Communication method, communication device, communication system, and storage medium

Abstract

This disclosure relates to a communication method, communication device, communication system, and storage medium. The communication method includes: receiving a first signal, the first signal comprising at least one of the following: a first part and a second part, wherein the first part is used to indicate the transmission start position of a first channel, and the second part is used to indicate clock reference information of the first channel; and determining at least one of the transmission start position and clock reference information of the first channel based on the first signal. This reduces the indication overhead of the transmission start position and clock reference information of the first channel, and supports improving the indication accuracy of the transmission start position and clock reference information of the first channel, thereby increasing the data transmission rate and ensuring system performance.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a communication method, communication device, communication system and storage medium. Background Technology

[0002] With social and economic development, the demand for Internet of Things (IoT) communication is gradually emerging. The 3rd Generation Partnership Project (3GPP) has standardized a series of IoT technologies, including Machine Type Communications (MTC), Narrow Band IoT (NB-IoT), and Reduced Capability UE (RedCap). MTC and NB-IoT employ technologies such as low bandwidth, single antenna, reduced peak data rate, half-duplex, and reduced transmit power, significantly reducing the cost of IoT terminals. Furthermore, the introduction of enhanced discontinuous reception (eDRX) and power-saving mode (PSM) greatly reduces the power consumption of IoT terminals. Simultaneously, MTC and NB-IoT can support a large number of IoT terminals accessing the network, thus meeting the demand for massive connectivity. In recent years, IoT based on NB-IoT and enhanced Machine Type Communications (eMTC) technologies has been widely tested and commercialized, such as in smart grids, smart parking, intelligent transportation / logistics, and smart energy management systems. It involves many vertical fields such as smart cities, smart homes, and smart factories, thus rapidly promoting the upgrading and transformation of traditional industries. Summary of the Invention

[0003] This disclosure provides a communication method, communication device, communication system, and storage medium.

[0004] A first aspect of this disclosure provides a communication method performed by a first device, comprising: receiving a first signal, the first signal including at least one of the following: a first part and a second part, wherein the first part is used to indicate the transmission start position of a first channel, and the second part is used to indicate clock reference information of the first channel; and determining at least one of the transmission start position and clock reference information of the first channel based on the first signal.

[0005] A second aspect of this disclosure provides a communication method performed by a second device, comprising: sending a first signal, the first signal including at least one of the following: a first part and a second part, wherein the first part is used to indicate the transmission start position of a first channel, the second part is used to indicate clock reference information of the first channel, and the first signal is used to determine at least one of the transmission start position and clock reference information of the first channel.

[0006] A third aspect of this disclosure provides a first device, comprising: a transceiver module for receiving a first signal, the first signal including at least one of the following: a first part and a second part, wherein the first part is used to indicate the transmission start position of a first channel and the second part is used to indicate clock reference information of the first channel; and a processing module for determining at least one of the transmission start position and clock reference information of the first channel based on the first signal.

[0007] A fourth aspect of this disclosure provides a second device, the second device comprising: a transceiver module for transmitting a first signal, the first signal comprising at least one of the following: a first part and a second part, wherein the first part is used to indicate the transmission start position of a first channel, the second part is used to indicate clock reference information of the first channel, and the first signal is used to determine at least one of the transmission start position and clock reference information of the first channel.

[0008] A fifth aspect of this disclosure provides a communication device comprising: one or more processors; wherein the processors are configured to perform the method as described in the first aspect above, or to perform the method as described in the second aspect above.

[0009] A sixth aspect of this disclosure provides a communication system including a first device and a second device, wherein the first device is configured to perform the method as described in the first aspect above, and the second device is configured to perform the method as described in the second aspect above.

[0010] A seventh aspect of this disclosure provides a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the method described in the first aspect above, or to perform the method described in the second aspect above.

[0011] An eighth aspect embodiment of this disclosure provides a computer program product including a computer program that, when executed by a processor, implements the method as described in the first aspect above, or implements the method as described in the second aspect above.

[0012] The solution proposed in this disclosure, in the above embodiments, involves receiving a first signal, which includes at least one of the following: a first part and a second part. The first part indicates the transmission start position of a first channel, and the second part indicates clock reference information of the first channel. Based on the first signal, at least one of the transmission start position and clock reference information of the first channel is determined. This reduces the overhead of indicating the transmission start position and clock reference information of the first channel, improves the accuracy of indicating the transmission start position and clock reference information of the first channel, increases the data transmission rate, and ensures system performance. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments or background art of this disclosure, the accompanying drawings used in the embodiments or background art of this disclosure will be described below.

[0014] Figure 1A This is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure;

[0015] Figure 1B This is a schematic diagram of the architecture of another communication system according to an embodiment of the present disclosure;

[0016] Figure 1C This is a schematic diagram of the basic inventory process of the A-IoT device in this embodiment of the disclosure;

[0017] Figure 1D This is a schematic diagram of the R2D transmission frame structure in an embodiment of this disclosure;

[0018] Figure 1E This is a schematic diagram of the R2D synchronization head structure in an embodiment of this disclosure;

[0019] Figure 2A This is an interactive schematic diagram illustrating a communication method according to an embodiment of the present disclosure;

[0020] Figure 2B This is an interactive schematic diagram illustrating a communication method according to another embodiment of the present disclosure;

[0021] Figure 3 This is an interactive schematic diagram illustrating a communication method according to another embodiment of the present disclosure;

[0022] Figure 4 This is an interactive schematic diagram illustrating a communication method according to yet another embodiment of the present disclosure;

[0023] Figure 5A This is a schematic diagram of a fixed-length synchronization head waveform corresponding to different m values ​​in the embodiments of this disclosure;

[0024] Figure 5BThis is a schematic diagram of another fixed-length synchronization head waveform corresponding to different m values ​​in the embodiments of this disclosure;

[0025] Figure 5C This is a variable-length synchronization head waveform corresponding to different m values ​​in the embodiments of this disclosure;

[0026] Figure 5D This is another variable-length synchronization head waveform corresponding to different m values ​​in the embodiments of this disclosure;

[0027] Figure 6 This is a schematic diagram of the structure of the communication device proposed in the embodiments of this disclosure;

[0028] Figure 7A This is a schematic diagram of the structure of the communication device proposed in the embodiments of this disclosure;

[0029] Figure 7B This is a schematic diagram of the chip structure proposed in the embodiments of this disclosure. Detailed Implementation

[0030] This disclosure provides communication methods, communication devices, communication systems, and storage media.

[0031] In a first aspect, embodiments of this disclosure provide a communication method performed by a first device, the method comprising: receiving a first signal, the first signal comprising at least one of the following: a first part and a second part, wherein the first part is used to indicate the transmission start position of a first channel, and the second part is used to indicate clock reference information of the first channel; and determining at least one of the transmission start position and clock reference information of the first channel based on the first signal.

[0032] In the above embodiments, by receiving a first signal, which includes at least one of the following: a first part and a second part, wherein the first part is used to indicate the transmission start position of the first channel, and the second part is used to indicate the clock reference information of the first channel, and at least one of the transmission start position and clock reference information of the first channel is determined based on the first signal. This reduces the indication overhead of the transmission start position and clock reference information of the first channel, and supports improving the indication accuracy of the transmission start position and clock reference information of the first channel, thereby increasing the data transmission rate and ensuring system performance.

[0033] In conjunction with some embodiments of the first aspect, in some embodiments, the duration corresponding to the first part is M time units, and / or the duration corresponding to the second part is less than or equal to N time units, where M and N are positive numbers.

[0034] In the above embodiments, the accuracy of the indication of the transmission start position and clock reference information of the first signal sent by the second device to the first channel can be ensured, and the values ​​of M and N can be personalized according to actual application requirements, thereby improving the flexibility of indication and ensuring system performance.

[0035] In conjunction with some embodiments of the first aspect, in some embodiments, the first portion maps to a first pattern, the first pattern comprising: sequentially adjacent first modulation symbols, second modulation symbols, third modulation symbols, and fourth modulation symbols; wherein,

[0036] The first modulation symbol and the third modulation symbol correspond to the first modulation information;

[0037] The second and fourth modulation symbols correspond to the second modulation information, while the first and second modulation information are different.

[0038] In the above embodiments, it is possible to accurately indicate the transmission start position of the first channel without consuming too much indication overhead, thereby improving the indication effect.

[0039] In conjunction with some embodiments of the first aspect, in some embodiments, the first modulation symbol corresponds to a first sub-duration, the second modulation symbol corresponds to a second sub-duration, the third modulation symbol corresponds to a third sub-duration, and the fourth modulation symbol corresponds to a fourth sub-duration; wherein,

[0040] The durations of the first, second, and third pieces are the same;

[0041] The duration of the fourth sub-sub is the sum of the durations of the first, second, and third sub-sub-sub.

[0042] In the above embodiments, it is possible to accurately indicate the transmission start position of the first channel without consuming too much indication overhead, thereby improving the indication effect.

[0043] In conjunction with some embodiments of the first aspect, in some embodiments, the first portion maps to a first pattern, the first pattern comprising: sequentially adjacent first modulation symbols and second modulation symbols; wherein,

[0044] The first modulation symbol corresponds to the first modulation information, and the second modulation symbol corresponds to the second modulation information. The first modulation information and the second modulation information are different.

[0045] In the above embodiments, this enables accurate indication of the transmission start position of the first channel without incurring excessive indication overhead, thus improving the indication effect. Furthermore, it enhances the flexibility of indicating the transmission start position of the first channel, making the indication method effectively applicable to personalized communication scenarios.

[0046] In conjunction with some embodiments of the first aspect, in some embodiments, the first modulation symbol corresponds to a first sub-duration and the second modulation symbol corresponds to a second sub-duration; wherein the first sub-duration and the second sub-duration are different, and the first sub-duration is less than the second sub-duration.

[0047] In the above embodiments, this enables accurate indication of the transmission start position of the first channel without incurring excessive indication overhead, thus improving the indication effect. Furthermore, it enhances the flexibility of indicating the transmission start position of the first channel, making the indication method effectively applicable to personalized communication scenarios.

[0048] In conjunction with some embodiments of the first aspect, in some embodiments, the second part maps to a second pattern, the second pattern including: at least one fifth modulation symbol and at least one sixth modulation symbol; wherein,

[0049] A fifth modulation symbol and a sixth modulation symbol are adjacent to each other; different fifth modulation symbols are not adjacent to each other; different sixth modulation symbols are not adjacent to each other.

[0050] The fifth modulation symbol corresponds to the first modulation information, and the sixth modulation symbol corresponds to the second modulation information. The first modulation information and the second modulation information are different.

[0051] In the above embodiments, this provides richer transition edges, making it easier for the first device to obtain more accurate clock reference information for the first channel, thereby making the indicated clock reference information more effective and supporting more accurate clock calibration.

[0052] In conjunction with some embodiments of the first aspect, in some embodiments, the duration corresponding to the second part is equal to N time units; wherein,

[0053] The number of fifth modulation symbols is as agreed upon in the protocol; and / or

[0054] The number of sixth modulation symbols is as agreed upon in the protocol; and / or

[0055] The total number of the fifth and sixth modulation symbols is as agreed upon in the protocol.

[0056] In the above embodiments, this enables the first device and the second device to have a consistent understanding of the number of various modulation symbols contained in the second pattern, thereby improving the flexibility of the clock reference information indication of the first channel while maximizing the accuracy of the clock reference information indication of the first channel.

[0057] In conjunction with some embodiments of the first aspect, in some embodiments, the duration corresponding to the second part is equal to N time units; wherein,

[0058] The total number of the fifth and sixth modulation symbols is the product of the first value and N;

[0059] The number of the fifth modulation symbol is equal to the value obtained by rounding up the ratio of the product to 2;

[0060] The number of the sixth modulation symbol is equal to the value obtained by rounding down the ratio of the product to 2.

[0061] In the above embodiments, this enables the first device and the second device to have a consistent understanding of the number of various modulation symbols contained in the second pattern, thereby improving the flexibility of the clock reference information indication of the first channel while maximizing the accuracy of the clock reference information indication of the first channel.

[0062] In conjunction with some embodiments of the first aspect, in some embodiments, the duration corresponding to the second part is less than or equal to N time units, wherein the number of the fifth modulation symbol is two and the number of the sixth modulation symbol is one.

[0063] In the above embodiments, the overhead of clock reference information for the first channel can be greatly reduced, the data transmission rate can be improved, and system performance can be ensured.

[0064] In conjunction with some embodiments of the first aspect, in some embodiments, the fifth modulation symbol corresponds to the fifth sub-duration and the sixth modulation symbol corresponds to the sixth sub-duration; wherein,

[0065] The duration of the fifth sub-sub is the same as that of the sixth sub-sub, and the durations of the fifth and sixth sub-sub are negatively correlated with the first value.

[0066] In the above embodiments, it is possible to select an appropriate value of m based on the actual communication scenario requirements, thereby making it suitable for personalized communication scenarios. In all possible communication scenarios, it is possible to ensure that the indication overhead of the clock reference information of the first channel is reduced.

[0067] In conjunction with some embodiments of the first aspect, in some embodiments, the time unit includes: Orthogonal Frequency Division Multiplexing (OFDM) symbols.

[0068] In the above embodiments, it is possible to accurately indicate at least one of the transmission start position and clock reference information of the first channel using OFDM symbols as reference time units. While ensuring the accuracy of the indication, the indication overhead can be greatly reduced, thereby ensuring system performance.

[0069] In conjunction with some embodiments of the first aspect, in some embodiments, the first part maps to a first sequence, the first sequence comprising: a first part sequence, a second part sequence, a third part sequence, and a fourth part sequence that are sequentially adjacent, wherein the first part sequence comprises X first bits, the second part sequence comprises X second bits, the third part sequence comprises X first bits, and the fourth part sequence comprises Y second bits, where X and Y are positive integers, and the first bits and second bits are different.

[0070] In the above embodiments, it is possible to accurately indicate the transmission start position of the first channel without consuming excessive indication overhead, thereby improving the indication effect.

[0071] In conjunction with some embodiments of the first aspect, in some embodiments, the duration corresponding to the first bit is a first reference duration, the duration corresponding to the second bit is a second reference duration, and the first reference duration and the second reference duration are the same.

[0072] In the above embodiments, at least one of the first sequence and the second sequence in the first signal can be sent to the first device based on the same reference duration, thereby greatly reducing the indication complexity of indicating the transmission start position and clock reference information of the first channel through the sequence in the first signal, and reducing the indication overhead while ensuring the indication accuracy.

[0073] In conjunction with some embodiments of the first aspect, in some embodiments, wherein,

[0074] Y equals 3 times X.

[0075] In the above embodiments, it is possible to accurately indicate the transmission start position of the first channel without consuming excessive indication overhead, thereby improving the indication effect.

[0076] In conjunction with some embodiments of the first aspect, in some embodiments, the first part maps to a first sequence, the first sequence comprising: a first part sequence and a second part sequence that are sequentially adjacent, wherein the first part sequence comprises X first bits and the second part sequence comprises Y second bits, X and Y are positive integers, and the first bits and the second bits are different.

[0077] In the above embodiments, this enables accurate indication of the transmission start position of the first channel without incurring excessive indication overhead, thus improving the indication effect. Furthermore, it enhances the flexibility of indicating the transmission start position of the first channel, making the indication method effectively applicable to personalized communication scenarios.

[0078] In conjunction with some embodiments of the first aspect, in some embodiments, wherein,

[0079] X is less than or equal to Y.

[0080] In the above embodiments, this greatly improves the accuracy of the transmission start position indication of the first channel, ensuring that the first device can correctly parse the transmission start position of the first channel.

[0081] In conjunction with some embodiments of the first aspect, in some embodiments, the second part maps to a second sequence, the second sequence comprising: at least one fifth part sequence and at least one sixth part sequence, wherein the fifth part sequence comprises P first bits, and the sixth part sequence comprises P second bits, where P is a positive integer; wherein...

[0082] A fifth part sequence and a sixth part sequence are adjacent, different fifth part sequences are not adjacent, and different sixth part sequences are not adjacent.

[0083] In the above embodiments, this provides richer transition edges, making it easier for the first device to obtain more accurate clock reference information for the first channel, thereby making the indicated clock reference information more effective and supporting more accurate clock calibration.

[0084] In conjunction with some embodiments of the first aspect, in some embodiments, the duration corresponding to the second part is equal to N time units; wherein,

[0085] The number of sequences in Part 5 is as agreed upon in the protocol; and / or

[0086] The number of sequences in Part 6 is as agreed upon in the protocol; and / or

[0087] The total number of sequences in Part 5 and Part 6 is as agreed upon in the protocol.

[0088] In the above embodiments, this enables the first device and the second device to have a consistent understanding of the number of various different partial sequences contained in the second sequence, thereby improving the flexibility of the clock reference information indication of the first channel while maximizing the accuracy of the clock reference information indication of the first channel.

[0089] In conjunction with some embodiments of the first aspect, in some embodiments, the duration corresponding to the second part is equal to N time units; wherein, the total number of the fifth part sequence and the sixth part sequence is positively correlated with the first value, and the number of the fifth part sequence is greater than or equal to the number of the sixth part sequence.

[0090] In the above embodiments, the first value can be customized according to the needs of the actual communication scenario, and the number of various possible transition edges can be flexibly obtained based on different first values. While enriching the transition edges, it can also greatly improve the flexibility of the clock reference information indication of the first channel, which is suitable for personalized communication scenarios.

[0091] In conjunction with some embodiments of the first aspect, in some embodiments, the duration corresponding to the second part is less than or equal to N time units, wherein the number of sequences in the fifth part is two, and the number of sequences in the sixth part is one.

[0092] In the above embodiments, the overhead of clock reference information for the first channel can be greatly reduced, the data transmission rate can be improved, and system performance can be ensured.

[0093] In conjunction with some embodiments of the first aspect, in some embodiments, the first value is at least one value in a first set of values; or, the first value is at least one value in a second set of values, the second set of values ​​being a subset of the first set of values.

[0094] In the above embodiments, the first value set or the second value set can be configured according to the needs of the actual communication scenario. When the first value in the first value set or the second value set is used to support the transmission of the first signal, the flexibility of the transmission start position and clock reference information indication of the first channel can be greatly improved, and it is effectively applicable to personalized communication scenarios.

[0095] Secondly, embodiments of this disclosure provide a communication method performed by a second device, the method comprising: sending a first signal, the first signal comprising at least one of the following: a first part and a second part, wherein the first part is used to indicate the transmission start position of a first channel, the second part is used to indicate clock reference information of the first channel, and the first signal is used to determine at least one of the transmission start position and clock reference information of the first channel.

[0096] In the above embodiments, by sending a first signal, the first signal includes at least one of the following: a first part and a second part, wherein the first part is used to indicate the transmission start position of the first channel, and the second part is used to indicate the clock reference information of the first channel. The first signal is used to determine at least one of the transmission start position and the clock reference information of the first channel. Therefore, the overhead of indicating the transmission start position and clock reference information of the first channel can be reduced, and the accuracy of indicating the transmission start position and clock reference information of the first channel can be improved, thereby increasing the data transmission rate and ensuring system performance.

[0097] In conjunction with some embodiments of the second aspect, in some embodiments, the duration corresponding to the first part is M time units, and / or the duration corresponding to the second part is less than or equal to N time units, where M and N are positive numbers.

[0098] In conjunction with some embodiments of the second aspect, in some embodiments, the first part maps to a first pattern, the first pattern including: a first modulation symbol, a second modulation symbol, a third modulation symbol, and a fourth modulation symbol that are sequentially adjacent; wherein,

[0099] The first modulation symbol and the third modulation symbol correspond to the first modulation information;

[0100] The second and fourth modulation symbols correspond to the second modulation information, while the first and second modulation information are different.

[0101] In conjunction with some embodiments of the second aspect, in some embodiments, the first modulation symbol corresponds to a first sub-duration, the second modulation symbol corresponds to a second sub-duration, the third modulation symbol corresponds to a third sub-duration, and the fourth modulation symbol corresponds to a fourth sub-duration; wherein,

[0102] The durations of the first, second, and third pieces are the same;

[0103] The duration of the fourth sub-sub is the sum of the durations of the first, second, and third sub-sub-sub.

[0104] In conjunction with some embodiments of the second aspect, in some embodiments, the first portion maps to a first pattern, the first pattern comprising: sequentially adjacent first modulation symbols and second modulation symbols; wherein,

[0105] The first modulation symbol corresponds to the first modulation information, and the second modulation symbol corresponds to the second modulation information. The first modulation information and the second modulation information are different.

[0106] In conjunction with some embodiments of the second aspect, in some embodiments, the first modulation symbol corresponds to a first sub-duration and the second modulation symbol corresponds to a second sub-duration; wherein the first sub-duration and the second sub-duration are different, and the first sub-duration is less than the second sub-duration.

[0107] In conjunction with some embodiments of the second aspect, in some embodiments, the second part maps to a second pattern, the second pattern including: at least one fifth modulation symbol and at least one sixth modulation symbol; wherein,

[0108] A fifth modulation symbol and a sixth modulation symbol are adjacent to each other; different fifth modulation symbols are not adjacent to each other; different sixth modulation symbols are not adjacent to each other.

[0109] The fifth modulation symbol corresponds to the first modulation information, and the sixth modulation symbol corresponds to the second modulation information. The first modulation information and the second modulation information are different.

[0110] In conjunction with some embodiments of the second aspect, in some embodiments, the duration corresponding to the second part is equal to N time units; wherein,

[0111] The number of fifth modulation symbols is as agreed upon in the protocol; and / or

[0112] The number of sixth modulation symbols is as agreed upon in the protocol; and / or

[0113] The total number of the fifth and sixth modulation symbols is as agreed upon in the protocol.

[0114] In conjunction with some embodiments of the second aspect, in some embodiments, the duration corresponding to the second part is equal to N time units; wherein,

[0115] The total number of the fifth and sixth modulation symbols is the product of the first value and N;

[0116] The number of the fifth modulation symbol is equal to the value obtained by rounding up the ratio of the product to 2;

[0117] The number of the sixth modulation symbol is equal to the value obtained by rounding down the ratio of the product to 2.

[0118] In conjunction with some embodiments of the second aspect, in some embodiments, the duration corresponding to the second part is less than or equal to N time units, wherein the number of the fifth modulation symbol is two and the number of the sixth modulation symbol is one.

[0119] In conjunction with some embodiments of the second aspect, in some embodiments, the fifth modulation symbol corresponds to the fifth sub-duration and the sixth modulation symbol corresponds to the sixth sub-duration; wherein,

[0120] The duration of the fifth sub-sub is the same as that of the sixth sub-sub, and the durations of the fifth and sixth sub-sub are negatively correlated with the first value.

[0121] In conjunction with some embodiments of the second aspect, in some embodiments, the time unit includes: Orthogonal Frequency Division Multiplexing (OFDM) symbols.

[0122] In conjunction with some embodiments of the second aspect, in some embodiments, the first part maps to the first sequence, the first sequence including: a first part sequence, a second part sequence, a third part sequence, and a fourth part sequence that are sequentially adjacent, wherein the first part sequence includes X first bits, the second part sequence includes X second bits, the third part sequence includes X first bits, and the fourth part sequence includes Y second bits, where X and Y are positive integers, and the first bits and second bits are different.

[0123] In conjunction with some embodiments of the second aspect, in some embodiments, the duration corresponding to the first bit is a first reference duration, the duration corresponding to the second bit is a second reference duration, and the first reference duration and the second reference duration are the same.

[0124] In conjunction with some embodiments of the second aspect, in some embodiments, wherein,

[0125] Y equals 3 times X.

[0126] In conjunction with some embodiments of the second aspect, in some embodiments, the first part maps to a first sequence, the first sequence comprising: a first part sequence and a second part sequence that are sequentially adjacent, wherein the first part sequence comprises X first bits and the second part sequence comprises Y second bits, X and Y are positive integers, and the first bits and the second bits are different.

[0127] In conjunction with some embodiments of the second aspect, in some embodiments, wherein,

[0128] X is less than or equal to Y.

[0129] In conjunction with some embodiments of the second aspect, in some embodiments, the second part maps to a second sequence, the second sequence comprising: at least one fifth part sequence and at least one sixth part sequence, wherein the fifth part sequence comprises P first bits, and the sixth part sequence comprises P second bits, where P is a positive integer; wherein...

[0130] A fifth part sequence and a sixth part sequence are adjacent, different fifth part sequences are not adjacent, and different sixth part sequences are not adjacent.

[0131] In conjunction with some embodiments of the second aspect, in some embodiments, the duration corresponding to the second part is equal to N time units; wherein,

[0132] The number of sequences in Part 5 is as agreed upon in the protocol; and / or

[0133] The number of sequences in Part 6 is as agreed upon in the protocol; and / or

[0134] The total number of sequences in Part 5 and Part 6 is as agreed upon in the protocol.

[0135] In conjunction with some embodiments of the second aspect, in some embodiments, the duration corresponding to the second part is equal to N time units; wherein, the total number of the fifth part sequence and the sixth part sequence is positively correlated with the first value, and the number of the fifth part sequence is greater than or equal to the number of the sixth part sequence.

[0136] In conjunction with some embodiments of the second aspect, in some embodiments, the duration corresponding to the second part is less than or equal to N time units, wherein the number of the fifth part sequence is two and the number of the sixth part sequence is one.

[0137] In conjunction with some embodiments of the second aspect, in some embodiments, the first value is at least one value in a first set of values; or, the first value is at least one value in a second set of values, the second set of values ​​being a subset of the first set of values.

[0138] Thirdly, embodiments of this disclosure provide a first device, the first device comprising: a transceiver module, configured to receive a first signal, the first signal comprising at least one of the following: a first part and a second part, wherein the first part is configured to indicate the transmission start position of a first channel and the second part is configured to indicate clock reference information of the first channel; and a processing module, configured to determine at least one of the transmission start position and clock reference information of the first channel based on the first signal.

[0139] Fourthly, embodiments of this disclosure provide a second device, the second device comprising: a transceiver module, configured to transmit a first signal, the first signal comprising at least one of the following: a first part and a second part, wherein the first part is configured to indicate the transmission start position of a first channel, the second part is configured to indicate clock reference information of the first channel, and the first signal is configured to determine at least one of the transmission start position and clock reference information of the first channel.

[0140] Fifthly, embodiments of this disclosure provide a communication device, which includes one or more processors; wherein the communication device is used to execute the first aspect and optional implementations of the first aspect, or to execute the second aspect and optional implementations of the second aspect.

[0141] In a sixth aspect, embodiments of this disclosure provide a communication system comprising: a first device and a second device; wherein the first device is configured to perform the method described in the first aspect and optional implementations thereof, and the second device is configured to perform the method described in the second aspect and optional implementations thereof.

[0142] In a seventh aspect, embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the method described in the first aspect and its optional implementations, or to perform the method described in the second aspect and its optional implementations.

[0143] Eighthly, embodiments of this disclosure provide a program product that, when executed by a communication device, causes the communication device to perform the method described in the first aspect and its optional implementations, or to perform the method described in the second aspect and its optional implementations.

[0144] In a ninth aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the method as described in the first aspect and optional implementations of the first aspect, or to perform the method as described in the second aspect and optional implementations of the second aspect.

[0145] In a tenth aspect, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the method described according to the first aspect and optional implementations thereof, or configured to perform the method described according to the second aspect and optional implementations thereof.

[0146] It is understood that the aforementioned first device, second device, communication device, communication system, storage medium, program product, computer program, chip, or chip system are all used to perform the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects that can be achieved can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0147] This disclosure provides a communication method, a communication device, a communication system, and a storage medium. In some embodiments, the terms "communication method" and "information processing method," "communication control method," etc., can be used interchangeably; the terms "communication method apparatus" and "information processing apparatus," "communication control apparatus," etc., can be used interchangeably; and the terms "transmission system" and "information processing system," "communication system," etc., can be used interchangeably.

[0148] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0149] In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0150] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0151] In this disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the," "the aforementioned," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular or a plural expression.

[0152] In the embodiments disclosed herein, "multiple" refers to two or more.

[0153] In some embodiments, the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0154] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of B); in some embodiments, B (execute B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, C, etc.

[0155] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execution of A regardless of B); in some embodiments, B (execution of B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, C, etc.

[0156] The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0157] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0158] In some embodiments, the terms “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “if…”, “if…”, etc., can be used interchangeably.

[0159] In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.

[0160] In some embodiments, the apparatus and device may be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they may also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "body", etc.

[0161] In some embodiments, "network" can be interpreted as devices included in the network, such as access network devices, core network devices, etc.

[0162] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)," "base station (BS)," "radio base station," or "fixed station." In some embodiments, it may also be understood as "node," "access point," "transmission point (TP)," "reception point (RP)," "transmission / reception point (TRP)," "panel," "antenna panel," "antenna array," "cell," "macro cell," "small cell," "femto cell," "pico cell," "sector," "cellgroup," "serving cell," "carrier," "component carrier," or "bandwidth part (BWP)," etc.

[0163] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)," "user terminal," "Narrowband-Internet of Things (NB-IoT) device," "mobile station (MS)," "mobile terminal (MT)," "subscriber station," "mobile unit," "subscriber unit," "wireless unit," "remote unit," "mobile device," "wireless device," "wireless communication device," "remote device," "mobile subscriber station," "access terminal," "mobile terminal," "wireless terminal," "remote terminal," "handset," "user agent," "mobile client," "client," etc.

[0164] In some embodiments, access network devices, core network devices, or network devices can be replaced by terminals. For example, embodiments of this disclosure can also be applied to structures where communication between access network devices, core network devices, or network devices and terminals is replaced by communication between multiple terminals (e.g., device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, the structure can also be configured such that the terminal has all or part of the functions of the access network device. Furthermore, terms such as "uplink" and "downlink" can be replaced with terms corresponding to communication between terminals (e.g., "sidelink"). For example, uplink channel, downlink channel, etc., can be replaced with sidelink channel, and uplink link, downlink, etc., can be replaced with sidelink link.

[0165] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, core network device, or network device may also be configured to have all or some of the functions of the terminal.

[0166] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0167] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0168] Figure 1A This is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0169] like Figure 1A As shown, the communication system 1100 may include a first A-IoT device 1101 and a second A-IoT device 1102.

[0170] In some embodiments, the first A-IoT device 1101 can be any of a terminal, network device, intermediate node, auxiliary node, etc.

[0171] In some embodiments, the second A-IoT device 1102 can be any of a network device, an intermediate node, an auxiliary node, etc.

[0172] In some embodiments, intermediate nodes may be relays, integrated access backhaul (IAB) nodes, user equipment (UE), repeaters (RP), etc.

[0173] In some embodiments, such as Figure 1A As shown, taking the first A-IoT device 1101 as the terminal and the second A-IoT device 1102 as the base station as an example, the first A-IoT device 1101 and the base station can directly receive and transmit data via downlink (DL) and uplink (UL). The first A-IoT device 1101 can directly connect to the base station (BS) and conduct bidirectional communication. The communication content between the first A-IoT device 1101 and the base station includes data, signaling, etc. Figure 1A Another possible scenario is that base station 1 sends downlink to the first A-IoT device 1101, and the first A-IoT device 1101 sends uplink to base station 2. In this case, the downlink and the corresponding uplink base stations for the same service communication can be different base stations.

[0174] In some embodiments, such as Figure 1B As shown, Figure 1B This is a schematic diagram of the architecture of another communication system according to an embodiment of the present disclosure. Figure 1B Using the second A-IoT device 1102 as an intermediate node, the first A-IoT device 1101 and the base station can also indirectly receive and transmit DL and UL data through the second A-IoT device 1102. The first A-IoT device 1101 can communicate bidirectionally with the intermediate node, and the intermediate node can communicate bidirectionally with the base station according to cellular communication. The intermediate node can be regarded as a relay between the first A-IoT device 1101 and the base station, and the intermediate node supports the ability to communicate with A-IoT devices. The intermediate node bidirectionally transmits data and signaling between the base station and the first A-IoT device 1101 to complete the communication.

[0175] In some embodiments, the terminal includes, but is not limited to, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, tablet computer, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home.

[0176] In some embodiments, the access network device is, for example, a node or device that connects a terminal to a wireless network. The access network device may include, but is not limited to, at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation eNB (ng-eNB), next-generation Node B (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), radio backhaul device, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a Wi-Fi system.

[0177] In some embodiments, the technical solutions of this disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs.

[0178] In some embodiments, the access network device may be composed of a central unit (CU) and a distributed unit (DU). The CU may also be called a control unit. The CU-DU structure can separate the protocol layer of the access network device. Some of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU and centrally controlled by the CU. However, this is not the only possibility.

[0179] In some embodiments, the communication system may further include core network equipment (not shown in the figures). Core network equipment may be a single device comprising one or more network elements, or it may be multiple devices or a group of devices, each comprising all or part of the aforementioned one or more network elements. Network elements may be virtual or physical. The core network may include, for example, at least one of the following: Evolved Packet Core (EPC), 5G Core Network (5GCN), and Next Generation Core (NGC).

[0180] It is understood that the communication system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions proposed in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions proposed in this disclosure are also applicable to similar technical problems.

[0181] The following embodiments of this disclosure can be applied to Figure 1A , Figure 1B The communication system shown, or part of the main body, but not limited to it. Figure 1A , Figure 1B The entities shown are illustrative; a communication system may include... Figure 1A , Figure 1B All or part of the main body, or may include Figure 1A , Figure 1B Other entities besides the main body, the number and form of each entity are arbitrary, each entity can be physical or virtual, the connection relationship between the entities is illustrative, the entities can be unconnected or connected, and the connection can be in any way, it can be a direct connection or an indirect connection, it can be a wired connection or a wireless connection.

[0182] The embodiments disclosed herein can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), 6th generation mobile communication system (6G), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New Radio Access (NX), Future Generation Radio Access (FX), Global System for Mobile Communications (GSM), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, systems utilizing other communication methods, and next-generation systems built upon them, etc. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0183] Optionally, with social and economic development, the demand for IoT communication is gradually emerging. The 3rd Generation Partnership Project (3GPP) has standardized a series of IoT technologies, including Machine Type Communications (MTC), Narrow Band IoT (NB-IoT), and Reduced Capability UE (RedCap). MTC and NB-IoT employ technologies such as low bandwidth, single antenna, reduced peak data rate, half-duplex, and reduced transmit power, significantly reducing the cost of IoT terminals. Furthermore, the introduction of enhanced discontinuous reception (eDRX) and power saving mode (PSM) greatly reduces the power consumption of IoT terminals. Simultaneously, MTC and NB-IoT can support a large number of IoT terminals accessing the network, thus meeting the demand for massive connectivity. In recent years, IoT based on NB-IoT and enhanced Machine Type Communications (eMTC) technologies has been widely tested and commercialized, such as in smart grids, smart parking, intelligent transportation / logistics, and smart energy management systems. It involves many vertical fields such as smart cities, smart homes, and smart factories, thus rapidly promoting the upgrading and transformation of traditional industries.

[0184] Optionally, the deployment scenarios involved in IoT communication mainly include the following:

[0185] Deployment Scenario 1: Ambient IoT devices are indoors, and the base station is indoors;

[0186] Deployment Scenario 2: Ambient IoT devices are indoors, and base stations are outdoors;

[0187] Deployment Scenario 3: Ambient IoT devices are located indoors, and the reader is, for example, a UE (User Equipment).

[0188] Deployment Scenario 4: Ambient IoT devices are outdoors, and base stations are outdoors;

[0189] Deployment Scenario 5: Ambient IoT devices are outdoors, and the reader is, for example, a UE (User Equipment).

[0190] Optionally, an Ambient IoT device (A-IoT device for short) is a device that operates powered by ambient energy harvested from radio waves, light, motion, heat, or other available ambient energy sources. A-IoT devices have little or no electrical power supply. Depending on whether an A-IoT device has energy storage capabilities and the ability to independently generate signals, A-IoT devices may include Device 1, Device 2a, and Device 2b, but the possibility of adding new A-IoT device types in the future is not excluded.

[0191] Device 1: It has limited energy storage capacity and lacks the ability to independently generate or amplify signals. It transmits signals via backscattering. Its peak power consumption is approximately 1 microwatt (μW), and its initial sampling frequency offset (SFO) is as high as 10 x ppm (x can be 4 or 5, where ppm represents parts per million). It lacks both downlink and uplink signal amplification capabilities. Uplink transmission is achieved through backscattering on an externally provided carrier.

[0192] Device 2a: It has a large energy storage capacity but no ability to generate signals independently. It transmits signals via backscattering and can amplify reflected signals using stored energy. Its peak power consumption does not exceed a few hundred μW, and its SFO is as high as 10x ppm (x can be 3, 4, or 5). It has the capability to amplify downlink and / or uplink signals. The uplink transmission of this device is achieved through backscattering on an externally provided carrier.

[0193] Device 2b: It has a large energy storage capacity and the ability to generate signals independently, using radio frequency devices for signal transmission. Its peak power consumption does not exceed several hundred μW, and its SFO is as high as 10x ppm (x can be 3, 4, or 5). It has the ability to amplify downlink signals and / or uplink signals. The uplink transmission of this device is implemented by the radio frequency devices inside the device.

[0194] Optionally, in AIoT applications, the physical layer links and channels are specified (the reader can be a base station or an intermediate UE). R2D stands for Reader-to-Device. D2R stands for Device-to-Reader. CW2D stands for carrier-wave-to-device.

[0195] Optionally, D2R corresponds to the Physical device-to-reader channel (PDRCH). R2D corresponds to the Physical reader-to-device channel (PRDCH).

[0196] Optionally, operating based on backscatter means that while the A-IoT device is transmitting data, it requires an energy source (also called a CW node) to provide the carrier wave (CW) for reflection. The CW is generally of constant amplitude. The CW node can be a standalone node or a base station / intermediate node (e.g., UE) communicating with the A-IoT device. The A-IoT device reflects the received CW, loads the signaling / data to be transmitted onto the reflected wave, and transmits the reflected wave. The reflected wave and the CW are on the same frequency or have a certain frequency offset. Simultaneously, the CW can also power the A-IoT device. For example, the A-IoT device can receive the wireless signal CW, activate its internal receiving and processing module, and begin encoding and modulating the signaling / data to be uploaded by the A-IoT device.

[0197] Optionally, such as Figure 1C As shown, Figure 1C This is a schematic diagram of the basic inventory process of the A-IoT device in this embodiment of the disclosure. Taking the base station (gNB and A-IoT device (hereinafter referred to as device)) as an example, the inventory process mainly includes inventory trigger message R2D#1, random number message D2R#1, random number response message R2D#2 and identifier reporting message D2R#2.

[0198] Optionally, such as Figure 1D As shown, Figure 1D This is a schematic diagram of the R2D transmission frame structure in an embodiment of this disclosure. A single R2D transmission may include three parts (or two parts): a synchronization header indicating the start position of the R2D transmission and providing clock reference information; control information with an independent Cyclic Redundancy Check (CRC) bit (which may also be absent); and a PRDCH for carrying R2D data. The synchronization header can also be called the Timing Acquisition Signal (TAS) or the R2D Timing Acquisition Signal (R-TAS); the name is not limited in this embodiment.

[0199] Optionally, based on the above R2D transmission frame structure, in order to indicate the start position of R2D transmission and provide clock reference information, the synchronization header may include, for example: Figure 1E ( Figure 1E The diagram shows two parts in the R2D synchronization header structure of this embodiment: the Start Indicator Part (SIP) and the Clock Acquisition Part (CAP). The design of the SIP and CAP in the synchronization header can include the following:

[0200] 1) SIP is a fixed-duration signal with only one value.

[0201] 2) The end level of SIP is opposite to the start level of CAP.

[0202] 3) In the same direction, CAP contains at least two transition edges.

[0203] 4) The maximum length of CAP includes three candidate values: 1.5 Orthogonal Frequency Division Multiplexing (OFDM) symbols, 2 OFDM symbols, or 3 OFDM symbols.

[0204] Optionally, it is necessary to optimize the design of the synchronization header signal of R2D to reduce the indication overhead of the transmission start position and clock reference information of the first channel, and to support the improvement of the indication accuracy of the transmission start position and clock reference information of the first channel, thereby improving the data transmission rate and ensuring system performance.

[0205] Figure 2A This is an interactive schematic diagram illustrating a communication method according to an embodiment of the present disclosure. For example... Figure 2A As shown, this disclosure relates to a communication method that can be used in a communication system 100. The communication system 100 may include a first device and a second device. The first device may be the aforementioned A-IoT device, and the second device may be the aforementioned reader. The second device may be a base station or an intermediate UE, and there are no limitations on this. The method includes:

[0206] In step S2101, the second device sends a first signal, which includes at least one of the following: a first part and a second part, wherein the first part maps to a first pattern and the second part maps to a second pattern.

[0207] Optionally, in some embodiments, the first signal may be, for example, the synchronization header signal of R2D described above. The second device may be, for example, a reader. The first device may be the A-IoT device described above. The first channel may be PRDCH.

[0208] Optionally, in some embodiments, the reader can send an R2D synchronization header signal to the A-IoT device.

[0209] Optionally, in some embodiments, the first signal may include a first portion for indicating the start position of transmission of the first channel. The first portion may be, for example, a SIP or a start indication portion, which can be used to indicate the start position of transmission of the first channel.

[0210] Optionally, in some embodiments, the first signal may include a second portion for indicating clock reference information for the first channel. The second portion may be, for example, a CAP or clock request portion, which can be used to indicate clock reference information for the first channel.

[0211] Optionally, in some embodiments, the first signal may include a first portion and a second portion, wherein the first portion is used to indicate the transmission start position of the first channel, and the second portion is used to indicate the clock reference information of the first channel. The first portion may be, for example, a SIP or a start indication portion, and the second portion may be, for example, a CAP or a clock request portion. The SIP or start indication portion may be used to indicate the transmission start position of the first channel, and the CAP or clock request portion may be used to indicate the clock reference information of the first channel.

[0212] Optionally, in some embodiments, the reader can send an R2D synchronization header signal to the A-IoT device to indicate at least one of SIP and CAP to the A-IoT device.

[0213] Optionally, in some embodiments, the first part is mapped to a first pattern, and the second part is mapped to a second pattern. That is, the first part can use the mapped first pattern to indicate the start position of transmission of the first channel. The second part can use the mapped second pattern to indicate the clock reference information of the first channel.

[0214] Optionally, in some embodiments, the above-described pattern may specifically be, for example, a pattern of modulation symbols. The pattern may also be referred to as an "ON-OFF" pattern. For example, the first part may map to one "ON-OFF" pattern, and the second part may map to another "ON-OFF" pattern. The first part may indicate the start position of transmission of the first channel through the mapped "one "ON-OFF" pattern." The second part may indicate the clock reference information of the first channel through the mapped "other "ON-OFF" pattern."

[0215] Optionally, in some embodiments, the duration corresponding to the first part is M time units, and / or the duration corresponding to the second part is less than or equal to N time units, where M and N are positive numbers. This ensures the accuracy of the indication of the transmission start position and clock reference information of the first signal sent by the second device to the first channel, and allows for personalized conventions of the values ​​of M and N based on actual application requirements, thereby improving the flexibility of indication and ensuring system performance.

[0216] Optionally, in some embodiments, the time unit can be, for example, an OFDM symbol. Then M can be 0.5, and N can be less than or equal to 1.5. The duration can also be referred to as the length. For example, the length of the SIP can be 0.5 OFDM symbols, and the "ON-OFF" pattern of the SIP is ON+OFF (an optional example of the first pattern described above). The length of the CAP is variable, with a maximum length of 1.5 OFDM symbols, and the "ON-OFF" pattern of the CAP is ON+OFF+ON (an optional example of the second pattern described above).

[0217] Optionally, in some embodiments, the first part maps to a first pattern, which includes: a first modulation symbol, a second modulation symbol, a third modulation symbol, and a fourth modulation symbol that are sequentially adjacent; wherein the first and third modulation symbols correspond to first modulation information; and the second and fourth modulation symbols correspond to second modulation information, and the first and second modulation information are different. Therefore, it is possible to accurately indicate the transmission start position of the first channel without incurring excessive indication overhead, thus improving the indication effect.

[0218] Optionally, in some embodiments, the first pattern may include: a first modulation symbol, a second modulation symbol, a third modulation symbol, and a fourth modulation symbol that are sequentially adjacent. The first modulation symbol may contain first modulation information (modulation information can also be referred to as modulation state), such as ON. The third modulation symbol may contain first modulation information (modulation information can also be referred to as modulation state), such as ON. The second modulation symbol may contain second modulation information (modulation information can also be referred to as modulation state), such as OFF. The fourth modulation symbol may contain second modulation information (modulation information can also be referred to as modulation state), such as OFF. That is, in some optional embodiments, the first pattern mapped by the first part can be a fixed ON-OFF-ON-OFF.

[0219] Optionally, in some embodiments, the adjacency between different modulation symbols included in the first pattern described above can be understood as: the level end position of one modulation symbol is the same as the level start position of another modulation symbol adjacent to it (which refers to a modulation symbol). For example, the level end position of the first modulation symbol is the same as the level start position of the second modulation symbol; the level end position of the second modulation symbol is the same as the level start position of the third modulation symbol; the level end position of the third modulation symbol is the same as the level start position of the fourth modulation symbol, and there is no limitation thereto.

[0220] Optionally, in some embodiments, the first modulation symbol corresponds to a first sub-duration, the second modulation symbol corresponds to a second sub-duration, the third modulation symbol corresponds to a third sub-duration, and the fourth modulation symbol corresponds to a fourth sub-duration; wherein the first, second, and third sub-durations are the same; and the fourth sub-duration is the sum of the first, second, and third sub-durations. Therefore, it is possible to accurately indicate the transmission start position of the first channel without consuming excessive indication overhead, thus improving the indication effect.

[0221] Optionally, in some embodiments, the duration corresponding to the first modulation symbol in the first pattern may be referred to as the first sub-duration. The duration corresponding to the second modulation symbol in the first pattern may be referred to as the second sub-duration. The duration corresponding to the third modulation symbol in the first pattern may be referred to as the third sub-duration. The duration corresponding to the fourth modulation symbol in the first pattern may be referred to as the fourth sub-duration.

[0222] Optionally, in some embodiments, since the first pattern can occupy 0.5 OFDM symbols, if the first pattern includes sequentially adjacent first modulation symbols, second modulation symbols, third modulation symbols, and fourth modulation symbols, then the relationship of the sub-durations occupied by each modulation symbol can be: {1 / 12 OFDM symbol, 1 / 12 OFDM symbol, 1 / 12 OFDM symbol, 1 / 4 OFDM symbol}. That is to say, the duration corresponding to the ON-OFF-ON-OFF of SIP is {1 / 12 OFDM symbol, 1 / 12 OFDM symbol, 1 / 12 OFDM symbol, 1 / 4 OFDM symbol}.

[0223] Optionally, in some embodiments, the first part maps to a first pattern, which includes: sequentially adjacent first modulation symbols and second modulation symbols; wherein the first modulation symbol corresponds to first modulation information, the second modulation symbol corresponds to second modulation information, and the first modulation information and the second modulation information are different. This enables accurate indication of the transmission start position of the first channel without incurring excessive indication overhead, thus improving the indication effect. Furthermore, it enhances the flexibility of indicating the transmission start position of the first channel, allowing the indication method to be effectively applied to personalized communication scenarios.

[0224] Optionally, in some embodiments, the first pattern may include sequentially adjacent first modulation symbols and second modulation symbols. The first modulation symbol may include first modulation information (modulation information can also be referred to as modulation state), such as ON. The second modulation symbol may include second modulation information (modulation information can also be referred to as modulation state), such as OFF. That is, in some optional embodiments, the first pattern mapped by the first part can be a fixed ON-OFF.

[0225] Optionally, in some embodiments, the adjacency between different modulation symbols included in the second pattern described above can be understood as: the level end position of one modulation symbol and the level start position of another modulation symbol adjacent to it (which refers to a modulation symbol) are the same. For example, the level end position of the first modulation symbol and the level start position of the second modulation symbol are the same, but this is not a limitation.

[0226] Optionally, in some embodiments, the first modulation symbol corresponds to a first sub-duration and the second modulation symbol corresponds to a second sub-duration; wherein the first sub-duration and the second sub-duration are different, and the first sub-duration is shorter than the second sub-duration. This allows for accurate indication of the transmission start position of the first channel without incurring excessive indication overhead, thus improving the indication effect. Furthermore, it enhances the flexibility of indicating the transmission start position of the first channel, enabling the indication method to be effectively applied to personalized communication scenarios.

[0227] Optionally, in some embodiments, the duration corresponding to the first modulation symbol in the first pattern may be referred to as the first sub-duration. The duration corresponding to the second modulation symbol in the first pattern may be referred to as the second sub-duration.

[0228] Optionally, in some embodiments, since the first pattern can occupy 0.5 OFDM symbols, if the first pattern includes sequentially adjacent first modulation symbols and second modulation symbols, the relationship between the sub-durations occupied by each modulation symbol can be: {1 / 8 OFDM symbol, 3 / 8 OFDM symbol}. That is, the duration corresponding to the ON-OFF state of SIP is {1 / 8 OFDM symbol, 3 / 8 OFDM symbol}. Here, 1 / 8 OFDM symbol is an optional example of the first sub-duration, and 3 / 8 OFDM symbol is an optional example of the second sub-duration. The second sub-duration is three times the first sub-duration.

[0229] Optionally, in some embodiments, since the first pattern can occupy 0.5 OFDM symbols, if the first pattern includes sequentially adjacent first modulation symbols and second modulation symbols, the relationship between the sub-durations occupied by each modulation symbol can be: {1 / 4 OFDM symbol, 1 / 4 OFDM symbol}. That is, the duration corresponding to the ON-OFF state of SIP is {1 / 4 OFDM symbol, 1 / 4 OFDM symbol}. Here, 1 / 4 OFDM symbol is an optional example of the first sub-duration, and 1 / 4 OFDM symbol is an optional example of the second sub-duration. The second sub-duration and the first sub-duration can be the same.

[0230] Optionally, in some embodiments, the second part maps to a second pattern, which includes at least one fifth modulation symbol and at least one sixth modulation symbol; wherein a fifth modulation symbol and a sixth modulation symbol are adjacent, different fifth modulation symbols are not adjacent, and different sixth modulation symbols are not adjacent; the fifth modulation symbol corresponds to first modulation information, and the sixth modulation symbol corresponds to second modulation information, and the first modulation information and the second modulation information are different. This provides richer transition edges, facilitating the first device to obtain more accurate clock reference information for the first channel, thereby making the indicated clock reference information more effective and supporting more accurate clock calibration.

[0231] Optionally, in some embodiments, the fifth modulation symbol may be, for example, ON, and the sixth modulation symbol may be, for example, OFF. The number of fifth modulation symbols and the number of sixth modulation symbols may be one or more. A fifth modulation symbol and a sixth modulation symbol are adjacent, while different fifth modulation symbols and different sixth modulation symbols are not adjacent. That is, the fifth and sixth modulation symbols may be arranged in a continuous alternation. The second pattern may, for example, be a continuous alternation of ON and OFF.

[0232] Optionally, in some embodiments, the duration of the second part is equal to N time units; wherein the number of the fifth modulation symbols is agreed upon by the protocol; and / or the number of the sixth modulation symbols is agreed upon by the protocol; and / or the total number of the fifth and sixth modulation symbols is agreed upon by the protocol. That is to say, when the duration of the second part is fixed at N time units, the number of ON, or the number of OFF, or the total number of ON and OFF in the second pattern mapped by the second part can be agreed upon by the protocol. This allows the first device and the second device to have a consistent understanding of the number of various modulation symbols contained in the second pattern, thereby improving the flexibility of the clock reference information indication of the first channel while maximizing the accuracy of the clock reference information indication of the first channel.

[0233] Optionally, in some embodiments, the duration of the second part is equal to N time units; wherein, the total number of the fifth modulation symbol and the sixth modulation symbol is the product of the first value and N; the number of the fifth modulation symbol is equal to the value obtained by rounding up the ratio of the product value to 2; the number of the sixth modulation symbol is equal to the value obtained by rounding down the ratio of the product value to 2. That is to say, when the duration of the second part is fixed at N time units, the number of the fifth modulation symbol and the number of the sixth modulation symbol contained in the second pattern mapped by the second part can be calculated based on the above-mentioned time units. Thus, the first device and the second device can have a consistent understanding of the number of various modulation symbols contained in the second pattern, thereby improving the flexibility of the clock reference information indication of the first channel while maximizing the accuracy of the clock reference information indication of the first channel.

[0234] Optionally, in some embodiments, if the time unit is an OFDM symbol, and the duration corresponding to the second part is equal to 1.5 time units, indicating that N is 1.5 or 3 / 2, then the sum of ON and OFF included in CAP (an optional example of the total number of the fifth and sixth modulation symbols mentioned above) is 1.5*m or 3 / 2*m, wherein the number of ONs included in CAP (an optional example of the number of the fifth modulation symbols mentioned above) is The number of OFFs included in CAP (an optional example of the number of the sixth modulation symbol mentioned above) is: Based on this design, the length of the ON or OFF symbol is 1 / m OFDM symbol, where m is an optional example of the first value mentioned above.

[0235] Optionally, in some embodiments, the duration of the second part is less than or equal to N time units, wherein the number of fifth modulation symbols is two and the number of sixth modulation symbols is one. This significantly reduces the indication overhead of the clock reference information of the first channel, improves the data transmission rate, and thus ensures system performance.

[0236] In other words, the duration of the second part can also be variable. If the duration of the second part is variable, then the number of fifth modulation symbols in the second pattern mapped by the second part can be two, and the number of sixth modulation symbols can be one. That is, the second pattern mapped by the second part can be a fixed ON-OFF-ON.

[0237] Optionally, in some embodiments, the fifth modulation symbol corresponds to the fifth sub-duration and the sixth modulation symbol corresponds to the sixth sub-duration; wherein the fifth and sixth sub-durations are the same, and the fifth and sixth sub-durations are negatively correlated with the first value. The first value can be, for example, m as described above. The larger m is, the smaller the fifth and sixth sub-durations are. Thus, a suitable value of m can be selected based on the actual communication scenario requirements, thereby making it suitable for personalized communication scenarios. In various possible communication scenarios, it can ensure that the indication overhead of the clock reference information of the first channel is reduced.

[0238] For example, the fifth modulation symbol corresponds to the fifth sub-time length, and the sixth modulation symbol corresponds to the sixth sub-time length, which can be 1 / m OFDM symbols respectively.

[0239] Optionally, in some embodiments, the aforementioned time unit may include an Orthogonal Frequency Division Multiplexing (OFDM) symbol. This enables the use of OFDM symbols as a reference time unit to accurately indicate at least one of the transmission start position and clock reference information of the first channel. While ensuring accuracy, this also significantly reduces indication overhead, thereby ensuring system performance.

[0240] Optionally, in some embodiments, the first value is at least one value in a first set of values; or, the first value is at least one value in a second set of values, where the second set of values ​​is a subset of the first set of values. Thus, the first set of values ​​or the second set of values ​​can be configured according to the needs of the actual communication scenario. When the first value in either the first set of values ​​or the second set of values ​​is used to support the transmission of the first signal, the flexibility of the transmission start position and clock reference information indication of the first channel can be greatly improved, effectively making it suitable for personalized communication scenarios.

[0241] For example, the first value can be m, then the value of m belongs to the set {2, 4, 6, 8, 12, 16, 24, 32} or a subset thereof. For instance, the value of m belongs to the sets {2, 8, 32}, {2, 6, 24}, etc. Here, the first set of values ​​is, for example, the set {2, 4, 6, 8, 12, 16, 24, 32}. The second set of values ​​is, for example, the set {2, 8, 32}, {2, 6, 24}, etc.

[0242] In step S2102, the first device determines the transmission start position of the first channel according to the first pattern, and / or determines the clock reference information of the first channel according to the second pattern.

[0243] Optionally, in some embodiments, the first device may receive a first signal and determine the transmission start position of the first channel based on a first pattern mapped by a first portion of the first signal.

[0244] Optionally, in some embodiments, the first device may receive a first signal and determine clock reference information for the first channel based on a second pattern mapped by a second portion of the first signal.

[0245] Optionally, in some embodiments, the first device may receive a first signal and determine the transmission start position of the first channel according to a first pattern mapped by a first portion of the first signal, and determine the clock reference information of the first channel according to a second pattern mapped by a second portion of the first signal.

[0246] Optionally, in some embodiments, the A-IoT device may receive a first signal and determine the transmission start position of the first channel according to the first pattern mapped by SIP in the first signal, and determine the clock reference information of the first channel according to the second pattern mapped by CAP in the first signal.

[0247] Optionally, in some embodiments, after determining the transmission start position of the first channel and / or determining the clock reference information of the first channel according to the second pattern, the first device may send the first channel to the second device based on the transmission start position and the clock reference information.

[0248] The communication method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2102. For example, steps S2101 and S2102 may be implemented as independent embodiments, steps S2101+S2102 may be implemented as independent embodiments, etc., but are not limited thereto.

[0249] In the embodiments disclosed herein, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations in other embodiments.

[0250] In the embodiments disclosed herein, each step and its optional implementation can also be carried out independently.

[0251] In this embodiment, the second device sends a first signal, which includes at least one of the following: a first part and a second part. The first part maps to a first pattern, and the second part maps to a second pattern. The first device determines the transmission start position of the first channel based on the first pattern, and / or determines the clock reference information of the first channel based on the second pattern. This reduces the overhead of indicating the transmission start position and clock reference information of the first channel, and improves the accuracy of indicating the transmission start position and clock reference information of the first channel, thereby increasing the data transmission rate and ensuring system performance.

[0252] It should be noted that in the following embodiments, the descriptions of the same or corresponding terms and method steps as in the above embodiments can be found in the above embodiments, and will not be repeated here.

[0253] Figure 2B This is an interactive schematic diagram illustrating a communication method according to another embodiment of this disclosure. For example... Figure 2B As shown, this disclosure relates to a communication method that can be used in a communication system 100. The communication system 100 may include a first device and a second device. The first device may be the aforementioned A-IoT device, and the second device may be the aforementioned reader. The second device may be a base station or an intermediate UE, and there are no limitations on this. The method includes:

[0254] In step S2201, the second device sends a first signal, which includes at least one of the following: a first part and a second part, wherein the first part maps to a first sequence and the second part maps to a second sequence.

[0255] Optionally, in some embodiments, the first part maps to a first sequence, and the second part maps to a second sequence. That is, the first part can use the mapped first sequence to indicate the start position of transmission of the first channel. The second part can use the mapped second sequence to indicate the clock reference information of the first channel.

[0256] Optionally, in some embodiments, the above sequence may specifically be, for example, a sequence of bits. For instance, the first part may map to one bit sequence, and the second part may map to another bit sequence. The first part may indicate the start position of transmission of the first channel through the mapped "one bit sequence." The second part may indicate the clock reference information of the first channel through the mapped "other bit sequence."

[0257] Optionally, in some embodiments, the first part maps to a first sequence, which includes: a first part sequence, a second part sequence, a third part sequence, and a fourth part sequence that are sequentially adjacent. The first part sequence includes X first bits, the second part sequence includes X second bits, the third part sequence includes X first bits, and the fourth part sequence includes Y second bits, where X and Y are positive integers, and the first and second bits are different. This allows for accurate indication of the start position of the first channel transmission without incurring excessive indication overhead, thus improving the indication effect.

[0258] Optionally, in some embodiments, each of the above-described "partial sequences" can be a sequence containing one or more consecutive bits, where all different bits in the consecutive bits are the same (all are 1, or all are 0). The first bit can be, for example, 1, and the second bit can be, for example, 0. The first partial sequence can include X 1s; the second partial sequence includes X 0s; the third partial sequence includes X 1s; and the fourth partial sequence includes Y 0s.

[0259] Optionally, in some embodiments, the duration corresponding to the first bit is a first reference duration, and the duration corresponding to the second bit is a second reference duration, wherein the first reference duration and the second reference duration are the same. Therefore, at least one of the first sequence and the second sequence in the first signal can be sent to the first device based on the same reference duration, thereby greatly reducing the complexity of indicating the transmission start position and clock reference information of the first channel through the sequence in the first signal, and reducing indication overhead while ensuring indication accuracy.

[0260] Optionally, in some embodiments, the first reference duration and the second reference duration can be 1 / 12 of an OFDM symbol, or 1 / 8 of an OFDM symbol, or 1 / 4 of an OFDM symbol. The first reference duration and the second reference duration can also be different. For example, the first reference duration can be 1 / 12 of an OFDM symbol or 1 / 8 of an OFDM symbol, while the second reference duration can be 1 / 2 of an OFDM symbol, 1 / 4 of an OFDM symbol, etc. There is no limitation on this.

[0261] Optionally, in some embodiments, Y is equal to 3 times X. This allows for accurate indication of the start position of the first channel transmission without incurring excessive indication overhead, thus improving the indication effect.

[0262] In other words, the number Y of the second bits in the fourth part of the sequence can be the sum of the number X of the first bits in the first part of the sequence, the number X of the second bits in the second part of the sequence, and the number X of the first bits in the third part of the sequence, which is 3 times X. The number X of the first bits in the first part of the sequence, the number X of the second bits in the second part of the sequence, and the number X of the first bits in the third part of the sequence can be the same.

[0263] Optionally, in some embodiments, the first part maps to a first sequence, which includes: a first part sequence and a second part sequence that are sequentially adjacent, wherein the first part sequence includes X first bits, and the second part sequence includes Y second bits, where X and Y are positive integers, and the first bits and second bits are different. This allows for accurate indication of the transmission start position of the first channel without incurring excessive indication overhead, thus improving the indication effect. Furthermore, it enhances the flexibility of indicating the transmission start position of the first channel, enabling the indication method to be effectively applied to personalized communication scenarios.

[0264] In the case where the first part maps to the first sequence and the first sequence includes the first part sequence, the second part sequence, the third part sequence, and the fourth part sequence that are sequentially adjacent, and when the first part maps to the first sequence and the first sequence includes the first part sequence and the second part sequence that are sequentially adjacent, the number of first bits X contained in the first part sequence can be different or the same, and there is no restriction on this.

[0265] Optionally, in some embodiments, X is less than or equal to Y. That is, when the first part maps to the first sequence, and the first sequence includes sequentially adjacent first part sequences and second part sequences, the number of first bits X contained in the first part sequence can be less than or equal to the number of second bits Y contained in the second part sequence. This greatly improves the accuracy of the transmission start position indication of the first channel, ensuring that the first device can correctly resolve the transmission start position of the first channel.

[0266] Optionally, in some embodiments, the second part maps to a second sequence, which includes at least one fifth part sequence and at least one sixth part sequence. The fifth part sequence includes P first bits, and the sixth part sequence includes P second bits, where P is a positive integer. A fifth part sequence and a sixth part sequence are adjacent, while different fifth part sequences and different sixth part sequences are not adjacent. This provides richer transition edges, facilitating the first device to obtain more accurate clock reference information for the first channel, thereby making the indicated clock reference information more effective and supporting more accurate clock calibration.

[0267] Optionally, in some embodiments, the first bit can be, for example, 1, and the second bit can be, for example, 0. The number of first bits in the fifth part sequence can be one or more, and the number of second bits in the sixth part sequence can be one or more. A fifth part sequence and a sixth part sequence are adjacent, different fifth part sequences are not adjacent, and different sixth part sequences are not adjacent. That is to say, the fifth part sequence and the sixth part sequence can be arranged in a continuous alternation.

[0268] Optionally, in some embodiments, the duration corresponding to the second part is equal to N time units; wherein, the number of fifth part sequences is agreed upon by the protocol; and / or the number of sixth part sequences is agreed upon by the protocol; and / or the total number of fifth part sequences and sixth part sequences is agreed upon by the protocol. That is to say, when the duration corresponding to the second part is fixed to N time units, the number of fifth part sequences, or the number of sixth part sequences, or the total number of fifth part sequences and sixth part sequences in the second sequence mapped by the second part can be agreed upon by the protocol. This allows the first device and the second device to have a consistent understanding of the number of various different part sequences contained in the second sequence, thereby improving the flexibility of the clock reference information indication of the first channel while maximizing the accuracy of the clock reference information indication of the first channel.

[0269] Optionally, in some embodiments, the duration corresponding to the second part is equal to N time units; wherein, the total number of the fifth part sequence and the sixth part sequence is positively correlated with the first value, and the number of the fifth part sequence is greater than or equal to the number of the sixth part sequence. Therefore, the first value can be customized based on the needs of the actual communication scenario, and based on different first values, the number of various possible transition edges can be flexibly obtained. This enriches the transition edges and greatly improves the flexibility of the clock reference information indication of the first channel, making it suitable for personalized communication scenarios.

[0270] In other words, the larger the value of the first value m, the greater the total number of the fifth and sixth part sequences. Correspondingly, the greater the number of the fifth part sequences and the greater the number of the sixth part sequences. The number of the fifth part sequences can be greater than or equal to the number of the sixth part sequences. For example, the number of the fifth part sequences and the number of the sixth part sequences are the same, or the number of the fifth part sequences is one more than the number of the sixth part sequences.

[0271] Optionally, in some embodiments, the duration corresponding to the second part is less than or equal to N time units, wherein the number of sequences in the fifth part is two, and the number of sequences in the sixth part is one. This significantly reduces the indication overhead of the clock reference information of the first channel, improves the data transmission rate, and thus ensures system performance.

[0272] In other words, the duration of the second part can be variable. If the duration of the second part is variable, then the number of fifth part sequences in the second sequence mapped by the second part can be two, and the number of sixth part sequences can be one.

[0273] Optionally, in some embodiments, the first value is at least one value in a first set of values; or, the first value is at least one value in a second set of values, where the second set of values ​​is a subset of the first set of values. Thus, the first set of values ​​or the second set of values ​​can be configured according to the needs of the actual communication scenario. When the first value in either the first set of values ​​or the second set of values ​​is used to support the transmission of the first signal, the flexibility of the transmission start position and clock reference information indication of the first channel can be greatly improved, effectively making it suitable for personalized communication scenarios.

[0274] For example, the first value can be m, then the value of m belongs to the set {2, 4, 6, 8, 12, 16, 24, 32} or a subset thereof. For instance, the value of m belongs to the sets {2, 8, 32}, {2, 6, 24}, etc. Here, the first set of values ​​is, for example, the set {2, 4, 6, 8, 12, 16, 24, 32}. The second set of values ​​is, for example, the set {2, 8, 32}, {2, 6, 24}, etc.

[0275] In step S2202, the first device determines the transmission start position of the first channel according to the first sequence, and / or determines the clock reference information of the first channel according to the second sequence.

[0276] Optionally, in some embodiments, the first device may receive a first signal and determine the transmission start position of the first channel based on a first sequence mapped by a first portion of the first signal.

[0277] Optionally, in some embodiments, the first device may receive a first signal and determine clock reference information for the first channel based on a second sequence mapped by a second portion of the first signal.

[0278] Optionally, in some embodiments, the first device may receive a first signal and determine the transmission start position of the first channel according to a first sequence mapped by a first portion of the first signal, and determine the clock reference information of the first channel according to a second sequence mapped by a second portion of the first signal.

[0279] Optionally, in some embodiments, the A-IoT device may receive a first signal and determine the transmission start position of the first channel according to the first sequence mapped by SIP in the first signal, and determine the clock reference information of the first channel according to the second sequence mapped by CAP in the first signal.

[0280] Optionally, in some embodiments, after determining the transmission start position of the first channel and / or determining the clock reference information of the first channel according to the second sequence, the first device may send the first channel to the second device based on the transmission start position and the clock reference information.

[0281] The communication method involved in the embodiments of this disclosure may include at least one of steps S2201 to S2202. For example, steps S2201 and S2202 may be implemented as independent embodiments, steps S2201+S2202 may be implemented as independent embodiments, etc., but are not limited thereto.

[0282] In the embodiments disclosed herein, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations in other embodiments.

[0283] In the embodiments disclosed herein, each step and its optional implementation can also be carried out independently.

[0284] In this embodiment, the second device sends a first signal, which includes at least one of the following: a first part and a second part. The first part maps to a first sequence, and the second part maps to a second sequence. The first device determines the transmission start position of the first channel based on the first sequence, and / or determines the clock reference information of the first channel based on the second sequence. This reduces the overhead of indicating the transmission start position and clock reference information of the first channel, and improves the accuracy of indicating the transmission start position and clock reference information of the first channel, thereby increasing the data transmission rate and ensuring system performance.

[0285] Figure 3 This is an interactive schematic diagram illustrating a communication method according to another embodiment of this disclosure. For example... Figure 3 As shown, this disclosure relates to a communication method executed by a first device, the method comprising:

[0286] Step S3101: Receive a first signal, the first signal including at least one of the following: a first part and a second part, wherein the first part is used to indicate the transmission start position of the first channel, and the second part is used to indicate the clock reference information of the first channel.

[0287] Step S3102: Determine at least one of the transmission start position of the first channel and clock reference information based on the first signal.

[0288] The communication method involved in the embodiments of this disclosure may include at least one of steps S3101 to S3102. For example, steps S3101, S3102, etc., may be implemented as independent embodiments, and steps S3101+S3102 may be implemented as independent embodiments, but are not limited thereto.

[0289] In the embodiments disclosed herein, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations in other embodiments.

[0290] In the embodiments disclosed herein, each step and its optional implementation can also be carried out independently.

[0291] Optionally, in some embodiments of this disclosure, the duration corresponding to the first part is M time units, and / or the duration corresponding to the second part is less than or equal to N time units, where M and N are positive numbers.

[0292] Optionally, in some embodiments of this disclosure, the first portion maps to a first pattern, the first pattern comprising: a first modulation symbol, a second modulation symbol, a third modulation symbol, and a fourth modulation symbol arranged sequentially adjacent to each other; wherein,

[0293] The first modulation symbol and the third modulation symbol correspond to the first modulation information;

[0294] The second and fourth modulation symbols correspond to the second modulation information, while the first and second modulation information are different.

[0295] Optionally, in some embodiments of this disclosure, the first modulation symbol corresponds to a first sub-duration, the second modulation symbol corresponds to a second sub-duration, the third modulation symbol corresponds to a third sub-duration, and the fourth modulation symbol corresponds to a fourth sub-duration; wherein,

[0296] The durations of the first, second, and third pieces are the same;

[0297] The duration of the fourth sub-sub is the sum of the durations of the first, second, and third sub-sub-sub.

[0298] Optionally, in some embodiments of this disclosure, the first portion maps to a first pattern, the first pattern comprising: sequentially adjacent first modulation symbols and second modulation symbols; wherein,

[0299] The first modulation symbol corresponds to the first modulation information, and the second modulation symbol corresponds to the second modulation information. The first modulation information and the second modulation information are different.

[0300] Optionally, in some embodiments of this disclosure, the first modulation symbol corresponds to a first sub-duration and the second modulation symbol corresponds to a second sub-duration; wherein the first sub-duration and the second sub-duration are different, and the first sub-duration is less than the second sub-duration.

[0301] Optionally, in some embodiments of this disclosure, the second portion maps to a second pattern, the second pattern including: at least one fifth modulation symbol and at least one sixth modulation symbol; wherein,

[0302] A fifth modulation symbol and a sixth modulation symbol are adjacent to each other; different fifth modulation symbols are not adjacent to each other; different sixth modulation symbols are not adjacent to each other.

[0303] The fifth modulation symbol corresponds to the first modulation information, and the sixth modulation symbol corresponds to the second modulation information. The first modulation information and the second modulation information are different.

[0304] Optionally, in some embodiments of this disclosure, the duration of the second part is equal to N time units; wherein,

[0305] The number of fifth modulation symbols is as agreed upon in the protocol; and / or

[0306] The number of sixth modulation symbols is as agreed upon in the protocol; and / or

[0307] The total number of the fifth and sixth modulation symbols is as agreed upon in the protocol.

[0308] Optionally, in some embodiments of this disclosure, the duration of the second part is equal to N time units; wherein,

[0309] The total number of the fifth and sixth modulation symbols is the product of the first value and N;

[0310] The number of the fifth modulation symbol is equal to the value obtained by rounding up the ratio of the product to 2;

[0311] The number of the sixth modulation symbol is equal to the value obtained by rounding down the ratio of the product to 2.

[0312] Optionally, in some embodiments of this disclosure, the duration corresponding to the second part is less than or equal to N time units, wherein the number of the fifth modulation symbol is two and the number of the sixth modulation symbol is one.

[0313] Optionally, in some embodiments of this disclosure, the fifth modulation symbol corresponds to the fifth sub-duration and the sixth modulation symbol corresponds to the sixth sub-duration; wherein,

[0314] The duration of the fifth sub-sub is the same as that of the sixth sub-sub, and the durations of the fifth and sixth sub-sub are negatively correlated with the first value.

[0315] Optionally, in some embodiments of this disclosure, the time unit includes: Orthogonal Frequency Division Multiplexing (OFDM) symbols.

[0316] Optionally, in some embodiments of this disclosure, the first part maps to a first sequence, the first sequence comprising: a first part sequence, a second part sequence, a third part sequence, and a fourth part sequence that are sequentially adjacent, wherein the first part sequence comprises X first bits, the second part sequence comprises X second bits, the third part sequence comprises X first bits, and the fourth part sequence comprises Y second bits, where X and Y are positive integers, and the first bits and second bits are different.

[0317] Optionally, in some embodiments of this disclosure, the duration corresponding to the first bit is a first reference duration, the duration corresponding to the second bit is a second reference duration, and the first reference duration and the second reference duration are the same.

[0318] Optionally, in some embodiments of this disclosure, wherein,

[0319] Y equals 3 times X.

[0320] Optionally, in some embodiments of this disclosure, the first part maps to the first sequence, the first sequence comprising: a first part sequence and a second part sequence that are sequentially adjacent, wherein the first part sequence comprises X first bits and the second part sequence comprises Y second bits, X and Y are positive integers, and the first bits and the second bits are different.

[0321] Optionally, in some embodiments of this disclosure, wherein,

[0322] X is less than or equal to Y.

[0323] Optionally, in some embodiments of this disclosure, the second part maps to a second sequence, the second sequence comprising: at least one fifth part sequence and at least one sixth part sequence, wherein the fifth part sequence comprises P first bits, and the sixth part sequence comprises P second bits, where P is a positive integer; wherein...

[0324] A fifth part sequence and a sixth part sequence are adjacent, different fifth part sequences are not adjacent, and different sixth part sequences are not adjacent.

[0325] Optionally, in some embodiments of this disclosure, the duration of the second part is equal to N time units; wherein,

[0326] The number of sequences in Part 5 is as agreed upon in the protocol; and / or

[0327] The number of sequences in Part 6 is as agreed upon in the protocol; and / or

[0328] The total number of sequences in Part 5 and Part 6 is as agreed upon in the protocol.

[0329] Optionally, in some embodiments of this disclosure, the duration corresponding to the second part is equal to N time units; wherein, the total number of the fifth part sequence and the sixth part sequence is positively correlated with the first value, and the number of the fifth part sequence is greater than or equal to the number of the sixth part sequence.

[0330] Optionally, in some embodiments of this disclosure, the duration corresponding to the second part is less than or equal to N time units, wherein the number of the fifth part sequence is two and the number of the sixth part sequence is one.

[0331] Optionally, in some embodiments of this disclosure, the first value is at least one value in a first set of values; or, the first value is at least one value in a second set of values, wherein the second set of values ​​is a subset of the first set of values.

[0332] Figure 4 This is an interactive schematic diagram illustrating a communication method according to yet another embodiment of the present disclosure. For example... Figure 4 As shown, this disclosure relates to a communication method performed by a second device. The method includes:

[0333] Step S4101: Send a first signal, the first signal including at least one of the following: a first part and a second part, wherein the first part is used to indicate the transmission start position of the first channel, the second part is used to indicate the clock reference information of the first channel, and the first signal is used to determine at least one of the transmission start position and clock reference information of the first channel.

[0334] The communication method involved in the embodiments of this disclosure may include step S4101. For example, step S4101 may be implemented as an independent embodiment, but is not limited thereto.

[0335] In the embodiments disclosed herein, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations in other embodiments.

[0336] In the embodiments disclosed herein, each step and its optional implementation can also be carried out independently.

[0337] Optionally, in some embodiments of this disclosure, the duration corresponding to the first part is M time units, and / or the duration corresponding to the second part is less than or equal to N time units, where M and N are positive numbers.

[0338] Optionally, in some embodiments of this disclosure, the first portion maps to a first pattern, the first pattern comprising: a first modulation symbol, a second modulation symbol, a third modulation symbol, and a fourth modulation symbol arranged sequentially adjacent to each other; wherein,

[0339] The first modulation symbol and the third modulation symbol correspond to the first modulation information;

[0340] The second and fourth modulation symbols correspond to the second modulation information, while the first and second modulation information are different.

[0341] Optionally, in some embodiments of this disclosure, the first modulation symbol corresponds to a first sub-duration, the second modulation symbol corresponds to a second sub-duration, the third modulation symbol corresponds to a third sub-duration, and the fourth modulation symbol corresponds to a fourth sub-duration; wherein,

[0342] The durations of the first, second, and third pieces are the same;

[0343] The duration of the fourth sub-sub is the sum of the durations of the first, second, and third sub-sub-sub.

[0344] Optionally, in some embodiments of this disclosure, the first portion maps to a first pattern, the first pattern comprising: sequentially adjacent first modulation symbols and second modulation symbols; wherein,

[0345] The first modulation symbol corresponds to the first modulation information, and the second modulation symbol corresponds to the second modulation information. The first modulation information and the second modulation information are different.

[0346] Optionally, in some embodiments of this disclosure, the first modulation symbol corresponds to a first sub-duration and the second modulation symbol corresponds to a second sub-duration; wherein the first sub-duration and the second sub-duration are different, and the first sub-duration is less than the second sub-duration.

[0347] Optionally, in some embodiments of this disclosure, the second portion maps to a second pattern, the second pattern including: at least one fifth modulation symbol and at least one sixth modulation symbol; wherein,

[0348] A fifth modulation symbol and a sixth modulation symbol are adjacent to each other; different fifth modulation symbols are not adjacent to each other; different sixth modulation symbols are not adjacent to each other.

[0349] The fifth modulation symbol corresponds to the first modulation information, and the sixth modulation symbol corresponds to the second modulation information. The first modulation information and the second modulation information are different.

[0350] Optionally, in some embodiments of this disclosure, the duration of the second part is equal to N time units; wherein,

[0351] The number of fifth modulation symbols is as agreed upon in the protocol; and / or

[0352] The number of sixth modulation symbols is as agreed upon in the protocol; and / or

[0353] The total number of the fifth and sixth modulation symbols is as agreed upon in the protocol.

[0354] Optionally, in some embodiments of this disclosure, the duration of the second part is equal to N time units; wherein,

[0355] The total number of the fifth and sixth modulation symbols is the product of the first value and N;

[0356] The number of the fifth modulation symbol is equal to the value obtained by rounding up the ratio of the product to 2;

[0357] The number of the sixth modulation symbol is equal to the value obtained by rounding down the ratio of the product to 2.

[0358] Optionally, in some embodiments of this disclosure, the duration corresponding to the second part is less than or equal to N time units, wherein the number of the fifth modulation symbol is two and the number of the sixth modulation symbol is one.

[0359] Optionally, in some embodiments of this disclosure, the fifth modulation symbol corresponds to the fifth sub-duration and the sixth modulation symbol corresponds to the sixth sub-duration; wherein,

[0360] The duration of the fifth sub-sub is the same as that of the sixth sub-sub, and the durations of the fifth and sixth sub-sub are negatively correlated with the first value.

[0361] Optionally, in some embodiments of this disclosure, the time unit includes: Orthogonal Frequency Division Multiplexing (OFDM) symbols.

[0362] Optionally, in some embodiments of this disclosure, the first part maps to a first sequence, the first sequence comprising: a first part sequence, a second part sequence, a third part sequence, and a fourth part sequence that are sequentially adjacent, wherein the first part sequence comprises X first bits, the second part sequence comprises X second bits, the third part sequence comprises X first bits, and the fourth part sequence comprises Y second bits, where X and Y are positive integers, and the first bits and second bits are different.

[0363] Optionally, in some embodiments of this disclosure, the duration corresponding to the first bit is a first reference duration, the duration corresponding to the second bit is a second reference duration, and the first reference duration and the second reference duration are the same.

[0364] Optionally, in some embodiments of this disclosure, wherein,

[0365] Y equals 3 times X.

[0366] Optionally, in some embodiments of this disclosure, the first part maps to the first sequence, the first sequence comprising: a first part sequence and a second part sequence that are sequentially adjacent, wherein the first part sequence comprises X first bits and the second part sequence comprises Y second bits, X and Y are positive integers, and the first bits and the second bits are different.

[0367] Optionally, in some embodiments of this disclosure, wherein,

[0368] X is less than or equal to Y.

[0369] Optionally, in some embodiments of this disclosure, the second part maps to a second sequence, the second sequence comprising: at least one fifth part sequence and at least one sixth part sequence, wherein the fifth part sequence comprises P first bits, and the sixth part sequence comprises P second bits, where P is a positive integer; wherein...

[0370] A fifth part sequence and a sixth part sequence are adjacent, different fifth part sequences are not adjacent, and different sixth part sequences are not adjacent.

[0371] Optionally, in some embodiments of this disclosure, the duration of the second part is equal to N time units; wherein,

[0372] The number of sequences in Part 5 is as agreed upon in the protocol; and / or

[0373] The number of sequences in Part 6 is as agreed upon in the protocol; and / or

[0374] The total number of sequences in Part 5 and Part 6 is as agreed upon in the protocol.

[0375] Optionally, in some embodiments of this disclosure, the duration corresponding to the second part is equal to N time units; wherein, the total number of the fifth part sequence and the sixth part sequence is positively correlated with the first value, and the number of the fifth part sequence is greater than or equal to the number of the sixth part sequence.

[0376] Optionally, in some embodiments of this disclosure, the duration corresponding to the second part is less than or equal to N time units, wherein the number of the fifth part sequence is two and the number of the sixth part sequence is one.

[0377] Optionally, in some embodiments of this disclosure, the first value is at least one value in a first set of values; or, the first value is at least one value in a second set of values, wherein the second set of values ​​is a subset of the first set of values.

[0378] The following is an exemplary description of the above method.

[0379] Optionally, the following embodiments are available:

[0380] This disclosure provides a design for a synchronization header signal (an optional example of the first signal described above) that has low transmission overhead and efficiently carries clock reference information. The main points involved are as follows: the length of the SIP, the "ON-OFF" pattern of the SIP (an optional example of the first pattern described above), the length of the CAP, and the "ON-OFF" pattern of the CAP (an optional example of the second pattern described above).

[0381] Option 1: The length of the SIP is 0.5 OFDM symbols (an optional example of the time unit mentioned above), the "ON-OFF" pattern of the SIP is ON+OFF, the CAP is of variable length, and the maximum length of the CAP is 1.5 OFDM symbols, and the "ON-OFF" pattern of the CAP is ON+OFF+ON.

[0382] Option 2: The length of the SIP is 0.5 OFDM symbols (an optional example of the time unit mentioned above), the "ON-OFF" pattern of the SIP is ON+OFF, the CAP is of fixed length and occupies 1.5 OFDM symbols, and the "ON-OFF" pattern of the CAP is multiple consecutive ON+OFF.

[0383] Optionally, in some embodiments, corresponding to Scheme 1, a fixed-length synchronization header design is provided. For example, an AIoT device can receive a first signal and determine the transmission start position and clock reference information of a first channel based on the first signal. The first signal includes a first part and a second part. The first part of the first signal is a start indication part (SIP) occupying M time units and mapping a first sequence, used to indicate the transmission start position of the first channel. The second part of the first signal is a clock acquisition part (CAP) occupying N time units and mapping a second sequence, used to indicate the clock reference information of the first channel. Here, M and N are both positive numbers.

[0384] Optionally, in some embodiments, the design of the start indication section SIP and the clock acquisition section CAP, including the length and "ON-OFF" pattern, will be described in two specific implementation methods below.

[0385] Optionally, in some embodiments, in Method 1, the SIP occupies 0.5 or 1 / 2 OFDM symbols, and the "ON-OFF" pattern is a fixed ON-OFF-ON-OFF. For example... Figure 5A As shown, Figure 5AThis is a schematic diagram of a fixed-length synchronization header waveform corresponding to different m values ​​in an embodiment of this disclosure. The duration of SIP ON-OFF-ON-OFF corresponds to {1 / 12 OFDM symbol, 1 / 12 OFDM symbol, 1 / 12 OFDM symbol, 1 / 4 OFDM symbol}. Correspondingly, as... Figure 5A As shown, CAP occupies 1.5 or 3 / 2 OFDM symbols. Simultaneously, the "ON-OFF" pattern of CAP is a continuous alternation of ON-OFF, and the sum of the ON and OFF states contained in CAP is 1.5*m ("*", indicating multiplication) or 3 / 2*m. The number of ON states contained in CAP is... in, This indicates a floor function (rounding up). CAP includes the number of OFF values. This indicates a floor operation. Based on this design, the length of the ON or OFF symbol is 1 / m OFDM symbols. The value of m belongs to the set {2, 4, 6, 8, 12, 16, 24, 32} or a subset thereof. For example, the value of m belongs to the sets {2, 8, 32}, {2, 6, 24}, etc.

[0386] Optionally, in some embodiments, Figure 5A When m=2, the reference duration (that is, the first reference duration and the second reference duration can have the same value) can be 1 / 12 OFDM symbols, the SIP mapping sequence (an optional example of the first sequence) can be 101000, and the CAP mapping sequence (an optional example of the second sequence) can be 111111000000111111.

[0387] Optionally, in some embodiments, Figure 5A When m=4, the reference duration (i.e., the first and second reference durations can have the same value) can be 1 / 12 of an OFDM symbol, the SIP mapping sequence (an optional example of the first sequence) can be 101000, and the CAP mapping sequence (an optional example of the second sequence) can be 111000111000111000. For sequences with other values ​​of m, they can be as follows... Figure 5A As shown, and so on.

[0388] Optionally, in some embodiments, the first reference duration and the second reference duration may also be different durations, such as... Figure 5AIn the case where m is 24, the first reference duration can be 1 / 12 of an OFDM symbol, the SIP-mapped sequence (an optional example of the first sequence mentioned above) can be 101000, and the second reference duration can be the duration occupied by each bit in the CAP-mapped sequence. In this case, the second reference duration is less than the first reference duration, and so on, without any restrictions.

[0389] Optionally, in some embodiments, in mode two, the SIP can occupy 0.5 or 1 / 2 OFDM symbols, and the "ON-OFF" pattern is a fixed ON-OFF. For example... Figure 5B As shown, Figure 5B This is a schematic diagram of another fixed-length synchronization header waveform corresponding to different m values ​​in this embodiment of the present disclosure. The ON-OFF time of SIP corresponds to {1 / 8 OFDM symbol, 3 / 8 OFDM symbol}. Accordingly, as... Figure 5B As shown, CAP occupies 1.5 or 3 / 2 OFDM symbols. Simultaneously, the "ON-OFF" pattern of CAP is a continuous alternation of ON-OFF, and the sum of ON and OFF states contained in CAP is 1.5*m or 3 / 2*m. The number of ON states contained in CAP is... The number of OFFs included in CAP is Based on this design, the length of the ON or OFF symbol is 1 / m OFDM symbol. The value of m belongs to the set {2, 4, 6, 8, 12, 16, 24, 32} or a subset thereof. For example, the value of m belongs to the sets {2, 8, 32}, {2, 6, 24}, etc.

[0390] Optionally, in some embodiments, in Figure 5B When m=2, the reference duration (that is, the first reference duration and the second reference duration can have the same value) can be 1 / 8 OFDM symbol, the SIP mapping sequence (an optional example of the first sequence) can be 1000, and the CAP mapping sequence (an optional example of the second sequence) can be 111100001111.

[0391] As can be seen from the above examples, the method provided in this disclosure provides richer transition edges, which facilitates more accurate clock calibration on the receiving side.

[0392] Optionally, in some embodiments, corresponding to Scheme 2, a variable-length synchronization header design is provided. For example, an AIoT device receives a first signal and determines the transmission start position and clock reference information of a first channel based on the first signal. The first signal includes a first part and a second part. The first part of the first signal is a start indication part (SIP) occupying M time units and mapping a first sequence, used to indicate the transmission start position of the first channel. The second part of the first signal is a clock acquisition part (CAP) occupying N time units and mapping a second sequence, used to indicate the clock reference information of the first channel. Here, M and N are both positive numbers.

[0393] Optionally, in some embodiments, the design of the start indication section SIP and the clock acquisition section CAP, including the length and "ON-OFF" pattern, will be described in two specific implementation methods below.

[0394] Optionally, in some embodiments, in Method 1, the SIP occupies 0.5 or 1 / 2 OFDM symbols, and the "ON-OFF" pattern is a fixed ON-OFF-ON-OFF. For example... Figure 5C As shown, Figure 5C This is a variable-length synchronization header waveform corresponding to different values ​​of m in this embodiment of the disclosure. The duration of SIP ON-OFF-ON-OFF corresponds to {1 / 12 OFDM symbol, 1 / 12 OFDM symbol, 1 / 12 OFDM symbol, 1 / 4 OFDM symbol}. Correspondingly, as... Figure 5C As shown, CAP occupies a maximum of 1.5 or 3 / 2 OFDM symbols, corresponding to the case where m equals 2, and the "ON-OFF" pattern of CAP is a fixed ON-OFF-ON. One ON or OFF symbol occupies a length of 1 / m OFDM symbols. The value of m belongs to the set {2, 4, 6, 8, 12, 16, 24, 32} or a subset thereof. For example, the value of m belongs to the sets {2, 8, 32}, {2, 6, 24}, etc.

[0395] Optionally, in some embodiments, in Method 2, the SIP occupies 0.5 or 1 / 2 OFDM symbols, and the "ON-OFF" pattern is a fixed ON-OFF. For example... Figure 5D As shown, Figure 5D This embodiment of the present disclosure shows another variable-length synchronization header waveform corresponding to different values ​​of m. The ON-OFF duration of SIP corresponds to {1 / 8 OFDM symbol, 3 / 8 OFDM symbol}. Correspondingly, as... Figure 5DAs shown, CAP occupies a maximum of 1.5 or 3 / 2 OFDM symbols, corresponding to the case where m equals 2, and the "ON-OFF" pattern of CAP is a fixed ON-OFF-ON. One ON or OFF symbol occupies a length of 1 / m OFDM symbols. The value of m belongs to the set {2, 4, 6, 8, 12, 16, 24, 32} or a subset thereof. For example, the value of m belongs to the sets {2, 8, 32}, {2, 6, 24}, etc.

[0396] As can be seen from the above examples, the method provided in this disclosure embodiment can improve the data transmission rate of R2D when the same value of m is used.

[0397] This disclosure also provides embodiments of an apparatus for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Alternatively, another apparatus is provided that includes units or modules for implementing the steps performed by a network device (e.g., a RAN) in any of the above methods.

[0398] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through a configuration file, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0399] In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. Furthermore, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a Neural Network Processing Unit (NPU), a Tensor Processing Unit (TPU), or a Deep Learning Processing Unit (DPU).

[0400] Figure 6 This is a schematic diagram of the structure of the communication device proposed in the embodiments of this disclosure. Figure 6 As shown, the communication device 6100 may include at least one of the following: a transceiver module 6101, a processing module 6102, etc.

[0401] In some embodiments, the communication device 6100 is a first device, wherein...

[0402] The transceiver module 6101 is used to receive a first signal, the first signal including at least one of the following: a first part and a second part, wherein the first part is used to indicate the transmission start position of the first channel, and the second part is used to indicate the clock reference information of the first channel.

[0403] The processing module 6102 is used to determine, based on the first signal, at least one of the transmission start position of the first channel and clock reference information.

[0404] Optionally, in some embodiments of this disclosure, the duration corresponding to the first part is M time units, and / or the duration corresponding to the second part is less than or equal to N time units, where M and N are positive numbers.

[0405] Optionally, in some embodiments of this disclosure, the first portion maps to a first pattern, the first pattern comprising: a first modulation symbol, a second modulation symbol, a third modulation symbol, and a fourth modulation symbol arranged sequentially adjacent to each other; wherein,

[0406] The first modulation symbol and the third modulation symbol correspond to the first modulation information;

[0407] The second modulation symbol and the fourth modulation symbol correspond to the second modulation information, and the first modulation information and the second modulation information are different.

[0408] Optionally, in some embodiments of this disclosure, the first modulation symbol corresponds to a first sub-duration, the second modulation symbol corresponds to a second sub-duration, the third modulation symbol corresponds to a third sub-duration, and the fourth modulation symbol corresponds to a fourth sub-duration; wherein,

[0409] The first sub-duration, the second sub-duration, and the third sub-duration are the same;

[0410] The fourth sub-duration is the sum of the first sub-duration, the second sub-duration, and the third sub-duration.

[0411] Optionally, in some embodiments of this disclosure, the first portion maps to a first pattern, the first pattern comprising: sequentially adjacent first modulation symbols and second modulation symbols; wherein,

[0412] The first modulation symbol corresponds to the first modulation information, and the second modulation symbol corresponds to the second modulation information. The first modulation information and the second modulation information are different.

[0413] Optionally, in some embodiments of this disclosure, the first modulation symbol corresponds to a first sub-duration and the second modulation symbol corresponds to a second sub-duration; wherein the first sub-duration and the second sub-duration are different, and the first sub-duration is less than the second sub-duration.

[0414] Optionally, in some embodiments of this disclosure, the second portion maps to a second pattern, the second pattern including: at least one fifth modulation symbol and at least one sixth modulation symbol; wherein,

[0415] A fifth modulation symbol and a sixth modulation symbol are adjacent to each other; different fifth modulation symbols are not adjacent to each other; different sixth modulation symbols are not adjacent to each other.

[0416] The fifth modulation symbol corresponds to the first modulation information, and the sixth modulation symbol corresponds to the second modulation information. The first modulation information and the second modulation information are different.

[0417] Optionally, in some embodiments of this disclosure, the duration corresponding to the second part is equal to the N time units; wherein,

[0418] The number of the fifth modulation symbols is as agreed upon in the protocol; and / or

[0419] The number of the sixth modulation symbols is as agreed upon in the protocol; and / or

[0420] The total number of the fifth modulation symbol and the sixth modulation symbol is as agreed upon in the protocol.

[0421] Optionally, in some embodiments of this disclosure, the duration corresponding to the second part is equal to the N time units; wherein,

[0422] The total number of the fifth modulation symbol and the sixth modulation symbol is the product of the first value and N;

[0423] The number of the fifth modulation symbols is equal to the value obtained by rounding up the ratio of the product value to 2;

[0424] The number of the sixth modulation symbols is equal to the value obtained by rounding down the ratio of the product value to 2.

[0425] Optionally, in some embodiments of this disclosure, the duration corresponding to the second part is less than or equal to the N time units, wherein the number of the fifth modulation symbols is two and the number of the sixth modulation symbols is one.

[0426] Optionally, in some embodiments of this disclosure, the fifth modulation symbol corresponds to a fifth sub-duration and the sixth modulation symbol corresponds to a sixth sub-duration; wherein,

[0427] The fifth sub-duration and the sixth sub-duration are the same, and the fifth sub-duration and the sixth sub-duration are negatively correlated with the first value.

[0428] Optionally, in some embodiments of this disclosure, the time unit includes: Orthogonal Frequency Division Multiplexing (OFDM) symbols.

[0429] Optionally, in some embodiments of this disclosure, the first part maps to a first sequence, the first sequence comprising: a first part sequence, a second part sequence, a third part sequence, and a fourth part sequence that are sequentially adjacent, wherein the first part sequence comprises X first bits, the second part sequence comprises X second bits, the third part sequence comprises X first bits, and the fourth part sequence comprises Y second bits, where X and Y are positive integers, and the first bits and the second bits are different.

[0430] Optionally, in some embodiments of this disclosure, the duration corresponding to the first bit is a first reference duration, the duration corresponding to the second bit is a second reference duration, and the first reference duration and the second reference duration are the same.

[0431] Optionally, in some embodiments of this disclosure, wherein,

[0432] The Y is equal to 3 times the X.

[0433] Optionally, in some embodiments of this disclosure, the first part maps to a first sequence, the first sequence comprising: a first part sequence and a second part sequence that are sequentially adjacent, wherein the first part sequence comprises X first bits, the second part sequence comprises Y second bits, X and Y are positive integers, and the first bits and the second bits are different.

[0434] Optionally, in some embodiments of this disclosure, wherein,

[0435] X is less than or equal to Y.

[0436] Optionally, in some embodiments of this disclosure, the second part maps to a second sequence, the second sequence comprising: at least one fifth part sequence and at least one sixth part sequence, wherein the fifth part sequence comprises P first bits, and the sixth part sequence comprises P second bits, where P is a positive integer; wherein,

[0437] One of the fifth part sequences and one of the sixth part sequences are adjacent, different fifth part sequences are not adjacent, and different sixth part sequences are not adjacent.

[0438] Optionally, in some embodiments of this disclosure, the duration corresponding to the second part is equal to the N time units; wherein,

[0439] The number of sequences in the fifth part is as agreed upon in the protocol; and / or

[0440] The number of sequences in the sixth part is as agreed upon in the protocol; and / or

[0441] The total number of the fifth and sixth part sequences is as agreed upon in the protocol.

[0442] Optionally, in some embodiments of this disclosure, the duration corresponding to the second part is equal to the N time units; wherein, the total number of the fifth part sequence and the sixth part sequence is positively correlated with the first value, and the number of the fifth part sequence is greater than or equal to the number of the sixth part sequence.

[0443] Optionally, in some embodiments of this disclosure, the duration corresponding to the second part is less than or equal to the N time units, wherein the number of the fifth part sequence is two, and the number of the sixth part sequence is one.

[0444] Optionally, in some embodiments of this disclosure, the first value is at least one value in a first set of values; or, the first value is at least one value in a second set of values, wherein the second set of values ​​is a subset of the first set of values.

[0445] Optionally, the transceiver module described above is used to perform at least one of the communication steps such as sending and / or receiving performed by the first device in any of the above methods, which will not be elaborated here.

[0446] Optionally, the above processing module is used to perform at least one of the other steps performed by the first device in any of the above methods, which will not be elaborated here.

[0447] In some embodiments, the communication device 6100 is a second device, wherein...

[0448] The transceiver module 6101 is used to transmit a first signal, the first signal including at least one of the following: a first part and a second part, wherein the first part is used to indicate the transmission start position of the first channel, the second part is used to indicate the clock reference information of the first channel, and the first signal is used to determine at least one of the transmission start position and the clock reference information of the first channel.

[0449] Optionally, in some embodiments of this disclosure, the duration corresponding to the first part is M time units, and / or the duration corresponding to the second part is less than or equal to N time units, where M and N are positive numbers.

[0450] Optionally, in some embodiments of this disclosure, the first portion maps to a first pattern, the first pattern comprising: a first modulation symbol, a second modulation symbol, a third modulation symbol, and a fourth modulation symbol arranged sequentially adjacent to each other; wherein,

[0451] The first modulation symbol and the third modulation symbol correspond to the first modulation information;

[0452] The second modulation symbol and the fourth modulation symbol correspond to the second modulation information, and the first modulation information and the second modulation information are different.

[0453] Optionally, in some embodiments of this disclosure, the first modulation symbol corresponds to a first sub-duration, the second modulation symbol corresponds to a second sub-duration, the third modulation symbol corresponds to a third sub-duration, and the fourth modulation symbol corresponds to a fourth sub-duration; wherein,

[0454] The first sub-duration, the second sub-duration, and the third sub-duration are the same;

[0455] The fourth sub-duration is the sum of the first sub-duration, the second sub-duration, and the third sub-duration.

[0456] Optionally, in some embodiments of this disclosure, the first portion maps to a first pattern, the first pattern comprising: sequentially adjacent first modulation symbols and second modulation symbols; wherein,

[0457] The first modulation symbol corresponds to the first modulation information, and the second modulation symbol corresponds to the second modulation information. The first modulation information and the second modulation information are different.

[0458] Optionally, in some embodiments of this disclosure, the first modulation symbol corresponds to a first sub-duration and the second modulation symbol corresponds to a second sub-duration; wherein the first sub-duration and the second sub-duration are different, and the first sub-duration is less than the second sub-duration.

[0459] Optionally, in some embodiments of this disclosure, the second portion maps to a second pattern, the second pattern including: at least one fifth modulation symbol and at least one sixth modulation symbol; wherein,

[0460] A fifth modulation symbol and a sixth modulation symbol are adjacent to each other; different fifth modulation symbols are not adjacent to each other; different sixth modulation symbols are not adjacent to each other.

[0461] The fifth modulation symbol corresponds to the first modulation information, and the sixth modulation symbol corresponds to the second modulation information. The first modulation information and the second modulation information are different.

[0462] Optionally, in some embodiments of this disclosure, the duration corresponding to the second part is equal to the N time units; wherein,

[0463] The number of the fifth modulation symbols is as agreed upon in the protocol; and / or

[0464] The number of the sixth modulation symbols is as agreed upon in the protocol; and / or

[0465] The total number of the fifth modulation symbol and the sixth modulation symbol is as agreed upon in the protocol.

[0466] Optionally, in some embodiments of this disclosure, the duration corresponding to the second part is equal to the N time units; wherein,

[0467] The total number of the fifth modulation symbol and the sixth modulation symbol is the product of the first value and N;

[0468] The number of the fifth modulation symbols is equal to the value obtained by rounding up the ratio of the product value to 2;

[0469] The number of the sixth modulation symbols is equal to the value obtained by rounding down the ratio of the product value to 2.

[0470] Optionally, in some embodiments of this disclosure, the duration corresponding to the second part is less than or equal to the N time units, wherein the number of the fifth modulation symbols is two and the number of the sixth modulation symbols is one.

[0471] Optionally, in some embodiments of this disclosure, the fifth modulation symbol corresponds to a fifth sub-duration and the sixth modulation symbol corresponds to a sixth sub-duration; wherein,

[0472] The fifth sub-duration and the sixth sub-duration are the same, and the fifth sub-duration and the sixth sub-duration are negatively correlated with the first value.

[0473] Optionally, in some embodiments of this disclosure, the time unit includes: Orthogonal Frequency Division Multiplexing (OFDM) symbols.

[0474] Optionally, in some embodiments of this disclosure, the first part maps to a first sequence, the first sequence comprising: a first part sequence, a second part sequence, a third part sequence, and a fourth part sequence that are sequentially adjacent, wherein the first part sequence comprises X first bits, the second part sequence comprises X second bits, the third part sequence comprises X first bits, and the fourth part sequence comprises Y second bits, where X and Y are positive integers, and the first bits and the second bits are different.

[0475] Optionally, in some embodiments of this disclosure, the duration corresponding to the first bit is a first reference duration, the duration corresponding to the second bit is a second reference duration, and the first reference duration and the second reference duration are the same.

[0476] Optionally, in some embodiments of this disclosure, wherein,

[0477] The Y is equal to 3 times the X.

[0478] Optionally, in some embodiments of this disclosure, the first part maps to a first sequence, the first sequence comprising: a first part sequence and a second part sequence that are sequentially adjacent, wherein the first part sequence comprises X first bits, the second part sequence comprises Y second bits, X and Y are positive integers, and the first bits and the second bits are different.

[0479] Optionally, in some embodiments of this disclosure, wherein,

[0480] X is less than or equal to Y.

[0481] Optionally, in some embodiments of this disclosure, the second part maps to a second sequence, the second sequence comprising: at least one fifth part sequence and at least one sixth part sequence, wherein the fifth part sequence comprises P first bits, and the sixth part sequence comprises P second bits, where P is a positive integer; wherein,

[0482] One of the fifth part sequences and one of the sixth part sequences are adjacent, different fifth part sequences are not adjacent, and different sixth part sequences are not adjacent.

[0483] Optionally, in some embodiments of this disclosure, the duration corresponding to the second part is equal to the N time units; wherein,

[0484] The number of sequences in the fifth part is as agreed upon in the protocol; and / or

[0485] The number of sequences in the sixth part is as agreed upon in the protocol; and / or

[0486] The total number of the fifth and sixth part sequences is as agreed upon in the protocol.

[0487] Optionally, in some embodiments of this disclosure, the duration corresponding to the second part is equal to the N time units; wherein, the total number of the fifth part sequence and the sixth part sequence is positively correlated with the first value, and the number of the fifth part sequence is greater than or equal to the number of the sixth part sequence.

[0488] Optionally, in some embodiments of this disclosure, the duration corresponding to the second part is less than or equal to the N time units, wherein the number of the fifth part sequence is two, and the number of the sixth part sequence is one.

[0489] Optionally, in some embodiments of this disclosure, the first value is at least one value in a first set of values; or, the first value is at least one value in a second set of values, wherein the second set of values ​​is a subset of the first set of values.

[0490] Optionally, the transceiver module described above is used to perform at least one of the communication steps such as sending and / or receiving performed by the second device in any of the above methods, which will not be elaborated here.

[0491] Optionally, the above processing module is used to perform at least one of the other steps performed by the second device in any of the above methods, which will not be elaborated here.

[0492] Figure 7A This is a schematic diagram of the structure of a communication device proposed in an embodiment of this disclosure. The communication device 7100 can be the first device described above, or it can be the second device described above. The communication device 7100 can be a network device (e.g., access network device, core network device, etc.), a terminal (e.g., user equipment, etc.), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above methods. The communication device 7100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0493] like Figure 7A As shown, the communication device 7100 includes one or more processors 7101. The processor 7101 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. The communication device 7100 is used to execute any of the above methods.

[0494] In some embodiments, the communication device 7100 further includes one or more memories 7102 for storing instructions. Optionally, all or part of the memories 7102 may also be located outside the communication device 7100.

[0495] In some embodiments, the communication device 7100 further includes one or more transceivers 7103. When the communication device 7100 includes one or more transceivers 7103, the transceivers 7103 perform at least one of the communication steps such as sending and / or receiving in the above method, and the processor 7101 performs other steps.

[0496] In some embodiments, a transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, etc., may be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., may be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., may be used interchangeably.

[0497] In some embodiments, the communication device 7100 may include one or more interface circuits 7104. Optionally, the interface circuit 7104 is connected to the memory 7102, and the interface circuit 7104 can be used to receive signals from the memory 7102 or other devices, and can be used to send signals to the memory 7102 or other devices. For example, the interface circuit 7104 can read instructions stored in the memory 7102 and send the instructions to the processor 7101.

[0498] The communication device 7100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 7100 described in this disclosure is not limited thereto, and the structure of the communication device 7100 may vary. Figure 7A The limitations. The communication device can be a standalone device or part of a larger device. For example, the communication device can be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally including storage components for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0499] Figure 7B This is a schematic diagram of the chip structure proposed in an embodiment of this disclosure. For cases where the communication device 7100 can be a chip or a chip system, please refer to... Figure 7B The diagram shown is a schematic representation of the structure of chip 7200, but it is not limited to this.

[0500] Chip 7200 includes one or more processors 7201, which are used to perform any of the above methods.

[0501] In some embodiments, chip 7200 further includes one or more interface circuits 7202. Optionally, the interface circuit 7202 is connected to memory 7203, and the interface circuit 7202 can be used to receive signals from memory 7203 or other devices, and the interface circuit 7202 can be used to send signals to memory 7203 or other devices. For example, the interface circuit 7202 can read instructions stored in memory 7203 and send the instructions to processor 7201.

[0502] In some embodiments, the interface circuit 7202 performs at least one of the communication steps such as sending and / or receiving in the above method, and the processor 7201 performs at least one of the other steps.

[0503] In some embodiments, the terms interface circuit, interface, transceiver pin, transceiver, etc., can be used interchangeably.

[0504] In some embodiments, chip 7200 further includes one or more memories 7203 for storing instructions. Optionally, all or part of the memories 7203 may be located outside of chip 7200.

[0505] This disclosure also proposes a storage medium storing instructions that, when executed on the communication device 7100, cause the communication device 7100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0506] This disclosure also provides a program product that, when executed by the communication device 7100, causes the communication device 7100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0507] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

[0508] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this disclosure are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program can be transferred from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVDs)), or semiconductor media (e.g., solid-state disks (SSDs)).

[0509] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0510] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0511] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A communication method, characterized in that, The method is performed by a first device, and the method includes: Receive a first signal, the first signal including at least one of the following: a first part and a second part, wherein the first part is used to indicate the transmission start position of the first channel, and the second part is used to indicate the clock reference information of the first channel; Based on the first signal, determine at least one of the following: the transmission start position of the first channel and the clock reference information.

2. The method as described in claim 1, characterized in that, The duration of the first part is M time units, and / or the duration of the second part is less than or equal to N time units, where M and N are positive numbers.

3. The method as described in claim 2, characterized in that, The first part maps to a first pattern, which includes: a first modulation symbol, a second modulation symbol, a third modulation symbol, and a fourth modulation symbol arranged sequentially adjacent to each other; wherein, The first modulation symbol and the third modulation symbol correspond to the first modulation information; The second modulation symbol and the fourth modulation symbol correspond to the second modulation information, and the first modulation information and the second modulation information are different.

4. The method as described in claim 3, characterized in that, The first modulation symbol corresponds to a first sub-duration, the second modulation symbol corresponds to a second sub-duration, the third modulation symbol corresponds to a third sub-duration, and the fourth modulation symbol corresponds to a fourth sub-duration; wherein... The first sub-duration, the second sub-duration, and the third sub-duration are the same; The fourth sub-duration is the sum of the first sub-duration, the second sub-duration, and the third sub-duration.

5. The method as described in claim 2, characterized in that, The first part maps to a first pattern, the first pattern comprising: sequentially adjacent first modulation symbols and second modulation symbols; wherein, The first modulation symbol corresponds to the first modulation information, and the second modulation symbol corresponds to the second modulation information. The first modulation information and the second modulation information are different.

6. The method as described in claim 5, characterized in that, The first modulation symbol corresponds to a first sub-duration, and the second modulation symbol corresponds to a second sub-duration; wherein the first sub-duration and the second sub-duration are different, and the first sub-duration is less than the second sub-duration.

7. The method according to any one of claims 2-6, characterized in that, The second part maps to a second pattern, the second pattern comprising: at least one fifth modulation symbol and at least one sixth modulation symbol; wherein, A fifth modulation symbol and a sixth modulation symbol are adjacent to each other; different fifth modulation symbols are not adjacent to each other; different sixth modulation symbols are not adjacent to each other. The fifth modulation symbol corresponds to the first modulation information, and the sixth modulation symbol corresponds to the second modulation information. The first modulation information and the second modulation information are different.

8. The method as described in claim 7, characterized in that, The duration corresponding to the second part is equal to the N time units; wherein, The number of the fifth modulation symbols is as agreed upon in the protocol; and / or The number of the sixth modulation symbols is as agreed upon in the protocol; and / or The total number of the fifth modulation symbol and the sixth modulation symbol is as agreed upon in the protocol.

9. The method as described in claim 7, characterized in that, The duration corresponding to the second part is equal to the N time units; wherein, The total number of the fifth modulation symbol and the sixth modulation symbol is the product of the first value and N; The number of the fifth modulation symbols is equal to the value obtained by rounding up the ratio of the product value to 2; The number of the sixth modulation symbols is equal to the value obtained by rounding down the ratio of the product value to 2.

10. The method as described in claim 7, characterized in that, The duration corresponding to the second part is less than or equal to the N time units, wherein the number of the fifth modulation symbol is two and the number of the sixth modulation symbol is one.

11. The method according to any one of claims 7-10, characterized in that, The fifth modulation symbol corresponds to the fifth sub-duration, and the sixth modulation symbol corresponds to the sixth sub-duration; wherein... The fifth sub-duration and the sixth sub-duration are the same, and the fifth sub-duration and the sixth sub-duration are negatively correlated with the first value.

12. The method according to any one of claims 3-11, characterized in that, The time unit includes: Orthogonal Frequency Division Multiplexing (OFDM) symbols.

13. The method as described in claim 2, characterized in that, The first part maps to a first sequence, which includes: a first part sequence, a second part sequence, a third part sequence, and a fourth part sequence that are sequentially adjacent. The first part sequence includes X first bits, the second part sequence includes X second bits, the third part sequence includes X first bits, and the fourth part sequence includes Y second bits, where X and Y are positive integers, and the first bits and the second bits are different.

14. The method as described in claim 13, characterized in that, The duration corresponding to the first bit is the first reference duration, and the duration corresponding to the second bit is the second reference duration. The first reference duration and the second reference duration are the same.

15. The method according to any one of claims 13-14, characterized in that, in, The Y is equal to 3 times the X.

16. The method as described in claim 2, characterized in that, The first part maps to the first sequence, which includes: a first part sequence and a second part sequence that are sequentially adjacent. The first part sequence includes X first bits, and the second part sequence includes Y second bits, where X and Y are positive integers, and the first bits and the second bits are different.

17. The method as described in claim 16, characterized in that, in, X is less than or equal to Y.

18. The method according to any one of claims 2, 13-17, characterized in that, The second part maps to a second sequence, which includes at least one fifth part sequence and at least one sixth part sequence. The fifth part sequence includes P first bits, and the sixth part sequence includes P second bits, where P is a positive integer. A fifth part sequence and a sixth part sequence are adjacent, different fifth part sequences are not adjacent, and different sixth part sequences are not adjacent.

19. The method as described in claim 18, characterized in that, The duration corresponding to the second part is equal to the N time units; wherein, The number of sequences in the fifth part is as agreed upon in the protocol; and / or The number of sequences in the sixth part is as agreed upon in the protocol; and / or The total number of the fifth and sixth part sequences is as agreed upon in the protocol.

20. The method as described in claim 18, characterized in that, The duration corresponding to the second part is equal to the N time units; wherein, the total number of the fifth part sequence and the sixth part sequence is positively correlated with the first value, and the number of the fifth part sequence is greater than or equal to the number of the sixth part sequence.

21. The method as described in claim 18, characterized in that, The duration corresponding to the second part is less than or equal to the N time units, wherein the number of the fifth part sequence is two, and the number of the sixth part sequence is one.

22. The method according to any one of claims 9, 11, and 20, characterized in that, The first value is at least one value in a first set of values; or, the first value is at least one value in a second set of values, where the second set of values ​​is a subset of the first set of values.

23. A communication method, characterized in that, The method is performed by a second device, and the method includes: Send a first signal, the first signal including at least one of the following: a first part and a second part, wherein the first part is used to indicate the transmission start position of the first channel, the second part is used to indicate the clock reference information of the first channel, and the first signal is used to determine at least one of the transmission start position and the clock reference information of the first channel.

24. The method as described in claim 23, characterized in that, The duration of the first part is M time units, and / or the duration of the second part is less than or equal to N time units, where M and N are positive numbers.

25. The method as described in claim 24, characterized in that, The first part maps to a first pattern, which includes: a first modulation symbol, a second modulation symbol, a third modulation symbol, and a fourth modulation symbol arranged sequentially adjacent to each other; wherein, The first modulation symbol and the third modulation symbol correspond to the first modulation information; The second modulation symbol and the fourth modulation symbol correspond to the second modulation information, and the first modulation information and the second modulation information are different.

26. The method as described in claim 25, characterized in that, The first modulation symbol corresponds to a first sub-duration, the second modulation symbol corresponds to a second sub-duration, the third modulation symbol corresponds to a third sub-duration, and the fourth modulation symbol corresponds to a fourth sub-duration; wherein... The first sub-duration, the second sub-duration, and the third sub-duration are the same; The fourth sub-duration is the sum of the first sub-duration, the second sub-duration, and the third sub-duration.

27. The method as described in claim 24, characterized in that, The first part maps to a first pattern, the first pattern comprising: sequentially adjacent first modulation symbols and second modulation symbols; wherein, The first modulation symbol corresponds to the first modulation information, and the second modulation symbol corresponds to the second modulation information. The first modulation information and the second modulation information are different.

28. The method as described in claim 27, characterized in that, The first modulation symbol corresponds to a first sub-duration, and the second modulation symbol corresponds to a second sub-duration; wherein the first sub-duration and the second sub-duration are different, and the first sub-duration is less than the second sub-duration.

29. The method according to any one of claims 24-28, characterized in that, The second part maps to a second pattern, the second pattern comprising: at least one fifth modulation symbol and at least one sixth modulation symbol; wherein, A fifth modulation symbol and a sixth modulation symbol are adjacent to each other; different fifth modulation symbols are not adjacent to each other; different sixth modulation symbols are not adjacent to each other. The fifth modulation symbol corresponds to the first modulation information, and the sixth modulation symbol corresponds to the second modulation information. The first modulation information and the second modulation information are different.

30. The method as described in claim 29, characterized in that, The duration corresponding to the second part is equal to the N time units; wherein, The number of the fifth modulation symbols is as agreed upon in the protocol; and / or The number of the sixth modulation symbols is as agreed upon in the protocol; and / or The total number of the fifth modulation symbol and the sixth modulation symbol is as agreed upon in the protocol.

31. The method as described in claim 29, characterized in that, The duration corresponding to the second part is equal to the N time units; wherein, The total number of the fifth modulation symbol and the sixth modulation symbol is the product of the first value and N; The number of the fifth modulation symbols is equal to the value obtained by rounding up the ratio of the product value to 2; The number of the sixth modulation symbols is equal to the value obtained by rounding down the ratio of the product value to 2.

32. The method as described in claim 29, characterized in that, The duration corresponding to the second part is less than or equal to the N time units, wherein the number of the fifth modulation symbol is two and the number of the sixth modulation symbol is one.

33. The method according to any one of claims 29-32, characterized in that, The fifth modulation symbol corresponds to the fifth sub-duration, and the sixth modulation symbol corresponds to the sixth sub-duration; wherein... The fifth sub-duration and the sixth sub-duration are the same, and the fifth sub-duration and the sixth sub-duration are negatively correlated with the first value.

34. The method according to any one of claims 25-33, characterized in that, The time unit includes: Orthogonal Frequency Division Multiplexing (OFDM) symbols.

35. The method as described in claim 24, characterized in that, The first part maps to a first sequence, which includes: a first part sequence, a second part sequence, a third part sequence, and a fourth part sequence that are sequentially adjacent. The first part sequence includes X first bits, the second part sequence includes X second bits, the third part sequence includes X first bits, and the fourth part sequence includes Y second bits, where X and Y are positive integers, and the first bits and the second bits are different.

36. The method as described in claim 35, characterized in that, The duration corresponding to the first bit is the first reference duration, and the duration corresponding to the second bit is the second reference duration. The first reference duration and the second reference duration are the same.

37. The method according to any one of claims 35-36, characterized in that, in, The Y is equal to 3 times the X.

38. The method as described in claim 24, characterized in that, The first part maps to the first sequence, which includes: a first part sequence and a second part sequence that are sequentially adjacent. The first part sequence includes X first bits, and the second part sequence includes Y second bits, where X and Y are positive integers, and the first bits and the second bits are different.

39. The method as described in claim 38, characterized in that, in, X is less than or equal to Y.

40. The method according to any one of claims 24, 35-39, characterized in that, The second part maps to a second sequence, which includes at least one fifth part sequence and at least one sixth part sequence. The fifth part sequence includes P first bits, and the sixth part sequence includes P second bits, where P is a positive integer. A fifth part sequence and a sixth part sequence are adjacent, different fifth part sequences are not adjacent, and different sixth part sequences are not adjacent.

41. The method as described in claim 40, characterized in that, The duration corresponding to the second part is equal to the N time units; wherein, The number of sequences in the fifth part is as agreed upon in the protocol; and / or The number of sequences in the sixth part is as agreed upon in the protocol; and / or The total number of the fifth and sixth part sequences is as agreed upon in the protocol.

42. The method as described in claim 40, characterized in that, The duration corresponding to the second part is equal to the N time units; wherein, the total number of the fifth part sequence and the sixth part sequence is positively correlated with the first value, and the number of the fifth part sequence is greater than or equal to the number of the sixth part sequence.

43. The method as described in claim 40, characterized in that, The duration corresponding to the second part is less than or equal to the N time units, wherein the number of the fifth part sequence is two, and the number of the sixth part sequence is one.

44. The method according to any one of claims 31, 33, and 42, characterized in that, The first value is at least one value in a first set of values; or, the first value is at least one value in a second set of values, where the second set of values ​​is a subset of the first set of values.

45. A communication device, characterized in that, The communication device is used to perform the method as described in any one of claims 1-22, 23-44.

46. ​​A communication system, characterized in that, The device includes a first device and a second device, wherein the first device is used to perform the method as described in any one of claims 1-22, and the second device is used to perform the method as described in any one of claims 23-44.

47. A storage medium storing instructions, characterized in that, When the instructions are executed on the communication device, the communication device performs the method as described in any one of claims 1-44.

48. A computer program product, characterized in that, Includes a computer program that, when executed by a processor, implements the method of any one of claims 1-44.

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