Communication method, device and system

Abstract

The invention provides a communication method, device and system, relates to the field of wireless communication, in particular to a high-frequency large-bandwidth scene in a wireless communication system, and is used for avoiding spectrum resource waste caused by transmission waiting and improving communication efficiency. The method may include transmitting or receiving a first transmission on at least one first symbol; the first time unit is composed of a plurality of first symbols, the number of the first symbols contained in the first time unit is N, the N is equal to the product of at least three prime numbers, the duration of the first time unit is 1 divided by 2u milliseconds, N is a positive integer, u is a positive integer, and u is smaller than or equal to 8.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communications, and more specifically, to a communication method, device, and system. Background Art

[0002] As cellular mobile communications are deployed towards high frequencies and even sub 100 GHz, spectrum bandwidth has been greatly improved, reaching above 1 GHz or even 10 GHz. The design of air interfaces at such high frequencies and high bandwidths requires consideration of many aspects.

[0003] On the one hand, the design of the fifth generation (5th Generation, 5G) mobile communication system can be reused to use a larger subcarrier spacing to combat higher phase noise; on the other hand, by using a larger subcarrier spacing, a wider bandwidth can be covered with a limited number of subcarriers. For example, the current 5G limits the number of subcarriers of a single carrier to 3300, and a subcarrier spacing of 1.92MHz can cover a bandwidth of about 6GHz. How to design symbols in the time domain so that better transmission can be performed when the bandwidth is larger and the subcarrier spacing is larger is a problem that needs to be solved. Summary of the invention

[0004] The present application provides a communication method, apparatus and system, which can avoid the waste of spectrum resources caused by transmission waiting when a terminal device transmits in a large bandwidth scenario, and improve communication efficiency.

[0005] In a first aspect, a communication method is provided, which can be executed by a terminal device, or by a component of the terminal device (such as a chip or circuit), or by a network device, or by a component of the network device (such as a chip or circuit), and this application does not limit this. For ease of description, the following is an example of execution by a terminal device.

[0006] The method may include: sending or receiving a first transmission on at least one first symbol; wherein the at least one first symbol is located in a first time unit, the first time unit is composed of a plurality of first symbols, the number of first symbols contained in the first time unit is N, the N is equal to at least 3 prime numbers multiplied together, and the duration of the first time unit is 1 divided by 2 u milliseconds, N is a positive integer, u is a positive integer, and u is less than or equal to 8.

[0007] The above scheme allows the terminal device to transmit with as many prime numbers of symbols as possible in a time unit, thereby making scheduling simpler, that is, if the terminal device is scheduled with a certain length in the time unit, if the prime number of the symbols in the time unit is large, the scheduled length is likely to be divisible by the number of symbols in the time unit, and the scheduling result is an integer number of scheduling opportunities. This ensures that in large bandwidth scenarios, spectrum resources can be better utilized, avoiding transmission being restricted by the boundaries of time units, resulting in waste of spectrum resources, and improving communication efficiency.

[0008] In one possible design, the cyclic prefix length of the multiple first symbols is a first length multiplied by a second time unit or a second length multiplied by a second time unit; wherein the first length and the second length are both integer multiples of one of 16, 32, 64, 128 or 256, the first length and the second length are not equal, the second time unit is m / (first subcarrier spacing*first numerical value), the first subcarrier spacing is one of 480kHz, 960kHz, 1920kHz, 3840kHz or 7680kHz, the first numerical value is one of 2048, 4096, 8192, 16384 or 32768, and m is 1 or a positive integer.

[0009] In one possible design, the number of second symbols in the first time unit is N1, the number of third symbols in the first time unit is N2, the second symbol is a symbol whose cyclic prefix length is the first length multiplied by the second time unit among the multiple first symbols, and the third symbol is a symbol whose cyclic prefix length is the second length multiplied by the second time unit among the multiple first symbols, wherein N1 and N2 are integers greater than or equal to zero.

[0010] By configuring two symbols with different cyclic prefix lengths in the first time unit, the transmission can adapt to more scenarios. Different cyclic prefix lengths can be used for data transmission and sensing functions at different distances.

[0011] In one possible design, the number of second symbols in the first time unit is N1, and the second symbol is a symbol among the multiple first symbols whose cyclic prefix length is the first length multiplied by the second time unit, where N1 is an integer greater than or equal to zero.

[0012] In one possible design, the number of third symbols in the first time unit is N2, and the third symbol is a symbol among the multiple first symbols whose cyclic prefix length is the second length multiplied by the second time unit, where N2 is an integer greater than or equal to zero.

[0013] In this case, the cyclic prefix lengths of the symbols in the first time unit are the same value, which facilitates unified scheduling in a fixed scenario.

[0014] In a possible design, the first N1 consecutive symbols in the first time unit are the second symbol, and the last N2 consecutive symbols in the first time unit are the third symbol.

[0015] This allows symbols with the same cyclic prefix length to be placed together, which is suitable for centralized transmission in different scenarios.

[0016] In one possible design, the first N3 consecutive symbols in the first time unit are the second symbol, the last N4 consecutive symbols in the first time unit are the second symbol, and the N2 third symbols are consecutive in the first time unit, where N3+N4=N1.

[0017] In this way, symbols with the same cyclic prefix length, long or short, can be placed together, which is suitable for centralized transmission in some scenarios.

[0018] In one possible design, the first time unit is composed of a continuous third time unit, the first symbol of the third time unit is the second symbol, and the remaining symbols of the third time unit are floor(N1 / N2) third symbols, where floor means rounding down and N1 is greater than N2.

[0019] In one possible design, the first time unit is composed of a continuous third time unit, the first symbol of the third time unit is the third symbol, and the remaining symbols of the third time unit are floor(N2 / N1) second symbols, where floor means rounding down, and N2 is greater than N1.

[0020] This allows symbols of different cyclic prefix lengths to be spaced apart, which is suitable for different scenarios where the transmission time is short.

[0021] In one possible design, the first length multiplied by the second time unit is greater than 50 nanoseconds; the second length multiplied by the second time unit is greater than 50 nanoseconds.

[0022] In this way, the cyclic prefix length can meet the requirements of high-frequency multipath delay, thereby improving system performance.

[0023] In one possible design, the first length is one of 208, 256, 272, 288, 320, 352, 368, 384, 448, 512, 576, 608, 624, 640, 704, 720, 768, 800, 816, 832, 864, 896, 912, 1024, 1088, 1104, 1120, 1152, 1216 or 1232.

[0024] In one possible design, N1 is one of 142, 163, 140, 174, 138, 129, 192, 150, 173, 124, 160, 178, 168, 183, 141, 120, 159, 180, 190, 195, 170, 185, 186, 144, 189, 171, 128, 188, 198, 203, 136, 172, 199, 164, 112, 204, 210, 213, 156, 132, 205, 130, 175, 208, 216, 220, 222, 223, 165 or 201.

[0025] In one possible design, the second length is one of 224, 240, 272, 288, 304, 320, 352, 384, 400, 416, 432, 448, 464, 480, 512, 544, 576, 592, 608, 640, 656, 672, 688, 704, 736, 752, 768, 784, 800, 832, 848, 864, 880, 896, 928, 944, 960, 976, 1024, 1040, 1056, 1088, 1120, 1136, 1152, 1184, 1216, 1248, 1264, 1280, 1296, 1312, 1344 or 1360.

[0026] In one possible design, N2 is one of 168, 176, 136, 160, 102, 51, 120, 92, 144, 116, 156, 114, 138, 132, 192, 140, 180, 200, 128 or 108.

[0027] In one possible design, the second length is one of 208, 256, 272, 288, 320, 352, 368, 384, 448, 512, 576, 608, 624, 640, 704, 720, 768, 800, 816, 832, 864, 896, 912, 1024, 1088, 1104, 1120, 1152, 1216 or 1232.

[0028] In one possible design, the N2 is one of 142, 163, 140, 174, 138, 129, 192, 150, 173, 124, 160, 178, 168, 183, 141, 120, 159, 180, 190, 195, 170, 185, 186, 144, 189, 171, 128, 188, 198, 203, 136, 172, 199, 164, 112, 204, 210, 213, 156, 132, 205, 130, 175, 208, 216, 220, 222, 223, 165 or 201.

[0029] In one possible design, the first length is one of 224, 240, 272, 288, 304, 320, 352, 384, 400, 416, 432, 448, 464, 480, 512, 544, 576, 592, 608, 640, 656, 672, 688, 704, 736, 752, 768, 784, 800, 832, 848, 864, 880, 896, 928, 944, 960, 976, 1024, 1040, 1056, 1088, 1120, 1136, 1152, 1184, 1216, 1248, 1264, 1280, 1296, 1312, 1344 or 1360.

[0030] In one possible design, N1 is one of 168, 176, 136, 160, 102, 51, 120, 92, 144, 116, 156, 114, 138, 132, 192, 140, 180, 200, 128 or 108.

[0031] In one possible design, N1 is 80, N2 is 120, the first length is 800, and the second length is 832; or, N1 is 80, N2 is 120, the first length is 512, and the second length is 1024.

[0032] In a second aspect, a communication method is provided, which can be executed by a terminal device, or by a component of a terminal device (such as a chip or circuit), or by a network device, or by a component of a network device (such as a chip or circuit), and this application does not limit this. For ease of description, the following is an example of execution by a network device.

[0033] The method may include: receiving or sending a first transmission on at least one first symbol; wherein the at least one first symbol is located in a first time unit, the first time unit is composed of multiple first symbols, the number of first symbols contained in the first time unit is N, and N is equal to the product of at least 3 prime numbers, and N is a positive integer.

[0034] The above scheme allows the terminal device to transmit with as many prime factors as possible in the number of symbols in a time unit, thus making scheduling simpler, that is, if the terminal device is scheduled with a length of a certain factor, then the scheduling result is an integer number of scheduling opportunities. This ensures that spectrum resources can be better utilized in large bandwidth scenarios, avoids transmission being restricted by the boundaries of time units, causes spectrum resource waste, and improves communication efficiency.

[0035] In one possible design, the duration of the first time unit is 1 divided by 2. u milliseconds, u is a positive integer, and u is less than or equal to 8.

[0036] By adopting the above method, it is possible to avoid the duration of the first time unit being too short.

[0037] In one possible design, the cyclic prefix length of the multiple first symbols is a first length multiplied by a second time unit or a second length multiplied by a second time unit; wherein the first length and the second length are both integer multiples of one of 16, 32, 64, 128 or 256, the first length and the second length are not equal, the second time unit is m / (first subcarrier spacing*first numerical value), the first subcarrier spacing is one of 480kHz, 960kHz, 1920kHz, 3840kHz or 7680kHz, the first numerical value is one of 2048, 4096, 8192, 16384 or 32768, and m is 1 or a positive integer.

[0038] In one possible design, the number of second symbols in the first time unit is N1, the number of third symbols in the first time unit is N2, the second symbol is a symbol whose cyclic prefix length is the first length multiplied by the second time unit among the multiple first symbols, and the third symbol is a symbol whose cyclic prefix length is the second length multiplied by the second time unit among the multiple first symbols, wherein N1 and N2 are integers greater than or equal to zero.

[0039] By configuring two symbols with different cyclic prefix lengths in the first time unit, the transmission can adapt to more scenarios. Different cyclic prefix lengths can be used for data transmission and sensing functions at different distances.

[0040] In one possible design, the number of second symbols in the first time unit is N1, and the second symbol is a symbol among the multiple first symbols whose cyclic prefix length is the first length multiplied by the second time unit, where N1 is an integer greater than or equal to zero.

[0041] In one possible design, the number of third symbols in the first time unit is N2, and the third symbol is a symbol among the multiple first symbols whose cyclic prefix length is the second length multiplied by the second time unit, where N2 is an integer greater than or equal to zero.

[0042] In this case, the cyclic prefix lengths of the symbols in the first time unit are the same value, which facilitates unified scheduling in a fixed scenario.

[0043] In a possible design, the first N1 consecutive symbols in the first time unit are the second symbol, and the last N2 consecutive symbols in the first time unit are the third symbol.

[0044] This allows symbols with the same cyclic prefix length to be placed together, which is suitable for centralized transmission in different scenarios.

[0045] In one possible design, the first N3 consecutive symbols in the first time unit are the second symbol, the last N4 consecutive symbols in the first time unit are the second symbol, and the N2 third symbols are consecutive in the first time unit, where N3+N4=N1.

[0046] In this way, symbols with the same cyclic prefix length, long or short, can be placed together, which is suitable for centralized transmission in some scenarios.

[0047] In one possible design, the first time unit is composed of a continuous third time unit, the first symbol of the third time unit is the second symbol, and the remaining symbols of the third time unit are floor(N1 / N2) third symbols, where floor means rounding down and N1 is greater than N2.

[0048] In one possible design, the first time unit is composed of a continuous third time unit, the first symbol of the third time unit is the third symbol, and the remaining symbols of the third time unit are floor(N2 / N1) second symbols, where floor means rounding down, and N2 is greater than N1.

[0049] This allows symbols of different cyclic prefix lengths to be spaced apart, which is suitable for different scenarios where the transmission time is short.

[0050] In one possible design, the first length multiplied by the second time unit is greater than 50 nanoseconds; the second length multiplied by the second time unit is greater than 50 nanoseconds.

[0051] In this way, the cyclic prefix length can meet the requirements of high-frequency multipath delay, thereby improving system performance.

[0052] In one possible design, the first length is one of 208, 256, 272, 288, 320, 352, 368, 384, 448, 512, 576, 608, 624, 640, 704, 720, 768, 800, 816, 832, 864, 896, 912, 1024, 1088, 1104, 1120, 1152, 1216 or 1232.

[0053] In one possible design, N1 is one of 142, 163, 140, 174, 138, 129, 192, 150, 173, 124, 160, 178, 168, 183, 141, 120, 159, 180, 190, 195, 170, 185, 186, 144, 189, 171, 128, 188, 198, 203, 136, 172, 199, 164, 112, 204, 210, 213, 156, 132, 205, 130, 175, 208, 216, 220, 222, 223, 165 or 201.

[0054] In one possible design, the second length is one of 224, 240, 272, 288, 304, 320, 352, 384, 400, 416, 432, 448, 464, 480, 512, 544, 576, 592, 608, 640, 656, 672, 688, 704, 736, 752, 768, 784, 800, 832, 848, 864, 880, 896, 928, 944, 960, 976, 1024, 1040, 1056, 1088, 1120, 1136, 1152, 1184, 1216, 1248, 1264, 1280, 1296, 1312, 1344 or 1360.

[0055] In one possible design, N2 is one of 168, 176, 136, 160, 102, 51, 120, 92, 144, 116, 156, 114, 138, 132, 192, 140, 180, 200, 128 or 108.

[0056] In one possible design, the second length is one of 208, 256, 272, 288, 320, 352, 368, 384, 448, 512, 576, 608, 624, 640, 704, 720, 768, 800, 816, 832, 864, 896, 912, 1024, 1088, 1104, 1120, 1152, 1216 or 1232.

[0057] In one possible design, the N2 is one of 142, 163, 140, 174, 138, 129, 192, 150, 173, 124, 160, 178, 168, 183, 141, 120, 159, 180, 190, 195, 170, 185, 186, 144, 189, 171, 128, 188, 198, 203, 136, 172, 199, 164, 112, 204, 210, 213, 156, 132, 205, 130, 175, 208, 216, 220, 222, 223, 165 or 201.

[0058] In one possible design, the first length is one of 224, 240, 272, 288, 304, 320, 352, 384, 400, 416, 432, 448, 464, 480, 512, 544, 576, 592, 608, 640, 656, 672, 688, 704, 736, 752, 768, 784, 800, 832, 848, 864, 880, 896, 928, 944, 960, 976, 1024, 1040, 1056, 1088, 1120, 1136, 1152, 1184, 1216, 1248, 1264, 1280, 1296, 1312, 1344 or 1360.

[0059] In one possible design, N1 is one of 168, 176, 136, 160, 102, 51, 120, 92, 144, 116, 156, 114, 138, 132, 192, 140, 180, 200, 128 or 108.

[0060] In one possible design, N1 is 80, N2 is 120, the first length is 800, and the second length is 832; or, N1 is 80, N2 is 120, the first length is 512, and the second length is 1024.

[0061] In a third aspect, a communication method is provided, which can be executed by a terminal device, or by a component of a terminal device (such as a chip or circuit), or by a network device, or by a component of a network device (such as a chip or circuit), and this application does not limit this. For ease of description, the following description is taken as an example of execution by a terminal device.

[0062] The method may include: sending or receiving a first transmission on at least one first symbol; wherein the at least one first symbol is located in a first time unit, the first time unit is composed of a plurality of first symbols, the number of first symbols contained in the first time unit is N, the N is one of 184, 189, 192, 196, 198, 200, 204, 208, 210, 216, 220, 224, 225 or 228, and the duration of the first time unit is 1 divided by 2 u milliseconds, where u is a positive integer less than or equal to 8.

[0063] The above scheme sets N to a specific value so that when the terminal device transmits, the prime factors of the number of symbols in a time unit are as many as possible, thereby making scheduling simpler, that is, if the terminal device is scheduled with a length of a certain factor, then the scheduling result is an integer number of scheduling opportunities. This ensures that in large bandwidth scenarios, spectrum resources can be better utilized, avoiding transmission being restricted by the boundaries of time units, resulting in spectrum resource waste, and improving communication efficiency.

[0064] In one possible design, the cyclic prefix length of the multiple first symbols is a first length multiplied by a second time unit or a second length multiplied by a second time unit; wherein the first length and the second length are both integer multiples of one of 16, 32, 64, 128 or 256, the first length and the second length are not equal, the second time unit is m / (first subcarrier spacing*first numerical value), the first subcarrier spacing is one of 480kHz, 960kHz, 1920kHz, 3840kHz or 7680kHz, the first numerical value is one of 2048, 4096, 8192, 16384 or 32768, and m is 1 or a positive integer.

[0065] In one possible design, the number of second symbols in the first time unit is N1, the number of third symbols in the first time unit is N2, the second symbol is a symbol whose cyclic prefix length is the first length multiplied by the second time unit among the multiple first symbols, and the third symbol is a symbol whose cyclic prefix length is the second length multiplied by the second time unit among the multiple first symbols, wherein N1 and N2 are integers greater than or equal to zero.

[0066] By configuring two symbols with different cyclic prefix lengths in the first time unit, the transmission can adapt to more scenarios. Different cyclic prefix lengths can be used for data transmission and sensing functions at different distances.

[0067] In one possible design, the number of second symbols in the first time unit is N1, and the second symbol is a symbol among the multiple first symbols whose cyclic prefix length is the first length multiplied by the second time unit, where N1 is an integer greater than or equal to zero.

[0068] In one possible design, the number of third symbols in the first time unit is N2, and the third symbol is a symbol among the multiple first symbols whose cyclic prefix length is the second length multiplied by the second time unit, where N2 is an integer greater than or equal to zero.

[0069] In this case, the cyclic prefix lengths of the symbols in the first time unit are the same value, which facilitates unified scheduling in a fixed scenario.

[0070] In one possible design, the first N1 consecutive symbols in the first time unit are the second symbol, and the last N2 consecutive symbols in the first time unit are the third symbol.

[0071] This allows symbols with the same cyclic prefix length to be placed together, which is suitable for centralized transmission in different scenarios.

[0072] In one possible design, the first N3 consecutive symbols in the first time unit are the second symbol, the last N4 consecutive symbols in the first time unit are the second symbol, and the N2 third symbols are consecutive in the first time unit, where N3+N4=N1.

[0073] In this way, symbols with the same cyclic prefix length, long or short, can be placed together, which is suitable for centralized transmission in some scenarios.

[0074] In one possible design, the first time unit is composed of a continuous third time unit, the first symbol of the third time unit is the second symbol, and the remaining symbols of the third time unit are floor(N1 / N2) third symbols, where floor means rounding down and N1 is greater than N2.

[0075] In one possible design, the first time unit is composed of a continuous third time unit, the first symbol of the third time unit is the third symbol, and the remaining symbols of the third time unit are floor(N2 / N1) second symbols, where floor means rounding down, and N2 is greater than N1.

[0076] This allows symbols of different cyclic prefix lengths to be spaced apart, which is suitable for different scenarios where the transmission time is short.

[0077] In one possible design, the first length multiplied by the second time unit is greater than 50 nanoseconds; the second length multiplied by the second time unit is greater than 50 nanoseconds.

[0078] In this way, the cyclic prefix length can meet the requirements of high-frequency multipath delay, thereby improving system performance.

[0079] In one possible design, the first length is one of 208, 256, 272, 288, 320, 352, 368, 384, 448, 512, 576, 608, 624, 640, 704, 720, 768, 800, 816, 832, 864, 896, 912, 1024, 1088, 1104, 1120, 1152, 1216 or 1232.

[0080] In one possible design, N1 is one of 142, 163, 140, 174, 138, 129, 192, 150, 173, 124, 160, 178, 168, 183, 141, 120, 159, 180, 190, 195, 170, 185, 186, 144, 189, 171, 128, 188, 198, 203, 136, 172, 199, 164, 112, 204, 210, 213, 156, 132, 205, 130, 175, 208, 216, 220, 222, 223, 165 or 201.

[0081] In one possible design, the second length is one of 224, 240, 272, 288, 304, 320, 352, 384, 400, 416, 432, 448, 464, 480, 512, 544, 576, 592, 608, 640, 656, 672, 688, 704, 736, 752, 768, 784, 800, 832, 848, 864, 880, 896, 928, 944, 960, 976, 1024, 1040, 1056, 1088, 1120, 1136, 1152, 1184, 1216, 1248, 1264, 1280, 1296, 1312, 1344 or 1360.

[0082] In one possible design, N2 is one of 168, 176, 136, 160, 102, 51, 120, 92, 144, 116, 156, 114, 138, 132, 192, 140, 180, 200, 128 or 108.

[0083] In one possible design, the second length is one of 208, 256, 272, 288, 320, 352, 368, 384, 448, 512, 576, 608, 624, 640, 704, 720, 768, 800, 816, 832, 864, 896, 912, 1024, 1088, 1104, 1120, 1152, 1216 or 1232.

[0084] In one possible design, the N2 is one of 142, 163, 140, 174, 138, 129, 192, 150, 173, 124, 160, 178, 168, 183, 141, 120, 159, 180, 190, 195, 170, 185, 186, 144, 189, 171, 128, 188, 198, 203, 136, 172, 199, 164, 112, 204, 210, 213, 156, 132, 205, 130, 175, 208, 216, 220, 222, 223, 165 or 201.

[0085] In one possible design, the first length is one of 224, 240, 272, 288, 304, 320, 352, 384, 400, 416, 432, 448, 464, 480, 512, 544, 576, 592, 608, 640, 656, 672, 688, 704, 736, 752, 768, 784, 800, 832, 848, 864, 880, 896, 928, 944, 960, 976, 1024, 1040, 1056, 1088, 1120, 1136, 1152, 1184, 1216, 1248, 1264, 1280, 1296, 1312, 1344 or 1360.

[0086] In one possible design, N1 is one of 168, 176, 136, 160, 102, 51, 120, 92, 144, 116, 156, 114, 138, 132, 192, 140, 180, 200, 128 or 108.

[0087] In one possible design, N1 is 80, N2 is 120, the first length is 800, and the second length is 832; or, N1 is 80, N2 is 120, the first length is 512, and the second length is 1024.

[0088] In a fourth aspect, a communication method is provided, which can be executed by a terminal device, or by a component of a terminal device (such as a chip or circuit), or by a network device, or by a component of a network device (such as a chip or circuit), and this application does not limit this. For ease of description, the following is an example of execution by a network device.

[0089] The method may include: receiving or sending a first transmission on at least one first symbol; wherein the at least one first symbol is located in a first time unit, the first time unit is composed of multiple first symbols, the number of first symbols contained in the first time unit is N, and the N is one of 184, 189, 192, 196, 198, 200, 204, 208, 210, 216, 220, 224, 225 or 228.

[0090] The above scheme sets N to a specific value so that when the terminal device transmits, the prime factors of the number of symbols in a time unit are as many as possible, thereby making scheduling simpler, that is, if the terminal device is scheduled with a length of a certain factor, then the scheduling result is an integer number of scheduling opportunities. This ensures that in large bandwidth scenarios, spectrum resources can be better utilized, avoiding transmission being restricted by the boundaries of time units, resulting in spectrum resource waste, and improving communication efficiency.

[0091] In one possible design, the duration of the first time unit is 1 divided by 2. u milliseconds, u is a positive integer, and u is less than or equal to 8.

[0092] By adopting the above method, it is possible to avoid the duration of the first time unit being too short.

[0093] In one possible design, the cyclic prefix length of the multiple first symbols is a first length multiplied by a second time unit or a second length multiplied by a second time unit; wherein the first length and the second length are both integer multiples of one of 16, 32, 64, 128 or 256, the first length and the second length are not equal, the second time unit is m / (first subcarrier spacing*first numerical value), the first subcarrier spacing is one of 480kHz, 960kHz, 1920kHz, 3840kHz or 7680kHz, the first numerical value is one of 2048, 4096, 8192, 16384 or 32768, and m is 1 or a positive integer.

[0094] In one possible design, the number of second symbols in the first time unit is N1, the number of third symbols in the first time unit is N2, the second symbol is a symbol whose cyclic prefix length is the first length multiplied by the second time unit among the multiple first symbols, and the third symbol is a symbol whose cyclic prefix length is the second length multiplied by the second time unit among the multiple first symbols, wherein N1 and N2 are integers greater than or equal to zero.

[0095] By configuring two symbols with different cyclic prefix lengths in the first time unit, the transmission can adapt to more scenarios. Different cyclic prefix lengths can be used for data transmission and sensing functions at different distances.

[0096] In one possible design, the number of second symbols in the first time unit is N1, and the second symbol is a symbol among the multiple first symbols whose cyclic prefix length is the first length multiplied by the second time unit, where N1 is an integer greater than or equal to zero.

[0097] In one possible design, the number of third symbols in the first time unit is N2, and the third symbol is a symbol among the multiple first symbols whose cyclic prefix length is the second length multiplied by the second time unit, where N2 is an integer greater than or equal to zero.

[0098] In this case, the cyclic prefix lengths of the symbols in the first time unit are the same value, which facilitates unified scheduling in a fixed scenario.

[0099] In a possible design, the first N1 consecutive symbols in the first time unit are the second symbol, and the last N2 consecutive symbols in the first time unit are the third symbol.

[0100] This allows symbols with the same cyclic prefix length to be placed together, which is suitable for centralized transmission in different scenarios.

[0101] In one possible design, the first N3 consecutive symbols in the first time unit are the second symbol, the last N4 consecutive symbols in the first time unit are the second symbol, and the N2 third symbols are consecutive in the first time unit, where N3+N4=N1.

[0102] In this way, symbols with the same cyclic prefix length, long or short, can be placed together, which is suitable for centralized transmission in some scenarios.

[0103] In one possible design, the first time unit is composed of a continuous third time unit, the first symbol of the third time unit is the second symbol, and the remaining symbols of the third time unit are floor(N1 / N2) third symbols, where floor means rounding down and N1 is greater than N2.

[0104] In one possible design, the first time unit is composed of a continuous third time unit, the first symbol of the third time unit is the third symbol, and the remaining symbols of the third time unit are floor(N2 / N1) second symbols, where floor means rounding down, and N2 is greater than N1.

[0105] This allows symbols of different cyclic prefix lengths to be spaced apart, which is suitable for different scenarios where the transmission time is short.

[0106] In one possible design, the first length multiplied by the second time unit is greater than 50 nanoseconds; the second length multiplied by the second time unit is greater than 50 nanoseconds.

[0107] In this way, the cyclic prefix length can meet the requirements of high-frequency multipath delay, thereby improving system performance.

[0108] In one possible design, the first length is one of 208, 256, 272, 288, 320, 352, 368, 384, 448, 512, 576, 608, 624, 640, 704, 720, 768, 800, 816, 832, 864, 896, 912, 1024, 1088, 1104, 1120, 1152, 1216 or 1232.

[0109] In one possible design, N1 is one of 142, 163, 140, 174, 138, 129, 192, 150, 173, 124, 160, 178, 168, 183, 141, 120, 159, 180, 190, 195, 170, 185, 186, 144, 189, 171, 128, 188, 198, 203, 136, 172, 199, 164, 112, 204, 210, 213, 156, 132, 205, 130, 175, 208, 216, 220, 222, 223, 165 or 201.

[0110] In one possible design, the second length is one of 224, 240, 272, 288, 304, 320, 352, 384, 400, 416, 432, 448, 464, 480, 512, 544, 576, 592, 608, 640, 656, 672, 688, 704, 736, 752, 768, 784, 800, 832, 848, 864, 880, 896, 928, 944, 960, 976, 1024, 1040, 1056, 1088, 1120, 1136, 1152, 1184, 1216, 1248, 1264, 1280, 1296, 1312, 1344 or 1360.

[0111] In one possible design, N2 is one of 168, 176, 136, 160, 102, 51, 120, 92, 144, 116, 156, 114, 138, 132, 192, 140, 180, 200, 128 or 108.

[0112] In one possible design, the second length is one of 208, 256, 272, 288, 320, 352, 368, 384, 448, 512, 576, 608, 624, 640, 704, 720, 768, 800, 816, 832, 864, 896, 912, 1024, 1088, 1104, 1120, 1152, 1216 or 1232.

[0113] In one possible design, the N2 is one of 142, 163, 140, 174, 138, 129, 192, 150, 173, 124, 160, 178, 168, 183, 141, 120, 159, 180, 190, 195, 170, 185, 186, 144, 189, 171, 128, 188, 198, 203, 136, 172, 199, 164, 112, 204, 210, 213, 156, 132, 205, 130, 175, 208, 216, 220, 222, 223, 165 or 201.

[0114] In one possible design, the first length is one of 224, 240, 272, 288, 304, 320, 352, 384, 400, 416, 432, 448, 464, 480, 512, 544, 576, 592, 608, 640, 656, 672, 688, 704, 736, 752, 768, 784, 800, 832, 848, 864, 880, 896, 928, 944, 960, 976, 1024, 1040, 1056, 1088, 1120, 1136, 1152, 1184, 1216, 1248, 1264, 1280, 1296, 1312, 1344 or 1360.

[0115] In one possible design, N1 is one of 168, 176, 136, 160, 102, 51, 120, 92, 144, 116, 156, 114, 138, 132, 192, 140, 180, 200, 128 or 108.

[0116] In one possible design, N1 is 80, N2 is 120, the first length is 800, and the second length is 832; or, N1 is 80, N2 is 120, the first length is 512, and the second length is 1024.

[0117] Accordingly, the present application also provides a communication device, which can implement the communication method described in any of the above aspects. For example, the device can be a terminal device or a network device, or other devices capable of implementing the above communication method, which can implement the above method through software, hardware, or hardware executing corresponding software.

[0118] In one possible design, the device may include a processor and a memory. The processor is configured to support the device to perform the corresponding functions of the method described in any one of the above aspects. The memory is used to couple with the processor, and stores the necessary program instructions and data of the device. In addition, the device may also include a communication interface to support communication between the device and other devices. The communication interface may be a transceiver or a transceiver circuit.

[0119] On the other hand, an embodiment of the present application provides a communication system, which includes the communication device described in the above aspects.

[0120] Another aspect of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores instructions, and when the computer-readable storage medium is run on a computer, the computer executes the methods described in the above aspects.

[0121] Another aspect of the present application provides a computer program product comprising instructions, which, when executed on a computer, enables the computer to execute the methods described in the above aspects.

[0122] The present application also provides a chip system, which includes a processor and may also include a memory, for implementing the method described in any of the above aspects.

[0123] Any of the above-mentioned devices, computer storage media, computer program products, chip systems, or communication systems are used to execute the corresponding methods provided above. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding schemes in the corresponding methods provided above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0124] Figure 1 It is a schematic diagram of a wireless communication system provided in an embodiment of the present application.

[0125] Figure 2 This is a schematic diagram of an OFDM symbol provided in an embodiment of the present application.

[0126] Figure 3 It is an interactive schematic diagram of a communication method provided in an embodiment of the present application.

[0127] Figure 4 It is a schematic diagram of multiple first time units provided in an embodiment of the present application.

[0128] Figure 5 This is a schematic diagram of symbol positions within a first time unit provided in an embodiment of the present application.

[0129] Figure 6 A schematic diagram of a communication device provided in an embodiment of the present application.

[0130] Figure 7 A schematic diagram of another communication device provided in an embodiment of the present application.

[0131] Figure 8 A schematic diagram of another communication device provided in an embodiment of the present application.

[0132] Fig. 9 A schematic diagram of a communication system provided for an embodiment of the present application. DETAILED DESCRIPTION

[0133] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0134] Figure 1 FIG. 1 is a schematic diagram showing a possible, non-limiting system. Figure 1As shown, the communication system 1000 includes a radio access network (RAN) 100 and a core network (CN) 200. The RAN 100 includes at least one RAN node (e.g. Figure 1 110a and 110b, collectively referred to as 110) and at least one terminal (such as Figure 1 RAN 100 may also include other RAN nodes, such as wireless relay equipment and / or wireless backhaul equipment ( Figure 1 The terminal 120 is connected to the RAN node 110 in a wireless manner. The RAN node 110 is connected to the core network 200 in a wireless or wired manner. The core network device in the core network 200 and the RAN node 110 in the RAN 100 may be different physical devices, or may be the same physical device that integrates the core network logical function and the radio access network logical function.

[0135] RAN 100 may be a cellular system related to the third generation partnership project (3GPP), for example, a 4G, 5G mobile communication system, or a future evolution system (for example, a 6G mobile communication system). RAN 100 may also be an open access network (open RAN, O-RAN or ORAN), a cloud radio access network (cloud radio access network, CRAN), or a wireless fidelity (wireless fidelity, WiFi) system. RAN 100 may also be a communication system that integrates two or more of the above systems.

[0136] The RAN node 110, which may also be sometimes referred to as an access network device, a RAN entity or an access node, constitutes a part of the communication system to help the terminal achieve wireless access. The multiple RAN nodes 110 in the communication system 1000 may be nodes of the same type or nodes of different types. In some scenarios, the roles of the RAN node 110 and the terminal 120 are relative, for example, Figure 1 The network element 120i may be a helicopter or a drone, which may be configured as a mobile base station. For the terminals 120j that access the RAN 100 through the network element 120i, the network element 120i is a base station; but for the base station 110a, the network element 120i is a terminal. The RAN node 110 and the terminal 120 are sometimes referred to as communication devices, for example Figure 1 The network elements 110a and 110b may be understood as communication devices having base station functions, and the network elements 120a-120j may be understood as communication devices having terminal functions.

[0137] In one possible scenario, a RAN node may be a network device, a base station, an evolved NodeB (eNodeB), an access point (AP), a transmission reception point (TRP), a next generation NodeB (gNB), a next generation base station in a sixth generation (6G) mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system. A RAN node may be a macro base station (e.g. Figure 1 110a in), micro base stations or indoor stations (such as Figure 1 110b in the example above), a relay node or a donor node, or a wireless controller in a CRAN scenario. Optionally, the RAN node may also be a server, a wearable device, a vehicle or an onboard device, etc. For example, the access network device in the vehicle to everything (V2X) technology may be a road side unit (RSU).

[0138] In another possible scenario, multiple RAN nodes collaborate to assist the terminal in achieving wireless access, and different RAN nodes respectively implement part of the functions of the base station. For example, the RAN node can be a centralized unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU). The CU and DU can be set separately, or can also be included in the same network element, such as a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, such as a remote radio unit (RRU), an active antenna unit (AAU) or a remote radio head (RRH).

[0139] In different systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, CU may also be called O-CU (open CU), DU may also be called O-DU, CU-CP may also be called O-CU-CP, CU-UP may also be called O-CU-UP, and RU may also be called O-RU. For the convenience of description, CU, CU-CP, CU-UP, DU and RU are described as examples in this application. Any unit of CU (or CU-CP, CU-UP), DU and RU in this application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0140] The terminal may also be referred to as a terminal device, user equipment (UE), mobile station, mobile terminal, etc. The terminal can be widely used in various scenarios, for example, device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IOT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc. The terminal may be a mobile phone, a tablet computer, a computer with wireless transceiver function, a wearable device, a vehicle, a drone, a helicopter, an airplane, a ship, a robot, a robotic arm, a smart home device, etc. The embodiments of the present application do not limit the device form of the terminal.

[0141] The following is a definition of technical terms that may appear in the embodiments of the present application. The terms used in the implementation method of the present application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application.

[0142] 1. Orthogonal frequency division multiplexing (OFDM) symbol

[0143] The scheduling time unit in the NR data domain is the time slot, and the number of OFDM symbols in a time slot is 14. Although the number of timeslots is fixed, the length of the symbol is related to the subcarrier spacing (SCS), and the symbol lengths corresponding to different SCSs are different. NR supports 5 SCSs, namely 15kHz, 30kHz, 60kHz, 120kHz and 240kHz.

[0144] In NR, OFDM symbols consist of two parts: data symbols and cyclic prefix (CP). Figure 2 As shown, each OFDM symbol consists of a CP and a data symbol, 14 symbols constitute a time slot, and different SCSs correspond to different symbol and time slot lengths. The time slot length corresponding to SCS of 15kHz is 1ms, the time slot length corresponding to SCS of 30kHz is 0.5ms, and the time slot length corresponding to SCS of 120kHz is 0.125ms.

[0145] The data symbol length in an OFDM symbol is determined by the following formula.

[0146]

[0147] The CP length in an OFDM symbol is determined by the following formula.

[0148]

[0149] Where l represents the symbol number, v = log2 (SCS / 15kHz), and k is 64. The above two formulas calculate and You also need to multiply by T c To get their respective durations, T c =1 / (480*10 3 *4096) seconds.

[0150] It can be seen that for normal CP, there are two CP lengths. Assuming that the SCS is 1.92MHz, then v=7. From the above formula, it can be seen that the CP length of the 0th and 896th OFDM symbols is 1096, while the CP length of other OFDM symbols is 72. In this way, the existing design based on NR will cause a large difference in the length of the two CPs. On the one hand, the short CP cannot meet the requirements of high-frequency channel propagation delay, causing inter-symbol interference. On the other hand, NR is based on time slot design, and there are 14 OFDM symbols in each time slot. However, the time slot length containing the 0th and 896th OFDM symbols and other time slot lengths, that is, different time slot lengths may vary, which will bring certain difficulties to the system implementation. On the other hand, the shorter CP length obtained by the above calculation is 72*T c =36.621ns, which is a certain gap compared to the high-frequency multipath delay extension of about 50ns, so it will cause the performance of the OFDM system to deteriorate. On the other hand, low latency is an important aspect of future communications. Due to the existence of time slot boundaries, transmission may be restricted by time slot boundaries, resulting in waiting for the start of the time slot when transmitting key information. How to break the resource scheduling restrictions based on time slot granularity and shorten the scheduling delay is a problem that needs to be solved.

[0151] In order to solve the above problem, an embodiment of the present application provides a communication method, which designs the number of OFDM symbols in a time unit so that the prime number of symbols in one cycle is as large as possible, thereby making scheduling simpler and shortening scheduling delay.

[0152] Figure 3 is a schematic diagram of an example of a communication method provided in an embodiment of the present application. The method can be executed by a terminal device and a network device, or can also be executed by a chip in a terminal device and a chip in a network device. It should be understood that Figure 3 The steps or operations of the communication method are shown, but these steps or operations are only examples. The embodiment of the present application may also perform other operations or Figure 3 The deformation of each operation in the process, or the replacement of reasonable steps.

[0153] S310, the terminal device receives configuration or scheduling information from the network device.

[0154] Correspondingly, the network device sends configuration or scheduling information to the terminal device. The configuration or scheduling information is used to instruct the terminal device to send or receive a first transmission on at least one first symbol.

[0155] Step S310 is an optional step.

[0156] S320, the terminal device sends or receives a first transmission on at least one first symbol.

[0157] Accordingly, the network device receives or sends the first transmission on at least one first symbol. Specifically, the terminal device sends the first transmission to the network device on at least one first symbol, or the terminal device receives the first transmission from the network device on at least one first symbol.

[0158] The at least one first symbol is located in a first time unit, and the first time unit is composed of a plurality of first symbols.

[0159] The number of first symbols included in the first time unit is N, or the first time unit is composed of N consecutive first symbols. N is a positive integer.

[0160] It should be understood that the first time unit is composed of a plurality of first symbols, and the first transmission may be performed on part or all of the plurality of first symbols.

[0161] In a possible implementation, the duration of the first time unit is 1 divided by 2 u milliseconds, where u is a positive integer.

[0162] In one possible implementation, u is less than or equal to 8. Thus, the duration of the first time unit is one of 7.8125us, 15.625us, 31.25us, 62.5us, 125us, 250us, 500us, or 1000us. This prevents the duration of the first time unit from being too short. In another possible implementation, u is zero.

[0163] In a possible implementation, the plurality of first time units are continuously distributed in the time domain, or the plurality of first time units appear periodically in the time domain. Figure 4 In a possible implementation, the number and structure of the first symbols contained in each of the multiple first time units are the same, and the number of first symbols in each of the multiple first time units and the corresponding arrangement can refer to the subsequent description of the first time unit. In a possible implementation, the first time includes one or more scheduling time units. In a possible implementation, the first time unit is a frame, a subframe, or a time slot.

[0164] In a possible implementation, the first symbol is an OFDM symbol.

[0165] There are many possible implementations for determining N.

[0166] Implementation method 1, N is equal to at least 3 prime numbers multiplied together. It should be understood that the at least 3 prime numbers here can be equal or unequal. For example, N can be equal to 2*2*2*23=184. For another example, N can be equal to 2*3*5*7=210.

[0167] When the terminal device is transmitting, if the prime number of the number of symbols in the first time unit is as large as possible, the scheduling can be made simpler. For example, if the terminal device is scheduled for a certain time length in the first time unit, if the prime number of the number of symbols in the first time unit is large, the scheduled time length is very likely to be divisible by the number of symbols in the time unit, then in the first time unit, the scheduling result is an integer number of scheduling opportunities. For example, if the time length of the terminal device scheduled is 3 symbols, if N is 30, so that the prime numbers that make up N include 3, then there can be 10 scheduling opportunities in the first time unit, and no symbols are wasted. This can ensure that in large bandwidth scenarios, spectrum resources can be better utilized, avoid transmission being restricted by the boundaries of time units, cause spectrum resource waste, and improve communication efficiency. If N is 14, then there will be no integer number of scheduling opportunities, and 2 symbols will be wasted.

[0168] Implementation method 2: if N is greater than or equal to 80 and less than or equal to 120, then N is equal to 3 prime numbers multiplied together; or, if N is greater than or equal to 160 and less than or equal to 240, then N is equal to 4 prime numbers multiplied together; or, if N is greater than or equal to 40 and less than or equal to 60, then N is equal to 2 prime numbers multiplied together. For example, N is equal to 3*3*11=99. For another example, N is equal to 2*2*5*11=220. For another example, N is equal to 5*11=55. In this way, if N can be decomposed into as many factors as possible, the first time unit can be divided into smaller time units, making scheduling more flexible and simple.

[0169] In implementation mode 3, N is one of 12, 13 or 14. In this way, if the first time unit can include 15 symbols without considering CP, the value of N can be selected as the number of symbols when considering CP, which takes into account the CP requirement and avoids the CP of each symbol being too long. In addition, the first time unit includes fewer symbols, so the first time unit has a shorter period, which can achieve faster scheduling.

[0170] In implementation mode 4, N is one of 23, 24, 25, 26, 27 or 28. In this way, if the first time unit can include 30 symbols without considering CP, the value of N can be selected as the number of symbols considering CP, which takes into account the CP requirement and avoids the CP of each symbol being too long.

[0171] In implementation mode 5, N is one of 46, 47, 48, 49, 50, 51, 52, 54, 55, 56 or 57. In this way, if the first time unit can include 60 symbols without considering CP, the value of N can be selected as the number of symbols considering CP, which takes into account the CP requirement and avoids the CP of each symbol being too long.

[0172] In implementation mode 6, N is one of 92, 94, 96, 98, 99, 100, 102, 104, 105, 108, 110, 112 or 114. In this way, if the first time unit can include 120 symbols without considering the CP, the value of N can be selected as the number of symbols when considering the CP, which takes into account the CP requirement and avoids the CP of each symbol being too long.

[0173] Implementation method seven, N is one of 184, 189, 192, 196, 198, 200, 204, 208, 210, 216, 220, 224, 225 or 228. In this way, if the first time unit can include 240 symbols without considering CP, the value of N can be selected as the number of symbols considering CP, which takes into account the CP requirement and avoids the CP of each symbol being too long. In addition, when the first time unit includes more symbols, if N can be decomposed into as many factors as possible, the first time unit can be divided into smaller time units, making scheduling more flexible and simple.

[0174] In one possible implementation, the CP lengths of multiple first symbols are divided into two types, one is the first length multiplied by the second time unit, and the other is the second length multiplied by the second time unit. Among them, the first length and the second length are both integer multiples of 16, 32, 64, 128 or 256. The first length and the second length are not equal. In this way, the CP length can be decomposed into as many factors of 2 as possible. In one possible implementation, the difference between the first length and the second length is an integer multiple of 16, 32, 64, 128 or 256. By setting different CP lengths, the system can be adapted to different environments to perform data transmission and perception functions at different distances.

[0175] In a possible implementation, the second time unit is m / (first subcarrier spacing*first value), wherein the first subcarrier spacing is one of 480kHz, 960kHz, 1920kHz, 3840kHz or 7680kHz, the first value is one of 2048, 4096, 8192, 16384 or 32768, and m is 1 or a positive integer. Using a larger subcarrier spacing allows the terminal device to fully utilize a larger bandwidth when operating in a high frequency band while the number of subcarriers remains unchanged.

[0176] It should be understood that the value of the first subcarrier spacing is for the convenience of the terminal device to work at high frequency, and the first subcarrier spacing is not limited to other values. For example, the first subcarrier spacing can be one of 15kHz, 30kHz, 60kHz, 120kHz, 240kHz or 480kHz.

[0177] In a possible implementation, the value of u is determined by using the first subcarrier spacing, for example, u=log2(first subcarrier spacing / 15 kHz).

[0178] The number of second symbols in the first time unit is N1, and the number of third symbols in the first time unit is N2. The second symbol is a symbol whose CP length is the first length multiplied by the second time unit among multiple first symbols, and the third symbol is a symbol whose CP length is the second length multiplied by the second time unit among multiple first symbols. N1 and N2 are integers greater than or equal to zero. N=N1+N2. For example, if N1 is zero, it means that there is no second symbol in the symbols in the first time unit, and they are all third symbols. For another example, N is 200, N1 is 120, and N2=N-N1=80.

[0179] In a possible implementation, there is no third symbol in the first time unit. In this case, N2 is 0, or there is no parameter N2. For example, the number of second symbols in the first time unit is N1, and the second symbol is a symbol whose cyclic prefix length is the first length multiplied by the second time unit among the multiple first symbols, wherein N1 is an integer greater than or equal to zero. Optionally, N1 is equal to N at this time. In a possible implementation, there is no second symbol in the first time unit. In this case, N1 is 0, or there is no parameter N1. For example, the number of third symbols in the first time unit is N2, and the third symbol is a symbol whose cyclic prefix length is the second length multiplied by the second time unit among the multiple first symbols, wherein N2 is an integer greater than or equal to zero. Optionally, N2 is equal to N at this time.

[0180] There are many possible implementations of the positions of the second symbol and the third symbol within the first time unit.

[0181] Implementation method 1: the first N1 consecutive symbols in the first time unit are the second symbol, and the last N2 consecutive symbols in the first time unit are the third symbol. That is, the symbol of one CP is at the front of the first time unit, and the symbol of another CP is at the back of the first time unit.

[0182] Implementation method 2: the first N3 consecutive symbols in the first time unit are the second symbol, the last N4 consecutive symbols in the first time unit are the second symbol, and N2 third symbols are continuous in the first time unit, where N3+N4=N1. That is, the symbol of one CP is at the front and back of the first time unit, and the symbol of another CP is in the middle of the first time unit.

[0183] Implementation method three, the first time unit is composed of a continuous third time unit, the first symbol of the third time unit is the second symbol, and the remaining symbols of the third time unit are floor (N1 / N2) third symbols, where floor means rounding down, and N1 is greater than N2. In other words, the symbols of the two CP lengths are placed at intervals. It should be understood that the third time unit here is only for the convenience of describing the position of the second symbol and the third symbol in the first time unit, and it is not necessary to have a third time unit, as long as the positions of the second symbol and the third symbol are placed at intervals here. For example, if N1 is 40 and N2 is 80, then in the first time unit, the first symbol is the second symbol, the second and third symbols are the third symbol, and then the fourth symbol is the second symbol, the fifth and sixth symbols are the third symbols, and so on. In addition, the positions of the second symbol and the third symbol can also be interchanged, which is also an implementation method of this implementation method. For example, the first time unit is composed of consecutive third time units, the first symbol of the third time unit is the third symbol, and the remaining symbols of the third time unit are floor(N2 / N1) second symbols, where floor means rounding down, and N2 is greater than N1.

[0184] Implementation method 4: if there is only one symbol with one CP length, then the symbols with the CP length are placed sequentially. For example, all symbols in the first time unit are the second symbol, or all symbols in the first time unit are the third symbol.

[0185] like Figure 5 As shown in FIG. 1 , it is a schematic diagram of the above four implementation methods. Figure 5 In implementation method one, the second symbol is at the front of the first time unit, and the third symbol is at the back of the first time unit; in implementation method two, the second symbol is at the front and back of the first time unit, and the third symbol is in the middle of the first time unit; in implementation method three, the second symbol and the third symbol are placed alternately in the first time unit, the first symbol in the first time unit is the second symbol, and then the next floor(N2 / N1)=3 symbols are the third symbol, and then the next is another second symbol, and so on; in implementation method three, because there is only the second symbol, the second symbols are placed sequentially.

[0186] One or more of N, u, the first length, the second length, the second time unit, the first subcarrier spacing, the first value, N1, or N2 may be predefined by a protocol or configured by a network device.

[0187] In a possible implementation, the first length multiplied by the second time unit is greater than 50 nanoseconds; the second length multiplied by the second time unit is greater than 50 nanoseconds. In this way, the CP length of the symbol in the first time unit is greater than 50 nanoseconds, so that the CP length can meet the multipath delay requirement.

[0188] There are multiple possible implementations for determining N1.

[0189] In implementation mode 1, the value of N1 may be one of 12, 8, 4, 2, 1, 7, 10, 13 or 6. Thus, if the first time unit can include 15 symbols without considering CP, the value of N1 may be selected as the second number of symbols with considering CP.

[0190] In implementation mode 2, the value of N1 may be one of 2, 1, 12, 6, 3, 24, 20, 10, 5, 15, 16, 21, 17, 14, 26, 27 or 25. Thus, if the first time unit can include 30 symbols without considering the CP, the value of N1 may be selected as the second number of symbols with considering the CP.

[0191] In implementation mode three, the value of N1 may be one of 4, 25, 2, 24, 35, 12, 6, 9, 28, 14, 7, 27, 48, 26, 13, 31, 40, 20, 10, 45, 30, 42, 21, 36, 18, 32, 47, 16, 34, 43, 8, 41, 51, 39, 33, 5, 52, 54, or 55. In this way, if the first time unit can include 60 symbols without considering the CP, the value of N1 may be selected as the second number of symbols with the CP considered.

[0192] In implementation mode 4, the value of N1 may be one of 8, 50, 71, 4, 48, 70, 24, 12, 18, 56, 75, 28, 61, 14, 54, 96, 52, 26, 62, 80, 89, 40, 69, 20, 84, 42, 21, 60, 30, 90, 95, 85, 93, 72, 87, 36, 64, 94, 99, 32, 68, 86, 16, 82, 45, 102, 105, 78, 66, 65, 10, 104, 108, 110 or 111. In this way, if the first time unit can include 120 symbols without considering the CP, the value of N1 may be selected as the second number of symbols when considering the CP.

[0193] In implementation mode 5, the value of N1 can be 16, 100, 142, 163, 8, 96, 140, 48, 24, 174, 87, 138, 69, 129, 192, 104, 150, 173, 52, 124, 160, 178, 80, 40, 168, 183, 84, 141, 42, 120, 159, 60, 180, 190, 195, 170 , 185, 186, 144, 189, 72, 171, 36, 128, 188, 198, 203, 64, 136, 172, 199, 32, 164, 112, 90, 204, 210, 213, 156, 132, 205, 130, 175, 20, 208, 216, 220, 222, 223, 105, 165 or 201. In this way, if the first time unit can include 240 symbols without considering CP, the value of N1 can be selected as the second number of symbols considering CP.

[0194] It should be noted that the values ​​of N1 and N2 can be interchangeable. For example, in implementation mode 1, the value of N1 can be one of 12, 8, 4, 2, 1, 7, 10, 13, or 6. The value of N2 can also be one of 12, 8, 4, 2, 1, 7, 10, 13, or 6.

[0195] There are multiple possible implementations for determining N2.

[0196] In implementation mode 1, the value of N2 may be one of 0, 5, 9, 11, 12, 6, 3, 4, 2, 1 or 8. Thus, if the first time unit can include 15 symbols without considering CP, the value of N2 may be selected as the third number of symbols considering CP.

[0197] In implementation mode 2, the value of N2 may be one of 21, 22, 11, 17, 20, 0, 5, 15, 10, 18, 9, 24, 12, 6, 3, 8, 4, 2, 1 or 16. Thus, if the first time unit can include 30 symbols without considering the CP, the value of N2 may be selected as the third number of symbols considering the CP.

[0198] In implementation mode three, the value of N2 may be one of 42, 21, 44, 22, 11, 34, 40, 38, 19, 33, 20, 0, 23, 36, 18, 9, 29, 39, 10, 5, 30, 15, 48, 24, 12, 6, 3, 35, 45, 50, 25, 16, 8, 4, 2, 1, 32 or 27. In this way, if the first time unit can include 60 symbols without considering the CP, the value of N2 may be selected as the third number of symbols considering the CP.

[0199] In implementation mode 4, the value of N2 may be one of 84, 42, 21, 88, 44, 22, 68, 80, 76, 38, 19, 66, 33, 40, 0, 46, 23, 72, 36, 18, 9, 58, 29, 78, 30, 15, 57, 39, 69, 20, 10, 5, 60, 11, 96, 48, 24, 12, 6, 3, 70, 35, 90, 45, 100, 50, 25, 32, 16, 8, 4, 2, 1, 64, 54 or 27. In this way, if the first time unit can include 120 symbols without considering the CP, the value of N2 may be selected as the third number of symbols when considering the CP.

[0200] In implementation mode five, the value of N2 can be one of 168, 84, 42, 21, 176, 88, 44, 136, 160, 15, 102, 51, 120, 60, 0, 92, 46, 23, 144, 72, 36, 18, 116, 58, 156, 30, 114, 57, 78, 39, 138, 40, 20, 10, 5, 80, 9, 132, 66, 33, 22, 192, 96, 48, 24, 12, 6, 3, 140, 70, 35, 180, 90, 45, 200, 100, 50, 25, 64, 32, 16, 8, 4, 2, 1, 128, 108, 54 or 27. In this way, if the first time unit can include 240 symbols without considering CP, the value of N2 can be selected as the third symbol number when considering CP.

[0201] It should be noted that the values ​​of N1 and N2 can be interchangeable. For example, in implementation mode 1, the value of N2 can be one of 0, 5, 9, 11, 12, 6, 3, 4, 2, 1, or 8. The value of N1 can also be one of 0, 5, 9, 11, 12, 6, 3, 4, 2, 1, or 8.

[0202] By determining N1 or N2 in the above manner, different CP lengths can be used in the first time unit, so that transmission can be suitable for different environments.

[0203] In one possible implementation, the first length may be one of 208, 256, 272, 288, 320, 352, 368, 384, 448, 512, 576, 608, 624, 640, 704, 720, 768, 800, 816, 832, 864, 896, 912, 1024, 1088, 1104, 1120, 1152, 1216, or 1232.

[0204] In one possible implementation, the second length may be one of 224, 240, 272, 288, 304, 320, 352, 384, 400, 416, 432, 448, 464, 480, 512, 544, 576, 592, 608, 640, 656, 672, 688, 704, 736, 752, 768, 784, 800, 832, 848, 864, 880, 896, 928, 944, 960, 976, 1024, 1040, 1056, 1088, 1120, 1136, 1152, 1184, 1216, 1248, 1264, 1280, 1296, 1312, 1344 or 1360.

[0205] It should be noted that the values ​​of the first length and the second length can be interchangeable. For example, the first length mentioned above can be one of 208, 256, or 272. The value of the second length can also be one of 208, 256, or 272. For another example, the second length mentioned above can be one of 224, 240, or 272, and the value of the first length can also be one of 224, 240, or 272.

[0206] By setting the first length and the second length, on the one hand, it is possible to avoid a situation where the length difference between the two CPs is too large, thereby facilitating system implementation; on the other hand, by setting, a certain difference is made between the two CP lengths, so that different applications, such as perception and communication applications, can be compatible.

[0207] In a possible implementation, the values ​​of the first length, the second length, N1, and N2 satisfy the following conditions:

[0208] N1*CP length of the second symbol+N2*CP length of the third symbol=(N5-N1-N2)*duration of the second symbol excluding CP,

[0209] The duration of the second symbol excluding the CP may be replaced by the duration of the third symbol excluding the CP, or may be replaced by the duration of the first symbol excluding the CP. N5 is an integer greater than or equal to N1+N2. N5 is the number of symbols in the first time unit without considering the CP. For example, N5 is one of 15, 30, 60, 120, or 240.

[0210] In a possible implementation, N5 is the smallest number among 15, 30, 60, 120 or 240 that is greater than or equal to N1+N2.

[0211] Through the above method, the CP length and quantity of symbols with different CP lengths in the first time unit can be flexibly adjusted to adapt to different application scenarios, while ensuring that the duration of the first time unit remains unchanged.

[0212] In a possible implementation, the values ​​of N, the first length, the second length, N1, and N2 can be obtained from any row in Table 1. The first length is represented by CP1 in Table 1, and the second length is represented by CP2 in Table 1. Each row in Table 1 represents a possible value combination. For example, the first row in Table 1 represents that all 12 symbols in the first time unit are second symbols, and the first length corresponding to the second symbol is 1024. For another example, the second row in Table 1 represents that the number of symbols in the first time unit is 13, including 8 second symbols and 5 third symbols, the first length corresponding to the second symbol is 624, and the second length corresponding to the third symbol is 640. For another example, as shown in Table 1, N is 200, N1 is 80, N2 is 120, the first length is 800, and the second length is 832. For another example, as shown in Table 1, N is 200, N1 is 80, N2 is 120, the first length is 512, and the second length is 1024. It should be noted that the values ​​of N1 and N2 in Table 1 can be interchanged, and the values ​​of CP1 and CP2 can also be interchanged. For example, the first row in Table 1 can also represent that N2 is 12, N1 is 0, CP2 is 1024, and CP1 is 1040, that is, all 12 symbols in the first time unit are third symbols, and the second length corresponding to the third symbol is 1024. For another example, the second row in Table 1 can also represent that N2 is 8, N1 is 5, CP2 is 624, and CP1 is 640, that is, 8 symbols in the first time unit are third symbols, 5 symbols are second symbols, the second length corresponding to the third symbol is 624, and the first length corresponding to the second symbol is 640.

[0213] Table 1

[0214]

[0215]

[0216]

[0217]

[0218]

[0219]

[0220]

[0221] By uniformly setting the values ​​of N, the first length, the second length, N1, and N2, the problem of unequal durations of different first time units can be avoided, which is beneficial to system implementation.

[0222] In a possible implementation, the values ​​of N, the first length, the second length, N1, and N2 can be obtained from any row in Table 2 or Table 3. For specific implementation details, please refer to the embodiment corresponding to Table 1, which will not be repeated here. Different CP lengths can be obtained by multiplying CP1 and CP2 in Table 1 by the scaling factor. This makes it convenient for terminal devices and network devices to communicate with different precisions or sampling points to adapt to different application scenarios. For example, CP1 and CP2 in Table 2 can be obtained by multiplying CP1 and CP2 in Table 1 by 0.5, while N1 and N2 remain unchanged. For another example, CP1 and CP2 in Table 3 can be obtained by multiplying CP1 and CP2 in Table 1 by 2, while N1 and N2 remain unchanged.

[0223] Table 2

[0224]

[0225]

[0226]

[0227]

[0228]

[0229]

[0230]

[0231]

[0232] Table 3

[0233]

[0234]

[0235]

[0236]

[0237]

[0238]

[0239]

[0240]

[0241] In a possible implementation, the value of N may be one of 60, 63, 64, 66, 68 or 70.

[0242] In a possible implementation, the value of N1 can be one of 60, 15, 39, 51, 57, 30, 64, 32, 48, 56, 16, 40, 6, 36, 18, 42, 54, 44, 62, 65, 28, 58, 63, 24, 46 or 50.

[0243] In a possible implementation, the value of N2 may be one of 0, 48, 24, 12, 6, 3, 33, 32, 16, 8, 60, 30, 15, 40, 20, 10, 5, 44, 22, or 11.

[0244] In a possible implementation, the value of the first length may be one of 256, 288, 384, 416, 512, 544, 640, 704, 768 or 1024.

[0245] In a possible implementation, the value of the second length may be one of 304, 320, 352, 384, 432, 448, 480, 512, 544, 560, 576, 608, 640, 720, 768, 784, 800, 832, 896, 1024, 1040, 1152 or 1280.

[0246] In a possible implementation, the values ​​of N, the first length, the second length, N1, and N2 can be obtained from any row in Table 4. For specific implementation details, reference can be made to the embodiment corresponding to Table 1, which will not be described in detail here.

[0247] Table 4

[0248] N N1 N2 CP1 CP2 60 60 0 1024 1040 63 15 48 768 784 63 39 24 768 800 63 51 12 768 832 63 57 6 768 896 63 60 3 768 1024 63 30 33 512 1024 64 64 0 704 720 64 32 32 640 768 64 48 16 640 896 64 56 8 640 1152 64 16 48 512 768 64 40 24 512 1024 66 6 60 544 560 66 36 30 544 576 66 51 15 544 608 66 18 48 512 576 66 42 24 512 640 66 54 12 512 768 66 60 6 512 1024 68 44 24 416 432 68 56 12 416 448 68 62 6 416 480 68 65 3 416 544 68 28 40 384 448 68 48 20 384 512 68 58 10 384 640 68 63 5 384 896 68 24 44 256 512 68 46 22 256 768 68 57 11 256 1280 70 50 20 288 304 70 60 10 288 320 70 65 5 288 352 70 30 40 256 320 70 50 20 256 384 70 60 10 256 512 70 65 5 256 768

[0249] In this way, if the first time unit can include 75 symbols without considering CP, then the value of N can be selected as the number of symbols considering CP, the value of N1 can be selected as the second number of symbols considering CP, the value of N2 can be selected as the third number of symbols considering CP, and the above values ​​can be selected as the first length and second length considering CP.

[0250] In a possible implementation, the value of N may be one of 120, 126, 128, 132, 135, 136 or 140.

[0251] In a possible implementation, the value of N1 may be one of 120, 30, 78, 102, 114, 123, 60, 128, 64, 96, 112, 32, 80, 12, 72, 117, 36, 84, 108, 75, 105, 88, 124, 130, 133, 56, 116, 126, 48, 92, 100, or 135.

[0252] In a possible implementation, the value of N2 can be one of 0, 96, 48, 24, 12, 6, 3, 66, 64, 32, 16, 120, 60, 30, 15, 75, 105, 80, 40, 20, 10, 88, 44, 22 or 5.

[0253] In a possible implementation, the value of the first length may be one of 256, 288, 384, 416, 448, 512, 544, 640, 704, 768 or 1024.

[0254] In a possible implementation, the value of the second length may be one of 304, 320, 352, 384, 416, 432, 448, 464, 480, 512, 544, 560, 576, 608, 640, 672, 720, 768, 784, 800, 832, 896, 1024, 1040, 1152 or 1280.

[0255] In a possible implementation, the values ​​of N, the first length, the second length, N1, and N2 can be obtained from any row in Table 5. For specific implementation details, reference can be made to the embodiment corresponding to Table 1, which will not be described in detail here.

[0256] Table 5

[0257]

[0258]

[0259] In this way, if the first time unit can include 150 symbols without considering CP, the value of N can be selected as the number of symbols considering CP, the value of N1 can be selected as the second number of symbols considering CP, the value of N2 can be selected as the third number of symbols considering CP, and the above values ​​can be selected as the first length and second length considering CP.

[0260] In one possible implementation, the value of N may be one of 228, 232, 233, 234, 236, 238, 240, 242, 243, 244, 245, 246, 248, 250, 252, 255, 256, 258, 260, 261, 264, 266, 268, 270, 272, 273, 275, 276, 279, 280, 282, 284 or 285.

[0261] In a possible implementation, the value of N1 can be 36, 132, 180, 224, 228, 230, 231, 112, 172, 202, 56, 144, 72, 90, 45, 139, 186, 93, 210, 222, 114, 136, 211, 68, 152, 194, 215, 76, 156, 74, 197, 78, 158, 198, 240, 199, 160, 201, 80, 161, 40, 141, 20, 237, 120, 60, 30, 221, 162, 130, 65, 155, 200, 100, 50, 234, 24 One of: 3, 183, 164, 206, 227, 196, 235, 204, 225, 175, 150, 246, 105, 256, 128, 192, 64, 84, 171, 42, 102, 170, 205, 140, 195, 57, 159, 24, 249, 168, 216, 218, 242, 254, 260, 116, 96, 182, 48, 213, 146, 207, 255, 165, 176, 248, 266, 269, 232, 252, 184, 25, 258, 267, 51, 270, 275, 276, or 279.

[0262] In a possible implementation, the value of N2 can be 192, 96, 48, 8, 4, 2, 1, 120, 60, 30, 176, 88, 160, 143, 188, 94, 47, 140, 24, 12, 6, 100, 50, 25, 168, 84, 42, 21, 80, 164, 82, 41, 40, 0, 86, 43, 162, 81, 202, 101, 222, 3, 123, 183, 213, 184, 92, 46, 23, 204, 115, 180, 90, 45, 145, 195, 126, 63, 186 ,208,104,52,26,13,44,150,75,200,132,165,210,105,128,64,32,174,87,216,108,54,27,156,78,220,110,55,240,66,33,147,102,51,15,152,76,38,19,172,244,122,61,20,159,175,225,250,125,72,36,18,9,39,177,228,114,57,10,5,or 135.

[0263] In a possible implementation, the value of the first length may be one of 208, 224, 256, 288, 304, 320, 352, 368, 384, 400, 416, 448, 480, 512, 544, 576, 608, 624, 640, 656, 704, 720, 768, 800, 816, 832, 848, 896, 912, 928, 960, 976, 1024, 1056, 1088, 1104, 1152, 1168, 1184, 1200 or 1280.

[0264] In a possible implementation, the value of the second length may be 224, 240, 256, 272, 288, 304, 320, 352, 368, 384, 416, 432, 448, 464, 480, 496, 512, 528, 544, 560, 576, 608, 624, 640, 656, 672, 688, 704, 720, 736, 768, 784, 8 One of 00, 832, 848, 864, 880, 896, 912, 928, 944, 960, 976, 992, 1008, 1024, 1040, 1056, 1072, 1088, 1120, 1136, 1152, 1168, 1184, 1216, 1232, 1248, 1264, 1280, 1296, 1312, 1328 or 1344.

[0265] In a possible implementation, the values ​​of N, the first length, the second length, N1, and N2 can be obtained from any row in Table 6. For specific implementation details, reference can be made to the embodiment corresponding to Table 1, which will not be repeated here.

[0266] Table 6

[0267]

[0268]

[0269]

[0270]

[0271]

[0272] In this way, if the first time unit can include 300 symbols without considering CP, the value of N can be selected as the number of symbols considering CP, the value of N1 can be selected as the second number of symbols considering CP, the value of N2 can be selected as the third number of symbols considering CP, and the above values ​​can be selected as the first length and second length considering CP.

[0273] The above scheme allows the terminal device to transmit with as many prime factors as possible in the number of symbols in a time unit, thus making scheduling simpler, that is, if the terminal device is scheduled with a length of a certain factor, then the scheduling result is an integer number of scheduling opportunities. This ensures that spectrum resources can be better utilized in large bandwidth scenarios, avoids transmission being restricted by the boundaries of time units, causes spectrum resource waste, and improves communication efficiency.

[0274] The various embodiments of the present invention may be used independently or in combination. The different steps in the various embodiments may also be used independently or in combination. If there are similar steps in different embodiments, their descriptions may be mutually quoted and referenced.

[0275] Corresponding to the above method, an embodiment of the present application provides a communication device. Figures 6 to 8 The following is a schematic diagram of the structure of possible communication devices provided in the embodiments of the present application. These communication devices can be used to implement the functions of the terminal device or network device in the above method embodiments, and thus can also achieve the beneficial effects of the above method embodiments. In the embodiments of the present application, the communication device can be as follows: Figure 1 The RAN node, terminal device, core network device or other network device shown may also be a component (such as a chip) in these devices.

[0276] like Figure 6As shown, the communication device 600 includes a processing unit 610 and a transceiver unit 620. The communication device 600 is used to implement the above Figure 3 The functions of the terminal device or the network device in the method embodiment shown in FIG.

[0277] When the communication device 600 is used to implement Figure 3 The function of the terminal device in the method embodiment shown is: the transceiver unit 620 is used to send or receive a first transmission on at least one first symbol; the at least one first symbol is located in a first time unit, the first time unit is composed of multiple first symbols, and the number of first symbols contained in the first time unit is N, and N is a positive integer.

[0278] In one possible design, N is equal to the product of at least 3 prime numbers.

[0279] In one possible design, N is one of 184, 189, 192, 196, 198, 200, 204, 208, 210, 216, 220, 224, 225 or 228.

[0280] In one possible design, the duration of the first time unit is 1 divided by 2. u milliseconds, where u is a positive integer less than or equal to 8.

[0281] In one possible design, the processing unit 610 is used to control or instruct the transceiver unit 620 to receive, and is used to control or instruct the transceiver unit 620 to send.

[0282] In one possible design, the cyclic prefix length of the multiple first symbols is a first length multiplied by a second time unit or a second length multiplied by a second time unit; wherein the first length and the second length are both integer multiples of one of 16, 32, 64, 128 or 256, the first length and the second length are not equal, the second time unit is m / (first subcarrier spacing*first numerical value), the first subcarrier spacing is one of 480kHz, 960kHz, 1920kHz, 3840kHz or 7680kHz, the first numerical value is one of 2048, 4096, 8192, 16384 or 32768, and m is 1 or a positive integer.

[0283] In one possible design, the number of second symbols in the first time unit is N1, the number of third symbols in the first time unit is N2, the second symbol is a symbol whose cyclic prefix length is the first length multiplied by the second time unit among the multiple first symbols, and the third symbol is a symbol whose cyclic prefix length is the second length multiplied by the second time unit among the multiple first symbols, wherein N1 and N2 are integers greater than or equal to zero.

[0284] In a possible design, the first N1 consecutive symbols in the first time unit are the second symbol, and the last N2 consecutive symbols in the first time unit are the third symbol.

[0285] In one possible design, the first N3 consecutive symbols in the first time unit are the second symbol, the last N4 consecutive symbols in the first time unit are the second symbol, and the N2 third symbols are consecutive in the first time unit, where N3+N4=N1.

[0286] In one possible design, the first time unit is composed of a continuous third time unit, the first symbol of the third time unit is the second symbol, and the remaining symbols of the third time unit are floor(N1 / N2) third symbols, where floor means rounding down and N1 is greater than N2.

[0287] In one possible design, the first length multiplied by the second time unit is greater than 50 nanoseconds; the second length multiplied by the second time unit is greater than 50 nanoseconds.

[0288] In one possible design, the first length is one of 208, 256, 272, 288, 320, 352, 368, 384, 448, 512, 576, 608, 624, 640, 704, 720, 768, 800, 816, 832, 864, 896, 912, 1024, 1088, 1104, 1120, 1152, 1216 or 1232; the N1 is one of 142, 163, 140, 174, 13 8,129,192,150,173,124,160,178,168,183,141,120,159,180,190,195,170,185,186,144,189,171,128,188,198,203,136,172,199,164,112,204,210,213,156,132,205,130,175,208,216,220,222,22 3,165 or 201; the second length is 224,240,272,288,304,320,352,384,400,416,432,448,464,480,512,544,576,592,608,640,656,672,688,704,736,752,768,784,800,832,848,864,880,896,928,944,960,976 , 1024, 1040, 1056, 1088, 1120, 1136, 1152, 1184, 1216, 1248, 1264, 1280, 1296, 1312, 1344 or 1360; the N2 is one of 168, 176, 136, 160, 102, 51, 120, 92, 144, 116, 156, 114, 138, 132, 192, 140, 180, 200, 128 or 108.

[0289] In one possible design, N1 is 80, N2 is 120, the first length is 800, and the second length is 832; or, N1 is 80, N2 is 120, the first length is 512, and the second length is 1024.

[0290] When the communication device 600 is used to implement Figure 3 The function of the network device in the method embodiment shown is: a transceiver unit 620, used to receive or send a first transmission on at least one first symbol; the at least one first symbol is located in a first time unit, the first time unit is composed of multiple first symbols, and the number of first symbols contained in the first time unit is N, and N is a positive integer.

[0291] In one possible design, N is equal to the product of at least 3 prime numbers.

[0292] In one possible design, N is one of 184, 189, 192, 196, 198, 200, 204, 208, 210, 216, 220, 224, 225 or 228.

[0293] In one possible design, the duration of the first time unit is 1 divided by 2. u milliseconds, where u is a positive integer less than or equal to 8.

[0294] In one possible design, the processing unit 610 is used to control or instruct the transceiver unit 620 to receive, and is used to control or instruct the transceiver unit 620 to send.

[0295] In one possible design, the cyclic prefix length of the multiple first symbols is a first length multiplied by a second time unit or a second length multiplied by a second time unit; wherein the first length and the second length are both integer multiples of one of 16, 32, 64, 128 or 256, the first length and the second length are not equal, the second time unit is m / (first subcarrier spacing*first numerical value), the first subcarrier spacing is one of 480kHz, 960kHz, 1920kHz, 3840kHz or 7680kHz, the first numerical value is one of 2048, 4096, 8192, 16384 or 32768, and m is 1 or a positive integer.

[0296] In one possible design, the number of second symbols in the first time unit is N1, the number of third symbols in the first time unit is N2, the second symbol is a symbol whose cyclic prefix length is the first length multiplied by the second time unit among the multiple first symbols, and the third symbol is a symbol whose cyclic prefix length is the second length multiplied by the second time unit among the multiple first symbols, wherein N1 and N2 are integers greater than or equal to zero.

[0297] In one possible design, the first N1 consecutive symbols in the first time unit are the second symbol, and the last N2 consecutive symbols in the first time unit are the third symbol.

[0298] In one possible design, the first N3 consecutive symbols in the first time unit are the second symbol, the last N4 consecutive symbols in the first time unit are the second symbol, and the N2 third symbols are consecutive in the first time unit, where N3+N4=N1.

[0299] In one possible design, the first time unit is composed of a continuous third time unit, the first symbol of the third time unit is the second symbol, and the remaining symbols of the third time unit are floor(N1 / N2) third symbols, where floor means rounding down and N1 is greater than N2.

[0300] In one possible design, the first length multiplied by the second time unit is greater than 50 nanoseconds; the second length multiplied by the second time unit is greater than 50 nanoseconds.

[0301] In one possible design, the first length is one of 208, 256, 272, 288, 320, 352, 368, 384, 448, 512, 576, 608, 624, 640, 704, 720, 768, 800, 816, 832, 864, 896, 912, 1024, 1088, 1104, 1120, 1152, 1216 or 1232; the N1 is one of 142, 163, 140, 174, 13 8,129,192,150,173,124,160,178,168,183,141,120,159,180,190,195,170,185,186,144,189,171,128,188,198,203,136,172,199,164,112,204,210,213,156,132,205,130,175,208,216,220,222,22 3,165 or 201; the second length is 224,240,272,288,304,320,352,384,400,416,432,448,464,480,512,544,576,592,608,640,656,672,688,704,736,752,768,784,800,832,848,864,880,896,928,944,960,976 , 1024, 1040, 1056, 1088, 1120, 1136, 1152, 1184, 1216, 1248, 1264, 1280, 1296, 1312, 1344 or 1360; the N2 is one of 168, 176, 136, 160, 102, 51, 120, 92, 144, 116, 156, 114, 138, 132, 192, 140, 180, 200, 128 or 108.

[0302] In one possible design, N1 is 80, N2 is 120, the first length is 800, and the second length is 832; or, N1 is 80, N2 is 120, the first length is 512, and the second length is 1024.

[0303] The present application embodiment proposes a communication device 700, such as Figure 7 As shown, a schematic block diagram of another communication device according to an embodiment of the present application is shown. The communication device 700 includes a processor 710, the processor 710 is coupled to at least one memory 720, and the processor 710 is used to read the computer program stored in the at least one memory 720 to execute the method in any possible implementation manner in the embodiment of the present application.

[0304] The present application embodiment further proposes a communication device 800, such as Figure 8 As shown, the communication device 800 includes a processor 810 and an interface circuit 820. The processor 810 and the interface circuit 820 are coupled to each other. It is understood that the interface circuit 820 can be a transceiver or an input-output interface. Optionally, the communication device 800 may also include a memory 830 for storing instructions executed by the processor 810 or storing input data required by the processor 810 to execute instructions or storing data generated after the processor 810 executes instructions.

[0305] When the communication device 800 is used to implement Figure 3 When the method is shown, the processor 810 is used to implement the function of the above-mentioned processing unit 610, and the interface circuit 820 is used to implement the function of the above-mentioned transceiver unit 620.

[0306] When the above communication device is a chip applied to a terminal device, the terminal device chip implements the functions of the terminal device in the above method embodiment. The terminal device chip receives information from other modules in the terminal device (such as a radio frequency module or an antenna), and the information is sent by the network device to the terminal device; or the terminal device chip sends information to other modules in the terminal device (such as a radio frequency module or an antenna), and the information is sent by the terminal device to the network device.

[0307] When the above communication device is a chip applied to a network device, the network device chip implements the function of the network device in the above method embodiment. The network device chip receives information from other modules in the network device (such as a radio frequency module or an antenna), and the information is sent by the terminal device to the network device; or the network device chip sends information to other modules in the network device (such as a radio frequency module or an antenna), and the information is sent by the network device to the terminal device.

[0308] The processor of the embodiment of the present application may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiment can be completed by the hardware integrated logic circuit or software instructions in the processor. The above processor can be a general processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (application specific integrated circuit, ASIC), a field programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in the embodiment of the present application can be directly embodied as a hardware decoding processor to perform, or the hardware and software modules in the decoding processor are combined and executed. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0309] The memory of the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct rambus RAM (DR RAM).

[0310] The present embodiment of the application provides a communication system 900, including a terminal device 910 and a network device 920 in the communication method provided in the embodiment of the application. Fig. 9 As shown, a schematic block diagram of a communication system 900 according to an embodiment of the present application is shown.

[0311] The method steps in the embodiments of the present application can be implemented by hardware, or by a processor executing software instructions. The software instructions can be composed of corresponding software modules, and the software modules can be stored in a random access memory, a flash memory, a read-only memory, a programmable read-only memory, an erasable programmable read-only memory, an electrically erasable programmable read-only memory, a register, a hard disk, a mobile hard disk, a CD-ROM, or any other form of storage medium well known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and can write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and the storage medium can be located in an ASIC. In addition, the ASIC can be located in a network device or a terminal device. Of course, the processor and the storage medium can also be present in a network device or a terminal device as discrete components.

[0312] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in whole or in part 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 instruction is loaded and executed on a computer, the process or function described in the embodiment of the present application is executed in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device or other programmable device. The computer program or instruction may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer program or instruction may be transmitted from one website site, computer, server or data center to another website site, computer, server or data center by wired or wireless means. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server, data center, etc. that integrates one or more available media. The available medium may be a magnetic medium, for example, a floppy disk, a hard disk, a tape; it may also be an optical medium, for example, a digital video disc; it may also be a semiconductor medium, for example, a solid-state hard disk. The computer-readable storage medium may be a volatile or nonvolatile storage medium, or may include both volatile and nonvolatile types of storage media.

[0313] It can be understood that in various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0314] It can be understood that in the present application, "when", "if" and "if" all mean that the device will take corresponding actions under certain objective circumstances, and do not limit the time, nor do they require that the device must have a judgment action when it is implemented, nor do they mean that there are other limitations.

[0315] Those skilled in the art will appreciate that the first, second, and other various digital numbers involved in the present application are only for the convenience of description and are not intended to limit the scope of the embodiments of the present application. The specific values ​​of the numbers (also referred to as indexes), the specific values ​​of the quantities, and the positions in the present application are only for illustrative purposes, are not the only form of representation, and are not intended to limit the scope of the embodiments of the present application. The first, second, and other various digital numbers involved in the present application are also only for the convenience of description and are not intended to limit the scope of the embodiments of the present application.

[0316] In addition, the term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there may be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the objects associated before and after are in an "or" relationship; the term "at least one" in this application can mean "one" and "two or more". For example, at least one of A, B and C can represent seven situations: A exists alone, B exists alone, C exists alone, A and B exist at the same time, A and C exist at the same time, C and B exist at the same time, and A, B and C exist at the same time.

[0317] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0318] In the several embodiments provided in the present 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 only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, 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.

[0319] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0320] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

Claims

1. A communication method, characterized in that: include: sending or receiving a first transmission on at least one first symbol; The at least one first symbol is located in a first time unit, the first time unit is composed of a plurality of first symbols, the number of first symbols contained in the first time unit is N, N is equal to the product of at least 3 prime numbers, and the duration of the first time unit is 1 divided by 2 u milliseconds, where u is a positive integer less than or equal to 8.

2. The method according to claim 1, characterized in that: The cyclic prefix length of the plurality of first symbols is the first length multiplied by the second time unit or the second length multiplied by the second time unit; The first length and the second length are both integer multiples of 16, 32, 64, 128 or 256, the first length and the second length are not equal, the second time unit is m / (first subcarrier spacing*first value) seconds, the first subcarrier spacing is one of 480kHz, 960kHz, 1920kHz, 3840kHz or 7680kHz, the first value is one of 2048, 4096, 8192, 16384 or 32768, and m is a positive integer.

3. The method according to claim 2, characterized in that: The number of second symbols in the first time unit is N1, the number of third symbols in the first time unit is N2, the second symbol is a symbol whose cyclic prefix length is the first length multiplied by the second time unit among the multiple first symbols, and the third symbol is a symbol whose cyclic prefix length is the second length multiplied by the second time unit among the multiple first symbols, wherein N1 and N2 are integers greater than or equal to zero.

4. The method according to claim 3, characterized in that: The first N1 consecutive symbols in the first time unit are the second symbol, and the last N2 consecutive symbols in the first time unit are the third symbol.

5. The method according to claim 3, characterized in that: The first N3 consecutive symbols in the first time unit are the second symbol, the last N4 consecutive symbols in the first time unit are the second symbol, and the N2 third symbols are consecutive in the first time unit. Among them, N3+N4=N1.

6. The method according to claim 3, characterized in that: The first time unit is composed of a continuous third time unit, the first symbol of the third time unit is the second symbol, and the remaining symbols of the third time unit are floor(N1 / N2) third symbols, where floor means rounding down and N1 is greater than N2.

7. The method according to any one of claims 2 to 6, characterized in that The first length multiplied by the second time unit is greater than 50 nanoseconds; the second length multiplied by the second time unit is greater than 50 nanoseconds.

8. The method according to any one of claims 2 to 7, characterized in that The first length is one of 208, 256, 272, 288, 320, 352, 368, 384, 448, 512, 576, 608, 624, 640, 704, 720, 768, 800, 816, 832, 864, 896, 912, 1024, 1088, 1104, 1120, 1152, 1216 or 1232; the N1 is one of 142, 163, 140, 174, 138, 129, 19 2,150,173,124,160,178,168,183,141,120,159,180,190,195,170,185,186,144,189,171,128,188,198,203,136,172,199,164,112,204,210,213,156,132,205,130,175,208,216,220,222,223,165 or 201; the second length is 224,240,272,288,304,320,352,384,400,416,432,448,464,480,512,544,576,592,608,640,656,672,688,704,736,752,768,784,800,832,848,864,880,896,928,944,960,976,1 024,1040,1056,1088,1120,1136,1152,1184,1216,1248,1264,1280,1296,1312,1344 or 1360; N2 is one of 168,176,136,160,102,51,120,92,144,116,156,114,138,132,192,140,180,200,128 or 108.

9. The method according to any one of claims 2 to 7, characterized in that The N1 is 80, the N2 is 120, the first length is 800, and the second length is 832; or, The N1 is 80, the N2 is 120, the first length is 512, and the second length is 1024.

10. A communication method, characterized in that: include: sending or receiving a first transmission on at least one first symbol; The at least one first symbol is located in a first time unit, the first time unit consists of multiple first symbols, the number of first symbols contained in the first time unit is N, and N is one of 184, 189, 192, 196, 198, 200, 204, 208, 210, 216, 220, 224, 225 or 228.

11. The method according to claim 10, characterized in that: The duration of the first time unit is 1 divided by 2 u milliseconds, where u is a positive integer less than or equal to 8.

12. The method according to claim 10 or 11, characterized in that: The cyclic prefix length of the plurality of first symbols is the first length multiplied by the second time unit or the second length multiplied by the second time unit; The first length and the second length are both integer multiples of 16, 32, 64, 128 or 256, the first length and the second length are not equal, the second time unit is m / (first subcarrier spacing*first value), the first subcarrier spacing is one of 480kHz, 960kHz, 1920kHz, 3840kHz or 7680kHz, the first value is one of 2048, 4096, 8192, 16384 or 32768, and m is a positive integer.

13. The method according to claim 12, characterized in that: The number of second symbols in the first time unit is N1, the number of third symbols in the first time unit is N2, the second symbol is a symbol whose cyclic prefix length is the first length multiplied by the second time unit among the multiple first symbols, and the third symbol is a symbol whose cyclic prefix length is the second length multiplied by the second time unit among the multiple first symbols, wherein N1 and N2 are integers greater than or equal to zero.

14. The method according to claim 13, characterized in that: The first N1 consecutive symbols in the first time unit are the second symbol, and the last N2 consecutive symbols in the first time unit are the third symbol.

15. The method according to claim 13, characterized in that: The first N3 consecutive symbols in the first time unit are the second symbol, the last N4 consecutive symbols in the first time unit are the second symbol, and the N2 third symbols are consecutive in the first time unit. Among them, N3+N4=N1.

16. The method according to claim 13, characterized in that: The first time unit is composed of a continuous third time unit, the first symbol of the third time unit is the second symbol, and the remaining symbols of the third time unit are floor(N1 / N2) third symbols, where floor means rounding down and N1 is greater than N2.

17. The method according to any one of claims 12 to 16, characterized in that The first length multiplied by the second time unit is greater than 50 nanoseconds; the second length multiplied by the second time unit is greater than 50 nanoseconds.

18. The method according to any one of claims 12 to 17, characterized in that The first length is one of 208, 256, 272, 288, 320, 352, 368, 384, 448, 512, 576, 608, 624, 640, 704, 720, 768, 800, 816, 832, 864, 896, 912, 1024, 1088, 1104, 1120, 1152, 1216 or 1232; the N1 is one of 142, 163, 140, 174, 138, 129, 19 2,150,173,124,160,178,168,183,141,120,159,180,190,195,170,185,186,144,189,171,128,188,198,203,136,172,199,164,112,204,210,213,156,132,205,130,175,208,216,220,222,223,165 or 201; the second length is 224,240,272,288,304,320,352,384,400,416,432,448,464,480,512,544,576,592,608,640,656,672,688,704,736,752,768,784,800,832,848,864,880,896,928,944,960,976,1 024,1040,1056,1088,1120,1136,1152,1184,1216,1248,1264,1280,1296,1312,1344 or 1360; N2 is one of 168,176,136,160,102,51,120,92,144,116,156,114,138,132,192,140,180,200,128 or 108.

19. The method according to any one of claims 12 to 17, characterized in that The N1 is 80, the N2 is 120, the first length is 800, and the second length is 832; or, The N1 is 80, the N2 is 120, the first length is 512, and the second length is 1024.

20. A communication device, characterized in that: include: a transceiver unit configured to send or receive a first transmission on at least one first symbol; The at least one first symbol is located in a first time unit, the first time unit is composed of a plurality of first symbols, the number of first symbols contained in the first time unit is N, N is equal to the product of at least 3 prime numbers, and the duration of the first time unit is 1 divided by 2 u milliseconds, where u is a positive integer less than or equal to 8.

21. The device according to claim 20, characterized in that The cyclic prefix length of the plurality of first symbols is the first length multiplied by the second time unit or the second length multiplied by the second time unit; The first length and the second length are both integer multiples of 16, 32, 64, 128 or 256, the first length and the second length are not equal, the second time unit is m / (first subcarrier spacing*first value), the first subcarrier spacing is one of 480kHz, 960kHz, 1920kHz, 3840kHz or 7680kHz, the first value is one of 2048, 4096, 8192, 16384 or 32768, and m is a positive integer.

22. The device according to claim 21, characterized in that: The number of second symbols in the first time unit is N1, the number of third symbols in the first time unit is N2, the second symbol is a symbol whose cyclic prefix length is the first length multiplied by the second time unit among the multiple first symbols, and the third symbol is a symbol whose cyclic prefix length is the second length multiplied by the second time unit among the multiple first symbols, wherein N1 and N2 are integers greater than or equal to zero.

23. The device according to claim 22, characterized in that: The first N1 consecutive symbols in the first time unit are the second symbol, and the last N2 consecutive symbols in the first time unit are the third symbol.

24. The device according to claim 22, characterized in that: The first N3 consecutive symbols in the first time unit are the second symbol, the last N4 consecutive symbols in the first time unit are the second symbol, and the N2 third symbols are consecutive in the first time unit. Among them, N3+N4=N1.

25. The device according to claim 22, characterized in that: The first time unit is composed of a continuous third time unit, the first symbol of the third time unit is the second symbol, and the remaining symbols of the third time unit are floor(N1 / N2) third symbols, where floor means rounding down and N1 is greater than N2.

26. The device according to any one of claims 21 to 25, characterized in that The first length multiplied by the second time unit is greater than 50 nanoseconds; the second length multiplied by the second time unit is greater than 50 nanoseconds.

27. The device according to any one of claims 21 to 26, characterized in that The first length is one of 208, 256, 272, 288, 320, 352, 368, 384, 448, 512, 576, 608, 624, 640, 704, 720, 768, 800, 816, 832, 864, 896, 912, 1024, 1088, 1104, 1120, 1152, 1216 or 1232; the N1 is one of 142, 163, 140, 174, 138, 129, 19 2,150,173,124,160,178,168,183,141,120,159,180,190,195,170,185,186,144,189,171,128,188,198,203,136,172,199,164,112,204,210,213,156,132,205,130,175,208,216,220,222,223,165 or 201; the second length is 224,240,272,288,304,320,352,384,400,416,432,448,464,480,512,544,576,592,608,640,656,672,688,704,736,752,768,784,800,832,848,864,880,896,928,944,960,976,1 024,1040,1056,1088,1120,1136,1152,1184,1216,1248,1264,1280,1296,1312,1344 or 1360; N2 is one of 168,176,136,160,102,51,120,92,144,116,156,114,138,132,192,140,180,200,128 or 108.

28. The device according to any one of claims 21 to 26, characterized in that The N1 is 80, the N2 is 120, the first length is 800, and the second length is 832; or, The N1 is 80, the N2 is 120, the first length is 512, and the second length is 1024.

29. A communication device, characterized in that: include: a transceiver unit configured to send or receive a first transmission on at least one first symbol; The at least one first symbol is located in a first time unit, the first time unit consists of multiple first symbols, the number of first symbols contained in the first time unit is N, and N is one of 184, 189, 192, 196, 198, 200, 204, 208, 210, 216, 220, 224, 225 or 228.

30. The device according to claim 29, characterized in that: The duration of the first time unit is 1 divided by 2 u milliseconds, where u is a positive integer less than or equal to 8.

31. The device according to claim 29 or 30, characterized in that: The cyclic prefix length of the plurality of first symbols is the first length multiplied by the second time unit or the second length multiplied by the second time unit; The first length and the second length are both integer multiples of 16, 32, 64, 128 or 256, the first length and the second length are not equal, the second time unit is m / (first subcarrier spacing*first value), the first subcarrier spacing is one of 480kHz, 960kHz, 1920kHz, 3840kHz or 7680kHz, the first value is one of 2048, 4096, 8192, 16384 or 32768, and m is a positive integer.

32. The device according to claim 31, characterized in that: The number of second symbols in the first time unit is N1, the number of third symbols in the first time unit is N2, the second symbol is a symbol whose cyclic prefix length is the first length multiplied by the second time unit among the multiple first symbols, and the third symbol is a symbol whose cyclic prefix length is the second length multiplied by the second time unit among the multiple first symbols, wherein N1 and N2 are integers greater than or equal to zero.

33. The device according to claim 32, characterized in that: The first N1 consecutive symbols in the first time unit are the second symbol, and the last N2 consecutive symbols in the first time unit are the third symbol.

34. The device according to claim 32, characterized in that: The first N3 consecutive symbols in the first time unit are the second symbol, the last N4 consecutive symbols in the first time unit are the second symbol, and the N2 third symbols are consecutive in the first time unit. Among them, N3+N4=N1.

35. The device according to claim 32, characterized in that: The first time unit is composed of a continuous third time unit, the first symbol of the third time unit is the second symbol, and the remaining symbols of the third time unit are floor(N1 / N2) third symbols, where floor means rounding down and N1 is greater than N2.

36. The device according to any one of claims 31 to 35, characterized in that The first length multiplied by the second time unit is greater than 50 nanoseconds; the second length multiplied by the second time unit is greater than 50 nanoseconds.

37. The device according to any one of claims 31 to 36, characterized in that The first length is one of 208, 256, 272, 288, 320, 352, 368, 384, 448, 512, 576, 608, 624, 640, 704, 720, 768, 800, 816, 832, 864, 896, 912, 1024, 1088, 1104, 1120, 1152, 1216 or 1232; the N1 is one of 142, 163, 140, 174, 138, 129, 19 2,150,173,124,160,178,168,183,141,120,159,180,190,195,170,185,186,144,189,171,128,188,198,203,136,172,199,164,112,204,210,213,156,132,205,130,175,208,216,220,222,223,165 or 201; the second length is 224,240,272,288,304,320,352,384,400,416,432,448,464,480,512,544,576,592,608,640,656,672,688,704,736,752,768,784,800,832,848,864,880,896,928,944,960,976,1 024,1040,1056,1088,1120,1136,1152,1184,1216,1248,1264,1280,1296,1312,1344 or 1360; N2 is one of 168,176,136,160,102,51,120,92,144,116,156,114,138,132,192,140,180,200,128 or 108.

38. The device according to any one of claims 31 to 36, characterized in that The N1 is 80, the N2 is 120, the first length is 800, and the second length is 832; or, The N1 is 80, the N2 is 120, the first length is 512, and the second length is 1024.

39. A communication device, characterized in that: The device comprises at least one processor and an interface circuit, wherein the interface circuit is used to provide the at least one processor with input or output of instructions and / or data, and when the at least one processor executes the above instructions, the device implements the method according to any one of claims 1 to 19.

40. A computer-readable storage medium comprising instructions, which, when executed on a computer, causes the computer to perform the method according to any one of claims 1 to 19.

41. A computer program product comprising instructions which, when executed on a computer, cause the computer to perform the method according to any one of claims 1 to 19.

42. A chip, characterized in that: The method comprises a processor and a communication interface, wherein the processor is used to read instructions or computer programs to execute the method according to any one of claims 1 to 19.

43. A communication system, characterized in that: A communication device comprising sending the first transmission as claimed in any one of claims 20 to 38, and a communication device comprising receiving the first transmission as claimed in any one of claims 20 to 38.

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