories of standards: low-frequency (e.g., sub7GHz) and high-frequency (e.g., 60GHz). The implementation of sub-7GHz mainly relies on standards such as 802.11ac, 802.11ax, 802.11be, and next-generation standards, while the implementation of 60GHz mainly relies on standards such as 802.11ad, 802.11ay, and next-generation standards. Among them, 802.11ad can also be called the directional multi-gigabit (DMG) standard, and 802.11ay can also be called the enhanced directional multi-gigabit (EDMG) standard.

[0352] Although the embodiments of this application are primarily illustrated using the deployment of WLAN networks, particularly those employing the IEEE 802.11 system standard, those skilled in the art will readily understand that the various aspects involved in the embodiments of this application can be extended to other networks employing various standards or protocols, such as high-performance radio local area networks (HIPERLANs), wireless wide area networks (WWANs), wireless personal area networks (WPANs), or other networks now known or developed in the future. Therefore, regardless of the coverage area and wireless access protocol used, the various aspects provided in the embodiments of this application can be applied to any suitable wireless network.

[0353] The technical solutions of this application embodiment can also be applied to various communication systems, such as: WLAN communication systems, wireless fidelity (Wi-Fi) systems, 5th generation (5G) systems or new radio (NR), Internet of Things (IoT) networks or vehicle-to-everything (V2X) networks, etc.

[0354] The communication systems described above that are applicable to this application are merely illustrative examples, and the communication systems applicable to this application are not limited to these. They will be uniformly described here and will not be repeated below.

[0355] Figure 1 is a schematic diagram of an application scenario applicable to an embodiment of this application. As shown in Figure 1, the communication method provided by this application is applicable to data communication between stations (STAs). A station can be an access point (AP) type station or a non-access point station (non-AP STA), referred to as an AP and a non-AP station, respectively. Specifically, the solution of this application is applicable to data communication between an AP and one or more non-AP stations (e.g., data communication between AP1 and non-AP STA1, non-AP STA2), data communication between APs (e.g., data communication between AP1 and AP2), and data communication between non-AP STAs (e.g., data communication between non-AP STA2 and non-AP STA3).

[0356] Access points are nodes that allow terminals (e.g., mobile phones) to access wired (or wireless) networks. They are mainly deployed in homes, buildings, and campuses, with a typical coverage radius of tens to hundreds of meters. Of course, they can also be deployed outdoors. An access point acts as a bridge connecting wired and wireless networks, its main function being to connect various wireless network clients together and then connect the wireless network to the Ethernet.

[0357] Specifically, the access point can be a terminal or network device with a Wi-Fi chip. This network device can be a server, router, switch, bridge, computer, mobile phone, relay station, vehicle-mounted equipment, wearable device, network equipment in a 5G network, or network equipment in a public land mobile network (PLMN), etc., and this application embodiment is not limited to these. The access point can be a device that supports the Wi-Fi standard. For example, the access point can also support one or more standards in the IEEE 802.11 series, such as 802.11be and 802.11be next generation.

[0358] Non-AP sites can be wireless communication chips, wireless sensors, or wireless communication terminals, and may also be referred to as users, user equipment (UE), access terminals, user units, user stations, mobile stations, mobile stations, remote stations, remote terminals, mobile devices, user terminals, terminals, wireless communication equipment, user agents, or user devices. Non-AP sites can be cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, in-vehicle devices, IoT devices, wearable devices, terminal devices in 5G networks, or terminal devices in PLMNs, etc., and this application embodiment is not limited to these. Non-AP sites can be devices that support WLAN standards. For example, non-AP sites can support one or more standards in the IEEE 802.11 series, such as 802.11be and 802.11be next generation.

[0359] For example, non-AP sites can be mobile phones, tablets, set-top boxes, smart TVs, smart wearable devices, vehicle communication devices, computers, Internet of Things (IoT) nodes, sensors, smart home devices such as smart cameras, smart remote controls, smart water and electricity meters, and sensors in smart cities.

[0360] The aforementioned AP or non-AP sites may include transmitters, receivers, memory, processors, etc., wherein the transmitter and receiver are used for transmitting and receiving packet structures, respectively, the memory is used for storing signaling information and pre-agreed preset values, etc., and the processor is used for parsing signaling information and processing related data, etc.

[0361] Wireless local area networks (WLANs) have evolved through several generations, including 802.11a / b / g, 802.11n, 802.11ac, 802.11ax, 802.11be, and the currently discussed 802.11bn. Regarding bandwidth configuration, the 802.11ax protocol currently supports the following bandwidth configurations: 20MHz, 40MHz, 80MHz, 160MHz, and 80+80MHz. The difference between 160MHz and 80+80MHz is that the former is a continuous frequency band, while the latter's two 80MHz bands can be separated. The 802.11be protocol supports the following bandwidth configurations: 240MHz, 160+80MHz, 320MHz, and 160+160MHz.

[0362] For bandwidths of 20MHz, 40MHz, 80MHz, and 160MHz, the spectrum bandwidth can be divided into multiple types of resource units (RUs). Among them, resource units can be divided into continuous resource units (RUs) and distributed resource units (dRUs).

[0363] The following is a brief introduction to these two types of RUs.

[0364] 1. Continuous RU

[0365] A continuous RU, also known as a traditional RU or conventional RU, refers to an RU consisting of multiple consecutive subcarriers. The term "continuous" refers to the continuity of the subcarriers. Alternatively, a continuous RU can be an RU consisting of at least two consecutive subcarrier groups, where each group comprises multiple consecutive subcarriers, and the subcarriers separating the groups are either guard subcarriers, empty subcarriers, or direct current (DC) subcarriers, or one or more of these.

[0366] Figure 2 is a schematic diagram of the subcarrier tone plan and RU distribution for an 80MHz bandwidth. As shown in Figure 2, the entire bandwidth can be divided into a single 996-tone RU, which is a continuous RU containing 996 subcarriers. Alternatively, the entire bandwidth can be divided into two 484-tone RUs, each of which can include a left half and a right half, namely 484L and 484R, each containing 242 subcarriers. The entire bandwidth can also be divided into four 242-tone RUs, or eight 106-tone RUs, or sixteen 52-tone RUs, or thirty-six 26-tone RUs. Specifically, one 996-tone RU corresponds to two 484-tone RUs, one 484-tone RU corresponds to two 242-tone RUs, one 242-tone RU corresponds to two 106-tone RUs and one 26-tone RU, one 106-tone RU corresponds to two 52-tone RUs, and one 52-tone RU corresponds to two 26-tone RUs. 484L and 484R are alternative schematic diagrams of the 484+5DC architecture.

[0367] It should be understood that in Figure 2, the “1”, “2”, “5DC”, and “23DC” on the left and right sides of the 52-tone RU represent 1 DC subcarrier, 2 DC subcarriers, 5 DC subcarriers, and 23 DC subcarriers, respectively.

[0368] The 802.11be standard has defined the subcarrier ranges in consecutive RUs. For example, the RU numbers and subcarrier ranges for each RU under an 80MHz bandwidth, as shown in Figure 2, are illustrated in Table 1. In the table, RU x represents the RU number x, and [a:b] represents the subcarrier range of that RU from index a to index b, including a and b themselves. It should be understood that the current subcarrier spacing of the WLAN system is 78.125kHz, therefore the 80MHz bandwidth contains a total of 1024 subcarriers with subcarrier index values ​​of -512, ..., 0, ..., 511. Among them, the leftmost 12 (index [-512:-501]) and the rightmost 11 (index [501:511]) are guard subcarriers, and at least 5 in the middle (index [-2:2]) are DC subcarriers. Guard subcarriers and DC subcarriers cannot be used as RUs.

[0369] Table 1

[0370] Similarly, when the bandwidth is 160MHz or 80+80MHz, the entire bandwidth can be viewed as a replication of two 80MHz subcarrier distributions. The entire bandwidth can consist of a single 2*996-tone RU, or various combinations of 26-tone RUs, 52-tone RUs, 106-tone RUs, 242-tone RUs, 484-tone RUs, and 996-tone RUs. At a 160MHz bandwidth, there are a total of 2048 subcarriers with index values ​​of -1024, ..., 0, ..., 1023. Each type of RU will not be described in detail here.

[0371] 2. Distributed RU

[0372] A distributed RU, also known as a discrete RU or other names, is a type of subcarrier unit (RU) that, in contrast to a continuous RU, comprises multiple subcarrier groups, and any two subcarrier groups are discrete in the frequency domain. Specifically, within the subcarrier set comprised of subcarriers in a distributed RU, there exists a subcarrier that is continuous in the frequency domain between two adjacent subcarriers but does not belong to the distributed RU. These "subcarriers not belonging to the RU" are neither guard subcarriers nor DC subcarriers; they can be understood as the subcarriers of the distributed RU being non-contiguous in bandwidth. For example, subcarriers #1, #2, and #3 are three continuous subcarriers in the frequency domain. Subcarriers #1 and #3 are two adjacent subcarriers included in distributed RU #1. Subcarrier #3 does not belong to distributed RU #1. In other words, between the adjacent subcarriers #1 and #3 included in distributed RU #1, there exists a subcarrier #2 that does not belong to distributed RU #1.

[0373] In the embodiments of this application, a discrete RU including K subcarriers can be referred to as a discrete K-tone RU or a K-tone DRU. For example, a 26-tone DRU refers to a discrete RU including 26 subcarriers. The value of K can be referenced to the value of K used in continuous RUs, but of course, the value of K can also be different from the value of K used in continuous RUs, and is not limited. The subcarriers in "K subcarriers" include pilot subcarriers and data subcarriers.

[0374] For example, the set of subcarrier indices for a 242-tone DRU is [-499:4:-19,17:4:497], where [a:c:b] represents an index set that includes subcarriers from subcarrier index a to subcarrier index b with a step size of c, i.e., the set [a,a+c,a+2c,a+3c,....,b]. Furthermore, whether the last index b is available depends on whether ba is an integer multiple of c. If ba is an integer multiple of c, then [a:c:b] includes index b; if ba is not an integer multiple of c, then [a:c:b] does not include index b. When c equals 1, [a:1:b] can usually be simplified to [a:b].

[0375] Because there are subcarriers that do not belong to the RU among the subcarriers of the distributed RU, the bandwidth occupied by the distributed RU is larger than that of the original continuous RU of the same size. Therefore, its uplink transmission power on the resource block can be greater.

[0376] In this context, the transmit power of a device is limited by the bandwidth of its RUs (Radial Units). For consecutive RUs and distributed RUs containing the same number of subcarriers, consecutive RUs occupy less bandwidth, thus resulting in a lower maximum transmit power. In scenarios with limited power spectral density, both transmission rate and distance are significantly restricted. In contrast, distributed RUs improve transmit power by discretely distributing the subcarriers within each RU across the entire or larger bandwidth. For example, in LPI (Limited Portability) scenarios, using distributed RUs can increase the maximum allowable transmit power of the device.

[0377] It should be understood that LPI is a communication scenario defined by WLAN, which imposes strict limitations on the maximum transmit power and maximum power spectral density. For APs, the maximum transmit power is 36 dBm, and the maximum power spectral density is 5 dBm / MHz. For non-AP STAs, the maximum transmit power is 24 dBm, and the maximum power spectral density is -1 dBm / MHz. Table 2 shows the relationship between maximum transmit power and bandwidth in the LPI scenario. The transmit power of a device is limited by both the maximum power and the maximum power spectral density. First, the transmit power cannot exceed the maximum power value; second, the transmit power spectral density cannot exceed the maximum power spectral density. Compared to the maximum power, the limitation on the maximum power spectral density is more stringent, and the maximum transmit power is usually more limited by the power spectral density. As the transmit bandwidth increases, the maximum transmit power of the device also increases accordingly, as shown in Table 2. The specified maximum power limit can only be reached when the bandwidth is the maximum of 320MHz. Below this bandwidth, only lower power can be transmitted due to the limitation of the maximum power spectral density.

[0378] Table 2

[0379] The subcarriers contained in the current distributed RU are distributed across the entire or larger bandwidth. However, the larger the signal bandwidth, the larger its PAPR is usually. When using the RU for data transmission, the average PAPR of the data is too large, which can easily cause nonlinear distortion, reduce power amplifier efficiency, and affect communication performance.

[0380] In view of this, this application proposes a communication method and communication device that makes the subcarriers of the distributed RU more evenly and rationally distributed over the entire or larger bandwidth range, thereby reducing the PAPR of the distributed RU and improving communication performance.

[0381] It should be understood that the embodiments shown below illustrate the method by using the first and second stations as the execution entities for interaction, but this application does not limit the execution entities. Any program capable of running the code of the method provided in the embodiments of this application can communicate according to the method provided in the embodiments of this application. The execution entity of the method provided in the embodiments of this application can be the first and second stations, or a functional module within the first and second stations capable of calling and executing a program. For example, the first station in Figure 3 can also be a chip, chip system, or processor that supports the methods implemented by the first station, or a logic module or software capable of implementing all or part of the functions of the first station; the second station in Figure 3 can also be a chip, chip system, or processor that supports the methods implemented by the terminal device, or a logic module or software capable of implementing all or part of the functions of the second station.

[0382] Figure 3 is a schematic flowchart of a communication method 300 provided in this application. As shown in Figure 3, the method 300 includes the following steps.

[0383] S310, the first station determines the first information, which is used to instruct the first resource unit.

[0384] The resource unit in this application refers to the resource unit defined in the 802.11 series of standards, which consists of a series of subcarriers. The resource unit can be understood as a set of subcarriers.

[0385] In the first resource unit, the difference between the indices of any two adjacent subcarriers is 2. n In other words, the index difference between any two subcarriers in the first resource unit can be expressed as an integer multiple of 2. n In other words, the greatest common divisor of the difference between the indices of any two adjacent subcarriers in the first resource unit is 2. n Where n is a positive integer. The minimum difference between the indices of adjacent subcarriers in the first resource unit is 2. m m is a positive integer, and m is equal to n, or m is not equal to n. In particular, if m = 4, then m is not equal to n. In other words, if the minimum difference between the indices of adjacent subcarriers in the first resource unit is 16, then the differences between the indices of adjacent subcarriers in the first resource unit are not all integer multiples of 16.

[0386] It should be understood that the difference between the indices of adjacent subcarriers in the first resource unit is not always an integer multiple of 16. This can prevent the receiver from mistaking the transmission on the first resource unit as an L-STF field when performing delay correlation detection, thus avoiding PPDU false detection problems.

[0387] For example, when n is 1, the index difference between adjacent subcarriers can be expressed as an integer multiple of 2. Similarly, when n is 2, the index difference between adjacent subcarriers can be expressed as an integer multiple of 4. And when n is 3, the index difference between adjacent subcarriers can be expressed as an integer multiple of 8.

[0388] The subcarrier index can be represented entirely by positive values, entirely by negative values, or by a combination of positive, negative, and zero values.

[0389] In one possible implementation, the first resource unit is distributed in an 80MHz bandwidth and includes 106 subcarriers, i.e., the first resource unit is a 106-tone DRU, then n=3 and m=3.

[0390] In one possible implementation, the first resource unit is distributed in an 80MHz bandwidth and includes 52 subcarriers, i.e., the first resource unit is a 52-tone DRU, then n=3 and m=4.

[0391] In one possible implementation, the first resource unit is distributed in a bandwidth of 160MHz and includes 996 subcarriers, i.e., the first resource unit is a 996-tone DRU, then n=1, m=1.

[0392] In one possible implementation, the first resource unit is distributed in a bandwidth of 160MHz and includes 484 subcarriers, i.e., the first resource unit is a 484-tone DRU, then n=2, m=2.

[0393] In one possible implementation, the first resource unit is distributed in a bandwidth of 160MHz and includes 242 subcarriers, i.e., the first resource unit is a 242-tone DRU, then n=3, m=3.

[0394] In one possible implementation, the first resource unit is distributed in a bandwidth of 160MHz and includes 106 subcarriers, i.e., the first resource unit is a 106-tone DRU, then n=3 and m=4.

[0395] In one possible implementation, the first resource unit can refer to one resource unit or multiple resource units, where each of the multiple resource units can be understood as an example of the first resource unit. Alternatively, the first resource unit can refer to one DRU or multiple DRUs, where each of the multiple DRUs is a DRU provided in the embodiments of this application.

[0396] For example, the first resource unit indicated by the first information is a resource unit allocated by the first site to the second site.

[0397] It should be understood that this application embodiment uses the allocation of a first resource unit from a first site to a second site as an example for illustration. The method of allocating resource units from the first site to one or more other sites can refer to the embodiments of this application. It should be noted that the resource units allocated by the first site to one or more other sites are the same as the first resource units provided in the embodiments of this application.

[0398] S320, the first station sends the first information to the second station, and the second station receives the first information accordingly.

[0399] In this application, the first site can be an access point (AP) or a non-AP STA; similarly, the second site can be an AP or a non-AP STA. A description of the first site can be found in Figure 1, as can a description of the second site; further details are omitted here.

[0400] The first piece of information can be carried in the trigger frame or in the physical protocol data unit (PPDU).

[0401] For example, the first information can be carried in the common information field of the trigger frame shown in Figure 4, including the uplink bandwidth (UL BW) field and the RU allocation field of the user information field corresponding to the second site, which is included in the user information list field. The uplink bandwidth field indicates the bandwidth corresponding to the first resource unit, and the RU allocation field indicates the size and location of the first resource unit. As shown in Figure 4, the trigger frame may include one or more of the following fields: frame control field, duration field, receiver address (RA) field, transmitter address (TA) field, common information field, user information list field, padding field, and frame check sequence (FCS) field. The user information field includes at least one user information field, such as user information field1 and user information field2 shown in Figure 4. Further descriptions of the above fields can be found in the definitions in existing protocols or standards, and will not be detailed here.

[0402] For example, the first information can be carried in the ultra-high throughput signaling field or extremely high throughput signaling (EHT-SIG) included in the PPDU shown in Figure 5. As shown in Figure 5, the PPDU includes a legacy short training field (L-STF), a legacy long training field (L-LTF), a legacy signal field (L-SIG), a repeat legacy-signal field (RL-SIG), a universal signaling field (U-SIG), an EHT-SIG field, an EHT-short training field (EHT-STF), an EHT-long training field (EHT-LTF), a data field, and a package extension field (PE). The EHT-SIG field can include a common field and a user-specific field, which together are used to indicate the first resource unit. The common fields include 1 to N resource unit allocation subfields, a cyclic redundancy code (CRC) for verification, and a tail subfield for cyclic decoding. User-specific fields include the user fields corresponding to the RUs indicated by the resource unit allocation subfields.

[0403] Figure 5 illustrates the fields in a PPDU under the 802.11be scenario. The fields in the PPDU mentioned in this embodiment are not limited to those related to 802.11be. They can also be fields related to standard versions after 802.11be, including but not limited to ultra-high reliability signaling (UHR-SIG) fields in next-generation protocols.

[0404] Based on the above scheme, the first station can indicate a first resource unit to the second station, where the index difference between any two adjacent subcarriers in the first resource unit can be expressed as 2. n The subcarriers are multiples of the first resource unit, thus the distribution of subcarriers in the first resource unit is more uniform, thereby reducing the PAPR of the first resource unit and improving communication performance.

[0405] It should be understood that wireless signals exhibit constantly changing amplitude when observed in the time domain, therefore, the transmit power of a wireless signal is not constant. PAPR refers to the ratio of the peak power to the average power of a signal over a period of time. Since an Orthogonal Frequency Division Multiple Access (OFDM) symbol is composed of multiple independently modulated subcarrier signals superimposed, when the phases of the subcarriers are the same or similar, the superimposed signal will be modulated by the same initial phase signal, resulting in a large instantaneous power peak, which further leads to a high PAPR. Because the dynamic range of a typical power amplifier is limited, multiple-input multiple-output (MIMO) OFDM signals with high PAPR are highly susceptible to entering the nonlinear region of the power amplifier, causing nonlinear distortion, significant spectral spread interference, and in-band signal distortion, resulting in a severe degradation of the overall system performance. When the subcarriers of a resource unit are uniformly distributed, it can be equivalent to upsampling a continuous RU within a smaller bandwidth in the frequency domain. Frequency domain upsampling does not change the PAPR of the signal; therefore, the PAPR of this first resource unit can be equivalent to the PAPR of a continuous RU with a smaller bandwidth. In other words, compared to a continuous RU, the first resource unit is discrete over a larger bandwidth, but its PAPR does not increase, thus improving transmission power without affecting PAPR. Compared to other distributed RUs, its PAPR does not increase, thus reducing PAPR.

[0406] In one possible implementation, the method 300 further includes: S330, the second station sends or receives data according to the first resource unit.

[0407] Specifically, according to the first resource unit, it can be understood as using all subcarriers of the first resource unit to transmit or receive data.

[0408] When the second station sends data based on the first resource unit, the first station can correspondingly receive data based on the first resource unit. For example, the first station is an AP, and the second station is a non-AP STA, meaning method 300 is adapted to an uplink transmission scenario. In this scenario, the first information can be carried in a trigger frame; that is, the AP first allocates the first resource unit to the non-AP STA through the trigger frame, and then the non-AP STA can send a PPDU to the AP based on the first resource unit. In other words, in this scenario, the first information and the data are carried in the trigger frame and the PPDU, respectively.

[0409] When the second station receives data based on the first resource unit, the first station can correspondingly send data based on the first resource unit. For example, the first station is an AP, and the second station is a non-AP STA, meaning method 300 is adapted to downlink transmission scenarios. In this scenario, the first information can be carried in the ultra-high reliability signaling (UHR-SIG) field of the downlink PPDU. That is, the AP allocates the first resource unit to the non-AP STA through the UHR-SIG field in the PPDU, and then the AP can send the payload in the PPDU to the non-AP on the first resource unit. In other words, in this scenario, the first information and the data are carried on the same PPDU.

[0410] Based on the above scheme, the first station and the second station can transmit data in the first resource unit, which can improve communication performance.

[0411] The first resource unit, distributed across different bandwidths, is described below.

[0412] It should be noted that, in the following embodiments, "the first X carriers" refers to the first X subcarriers sorted by subcarrier index from smallest to largest, and "the last X carriers" refers to the last X subcarriers sorted by subcarrier index from smallest to largest.

[0413] In one implementation scenario, the first resource unit is distributed across an 80MHz bandwidth.

[0414] Specifically, with a subcarrier spacing of 78.125kHz, the 80MHz bandwidth contains 1024 subcarriers, whose subcarrier index values ​​can be represented as -512,…,0,…,511. The leftmost 12 (indexed as [-512:-501]) and the rightmost 11 (indexed as [501:511]) are guard subcarriers, meaning they are within the guard interval and cannot be used as RUs. Furthermore, at least 5 subcarriers in the middle (indexed as [-2:2]) are DC subcarriers and also cannot be used as RUs.

[0415] Below are two examples of the first resource unit under an 80MHz bandwidth, namely Example 1 and Example 2.

[0416] Example 1: The first resource unit can be any of the following DRUs.

[0417] For example, the first resource unit consists of 106 subcarriers, which is a 106-tone DRU. The index of the first 53 or last 53 subcarriers included in the first resource unit has the relationship with the index of the subcarriers included in the 242-tone DRU as shown in the following formula (equation, eq.)1.

[0418] In eq.1, the subcarrier indices are arranged in ascending order, and all subcarrier indices shown in eq.1 are indices of the subcarriers included in the 242-tone DRU. The subcarrier indices shown in eq.1 are the indices of the first 60 or last 60 subcarriers included in subcarrier set #2 or subcarrier set #3. Subcarrier set #2 and subcarrier set #3 are obtained by uniformly alternating groups of subcarrier set #1. Subcarrier set #1 is obtained by removing the subcarrier with the largest index and the subcarrier with the smallest index included in the 242-tone DRU.

[0419] Index A i and B i All subcarriers are subcarriers included in the 106-tone DRU, and their indices are N1 to N. a+b+c+d There is one and only one subcarrier included in the 106-tone DRU, i = 1, 2, ..., 26.

[0420] It should be understood that if the subcarrier index shown in eq.1 is the index of the first 60 subcarriers included in subcarrier set #2 or subcarrier set #3, then the index is A. i and B i The subcarriers, and the indices N1 to N a+b+c+d The subcarriers belonging to the 106-tone DRU are the first 53 subcarriers included in the 106-tone DRU. If the subcarrier index shown in eq.1 is the index of the last 60 subcarriers included in subcarrier set #2 or subcarrier set #3, then the index is A. i and B i The subcarriers, and the indices N1 to N a+b+c+d The subcarriers belonging to the 106-tone DRU are the last 53 subcarriers included in the 106-tone DRU.

[0421] For example, the first resource unit consists of 52 subcarriers, which is a 52-tone DRU. The indexes of the first 26 or the last 26 subcarriers included in the first resource unit have the same relationship as the indexes of the subcarriers included in the 242-tone DRU as shown in eq.1 above.

[0422] Where the indices are N1 to N a+b+c+d The subcarrier does not belong to the 52-tone DRU, and its index is A. i Or B i The subcarrier belongs to a 52-tone DRU, i = 1, 2, ..., 26, and its index is A. i The subcarrier and index are B iThe subcarriers belong to different 52-tone DRUs.

[0423] It should be understood that if the subcarrier index shown in eq.1 is the index of the first 60 subcarriers included in subcarrier set #2 or subcarrier set #3, then the index is A. i Or B i The subcarriers are the first 26 subcarriers of the 52-tone DRU. If the subcarrier index shown in eq.1 is the index of the last 60 subcarriers included in subcarrier set #2 or subcarrier set #3, then the index is A. i Or B i The subcarriers are the last 26 subcarriers of the 52-tone DRU.

[0424] It should be noted that k1, k2, a, b, c, and d in eq.1 are all non-negative integers, and a + b + c + d = 8. Optionally, at least one of b and c must be an odd number.

[0425] It should be understood that if at least one of b and c is odd, then the difference between the indices of adjacent subcarriers in a 52-tone DRU is not always a multiple of 16. i and B i Alternating distribution ensures that the greatest common divisor of the differences between the indices of adjacent subcarriers in a 52-tone DRU is 8, thus resulting in a low PAPR during data transmission.

[0426] It should also be understood that when the index of the subcarriers included in the first resource element has the relationship described in eq.1 above, the difference between the indices of any two adjacent subcarriers in the first resource element is 2. n The minimum value of the difference between the indices of adjacent subcarriers in the first resource unit is 2, which is an integer multiple of the indices of the subcarriers. m .

[0427] As one implementation method, the 106-tone DRU and 52-tone DRU in Example 1 can be obtained through the following steps:

[0428] Step 1: Remove the subcarrier closest to the frequency band edge at both ends of the 242 subcarriers included in the 242-tone DRU, resulting in a subcarrier set #1 containing 240 subcarriers. For example, removing the subcarrier closest to the frequency band edge at both ends of 242-tone DRU1 = [-499:4:-19,17:4:497] results in a subcarrier set #1 containing 240 subcarriers, which is [-495:4:-19,17:4:493].

[0429] Step 2: Uniformly sample the 240 subcarriers in subcarrier set #1 at intervals of 2, and divide the 240 subcarriers in subcarrier set #1 into two uniformly distributed subcarrier sampling sets, denoted as subcarrier set #2 and subcarrier set #3. For example, subcarrier set #2 is [-495:8:-15,17:8:489], and subcarrier set #3 is [-491:8:-19,21:4:493].

[0430] Step 3: Sort the 60 subcarriers in the upper half-band (i.e., subcarrier index less than 0) or lower half-band (i.e., subcarrier index greater than 0) of subcarrier set #2 or subcarrier set #3 according to their index size, as shown in eq.1 above.

[0431] It should be noted that the values ​​of k1, k2, a, b, c, and d for the upper and lower half-band frequencies may be equal or unequal, and this application does not impose any limitation on this. For example, for the 60 subcarriers in the upper half-band, when represented according to the structure in eq.1, the corresponding values ​​of k1, k2, a, b, c, and d are 6, 14, 3, 1, 1, and 3, respectively; for the 60 subcarriers in the lower half-band, when represented according to the structure in eq.1, the corresponding values ​​of k1, k2, a, b, c, and d are 8, 12, 3, 1, 1, and 3, respectively.

[0432] It should also be noted that if the index of the upper half frequency band is N1 to N a+b+c+d The index of the subcarrier belonging to the 106-tone DRU in the subcarrier is N. s 1≤s≤8, the index of the lower half-band is N1 to N a+b+c+d The index of the subcarrier belonging to the 106-tone DRU in the subcarrier is N. s’ If 1≤s'≤8, then s=s' or s≠s'.

[0433] For example, if the values ​​of k1, k2, a, b, c, and d corresponding to the upper and lower half-band frequencies are 6, 14, 3, 1, 1, and 3 respectively, s = 4, and s' = 5, then the 106-tone DRU and 52-tone DRU constructed according to subcarrier set #2 = [-495:8:-15, 17:8:489] are respectively 106-tone DRU1, 52-tone DRU1, and 52-tone DRU2 in Table 3 below, and the 106-tone DRU and 52-tone DRU constructed according to subcarrier set #3 = [-491:8:-19, 21:4:493] are respectively 106-tone DRU2, 52-tone DRU3, and 52-tone DRU4 in Table 3 below.

[0434] Similarly, if the values ​​of k1, k2, a, b, c, and d corresponding to the upper and lower half-band frequencies are 6, 14, 3, 1, 1, and 3 respectively, and s = 4 and s' = 5, then according to steps 1 to 3 above, the 106-tone DRU and 52-tone DRU constructed based on 242-tone DRU2 = [-497:4:-17, 19:4:499] are respectively 106-tone DRU3, 106-tone DRU4, and 52-tone DRU5 to 52-tone DRU8 in Table 3 below, and the 106-tone DRU and 52-tone DRU constructed based on 242-tone DRU3 = [-498:4:-18, 18:4:498] are respectively 106-tone DRU5, 106-tone DRU6, and 52-tone DRU9 to 52-tone DRU12 in Table 3 below, based on 242-tone... The 106-tone DRU and 52-tone DRU constructed by DRU4 = [-496:4:-16,20:4:500] are 106-tone DRU7, 106-tone DRU8, and 52-tone DRU13 to 52-tone DRU16 in Table 3 below.

[0435] For example, if the values ​​of k1, k2, a, b, c, and d corresponding to the upper half-band are 13, 0, 3, 0, 1, and 4 respectively, and s = 4, and the values ​​of k1, k2, a, b, c, and d corresponding to the lower half-band are 13, 0, 4, 1, 0, and 3 respectively, and s' = 5, then the 106-tone DRU and 52-tone DRU constructed according to subcarrier set #2 = [-495:8:-15, 17:8:489] are 106-tone DRU2, 52-tone DRU3, and 52-tone DRU4 in Table 4 below, respectively, and the 106-tone DRU and 52-tone DRU constructed according to subcarrier set #3 = [-491:8:-19, 21:4:493] are 106-tone DRU1, 52-tone DRU1, and 52-tone DRU2 in Table 4 below.

[0436] Similarly, if the values ​​of k1, k2, a, b, c, and d corresponding to the upper half-band are 13, 0, 4, 1, 0, and 3 respectively, and s = 4, and the values ​​of k1, k2, a, b, c, and d corresponding to the lower half-band are 13, 0, 3, 0, 1, and 4 respectively, and s' = 5, then according to steps 1 to 3 above, the 106-tone DRU and 52-tone DRU constructed based on 242-tone DRU2 = [-497:4:-17, 19:4:499] are respectively 106-tone DRU3, 106-tone DRU4, and 52-tone DRU5 to 52-tone DRU8 in Table 4 below, and the 106-tone DRU and 52-tone DRU constructed based on 242-tone DRU3 = [-498:4:-18, 18:4:498] are respectively 106-tone DRU5, 106-tone DRU6, and 52-tone DRU8 in Table 4 below. DRU6, 52-tone DRU9 to 52-tone DRU12, and the 106-tone DRU and 52-tone DRU constructed according to 242-tone DRU4 = [-496:4:-16,20:4:500] are respectively 106-tone DRU7, 106-tone DRU8, 52-tone DRU13 to 52-tone DRU16 in Table 4 below.

[0437] It should be noted that if the values ​​of k1, k2, a, b, c and d in eq.1 are different, the subcarrier indices included in the 106-tone DRU and / or 52-tone DRU constructed from the 242-tone DRU will be different. For the sake of brevity, this application will not list them one by one here.

[0438] It should also be noted that the method of constructing 106-tone DRU and / or 52-tone-DRU according to eq.1 above in this application embodiment is only an example. In actual implementation, 106-tone DRU and / or 52-tone-DRU may be constructed in other ways, but the index of the subcarriers included in 106-tone DRU and / or 52-tone-DRU and the index of the subcarriers included in 242-tone DRU satisfy the relationship shown in eq.1 above.

[0439] It should also be noted that steps 1 and 3 above in constructing a 106-tone DRU and / or a 52-tone DRU based on a 242-tone DRU are merely examples, and this application does not limit them. For example, in step 3 above, the structure of the 60 subcarriers in the upper or lower half-band of subcarrier set #2 or subcarrier set #3, sorted by index size, is as follows:

[0440] For example, in step 3 above, the structure of the 60 subcarriers in the upper or lower half-band of subcarrier set #2 or subcarrier set #3, sorted by index size, is as follows:

[0441] Where k1, k2, k3, a, b, c, d, and e are all non-negative integers, and a + b + c + d + e = 8. Optionally, at least one of b, c, and d must be an odd number.

[0442] For example, the first resource unit is one of 52-tone DRU1 to 52-tone DRU16 in Table 3 below, or one of 106-tone DRU1 to 106-tone DRU8 in Table 3 below.

[0443] Table 3

[0444] For example, the first resource unit is one of 52-tone DRU1 to 52-tone DRU16 in Table 4 below, or one of 106-tone DRU1 to 106-tone DRU8 in Table 4 below.

[0445] Table 4

[0446] In this application, [a:c:b] represents a set of subcarrier indices, which includes subcarriers starting from subcarrier index a and ending at subcarrier index b, with a step size of c, i.e., the set is [a, a+c, a+2c, ...]. Furthermore, if ba is an integer multiple of c, then [a:c:b] includes index b; if ba is not an integer multiple of c, then [a:c:b] does not include index b.

[0447] As shown in Tables 3 and 4 above, the index difference between adjacent subcarriers in the aforementioned 106-tone DRU is 8, 16, or 88, which is 2. 3 The minimum value of the difference between the indices of adjacent subcarriers is 2, and the integer multiple of the indices of the subcarriers is 2. 3 The index difference between adjacent subcarriers in the aforementioned 52-tone DRU is 16, 24, or 96, which is equal to 2. 3 The minimum value of the difference between the indices of adjacent subcarriers is 2, which is an integer multiple of the indices of the subcarriers. 4 Integer multiples of.

[0448] Furthermore, the eight 106-tone DRUs in Table 3 or Table 4 have the same structure. For example, 106-tone DRU1 can be obtained by translating any one of 106-tone DRU2 to 106-tone DRU8; 106-tone DRU2 can be obtained by translating any one of 106-tone DRU1, 106-tone DRU3 to 106-tone DRU8. The sixteen 52-tone DRUs in Table 3 or Table 4 have the same structure. For example, 52-tone DRU1 can be obtained by translating any one of 52-tone DRU2 to 52-tone DRU16; 52-tone DRU2 can be obtained by translating any one of 52-tone DRU1, 52-tone DRU3 to 52-tone DRU16.

[0449] In this context, "shifting" refers to the difference between the index of the i-th subcarrier in DRU#1 and the index of the i-th subcarrier in DRU#2 being a set integer. Alternatively, the index of the i-th subcarrier in DRU#1 is k, and the index of the i-th subcarrier in DRU#2 is k+C1, where C1 is the aforementioned set integer.

[0450] Additionally, 52-tone DRU2j-1 and 52-tone DRU2j in Table 3 above are included within 106-tone DRUj, where j = 1, 2, 3, ..., 8. Similarly, 52-tone DRU2j-1 and 52-tone DRU2j in Table 4 above are included within 106-tone DRUj, where j = 1, 2, 3, ..., 8.

[0451] Example 2: The first resource unit can be any of the following DRUs.

[0452] For example, the first resource unit consists of 106 subcarriers, which is a 106-tone DRU. The index of the first 53 or the last 53 subcarriers included in the first resource unit has the following relationship with the index of the subcarriers included in the 242-tone DRU, as shown in eq.4.

[0453] In eq.4, the subcarrier indices are arranged in ascending order, and all subcarrier indices shown in eq.4 are indices of the subcarriers included in the 242-tone DRU. The subcarrier indices shown in eq.4 are the indices of the first 60 or last 60 subcarriers included in subcarrier set #2 or subcarrier set #3. Subcarrier set #2 and subcarrier set #3 are obtained by uniformly alternating groups of subcarrier set #1. Subcarrier set #1 is obtained by removing the subcarrier with the largest index and the subcarrier with the smallest index included in the 242-tone DRU.

[0454] Index is C i All subcarriers are subcarriers included in the 106-tone DRU, and their indices are N1 to N. a+b+c+d+e+f+g+h The subcarriers do not belong to the 106-tone DRU, i = 1, 2, ..., 53.

[0455] It should be understood that if the subcarrier index shown in eq.4 is the index of the first 60 subcarriers included in subcarrier set #2 or subcarrier set #3, then the index is C. i The subcarriers are the first 53 subcarriers of the 106-tone DRU. If the subcarrier index shown in eq.4 is the index of the last 60 subcarriers included in subcarrier set #2 or subcarrier set #3, then the index is C. i The subcarriers are the last 53 subcarriers of the 106-tone DRU.

[0456] It should be noted that k1 to k6 and a to h in eq.4 are all non-negative integers, and a+b+c+d+e+f+g+h=7.

[0457] It should also be understood that when the index of the subcarriers included in the first resource element has the relationship described in eq.4 above with the index of the subcarriers included in the 242-tone DRU, the difference between the indices of any two adjacent subcarriers in the first resource element is 2. n The minimum value of the difference between the indices of adjacent subcarriers in the first resource unit is 2, which is an integer multiple of the indices of the subcarriers. m .

[0458] Based on the 106-tone DRU in Example 2, this application also proposes a 52-tone DRU, wherein the subcarrier indices included in the 52-tone DRU have the same relationship as the subcarrier indices included in the 106-tone DRU in Example 2, as shown in eq.5. [A1,B1,A2,B2,…,A 52 B 52 (eq.5)

[0459] In eq.5, the subcarrier indices are arranged in ascending order, and all subcarrier indices shown in eq.5 are indices of the subcarriers included in the 106-tone DRU of Example 2. The subcarrier indices shown in eq.5 are the indices of the remaining subcarriers after removing two subcarriers from the 106-tone DRU.

[0460] Index A i Or B i The subcarriers belong to 52-tone DRU, i = 1, 2, ..., 52.

[0461] As one implementation, the DRU in Example 2 can be obtained through the following steps:

[0462] Step 1: Remove the subcarrier closest to the frequency band edge at both ends of the 242 subcarriers included in the 242-tone DRU, resulting in a subcarrier set #1 containing 240 subcarriers. For example, removing the subcarrier closest to the frequency band edge at both ends of 242-tone DRU1 = [-499:4:-19,17:4:497] results in a subcarrier set #1 containing 240 subcarriers, which is [-495:4:-19,17:4:493].

[0463] Step 2: Uniformly sample the 240 subcarriers in subcarrier set #1 at intervals of 2, and divide the 240 subcarriers in subcarrier set #1 into two uniformly distributed subcarrier sampling sets, denoted as subcarrier set #2 and subcarrier set #3. For example, subcarrier set #2 is [-495:8:-15,17:8:489], and subcarrier set #3 is [-491:8:-19,21:4:493].

[0464] Step 3: Removing 14 subcarriers from subcarrier set #2 yields one 106-tone DRU #1, and removing 14 subcarriers from subcarrier set #3 yields another 106-tone DRU #2. Considering the symmetry between the upper and lower half-bands, 7 subcarriers are removed from the 60 subcarriers in the lower half-band, and 7 subcarriers in the upper half-band that are symmetrical to the lower half-band are also removed. Optionally, considering that the amplitude period of the signal carried on the DRU cannot be equal to the L-STF, i.e., the difference between the indices of adjacent subcarriers in the DRU cannot all be integer multiples of 16, it is necessary to avoid a situation where the difference between the indices of adjacent subcarriers is an integer multiple of 16 when uniformly splitting the 106-tone DRUs obtained by removing subcarriers from subcarrier sets #2 and #3.

[0465] It is understood that the indices of the first 53 or last 53 subcarriers included in the 106-tone DRU obtained according to steps 1 to 3 have the relationship shown in eq.4 above with the indices of the subcarriers included in the 242-tone DRU. In other words, the structure of the 60 subcarriers in the upper or lower half-band included in subcarrier set #2 or subcarrier set #3 after sorting according to index size is as shown in eq.4 above.

[0466] It should be noted that, considering the symmetry of the upper and lower half-bands, the values ​​of a to h in the lower half-band are equal to the values ​​of h to a in the upper half-band, and the values ​​of k2 to k6 in the lower half-band are equal to the values ​​of k6 to k2 in the upper half-band. The value of k1 in the lower half-band is 53 minus the difference between k1 and k6 in the upper half-band, and the value of k1 in the upper half-band is 53 minus the difference between k1 and k6 in the lower half-band.

[0467] Step 4: Remove two subcarriers from 106-tone DRU #1 to obtain subcarrier set #4. Then, uniformly sample the 104 subcarriers in subcarrier set #4 at intervals of 2 to obtain two 52-tone DRUs. Remove two subcarriers from 106-tone DRU #2 to obtain subcarrier set #5. Then, uniformly sample the 104 subcarriers in subcarrier set #4 at intervals of 2 to obtain two 52-tone DRUs. Considering the symmetry between the upper and lower half-bands, remove one subcarrier from the 60 subcarriers in the lower half-band of the 106-tone DRU, and remove one subcarrier in the upper half-band that is symmetrical to the lower half-band.

[0468] It can be understood that the subcarrier indices of the 52-tone DRU obtained according to steps 1 to 4 have the relationship shown in eq.5 above.

[0469] For example, in step 3, 14 subcarriers in subcarrier sets #2 and #3 are removed according to the following rules: starting from the frequency band edge, one subcarrier is removed from every three subcarriers until 14 subcarriers are removed. In other words, the (3p-2)th and 3qth subcarriers in subcarrier set #2 are removed, where p = 1, 2, 3, 4, 5, 6, 7 and q = 34, 35, 36, 37, 38, 39, 40. For example, if subcarrier set #2 is [-495:8:-15, 17:8:489], then the 106-tone DRU constructed after removing 14 subcarriers from subcarrier set #2 according to the above rules is 106-tone DRU2 in Table 5 below. For example, if the subcarrier set #3 is [-491:8:-19,21:4:493], then the 106-tone DRU constructed after removing subcarrier 14 from the subcarrier set #3 according to the above rules is 106-tone DRU1 in Table 5 below.

[0470] It is understandable that, according to the above rules, after removing 14 subcarriers from subcarrier sets #2 and #3, it is equivalent to k1 to k6 being 2 in the lower half-band, a to g being 1, and h being 0; and k2 to k6 being 2 in the upper half-band, b to h being 1, k1 being 41, and a being 0.

[0471] In step 4, the 13th and 94th subcarriers of 106-tone DRU#1 and 106-tone DRU#2 are removed, respectively. For example, if 106-tone DRU#1 is 106-tone DRU2 in Table 5 below, then the two 52-tone DRUs constructed after removing the 13th and 94th subcarriers from 106-tone DRU#1 are 52-tone DRU3 and 52-tone DRU4 in Table 5 below. For example, if 106-tone DRU#2 is 106-tone DRU1 in Table 5 below, then the two 52-tone DRUs constructed after removing the 13th and 94th subcarriers from 106-tone DRU#2 are 52-tone DRU1 and 52-tone DRU2 in Table 5 below.

[0472] Similarly, following steps 1 to 4 above, the 106-tone DRU and 52-tone DRU constructed based on 242-tone DRU2 = [-497:4:-17,19:4:499] are respectively 106-tone DRU3, 106-tone DRU4, and 52-tone DRU5 to 52-tone DRU8 in Table 5 below; the 106-tone DRU and 52-tone DRU constructed based on 242-tone DRU3 = [-498:4:-18,18:4:498] are respectively 106-tone DRU5, 106-tone DRU6, and 52-tone DRU9 to 52-tone DRU12 in Table 5 below; and the 106-tone DRU and 52-tone DRU constructed based on 242-tone DRU4 = [-496:4:-16,20:4:500] are respectively 106-tone DRU5, 106-tone DRU6, and 52-tone DRU9 to 52-tone DRU12 in Table 5 below. DRU7, 106-tone DRU8, 52-tone DRU13 to 52-tone DRU16.

[0473] For example, in step 3, 14 subcarriers in subcarrier sets #2 and #3 are removed according to the following rules: First, one subcarrier is removed from each of the left and right frequency band edges. Then, starting from the frequency band edge, one subcarrier is removed from every nine subcarriers until 14 subcarriers are removed. In other words, the 1st subcarrier, the (9x+2)th subcarrier, and the 120th subcarrier in subcarrier set #2 are removed, where x = 0, 1, 2, 3, 4, 5, 8, 9, 10, 11, 12, 13. For example, if subcarrier set #2 is [-495:8:-15, 17:8:489], then the 106-tone DRU constructed after removing 14 subcarriers from subcarrier set #2 according to the above rules is the 106-tone DRU2 in Table 6 above. For example, if the subcarrier set #3 is [-491:8:-19,21:4:493], then the 106-tone DRU constructed after removing subcarrier 14 from the subcarrier set #3 according to the above rules is the 106-tone DRU1 in Table 6 above.

[0474] It is understandable that, according to the above rules, after removing 14 subcarriers from subcarrier sets #2 and #3, it is equivalent to k1 to k5 being 8, k6 being 0, a being 2, b to f being 1, g and h being 0 in the lower half-band, and k3 to k6 being 8, a and b being 0, c to g being 1, h being 2, k1 being 13, and k2 being 0 in the upper half-band.

[0475] In step 4, the 51st and 56th subcarriers of 106-tone DRU#1 and 106-tone DRU#2 are removed, respectively. For example, if 106-tone DRU#1 is 106-tone DRU2 in Table 5 below, then the two 52-tone DRUs constructed after removing the 13th and 56th subcarriers from 106-tone DRU#1 are 52-tone DRU3 and 52-tone DRU4 in Table 5 below. For example, if 106-tone DRU#2 is 106-tone DRU1 in Table 5 below, then the two 52-tone DRUs constructed after removing the 13th and 56th subcarriers from 106-tone DRU#2 are 52-tone DRU1 and 52-tone DRU2 in Table 5 below.

[0476] It should also be noted that the methods of constructing a 106-tone DRU according to eq.4 and a 52-tone DRU according to eq.5 in this application are merely examples. In actual implementation, the 106-tone DRU and / or 52-tone DRU may be constructed in other ways, but the subcarrier indices included in the 106-tone DRU and the subcarrier indices included in the 242-tone DRU satisfy the relationship shown in eq.4 above, and the subcarrier indices included in the 52-tone DRU and the subcarrier indices included in the 106-tone DRU satisfy the relationship shown in eq.5 above.

[0477] For example, the first resource unit is one of 52-tone DRU1 to 52-tone DRU16 in Table 5 below, or one of 106-tone DRU1 to 106-tone DRU8 in Table 5 below.

[0478] Table 5

[0479] For example, the first resource unit is one of 52-tone DRU1 to 52-tone DRU16 in Table 6 below, or one of 106-tone DRU1 to 106-tone DRU8 in Table 6 below.

[0480] Table 6

[0481] As shown in Tables 5 and 6 above, the index difference between adjacent subcarriers in the aforementioned 106-tone DRU is 8, 16, or 40, which is 2. 3The minimum value of the difference between the indices of adjacent subcarriers is 2, and the integer multiple of the indices of the subcarriers is 2. 3 The index difference between adjacent subcarriers in the aforementioned 52-tone DRU is 16, 24, or 48, which is equal to 2. 3 The minimum value of the difference between the indices of adjacent subcarriers is an integer multiple of 2. 4 Integer multiples of.

[0482] In addition, the eight 106-tone DRUs in Table 5 or Table 6 have the same structure, and the sixteen 52-tone DRUs have the same structure.

[0483] Additionally, 52-tone DRU2j-1 and 52-tone DRU2j in Table 5 above are included within 106-tone DRUj, where j = 1, 2, 3, ..., 8. Similarly, 52-tone DRU2j-1 and 52-tone DRU2j in Table 6 above are included within 106-tone DRUj, where j = 1, 2, 3, ..., 8.

[0484] The performance of method 300 will be explained below with reference to Figures 6 to 9.

[0485] Figures 6 and 7 compare the performance of data transmission using the DRUs in Examples 1 and 2, the continuous RUs in Table 1, and existing DRUs, respectively. Specifically, 100,000 sets of random binary phase shift keying (BPSK) and quadrature phase shift keying (QPSK) data were randomly generated for each type of DRU in Examples 1 and 2, each type of continuous RU in Table 1, and existing DRUs. The PAPR distribution was then statistically analyzed, and the complementary cumulative distribution function (CCDF) of the different data was compared, resulting in Figures 6 and 7. The complementary cumulative distribution function F(a) is a continuous function representing the sum of probabilities of all values ​​greater than a, i.e., F(a) = P(A>a)).

[0486] Figure 6 is a performance comparison of the DRU in Example 1 with the continuous RU and existing DRU shown in Table 1.

[0487] Figure 6(a) is a comparison of PAPR performance for transmitting random BPSK data using the 106-tone DRU in Example 1, the 106-tone RU in Table 1, and the existing 106-tone DRU.

[0488] Figure 6(b) is a comparison of PAPR performance when transmitting random QPSK data using the 106-tone DRU in Example 1, the 106-tone RU in Table 1, and the existing 106-tone DRU.

[0489] Figure 6(c) is a comparison of PAPR performance when transmitting random BPSK data using the 52-tone DRU in Example 1, the 52-tone RU in Table 1, and the existing 52-tone DRU.

[0490] Figure 6(d) is a comparison of PAPR performance when transmitting random QPSK data using the 52-tone DRU in Example 1, the 52-tone RU in Table 1, and the existing 52-tone DRU.

[0491] As shown in Figure 6, for DRUs of different sizes and different modulation schemes, the DRU in Example 1 of this application has a similar PAPR distribution to a continuous RU of the same size. That is, although the DRU in Example 1 is discrete across a larger bandwidth compared to a continuous RU, its PAPR does not increase. Therefore, compared to a continuous RU, the DRU in this embodiment can improve transmission power without affecting PAPR. Compared to a non-uniformly distributed DRU, the DRU in this embodiment can reduce PAPR. Furthermore, compared to existing DRUs, the DRUs in Example 1 of this application all have a smaller PAPR distribution.

[0492] Figure 7 is a performance comparison of the DRU in Example 2 with the continuous RU and existing DRU shown in Table 1.

[0493] Figure 7(a) is a comparison of PAPR performance for transmitting random BPSK data using the 106-tone DRU in Example 2, the 106-tone RU in Table 1, and the existing 106-tone DRU.

[0494] Figure 7(b) is a comparison of PAPR performance when transmitting random QPSK data using the 106-tone DRU in Example 2, the 106-tone RU in Table 1, and the existing 106-tone DRU.

[0495] Figure 7(c) is a comparison of PAPR performance for transmitting random BPSK data using the 52-tone DRU in Example 2, the 52-tone RU in Table 1, and the existing 52-tone DRU.

[0496] Figure 7(d) is a comparison of PAPR performance when transmitting random QPSK data using the 52-tone DRU in Example 2, the 52-tone RU in Table 1, and the existing 52-tone DRU.

[0497] As shown in Figure 7, for DRUs of different sizes and different modulation schemes, the DRU in Example 2 of this application has a similar PAPR distribution to a continuous RU of the same size. That is, although the DRU in Example 2 is discrete across a larger bandwidth compared to a continuous RU, its PAPR does not increase. Therefore, compared to a continuous RU, the DRU in this embodiment can improve transmission power without affecting PAPR. Compared to a non-uniformly distributed DRU, the DRU in this embodiment can reduce PAPR. Furthermore, compared to existing DRUs, the DRUs in Example 2 of this application all have a smaller PAPR distribution.

[0498] Figures 8 and 9 are schematic diagrams illustrating the distribution of the normalized delay autocorrelation peak. Figure 8 is a schematic diagram of the distribution of the normalized delay autocorrelation peak based on the DRU statistics in Example 1, and Figure 9 is a schematic diagram of the distribution of the normalized delay autocorrelation peak based on the DRU statistics in Example 2. Specifically, the normalized delay under different sub-channels was calculated according to eq.15 and eq.16 below. The peak distribution shows that the peaks related to a delay of 0.8us are mostly much smaller than the usual threshold of 0.5, and will not trigger false detections of PPDU.

[0499] Where, r k For receiving signals, L is the length of the correlation window, and D is the number of sampling points within the period of the STF signal, which is 16 for a 20M bandwidth.

[0500] In another implementation scenario, the first resource unit is distributed across a 160MHz bandwidth.

[0501] Specifically, with a subcarrier spacing of 78.125kHz, the 160MHz bandwidth contains a total of 2048 subcarriers, whose subcarrier index values ​​can be represented as -1024,…,0,…,1023. The leftmost 12 (indexed as [-1024:-1013]) and the rightmost 11 (indexed as [1013:1023]) are guard subcarriers, meaning they are within the guard interval and cannot be used as RUs. Furthermore, at least 23 subcarriers in the middle (indexed as [-11:11]) are DC subcarriers and also cannot be used as RUs.

[0502] Below are two examples of the first resource unit with a bandwidth of 160MHz, namely Example 3 and Example 4.

[0503] Example 3: The first resource unit can be any of the following DRUs.

[0504] For example, the first resource unit consists of 996 subcarriers, which is a 996-tone DRU. The index of the 996 subcarriers included in the first resource unit has the relationship shown in eq.6 with the index of the 2048 subcarriers in a 160MHz bandwidth.

[0505] The subcarrier indices shown in eq.6 are arranged in ascending order. The index is... The subcarrier belongs to 996-tone DRU A, with the index being... The subcarriers belong to 996-tone DRUB B, i = 1, 2, 3, ..., 996. The indices are N2 to... The subcarriers belong to empty subcarriers, with indices D1 to D2. The subcarrier is a DC subcarrier.

[0506] It should be noted that in eq.6, k1+k2+k3=56, and k2 is an even number, while k1 to k3 are all non-negative integers. It should also be noted that since the leftmost 12 and rightmost subcarriers of the 160MHz bandwidth are guard subcarriers and cannot be used as RUs, and at least 23 subcarriers in the middle are DC subcarriers and also cannot be used as RUs, therefore k1≥12, k2≥23, and k3≥11.

[0507] It should also be noted that if the values ​​of k1, k2 and k3 in eq.6 are different, the index of the subcarriers included in the 996-tone DRU constructed from the 2048 subcarriers included in the 160MHz bandwidth will be different. For the sake of brevity, this application will not list them one by one here.

[0508] It should also be noted that the method of constructing a 996-tone DRU according to eq.6 above in this application embodiment is only an example. In actual implementation, the 996-tone-DRU may be constructed in other ways, but the index of the subcarriers included in the 996-tone-DRU and the index of the 2048 subcarriers included in the 160MHz bandwidth satisfy the relationship shown in eq.6 above.

[0509] It should also be understood that when the index of the subcarrier included in the first resource unit has the relationship described in eq.6 above with the index of the 2048 subcarriers included in the 160MHz bandwidth, the difference between the indexes of any two adjacent subcarriers in the first resource unit is an integer multiple of 2, and the minimum difference between the indexes of adjacent subcarriers in the first resource unit is 2.

[0510] It should also be understood that the difference between the indices of adjacent subcarriers in the 996-tone DRU provided in this application is an integer multiple of 2, thereby making the 996-tone DRU have a low PAPR.

[0511] It should also be noted that eq.6 above is merely an example, and this application does not limit the relationship between the index of the 996 subcarriers included in the first resource element and the index of the 2048 subcarriers included in the 160MHz bandwidth. For example, the index of the 996 subcarriers included in the first resource element and the index of the 2048 subcarriers included in the 160MHz bandwidth may have the relationship shown in eq.7 below.

[0512] Where k1+k2+k3+k 1’ +k 3’ =56, and k2 is even, k 1’ and k 3’ It is a non-negative integer.

[0513] For example, the first resource unit consists of 484 subcarriers, which is a 484-tone DRU. The indexes of the 484 subcarriers included in the first resource unit have the same relationship as the indexes of the subcarriers included in the 996-tone DRU, as shown in eq.8.

[0514] The subcarrier indices shown in eq.8 are arranged in ascending order. The index is... The subcarrier belongs to 484-tone DRU A, which is included in the 996-tone DRU, and its index is... The subcarriers belong to the 484-tone DRU B included in the 996-tone DRI, i = 1, 2, 3, ..., 484. The indices are N1 to... The subcarriers are empty subcarriers when constructing a 484-tone DRU; in other words, the subcarriers with indices N1 to N2 are empty subcarriers. The subcarrier does not belong to the 484-tone DRU.

[0515] It should be noted that in eq.8, k4+k5+k6=28, and k5 is an even number, while k4 and k6 are non-negative integers.

[0516] It should also be noted that if the values ​​of k4, k5 and k6 in eq.8 are different, the subcarrier indices included in the 484-tone DRU constructed from the 996-tone DRU will be different. For the sake of brevity, this application will not list them one by one here.

[0517] It should also be noted that the method of constructing a 484-tone DRU according to eq.8 above in this application embodiment is only an example. In actual implementation, the 484-tone-DRU may be constructed in other ways, but the index of the subcarriers included in the 484-tone-DRU and the index of the subcarriers included in the 996-tone DRU satisfy the relationship shown in eq.8 above.

[0518] It should also be noted that eq.8 above is only an example, and this application does not limit the relationship between the index of the 484 subcarriers included in the first resource unit and the index of the 996-tone DRU containing 996 subcarriers.

[0519] It should be understood that when the index of the subcarrier included in the first resource unit has the relationship described in eq.8 above with the index of the subcarrier included in the 996-tone DRU, the difference between the indices of any two adjacent subcarriers in the first resource unit is an integer multiple of 4, and the minimum difference between the indices of adjacent subcarriers in the first resource unit is 4.

[0520] It should also be understood that the difference between the indices of any two adjacent subcarriers in the 484-tone DRU provided in this application is an integer multiple of 4, resulting in a lower PAPR result for the 484-tone DRU. Furthermore, the 484-tone DRU provided in this application is constructed based on a 996-tone DRU, satisfying an inheritance structure where each 996-tone DRU contains two 484-tone DRUs, thereby simplifying the indication method for resource allocation.

[0521] For example, the first resource unit consists of 242 subcarriers, which is a 242-tone DRU. The indexes of the 242 subcarriers included in the first resource unit have the same relationship as the indexes of the subcarriers included in the 484-tone DRU, as shown in eq.9.

[0522] The subcarrier indices shown in eq.9 are arranged in ascending order. The index is... The subcarrier belongs to 242-tone DRU A, which is included in the 484-tone DRU, and its index is... The subcarriers belong to the 242-tone DRU B included in the 484-tone DRU, i = 1, 2, 3, ..., 242.

[0523] It should be understood that when the index of the subcarrier included in the first resource unit has the relationship described in eq.9 above with the index of the subcarrier included in the 484-tone DRU, the difference between the indices of any two adjacent subcarriers in the first resource unit is an integer multiple of 8, and the minimum difference between the indices of adjacent subcarriers in the first resource unit is 8.

[0524] It should also be understood that the difference between the indices of any two adjacent subcarriers in the 242-tone DRU provided in this application is an integer multiple of 8, resulting in a lower PAPR (Packet Reduction Proportion) for the 242-tone DRU. Furthermore, the 242-tone DRU provided in this application is constructed based on a 484-tone DRU, satisfying an inheritance structure where each 484-tone DRU contains two 242-tone DRUs, thereby simplifying the indication method for resource allocation.

[0525] For example, the first resource unit consists of 106 subcarriers, which is a 106-tone DRU. The indexes of the 106 subcarriers included in the first resource unit have the same relationship as the indexes of the subcarriers included in the 242-tone DRU, as shown in eq.10 below.

[0526] The subcarrier indices shown in eq.10 are arranged in ascending order. The index is... The subcarrier is the i-th subcarrier on the j-th frequency segment of the 106-tone DRU A included in the 242-tone DRU, with the index being... The subcarrier is the i-th subcarrier on the j-th frequency segment of the 106-tone DRU B included in the 242-tone DRU. The index is... The subcarrier is the i-th empty subcarrier on the j-th frequency segment when constructing a 106-tone DRU. Where j = 1, 2, ..., 11, when j = 1, i = 1, 2, 3, ..., l1; when j = 2, i = 1, 2, 3, ..., l2; when j = 3, i = 1, 2, 3, ..., l3; when j = 4, i = 1, 2, 3, ..., l4; when j = 5, i = 1, 2, 3, ..., l5; when j = 6, i = 1, 2, 3, ..., l6; when j = 7, i = 1, 2, 3, ..., l7; when j = 8, i = 1, 2, 3, ..., l8; when j = 9, i = 1, 2, 3, ..., l9; when j = 10, i = 1, 2, 3, ..., l 10 .

[0527] It should be noted that in eq.10, k7+k8+…+k 17 =30, k7 to k 17The integers are non-negative, and k8, k9, k 10 k 11 k 13 k 14 k 15 and k 16 At least one of them is odd, k 12 The number is even. l1 + l2 + ... + l 10 =106, l1 to l 10 It is a non-negative integer.

[0528] It should also be noted that if k7 to k in eq.10 17 l1 to l 10 The subcarrier indices included in the 106-tone DRU constructed from the 242-tone DRU will be different depending on the value of , and for the sake of brevity, they will not be listed here.

[0529] It should also be noted that the method of constructing a 106-tone DRU according to eq.10 above in this application embodiment is only an example. In actual implementation, the 106-tone-DRU may be constructed in other ways, but the index of the subcarriers included in the 106-tone-DRU and the index of the subcarriers included in the 242-tone DRU satisfy the relationship shown in eq.10 above.

[0530] It should also be noted that eq.10 above is only an example, and this application does not limit the relationship between the index of the 106 subcarriers included in the first resource unit and the index of the 242-tone DRU containing 242 subcarriers.

[0531] It should be understood that when the index of the subcarrier included in the first resource unit has the relationship described in eq.10 above with the index of the subcarrier included in the 242-tone DRU, the difference between the indices of any two adjacent subcarriers in the first resource unit is an integer multiple of 8, and the minimum difference between the indices of adjacent subcarriers in the first resource unit is 16.

[0532] It should also be understood that the difference between the indices of any two adjacent subcarriers in the 106-tone DRU provided in this application is an integer multiple of 8, resulting in a lower PAPR result for the 106-tone DRU. Furthermore, the 106-tone DRU provided in this application is constructed based on a 242-tone DRU, satisfying an inheritance structure where each 242-tone DRU contains two 106-tone DRUs, thereby simplifying the indication method for resource allocation.

[0533] It should also be understood that the subcarriers included in the 106-tone DRU constructed based on the 242-tone DRU of this application are distributed across different frequency segments. This is beneficial because it ensures that the differences between the indices of adjacent subcarriers distributed within each 20MHz bandwidth of the 160MHz bandwidth included in the 106-tone DRU are not all integer multiples of 16. For example, if the index in eq.10 is... and The subcarriers are distributed on the second 20MHz bandwidth within the 160MHz bandwidth, and k8 is an odd number. and The difference between them is not an integer multiple of 16. In other words, the difference between the indices of adjacent subcarriers distributed in the second 20MHz bandwidth within the 160MHz bandwidth of the 106-tone DRU is not an integer multiple of 16.

[0534] For example, if the values ​​of k1 to k3 in eq.6 are as shown in Table 7 below, then the 996-tone DRU provided in Example 3 is 996-tone DRU1 and / or 996-tone DRU2 in Table 9 below. If the values ​​of k4 to k6 in eq.8 are as shown in Table 7 below, then the 484-tone DRU provided in Example 3 is one or more of 484-tone DRU1 to 484-tone DRU4 in Table 9 below, and the 242-tone DRU constructed based on the 484-tone DRU provided in Example 3 is one or more of 242-tone DRU1 to 242-tone DRU8 in Table 9 below. If the values ​​of k7 to k6 in eq.10 are... 17 The values ​​of l1 to l2 are shown in Table 7 below. 10 The values ​​are shown in Table 8 below. The 106-tone DRU provided in Example 3 is one or more of 106-tone DRU1 to 106-tone DRU16 in Table 9 below.

[0535] Table 7

[0536] Table 8

[0537] Table 9

[0538] Example 4: The first resource unit can be any of the following DRUs.

[0539] For example, the first resource unit consists of 996 subcarriers, which is a 996-tone DRU. The index of the 996 subcarriers included in the first resource unit has the relationship shown in eq.11 with the index of the 2048 subcarriers in a 160MHz bandwidth.

[0540] In this example, the subcarrier indices shown in eq.11 are arranged in ascending order. The subcarrier indices shown in eq.11 are the indices of the 1024 subcarriers included in subcarrier set #6 or subcarrier set #7. Subcarrier set #6 and subcarrier set #7 are obtained by uniformly alternating groups of the 2048 subcarriers contained in a 160MHz bandwidth. The index is... The subcarriers belong to a 996-tone DRU, i = 1, 2, 3, ..., 996. The indices are N1 to... The subcarriers belong to empty subcarriers, with indices D1 to D2. The subcarrier is a DC subcarrier.

[0541] It should be noted that k in eq.11 1’ +k 2’ +k 3’ +k 4’ +k 5’ =28,k 1’ To k 3’ All are non-negative integers.

[0542] For example, if the subcarrier set #6 is [-1024:2:1022], then k 1’ =6,k 2’ =3,k 3’ =11,k 4’ =3,k 4’ =5, the 996-tone DRU constructed based on subcarrier set #6 is 996-tone DRU1 in Table 8 below. If subcarrier set #7 is [-1023:2:1023], then k 1’ =6,k 2’ =2,k 3’ =12,k 4’ =2,k 4’ =6, the 996-tone DRU constructed based on subcarrier set #7 is 996-tone DRU2 in Table 8 below.

[0543] As one implementation method, the 996-DRU in Example 4 can be obtained through the following steps:

[0544] Step 1: Uniformly sample the 1024 subcarriers contained in the 160MHz bandwidth at intervals of 2, thereby dividing the 1024 subcarriers into two uniformly distributed subcarrier sampling sets, denoted as subcarrier set #6 and subcarrier set #7. Subcarrier set #6 is [-1024:2:1022] and subcarrier set #7 is [-1023:2:1023].

[0545] Step 2: Remove the subcarriers in subcarrier set #6 and subcarrier set #7 that are near the guard interval and near the DC subcarrier (including the DC subcarrier with a bandwidth of 160MHz and each 80MHz DC subcarrier included in the 160MHz bandwidth), respectively, to obtain 996-tone DRU1 and 996-tone DRU2 as shown in Table 8 below.

[0546] It should be understood that the difference between the indices of adjacent subcarriers in the 996-tone DRU provided in this application is an integer multiple of 2, thereby making the 996-tone DRU have a low PAPR.

[0547] For example, the first resource unit consists of 484 subcarriers, which is a 484-tone DRU. The indexes of the 484 subcarriers included in the first resource unit have the same relationship as the indexes of the subcarriers included in the 996-tone DRU, as shown in eq.12 below.

[0548] The subcarrier indices shown in eq.12 are arranged in ascending order. The index is... The subcarrier is the i-th subcarrier on the j-th frequency segment of the 484-tone DRU A included in the 996-tone DRU, with the index being... The subcarrier is the i-th subcarrier on the j-th frequency segment of the 484-tone DRU B included in the 996-tone DRU. The index is... The subcarrier is the i-th empty subcarrier on the j-th frequency segment when constructing a 484-tone DRU. Where j = 1, 2, ..., 5, when j = 1, i = 1, 2, 3, ..., l1, when j = 2, i = 1, 2, 3, ..., l2, when j = 3, i = 1, 2, 3, ..., l3, and when j = 4, i = 1, 2, 3, ..., l4.

[0549] It should be noted that in eq.12, k1+k2+k3+k4+k5=28, l1+l 2+l 3+l 4=484, and k1 to k5 and l1 to l 4 are all non-negative integers.

[0550] It should also be noted that if the values ​​of k1 to k5 and l1 to l4 in eq.12 are different, the subcarrier indices included in the 484-tone DRU constructed from the 996-tone DRU will be different. For the sake of brevity, this application will not list them one by one here.

[0551] It should also be noted that the method of constructing a 484-tone DRU according to eq.12 above in this application embodiment is only an example. In actual implementation, the 484-tone-DRU may be constructed in other ways, but the index of the subcarriers included in the 484-tone-DRU and the index of the subcarriers included in the 996-tone DRU satisfy the relationship shown in eq.12 above.

[0552] It should also be noted that eq.12 above is only an example, and this application does not limit the relationship between the index of the 484 subcarriers included in the first resource unit and the index of the 996-tone DRU containing 996 subcarriers.

[0553] It should be understood that when the index of the subcarrier included in the first resource unit has the relationship described in eq.12 above with the index of the subcarrier included in the 996-tone DRU, the difference between the indices of any two adjacent subcarriers in the first resource unit is an integer multiple of 4, and the minimum difference between the indices of adjacent subcarriers in the first resource unit is 4.

[0554] It should also be understood that the difference between the indices of any two adjacent subcarriers in the 484-tone DRU provided in this application is an integer multiple of 4, resulting in a lower PAPR result for the 484-tone DRU. Furthermore, the 484-tone DRU provided in this application is constructed based on a 996-tone DRU, satisfying an inheritance structure where each 996-tone DRU contains two 484-tone DRUs, thereby simplifying the indication method for resource allocation.

[0555] For example, the first resource unit consists of 242 subcarriers, which is a 242-tone DRU. The indexes of the 242 subcarriers included in the first resource unit have the same relationship as the indexes of the subcarriers included in the 484-tone DRU, as shown in eq.13.

[0556] The subcarrier indices shown in eq.13 are arranged in ascending order. The index is... The subcarrier belongs to 242-tone DRU A, which is included in the 484-tone DRU, and its index is... The subcarriers belong to the 242-tone DRU B included in the 484-tone DRU, i = 1, 2, 3, ..., 242.

[0557] It should be understood that when the index of the subcarrier included in the first resource unit has the relationship described in eq.13 above with the index of the subcarrier included in the 484-tone DRU, the difference between the indices of any two adjacent subcarriers in the first resource unit is an integer multiple of 8, and the minimum difference between the indices of adjacent subcarriers in the first resource unit is 8.

[0558] It should also be understood that the difference between the indices of any two adjacent subcarriers in the 242-tone DRU provided in this application is an integer multiple of 8, resulting in a lower PAPR (Packet Reduction Proportion) for the 242-tone DRU. Furthermore, the 242-tone DRU provided in this application is constructed based on a 484-tone DRU, satisfying an inheritance structure where each 484-tone DRU contains two 242-tone DRUs, thereby simplifying the indication method for resource allocation.

[0559] For example, the first resource unit consists of 106 subcarriers, which is a 106-tone DRU. The indexes of the 106 subcarriers included in the first resource unit have the same relationship as the indexes of the subcarriers included in the 242-tone DRU, as shown in eq.14.

[0560] The subcarrier indices shown in eq.14 are arranged in ascending order. The index is... The subcarrier is the i-th subcarrier on the j-th frequency segment of the 106-tone DRU A included in the 242-tone DRU, with the index being... The subcarrier is the i-th subcarrier on the j-th frequency segment of the 106-tone DRU B included in the 242-tone DRU. The index is... The subcarrier is the i-th empty subcarrier on the j-th frequency segment when constructing a 106-tone DRU. Where j = 1, 2, ..., 13, when j = 1, i = 1, 2, 3, ..., l5; when j = 2, i = 1, 2, 3, ..., l6; when j = 3, i = 1, 2, 3, ..., l7; when j = 4, i = 1, 2, 3, ..., l8; when j = 5, i = 1, 2, 3, ..., l9; when j = 6, i = 1, 2, 3, ..., l 10 When j = 7, i = 1, 2, 3, ..., l 11 When j = 8, i = 1, 2, 3, ..., l 12 When j = 9, i = 1, 2, 3, ..., l 13 When j = 10, i = 1, 2, 3, ..., l 14 When j = 11, i = 1, 2, 3, ..., l 15When j = 12, i = 1, 2, 3, ..., l 16 .

[0561] It should be noted that in eq.14, k6+k7+…+k 18 =30, k6 to k 18 The integers are non-negative, and k7, k8, k9, k 10 k 11 k 13 k 14 k 15 k 16 and k 17 At least one of them is odd, k 12 It is an even number. l5 + l6 + ... + l 16 =106, l5 to l 16 It is a non-negative integer.

[0562] It should also be noted that if k6 to k in eq.14 18 l5 to l 16 The subcarrier indices included in the 106-tone DRU constructed from the 242-tone DRU will be different depending on the value of , and for the sake of brevity, they will not be listed here.

[0563] It should also be noted that the method of constructing a 106-tone DRU according to eq.14 above in this application embodiment is only an example. In actual implementation, the 106-tone-DRU may be constructed in other ways, but the index of the subcarriers included in the 106-tone-DRU and the index of the subcarriers included in the 242-tone DRU satisfy the relationship shown in eq.14 above.

[0564] It should also be noted that eq.14 above is only an example, and this application does not limit the relationship between the index of the 106 subcarriers included in the first resource unit and the index of the 242-tone DRU containing 242 subcarriers.

[0565] It should be understood that when the index of the subcarrier included in the first resource unit has the relationship shown in eq.14 above, the difference between the indices of any two adjacent subcarriers in the first resource unit is an integer multiple of 8, and the minimum difference between the indices of adjacent subcarriers in the first resource unit is 16.

[0566] It should also be understood that the difference between the indices of any two adjacent subcarriers in the 106-tone DRU provided in this application is an integer multiple of 8, resulting in a lower PAPR result for the 106-tone DRU. Furthermore, the 106-tone DRU provided in this application is constructed based on a 242-tone DRU, satisfying an inheritance structure where each 242-tone DRU contains two 106-tone DRUs, thereby simplifying the indication method for resource allocation.

[0567] It should also be understood that the subcarriers included in the 106-tone DRU constructed based on the 242-tone DRU of this application are distributed across different frequency segments. This is beneficial because it ensures that the differences between the indices of adjacent subcarriers distributed within each 20MHz bandwidth of the 106-tone DRU within a 160MHz bandwidth are not all integer multiples of 16. For example, if the index in eq.14 is... and The subcarriers are distributed on the second 20MHz bandwidth within the 160MHz bandwidth, and k7 is an odd number. and The difference between them is not an integer multiple of 16. In other words, the difference between the indices of adjacent subcarriers distributed in the second 20MHz bandwidth within the 160MHz bandwidth of the 106-tone DRU is not an integer multiple of 16.

[0568] For example, if the 996-tone DRU in Example 4 is 996-tone DRU1 in Table 12 below, the values ​​of k1 to k5 in eq.12 are the first values ​​of k1 to k5 in Table 10 below, and the values ​​of l1 to l4 are as shown in Table 11 below, then the 484-tone DRU constructed based on 996-tone DRU1 is 484-tone DRU1 and / or 484-tone DRU2 in Table 12 below. If the 996-tone DRU in Example 4 is 996-tone DRU2 in Table 12 below, the values ​​of k1 to k5 in eq.12 are the second values ​​of k1 to k5 in Table 10 below, and the values ​​of l1 to l4 are as shown in Table 11 below, then the 484-tone DRU constructed based on 996-tone DRU2 is 484-tone DRU3 and / or 484-tone DRU4 in Table 12 below. Furthermore, the 242-tone DRU constructed based on the 484-tone DRU provided in Example 4 is one or more of the 242-tone DRU1 to 242-tone DRU8 listed in Table 12 below. If k6 to k in eq. 14... 18 The values ​​are shown in Table 10 below, from l5 to l 16The values ​​are shown in Table 11 below. The 106-tone DRU provided in Example 4 is one or more of 106-tone DRU1 to 106-tone DRU16 in Table 12 below.

[0569] Table 10

[0570] Table 11

[0571] Table 12

[0572] As shown in Tables 9 and 12 above, the index difference between adjacent subcarriers in the 996-tone DRU is 2 or 30, which is an integer multiple of 2, and the minimum value of the index difference between adjacent subcarriers is 2. The index difference between adjacent subcarriers in the 484-tone DRU is 4 or 60, which is 2... 2 The minimum value of the difference between the indices of adjacent subcarriers is 2, and the integer multiple of the indices of the subcarriers is 2. 2 In the aforementioned 242-tone DRU, the index difference between adjacent subcarriers is 8 or 64, which is 2. 3 The minimum value of the difference between the indices of adjacent subcarriers is 2, and the integer multiple of the indices of the subcarriers is 2. 3 In the aforementioned 106-tone DRU, the index difference between adjacent subcarriers is 16, 24, or 152, which is 2. 3 The minimum value of the difference between the indices of adjacent subcarriers is 2, and the integer multiple of the indices of the subcarriers is 2. 4 .

[0573] Furthermore, the two 996-tone DRUs, four 484-tone DRUs, eight 242-tone DRUs, and sixteen 106-tone DRUs in Table 9 or Table 12 have the same structure. Based on this, the implementation complexity can be simplified and the design of the channel estimation sequence can be made more convenient.

[0574] Furthermore, the aforementioned 484-tone DRU1 and 484-tone DRU2 are contained within 996-tone DRU1, 484-tone DRU3 and 484-tone DRU4 are contained within 996-tone DRU2, 242-tone DRU 2j-1 and 242-tone DRU 2j are contained within 484-tone DRU j, where j = 1, 2, 3, 4. 106-tone DRU2j-1 and 106-tone DRU2j are contained within 242-tone DRUj, where j = 1, 2, 3, ..., 8. Based on this, the method of indicating resource allocation can be simplified.

[0575] In another implementation scenario, the first resource unit is distributed across an 80MHz bandwidth.

[0576] Specifically, with a subcarrier spacing of 78.125kHz, the 80MHz bandwidth contains 1024 subcarriers, whose subcarrier index values ​​can be represented as -512,…,0,…,511. The leftmost 12 (indexed as [-512:-501]) and the rightmost 11 (indexed as [501:511]) are guard subcarriers, meaning they are within the guard interval and cannot be used as RUs. Furthermore, at least 5 subcarriers in the middle (indexed as [-2:2]) are DC subcarriers and also cannot be used as RUs.

[0577] The following is an example of the first resource unit with a bandwidth of 80MHz, namely Example 5.

[0578] Example 5: The first resource unit can be any of the following DRUs.

[0579] For example, the first resource unit consists of 106 subcarriers, which is a 106-tone DRU. The indices of the first 53 subcarriers included in the first resource unit have the same relationship as the indices of the first 121 subcarriers included in the 242-tone DRU, as shown in eq.17 below; or, the indices of the last 53 subcarriers included in the first resource unit have the same relationship as the indices of the last 121 subcarriers included in the 242-tone DRU, as shown in eq.17 below.

[0580] In eq.17, the subcarrier indices are arranged in ascending order, and all subcarrier indices shown in eq.17 are indices of the subcarriers included in the 242-tone DRU. The subcarrier indices shown in eq.17 are indices of the first 121 subcarriers or the last 121 subcarriers included in the 242-tone DRU.

[0581] Index A x and C x All subcarriers are subcarriers included in the 106-tone DRU, and their index is N. y There is one and only one subcarrier included in the 106-tone DRU, x = 1, 2, ..., 26, y = 1, 2, ..., 15. Alternatively, the index is B. x and D x All subcarriers are subcarriers included in the 106-tone DRU, and their index is N. y Of the subcarriers, there is exactly one subcarrier included in the 106-tone DRU. The index is A. x and B x The subcarrier and index are Cx and D x The subcarriers belong to different 106-tone DRUs. For example, the subcarrier indexed as A x and C x The subcarrier belongs to a 106-tone DRU, denoted as 106-tone DRU#A, and its index is B. x and D x If the 106-tone DRU to which the subcarrier belongs is denoted as 106-tone DRU#B, then 106-tone DRU#A is different from 106-tone DRU#B.

[0582] It should be noted that 106-tone DRU#A and 106-tone DRU#B respectively include index N y Different subcarriers within the subcarriers. It should also be noted that 106-tone DRU#A includes index N. y The subcarrier and index are A x The subcarriers are not adjacent in the subcarriers included in the 242-tone DRU. It should also be noted that the 106-tone DRU#B includes index N. y The subcarrier and index are D x The subcarriers are not adjacent in the subcarriers included in the 242-tone DRU.

[0583] It is understandable that the index is N. y The subcarriers may include those with index A x and C x Subcarriers belonging to the same 106-tone DRU can also include subcarriers with index B. x and D x The subcarriers belong to the same 106-tone DRU, which is equivalent to index N. y Two of the subcarriers are not empty subcarriers when constructing a 106-tone DRU.

[0584] For example, the first resource unit consists of 52 subcarriers, which is a 52-tone DRU. The indices of the first 26 subcarriers included in the first resource unit have the same relationship as the indices of the first 121 subcarriers included in the 242-tone DRU, as shown in eq.17 above. Alternatively, the indices of the last 26 subcarriers included in the first resource unit have the same relationship as the indices of the last 121 subcarriers included in the 242-tone DRU, as shown in eq.17 above.

[0585] Where the index is N y The subcarrier does not belong to the 52-tone DRU, and its index is A.x The subcarrier belongs to a 52-tone DRU, or, if the index is B... x The subcarrier belongs to a 52-tone DRU, or, indexed as C. x The subcarrier belongs to a 52-tone DRU, or, indexed as D x The subcarriers belong to a 52-tone DRU, x = 1, 2, ..., 26. It should be noted that the index is A. x B x C x Or D x The subcarriers belong to different 52-tone DRUs. For example, index A x The 52-tone DRU to which the subcarrier belongs is denoted as 52-tone DRU#A, and its index is B. x The 52-tone DRU to which the subcarrier belongs is denoted as 52-tone DRU#B, and its index is C. x The 52-tone DRU to which the subcarrier belongs is denoted as 52-tone DRU#C, and its index is D. x If the 52-tone DRU to which the subcarrier belongs is denoted as 52-tone DRU#D, then any two of 52-tone DRU#A, 52-tone DRU#B, 52-tone DRU#C and 52-tone DRU#D are different.

[0586] It should be noted that k in eq.17 i l j All are non-negative integers, i = 1, 2, ..., 9, j = 1, 2, ..., 10.

[0587] Optional, when j = 2, ..., 9, l j It is an even number.

[0588] It should be understood that when j = 2, ..., 9, l j If the number is even, then the difference between the indices of adjacent subcarriers in a 52-tone DRU is not always a multiple of 16. x B x C x Or D x Alternating distribution can ensure that the greatest common divisor of the differences between the indices of adjacent subcarriers in a 52-tone DRU or a 106-tone DRU is 8, thereby resulting in a low PAPR during data transmission.

[0589] It should also be understood that when the index of the subcarriers included in the first resource element has the relationship described in eq. 17 above with the index of the subcarriers included in the 242-tone DRU, the difference between the indices of any two adjacent subcarriers in the first resource element is 2. n The minimum value of the difference between the indices of adjacent subcarriers in the first resource unit is 2, which is an integer multiple of the indices of the subcarriers. m .

[0590] It should be noted that the upper and lower half-band frequencies correspond to k, respectively. i or l j The values ​​may be equal or unequal; this application does not limit this. For example, for the 121 subcarriers in the lower half-band, when represented according to the structure in eq.17, l1 = 1, l 10 =0, when j = 2, 3, ..., 9, l j =2, when i = 1, 2, ..., 8, k i =3, k9=2; For the 121 subcarriers in the upper half-band, when represented according to the structure in eq.17, l1=0, l 10 =1, when j = 2, 3, ..., 9, l j =2, when i = 2, 3, ..., 9, k i =3, k1=2.

[0591] It should also be noted that if the index of the upper half frequency band is N y The subcarrier index is N s and N t The subcarriers are not empty subcarriers when constructing a 106-tone DRU, 1≤s≤15, 1≤t≤15, and the index of the lower half-band is N. y The subcarrier index is N s’ and N t’ The subcarriers are not empty subcarriers when constructing a 106-tone DRU, 1≤s'≤15, 1≤t'≤15, then s≠t, s'≠t'. This application does not limit the relationship between s and s', i.e., s=s' or s≠s'. This application does not limit the relationship between t and t', i.e., t=t' or t≠t'.

[0592] For example, for the 121 subcarriers in the lower half-band, l1 = 1, l 10 =0, when j = 2, 3, ..., 9, l j =2; when i = 1, 2, ..., 8, k i =3, k9=2; s'=14, t'=15, for the 121 subcarriers in the upper half-band, l1=0, l 10 =1, when j = 2, 3, ..., 9, l j=2; when i = 2, 3, ..., 9, k i =3, k1=2; s=1, t=2, then the 106-tone DRU and 52-tone DRU constructed according to 242-tone DRU1=[-499:4:-19,17:4:497] are respectively 106-tone DRU1, 106-tone DRU2, and 52-tone DRU1 to 52-tone DRU4 in Table 13 below. The 106-tone DRU and 52-tone DRU constructed according to 242-tone DRU2=[-497:4:-17,19:4:499] are respectively 106-tone DRU3, 106-tone DRU4, and 52-tone DRU5 to 52-tone DRU8 in Table 13 below. The 106-tone DRU and 52-tone DRU constructed according to 242-tone DRU3=[-498:4:-18,18:4:498] are respectively 106-tone DRU3, 106-tone DRU4, and 52-tone DRU5 to 52-tone DRU8 in Table 13 below. The DRUs are 106-tone DRU5, 106-tone DRU6, and 52-tone DRU9 to 52-tone DRU12 in Table 13 below. The 106-tone DRU and 52-tone DRU constructed based on 242-tone DRU4 = [-496:4:-16,20:4:500] are 106-tone DRU7, 106-tone DRU8, and 52-tone DRU13 to 52-tone DRU16 in Table 13 below.

[0593] For example, for the 121 subcarriers in the lower half-band, l1 = 1, l 10 =0, when j = 2, 3, ..., 9, l j =2; when i = 2, 3, 4, 6, 7, 8, k i =3, k5=4, k1=k9=2; s'=3, t'=4, for the 121 subcarriers in the upper half-band, l1=0, l 10 =1, when j = 2, 3, ..., 9, l j =2; when i = 2, 3, 4, 6, 7, 8, k i=3, k5=4, k1=k9=2; s=15, t=16, then the 106-tone DRU and 52-tone DRU constructed according to 242-tone DRU1=[-499:4:-19,17:4:497] are respectively 106-tone DRU1, 106-tone DRU2, and 52-tone DRU1 to 52-tone DRU4 in Table 14 below. The 106-tone DRU and 52-tone DRU constructed according to 242-tone DRU2=[-497:4:-17,19:4:499] are respectively 106-tone DRU3, 106-tone DRU4, and 52-tone DRU5 to 52-tone DRU8 in Table 14 below. The 106-tone DRU constructed according to 242-tone DRU3=[-498:4:-18,18:4:498] are respectively 106-tone DRU3, 106-tone DRU4, and 52-tone DRU5 to 52-tone DRU8 in Table 14 below. The DRU and 52-tone DRU are 106-tone DRU5, 106-tone DRU6, 52-tone DRU9 to 52-tone DRU12 in Table 14 below. The 106-tone DRU and 52-tone DRU constructed according to 242-tone DRU4 = [-496:4:-16,20:4:500] are 106-tone DRU7, 106-tone DRU8, 52-tone DRU13 to 52-tone DRU16 in Table 14 below.

[0594] It should be noted that if k i l j If the values ​​of s, t, s' or t' are different, then the subcarrier indices included in the 106-tone DRU and / or 52-tone DRU constructed from the 242-tone DRU will be different. For the sake of brevity, this application will not list them all here.

[0595] It should also be noted that the method of constructing 106-tone DRU and / or 52-tone-DRU according to eq.17 above in this application embodiment is only an example. In actual implementation, 106-tone DRU and / or 52-tone-DRU may be constructed in other ways, but the index of the subcarriers included in 106-tone DRU and / or 52-tone-DRU and the index of the subcarriers included in 242-tone DRU satisfy the relationship shown in eq.17 above.

[0596] For example, the first resource unit is one of 52-tone DRU1 to 52-tone DRU16 in Table 13 below, or one of 106-tone DRU1 to 106-tone DRU8 in Table 13 below.

[0597] Table 13

[0598] For example, the first resource unit is one of 52-tone DRU1 to 52-tone DRU16 in Table 14 below, or one of 106-tone DRU1 to 106-tone DRU8 in Table 14 below.

[0599] Table 14

[0600] In this application, [a:c:b] represents a set of subcarrier indices, which includes subcarriers starting from subcarrier index a and ending at subcarrier index b, with a step size of c, i.e., the set is [a, a+c, a+2c, ...]. Furthermore, if ba is an integer multiple of c, then [a:c:b] includes index b; if ba is not an integer multiple of c, then [a:c:b] does not include index b.

[0601] As shown in Tables 13 and 14 above, the index difference between adjacent subcarriers in the aforementioned 106-tone DRU is 2. 3 The minimum value of the difference between the indices of adjacent subcarriers is 2, and the integer multiple of the indices of the subcarriers is 2. 3 The index difference between adjacent subcarriers in the above 52-tone DRU is an integer multiple of 2. 3 The minimum value of the difference between the indices of adjacent subcarriers is 2, and the integer multiple of the indices of the subcarriers is 2. 4 Integer multiples of.

[0602] Furthermore, the eight 106-tone DRUs in Table 13 or Table 14 have the same structure. For example, 106-tone DRU1 can be obtained by translating any one of 106-tone DRU2 to 106-tone DRU8; 106-tone DRU2 can be obtained by translating any one of 106-tone DRU1, 106-tone DRU3 to 106-tone DRU8. The sixteen 52-tone DRUs in Table 13 or Table 14 have the same structure. For example, 52-tone DRU1 can be obtained by translating any one of 52-tone DRU2 to 52-tone DRU16; 52-tone DRU2 can be obtained by translating any one of 52-tone DRU1, 52-tone DRU3 to 52-tone DRU16.

[0603] Additionally, 52-tone DRU2j-1 and 52-tone DRU2j in Table 13 above are included within 106-tone DRUj, j = 1, 2, 3, ..., 8. 52-tone DRU2j-1 and 52-tone DRU2j in Table 14 above are included within 106-tone DRUj, j = 1, 2, 3, ..., 8.

[0604] The performance of method 300 will be explained below with reference to Figures 10 and 11.

[0605] Figure 10 compares the performance of data transmission using the DRU in Example 5, the continuous RU in Table 1, and the existing DRU. Specifically, 100,000 sets of random binary phase shift keying (BPSK) and quadrature phase shift keying (QPSK) data were randomly generated for each type of DRU in Example 5, each type of continuous RU in Table 1, and the existing DRU. Then, the distribution of their PAPR was statistically analyzed, and the complementary cumulative distribution function (CCDF) of the different data was compared, resulting in Figure 10. The complementary cumulative distribution function F(a) is a continuous function representing the sum of probabilities of all values ​​greater than a, i.e., F(a) = P(A>a)).

[0606] Figure 10 is a performance comparison of the DRU in Example 5 with the continuous RU and existing DRU shown in Table 1.

[0607] Figure 10(a) is a comparison of PAPR performance for transmitting random BPSK data using the 106-tone DRU in Example 5, the 106-tone RU in Table 1, and the existing 106-tone DRU.

[0608] Figure 10(b) is a comparison of PAPR performance when transmitting random QPSK data using the 106-tone DRU in Example 5, the 106-tone RU in Table 1, and the existing 106-tone DRU.

[0609] Figure 10(c) is a comparison of PAPR performance when transmitting random BPSK data using the 52-tone DRU in Example 5, the 52-tone RU in Table 1, and the existing 52-tone DRU.

[0610] Figure 10(d) is a comparison of PAPR performance when transmitting random QPSK data using the 52-tone DRU in Example 5, the 52-tone RU in Table 1, and the existing 52-tone DRU.

[0611] As shown in Figure 10, for DRUs of different sizes and different modulation schemes, the DRU in Example 5 of this application has a PAPR distribution similar to that of a continuous RU of the same size. That is, although the DRU in Example 5 is discrete across a larger bandwidth compared to a continuous RU, its PAPR does not increase. Therefore, compared to a continuous RU, the DRU in this embodiment can improve transmission power without affecting PAPR. Compared to a non-uniformly distributed DRU, the DRU in this embodiment can reduce PAPR. Furthermore, compared to existing DRUs, the DRUs in Example 5 of this application all have smaller PAPR distributions.

[0612] Figure 11 shows the distribution of the normalized delay autocorrelation peak. Figure 11 is a schematic diagram of the distribution of the normalized delay autocorrelation peak based on the DRU statistics in Example 5. Specifically, the normalized delay under different sub-channels was calculated according to eq.15 and eq.16 above. The peak distribution shows that the peaks related to a delay of 0.8us are mostly much smaller than the usual threshold of 0.5, and will not trigger false detections of PPDU.

[0613] Figures 12 and 13 are schematic diagrams of the communication devices provided in the embodiments of this application. These communication devices can be used to implement the functions of the first station or the second station in the above method embodiments, and thus can also achieve the beneficial effects of the above method embodiments. In the embodiments of this application, the communication device can be the first station or the second station, or it can be a module (such as a chip) applied to the first station or the second station.

[0614] As shown in Figure 12, the communication device 2000 includes a processing unit 2010 and a transceiver unit 2020. The communication device 2000 is used to implement the functions of the first station or the second station in the method embodiment shown in Figure 3 above.

[0615] When the communication device 2000 is used to implement the function of the first station in the method embodiment shown in FIG3: the processing unit 2010 is used to determine first information, which is used to instruct the first resource unit. The transceiver unit 2020 is used to send the first information.

[0616] When the communication device 2000 is used to implement the function of the second station in the method embodiment shown in FIG3: the transceiver unit 2020 is used to receive first information, and the processing unit 2010 is used to receive or send data according to the first resource unit.

[0617] For a more detailed description of the first information, the first resource unit, and the aforementioned processing unit 2010 and transceiver unit 2020, please refer to the relevant description in method 300 shown in Figure 3, which will not be repeated here.

[0618] In one possible implementation, the communication device 2000 may further include a storage unit 2030 for storing programs or instructions to implement the functions of the first or second station in the above method embodiments.

[0619] As shown in Figure 13, the communication device 3000 includes a processor 3010 and an interface circuit 3020. The processor 3010 and the interface circuit 3020 are coupled together. It is understood that the interface circuit 3020 can be a transceiver or an input / output interface. Optionally, the communication device 3000 may also include a memory 3030 for storing instructions executed by the processor 3010, or storing input data required by the processor 3010 to execute instructions, or storing data generated after the processor 3010 executes instructions. Sometimes, the interface circuit 3020 can also be understood as part of the processor 3010, in which case the communication device 3000 includes the processor 3010.

[0620] When the communication device 3000 is used to implement the method shown in FIG3, the processor 3010 is used to implement the function of the processing unit 2010, and the interface circuit 3020 is used to implement the function of the transceiver unit 2020.

[0621] When the aforementioned communication device is a chip applied to the first station, the chip implements the functions of the first station in the above method embodiments. The chip receives information from the second station, which can be understood as the information being first received by other modules (such as an RF module or antenna) in the first station, and then sent to the chip by these modules. The chip sends information to the second station, which can be understood as the information being first sent to other modules (such as an RF module or antenna) in the first station, and then sent to the second station by these modules.

[0622] When the aforementioned communication device is a chip applied to the second station, the chip implements the functions of the second station in the above method embodiments. The chip receives information from the first station, which can be understood as the information being first received by other modules (such as an RF module or antenna) in the second station, and then sent to the chip by these modules. The chip sends information to the first station, which can be understood as the information being first sent to other modules (such as an RF module or antenna) in the second station, and then sent to the first station by these modules.

[0623] This application also provides a processor for executing the methods in the above-described method embodiments.

[0624] This application also provides a computer-readable storage medium storing computer instructions for implementing the methods executed by a communication device (such as a first station or a second station) in the above-described method embodiments.

[0625] For example, when the computer program is executed by a computer, it enables the computer to implement the methods performed by the communication device (such as the first station or the second station) in the various embodiments of the above methods.

[0626] This application also provides a computer program product comprising instructions which, when executed by a computer, implement the methods described above as being performed by a communication device (such as a first station or a second station).

[0627] This application also provides a chip, which includes a processor and a communication interface. The processor reads instructions stored in a memory through the communication interface and executes the methods performed by the communication device (such as a first station or a second station) in the above embodiments. The communication interface can be implemented in hardware or software.

[0628] In one implementation, the chip also includes a memory that stores computer programs or instructions. The processor is used to execute the computer programs or instructions stored in the memory. When the computer programs or instructions are executed, the processor is used to perform the methods executed by the communication device (such as the first station or the second station) in the above embodiments.

[0629] When the method provided in this application is executed by a chip, this application does not limit the specific number of chips implementing the method. For example, it can be executed by one chip, or by two or more chips. Furthermore, when the number of chips implementing the method is two or more, the chip manufacturers are not limited; they can be from the same manufacturer or different manufacturers.

[0630] This application also provides a computer program that, when run on a computer, causes the methods executed by the communication device (such as a first station or a second station) in the above embodiments to be performed.

[0631] This application also provides a communication system that includes a first station and / or a second station as described in the embodiments above. For example, the system includes the first station and the second station shown in FIG3.

[0632] The explanations and beneficial effects of the relevant contents in any of the devices provided above can be found in the corresponding method embodiments provided above, and will not be repeated here.

[0633] It is understood that the processor in the embodiments of this application may be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. A general-purpose processor may be a microprocessor or any conventional processor.

[0634] The method steps in the embodiments of this application can be implemented in hardware or in software instructions executable by a processor. The software instructions can consist of corresponding software modules, which can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, registers, hard disks, portable hard disks, CD-ROMs, or any other form of storage medium known in the art. An exemplary storage medium is coupled to a processor, enabling the processor to read information from and write information to the storage medium. The storage medium can also be a component of the processor. The processor and the storage medium can reside in an ASIC. Alternatively, the ASIC can reside in a first site or a second site. The processor and the storage medium can also exist as discrete components in the first site or the second site.

[0635] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of this application are performed entirely or partially. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user equipment, or other programmable device. The computer program or instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program or instructions can be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; it can also be an optical medium, such as a digital video optical disc; or it can be a semiconductor medium, such as a solid-state drive. The computer-readable storage medium may be a volatile or non-volatile storage medium, or may include both types of storage media.

[0636] In the various embodiments of this application, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of different embodiments are consistent and can be referenced by each other. The technical features of different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0637] In this application, "at least one" means one or more, and "more than one" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, or B exists alone, where A and B can be singular or plural. In the textual description of this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship. "Including at least one of A, B, and C" can mean: including A; including B; including C; including A and B; including A and C; including B and C; including A, B, and C.

[0638] It should be understood that in the various embodiments of this application, the terms "first," "second," and various numerical designations are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application. The order of the sequence numbers of the above processes does not imply the order of execution; the execution order of each process should be determined by its function and internal logic.

[0639] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0640] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0641] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0642] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0643] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0644] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

Claims

1. A communication method, characterized in that, include: First information is determined, which is used to indicate a first resource unit, the first resource unit is distributed in an 80MHz bandwidth, the first resource unit includes 106 subcarriers or 52 subcarriers, and the difference between the indices of any two adjacent subcarriers in the first resource unit is an integer multiple of 8. Send the first message.

2. A communication method, characterized in that, include: Receive first information, the first information is used to indicate a first resource unit, the first resource unit is distributed in an 80MHz bandwidth, the first resource unit includes 106 subcarriers or 52 subcarriers, and the difference between the indices of any two adjacent subcarriers in the first resource unit is an integer multiple of 8. Data is sent or received according to the first resource unit.

3. The method according to claim 1 or 2, characterized in that, The difference between the indices of two adjacent subcarriers in the first resource unit is not always an integer multiple of 16.

4. The method according to any one of claims 1 to 3, characterized in that, The first resource unit comprises 106 subcarriers, and the index of the subcarriers included in the first resource unit is one of the following: [-467:8:-379,-363:8:-43,45:8:365,381:8:469]； [-471:8:-383,-367:8:-47,41:8:361,377:8:465]； [-465:8:-377,-361:8:-41,47:8:367,383:8:471]； [-469:8:-381,-365:8:-45,43:8:363,379:8:467]； [-466:8:-378,-362:8:-42,46:8:366,382:8:470]； [-470:8:-382,-366:8:-46,42:8:362,378:8:466]； [-464:8:-376,-360:8:-40,48:8:368,384:8:472]； [-468:8:-380,-364:8:-44,44:8:364,380:8:468]； Alternatively, the index of the subcarriers included in the first resource unit is one of the following: [-459:8:-43,45:8:461]； [-463:8:-47,41:8:457]； [-457:8:-41,47:8:463]； [-461:8:-45,43:8:459]； [-458:8:-42,46:8:462]； [-462:8:-46,42:8:458]； [-456:8:-40,48:8:464]； [-460:8:-44,44:8:460]； Alternatively, the index of the subcarriers included in the first resource unit is one of the following: [-483:24:-363,-475:24:-355,-339:8:-19,21:8:341,357:24:477,365:24:485]； [-487:24:-367,-479:24:-359,-343:8:-23,17:8:337,353:24:473,361:24:481]； [-481:24:-361,-473:24:-353,-337:8:-17,23:8:343,359:24:479,367:24:487]； [-485:24:-365,-477:24:-357,-341:8:-21,19:8:339,355:24:475,363:24:483]； [-482:24:-362,-474:24:-354,-338:8:-18,22:8:342,358:24:478,366:24:486]； [-486:24:-366,-478:24:-358,-342:8:-22,18:8:338,354:24:474,362:24:482]； [-480:24:-360,-472:24:-352,-336:8:-16,24:8:344,360:24:480,368:24:488]； [-484:24:-364,-476:24:-356,-340:8:-20,20:8:340,356:24:476,364:24:484]； Alternatively, the index of the subcarriers included in the first resource unit is one of the following: [-475:72:-43,-467:72:-35,-459:72:-27,-451:72:-19,-443:72:-83,-435:72:-75,-427:72:-67,-419:72:-59,-51,21:72:453,29:72:461,37:72:469,45:72:477,53,61:72:421,69:72:429,77:72:437,85:72:445]； [-479:72:-47,-471:72:-39,-463:72:-31,-455:72:-23,-447:72:-87,-439:72:-79,-431:72:-71,-423:72:-63,-55,17:72:449,25:72:457,33:72:465,41:72:473,49,57:72:417,65:72:425,73:72:433,81:72:441]； [-473:72:-41,-465:72:-33,-457:72:-25,-449:72:-17,-441:72:-81,-433:72:-73,-425:72:-65,-417:72:-57,-49,23:72:455,31:72:463,39:72:471,47:72:479,55,63:72:423,71:72:431,79:72:439,87:72:447]； [-477:72:-45,-469:72:-37,-461:72:-29,-453:72:-21,-445:72:-85,-437:72:-77,-429:72:-69,-421:72:-61,-53,19:72:451,27:72:459,35:72:467,43:72:475,51,59:72:419,67:72:427,75:72:435,83:72:443]； [-474:72:-42,-466:72:-34,-458:72:-26,-450:72:-18,-442:72:-82,-434:72:-74,-426:72:-66,-418:72:-58,-50,22:72:454,30:72:462,38:72:470,46:72:478,54,62:72:422,70:72:430,78:72:438,86:72:446]； [-478:72:-46,-470:72:-38,-462:72:-30,-454:72:-22,-446:72:-86,-438:72:-78,-430:72:-70,-422:72:-62,-54,18:72:450,26:72:458,34:72:466,42:72:474,50,58:72:418,66:72:426,74:72:434,82:72:442]； [-472:72:-40,-464:72:-32,-456:72:-24,-448:72:-16,-440:72:-80,-432:72:-72,-424:72:-64,-416:72:-56,-48,24:72:456,32:72:464,40:72:472,48:72:480,56,64:72:424,72:72:432,80:72:440,88:72:448]； [-476:72:-44,-468:72:-36,-460:72:-28,-452:72:-20,-444:72:-84,-436:72:-76,-428:72:-68,-420:72:-60,-52,20:72:452,28:72:460,36:72:468,44:72:476,52,60:72:420,68:72:428,76:72:436,84:72:444]； Alternatively, the index of the subcarriers included in the first resource unit is one of the following: [-495:56:-47,-487:56:-39,-479:56:-31,-471:56:-23,-463:56:-71,-455:56:-63,-55,17:56:465,25:56:473,33:56:481,41:56:489,49,57:56:449,65:56:457]； [-491:56:-43,-483:56:-35,-475:56:-27,-467:56:-19,-459:56:-67,-451:56:-59,-51,21:56:469,29:56:477,37:56:485,45:56:493,53,61:56:453,69:56:461]； [-489:56:-41,-481:56:-33,-473:56:-25,-465:56:-17,-457:56:-65,-449:56:-57,-49,23:56:471,31:56:479,39:56:487,47:56:495,55,63:56:455,71:56:463]； [-493:56:-45,-485:56:-37,-477:56:-29,-469:56:-21-461:56:-69,-453:56:-61,-53,19:56:467,27:56:475,35:56:483,43:56:491,51,59:56:451,67:56:459]； [-494:56:-46,-486:56:-38,-478:56:-30,-470:56:-22,-462:56:-70,-454:56:-62,-54,18:56:466,26:56:474,34:56:482,42:56:490,50,58:56:450,66:56:458]； [-490:56:-42,-482:56:-34,-474:56:-26,-466:56:-18,-458:56:-66,-450:56:-58,-50,22:56:470,30:56:478,38:56:486,46:56:494,54,62:56:454,70:56:462]； [-488:56:-40,-480:56:-32,-472:56:-24,-464:56:-16,-456:56:-64,-448:56:-56,-48,24:56:472,32:56:480,40:56:488,48:56:496,56,64:56:456,72:56:464]； [-492:56:-44,-484:56:-36,-476:56:-28,-468:56:-20,-460:56:-68,-452:56:-60,-52,20:56:468,28:56:476,36:56:484,44:56:492,52,60:56:452,68:56:460]； Alternatively, the index of the subcarriers included in the first resource unit is one of the following: [-495:56:-271,-487:56:-263,-479:56:-255,-471:56:-247,-463,-455:56:-287,-447:56:-279,-239:56:-71,-231:56:-63,-215:56:-47,-207:56:-39,-199:56:-31,-191:56:-23,17:56:241,25:56:249,33:56:257,41:56:265,57:56:225,65:56:233,273:56:441,281:56:449,297:56:465,305:56:473,313:56:481,321:56:489,457]； [-491:56:-267,-483:56:-259,-475:56:-251,-467:56:-243,-459,-451:56:-283,-443:56:-275,-235:56:-67,-227:56:-59,-211:56:-43,-203:56:-35,-195:56:-27,-187:56:-19,21:56:245,29:56:253,37:56:261,45:56:269,61:56:229,69:56:237,277:56:445,285:56:453,301:56:469,309:56:477,317:56:485,325:56:493,461]； [-489:56:-265,-481:56:-257,-473:56:-249,-465:56:-241,-457,-449:56:-281,-441:56:-273,-233:56:-65,-225:56:-57,-209:56:-41,-201:56:-33,-193:56:-25,-185:56:-17,23:56:247,31:56:255,39:56:263,47:56:271,63:56:231,71:56:239,279:56:447,287:56:455,303:56:471,311:56:479,319:56:487,327:56:495,463]； [-493:56:-269,-485:56:-261,-477:56:-253,-469:56:-245,-461,-453:56:-285,-445:56:-277,-237:56:-69,-229:56:-61,-213:56:-45,-205:56:-37,-197:56:-29,-189:56:-21,19:56:243,27:56:251,35:56:259,43:56:267,59:56:227,67:56:235,275:56:443,283:56:451,299:56:467,307:56:475,315:56:483,323:56:491,459]； [-494:56:-270,-486:56:-262,-478:56:-254,-470:56:-246,-462,-454:56:-286,-446:56:-278,-238:56:-70,-230:56:-62,-214:56:-46,-206:56:-38,-198:56:-30,-190:56:-22,18:56:242,26:56:250,34:56:258,42:56:266,58:56:226,66:56:234,274:56:442,282:56:450,298:56:466,306:56:474,314:56:482,322:56:490,458]； [-490:56:-266,-482:56:-258,-474:56:-250,-466:56:-242,-458,-450:56:-282,-442:56:-274,-234:56:-66,-226:56:-58,-210:56:-42,-202:56:-34,-194:56:-26,-186:56:-18,22:56:246,30:56:254,38:56:262,46:56:270,62:56:230,70:56:238,278:56:446,286:56:454,302:56:470,310:56:478,318:56:486,326:56:494,462]； [-488:56:-264,-480:56:-256,-472:56:-248,-464:56:-240,-456,-448:56:-280,-440:56:-272,-232:56:-64,-224:56:-56,-208:56:-40,-200:56:-32,-192:56:-24,-184:56:-16,24:56:248,32:56:256,40:56:264,48:56:272,64:56:232,72:56:240,280:56:448,288:56:456,304:56:472,312:56:480,320:56:488,328:56:496,464]； [-492:56:-268,-484:56:-260,-476:56:-252,-468:56:-244,-460,-452:56:-284,-444:56:-276,-236:56:-68,-228:56:-60,-212:56:-44,-204:56:-36,-196:56:-28,-188:56:-20,20:56:244,28:56:252,36:56:260,44:56:268,60:56:228,68:56:236,276:56:444,284:56:452,300:56:468,308:56:476,316:56:484,324:56:492,460]； Wherein, [a:c:b] represents a set of subcarrier indices, which includes subcarriers starting from subcarrier index a and ending at subcarrier index b, with a step size of c.

5. The method according to any one of claims 1 to 3, characterized in that, The first resource unit comprises 52 subcarriers, and the index of the subcarriers included in the first resource unit is one of the following: [-467:16:-387,-363:16:-155,-131:16:-51,45:16:125,149:16:357,381:16:461]； [-459:16:-379,-355:16:-147,-123:16:-43,53:16:133,157:16:365,389:16:469]； [-463:16:-383,-359:16:-151,-127:16:-47,49:16:129,153:16:361,385:16:465]； [-471:16:-391,-367:16:-159,-135:16:-55,41:16:121,145:16:353,377:16:457]； [-465:16:-385,-361:16:-153,-129:16:-49,47:16:127,151:16:359,383:16:463]； [-457:16:-377,-353:16:-145,-121:16:-41,55:16:135,159:16:367,391:16:471]； [-461:16:-381,-357:16:-149,-125:16:-45,51:16:131,155:16:363,387:16:467]； [-469:16:-389,-365:16:-157,-133:16:-53,43:16:123,147:16:355,379:16:459]； [-466:16:-386,-362:16:-154,-130:16:-50,46:16:126,150:16:358,382:16:462]； [-458:16:-378,-354:16:-146,-122:16:-42,54:16:134,158:16:366,390:16:470]； [-462:16:-382,-358:16:-150,-126:16:-46,50:16:130,154:16:362,386:16:466]； [-470:16:-390,-366:16:-158,-134:16:-54,42:16:122,146:16:354,378:16:458]； [-464:16:-384,-360:16:-152,-128:16:-48,48:16:128,152:16:360,384:16:464]； [-456:16:-376,-352:16:-144,-120:16:-40,56:16:136,160:16:368,392:16:472]； [-460:16:-380,-356:16:-148,-124:16:-44,52:16:132,156:16:364,388:16:468]； [-468:16:-388,-364:16:-156,-132:16:-52,44:16:124,148:16:356,380:16:460]； Alternatively, the index of the subcarriers included in the first resource unit is one of the following: [-459:16:-267,-243:16:-51,45:16:237,261:16:453]； [-451:16:-259,-235:16:-43,53:16:245,269:16:461]； [-455:16:-263,-239:16:-47,49:16:241,265:16:457]； [-463:16:-271,-247:16:-55,41:16:233,257:16:449]； [-457:16:-265,-241:16:-49,47:16:239,263:16:455]； [-449:16:-257,-233:16:-41,55:16:247,271:16:463]； [-453:16:-261,-237:16:-45,51:16:243,267:16:459]； [-461:16:-269,-245:16:-53,43:16:235,259:16:451]； [-458:16:-266,-242:16:-50,46:16:238,262:16:454]； [-450:16:-258,-234:16:-42,54:16:246,270:16:462]； [-454:16:-262,-238:16:-46,50:16:242,266:16:458]； [-462:16:-270,-246:16:-54,42:16:234,258:16:450]； [-456:16:-264,-240:16:-48,48:16:240,264:16:456]； [-448:16:-256,-232:16:-40,56:16:248,272:16:464]； [-452:16:-260,-236:16:-44,52:16:244,268:16:460]； [-460:16:-268,-244:16:-52,44:16:236,260:16:452]； Alternatively, the index of the subcarriers included in the first resource unit is one of the following: [-483:24:-315,-299:16:-27,21:16:293,309:24:477]； [-475:24:-307,-291:16:-19,29:16:301,317:24:485]； [-479:24:-311,-295:16:-23,25:16:297,313:24:481]； [-487:24:-319,-303:16:-31,17:16:289,305:24:473]； [-481:24:-313,-297:16:-25,23:16:295,311:24:479]； [-473:24:-305,-289:16:-17,31:16:303,319:24:487]； [-477:24:-309,-293:16:-21,27:16:299,315:24:483]； [-485:24:-317,-301:16:-29,19:16:291,307:24:475]； [-482:24:-314,-298:16:-26,22:16:294,310:24:478]； [-474:24:-306,-290:16:-18,30:16:302,318:24:486]； [-478:24:-310,-294:16:-22,26:16:298,314:24:482]； [-486:24:-318,-302:16:-30,18:16:290,306:24:474]； [-480:24:-312,-296:16:-24,24:16:296,312:24:480]； [-472:24:-304,-288:16:-16,32:16:304,320:24:488]； [-476:24:-308,-292:16:-20,28:16:300,316:24:484]； [-484:24:-316,-300:16:-28,20:16:292,308:24:476]； Alternatively, the index of the subcarriers included in the first resource unit is one of the following: [-475:72:-43,-459:72:-27,-443:72:-83,-427:72:-67,21:72:453,37:72:469,61:72:421,77:72:437]； [-467:72:-35,-451:72:-19,-435:72:-75,-419:72:-59,29:72:461,45:72:477,69:72:429,85:72:445]； [-471:72:-39,-455:72:-23,-439:72:-79,-423:72:-63,25:72:457,41:72:473,65:72:425,81:72:441]； [-479:72:-47,-463:72:-31,-447:72:-87,-431:72:-71,17:72:449,33:72:465,57:72:417,73:72:433]； [-473:72:-41,-457:72:-25,-441:72:-81,-425:72:-65,23:72:455,39:72:471,63:72:423,79:72:439]； [-465:72:-33,-449:72:-17,-433:72:-73,-417:72:-57,31:72:463,47:72:479,71:72:431,87:72:447]； [-469:72:-37,-453:72:-21,-437:72:-77,-421:72:-61,27:72:459,43:72:475,67:72:427,83:72:443]； [-477:72:-45,-461:72:-29,-445:72:-85,-429:72:-69,19:72:451,35:72:467,59:72:419,75:72:435]； [-474:72:-42,-458:72:-26,-442:72:-82,-426:72:-66,22:72:454,38:72:470,62:72:422,78:72:438]； [-466:72:-34,-450:72:-18,-434:72:-74,-418:72:-58,30:72:462,46:72:478,70:72:430,86:72:446]； [-470:72:-38,-454:72:-22,-438:72:-78,-422:72:-62,26:72:458,42:72:474,66:72:426,82:72:442]； [-478:72:-46,-462:72:-30,-446:72:-86,-430:72:-70,18:72:450,34:72:466,58:72:418,74:72:434]； [-472:72:-40,-456:72:-24,-440:72:-80,-424:72:-64,24:72:456,40:72:472,64:72:424,80:72:440]； [-464:72:-32,-448:72:-16,-432:72:-72,-416:72:-56,32:72:464,48:72:480,72:72:432,88:72:448]； [-468:72:-36,-452:72:-20,-436:72:-76,-420:72:-60,28:72:460,44:72:476,68:72:428,84:72:444]； [-476:72:-44,-460:72:-28,-444:72:-84,-428:72:-68,20:72:452,36:72:468,60:72:420,76:72:436]； Alternatively, the index of the subcarriers included in the first resource unit is one of the following: [-495:56:-47,-479:56:-31,-463:56:-71,17:56:465,33:56:481,57:56:449]； [-487:56:-39,-471:56:-23,-455:56:-63,25:56:473,41:56:489,65:56:457]； [-491:56:-43,-475:56:-27,-459:56:-67,21:56:469,37:56:485,61:56:453]； [-483:56:-35,-467:56:-19,-451:56:-59,29:56:477,45:56:493,69:56:461]； [-489:56:-41,-473:56:-25,-457:56:-65,23:56:471,39:56:487,63:56:455]； [-481:56:-33,-465:56:-17,-449:56:-57,31:56:479,47:56:495,71:56:463]； [-493:56:-45,-477:56:-29,-461:56:-69,19:56:467,35:56:483,59:56:451]； [-485:56:-37,-469:56:-21,-453:56:-61,27:56:475,43:56:491,67:56:459]； [-494:56:-46,-478:56:-30,-462:56:-70,18:56:466,34:56:482,58:56:450]； [-486:56:-38,-470:56:-22,-454:56:-62,26:56:474,42:56:490,66:56:458]； [-490:56:-42,-474:56:-26,-458:56:-66,22:56:470,38:56:486,62:56:454]； [-482:56:-34,-466:56:-18,-450:56:-58,30:56:478,46:56:494,70:56:462]； [-488:56:-40,-472:56:-24,-456:56:-64,24:56:472,40:56:488,64:56:456]； [-480:56:-32,-464:56:-16,-448:56:-56,32:56:480,48:56:496,72:56:464]； [-492:56:-44,-476:56:-28,-460:56:-68,20:56:468,36:56:484,60:56:452]； [-484:56:-36,-468:56:-20,-452:56:-60,28:56:476,44:56:492,68:56:460]； Alternatively, the index of the subcarriers included in the first resource unit is one of the following: [-495:56:-271,-479:56:-255,-455:56:-287,-239:56:-71,-215:56:-47,-199:56:-31,17:56:241,33:56:257,57:56:225,273:56:441,297:56:465,313:56:481]； [-487:56:-263,-471:56:-247,-447:56:-279,-231:56:-63,-207:56:-39,-191:56:-23,25:56:249,41:56:265,65:56:233,281:56:449,305:56:473,321:56:489]； [-491:56:-267,-475:56:-251,-451:56:-283,-235:56:-67,-211:56:-43,-195:56:-27,21:56:245,37:56:261,61:56:229,277:56:445,301:56:469,317:56:485]； [-483:56:-259,-467:56:-243,-443:56:-275,-227:56:-59,-203:56:-35,-187:56:-19,29:56:253,45:56:269,69:56:237,285:56:453,309:56:477,325:56:493]； [-489:56:-265,-473:56:-249,-449:56:-281,-233:56:-65,-209:56:-41,-193:56:-25,23:56:247,39:56:263,63:56:231,279:56:447,303:56:471,319:56:487]； [-481:56:-257,-465:56:-241,-441:56:-273,-225:56:-57,-201:56:-33,-185:56:-17,31:56:255,47:56:271,71:56:239,287:56:455,311:56:479,327:56:495]； [-493:56:-269,-477:56:-253,-453:56:-285,-237:56:-69,-213:56:-45,-197:56:-29,19:56:243,35:56:259,59:56:227,275:56:443,299:56:467,315:56:483]； [-485:56:-261,-469:56:-245,-445:56:-277,-229:56:-61,-205:56:-37,-189:56:-21,27:56:251,43:56:267,67:56:235,283:56:451,307:56:475,323:56:491]； [-494:56:-270,-478:56:-254,-454:56:-286,-238:56:-70,-214:56:-46,-198:56:-30,18:56:242,34:56:258,58:56:226,274:56:442,298:56:466,314:56:482]； [-486:56:-262,-470:56:-246,-446:56:-278,-230:56:-62,-206:56:-38,-190:56:-22,26:56:250,42:56:266,66:56:234,282:56:450,306:56:474,322:56:490]； [-490:56:-266,-474:56:-250,-450:56:-282,-234:56:-66,-210:56:-42,-194:56:-26,22:56:246,38:56:262,62:56:230,278:56:446,302:56:470,318:56:486]； [-482:56:-258,-466:56:-242,-442:56:-274,-226:56:-58,-202:56:-34,-186:56:-18,30:56:254,46:56:270,70:56:238,286:56:454,310:56:478,326:56:494]； [-488:56:-264,-472:56:-248,-448:56:-280,-232:56:-64,-208:56:-40,-192:56:-24,24:56:248,40:56:264,64:56:232,280:56:448,304:56:472,320:56:488]； [-480:56:-256,-464:56:-240,-440:56:-272,-224:56:-56,-200:56:-32,-184:56:-16,32:56:256,48:56:272,72:56:240,288:56:456,312:56:480,328:56:496]； [-492:56:-268,-476:56:-252,-452:56:-284,-236:56:-68,-212:56:-44,-196:56:-28,20:56:244,36:56:260,60:56:228,276:56:444,300:56:468,316:56:484]； [-484:56:-260,-468:56:-244,-444:56:-276,-228:56:-60,-204:56:-36,-188:56:-20,28:56:252,44:56:268,68:56:236,284:56:452,308:56:476,324:56:492]； Wherein, [a:c:b] represents a set of subcarrier indices, which includes subcarriers starting from subcarrier index a and ending at subcarrier index b, with a step size of c.

6. A communication method, characterized in that, include: First information is determined, which is used to indicate a first resource unit distributed in an 80MHz bandwidth. The first resource unit includes 2R subcarriers. The index of the first R subcarriers or the last R subcarriers included in the first resource unit has the following relationship with the index of the subcarriers included in a discrete resource unit including 242 subcarriers: Send the first message; Where the index is A i B i And indices N1 to N a+b+c+d All subcarriers belong to the discrete resource unit comprising 242 subcarriers, i = 1, 2, ..., 26, k1, k2, a, b, c and d are all non-negative integers, and a + b + c + d = 8; If R = 53, then the index is A. i and B i All subcarriers belong to the first resource unit, and their indices are N1 to N. a+b+c+d Of the subcarriers, only one belongs to the first resource unit; or, If R = 26, then the index is A. i Or B i The subcarriers belong to the first resource unit and are indexed as N1 to N. a+b+c+d N a+b+c+d None of the subcarriers belong to the first resource unit.

7. A communication method, characterized in that, include: Receive first information, which is used to indicate a first resource unit distributed in an 80MHz bandwidth. The first resource unit includes 2R subcarriers. The index of the first R subcarriers or the last R subcarriers included in the first resource unit has the following relationship with the index of the subcarriers included in a discrete resource unit including 242 subcarriers: Data is sent or received according to the first resource unit; Where the index is A i B i And indices N1 to N a+b+c+d All subcarriers belong to the discrete resource unit comprising 242 subcarriers, i = 1, 2, ..., 26, k1, k2, a, b, c and d are all non-negative integers, and a + b + c + d = 8; If R = 53, then the index is A. i and B i All subcarriers belong to the first resource unit, and their indices are N1 to N. a+b+c+d Of the subcarriers, only one belongs to the first resource unit; or, If R = 26, then the index is A. i Or B i The subcarriers belong to the first resource unit and are indexed as N1 to N. a+b+c+d None of the subcarriers belong to the first resource unit.

8. The method according to claim 6 or 7, characterized in that, R = 26, and at least one of b and c is odd.

9. The method according to claim 6 or 7, characterized in that, The first resource unit comprises 106 subcarriers, and the index of the subcarriers included in the first resource unit is one of the following: [-467:8:-379,-363:8:-43,45:8:365,381:8:469]； [-471:8:-383,-367:8:-47,41:8:361,377:8:465]； [-465:8:-377,-361:8:-41,47:8:367,383:8:471]； [-469:8:-381,-365:8:-45,43:8:363,379:8:467]； [-466:8:-378,-362:8:-42,46:8:366,382:8:470]； [-470:8:-382,-366:8:-46,42:8:362,378:8:466]； [-464:8:-376,-360:8:-40,48:8:368,384:8:472]； [-468:8:-380,-364:8:-44,44:8:364,380:8:468]； Alternatively, the index of the subcarriers included in the first resource unit is one of the following: [-459:8:-43,45:8:461]； [-463:8:-47,41:8:457]； [-457:8:-41,47:8:463]； [-461:8:-45,43:8:459]； [-458:8:-42,46:8:462]； [-462:8:-46,42:8:458]； [-456:8:-40,48:8:464]； [-460:8:-44,44:8:460]； Wherein, [a:c:b] represents a set of subcarrier indices, which includes subcarriers starting from subcarrier index a and ending at subcarrier index b, with a step size of c.

10. The method according to any one of claims 6 to 8, characterized in that, The first resource unit comprises 52 subcarriers, and the index of the subcarriers included in the first resource unit is one of the following: [-467:16:-387,-363:16:-155,-131:16:-51,45:16:125,149:16:357,381:16:461]； [-459:16:-379,-355:16:-147,-123:16:-43,53:16:133,157:16:365,389:16:469]； [-463:16:-383,-359:16:-151,-127:16:-47,49:16:129,153:16:361,385:16:465]； [-471:16:-391,-367:16:-159,-135:16:-55,41:16:121,145:16:353,377:16:457]； [-465:16:-385,-361:16:-153,-129:16:-49,47:16:127,151:16:359,383:16:463]； [-457:16:-377,-353:16:-145,-121:16:-41,55:16:135,159:16:367,391:16:471]； [-461:16:-381,-357:16:-149,-125:16:-45,51:16:131,155:16:363,387:16:467]； [-469:16:-389,-365:16:-157,-133:16:-53,43:16:123,147:16:355,379:16:459]； [-466:16:-386,-362:16:-154,-130:16:-50,46:16:126,150:16:358,382:16:462]； [-458:16:-378,-354:16:-146,-122:16:-42,54:16:134,158:16:366,390:16:470]； [-462:16:-382,-358:16:-150,-126:16:-46,50:16:130,154:16:362,386:16:466]； [-470:16:-390,-366:16:-158,-134:16:-54,42:16:122,146:16:354,378:16:458]； [-464:16:-384,-360:16:-152,-128:16:-48,48:16:128,152:16:360,384:16:464]； [-456:16:-376,-352:16:-144,-120:16:-40,56:16:136,160:16:368,392:16:472]； [-460:16:-380,-356:16:-148,-124:16:-44,52:16:132,156:16:364,388:16:468]； [-468:16:-388,-364:16:-156,-132:16:-52,44:16:124,148:16:356,380:16:460]； Alternatively, the index of the subcarriers included in the first resource unit is one of the following: [-459:16:-267,-243:16:-51,45:16:237,261:16:453]； [-451:16:-259,-235:16:-43,53:16:245,269:16:461]； [-455:16:-263,-239:16:-47,49:16:241,265:16:457]； [-463:16:-271,-247:16:-55,41:16:233,257:16:449]； [-457:16:-265,-241:16:-49,47:16:239,263:16:455]； [-449:16:-257,-233:16:-41,55:16:247,271:16:463]； [-453:16:-261,-237:16:-45,51:16:243,267:16:459]； [-461:16:-269,-245:16:-53,43:16:235,259:16:451]； [-458:16:-266,-242:16:-50,46:16:238,262:16:454]； [-450:16:-258,-234:16:-42,54:16:246,270:16:462]； [-454:16:-262,-238:16:-46,50:16:242,266:16:458]； [-462:16:-270,-246:16:-54,42:16:234,258:16:450]； [-456:16:-264,-240:16:-48,48:16:240,264:16:456]； [-448:16:-256,-232:16:-40,56:16:248,272:16:464]； [-452:16:-260,-236:16:-44,52:16:244,268:16:460]； [-460:16:-268,-244:16:-52,44:16:236,260:16:452]； Wherein, [a:c:b] represents a set of subcarrier indices, which includes subcarriers starting from subcarrier index a and ending at subcarrier index b, with a step size of c.

11. A communication method, characterized in that, include: First information is determined, which is used to indicate a first resource unit distributed in an 80MHz bandwidth. The first resource unit includes 2R subcarriers. The index of the first R subcarriers included in the first resource unit has the following relationship with the index of the first 121 subcarriers included in a discrete resource unit including 242 subcarriers, or the index of the last R subcarriers included in the first resource unit has the following relationship with the index of the last 121 subcarriers included in a discrete resource unit including 242 subcarriers: Send the first message; Where the index is A x B x C x D x And index is N y All subcarriers belong to the discrete resource unit comprising 242 subcarriers, x = 1, 2, ..., 26, y = 1, 2, ..., 15, k i l j All are non-negative integers, i = 1, 2, ..., 9, j = 1, 2, ..., 10. If R = 53, then the index is A. x and C x All subcarriers belong to the first resource unit, and their index is N. y Of the subcarriers, only one belongs to the first resource unit; or, If R = 53, then the index is B. x and D x All subcarriers belong to the first resource unit, and their index is N. y Of the subcarriers, only one belongs to the first resource unit; If R = 26, then the index is A. x The subcarrier belongs to the first resource unit, or its index is B. x The subcarrier belongs to the first resource unit, or its index is C. x The subcarrier belongs to the first resource unit, or its index is D. x The subcarrier belongs to the first resource unit and its index is N. y The subcarrier does not belong to the first resource unit.

12. A communication method, characterized in that, include: The system receives first information, which indicates a first resource unit distributed within an 80MHz bandwidth. The first resource unit comprises 2R subcarriers. The indices of the first R subcarriers in the first resource unit are related to the indices of the first 121 subcarriers in a discrete resource unit comprising 242 subcarriers, or the indices of the last R subcarriers in the first resource unit are related to the indices of the last 121 subcarriers in a discrete resource unit comprising 242 subcarriers. Data is sent or received according to the first resource unit; Where the index is A x B x C x D x And index is N y All subcarriers belong to the discrete resource unit comprising 242 subcarriers, x = 1, 2, ..., 26, y = 1, 2, ..., 15, k i l j All are non-negative integers, i = 1, 2, ..., 9, j = 1, 2, ..., 10. If R = 53, then the index is A. x and C x All subcarriers belong to the first resource unit, and their index is N. y Of the subcarriers, only one belongs to the first resource unit; or, If R = 53, then the index is B. x and D x All subcarriers belong to the first resource unit, and their index is N. y Of the subcarriers, only one belongs to the first resource unit; If R = 26, then the index is A. x The subcarrier belongs to the first resource unit, or its index is B. x The subcarrier belongs to the first resource unit, or its index is C. x The subcarrier belongs to the first resource unit, or its index is D. x The subcarrier belongs to the first resource unit and its index is N. y The subcarrier does not belong to the first resource unit.

13. The method according to claim 11 or 12, characterized in that, When R = 26, then when j = 2, ..., 9, l j It is an even number.

14. The method according to claim 11 or 12, characterized in that, The first resource unit comprises 106 subcarriers, and the index of the subcarriers included in the first resource unit is one of the following: [-495:56:-47,-487:56:-39,-479:56:-31,-471:56:-23,-463:56:-71,-455:56:-63,-55,17:56:465,25:56:473,33:56:481,41:56:489,49,57:56:449,65:56:457]； [-491:56:-43,-483:56:-35,-475:56:-27,-467:56:-19,-459:56:-67,-451:56:-59,-51,21:56:469,29:56:477,37:56:485,45:56:493,53,61:56:453,69:56:461]； [-489:56:-41,-481:56:-33,-473:56:-25,-465:56:-17,-457:56:-65,-449:56:-57,-49,23:56:471,31:56:479,39:56:487,47:56:495,55,63:56:455,71:56:463]； [-493:56:-45,-485:56:-37,-477:56:-29,-469:56:-21-461:56:-69,-453:56:-61,-53,19:56:467,27:56:475,35:56:483,43:56:491,51,59:56:451,67:56:459]； [-494:56:-46,-486:56:-38,-478:56:-30,-470:56:-22,-462:56:-70,-454:56:-62,-54,18:56:466,26:56:474,34:56:482,42:56:490,50,58:56:450,66:56:458]； [-490:56:-42,-482:56:-34,-474:56:-26,-466:56:-18,-458:56:-66,-450:56:-58,-50,22:56:470,30:56:478,38:56:486,46:56:494,54,62:56:454,70:56:462]； [-488:56:-40,-480:56:-32,-472:56:-24,-464:56:-16,-456:56:-64,-448:56:-56,-48,24:56:472,32:56:480,40:56:488,48:56:496,56,64:56:456,72:56:464]； [-492:56:-44,-484:56:-36,-476:56:-28,-468:56:-20,-460:56:-68,-452:56:-60,-52,20:56:468,28:56:476,36:56:484,44:56:492,52,60:56:452,68:56:460]； Alternatively, the index of the subcarriers included in the first resource unit is one of the following: [-495:56:-271,-487:56:-263,-479:56:-255,-471:56:-247,-463,-455:56:-287,-447:56:-279,-239:56:-71,-231:56:-63,-215:56:-47,-207:56:-39,-199:56:-31,-191:56:-23,17:56:241,25:56:249,33:56:257,41:56:265,57:56:225,65:56:233,273:56:441,281:56:449,297:56:465,305:56:473,313:56:481,321:56:489,457]； [-491:56:-267,-483:56:-259,-475:56:-251,-467:56:-243,-459,-451:56:-283,-443:56:-275,-235:56:-67,-227:56:-59,-211:56:-43,-203:56:-35,-195:56:-27,-187:56:-19,21:56:245,29:56:253,37:56:261,45:56:269,61:56:229,69:56:237,277:56:445,285:56:453,301:56:469,309:56:477,317:56:485,325:56:493,461]； [-489:56:-265,-481:56:-257,-473:56:-249,-465:56:-241,-457,-449:56:-281,-441:56:-273,-233:56:-65,-225:56:-57,-209:56:-41,-201:56:-33,-193:56:-25,-185:56:-17,23:56:247,31:56:255,39:56:263,47:56:271,63:56:231,71:56:239,279:56:447,287:56:455,303:56:471,311:56:479,319:56:487,327:56:495,463]； [-493:56:-269,-485:56:-261,-477:56:-253,-469:56:-245,-461,-453:56:-285,-445:56:-277,-237:56:-69,-229:56:-61,-213:56:-45,-205:56:-37,-197:56:-29,-189:56:-21,19:56:243,27:56:251,35:56:259,43:56:267,59:56:227,67:56:235,275:56:443,283:56:451,299:56:467,307:56:475,315:56:483,323:56:491,459]； [-494:56:-270,-486:56:-262,-478:56:-254,-470:56:-246,-462,-454:56:-286,-446:56:-278,-238:56:-70,-230:56:-62,-214:56:-46,-206:56:-38,-198:56:-30,-190:56:-22,18:56:242,26:56:250,34:56:258,42:56:266,58:56:226,66:56:234,274:56:442,282:56:450,298:56:466,306:56:474,314:56:482,322:56:490,458]； [-490:56:-266,-482:56:-258,-474:56:-250,-466:56:-242,-458,-450:56:-282,-442:56:-274,-234:56:-66,-226:56:-58,-210:56:-42,-202:56:-34,-194:56:-26,-186:56:-18,22:56:246,30:56:254,38:56:262,46:56:270,62:56:230,70:56:238,278:56:446,286:56:454,302:56:470,310:56:478,318:56:486,326:56:494,462]； [-488:56:-264,-480:56:-256,-472:56:-248,-464:56:-240,-456,-448:56:-280,-440:56:-272,-232:56:-64,-224:56:-56,-208:56:-40,-200:56:-32,-192:56:-24,-184:56:-16,24:56:248,32:56:256,40:56:264,48:56:272,64:56:232,72:56:240,280:56:448,288:56:456,304:56:472,312:56:480,320:56:488,328:56:496,464]； [-492:56:-268,-484:56:-260,-476:56:-252,-468:56:-244,-460,-452:56:-284,-444:56:-276,-236:56:-68,-228:56:-60,-212:56:-44,-204:56:-36,-196:56:-28,-188:56:-20,20:56:244,28:56:252,36:56:260,44:56:268,60:56:228,68:56:236,276:56:444,284:56:452,300:56:468,308:56:476,316:56:484,324:56:492,460]； Wherein, [a:c:b] represents a set of subcarrier indices, which includes subcarriers starting from subcarrier index a and ending at subcarrier index b, with a step size of c.

15. The method according to any one of claims 11 to 13, characterized in that, The first resource unit comprises 52 subcarriers, and the index of the subcarriers included in the first resource unit is one of the following: [-495:56:-47,-479:56:-31,-463:56:-71,17:56:465,33:56:481,57:56:449]； [-487:56:-39,-471:56:-23,-455:56:-63,25:56:473,41:56:489,65:56:457]； [-491:56:-43,-475:56:-27,-459:56:-67,21:56:469,37:56:485,61:56:453]； [-483:56:-35,-467:56:-19,-451:56:-59,29:56:477,45:56:493,69:56:461]； [-489:56:-41,-473:56:-25,-457:56:-65,23:56:471,39:56:487,63:56:455]； [-481:56:-33,-465:56:-17,-449:56:-57,31:56:479,47:56:495,71:56:463]； [-493:56:-45,-477:56:-29,-461:56:-69,19:56:467,35:56:483,59:56:451]； [-485:56:-37,-469:56:-21,-453:56:-61,27:56:475,43:56:491,67:56:459]； [-494:56:-46,-478:56:-30,-462:56:-70,18:56:466,34:56:482,58:56:450]； [-486:56:-38,-470:56:-22,-454:56:-62,26:56:474,42:56:490,66:56:458]； [-490:56:-42,-474:56:-26,-458:56:-66,22:56:470,38:56:486,62:56:454]； [-482:56:-34,-466:56:-18,-450:56:-58,30:56:478,46:56:494,70:56:462]； [-488:56:-40,-472:56:-24,-456:56:-64,24:56:472,40:56:488,64:56:456]； [-480:56:-32,-464:56:-16,-448:56:-56,32:56:480,48:56:496,72:56:464]； [-492:56:-44,-476:56:-28,-460:56:-68,20:56:468,36:56:484,60:56:452]； [-484:56:-36,-468:56:-20,-452:56:-60,28:56:476,44:56:492,68:56:460]； Alternatively, the index of the subcarriers included in the first resource unit is one of the following: [-495:56:-271,-479:56:-255,-455:56:-287,-239:56:-71,-215:56:-47,-199:56:-31,17:56:241,33:56:257,57:56:225,273:56:441,297:56:465,313:56:481]； [-487:56:-263,-471:56:-247,-447:56:-279,-231:56:-63,-207:56:-39,-191:56:-23,25:56:249,41:56:265,65:56:233,281:56:449,305:56:473,321:56:489]； [-491:56:-267,-475:56:-251,-451:56:-283,-235:56:-67,-211:56:-43,-195:56:-27,21:56:245,37:56:261,61:56:229,277:56:445,301:56:469,317:56:485]； [-483:56:-259,-467:56:-243,-443:56:-275,-227:56:-59,-203:56:-35,-187:56:-19,29:56:253,45:56:269,69:56:237,285:56:453,309:56:477,325:56:493]； [-489:56:-265,-473:56:-249,-449:56:-281,-233:56:-65,-209:56:-41,-193:56:-25,23:56:247,39:56:263,63:56:231,279:56:447,303:56:471,319:56:487]； [-481:56:-257,-465:56:-241,-441:56:-273,-225:56:-57,-201:56:-33,-185:56:-17,31:56:255,47:56:271,71:56:239,287:56:455,311:56:479,327:56:495]； [-493:56:-269,-477:56:-253,-453:56:-285,-237:56:-69,-213:56:-45,-197:56:-29,19:56:243,35:56:259,59:56:227,275:56:443,299:56:467,315:56:483]； [-485:56:-261,-469:56:-245,-445:56:-277,-229:56:-61,-205:56:-37,-189:56:-21,27:56:251,43:56:267,67:56:235,283:56:451,307:56:475,323:56:491]； [-494:56:-270,-478:56:-254,-454:56:-286,-238:56:-70,-214:56:-46,-198:56:-30,18:56:242,34:56:258,58:56:226,274:56:442,298:56:466,314:56:482]； [-486:56:-262,-470:56:-246,-446:56:-278,-230:56:-62,-206:56:-38,-190:56:-22,26:56:250,42:56:266,66:56:234,282:56:450,306:56:474,322:56:490]； [-490:56:-266,-474:56:-250,-450:56:-282,-234:56:-66,-210:56:-42,-194:56:-26,22:56:246,38:56:262,62:56:230,278:56:446,302:56:470,318:56:486]； [-482:56:-258,-466:56:-242,-442:56:-274,-226:56:-58,-202:56:-34,-186:56:-18,30:56:254,46:56:270,70:56:238,286:56:454,310:56:478,326:56:494]； [-488:56:-264,-472:56:-248,-448:56:-280,-232:56:-64,-208:56:-40,-192:56:-24,24:56:248,40:56:264,64:56:232,280:56:448,304:56:472,320:56:488]； [-480:56:-256,-464:56:-240,-440:56:-272,-224:56:-56,-200:56:-32,-184:56:-16,32:56:256,48:56:272,72:56:240,288:56:456,312:56:480,328:56:496]； [-492:56:-268,-476:56:-252,-452:56:-284,-236:56:-68,-212:56:-44,-196:56:-28,20:56:244,36:56:260,60:56:228,276:56:444,300:56:468,316:56:484]； [-484:56:-260,-468:56:-244,-444:56:-276,-228:56:-60,-204:56:-36,-188:56:-20,28:56:252,44:56:268,68:56:236,284:56:452,308:56:476,324:56:492]； Wherein, [a:c:b] represents a set of subcarrier indices, which includes subcarriers starting from subcarrier index a and ending at subcarrier index b, with a step size of c.

16. A communication device, characterized in that, Includes units or modules for performing the method as described in any one of claims 1 to 15.

17. A communication device, characterized in that, Includes a processor for executing a computer program or instructions stored in a memory to cause the communication device to perform the method as described in any one of claims 1 to 15.

18. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program or instructions that, when executed on a communication device, cause the communication device to perform the method as described in any one of claims 1 to 15.

19. A computer program product, characterized in that, The computer program product includes a computer program or instructions for performing the method as described in any one of claims 1 to 15.

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