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

Abstract

Provided in the present disclosure are a communication method and apparatus, a communication device, a communication system, and a storage medium. The method comprises: determining a first modulation mode and / or a first pattern, wherein the first modulation mode is used for modulating first information, the first pattern is a pattern corresponding to the first information, the first information is used for performing time-frequency synchronization between a first device and a second device, and the second device is a device that performs communication on the basis of collected energy; and on the basis of the first modulation mode and / or the first pattern, sending the first information to at least one second device. The method of the present disclosure ensures time-frequency synchronization between a first device and a second device.

Description

Communication method and device, communication equipment, communication system, and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to communication methods and devices, communication equipment, communication systems, and storage media. Background Art

[0002] In the communication system, an Ambient Internet of Things (A-IoT) device is introduced. Optionally, the A-IoT device has at least one of the following characteristics: a large number of A-IoT devices that can be connected to the network, the ability to adapt to the needs of different application scenarios, a simple structure, low hardware cost, low maintenance cost, low power consumption, and the ability to retain a power supply device or not retain a power supply device.

[0003] Summary of the Invention

[0004] The present disclosure provides a communication method and apparatus, a communication device, a communication system, and a storage medium.

[0005] According to a first aspect of an embodiment of the present disclosure, a communication method is provided, which is performed by a first device. The method includes:

[0006] Determining a first modulation mode and / or a first pattern, where the first modulation mode is used to modulate first information, the first pattern is a pattern corresponding to the first information, and the first information is used for time-frequency synchronization between the first device and a second device, where the second device is a device that communicates based on collected energy;

[0007] The first information is sent to at least one second device based on a first modulation method and / or a first pattern.

[0008] According to a second aspect of an embodiment of the present disclosure, a communication method is provided, which is performed by a second device, where the second device is a device that communicates based on collected energy. The method includes:

[0009] Determine a first modulation mode and / or a first pattern, where the first modulation mode is used to modulate first information, the first pattern is a pattern corresponding to the first information, and the first information is used for time-frequency synchronization between the first device and the second device;

[0010] The first information is received based on the first modulation mode and / or the first pattern.

[0011] According to a third aspect of an embodiment of the present disclosure, a communication method is proposed for use in a communication system, wherein the communication system includes a first device and a second device; the second device is an environmental Internet of Things device, and the method includes:

[0012] The first device determines a first modulation mode and / or a first pattern, where the first modulation mode is used to modulate first information, the first pattern is a pattern corresponding to the first information, and the first information is used for time-frequency synchronization between the first device and a second device, where the second device is a device that communicates based on collected energy;

[0013] The first device sends the first information to at least one second device based on a first modulation mode and / or a first pattern;

[0014] The second device determines a first modulation mode and / or a first pattern;

[0015] The second device receives the first information based on a first modulation method and / or a first pattern.

[0016] According to a fourth aspect of an embodiment of the present disclosure, a first device is provided, including:

[0017] a processing module, configured to determine a first modulation mode and / or a first pattern, wherein the first modulation mode is used to modulate first information, the first pattern is a pattern corresponding to the first information, the first information is used for time-frequency synchronization between the first device and a second device, and the second device is a device that communicates based on collected energy;

[0018] The transceiver module is configured to send the first information to at least one second device based on a first modulation mode and / or a first pattern.

[0019] According to a fifth aspect of the embodiments of the present disclosure, a second device is provided, including:

[0020] a processing module, configured to determine a first modulation mode and / or a first pattern, where the first modulation mode is used to modulate first information, the first pattern is a pattern corresponding to the first information, and the first information is used for time-frequency synchronization between the first device and the second device;

[0021] A transceiver module is configured to receive the first information based on the first modulation mode and / or the first pattern.

[0022] According to a sixth aspect of an embodiment of the present disclosure, a communication device is provided, including:

[0023] one or more processors;

[0024] The processor is used to call instructions to enable the communication device to execute the communication method described in any one of the first aspect to the second aspect.

[0025] According to the seventh aspect of an embodiment of the present disclosure, a communication system is proposed, characterized in that it includes a first device and a second device, wherein the first device is configured to implement the communication method described in the first aspect, and the second device is configured to implement the communication method described in the second aspect.

[0026] According to an eighth aspect of an embodiment of the present disclosure, a storage medium is proposed, which stores instructions, and is characterized in that when the instructions are executed on a communication device, the communication device executes the communication method as described in any one of the first to second aspects. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present disclosure will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0028] FIG1A is a schematic diagram of the architecture of some communication systems provided by embodiments of the present disclosure;

[0029] 1B-1F are schematic diagrams of the architecture of A-IoT devices communicating according to an embodiment of the present disclosure;

[0030] FIG2A is a flow chart of a communication method provided in yet another embodiment of the present disclosure;

[0031] FIG2B is a schematic diagram of an interaction of a first pattern according to an embodiment of the present disclosure;

[0032] FIG3A is a flow chart of a communication method provided in yet another embodiment of the present disclosure;

[0033] FIG3B is a flow chart of a communication method provided in yet another embodiment of the present disclosure;

[0034] FIG4A is a flow chart of a communication method provided in yet another embodiment of the present disclosure;

[0035] FIG4B is a flow chart of a communication method provided in yet another embodiment of the present disclosure;

[0036] FIG5 is a flow chart of a communication method provided in yet another embodiment of the present disclosure;

[0037] FIG6A is a schematic structural diagram of a first device provided by an embodiment of the present disclosure;

[0038] FIG6B is a schematic structural diagram of a second device provided by an embodiment of the present disclosure;

[0039] FIG7A is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure;

[0040] FIG7B is a schematic structural diagram of a chip provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0041] The embodiments of the present disclosure provide a communication method and apparatus, a communication device, a communication system, and a storage medium.

[0042] In a first aspect, an embodiment of the present disclosure provides a communication method, which is performed by a first device. The method includes:

[0043] Determining a first modulation mode and / or a first pattern, where the first modulation mode is used to modulate first information, the first pattern is a pattern corresponding to the first information, and the first information is used for time-frequency synchronization between the first device and a second device, where the second device is a device that communicates based on collected energy;

[0044] The first information is sent to at least one second device based on a first modulation method and / or a first pattern.

[0045] In the above embodiment, the first device will determine the first modulation mode and / or the first pattern, and will send the first information to at least one second device based on the first modulation mode and / or the first pattern. The first modulation mode is used to modulate the first information, the first pattern is the pattern corresponding to the first information, and the first information is used for the first device and the second device to perform time-frequency synchronization, and the second device is: a device that communicates based on the collected energy, for example, an environmental Internet of Things device. It can be seen that in the method disclosed herein, the modulation mode and pattern of the time-frequency synchronization information (i.e., the first information) between the first device and the second device (i.e., the environmental Internet of Things device) will be determined, so that the first device can successfully send the time-frequency synchronization information to the second device based on the determined modulation mode and / or pattern, thereby ensuring the successful transmission of the time-frequency synchronization information between the first device and the second device, and ensuring the time-frequency synchronization between the first device and the second device.

[0046] In conjunction with some embodiments of the first aspect, in some embodiments, determining the first modulation mode and / or the first pattern includes:

[0047] The first modulation mode and / or first pattern is determined based on protocol agreement.

[0048] In the above embodiment, a method is provided for a first device to determine a first modulation mode and / or a first pattern, so that the first device can successfully determine the first modulation mode and / or the first pattern, and then the first device can subsequently successfully send first information (i.e., time-frequency synchronization information) to the second device based on the first modulation mode and / or the first pattern, thereby ensuring the successful transmission of the time-frequency synchronization information between the first device and the second device, and ensuring the time-frequency synchronization between the first device and the second device.

[0049] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0050] The first modulation mode and / or the first pattern are configured for at least one second device.

[0051] In the above embodiment, the first device will also configure the first modulation mode and / or the first pattern to the second device, so that the second device can successfully know the first modulation mode and / or the first pattern corresponding to the time-frequency synchronization information, so that the second device can successfully receive the time-frequency synchronization information based on the first modulation mode and / or the first pattern, and can further achieve time-frequency synchronization with the first device based on the received time-frequency synchronization information, thereby ensuring the time-frequency synchronization between the first device and the second device.

[0052] In conjunction with some embodiments of the first aspect, in some embodiments, the first information includes at least one of the following:

[0053] a first synchronization signal;

[0054] First preamble.

[0055] In the above embodiment, it is defined what specific information the first information can be, and the form of the first information is clarified, so that the method disclosed in the present invention can be implemented in actual communication scenarios to successfully achieve time and frequency synchronization between the first device and the second device in the Internet of Things communication scenario.

[0056] In combination with some embodiments of the first aspect, in some embodiments, the process of the first device sending the first information is performed independently or simultaneously with the first transmission process of the first device, and the first transmission process is: the process of the first device sending second information to the second device, and the second information is any information other than the first information.

[0057] In the above embodiment, the relationship between the sending process of the first information and other transmission processes (i.e., the aforementioned first transmission process) is defined, so that the sending process of the first information can reasonably coexist with other transmission processes, ensuring that the first information and other transmission processes will not affect each other, thereby ensuring the communication stability between the first device and the second device.

[0058] In conjunction with some embodiments of the first aspect, in some embodiments, the first information is sent in at least one of the following ways:

[0059] Periodically sending the first information; wherein one or more first information are sent in one period;

[0060] The first information is sent once; wherein, one or more first information are sent once the first information is sent.

[0061] In the above embodiment, the sending method of the first information is limited so that the first device can successfully send the first information based on the sending method, ensuring the successful transmission of the first information between the first device and the second device, and ensuring the time and frequency synchronization between the first device and the second device.

[0062] In conjunction with some embodiments of the first aspect, in some embodiments, the first modulation mode includes at least one of the following:

[0063] On-off keying OOK-1 modulation;

[0064] OOK-4 modulation mode;

[0065] Pulse width encoding PIE modulation method;

[0066] Frequency modulation FM0 modulation mode;

[0067] Miller modulation method.

[0068] In combination with some embodiments of the first aspect, in some embodiments, when one or more first information are sent, the first modulation modes corresponding to different first information are the same or different.

[0069] In combination with some embodiments of the first aspect, in some embodiments, the first pattern is a fixed pattern.

[0070] In combination with some embodiments of the first aspect, in some embodiments, when one or more first information are sent, the first patterns corresponding to different first information are the same or different.

[0071] In conjunction with some embodiments of the first aspect, in some embodiments, the first modulation mode is an OOK-1 modulation mode, an OOK-4 modulation mode, an FMO modulation mode, or a Miller modulation mode; and the first pattern includes at least one of the following pattern features:

[0072] First pattern feature: all modulation symbols of the first information are ON symbols;

[0073] Second pattern feature: some modulation symbols of the first information are ON symbols, and another part of the modulation symbols are OFF symbols, and the number of the ON symbols corresponding to the first information is equal to the number of the OFF symbols corresponding to the first information;

[0074] Third pattern feature: some modulation symbols of the first information are ON symbols, and another part of the modulation symbols are OFF symbols, and the number of the ON symbols corresponding to the first information is different from the number of the OFF symbols corresponding to the first information;

[0075] Fourth pattern feature: all modulation symbols within at least a first duration of the first information are ON symbols, and the remaining modulation symbols are OFF symbols; the first duration is a subset of the total transmission duration of the first information.

[0076] In conjunction with some embodiments of the first aspect, in some embodiments, the first modulation mode is a PIE modulation mode; and the first pattern includes at least one of the following pattern features:

[0077] Fifth pattern feature: all modulation symbols of the first information are DATA0 symbols;

[0078] Sixth pattern feature: all modulation symbols of the first information are DATA1 symbols;

[0079] Seventh pattern feature: some modulation symbols of the first information are DATA0 symbols, and another part of the modulation symbols are DATA1 symbols, and the number of the DATA0 symbols corresponding to the first information is equal to the number of the DATA1 symbols corresponding to the first information;

[0080] Eighth pattern feature: some modulation symbols of the first information are DATA0 symbols, and another part of the modulation symbols are DATA1 symbols, and the number of the DATA0 symbols corresponding to the first information is different from the number of the DATA1 symbols corresponding to the first information;

[0081] Ninth pattern feature: all modulation symbols in at least a second duration of the first information are DATA0 symbols, and the remaining modulation symbols are DATA1 symbols; the second duration is less than the total transmission duration of the first information;

[0082] The tenth pattern feature: the modulation symbols in at least the second duration of the first information are all DATA1 symbols, and the remaining modulation symbols are DATA0 symbols; the second duration is less than the total transmission duration of the first information.

[0083] In conjunction with some embodiments of the first aspect, in some embodiments, the first pattern includes the following pattern features:

[0084] One time domain symbol of the first information includes K low levels of the third duration and L high levels of the fourth duration.

[0085] In combination with some embodiments of the first aspect, in some embodiments, the K, the third duration, L, and the fourth duration are all agreed upon by agreement; wherein, K is equal to or unequal to L, and the third duration is equal to or unequal to the fourth duration.

[0086] In conjunction with some embodiments of the first aspect, in some embodiments, determining the first pattern includes:

[0087] Determining a first sequence based on a protocol agreement, where the first sequence is used to indicate the first pattern;

[0088] The first pattern is determined based on the first sequence.

[0089] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0090] The first sequence is configured to at least one second device.

[0091] In conjunction with some embodiments of the first aspect, in some embodiments, the first pattern satisfies any of the following conditions:

[0092] At least first N time-domain symbols of the first information in the first pattern are ON symbols;

[0093] At least the first N time domain symbols of the first information under the first pattern are high-level symbols;

[0094] At least the first N time domain symbols of the first information under the first pattern are DATA1 symbols;

[0095] The N is predefined by the protocol and is an integer greater than 0.

[0096] In the above embodiment, the first modulation mode and / or the first pattern of the above-mentioned first information are specifically limited, and the modulation modes that the first modulation mode of the first information can be are clearly defined, and the patterns that the first pattern of the first information can be are defined, so that the first device and the second device can successfully realize the transmission of the first information based on the first modulation mode and / or the first pattern, ensuring the successful transmission of the first information between the first device and the second device, and ensuring the time and frequency synchronization between the first device and the second device.

[0097] In a second aspect, an embodiment of the present disclosure provides a communication method, which is performed by a second device, where the second device is a device that communicates based on collected energy. The method includes:

[0098] Determine a first modulation mode and / or a first pattern, where the first modulation mode is used to modulate first information, the first pattern is a pattern corresponding to the first information, and the first information is used for time-frequency synchronization between the first device and the second device;

[0099] The first information is received based on the first modulation mode and / or the first pattern.

[0100] In the above embodiment, the second device will determine the first modulation mode and / or the first pattern, and will receive the first information sent by the first device based on the first modulation mode and / or the first pattern. The first modulation mode is used to modulate the first information, the first pattern is the pattern corresponding to the first information, and the first information is used for time-frequency synchronization between the first device and the second device, and the second device is: a device that communicates based on collected energy, for example, an environmental Internet of Things device. It can be seen that in the method disclosed herein, the modulation mode and pattern of the time-frequency synchronization information (i.e., the first information) between the first device and the second device (i.e., the environmental Internet of Things device) will be determined, so that the second device can successfully receive the time-frequency synchronization information sent by the first device based on the determined modulation mode and / or pattern, thereby ensuring the successful transmission of the time-frequency synchronization information between the first device and the second device, and ensuring the time-frequency synchronization between the first device and the second device.

[0101] In conjunction with some embodiments of the second aspect, in some embodiments, determining the first modulation mode and / or the first pattern includes at least one of the following:

[0102] Determining the first modulation mode and / or the first pattern based on a protocol agreement;

[0103] Receive the first modulation mode and / or first pattern configured by the first device.

[0104] In conjunction with some embodiments of the second aspect, in some embodiments, the first information includes at least one of the following:

[0105] a first synchronization signal;

[0106] First preamble.

[0107] In combination with some embodiments of the second aspect, in some embodiments, the process of the first device sending the first information is performed independently or simultaneously with the first transmission process of the first device, and the first transmission process is: the process of the first device sending second information to the second device, and the second information is any information other than the first information.

[0108] In conjunction with some embodiments of the second aspect, in some embodiments, the first information is sent in at least one of the following ways:

[0109] Periodically sending the first information; wherein one or more first information are sent in one period;

[0110] The first information is sent once; wherein, one or more first information are sent once the first information is sent.

[0111] In conjunction with some embodiments of the second aspect, in some embodiments, the first modulation mode includes at least one of the following:

[0112] On-off keying OOK-1 modulation;

[0113] OOK-4 modulation mode;

[0114] Pulse width encoding PIE modulation method;

[0115] Frequency modulation FM0 modulation mode;

[0116] Miller modulation method.

[0117] In combination with some embodiments of the second aspect, in some embodiments, when one or more first information are sent, the first modulation modes corresponding to different first information are the same or different.

[0118] In combination with some embodiments of the second aspect, in some embodiments, the first pattern is a fixed pattern.

[0119] In combination with some embodiments of the second aspect, in some embodiments, when one or more first information are sent, the first patterns corresponding to different first information are the same or different.

[0120] In conjunction with some embodiments of the second aspect, in some embodiments, the first modulation mode is an OOK-1 modulation mode, an OOK-4 modulation mode, an FMO modulation mode, or a Miller modulation mode; and the first pattern includes at least one of the following pattern features:

[0121] First pattern feature: all modulation symbols of the first information are ON symbols;

[0122] Second pattern feature: some modulation symbols of the first information are ON symbols, and another part of the modulation symbols are OFF symbols, and the number of the ON symbols corresponding to the first information is equal to the number of the OFF symbols corresponding to the first information;

[0123] Third pattern feature: some modulation symbols of the first information are ON symbols, and another part of the modulation symbols are OFF symbols, and the number of the ON symbols corresponding to the first information is different from the number of the OFF symbols corresponding to the first information;

[0124] Fourth pattern feature: all modulation symbols within at least a first duration of the first information are ON symbols, and the remaining modulation symbols are OFF symbols; the first duration is a subset of the total transmission duration of the first information.

[0125] In conjunction with some embodiments of the second aspect, in some embodiments, the first modulation mode is a PIE modulation mode; and the first pattern includes at least one of the following pattern features:

[0126] Fifth pattern feature: all modulation symbols of the first information are DATA0 symbols;

[0127] Sixth pattern feature: all modulation symbols of the first information are DATA1 symbols;

[0128] Seventh pattern feature: some modulation symbols of the first information are DATA0 symbols, and another part of the modulation symbols are DATA1 symbols, and the number of the DATA0 symbols corresponding to the first information is equal to the number of the DATA1 symbols corresponding to the first information;

[0129] Eighth pattern feature: some modulation symbols of the first information are DATA0 symbols, and another part of the modulation symbols are DATA1 symbols, and the number of the DATA0 symbols corresponding to the first information is different from the number of the DATA1 symbols corresponding to the first information;

[0130] Ninth pattern feature: all modulation symbols in at least a second duration of the first information are DATA0 symbols, and the remaining modulation symbols are DATA1 symbols; the second duration is less than the total transmission duration of the first information;

[0131] The tenth pattern feature: the modulation symbols in at least the second duration of the first information are all DATA1 symbols, and the remaining modulation symbols are DATA0 symbols; the second duration is less than the total transmission duration of the first information.

[0132] In conjunction with some embodiments of the second aspect, in some embodiments, the first pattern includes the following pattern features:

[0133] One time domain symbol of the first information includes K low levels of the third duration and L high levels of the fourth duration.

[0134] In combination with some embodiments of the second aspect, in some embodiments, the K, the third duration, L, and the fourth duration are all agreed upon by agreement; wherein, K is equal to or unequal to L, and the third duration is equal to or unequal to the fourth duration.

[0135] In conjunction with some embodiments of the second aspect, in some embodiments, determining the first pattern includes:

[0136] Determine and / or receive a first sequence configured by a first device based on a protocol agreement, where the first sequence is used to indicate the first pattern;

[0137] The first pattern is determined based on the first sequence.

[0138] In conjunction with some embodiments of the second aspect, in some embodiments, the first pattern satisfies any one of the following conditions:

[0139] At least first N time-domain symbols of the first information in the first pattern are ON symbols;

[0140] At least the first N time domain symbols of the first information under the first pattern are high-level symbols;

[0141] At least the first N time domain symbols of the first information under the first pattern are DATA1 symbols;

[0142] The N is predefined by the protocol and is an integer greater than 0.

[0143] In conjunction with some embodiments of the second aspect, in some embodiments, receiving the first information based on the first modulation mode and / or the first pattern includes:

[0144] Determining a first demodulation mode corresponding to the first modulation mode;

[0145] The first information is received based on the first demodulation mode and / or the first pattern.

[0146] In a third aspect, an embodiment of the present disclosure provides a communication method for a communication system, wherein the communication system includes a first device and a second device; the second device is an environmental Internet of Things device, and the method includes:

[0147] The first device determines a first modulation mode and / or a first pattern, the first modulation mode is used to modulate first information, the first pattern is a pattern corresponding to the first information, the first information is used for time-frequency synchronization between the first device and a second device, the second device being: a device that communicates based on collected energy;

[0148] The first device sends the first information to at least one second device based on a first modulation mode and / or a first pattern;

[0149] The second device determines a first modulation mode and / or a first pattern;

[0150] The second device receives the first information based on a first modulation method and / or a first pattern.

[0151] In a fourth aspect, an embodiment of the present disclosure provides a first device, including:

[0152] a processing module, configured to determine a first modulation mode and / or a first pattern, wherein the first modulation mode is used to modulate first information, the first pattern is a pattern corresponding to the first information, the first information is used for time-frequency synchronization between the first device and a second device, and the second device is a device that communicates based on collected energy;

[0153] The transceiver module is configured to send the first information to at least one second device based on a first modulation mode and / or a first pattern.

[0154] In conjunction with some embodiments of the fourth aspect, in some embodiments, determining the first modulation mode and / or the first pattern includes:

[0155] The first modulation mode and / or first pattern is determined based on protocol agreement.

[0156] In conjunction with some embodiments of the fourth aspect, in some embodiments, the method further includes:

[0157] The first modulation mode and / or the first pattern are configured for at least one second device.

[0158] In conjunction with some embodiments of the fourth aspect, in some embodiments, the first information includes at least one of the following:

[0159] a first synchronization signal;

[0160] First preamble.

[0161] In combination with some embodiments of the fourth aspect, in some embodiments, the process of the first device sending the first information is performed independently or simultaneously with the first transmission process of the first device, and the first transmission process is: the process of the first device sending second information to the second device, and the second information is any information other than the first information.

[0162] In conjunction with some embodiments of the fourth aspect, in some embodiments, the manner of sending the first information includes at least one of the following:

[0163] Periodically sending the first information; wherein one or more first information are sent in one period;

[0164] The first information is sent once; wherein, one or more first information are sent once the first information is sent.

[0165] In conjunction with some embodiments of the fourth aspect, in some embodiments, the first modulation mode includes at least one of the following:

[0166] On-off keying OOK-1 modulation;

[0167] OOK-4 modulation mode;

[0168] Pulse width encoding PIE modulation method;

[0169] Frequency modulation FM0 modulation mode;

[0170] Miller modulation method.

[0171] In combination with some embodiments of the fourth aspect, in some embodiments, when one or more first information are sent, the first modulation modes corresponding to different first information are the same or different.

[0172] In combination with some embodiments of the fourth aspect, in some embodiments, the first pattern is a fixed pattern.

[0173] In combination with some embodiments of the fourth aspect, in some embodiments, when one or more first information are sent, the first patterns corresponding to different first information are the same or different.

[0174] In conjunction with some embodiments of the fourth aspect, in some embodiments, the first modulation mode is an OOK-1 modulation mode, an OOK-4 modulation mode, an FMO modulation mode, or a Miller modulation mode; and the first pattern includes at least one of the following pattern features:

[0175] First pattern feature: all modulation symbols of the first information are ON symbols;

[0176] Second pattern feature: some modulation symbols of the first information are ON symbols, and another part of the modulation symbols are OFF symbols, and the number of the ON symbols corresponding to the first information is equal to the number of the OFF symbols corresponding to the first information;

[0177] Third pattern feature: some modulation symbols of the first information are ON symbols, and another part of the modulation symbols are OFF symbols, and the number of the ON symbols corresponding to the first information is different from the number of the OFF symbols corresponding to the first information;

[0178] Fourth pattern feature: all modulation symbols within at least a first duration of the first information are ON symbols, and the remaining modulation symbols are OFF symbols; the first duration is a subset of the total transmission duration of the first information.

[0179] In conjunction with some embodiments of the fourth aspect, in some embodiments, the first modulation mode is a PIE modulation mode; and the first pattern includes at least one of the following pattern features:

[0180] Fifth pattern feature: all modulation symbols of the first information are DATA0 symbols;

[0181] Sixth pattern feature: all modulation symbols of the first information are DATA1 symbols;

[0182] Seventh pattern feature: some modulation symbols of the first information are DATA0 symbols, and another part of the modulation symbols are DATA1 symbols, and the number of the DATA0 symbols corresponding to the first information is equal to the number of the DATA1 symbols corresponding to the first information;

[0183] Eighth pattern feature: some modulation symbols of the first information are DATA0 symbols, and another part of the modulation symbols are DATA1 symbols, and the number of the DATA0 symbols corresponding to the first information is different from the number of the DATA1 symbols corresponding to the first information;

[0184] Ninth pattern feature: all modulation symbols in at least a second duration of the first information are DATA0 symbols, and the remaining modulation symbols are DATA1 symbols; the second duration is less than the total transmission duration of the first information;

[0185] The tenth pattern feature: the modulation symbols in at least the second duration of the first information are all DATA1 symbols, and the remaining modulation symbols are DATA0 symbols; the second duration is less than the total transmission duration of the first information.

[0186] In conjunction with some embodiments of the fourth aspect, in some embodiments, the first pattern includes the following pattern features:

[0187] One time domain symbol of the first information includes K low levels of the third duration and L high levels of the fourth duration.

[0188] In combination with some embodiments of the fourth aspect, in some embodiments, the K, the third duration, L, and the fourth duration are all agreed upon by agreement; wherein, K is equal to or unequal to L, and the third duration is equal to or unequal to the fourth duration.

[0189] In conjunction with some embodiments of the fourth aspect, in some embodiments, determining the first pattern includes:

[0190] Determining a first sequence based on a protocol agreement, where the first sequence is used to indicate the first pattern;

[0191] The first pattern is determined based on the first sequence.

[0192] In conjunction with some embodiments of the fourth aspect, in some embodiments, the first device is further configured to:

[0193] The first sequence is configured to at least one second device.

[0194] In conjunction with some embodiments of the fourth aspect, in some embodiments, the first pattern satisfies any one of the following conditions:

[0195] At least first N time-domain symbols of the first information in the first pattern are ON symbols;

[0196] At least the first N time domain symbols of the first information under the first pattern are high-level symbols;

[0197] At least the first N time domain symbols of the first information under the first pattern are DATA1 symbols;

[0198] The N is predefined by the protocol and is an integer greater than 0.

[0199] In a fifth aspect, an embodiment of the present disclosure provides a second device, including:

[0200] a processing module, configured to determine a first modulation mode and / or a first pattern, where the first modulation mode is used to modulate first information, the first pattern is a pattern corresponding to the first information, and the first information is used for time-frequency synchronization between the first device and the second device;

[0201] A transceiver module is configured to receive the first information based on the first modulation mode and / or the first pattern.

[0202] In conjunction with some embodiments of the fifth aspect, in some embodiments, determining the first modulation mode and / or the first pattern includes at least one of the following:

[0203] Determining the first modulation mode and / or the first pattern based on a protocol agreement;

[0204] Receive the first modulation mode and / or first pattern configured by the first device.

[0205] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first information includes at least one of the following:

[0206] a first synchronization signal;

[0207] First preamble.

[0208] In combination with some embodiments of the fifth aspect, in some embodiments, the process of the first device sending the first information is performed independently or simultaneously with the first transmission process of the first device, and the first transmission process is: the process of the first device sending second information to the second device, and the second information is any information other than the first information.

[0209] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first information is sent in at least one of the following ways:

[0210] Periodically sending the first information; wherein one or more first information are sent in one period;

[0211] The first information is sent once; wherein, one or more first information are sent once the first information is sent.

[0212] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first modulation mode includes at least one of the following:

[0213] On-off keying OOK-1 modulation;

[0214] OOK-4 modulation mode;

[0215] Pulse width encoding PIE modulation method;

[0216] Frequency modulation FM0 modulation mode;

[0217] Miller modulation method.

[0218] In combination with some embodiments of the fifth aspect, in some embodiments, when one or more first information are sent, the first modulation modes corresponding to different first information are the same or different.

[0219] In combination with some embodiments of the fifth aspect, in some embodiments, the first pattern is a fixed pattern.

[0220] In combination with some embodiments of the fifth aspect, in some embodiments, when one or more first information are sent, the first patterns corresponding to different first information are the same or different.

[0221] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first modulation mode is an OOK-1 modulation mode, an OOK-4 modulation mode, an FMO modulation mode, or a Miller modulation mode; and the first pattern includes at least one of the following pattern features:

[0222] First pattern feature: all modulation symbols of the first information are ON symbols;

[0223] Second pattern feature: some modulation symbols of the first information are ON symbols, and another part of the modulation symbols are OFF symbols, and the number of the ON symbols corresponding to the first information is equal to the number of the OFF symbols corresponding to the first information;

[0224] Third pattern feature: some modulation symbols of the first information are ON symbols, and another part of the modulation symbols are OFF symbols, and the number of the ON symbols corresponding to the first information is different from the number of the OFF symbols corresponding to the first information;

[0225] Fourth pattern feature: all modulation symbols within at least a first duration of the first information are ON symbols, and the remaining modulation symbols are OFF symbols; the first duration is a subset of the total transmission duration of the first information.

[0226] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first modulation mode is a PIE modulation mode; and the first pattern includes at least one of the following pattern features:

[0227] Fifth pattern feature: all modulation symbols of the first information are DATA0 symbols;

[0228] Sixth pattern feature: all modulation symbols of the first information are DATA1 symbols;

[0229] Seventh pattern feature: some modulation symbols of the first information are DATA0 symbols, and another part of the modulation symbols are DATA1 symbols, and the number of the DATA0 symbols corresponding to the first information is equal to the number of the DATA1 symbols corresponding to the first information;

[0230] Eighth pattern feature: some modulation symbols of the first information are DATA0 symbols, and another part of the modulation symbols are DATA1 symbols, and the number of the DATA0 symbols corresponding to the first information is different from the number of the DATA1 symbols corresponding to the first information;

[0231] Ninth pattern feature: all modulation symbols in at least a second duration of the first information are DATA0 symbols, and the remaining modulation symbols are DATA1 symbols; the second duration is less than the total transmission duration of the first information;

[0232] The tenth pattern feature: the modulation symbols in at least the second duration of the first information are all DATA1 symbols, and the remaining modulation symbols are DATA0 symbols; the second duration is less than the total transmission duration of the first information.

[0233] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first pattern includes the following pattern features:

[0234] One time domain symbol of the first information includes K low levels of the third duration and L high levels of the fourth duration.

[0235] In combination with some embodiments of the fifth aspect, in some embodiments, the K, the third duration, L, and the fourth duration are all agreed upon by agreement; wherein, K is equal to or unequal to L, and the third duration is equal to or unequal to the fourth duration.

[0236] With reference to some embodiments of the fifth aspect, in some embodiments, determining the first pattern includes:

[0237] Determine and / or receive a first sequence configured by a first device based on a protocol agreement, where the first sequence is used to indicate the first pattern;

[0238] The first pattern is determined based on the first sequence.

[0239] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first pattern satisfies any of the following conditions:

[0240] At least first N time-domain symbols of the first information in the first pattern are ON symbols;

[0241] At least the first N time domain symbols of the first information under the first pattern are high-level symbols;

[0242] At least the first N time domain symbols of the first information under the first pattern are DATA1 symbols;

[0243] The N is predefined by the protocol and is an integer greater than 0.

[0244] With reference to some embodiments of the fifth aspect, in some embodiments, receiving the first information based on the first modulation mode and / or the first pattern includes:

[0245] Determining a first demodulation mode corresponding to the first modulation mode;

[0246] The first information is received based on the first demodulation mode and / or the first pattern.

[0247] In a sixth aspect, an embodiment of the present disclosure proposes a communication device, which includes: one or more processors; one or more memories for storing instructions; wherein the processor is used to call the instructions so that the communication device executes the communication method described in the first aspect, the optional implementation of the first aspect, the second aspect, and the optional implementation of the second aspect.

[0248] In the seventh aspect, an embodiment of the present disclosure proposes a communication system, which includes: a first device and a second device; wherein the first device is configured to execute the method described in the first aspect and the optional implementation of the first aspect, and the second device is configured to execute the method described in the second aspect and the optional implementation of the second aspect.

[0249] In an eighth aspect, an embodiment of the present disclosure proposes a storage medium, which stores instructions. When the instructions are executed on a communication device, the communication device executes the communication method described in the first aspect, the optional implementation of the first aspect, the second aspect, and the optional implementation of the second aspect.

[0250] In the ninth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the communication method described in the first aspect, the optional implementation of the first aspect, the second aspect, and the optional implementation of the second aspect.

[0251] In a tenth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the communication method described in the first aspect, the optional implementation of the first aspect, the second aspect, and the optional implementation of the second aspect.

[0252] It is understandable that the first device, network device, communication device, communication system, storage medium, program product, and computer program are all used to execute the method proposed in the embodiment of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding method and will not be repeated here.

[0253] The present disclosure provides invention titles. In some embodiments, the terms "communication method" and "information processing method," "information sending method," and "information receiving method" are interchangeable; the terms "communication device" and "information processing device," "information sending device," and "information receiving device" are interchangeable; and the terms "information processing system," "communication system," "information sending system," and "information receiving system" are interchangeable.

[0254] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain 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 certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0255] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0256] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0257] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0258] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0259] In some embodiments, the terms "at least one of", "at least one of", "at least one of", "one or more", "a plurality of", "multiple", etc. can be used interchangeably.

[0260] In the embodiments of the present disclosure, descriptions such as “at least one of A, B, C…”, “A and / or B and / or C…”, etc. include the situation where any one of A, B, C… exists alone, and also include any combination of any multiple of A, B, C…, and each situation can exist alone; for example, “at least one of A, B, C” includes the situation where A exists alone, B exists alone, C exists alone, the combination of A and B, the combination of A and C, the combination of B and C, and the combination of A, B, and C; for example, A and / or B includes the situation where A exists alone, B exists alone, and the combination of A and B.

[0261] In some embodiments, descriptions such as "in one case A, in another case B," or "in response to one case A, in response to another case B," may include the following technical solutions depending on the situation: executing A independently of B (in some embodiments, A); executing B independently of A (in some embodiments, B); selectively executing A and B (in some embodiments, selecting between A and B); and executing both A and B (in some embodiments, A and B). The same applies when there are more branches, such as A, B, and C.

[0262] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0263] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0264] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0265] In some embodiments, terms such as "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 less than", and "above" can be replaced with each other, and terms such as "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" can be replaced with each other.

[0266] In some embodiments, devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.

[0267] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0268] In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station" "fixed station", "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", "cell group", "carrier", "component carrier", "bandwidth part (BWP)" and the like may be used interchangeably.

[0269] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "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. can be used interchangeably.

[0270] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, it can also be called device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it can also be set as a structure in which the terminal has all or part of the functions of the access network device. In addition, language such as "uplink" and "downlink" can also be replaced by language corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

[0271] 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, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

[0272] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0273] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0274] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0275] The correspondences shown in the tables in the present disclosure can be configured or predefined. The values ​​of the information in each table are only examples and can be configured to other values, which are not limited by the present disclosure. When configuring the correspondence between information and various parameters, it is not necessarily required to configure all the correspondences shown in each table. For example, in the tables in the present disclosure, the correspondences shown in certain rows may not be configured. For another example, appropriate deformation adjustments can be made based on the above tables, such as splitting, merging, etc. The names of the parameters shown in the titles of the above tables may also use other names that can be understood by the communication device, and the values ​​or representations of the parameters may also use other values ​​or representations that can be understood by the communication device. When implementing the above tables, other data structures may also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables, etc.

[0276] The predefined in the present disclosure may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

[0277] Figure 1A is a schematic diagram illustrating the architecture of a communication system according to an embodiment of the present disclosure. As shown in Figure 1A, communication system 100 may include a first device and a second device; the second device may be an ambient IoT device, the first device may be a device that communicates with the second device, and the first device may be a network device or a terminal. Optionally, the network device may include at least one of an access network device and a core network device.

[0278] In some embodiments, the terminal includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0279] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a wireless fidelity (WiFi) system, but is not limited thereto.

[0280] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0281] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0282] In some embodiments, the core network device may be a device including one or more network elements, or may be multiple devices or a group of devices, each including all or part of one or more network elements. The network element may be virtual or physical. The core network, for example, includes at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC). Alternatively, the core network device may also be a location management function network element. Exemplarily, the location management function network element includes a location server (location server), which may be implemented as any one of the following: Location Management Function (LMF), Enhanced Serving Mobile Location Centre (E-SMLC), Secure User Plane Location (SUPL), and Secure User Plane Location Platform (SUPLLP).

[0283] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0284] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1A , or a portion thereof, but are not limited thereto. The entities shown in FIG1A are illustrative only. The communication system may include all or part of the entities shown in FIG1A , or may include other entities other than those shown in FIG1A . The number and form of the entities may be arbitrary. The connection relationship between the entities is illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0285] The embodiments of the present disclosure 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), 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 (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (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 utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0286] Optionally, the aforementioned A-IoT device may also be referred to as, for example, an A-IoT UE, an A-IoT terminal, an A-IoT Tag, etc., and the A-IoT device may collect energy from the outside world to supply normal uplink and downlink transmission. For example, the A-IoT device may collect ambient energy and / or artificial energy to supply normal uplink and downlink transmission. Optionally, the ambient energy may include, for example, natural energy such as solar energy, wind energy, and nuclear energy, and the artificial energy may include, for example, energy such as electromagnetic waves transmitted by artificial devices.

[0287] Optionally, in some embodiments, the A-IoT device may send signaling and / or data based on backscatter. Among them, for A-IoT devices based on backscatter, there is usually a need for an energy source (continuous wave node, CW node) that provides continuous electromagnetic waves (continuous wave, CW) to provide the A-IoT device with CW for reflection. In addition, the A-IoT device can receive the CW sent by the energy source, and the CW can be used to charge the A-IoT device to activate the internal receiving and processing module to start working, so that the A-IoT device can encode and modulate the signaling and / or data to be sent, and load the signaling and / or data to be sent onto the reflected wave and send it out, thereby realizing backscatter communication.

[0288] Optionally, the energy source may be a separate node, or a base station communicating with the A-IoT device, or an intermediate node (such as a terminal) communicating with the A-IoT device. Optionally, the frequency of the electromagnetic waves emitted by the energy source may be a constant amplitude, and the transmission frequency used by the A-IoT device when reflecting the electromagnetic waves may be the same as the frequency of the electromagnetic waves emitted by the energy source, or the transmission frequency used by the A-IoT device when reflecting the electromagnetic waves may be offset from the frequency of the electromagnetic waves emitted by the energy source, wherein the magnitude of the offset value is related to the hardware characteristics of the A-IoT device. Optionally, the offset value may be a fixed value, or the offset value may be dynamically adjusted.

[0289] Optionally, the A-IoT device may also send signaling and / or data in an active manner. Optionally, the "active transmission" may be understood as, for example, actively generating and sending signals without the need for CW signal excitation. The A-IoT device may actively generate and send signals based on its stored energy, and the energy stored in the A-IoT device may be energy that has been pre-charged for the A-IoT device.

[0290] Optionally, there are multiple different types of the above-mentioned A-IoT devices, and different types of A-IoT devices correspond to different capabilities.

[0291] Optionally, the device types of A-IoT devices may include, for example, Type 1, Type 2a, Type 2b, and Type 2c. Type 1 and Type 2a A-IoT devices are passive devices, while Type 2b A-IoT devices are active devices. Optionally, Type 1 A-IoT devices operate based on backscattering, exhibiting the lowest complexity and consuming very little power. Type 2a A-IoT devices support energy storage and operate based on backscattering, exhibiting higher complexity and power consumption than Type 1 A-IoT devices. Furthermore, Type 2a A-IoT devices have some signal amplification capabilities, but the level of amplification is relatively low. Type 2a A-IoT devices can store energy, but this capacity is generally limited. Type 2b A-IoT devices operate based on active transmission, amplifying signals and actively transmitting information. Specifically, Type 2b A-IoT devices utilize power amplifiers for both amplification and transmission. Type 2c A-IoT devices have both active transmission and backscattering capabilities.

[0292] Optionally, the above-mentioned A-IoT device can be applied to a variety of different communication architectures in the communication system, wherein Figures 1B to 1F are schematic diagrams of the architecture of the A-IoT device during communication according to an embodiment of the present disclosure.

[0293] Optionally, as shown in FIG1B , data can be directly received and sent between an A-IoT device (ie, the Ambient IoT device in FIG1B ) and a network device (eg, a base station (BS)).

[0294] Optionally, as shown in FIG1C , data can be received and sent indirectly between the A-IoT device and the network device (such as a base station (BS)) through an intermediate node, where the intermediate node can be, for example, a relay, an integrated access backhaul (IAB) device, a terminal, or a repeater.

[0295] Optionally, as shown in FIG1D , uplink data can be directly transmitted between the A-IoT device and the network device (such as a base station (BS)), and downlink data can be indirectly transmitted between the A-IoT device and the network device (such as a base station (BS)) through an assisting node, which can be, for example, a relay, an IAB device, a terminal, or a repeater.

[0296] Optionally, as shown in FIG1E , downlink data can be directly transmitted between the A-IoT device and the network device (such as a base station (BS)), and uplink data can be indirectly transmitted between the A-IoT device and the network device (such as a base station (BS)) through an assisting node.

[0297] Optionally, as shown in FIG1F , data can be directly received and sent between the A-IoT device and the terminal (or user equipment (UE)). The terminal can be responsible for collecting data from the A-IoT device and forwarding the collected data to the network device.

[0298] Optionally, the "network device, terminal, UE, intermediate node, and auxiliary node" in the communication architecture shown in Figures 1B-1F above can be referred to as the first device. Furthermore, in the communication architecture shown in Figures 1B-1F above, when an A-IoT device communicates with the first device, it is generally necessary to ensure time and frequency synchronization between the first device and the A-IoT device. Optionally, there are currently three potential solutions for achieving time and frequency synchronization between the first device and the A-IoT device:

[0299] The first method is: When the first device sends a command to the A-IoT device, it attaches a "preamble" to the command. The preamble can carry time-frequency synchronization information. The A-IoT device can achieve time-frequency synchronization with the first device based on the time-frequency synchronization information carried in the preamble. In some embodiments, the preamble used to achieve time-frequency synchronization between the first device and the A-IoT device can be called, for example, A-preamble, or it can have other names, which are not limited by this disclosure.

[0300] The second method is to introduce an A-IoT synchronization signal between the first device and the A-IoT device. The A-IoT synchronization signal can be sent periodically or with the service. The A-IoT synchronization signal (SS) can carry time-frequency synchronization information. The A-IoT device can achieve time-frequency synchronization with the first device based on the time-frequency synchronization information carried in the A-IoT synchronization signal. In some embodiments, the A-IoT synchronization signal can be called, for example, A-SS, or it can have other names, which are not limited in this disclosure.

[0301] The third type: The first device sends an A-preamble and an A-SS to the A-IoT device. The A-IoT device combines the A-preamble and the A-SS to achieve time and frequency synchronization with the first device.

[0302] However, there is currently no clear method for designing the A-SS and A-preamble (eg, how to design the modulation method and pattern of the A-SS and A-preamble).

[0303] Based on this, the present disclosure provides a communication method for solving the above problems.

[0304] FIG2A is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG2A , the embodiment of the present disclosure relates to a communication method for use in a communication system 100, the method comprising:

[0305] Step 2101: The first device determines a first modulation mode and / or a first pattern.

[0306] Optionally, the first device may be a device that communicates with a second device, and the second device may be a device that communicates based on collected energy. For example, the second device may be an environmental IoT device. In some embodiments, the second device may be the A-IoT device described in the previous embodiment of FIG. 2A. In some embodiments, the second device may also be called a low-power device, a low-power environmental IoT device, an A-IoT device, an A-IoT UE, an A-IoT terminal, an A-IoT Tag, etc., or may have other names, which are not specifically limited in this disclosure. In addition, the relevant introduction to the A-IoT device has been described in detail in the previous embodiment of FIG. 2A and will not be repeated here.

[0307] Optionally, in some embodiments, the first device may be at least one of the network device, terminal, UE, intermediate node, and auxiliary node shown in Figures 1B-1F. Optionally, in some embodiments, the first device may be referred to as an A-IoT network device or other name, which is not specifically limited in this disclosure.

[0308] Optionally, the first modulation mode may be a modulation mode for modulating the first information, and the first pattern may be a pattern corresponding to the first information, for example, the first pattern may be a time domain pattern corresponding to the first information. The first information may be used for time-frequency synchronization between the first device and the second device. For example, the first information may carry time-frequency synchronization information, and after receiving the first information, the second device may achieve time-frequency synchronization with the first device based on the time-frequency synchronization information carried in the first information.

[0309] Optionally, in some embodiments, the first information may include a first synchronization signal and / or a first preamble. In some embodiments, the first synchronization signal may be, for example, the "A-SS" described previously in the embodiment of FIG. 2A , and the first preamble may be, for example, the "A-preamble" described previously in the embodiment of FIG. 2A . The details of this part have been described in detail in the description previously in the embodiment of FIG. 2A and are not repeated here.

[0310] Optionally, in some embodiments, the above-mentioned first modulation mode and / or first pattern may be determined by the first device based on a protocol agreement, or may be configured by other devices such as a server, or, when the first device is not a network device (such as: when the first device is the above-mentioned terminal or UE or intermediate node or auxiliary node), the first modulation mode and / or first pattern may be configured by the network device to the first device, or there may be other determination methods, which are not specifically limited in this disclosure.

[0311] Furthermore, in some embodiments, the first modulation method may include at least one of the following:

[0312] On-Off Keying (OOK)-1 modulation method;

[0313] OOK-4 modulation mode;

[0314] Pulse interval encoding (PIE) modulation;

[0315] Frequency Modulation (FM) 0 modulation mode;

[0316] Miller modulation method.

[0317] In some other embodiments, the first pattern may be a fixed pattern.

[0318] Optionally, when the first modulation mode corresponding to the first information is different, the first pattern corresponding to the first information will also be different. The first modulation mode and the first pattern are introduced in detail below.

[0319] In some embodiments, when the first modulation mode is OOK-1 modulation mode, OOK-4 modulation mode, FMO modulation mode, or Miller modulation mode, the first pattern may include at least one of the following pattern features:

[0320] First pattern feature: all modulation symbols of the first information are ON symbols;

[0321] Second pattern feature: some modulation symbols of the first information are ON symbols, and another part of the modulation symbols are OFF symbols, and the number of ON symbols corresponding to the first information is equal to the number of OFF symbols corresponding to the first information;

[0322] The third pattern feature: some modulation symbols of the first information are ON symbols, and other modulation symbols are OFF symbols, and the number of ON symbols corresponding to the first information is different from the number of OFF symbols corresponding to the first information;

[0323] Fourth pattern feature: all modulation symbols within at least the first duration of the first information are ON symbols, and the remaining modulation symbols are OFF symbols; the first duration is a subset of the total transmission duration of the first information. For example, the total transmission of the first information can be called: A-SS duration, A-preamble duration, etc., and the first duration can be called: sub-duration; and the first duration can be predefined by the protocol.

[0324] In some other embodiments, when the first modulation mode is a PIE modulation mode, the first pattern may include at least one of the following pattern features:

[0325] Fifth pattern feature: all modulation symbols of the first information are DATA0 symbols;

[0326] Sixth pattern feature: all modulation symbols of the first information are DATA1 symbols;

[0327] Seventh pattern feature: some modulation symbols of the first information are DATA0 symbols, and another part of the modulation symbols are DATA1 symbols, and the number of DATA0 symbols corresponding to the first information is equal to the number of DATA1 symbols corresponding to the first information;

[0328] Eighth pattern feature: some modulation symbols of the first information are DATA0 symbols, and another part of the modulation symbols are DATA1 symbols, and the number of DATA0 symbols corresponding to the first information is different from the number of DATA1 symbols corresponding to the first information;

[0329] Ninth pattern feature: All modulation symbols within at least the second duration of the first information are DATA0 symbols, and the remaining modulation symbols are DATA1 symbols; the second duration is less than the total transmission duration of the first information; for example, the total transmission duration of the first information can be called: A-SS duration, A-preamble duration, etc., and the second duration can be called: sub-duration; and the second duration can be predefined by the protocol

[0330] The tenth pattern feature: the modulation symbols in at least the second duration of the first information are all DATA1 symbols, and the remaining modulation symbols are DATA0 symbols; the second duration is less than the total transmission duration of the first information.

[0331] Optionally, in some further embodiments, the first pattern may further include the following pattern features:

[0332] One time domain symbol of the first information contains K low levels of the third duration and L high levels of the fourth duration.

[0333] The aforementioned K, the third duration (or sub-duration), L, and the fourth duration (or sub-duration) can all be agreed upon by agreement; and K and L can be equal or unequal, and the third duration and the fourth duration can be equal or unequal. For example, K and L can be equal, and the third duration and the fourth duration can be equal; or, K and L can be unequal, and the third duration and the fourth duration can be equal; or, K and L can be equal, and the third duration and the fourth duration can be unequal; or, K and L can be unequal, and the third duration and the fourth duration can be unequal.

[0334] For example, Figure 2B is an interactive schematic diagram of the first pattern shown according to an embodiment of the present disclosure. As shown in Figure 2B, K=2, L=3, and there are 2 low levels of the third duration and 3 high levels of the fourth duration in a time domain symbol of the first information.

[0335] Optionally, in some other embodiments, the above-mentioned first pattern can also be determined based on a first sequence. Optionally, the first sequence and the sequence length of the first sequence can be agreed upon by a protocol. The first sequence can be used to indicate the first pattern. The first sequence can be, for example, a binary sequence, wherein the first value can represent a high level or an ON symbol or a DATA1 symbol, and the second value can represent a low level or an OFF symbol or a DATA0 symbol. The first value can be, for example, 1, and the second value can be, for example, 0; or, the first value can be, for example, 0, and the second value can be, for example, 1. For example, assuming that the first sequence is: 1010, the first pattern indicated by the first sequence can be, for example: "ON symbol, OFF symbol, ON symbol, OFF symbol", or "high level symbol, low level symbol, high level symbol, low level symbol", or "DATA1 symbol, DATA0 symbol, DATA1 symbol, DATA0 symbol".

[0336] Optionally, in some embodiments, the first pattern determined based on the aforementioned method may satisfy any of the following conditions:

[0337] At least the first N time-domain symbols of the first information in the first pattern are ON symbols;

[0338] At least the first N time domain symbols of the first information under the first pattern are high-level symbols;

[0339] At least the first N time-domain symbols of the first information in the first pattern are DATA1 symbols.

[0340] Optionally, the above N may be predefined by a protocol, and N is an integer greater than 0.

[0341] Step 2102: The first device configures a first modulation mode and / or a first pattern to at least one second device.

[0342] Optionally, in some embodiments, the first device may directly configure the determined first modulation mode and / or first pattern to the second device.

[0343] Alternatively, in other embodiments, when the first device determines the first pattern based on the first sequence, when configuring the first pattern for the second device, the first device may configure the first sequence to the second device. In this case, because the first sequence uses a sequence value to represent the first pattern, the first sequence value occupies fewer resources than the first pattern. Therefore, fewer resources are required to configure the first sequence, thereby saving resource overhead and reducing communication costs.

[0344] Step 2103: The second device determines a first modulation mode and / or a first pattern.

[0345] Optionally, the second device may determine the first modulation mode and / or the first pattern based on a protocol agreement. Alternatively, the second device may receive the first modulation mode and / or the first pattern configured by the first device.

[0346] For a detailed introduction to the first modulation mode and / or the first pattern, please refer to the above step description.

[0347] Step 2104: The first device sends first information to at least one second device based on the first modulation mode and / or the first pattern.

[0348] For a detailed introduction to the first device, the first modulation mode, the first pattern, the second device, and the first information, please refer to the above step descriptions.

[0349] Furthermore, in some embodiments, when the first device sends the first information, it may be periodically sending the first information to at least one second device, wherein one or more first information may be sent within one period, the first modulation modes corresponding to different first information may be the same or different, and the first patterns corresponding to different first information may be the same or different fixed patterns.

[0350] Optionally, in other embodiments, when the first device sends the first information, it may be a single sending of the first information (or called: sending the first information once), that is, the number of times the first information is sent is once, and one or more first information may be sent when the first information is sent once. Optionally, when the first device sends multiple first information at a time, the first modulation modes corresponding to different first information may be the same or different, and the first patterns corresponding to different first information may be the same or different fixed patterns.

[0351] Furthermore, in some embodiments, the process of a first device sending first information to at least one second device may be performed independently of or simultaneously with the first transmission process of the first device. Optionally, the first transmission process may be a process of the first device sending second information to the second device, wherein the second information may be any information other than the first information. For example, the second information may include at least one of the following:

[0352] A first signal, the first signal being used to stimulate the second device to perform reflective scattering; the first signal may be, for example, the CW signal described above in the embodiment of FIG. 2A ;

[0353] a second signal, the second signal being used to charge the second device; that is, the second signal may be a charging signal of the second device, for example, the second signal may be an energy source (ES) signal;

[0354] Downlink control signaling;

[0355] Downlink data signaling;

[0356] Downlink control data signaling.

[0357] And, in some embodiments, when the first information is the aforementioned first synchronization signal, the process of the first device sending the first information to at least one second device can be performed independently of the first transmission process of the first device. In this case, the first information can be sent by the first device (for example, a single transmission or a periodic transmission) to the second device before the first device schedules a service to the second device, so that before the first device schedules a service to the second device, the second device can achieve time and frequency synchronization with the first device based on the first information to ensure the accuracy of the subsequently executed service; or, the first information can be sent by the first device (for example, a single transmission or a periodic transmission) to the second device after the first device schedules a service to the second device and before triggering the service, so that before the first device triggers the service to the second device, the second device can achieve time and frequency synchronization with the first device based on the first information to ensure the accuracy of the subsequently executed service. It should be noted that the sending time of the above-mentioned first information is only an example description, and the first information may also have other sending times, which is not specifically limited in this disclosure.

[0358] Optionally, when the first information is the aforementioned first preamble code, the process of the first device sending the first information to at least one second device can be carried out simultaneously with the first transmission process of the first device. At this time, the first preamble code can be attached to the second information to be transmitted by the first transmission process. Optionally, the first preamble code can be sent periodically or can be sent once.

[0359] Optionally, in some embodiments, when the first device sends the first information based on the first modulation method and / or the first pattern, it may modulate the first information using the first modulation method, and may perform resource mapping on the first information based on the first pattern to send the first information to the second device.

[0360] Optionally, in some embodiments, the second device can receive the first information based on the first modulation method and / or the first pattern. For example, the first device can receive the first information on the corresponding resource based on the first pattern, and can determine the corresponding first demodulation method based on the first modulation method, and then demodulate the received first information based on the first demodulation method, so as to achieve successful reception of the first information.

[0361] In the above embodiment, the first device will determine the first modulation mode and / or the first pattern, and will send the first information to at least one second device based on the first modulation mode and / or the first pattern. The first modulation mode is used to modulate the first information, the first pattern is the pattern corresponding to the first information, and the first information is used for the first device and the second device to perform time-frequency synchronization, and the second device is: a device that communicates based on the collected energy, for example, an environmental Internet of Things device. It can be seen that in the method disclosed herein, the modulation mode and pattern of the time-frequency synchronization information (i.e., the first information) between the first device and the second device (i.e., the environmental Internet of Things device) will be determined, so that the first device can successfully send the time-frequency synchronization information to the second device based on the determined modulation mode and / or pattern, thereby ensuring the successful transmission of the time-frequency synchronization information between the first device and the second device, and ensuring the time-frequency synchronization between the first device and the second device.

[0362] The communication method involved in the embodiments of the present disclosure may include at least one of steps 2101 to 2104. For example, step 2101 may be implemented as an independent embodiment, step 2102 may be implemented as an independent embodiment, and steps 2101+2102 may be implemented as independent embodiments, but are not limited thereto.

[0363] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0364] FIG3A is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG3A , the embodiment of the present disclosure relates to a communication method for a first device, the method comprising:

[0365] Step 3101: Determine a first modulation mode and / or a first pattern.

[0366] Step 3102: Configure a first modulation mode and / or a first pattern for at least one second device.

[0367] Step 3103: Send first information based on the first modulation mode and / or the first pattern.

[0368] For a detailed description of steps 3101-3103, please refer to the above embodiment description.

[0369] The communication method involved in the embodiments of the present disclosure may include at least one of steps 3101 to 3103. For example, step 3101 may be implemented as an independent embodiment, step 3102 may be implemented as an independent embodiment, and steps 3101+3102 may be implemented as independent embodiments, but are not limited thereto.

[0370] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0371] FIG3B is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG3B , the embodiment of the present disclosure relates to a communication method for a first device, the method comprising:

[0372] Step 3201: Determine a first modulation mode and / or a first pattern.

[0373] Step 3202: Send first information to at least one second device based on the first modulation mode and / or the first pattern.

[0374] Optionally, the first modulation method is used to modulate the first information, the first pattern is a pattern corresponding to the first information, the first information is used for time and frequency synchronization between the first device and the second device, and the second device is: a device that communicates based on collected energy.

[0375] Optionally, determining the first modulation mode and / or the first pattern includes:

[0376] The first modulation mode and / or first pattern is determined based on protocol agreement.

[0377] Optionally, the method further includes:

[0378] The first modulation mode and / or the first pattern are configured for at least one second device.

[0379] Optionally, the first information includes at least one of the following:

[0380] a first synchronization signal;

[0381] First preamble.

[0382] Optionally, the process of the first device sending the first information is performed independently or simultaneously with the first transmission process of the first device, and the first transmission process is: the process of the first device sending second information to the second device, and the second information is any information other than the first information.

[0383] Optionally, the first information is sent in at least one of the following ways:

[0384] Periodically sending the first information; wherein one or more first information are sent in one period;

[0385] The first information is sent once; wherein, one or more first information are sent once the first information is sent.

[0386] Optionally, the first modulation mode includes at least one of the following:

[0387] On-off keying OOK-1 modulation;

[0388] OOK-4 modulation mode;

[0389] Pulse width encoding PIE modulation method;

[0390] Frequency modulation FM0 modulation mode;

[0391] Miller modulation method.

[0392] Optionally, when sending one or more first information, the first modulation modes corresponding to different first information are the same or different.

[0393] Optionally, the first pattern is a fixed pattern.

[0394] Optionally, when one or more first information are sent, the first patterns corresponding to different first information are the same or different.

[0395] Optionally, the first modulation mode is OOK-1 modulation mode, OOK-4 modulation mode, FMO modulation mode, or Miller modulation mode; and the first pattern includes at least one of the following pattern features:

[0396] First pattern feature: all modulation symbols of the first information are ON symbols;

[0397] Second pattern feature: some modulation symbols of the first information are ON symbols, and another part of the modulation symbols are OFF symbols, and the number of the ON symbols corresponding to the first information is equal to the number of the OFF symbols corresponding to the first information;

[0398] Third pattern feature: some modulation symbols of the first information are ON symbols, and another part of the modulation symbols are OFF symbols, and the number of the ON symbols corresponding to the first information is different from the number of the OFF symbols corresponding to the first information;

[0399] Fourth pattern feature: all modulation symbols within at least a first duration of the first information are ON symbols, and the remaining modulation symbols are OFF symbols; the first duration is a subset of the total transmission duration of the first information.

[0400] Optionally, the first modulation mode is a PIE modulation mode; and the first pattern includes at least one of the following pattern features:

[0401] Fifth pattern feature: all modulation symbols of the first information are DATA0 symbols;

[0402] Sixth pattern feature: all modulation symbols of the first information are DATA1 symbols;

[0403] Seventh pattern feature: some modulation symbols of the first information are DATA0 symbols, and another part of the modulation symbols are DATA1 symbols, and the number of the DATA0 symbols corresponding to the first information is equal to the number of the DATA1 symbols corresponding to the first information;

[0404] Eighth pattern feature: some modulation symbols of the first information are DATA0 symbols, and another part of the modulation symbols are DATA1 symbols, and the number of the DATA0 symbols corresponding to the first information is different from the number of the DATA1 symbols corresponding to the first information;

[0405] Ninth pattern feature: all modulation symbols in at least a second duration of the first information are DATA0 symbols, and the remaining modulation symbols are DATA1 symbols; the second duration is less than the total transmission duration of the first information;

[0406] The tenth pattern feature: the modulation symbols in at least the second duration of the first information are all DATA1 symbols, and the remaining modulation symbols are DATA0 symbols; the second duration is less than the total transmission duration of the first information.

[0407] Optionally, the first pattern includes the following pattern features:

[0408] One time domain symbol of the first information includes K low levels of the third duration and L high levels of the fourth duration.

[0409] Optionally, the K, the third duration, L, and the fourth duration are all agreed upon by agreement; wherein, K is equal to or unequal to L, and the third duration is equal to or unequal to the fourth duration.

[0410] Optionally, determining the first pattern includes:

[0411] Determining a first sequence based on a protocol agreement, where the first sequence is used to indicate the first pattern;

[0412] The first pattern is determined based on the first sequence.

[0413] Optionally, the method further includes:

[0414] The first sequence is configured to at least one second device.

[0415] Optionally, the first pattern satisfies any one of the following conditions:

[0416] At least first N time-domain symbols of the first information in the first pattern are ON symbols;

[0417] At least the first N time domain symbols of the first information under the first pattern are high-level symbols;

[0418] At least the first N time domain symbols of the first information under the first pattern are DATA1 symbols;

[0419] The N is predefined by the protocol and is an integer greater than 0.

[0420] For a detailed description of steps 3201-3202, please refer to the above embodiment description.

[0421] The communication method involved in the embodiments of the present disclosure may include at least one of steps 3201 and 3202. For example, step 3201 may be implemented as an independent embodiment, step 3202 may be implemented as an independent embodiment, and steps 3201+3202 may be implemented as independent embodiments, but are not limited thereto.

[0422] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0423] FIG4A is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG4A , the embodiment of the present disclosure relates to a communication method for a second device, the method comprising:

[0424] Step 4101: Receive a first modulation mode and / or a first pattern configured by a first device.

[0425] Step 4102: Determine a first modulation mode and / or a first pattern.

[0426] Step 4103: Receive first information based on the first modulation mode and / or the first pattern.

[0427] For a detailed description of steps 4101-4103, please refer to the above embodiment description.

[0428] The communication method involved in the embodiments of the present disclosure may include at least one of steps 4101 to 4103. For example, step 4101 may be implemented as an independent embodiment, step 4102 may be implemented as an independent embodiment, and steps 4101+4102 may be implemented as independent embodiments, but are not limited thereto.

[0429] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0430] FIG4B is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG4B , the embodiment of the present disclosure relates to a communication method for a second device, the method comprising:

[0431] Step 4401: Determine a first modulation mode and / or a first pattern.

[0432] Step 4402: Receive first information based on a first modulation method and / or a first pattern.

[0433] Optionally, the first modulation mode is used to modulate first information, the first pattern is a pattern corresponding to the first information, and the first information is used for time-frequency synchronization between the first device and the second device;

[0434] Optionally, determining the first modulation mode and / or the first pattern includes at least one of the following:

[0435] Determining the first modulation mode and / or the first pattern based on a protocol agreement;

[0436] Receive the first modulation mode and / or first pattern configured by the first device.

[0437] Optionally, the first information includes at least one of the following:

[0438] a first synchronization signal;

[0439] First preamble.

[0440] Optionally, the process of the first device sending the first information is performed independently or simultaneously with the first transmission process of the first device, and the first transmission process is: the process of the first device sending second information to the second device, and the second information is any information other than the first information.

[0441] Optionally, the first information is sent in at least one of the following ways:

[0442] Periodically sending the first information; wherein one or more first information are sent in one period;

[0443] The first information is sent once; wherein, one or more first information are sent once the first information is sent.

[0444] Optionally, the first modulation mode includes at least one of the following:

[0445] On-off keying OOK-1 modulation;

[0446] OOK-4 modulation mode;

[0447] Pulse width encoding PIE modulation method;

[0448] Frequency modulation FM0 modulation mode;

[0449] Miller modulation method.

[0450] Optionally, when sending one or more first information, the first modulation modes corresponding to different first information are the same or different.

[0451] Optionally, the first pattern is a fixed pattern.

[0452] Optionally, when one or more first information are sent, the first patterns corresponding to different first information are the same or different.

[0453] Optionally, the first modulation mode is OOK-1 modulation mode, OOK-4 modulation mode, FMO modulation mode, or Miller modulation mode; and the first pattern includes at least one of the following pattern features:

[0454] First pattern feature: all modulation symbols of the first information are ON symbols;

[0455] Second pattern feature: some modulation symbols of the first information are ON symbols, and another part of the modulation symbols are OFF symbols, and the number of the ON symbols corresponding to the first information is equal to the number of the OFF symbols corresponding to the first information;

[0456] Third pattern feature: some modulation symbols of the first information are ON symbols, and another part of the modulation symbols are OFF symbols, and the number of the ON symbols corresponding to the first information is different from the number of the OFF symbols corresponding to the first information;

[0457] Fourth pattern feature: all modulation symbols within at least a first duration of the first information are ON symbols, and the remaining modulation symbols are OFF symbols; the first duration is a subset of the total transmission duration of the first information.

[0458] Optionally, the first modulation mode is a PIE modulation mode; and the first pattern includes at least one of the following pattern features:

[0459] Fifth pattern feature: all modulation symbols of the first information are DATA0 symbols;

[0460] Sixth pattern feature: all modulation symbols of the first information are DATA1 symbols;

[0461] Seventh pattern feature: some modulation symbols of the first information are DATA0 symbols, and another part of the modulation symbols are DATA1 symbols, and the number of the DATA0 symbols corresponding to the first information is equal to the number of the DATA1 symbols corresponding to the first information;

[0462] Eighth pattern feature: some modulation symbols of the first information are DATA0 symbols, and another part of the modulation symbols are DATA1 symbols, and the number of the DATA0 symbols corresponding to the first information is different from the number of the DATA1 symbols corresponding to the first information;

[0463] Ninth pattern feature: all modulation symbols in at least a second duration of the first information are DATA0 symbols, and the remaining modulation symbols are DATA1 symbols; the second duration is less than the total transmission duration of the first information;

[0464] The tenth pattern feature: the modulation symbols in at least the second duration of the first information are all DATA1 symbols, and the remaining modulation symbols are DATA0 symbols; the second duration is less than the total transmission duration of the first information.

[0465] Optionally, the first pattern includes the following pattern features:

[0466] One time domain symbol of the first information includes K low levels of the third duration and L high levels of the fourth duration.

[0467] Optionally, the K, the third duration, L, and the fourth duration are all agreed upon by agreement; wherein, K is equal to or unequal to L, and the third duration is equal to or unequal to the fourth duration.

[0468] Optionally, determining the first pattern includes:

[0469] Determine and / or receive a first sequence configured by a first device based on a protocol agreement, where the first sequence is used to indicate the first pattern;

[0470] The first pattern is determined based on the first sequence.

[0471] Optionally, the first pattern satisfies any one of the following conditions:

[0472] At least first N time-domain symbols of the first information in the first pattern are ON symbols;

[0473] At least the first N time domain symbols of the first information under the first pattern are high-level symbols;

[0474] At least the first N time domain symbols of the first information under the first pattern are DATA1 symbols;

[0475] The N is predefined by the protocol and is an integer greater than 0.

[0476] Optionally, the receiving the first information based on the first modulation mode and / or the first pattern includes:

[0477] Determining a first demodulation mode corresponding to the first modulation mode;

[0478] The first information is received based on the first demodulation mode and / or the first pattern.

[0479] For a detailed description of steps 4201-4202, please refer to the above embodiment description.

[0480] The communication method involved in the embodiments of the present disclosure may include at least one of steps 4201 and 4202. For example, step 4201 may be implemented as an independent embodiment, step 4202 may be implemented as an independent embodiment, and steps 4201+4202 may be implemented as independent embodiments, but are not limited thereto.

[0481] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0482] Figure 5 is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 5, the embodiment of the present disclosure relates to a communication method for a communication system including a first device and a second device. The method includes at least one of the following:

[0483] Step 5101: The first device determines a first modulation mode and / or a first pattern;

[0484] Step 5102: The first device sends first information to at least one second device based on the first modulation mode and / or the first pattern.

[0485] Step 5103: The second device determines a first modulation mode and / or a first pattern.

[0486] Step 5104: The second device receives first information based on the first modulation method and / or the first pattern.

[0487] Optional implementations of steps 5101 to 5104 can be found in the above embodiments.

[0488] In some embodiments, the above method may include the method described in the above embodiments of the communication system side, terminal side, network device side, etc., which will not be repeated here.

[0489] The communication method involved in the embodiment of the present disclosure may include at least one of steps 5101 to 5104. For example, step 5101 may be implemented as an independent embodiment, and step 5102 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0490] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0491] The following is an exemplary introduction to the above method.

[0492] Optional embodiment 1

[0493] In a network, A-IoT network devices communicate with A-IoT terminal devices. A-IoT network devices include base stations, intermediate nodes, auxiliary nodes, etc. A terminal can serve as an intermediate node or an auxiliary node. The types of A-IoT terminal devices include at least one of Type A, Type B, and Type C. The A-IoT network device sends an excitation signal to at least one A-IoT terminal device. The excitation signal can be used to trigger communication with the A-IoT terminal device and transmit control signaling, data, etc. Optionally, the excitation signal can also be used as a charging energy source for the A-IoT terminal device. The A-IoT network device sends a CW signal to at least one A-IoT terminal device. The CW signal can be used for backscatter communication with the A-IoT terminal device, etc. Optionally, the CW signal can also be used as a charging energy source for the A-IoT terminal device.

[0494] The A-IoT network device sends an A-SS, and the sending method includes periodic sending or one-time sending. The A-IoT terminal device receives the A-SS and obtains time and frequency synchronization at least according to the A-SS. Optionally, the A-SS is independent of the downlink signaling (excitation signal or CW signal, for example: control signaling, data signaling, signaling combining control and data signaling, charging signal, backscatter signal). The A-SS can be sent periodically as one A-SS or as a group of A-SSs. Alternatively, it can be sent once as one A-SS or as a group of A-SSs.

[0495] The time domain pattern design method of the A-SS includes at least one of the following:

[0496] Optional Example 1:

[0497] A-SS is modulated by OOK-1 and has a fixed time domain pattern. The fixed time domain pattern is predefined by the protocol or configured by the A-IoT network device to the A-IoT terminal device.

[0498] The fixed time domain pattern includes at least one of the following forms:

[0499] The A-SS duration is filled with ON symbols;

[0500] The A-SS duration is divided into ON symbols and OFF symbols, and the number of ON symbols is equal to the number of OFF symbols;

[0501] The A-SS duration is divided into ON symbols and OFF symbols, and the number of ON symbols and OFF symbols is not equal;

[0502] At least one duration d of the A-SS duration is entirely ON symbols, and the others are OFF symbols.

[0503] The duration of the A-SS duration is D, and d is less than D.

[0504] Optional Example 2:

[0505] A-SS is modulated by OOK-4 and has a fixed time domain pattern. The fixed time domain pattern is predefined by the protocol or configured by the A-IoT network device to the A-IoT terminal device.

[0506] The fixed time domain pattern includes at least one of the following forms:

[0507] The A-SS duration is filled with ON symbols;

[0508] The A-SS duration is divided into ON symbols and OFF symbols, and the number of ON symbols is equal to the number of OFF symbols;

[0509] The A-SS duration is divided into ON symbols and OFF symbols, and the number of ON symbols and OFF symbols is not equal;

[0510] At least one duration d of the A-SS duration is entirely ON symbols, and the others are OFF symbols.

[0511] The duration of the A-SS duration is D, and d is less than D.

[0512] Optional Example 3:

[0513] The A-SS is modulated by PIE and has a fixed time domain pattern. The fixed time domain pattern is predefined by the protocol or configured by the A-IoT network device to the A-IoT terminal device.

[0514] The fixed time domain pattern includes at least one of the following forms:

[0515] The entire A-SS duration is DATA0;

[0516] The entire A-SS duration is DATA1;

[0517] The A-SS duration is internally divided into DATA0 and DATA1, and DATA0 is equal to DATA1;

[0518] The A-SS duration is divided into DATA0 and DATA1, and the number of DATA0 and DATA1 is not equal;

[0519] The duration d of A-SS duration is DATA0 for all and DATA1 for others;

[0520] At least one duration d of the A-SS duration is entirely DATA1, and the others are DATA0.

[0521] The duration of the A-SS duration is D, and d is less than D.

[0522] Optional Example 4:

[0523] A-SS is modulated by FMO and has a fixed time domain pattern. The fixed time domain pattern is predefined by the protocol or configured by the A-IoT network device to the A-IoT terminal device.

[0524] The fixed time domain pattern includes at least one of the following forms:

[0525] The A-SS duration is filled with ON symbols;

[0526] The A-SS duration is divided into ON symbols and OFF symbols, and the number of ON symbols is equal to the number of OFF symbols;

[0527] The A-SS duration is divided into ON symbols and OFF symbols, and the number of ON symbols and OFF symbols is not equal;

[0528] At least one duration d of the A-SS duration is entirely ON symbols, and the others are OFF symbols.

[0529] The duration of the A-SS duration is D, and d is less than D.

[0530] Optional Example 5:

[0531] A-SS is Miller modulated and has a fixed time-domain pattern. The fixed time-domain pattern is predefined by the protocol or configured by the A-IoT network device to the A-IoT terminal device.

[0532] The fixed time domain pattern includes at least one of the following forms:

[0533] The A-SS duration is filled with ON symbols;

[0534] The A-SS duration is divided into ON symbols and OFF symbols, and the number of ON symbols is equal to the number of OFF symbols;

[0535] The A-SS duration is divided into ON symbols and OFF symbols, and the number of ON symbols and OFF symbols is not equal;

[0536] At least one duration d of the A-SS duration is entirely ON symbols, and the others are OFF symbols.

[0537] The duration of the A-SS duration is D, and d is less than D.

[0538] Optional Example 6:

[0539] A-SS is a fixed time domain pattern. The fixed time domain pattern is predefined by the protocol or configured by the A-IoT network device to the A-IoT terminal device.

[0540] The fixed time domain pattern includes at least one of the following forms:

[0541] In a time domain symbol within the A-SS duration, there are K low levels of sub-duration k and L high levels of sub-duration l, and K and L, k and l are predefined by the protocol, K and L are equal in value, and k and l are equal in length;

[0542] In a time domain symbol within the A-SS duration, there are K low levels of sub-duration k and L high levels of sub-duration l, and K and L, k and l are predefined by the protocol. The values ​​of K and L are not equal, and the lengths of k and l are equal.

[0543] In a time domain symbol within the A-SS duration, there are K low levels of sub-duration k and L high levels of sub-duration l, and K and L, k and l are predefined by the protocol. K and L have the same value, but k and l have different lengths.

[0544] In a time domain symbol within the A-SS duration, there are K low levels of sub-duration k and L high levels of sub-duration l. K and L, k and l are predefined by the protocol. The values ​​of K and L are not equal, and the lengths of k and l are not equal.

[0545] For example, in FIG. 2B , there are 2 low levels and 3 high levels in a time domain symbol within the A-SS duration, and the lengths of the high levels and the low levels are equal.

[0546] In the above six exemplary methods, optionally, at least the first N time domain symbols of the A-SS are ON symbols, or high-level symbols, where N is predefined by the protocol and is an integer greater than 0.

[0547] Optional Example 7:

[0548] The protocol defines an A-SS pattern sequence, and the A-SS pattern is determined based on this A-SS pattern sequence. The A-SS pattern sequence is a binary sequence, where the first value represents a high level and the second value represents a low level. The A-SS pattern length is predefined by the protocol or configured by the A-IoT network device.

[0549] In one implementation, the A-SS pattern sequence length is 1010 of 4, representing “ON, OFF, ON, OFF”.

[0550] Optional embodiment 2

[0551] In a network, A-IoT network devices communicate with A-IoT terminal devices. A-IoT network devices include base stations, intermediate nodes, auxiliary nodes, etc. A terminal can serve as an intermediate node or an auxiliary node. The types of A-IoT terminal devices include at least one of Type A, Type B, and Type C. The A-IoT network device sends an excitation signal to at least one A-IoT terminal device. The excitation signal can be used to trigger communication with the A-IoT terminal device and transmit control signaling, data, etc. Optionally, the excitation signal can also be used as a charging energy source for the A-IoT terminal device. The A-IoT network device sends a CW signal to at least one A-IoT terminal device. The CW signal can be used for backscatter communication with the A-IoT terminal device, etc. Optionally, the CW signal can also be used as a charging energy source for the A-IoT terminal device.

[0552] A-IoT network devices send A-preambles along with downlink signaling (excitation signals or CW signals, such as control signaling, data signaling, combined control and data signaling, charging signals, and backscatter signals). A-IoT terminal devices receive the A-preamble and achieve time and frequency synchronization based on at least the A-preamble.

[0553] The time domain pattern design method of the A-preamble includes at least one of the following:

[0554] Optional Example 1:

[0555] The A-preamble is modulated by OOK-1 and has a fixed time-domain pattern. The fixed time-domain pattern is predefined by the protocol or configured by the A-IoT network device to the A-IoT terminal device.

[0556] The fixed time domain pattern includes at least one of the following forms:

[0557] A-preamble duration contains only ON symbols;

[0558] The A-preamble duration is divided into ON symbols and OFF symbols, and the number of ON symbols is equal to the number of OFF symbols;

[0559] The A-preamble duration is divided into ON symbols and OFF symbols, and the number of ON symbols and OFF symbols is not equal;

[0560] At least one duration d of the A-preamble duration is entirely ON symbols, and the others are OFF symbols.

[0561] The duration of the A-preamble duration is D, and d is less than D.

[0562] Optional Example 2:

[0563] The A-preamble is modulated by OOK-4 and has a fixed time-domain pattern. The fixed time-domain pattern is predefined by the protocol or configured by the A-IoT network device to the A-IoT terminal device.

[0564] The fixed time domain pattern includes at least one of the following forms:

[0565] A-preamble duration contains only ON symbols;

[0566] The A-preamble duration is divided into ON symbols and OFF symbols, and the number of ON symbols is equal to the number of OFF symbols;

[0567] The A-preamble duration is divided into ON symbols and OFF symbols, and the number of ON symbols and OFF symbols is not equal;

[0568] At least one duration d of the A-preamble duration is entirely ON symbols, and the others are OFF symbols.

[0569] The duration of the A-preamble duration is D, and d is less than D.

[0570] Optional Example 3:

[0571] The A-preamble is modulated by PIE and has a fixed time-domain pattern. The fixed time-domain pattern is predefined by the protocol or configured by the A-IoT network device to the A-IoT terminal device.

[0572] The fixed time domain pattern includes at least one of the following forms:

[0573] A-preamble duration is all DATA0;

[0574] A-preamble duration is all DATA1;

[0575] A-preamble duration is internally divided into DATA0 and DATA1, and DATA0 is equal to DATA1;

[0576] A-preamble duration is internally divided into DATA0 and partly into DATA1, and the number of DATA0 and DATA1 is not equal;

[0577] The duration d of A-preamble duration is all DATA0, and the others are DATA1;

[0578] At least one duration d of the A-preamble duration is entirely DATA1, and the others are DATA0.

[0579] The duration of the A-preamble duration is D, and d is less than D.

[0580] Optional Example 4:

[0581] The A-preamble is modulated by FM0 and has a fixed time-domain pattern. The fixed time-domain pattern is predefined by the protocol or configured by the A-IoT network device to the A-IoT terminal device.

[0582] The fixed time domain pattern includes at least one of the following forms:

[0583] A-preamble duration contains only ON symbols;

[0584] The A-preamble duration is divided into ON symbols and OFF symbols, and the number of ON symbols is equal to the number of OFF symbols;

[0585] The A-preamble duration is divided into ON symbols and OFF symbols, and the number of ON symbols and OFF symbols is not equal;

[0586] At least one duration d of the A-preamble duration is entirely ON symbols, and the others are OFF symbols.

[0587] The duration of the A-preamble duration is D, and d is less than D.

[0588] Optional Example 5:

[0589] The A-preamble is Miller modulated and has a fixed time-domain pattern that is predefined by the protocol or configured by the A-IoT network device to the A-IoT terminal device.

[0590] The fixed time domain pattern includes at least one of the following forms:

[0591] A-preamble duration contains only ON symbols;

[0592] The A-preamble duration is divided into ON symbols and OFF symbols, and the number of ON symbols is equal to the number of OFF symbols;

[0593] The A-preamble duration is divided into ON symbols and OFF symbols, and the number of ON symbols and OFF symbols is not equal;

[0594] At least one duration d of the A-preamble duration is entirely ON symbols, and the others are OFF symbols.

[0595] The duration of the A-preamble duration is D, and d is less than D.

[0596] Optional Example 6:

[0597] A-preamble is a fixed time domain pattern. The fixed time domain pattern is predefined by the protocol or configured by the A-IoT network device to the A-IoT terminal device.

[0598] The fixed time domain pattern includes at least one of the following forms:

[0599] In a time domain symbol within the A-preamble duration, there are K low levels of sub-duration k and L high levels of sub-duration l, and K and L, k and l are predefined by the protocol, K and L have the same value, and k and l have the same length;

[0600] In a time domain symbol within the A-preamble duration, there are K low levels of sub-duration k and L high levels of sub-duration l, and K and L, k and l are predefined by the protocol. The values ​​of K and L are not equal, and the lengths of k and l are equal.

[0601] In a time domain symbol within the A-preamble duration, there are K low levels of sub-duration k and L high levels of sub-duration l, and K and L, k and l are predefined by the protocol. K and L have the same value, but k and l have different lengths.

[0602] In a time domain symbol within the A-preamble duration, there are K low levels of sub-duration k and L high levels of sub-duration l. K and L, k and l are predefined by the protocol. The values ​​of K and L are not equal, and the lengths of k and l are not equal.

[0603] Optionally, at least the first N time domain symbols of the A-preamble are ON symbols, or high-level symbols. The N is predefined by the protocol and is an integer greater than 0.

[0604] Optional Example 7:

[0605] The protocol defines an A-preamble pattern sequence, and the A-preamble pattern is determined based on this A-preamble pattern sequence. The A-preamble pattern sequence is a binary sequence, where the first value represents a high level and the second value represents a low level. The length of the A-SS Pattern sequence is predefined by the protocol or configured by the A-IoT network device.

[0606] In one implementation, the A-preamble pattern sequence length is 1010, which is 4 and represents “ON, OFF, ON, OFF”.

[0607] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0608] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0609] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution 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 relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by 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 implementing the hardware circuit configuration 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. In addition, 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), a deep learning processing unit (DPU), etc.

[0610] FIG6A is a schematic diagram of the structure of the first device proposed in an embodiment of the present disclosure. As shown in FIG6A , it includes:

[0611] a processing module, configured to determine a first modulation mode and / or a first pattern, wherein the first modulation mode is used to modulate first information, the first pattern is a pattern corresponding to the first information, the first information is used for time-frequency synchronization between the first device and a second device, and the second device is a device that communicates based on collected energy;

[0612] The transceiver module is configured to send the first information to at least one second device based on a first modulation mode and / or a first pattern.

[0613] Optionally, the processing module is used to execute the steps related to "processing" executed by the first device in any of the above methods, and the transceiver module is used to execute the steps related to "transmitting and receiving" executed by the first device in any of the above methods.

[0614] FIG6B is a schematic diagram of the structure of the second device proposed in an embodiment of the present disclosure. As shown in FIG6B , it includes:

[0615] a processing module, configured to determine a first modulation mode and / or a first pattern, where the first modulation mode is used to modulate first information, the first pattern is a pattern corresponding to the first information, and the first information is used for time-frequency synchronization between the first device and the second device;

[0616] A transceiver module is configured to receive the first information based on the first modulation mode and / or the first pattern.

[0617] Optionally, the transceiver module is used to execute the steps related to "processing" executed by the second device in any of the above methods, and the transceiver module is used to execute the steps related to "transmitting and receiving" executed by the second device in any of the above methods.

[0618] Figure 7A is a schematic diagram of the structure of a communication device 7100 proposed in an embodiment of the present disclosure. Communication device 7100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 7100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0619] As shown in Figure 7A, the communication device 7100 includes one or more processors 7101. The processor 7101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. The processor 7101 is used to call instructions to enable the communication device 7100 to perform any of the above methods.

[0620] 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 be located outside the communication device 7100.

[0621] 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 communication steps such as sending and receiving in the above method are performed by the transceiver 7103, and the other steps are performed by the processor 7101.

[0622] In some embodiments, a transceiver may include a receiver and a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0623] Optionally, the communication device 7100 further includes one or more interface circuits 7104, which are connected to the memory 7102. The interface circuits 7104 may be configured to receive signals from the memory 7102 or other devices, and may be configured to send signals to the memory 7102 or other devices. For example, the interface circuits 7104 may read instructions stored in the memory 7102 and send the instructions to the processor 7101.

[0624] The communication device 7100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 7100 described in the present disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited by FIG. 7a. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0625] 7B is a schematic diagram of the structure of a chip 7200 proposed in an embodiment of the present disclosure. If the communication device 7100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 7200 shown in FIG7B , but the present disclosure is not limited thereto.

[0626] The chip 7200 includes one or more processors 7201 , and the processor 7201 is used to call instructions so that the chip 7200 executes any of the above methods.

[0627] In some embodiments, chip 7200 further includes one or more interface circuits 7202, which are connected to memory 7203. Interface circuit 7202 can be used to receive signals from memory 7203 or other devices, and can be used to send signals to memory 7203 or other devices. For example, interface circuit 7202 can read instructions stored in memory 7203 and send the instructions to processor 7201. Optionally, the terms interface circuit, interface, transceiver pin, and transceiver are interchangeable.

[0628] In some embodiments, the chip 7200 further includes one or more memories 7203 for storing instructions. Alternatively, all or part of the memories 7203 may be located outside the chip 7200.

[0629] The present disclosure also proposes a storage medium having instructions stored thereon. When the instructions are executed on the communication device 7100, the communication device 7100 executes 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 is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a temporary storage medium.

[0630] The present disclosure also provides a program product, which, when executed by the communication device 7100, enables the communication device 7100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0631] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

[0632] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented using software, all or part of the embodiments can be implemented in the form of 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 the present 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 transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer program can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0633] Those skilled in the art will appreciate that the units and algorithm steps of each example 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 performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians 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.

[0634] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0635] The foregoing description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any modifications or substitutions that can be readily conceived by a person skilled in the art within the technical scope disclosed herein are intended to be encompassed within the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure shall be subject to the scope of protection of the claims.

Claims

1. A communication method, characterized in that: Executed by a first device, the method includes: Determining a first modulation mode and / or a first pattern, where the first modulation mode is used to modulate first information, the first pattern is a pattern corresponding to the first information, and the first information is used for time-frequency synchronization between the first device and a second device, where the second device is a device that communicates based on collected energy; The first information is sent to at least one second device based on a first modulation method and / or a first pattern.

2. The method according to claim 1, wherein The determining of the first modulation mode and / or the first pattern includes: The first modulation mode and / or first pattern is determined based on protocol agreement.

3. The method according to claim 1 or 2, wherein: The method further comprises: The first modulation mode and / or the first pattern are configured for at least one second device.

4. The method according to any one of claims 1 to 3, characterized in that: The first information includes at least one of the following: a first synchronization signal; First preamble.

5. The method according to any one of claims 1 to 4, characterized in that: The process of the first device sending the first information is performed independently or simultaneously with the first transmission process of the first device. The first transmission process is: the process of the first device sending second information to the second device, and the second information is any information other than the first information.

6. The method according to any one of claims 1 to 5, characterized in that: The sending method of the first information includes at least one of the following: Periodically sending the first information; wherein one or more first information are sent in one period; The first information is sent once; wherein, one or more first information are sent once the first information is sent.

7. The method according to any one of claims 1 to 6, wherein: The first modulation mode includes at least one of the following: On-off keying OOK-1 modulation; OOK-4 modulation mode; Pulse width encoding PIE modulation method; Frequency modulation FM0 modulation mode; Miller modulation method.

8. The method according to claim 6 or 7, wherein: When one or more first information are sent, the first modulation modes corresponding to different first information are the same or different.

9. The method according to any one of claims 1 to 8, wherein: The first pattern is a fixed pattern.

10. The method according to any one of claims 6 to 9, characterized in that: When one or more first information are sent, the first patterns corresponding to different first information are the same or different.

11. The method according to any one of claims 1 to 10, wherein: The first modulation mode is OOK-1 modulation mode, OOK-4 modulation mode, FMO modulation mode, or Miller modulation mode; and the first pattern includes at least one of the following pattern features: First picture Sample feature: all modulation symbols of the first information are ON symbols; Second pattern feature: some modulation symbols of the first information are ON symbols, and another part of the modulation symbols are OFF symbols, and the number of the ON symbols corresponding to the first information is equal to the number of the OFF symbols corresponding to the first information; Third pattern feature: some modulation symbols of the first information are ON symbols, and another part of the modulation symbols are OFF symbols, and the number of the ON symbols corresponding to the first information is different from the number of the OFF symbols corresponding to the first information; Fourth pattern feature: all modulation symbols within at least a first duration of the first information are ON symbols, and the remaining modulation symbols are OFF symbols; the first duration is a subset of the total transmission duration of the first information.

12. The method according to any one of claims 1 to 10, wherein: The first modulation mode is a PIE modulation mode; and the first pattern includes at least one of the following pattern features: Fifth pattern feature: all modulation symbols of the first information are DATA0 symbols; Sixth pattern feature: all modulation symbols of the first information are DATA1 symbols; Seventh pattern feature: some modulation symbols of the first information are DATA0 symbols, and another part of the modulation symbols are DATA1 symbols, and the number of the DATA0 symbols corresponding to the first information is equal to the number of the DATA1 symbols corresponding to the first information; Eighth pattern feature: some modulation symbols of the first information are DATA0 symbols, and another part of the modulation symbols are DATA1 symbols, and the number of the DATA0 symbols corresponding to the first information is different from the number of the DATA1 symbols corresponding to the first information; Ninth pattern feature: all modulation symbols in at least a second duration of the first information are DATA0 symbols, and the remaining modulation symbols are DATA1 symbols; the second duration is less than the total transmission duration of the first information; The tenth pattern feature: the modulation symbols in at least the second duration of the first information are all DATA1 symbols, and the remaining modulation symbols are DATA0 symbols; the second duration is less than the total transmission duration of the first information.

13. The method according to any one of claims 1 to 10, wherein: The first pattern includes the following pattern features: One time domain symbol of the first information includes K low levels of the third duration and L high levels of the fourth duration.

14. The method according to claim 13, wherein The K, the third duration, L, and the fourth duration are all agreed upon by the agreement; wherein, K and L are equal or unequal, and the third duration and the fourth duration are equal or unequal.

15. The method according to any one of claims 1 to 14, wherein: The determining of the first pattern includes: Determining a first sequence based on a protocol agreement, where the first sequence is used to indicate the first pattern; The first pattern is determined based on the first sequence.

16. The method according to claim 15, wherein The method further comprises: The first sequence is configured to at least one second device.

17. The method according to any one of claims 1 to 16, wherein: The first pattern satisfies any of the following conditions: At least first N time-domain symbols of the first information in the first pattern are ON symbols; At least the first N time domain symbols of the first information under the first pattern are high-level symbols; At least the first N time domain symbols of the first information under the first pattern are DATA1 symbols; The N is predefined by the protocol and is an integer greater than 0.

18. A communication method, characterized in that: The method is performed by a second device, where the second device is a device that communicates based on collected energy, and includes: Determine a first modulation mode and / or a first pattern, where the first modulation mode is used to modulate first information, the first pattern is a pattern corresponding to the first information, and the first information is used for time-frequency synchronization between the first device and the second device; The first information is received based on the first modulation mode and / or the first pattern.

19. The method according to claim 18, wherein Determining the first modulation mode and / or the first pattern includes at least one of the following: Determining the first modulation mode and / or the first pattern based on a protocol agreement; Receive the first modulation mode and / or first pattern configured by the first device.

20. The method of claim 18, wherein: The determining of the first pattern includes: Determine and / or receive a first sequence configured by a first device based on a protocol agreement, where the first sequence is used to indicate the first pattern; The first pattern is determined based on the first sequence.

21. The method according to any one of claims 18 to 20, wherein: The receiving the first information based on the first modulation mode and / or the first pattern includes: Determining a first demodulation mode corresponding to the first modulation mode; The first information is received based on the first demodulation mode and / or the first pattern.

22. A communication method for a communication system, the communication system comprising a first device and a second device; the second device being an environmental Internet of Things device, the method comprising: The first device determines a first modulation mode and / or a first pattern, where the first modulation mode is used to modulate first information, the first pattern is a pattern corresponding to the first information, and the first information is used for time-frequency synchronization between the first device and a second device, where the second device is a device that communicates based on collected energy; The first device sends the first information to at least one second device based on a first modulation mode and / or a first pattern; The second device determines a first modulation mode and / or a first pattern; The second device receives the first information based on a first modulation method and / or a first pattern.

23. A first device, characterized in that: include: a processing module, configured to determine a first modulation mode and / or a first pattern, wherein the first modulation mode is used to modulate first information, the first pattern is a pattern corresponding to the first information, the first information is used for time-frequency synchronization between the first device and a second device, and the second device is a device that communicates based on collected energy; The transceiver module is configured to send the first information to at least one second device based on a first modulation mode and / or a first pattern.

24. A second device, characterized in that: include: a processing module, configured to determine a first modulation mode and / or a first pattern, where the first modulation mode is used to modulate first information, the first pattern is a pattern corresponding to the first information, and the first information is used for time-frequency synchronization between the first device and the second device; A transceiver module is configured to receive the first information based on the first modulation mode and / or the first pattern.

25. A communication device, characterized in that: include: one or more processors; A memory coupled to the processor, wherein instructions are stored in the memory, and when the instructions are executed by the processor, the communication device executes the method according to any one of claims 1 to 17.

26. A communication device, characterized in that: include: one or more processors; A memory coupled to the processor, wherein instructions are stored in the memory, and when the instructions are executed by the processor, the communication device executes the method according to any one of claims 18 to 21.

27. A communication system, characterized in that: The method comprises a first device and a second device, wherein the first device is configured to implement the method according to any one of claims 1 to 17, and the second device is configured to implement the method according to any one of claims 18 to 21.

28. A storage medium storing instructions, characterized in that: When the instruction is executed on a communication device, the communication device is caused to execute the method according to any one of claims 1 to 17.

29. A storage medium storing instructions, characterized in that: When the instruction is executed on a communication device, the communication device is caused to execute the method according to any one of claims 18 to 21.

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