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

Abstract

The present disclosure provides a communication method and apparatus, a communication device, a communication system and a storage medium. The method comprises: determining a first transmission parameter, the first transmission parameter being a parameter used when determining a time-frequency resource for transmitting first information, the first information being used by a first device to perform time domain synchronization and / or frequency domain synchronization with a second device, and the second device being a device for performing communication on the basis of collected energy; and on the basis of the first transmission parameter, sending the first information to at least one second device. The method of the present disclosure ensures time domain synchronization and / or frequency domain synchronization between the first device and the 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 transmission parameter, where the first transmission parameter is a parameter used to determine a time-frequency resource for transmitting first information, the first information being used for time domain and / or frequency domain 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 the first transmission parameter.

[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] Determining a first transmission parameter, where the first transmission parameter is a parameter used to determine a time-frequency resource for transmitting first information, and the first information is used for time domain and / or frequency domain synchronization between the first device and the second device;

[0010] The first information sent by the first device is received based on the first transmission parameter.

[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 transmission parameter, where the first transmission parameter is a parameter used to determine a time-frequency resource for transmitting first information, and the first information is used for time domain and / or frequency domain 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 the first transmission parameter;

[0014] The second device determines a first transmission parameter;

[0015] The second device receives the first information sent by the first device based on the first transmission parameter.

[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 transmission parameter, where the first transmission parameter is a parameter used to determine a time-frequency resource for transmitting first information, the first information being used for time-domain and / or frequency-domain synchronization between the first device and a second device, where the second device is a device that communicates based on collected energy;

[0018] A transceiver module is used to send the first information to at least one second device based on the first transmission parameter.

[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 transmission parameter, where the first transmission parameter is a parameter used to determine a time-frequency resource for transmitting first information, and the first information is used for time domain and / or frequency domain synchronization between the first device and the second device;

[0021] A transceiver module is used to receive the first information sent by the first device based on the first transmission parameter.

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

[0032] FIG3B is a flow chart of a communication method provided in yet another embodiment of the present disclosure;

[0033] FIG4A is a flow chart of a communication method provided in yet another embodiment of the present disclosure;

[0034] FIG4B is a flow chart of a communication method provided in yet another embodiment of the present disclosure;

[0035] FIG5 is a flow chart of a communication method provided in yet another embodiment of the present disclosure;

[0036] FIG6A is a schematic structural diagram of a first device provided by an embodiment of the present disclosure;

[0037] FIG6B is a schematic structural diagram of a second device provided by an embodiment of the present disclosure;

[0038] FIG7A is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure;

[0039] FIG7B is a schematic structural diagram of a chip provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0040] The embodiments of the present disclosure provide a communication method and apparatus, a communication device, a communication system, and a storage medium.

[0041] In a first aspect, an embodiment of the present disclosure provides a communication method, which is performed by a first device. The method includes:

[0042] Determining a first transmission parameter, where the first transmission parameter is a parameter used to determine a time-frequency resource for transmitting first information, the first information being used for time domain and / or frequency domain synchronization between the first device and a second device, where the second device is a device that communicates based on collected energy;

[0043] The first information is sent to at least one second device based on the first transmission parameter.

[0044] In the above embodiment, the first device will determine the first transmission parameter and will send the first information to at least one second device based on the first transmission parameter. The first transmission parameter is a parameter used to determine the time-frequency resource for the transmission of the first information, and the first information is used for the first device and the second device to synchronize in the time domain and / or frequency domain. The second device is a device that communicates based on the collected energy, such as an environmental Internet of Things device. It can be seen that in the method disclosed herein, the first transmission parameter corresponding to the time domain and / or frequency domain 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 determine the time-frequency resource for the transmission of the first information based on the first transmission parameter, and successfully send the time domain and / or frequency domain synchronization information to the second device based on the time-frequency resource, thereby ensuring the successful transmission of the time domain and / or frequency domain synchronization information between the first device and the second device, and ensuring the time domain and / or frequency domain synchronization between the first device and the second device.

[0045] In conjunction with some embodiments of the first aspect, in some embodiments, the first information includes at least one of the following:

[0046] a first synchronization signal;

[0047] First preamble.

[0048] In the above embodiment, it is defined what specific information the first information may be, and the form of the first information is clarified, so that the method disclosed herein can be implemented in actual communication scenarios to successfully achieve time domain and / or frequency domain synchronization between the first device and the second device in the Internet of Things communication scenario.

[0049] 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.

[0050] 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.

[0051] In conjunction with some embodiments of the first aspect, in some embodiments, determining the first transmission parameter includes at least one of the following:

[0052] Determining the first transmission parameter based on protocol agreement;

[0053] When the first device is not a network device, the first transmission parameter configured by the network device is received.

[0054] In the above embodiment, a method is provided for how the first device specifically determines the first transmission parameter, so that the first device can successfully determine the first transmission parameter, and then the first device can subsequently successfully send the first information (i.e., time domain and / or frequency domain synchronization information) to the second device based on the first transmission parameter, thereby ensuring the successful transmission of the time domain and / or frequency domain synchronization information between the first device and the second device, and ensuring the time domain and / or frequency domain synchronization between the first device and the second device.

[0055] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0056] The first transmission parameter is configured to at least one second device.

[0057] In the above embodiment, the first device will also configure the first transmission parameter to the second device so that the second device can successfully know the first transmission parameter corresponding to the time domain and / or frequency domain synchronization information, so that the second device can successfully receive the time domain and / or frequency domain synchronization information based on the first transmission parameter, and can further achieve time domain and / or frequency domain synchronization with the first device based on the received time domain and / or frequency domain synchronization information, thereby ensuring time domain and / or frequency domain synchronization between the first device and the second device.

[0058] In conjunction with some embodiments of the first aspect, in some embodiments, the first transmission parameter includes at least one of the following:

[0059] The frequency domain bandwidth of the first information;

[0060] The central frequency of the first information;

[0061] a period of the first information;

[0062] The time domain length of the first information;

[0063] the time domain position of the first information;

[0064] a first offset value corresponding to the first information, the first offset value being used to indicate, when a process of sending the first information by the first device is performed independently from a first transmission process of the first device, an offset between the first information and second information in the first transmission process;

[0065] a pattern of the first information within a period;

[0066] The terminator of the first information.

[0067] In conjunction with some embodiments of the first aspect, in some embodiments, the frequency domain bandwidth of the first information satisfies at least one of the following:

[0068] The frequency domain bandwidth of the first information is the same as the frequency domain bandwidth of the first signaling or the first channel; the first signaling is downlink signaling sent by the first device to the second device, and the first channel is a downlink channel sent by the first device to the second device;

[0069] The frequency domain bandwidth of the first information is a fixed bandwidth;

[0070] The frequency domain bandwidth of the first information can be configured.

[0071] In conjunction with some embodiments of the first aspect, in some embodiments, the central frequency of the first information satisfies at least one of the following:

[0072] The center frequency of the first information is the same as the center frequency of the first signal, the first channel, or the initial bandwidth part BWP; the first signal is a downlink signal sent by the first device to the second device, and the first channel is a downlink channel sent by the first device to the second device;

[0073] The center frequency of the first information is the same as the lower edge of the bandwidth of the first signal, the first channel, or the initial BWP;

[0074] The center frequency of the first information is the same as the upper edge of the bandwidth of the first signal, the first channel, or the initial BWP;

[0075] The center frequency of the first channel is Point A;

[0076] The center frequency of the first channel is a fixed frequency.

[0077] In conjunction with some embodiments of the first aspect, in some embodiments, the first channel includes at least one of the following:

[0078] A-IoT physical downlink control channel PDCCH;

[0079] A-IoT physical downlink shared channel PDSCH;

[0080] A-IoT physical uplink shared channel PUSCH;

[0081] A-IoT physical uplink control channel PUCCH;

[0082] A-IoT data control channel.

[0083] In conjunction with some embodiments of the first aspect, in some embodiments, the first signal includes at least one of the following:

[0084] Synchronization signal block SSB;

[0085] a second signal, wherein the second signal is used to stimulate the second device to perform backscattering;

[0086] A third signal is used to charge the second device.

[0087] In combination with some embodiments of the first aspect, in some embodiments, the period of the first information is a fixed period or the period of the first information can be configured.

[0088] In combination with some embodiments of the first aspect, in some embodiments, the period of the first information is the same as the period of the first communication operation; or, the period of the first information is the same as the period of the first scheduling; wherein, the first communication operation is the communication operation performed by the first device on the second device, and the first scheduling is the scheduling of the first device on the second device.

[0089] In combination with some embodiments of the first aspect, in some embodiments, the time domain length of the first information is a fixed time domain length or the time domain length of the first information can be configured.

[0090] In conjunction with some embodiments of the first aspect, in some embodiments, the time domain position of the first information satisfies at least one of the following conditions:

[0091] The time domain position of the first information is a fixed time unit;

[0092] The time domain position of the first information is a configurable time unit;

[0093] The time domain position of the first information is a configurable non-continuous time unit;

[0094] The time domain position of the first information is a configurable continuous time unit;

[0095] The time domain position of the first information is a fixed non-continuous time unit;

[0096] The time domain position of the first information is a fixed continuous time unit.

[0097] In combination with some embodiments of the first aspect, in some embodiments, the first offset value is a fixed offset value or the first offset value can be configured.

[0098] In combination with some embodiments of the first aspect, in some embodiments, the pattern of the first information within a period is a fixed pattern.

[0099] In combination with some embodiments of the first aspect, in some embodiments, the terminator of the first information is a fixed symbol.

[0100] In the above embodiment, the first transmission parameter is specifically defined, and it is clearly defined which parameters the first transmission parameter specifically includes, and the attributes of each parameter (that is, whether the parameter is "fixed" or "configurable") are defined, so that the first device and the second device can clearly know which parameters to determine and how to determine these parameters, thereby achieving successful determination of the first transmission parameter, so that the first device and the second device can successfully realize the transmission of the first information based on the determined first transmission parameter, ensuring the successful transmission of the first information between the first device and the second device, and ensuring time domain and / or frequency domain synchronization between the first device and the second device.

[0101] In combination with some embodiments of the first aspect, in some embodiments, when the first information includes a first synchronization signal and a first preamble code, there is a first time interval between the first synchronization signal and the first preamble code, and / or there is a second offset in the time domain between the first synchronization signal and the first preamble code.

[0102] In conjunction with some embodiments of the first aspect, in some embodiments, the first time interval and / or the second offset is determined by at least one of the following methods:

[0103] Determine the first time interval and / or the second offset based on a protocol agreement;

[0104] When the first device is not a network device, the first time interval and / or the second offset configured by the network device is received.

[0105] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0106] The first time interval and / or the second offset are configured to at least one second device.

[0107] In combination with some embodiments of the first aspect, in some embodiments, the first time interval is greater than or not less than a first value, and the second offset is greater than or not less than a second value.

[0108] In conjunction with some embodiments of the first aspect, in some embodiments, a method for determining the first value and / or the second value includes at least one of the following:

[0109] Determine the first value and / or the second value based on a protocol agreement;

[0110] Receive the first value and / or the second value reported by the second device.

[0111] In the above embodiment, for the scenario of "the first synchronization signal and the first preamble are sent in combination", the configuration relationship between the first synchronization signal and the first preamble (i.e., the aforementioned first time interval and / or second offset) is defined, so that the first device can successfully send the first synchronization signal and the first preamble to the second device based on the configuration relationship, ensuring the successful transmission of both the first synchronization signal and the first preamble. Moreover, since the first synchronization signal and the first preamble are sent in combination, the second device can combine the first synchronization signal and the first preamble to achieve time domain and / or frequency domain synchronization with the first device, thereby greatly improving the synchronization effect between the first device and the second device and ensuring the communication stability and efficiency between the first device and the second device.

[0112] In conjunction with some embodiments of the first aspect, in some embodiments, sending the first information includes at least one of the following:

[0113] periodically sending the first information;

[0114] The first information is sent aperiodically.

[0115] With reference to some embodiments of the first aspect, in some embodiments, the periodically sending the first information includes:

[0116] The first information is periodically sent within a first time period.

[0117] In conjunction with some embodiments of the first aspect, in some embodiments, the method for determining the first duration includes at least one of the following:

[0118] Determining the first duration based on the agreement;

[0119] receiving the first duration reported by the second device;

[0120] When the first device is a network device, receiving the first duration reported by the terminal;

[0121] When the first device is a terminal, receiving the first duration configured by a network device;

[0122] In conjunction with some embodiments of the first aspect, in some embodiments, the aperiodic sending of the first information includes:

[0123] Before scheduling a service to the second device, the first device sends the first information;

[0124] After the first device triggers a service to the second device, the first device sends the first information;

[0125] The first information sent before scheduling a service is the same as or different from the first information sent after triggering a service.

[0126] In conjunction with some embodiments of the first aspect, in some embodiments, before the first device schedules a service to the second device, sending the first information includes:

[0127] Determine a second time interval and / or a third value; wherein the second time interval is: the time interval between the time when the first information is sent and the time when the first device schedules the service, and the third value is the number of first information required to be sent before scheduling the service;

[0128] Before the first device schedules a service to the second device, the first information is sent based on the second time interval and / or the third value.

[0129] In combination with some embodiments of the first aspect, in some embodiments, determining the second time interval and / or the third value includes at least one of the following:

[0130] :

[0131] Determining the second time interval and / or the third value based on protocol agreement;

[0132] Receive the second time interval and / or third value reported by the second device.

[0133] In the above embodiment, a method is defined for how the first device specifically sends the first information to the second device, so that the first device can successfully send the first information (i.e., time domain and / or frequency domain synchronization information) to the second device based on this method, thereby ensuring the successful transmission of the time domain and / or frequency domain synchronization information between the first device and the second device, and ensuring the time domain and / or frequency domain synchronization between the first device and the second device.

[0134] 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:

[0135] Determining a first transmission parameter, where the first transmission parameter is a parameter used to determine a time-frequency resource for transmitting first information, and the first information is used for time domain and / or frequency domain synchronization between the first device and the second device;

[0136] The first information sent by the first device is received based on the first transmission parameter.

[0137] In the above embodiment, the second device will determine the first transmission parameter and will receive the first information sent by the first device based on the first transmission parameter. The first transmission parameter is a parameter used to determine the time-frequency resource for the transmission of the first information. The first information is used for the first device and the second device to synchronize in the time domain and / or frequency domain. The second device is a device that communicates based on the collected energy, such as an environmental Internet of Things device. It can be seen that in the method disclosed herein, the first transmission parameter corresponding to the time domain and / or frequency domain 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 domain and / or frequency domain synchronization information sent by the first device based on the first transmission parameter, thereby ensuring the successful transmission of the time domain and / or frequency domain synchronization information between the first device and the second device, and ensuring the time domain and / or frequency domain synchronization between the first device and the second device.

[0138] In conjunction with some embodiments of the second aspect, in some embodiments, the first information includes at least one of the following:

[0139] a first synchronization signal;

[0140] First preamble.

[0141] 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.

[0142] In conjunction with some embodiments of the second aspect, in some embodiments, determining the first transmission parameter includes at least one of the following:

[0143] Determining the first transmission parameter based on protocol agreement;

[0144] receiving the first transmission parameter configured by the first device;

[0145] The first transmission parameter is determined based on a production setting of the second device.

[0146] In conjunction with some embodiments of the second aspect, in some embodiments, the first transmission parameter includes at least one of the following:

[0147] The frequency domain bandwidth of the first information;

[0148] The central frequency of the first information;

[0149] a period of the first information;

[0150] The time domain length of the first information;

[0151] the time domain position of the first information;

[0152] a first offset value corresponding to the first information, the first offset value being used to indicate, when a process of sending the first information by the first device is performed independently from a first transmission process of the first device, an offset between the first information and second information in the first transmission process;

[0153] a pattern of the first information within a period;

[0154] The terminator of the first information.

[0155] In conjunction with some embodiments of the second aspect, in some embodiments, the frequency domain bandwidth of the first information satisfies at least one of the following:

[0156] The frequency domain bandwidth of the first information is the same as the frequency domain bandwidth of the first signaling or the first channel; the first signaling is downlink signaling sent by the first device to the second device, and the first channel is a downlink channel sent by the first device to the second device;

[0157] The frequency domain bandwidth of the first information is a fixed bandwidth;

[0158] The frequency domain bandwidth of the first information can be configured.

[0159] In conjunction with some embodiments of the second aspect, in some embodiments, the central frequency of the first information satisfies at least one of the following:

[0160] The center frequency of the first information is the same as the center frequency of the first signal, the first channel, or the initial bandwidth part BWP; the first signal is a downlink signal sent by the first device to the second device, and the first channel is a downlink channel sent by the first device to the second device;

[0161] The center frequency of the first information is the same as the lower edge of the bandwidth of the first signal, the first channel, or the initial BWP;

[0162] The center frequency of the first information is the same as the upper edge of the bandwidth of the first signal, the first channel, or the initial BWP;

[0163] The center frequency of the first channel is Point A;

[0164] The center frequency of the first channel is a fixed frequency.

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

[0166] A-IoT physical downlink control channel PDCCH;

[0167] A-IoT physical downlink shared channel PDSCH;

[0168] A-IoT physical uplink shared channel PUSCH;

[0169] A-IoT physical uplink control channel PUCCH;

[0170] A-IoT data control channel.

[0171] In conjunction with some embodiments of the second aspect, in some embodiments, the first signal includes at least one of the following:

[0172] Synchronization signal block SSB;

[0173] a second signal, wherein the second signal is used to stimulate the second device to perform backscattering;

[0174] A third signal is used to charge the second device.

[0175] In combination with some embodiments of the second aspect, in some embodiments, the period of the first information is a fixed period or the period of the first information can be configured.

[0176] In combination with some embodiments of the second aspect, in some embodiments, the period of the first information is the same as the period of the first communication operation; or, the period of the first information is the same as the period of the first scheduling; wherein, the first communication operation is the communication operation performed by the first device on the second device, and the first scheduling is the scheduling of the first device on the second device.

[0177] In combination with some embodiments of the second aspect, in some embodiments, the time domain length of the first information is a fixed time domain length or the time domain length of the first information can be configured.

[0178] In conjunction with some embodiments of the second aspect, in some embodiments, the time domain position of the first information satisfies at least one of the following conditions:

[0179] The time domain position of the first information is a fixed time unit;

[0180] The time domain position of the first information is a configurable time unit;

[0181] The time domain position of the first information is a configurable non-continuous time unit;

[0182] The time domain position of the first information is a configurable continuous time unit;

[0183] The time domain position of the first information is a fixed non-continuous time unit;

[0184] The time domain position of the first information is a fixed continuous time unit.

[0185] In combination with some embodiments of the second aspect, in some embodiments, the first offset value is a fixed offset value or the first offset value can be configured.

[0186] In combination with some embodiments of the second aspect, in some embodiments, the pattern of the first information within a period is a fixed pattern.

[0187] In combination with some embodiments of the second aspect, in some embodiments, the terminator of the first information is a fixed symbol.

[0188] In combination with some embodiments of the second aspect, in some embodiments, when the first information includes a first synchronization signal and a first preamble code, there is a first time interval between the first synchronization signal and the first preamble code, and / or there is a second offset in the time domain between the first synchronization signal and the first preamble code.

[0189] In conjunction with some embodiments of the second aspect, in some embodiments, the first time interval and / or the second offset is determined by at least one of the following methods:

[0190] Determine the first time interval and / or the second offset based on a protocol agreement;

[0191] receiving the first time interval and / or the second offset configured by a first device;

[0192] The first time interval and / or the second offset are determined based on a production setting of the second device.

[0193] In combination with some embodiments of the second aspect, in some embodiments, the first time interval is greater than or not less than a first value, and the second offset is greater than or not less than a second value.

[0194] In conjunction with some embodiments of the second aspect, in some embodiments, a method for determining the first value and / or the second value includes at least one of the following:

[0195] Determine the first value and / or the second value based on a protocol agreement;

[0196] The first value and / or the second value are determined based on a production setting of the second device.

[0197] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0198] Report the first value and / or the second value corresponding to the second device to the first device.

[0199] In conjunction with some embodiments of the second aspect, in some embodiments, receiving the first information sent by the first device includes at least one of the following:

[0200] receiving the first information periodically sent by the first device;

[0201] Receive the first information aperiodically sent by the first device.

[0202] In conjunction with some embodiments of the second aspect, in some embodiments, the receiving the first information periodically sent by the first device includes:

[0203] Receive the first information periodically sent by the first device within a first time period.

[0204] With reference to some embodiments of the second aspect, in some embodiments, the first duration is agreed upon by an agreement;

[0205] The method further comprises:

[0206] Report the first duration to the first device.

[0207] In conjunction with some embodiments of the second aspect, in some embodiments, the receiving the first information aperiodically sent by the first device includes:

[0208] receiving the first information sent by the first device before scheduling a service to the second device;

[0209] receiving the first information sent by the first device after triggering a service to the second device;

[0210] The first information sent before scheduling a service is the same as or different from the first information sent after triggering a service.

[0211] In combination with some embodiments of the second aspect, in some embodiments, the first information sent by the first device before scheduling a service to the second device satisfies a second time interval and / or a third value; wherein, the second time interval is: the time interval between the sending time of the first information and the time when the first device schedules the service, and the third value is the number of the first information required to be sent before scheduling the service.

[0212] In conjunction with some embodiments of the second aspect, in some embodiments, the second time interval and / or the third value are agreed upon by a protocol;

[0213] The method further comprises:

[0214] Report the second time interval and / or the third value to the first device.

[0215] 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:

[0216] The first device determines a first transmission parameter, where the first transmission parameter is a parameter used to determine a time-frequency resource for transmitting first information, and the first information is used for time domain and / or frequency domain synchronization between the first device and a second device, where the second device is a device that communicates based on collected energy.

[0217] The first device sends the first information to at least one second device based on the first transmission parameter;

[0218] The second device determines a first transmission parameter;

[0219] The second device receives the first information sent by the first device based on the first transmission parameter.

[0220] In a fourth aspect, an embodiment of the present disclosure provides a first device, including:

[0221] a processing module, configured to determine a first transmission parameter, where the first transmission parameter is a parameter used to determine a time-frequency resource for transmitting first information, the first information being used for time-domain and / or frequency-domain synchronization between the first device and a second device, where the second device is a device that communicates based on collected energy;

[0222] A transceiver module is used to send the first information to at least one second device based on the first transmission parameter.

[0223] In conjunction with some embodiments of the fourth aspect, in some embodiments, the first information includes at least one of the following:

[0224] a first synchronization signal;

[0225] First preamble.

[0226] 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.

[0227] In conjunction with some embodiments of the fourth aspect, in some embodiments, determining the first transmission parameter includes at least one of the following:

[0228] Determining the first transmission parameter based on protocol agreement;

[0229] When the first device is not a network device, the first transmission parameter configured by the network device is received.

[0230] In conjunction with some embodiments of the fourth aspect, in some embodiments, the first device is further configured to:

[0231] The first transmission parameter is configured to at least one second device.

[0232] In conjunction with some embodiments of the fourth aspect, in some embodiments, the first transmission parameter includes at least one of the following:

[0233] The frequency domain bandwidth of the first information;

[0234] The central frequency of the first information;

[0235] a period of the first information;

[0236] The time domain length of the first information;

[0237] the time domain position of the first information;

[0238] a first offset value corresponding to the first information, the first offset value being used to indicate, when a process of sending the first information by the first device is performed independently from a first transmission process of the first device, an offset between the first information and second information in the first transmission process;

[0239] a pattern of the first information within a period;

[0240] The terminator of the first information.

[0241] In conjunction with some embodiments of the fourth aspect, in some embodiments, the frequency domain bandwidth of the first information satisfies at least one of the following:

[0242] The frequency domain bandwidth of the first information is the same as the frequency domain bandwidth of the first signaling or the first channel; the first signaling is downlink signaling sent by the first device to the second device, and the first channel is a downlink channel sent by the first device to the second device;

[0243] The frequency domain bandwidth of the first information is a fixed bandwidth;

[0244] The frequency domain bandwidth of the first information can be configured.

[0245] In conjunction with some embodiments of the fourth aspect, in some embodiments, the central frequency of the first information satisfies at least one of the following:

[0246] The center frequency of the first information is the same as the center frequency of the first signal, the first channel, or the initial bandwidth part BWP; the first signal is a downlink signal sent by the first device to the second device, and the first channel is a downlink channel sent by the first device to the second device;

[0247] The center frequency of the first information is the same as the lower edge of the bandwidth of the first signal, the first channel, or the initial BWP;

[0248] The center frequency of the first information is the same as the upper edge of the bandwidth of the first signal, the first channel, or the initial BWP;

[0249] The center frequency of the first channel is Point A;

[0250] The center frequency of the first channel is a fixed frequency.

[0251] In conjunction with some embodiments of the fourth aspect, in some embodiments, the first channel includes at least one of the following:

[0252] A-IoT physical downlink control channel PDCCH;

[0253] A-IoT physical downlink shared channel PDSCH;

[0254] A-IoT physical uplink shared channel PUSCH;

[0255] A-IoT physical uplink control channel PUCCH;

[0256] A-IoT data control channel.

[0257] In conjunction with some embodiments of the fourth aspect, in some embodiments, the first signal includes at least one of the following:

[0258] Synchronization signal block SSB;

[0259] a second signal, wherein the second signal is used to stimulate the second device to perform backscattering;

[0260] A third signal is used to charge the second device.

[0261] In combination with some embodiments of the fourth aspect, in some embodiments, the period of the first information is a fixed period or the period of the first information can be configured.

[0262] In combination with some embodiments of the fourth aspect, in some embodiments, the period of the first information is the same as the period of the first communication operation; or, the period of the first information is the same as the period of the first scheduling; wherein, the first communication operation is the communication operation performed by the first device on the second device, and the first scheduling is the scheduling of the first device on the second device.

[0263] In combination with some embodiments of the fourth aspect, in some embodiments, the time domain length of the first information is a fixed time domain length or the time domain length of the first information can be configured.

[0264] In conjunction with some embodiments of the fourth aspect, in some embodiments, the time domain position of the first information satisfies at least one of the following conditions:

[0265] The time domain position of the first information is a fixed time unit;

[0266] The time domain position of the first information is a configurable time unit;

[0267] The time domain position of the first information is a configurable non-continuous time unit;

[0268] The time domain position of the first information is a configurable continuous time unit;

[0269] The time domain position of the first information is a fixed non-continuous time unit;

[0270] The time domain position of the first information is a fixed continuous time unit.

[0271] In combination with some embodiments of the fourth aspect, in some embodiments, the first offset value is a fixed offset value or the first offset value can be configured.

[0272] In combination with some embodiments of the fourth aspect, in some embodiments, the pattern of the first information within a period is a fixed pattern.

[0273] In combination with some embodiments of the fourth aspect, in some embodiments, the terminator of the first information is a fixed symbol.

[0274] In combination with some embodiments of the fourth aspect, in some embodiments, when the first information includes a first synchronization signal and a first preamble code, there is a first time interval between the first synchronization signal and the first preamble code, and / or there is a second offset in the time domain between the first synchronization signal and the first preamble code.

[0275] In conjunction with some embodiments of the fourth aspect, in some embodiments, the first time interval and / or the second offset is determined by at least one of the following methods:

[0276] Determine the first time interval and / or the second offset based on a protocol agreement;

[0277] When the first device is not a network device, the first time interval and / or the second offset configured by the network device is received.

[0278] In conjunction with some embodiments of the fourth aspect, in some embodiments, the first device is further configured to:

[0279] The first time interval and / or the second offset are configured to at least one second device.

[0280] In combination with some embodiments of the fourth aspect, in some embodiments, the first time interval is greater than or not less than a first value, and the second offset is greater than or not less than a second value.

[0281] In conjunction with some embodiments of the fourth aspect, in some embodiments, a method for determining the first value and / or the second value includes at least one of the following:

[0282] Determine the first value and / or the second value based on a protocol agreement;

[0283] Receive the first value and / or the second value reported by the second device.

[0284] In conjunction with some embodiments of the fourth aspect, in some embodiments, sending the first information includes at least one of the following:

[0285] periodically sending the first information;

[0286] The first information is sent aperiodically.

[0287] With reference to some embodiments of the fourth aspect, in some embodiments, the periodically sending the first information includes:

[0288] The first information is periodically sent within a first time period.

[0289] In conjunction with some embodiments of the fourth aspect, in some embodiments, the method for determining the first duration includes at least one of the following:

[0290] Determining the first duration based on the agreement;

[0291] receiving the first duration reported by the second device;

[0292] When the first device is a network device, receiving the first duration reported by the terminal;

[0293] When the first device is a terminal, receiving the first duration configured by a network device;

[0294] With reference to some embodiments of the fourth aspect, in some embodiments, the aperiodic sending of the first information includes:

[0295] Before scheduling a service to the second device, the first device sends the first information;

[0296] After the first device triggers a service to the second device, the first device sends the first information;

[0297] The first information sent before scheduling a service is the same as or different from the first information sent after triggering a service.

[0298] In conjunction with some embodiments of the fourth aspect, in some embodiments, before the first device schedules a service to the second device, sending the first information includes:

[0299] Determine a second time interval and / or a third value; wherein the second time interval is: the time interval between the time when the first information is sent and the time when the first device schedules the service, and the third value is the number of first information required to be sent before scheduling the service;

[0300] Before the first device schedules a service to the second device, the first information is sent based on the second time interval and / or the third value.

[0301] In conjunction with some embodiments of the fourth aspect, in some embodiments, determining the second time interval and / or the third value includes at least one of the following:

[0302] Determining the second time interval and / or the third value based on protocol agreement;

[0303] Receive the second time interval and / or third value reported by the second device.

[0304] In a fifth aspect, an embodiment of the present disclosure provides a second device, including:

[0305] a processing module, configured to determine a first transmission parameter, where the first transmission parameter is a parameter used to determine a time-frequency resource for transmitting first information, and the first information is used for time domain and / or frequency domain synchronization between the first device and the second device;

[0306] A transceiver module is used to receive the first information sent by the first device based on the first transmission parameter.

[0307] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first information includes at least one of the following:

[0308] a first synchronization signal;

[0309] First preamble.

[0310] 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.

[0311] With reference to some embodiments of the fifth aspect, in some embodiments, determining the first transmission parameter includes at least one of the following:

[0312] Determining the first transmission parameter based on protocol agreement;

[0313] receiving the first transmission parameter configured by the first device;

[0314] The first transmission parameter is determined based on a production setting of the second device.

[0315] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first transmission parameter includes at least one of the following:

[0316] The frequency domain bandwidth of the first information;

[0317] The central frequency of the first information;

[0318] a period of the first information;

[0319] The time domain length of the first information;

[0320] the time domain position of the first information;

[0321] a first offset value corresponding to the first information, the first offset value being used to indicate, when a process of sending the first information by the first device is performed independently from a first transmission process of the first device, an offset between the first information and second information in the first transmission process;

[0322] a pattern of the first information within a period;

[0323] The terminator of the first information.

[0324] In conjunction with some embodiments of the fifth aspect, in some embodiments, the frequency domain bandwidth of the first information satisfies at least one of the following:

[0325] The frequency domain bandwidth of the first information is the same as the frequency domain bandwidth of the first signaling or the first channel; the first signaling is downlink signaling sent by the first device to the second device, and the first channel is a downlink channel sent by the first device to the second device;

[0326] The frequency domain bandwidth of the first information is a fixed bandwidth;

[0327] The frequency domain bandwidth of the first information can be configured.

[0328] In conjunction with some embodiments of the fifth aspect, in some embodiments, the central frequency of the first information satisfies at least one of the following:

[0329] The center frequency of the first information is the same as the center frequency of the first signal, the first channel, or the initial bandwidth part BWP; the first signal is a downlink signal sent by the first device to the second device, and the first channel is a downlink channel sent by the first device to the second device;

[0330] The center frequency of the first information is the same as the lower edge of the bandwidth of the first signal, the first channel, or the initial BWP;

[0331] The center frequency of the first information is the same as the upper edge of the bandwidth of the first signal, the first channel, or the initial BWP;

[0332] The center frequency of the first channel is Point A;

[0333] The center frequency of the first channel is a fixed frequency.

[0334] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first channel includes at least one of the following:

[0335] A-IoT physical downlink control channel PDCCH;

[0336] A-IoT physical downlink shared channel PDSCH;

[0337] A-IoT physical uplink shared channel PUSCH;

[0338] A-IoT physical uplink control channel PUCCH;

[0339] A-IoT data control channel.

[0340] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first signal includes at least one of the following:

[0341] Synchronization signal block SSB;

[0342] a second signal, wherein the second signal is used to stimulate the second device to perform backscattering;

[0343] A third signal is used to charge the second device.

[0344] In combination with some embodiments of the fifth aspect, in some embodiments, the period of the first information is a fixed period or the period of the first information can be configured.

[0345] In combination with some embodiments of the fifth aspect, in some embodiments, the period of the first information is the same as the period of the first communication operation; or, the period of the first information is the same as the period of the first scheduling; wherein, the first communication operation is the communication operation performed by the first device on the second device, and the first scheduling is the scheduling of the first device on the second device.

[0346] In combination with some embodiments of the fifth aspect, in some embodiments, the time domain length of the first information is a fixed time domain length or the time domain length of the first information can be configured.

[0347] In conjunction with some embodiments of the fifth aspect, in some embodiments, the time domain position of the first information satisfies at least one of the following conditions:

[0348] The time domain position of the first information is a fixed time unit;

[0349] The time domain position of the first information is a configurable time unit;

[0350] The time domain position of the first information is a configurable non-continuous time unit;

[0351] The time domain position of the first information is a configurable continuous time unit;

[0352] The time domain position of the first information is a fixed non-continuous time unit;

[0353] The time domain position of the first information is a fixed continuous time unit.

[0354] In combination with some embodiments of the fifth aspect, in some embodiments, the first offset value is a fixed offset value or the first offset value can be configured.

[0355] In combination with some embodiments of the fifth aspect, in some embodiments, the pattern of the first information within a period is a fixed pattern.

[0356] In combination with some embodiments of the fifth aspect, in some embodiments, the terminator of the first information is a fixed symbol.

[0357] In combination with some embodiments of the fifth aspect, in some embodiments, when the first information includes a first synchronization signal and a first preamble code, there is a first time interval between the first synchronization signal and the first preamble code, and / or there is a second offset in the time domain between the first synchronization signal and the first preamble code.

[0358] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first time interval and / or the second offset is determined by at least one of the following methods:

[0359] Determine the first time interval and / or the second offset based on a protocol agreement;

[0360] receiving the first time interval and / or the second offset configured by a first device;

[0361] The first time interval and / or the second offset are determined based on a production setting of the second device.

[0362] In combination with some embodiments of the fifth aspect, in some embodiments, the first time interval is greater than or not less than a first value, and the second offset is greater than or not less than a second value.

[0363] In conjunction with some embodiments of the fifth aspect, in some embodiments, a method for determining the first value and / or the second value includes at least one of the following:

[0364] Determine the first value and / or the second value based on a protocol agreement;

[0365] The first value and / or the second value are determined based on a production setting of the second device.

[0366] In conjunction with some embodiments of the fifth aspect, in some embodiments, the second device is further configured to:

[0367] Report the first value and / or the second value corresponding to the second device to the first device.

[0368] In conjunction with some embodiments of the fifth aspect, in some embodiments, receiving the first information sent by the first device includes at least one of the following:

[0369] receiving the first information periodically sent by the first device;

[0370] Receive the first information aperiodically sent by the first device.

[0371] With reference to some embodiments of the fifth aspect, in some embodiments, the receiving the first information periodically sent by the first device includes:

[0372] Receive the first information periodically sent by the first device within a first time period.

[0373] With reference to some embodiments of the fifth aspect, in some embodiments, the first duration is agreed upon by an agreement;

[0374] The method further comprises:

[0375] Report the first duration to the first device.

[0376] In conjunction with some embodiments of the fifth aspect, in some embodiments, the receiving the first information aperiodically sent by the first device includes:

[0377] receiving the first information sent by the first device before scheduling a service to the second device;

[0378] receiving the first information sent by the first device after triggering a service to the second device;

[0379] The first information sent before scheduling a service is the same as or different from the first information sent after triggering a service.

[0380] In combination with some embodiments of the fifth aspect, in some embodiments, the first information sent by the first device before scheduling a service to the second device satisfies a second time interval and / or a third value; wherein, the second time interval is: the time interval between the sending time of the first information and the time when the first device schedules the service, and the third value is the number of the first information required to be sent before scheduling the service.

[0381] With reference to some embodiments of the fifth aspect, in some embodiments, the second time interval and / or the third value are agreed upon by a protocol;

[0382] The method further comprises:

[0383] Report the second time interval and / or the third value to the first device.

[0384] 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.

[0385] 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.

[0386] 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.

[0387] 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.

[0388] 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.

[0389] 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.

[0390] 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.

[0391] 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.

[0392] 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.

[0393] 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.

[0394] 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.

[0395] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0396] 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.

[0397] 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.

[0398] 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.

[0399] 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.

[0400] 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.

[0401] 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.

[0402] 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.

[0403] 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.

[0404] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0405] 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.

[0406] 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.

[0407] 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.

[0408] 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.

[0409] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0410] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0411] 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.

[0412] The correspondences shown in the tables of the present disclosure can be configured or predefined. The values ​​of the information in each table are merely examples and can be configured to other values, which are not limited by the present disclosure. When configuring the correspondences between information and parameters, it is not necessarily required to configure all the correspondences shown in each table. For example, in the tables of 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 adopt other names that can be understood by the communication device, and the values ​​or representations of the parameters may also adopt 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.

[0413] The predefined in the present disclosure may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

[0414] 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.

[0415] 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.

[0416] 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.

[0417] 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.

[0418] 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.

[0419] 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).

[0420] 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.

[0421] 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.

[0422] 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).

[0423] 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.

[0424] 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.

[0425] 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.

[0426] 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.

[0427] Optionally, there are multiple different types of the above-mentioned A-IoT devices, and different types of A-IoT devices correspond to different capabilities.

[0428] 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.

[0429] 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.

[0430] 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)).

[0431] 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.

[0432] 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.

[0433] 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.

[0434] 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.

[0435] 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 domain and / or frequency domain synchronization between the first device and the A-IoT device. Optionally, there are currently three potential solutions for achieving time domain and / or frequency domain synchronization between the first device and the A-IoT device:

[0436] The first type: When the first device sends a command to the A-IoT device, it attaches a "preamble" to the command. The preamble can carry time domain and / or frequency domain synchronization information. The A-IoT device can achieve time domain and / or frequency domain synchronization with the first device based on the time domain and / or frequency domain synchronization information carried by the preamble. In some embodiments, the preamble used to achieve time domain and / or frequency domain 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.

[0437] The second type: an A-IoT synchronization signal is introduced 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 (Synchronization Signal, SS) can carry time domain and / or frequency domain synchronization information. The A-IoT device can achieve time domain and / or frequency domain synchronization with the first device based on the time domain and / or frequency domain 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 is not limited in this disclosure. In addition, the transmission process of the A-IoT synchronization signal can be relatively independent of other transmission processes between the first device and the second device.

[0438] 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 domain and / or frequency domain synchronization with the first device.

[0439] However, the following issues still need to be addressed regarding A-SS and A-preamble:

[0440] How to configure the time domain resources and frequency domain resources of A-SS and A-preamble;

[0441] How to determine the sending method of A-SS;

[0442] When A-preamble and A-SS are sent together, how do I determine the configuration relationship between the A-SS and A-preamble?

[0443] Based on this, the present disclosure provides a communication method for solving the above problems.

[0444] 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:

[0445] Step 2101: The first device determines a first transmission parameter.

[0446] 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.

[0447] 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.

[0448] Optionally, the above-mentioned first transmission parameter may be: a parameter used to determine the time and frequency resources for transmitting the first information. Optionally, the first information may be used for time domain and / or frequency domain synchronization between the first device and the second device. For example, the first information may carry time domain and / or frequency domain synchronization information, and after the second device receives the first information, it may achieve time domain and / or frequency domain synchronization with the first device based on the time domain and / or frequency domain synchronization information carried by the first information.

[0449] 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.

[0450] Optionally, in some embodiments, the above-mentioned first transmission parameter may be agreed upon by a protocol, or, when the above-mentioned first device is not the network device shown in Figures 1B-1F, such as, when the first device is a terminal or intermediate node or UE or auxiliary node shown in Figures 1B-1F, the first transmission parameter may be configured by the network device to the first device, for example, the network device may configure the first transmission parameter to the first device through a second signaling, and the second signaling may include at least one of a downlink control indicator (DCI) signaling, a medium access control control element (MAC CE) signaling, and a radio resource control (RRC) signaling. Alternatively, in other embodiments, the first device may also have other determination methods to determine the first transmission parameter, which is not specifically limited in this disclosure.

[0451] Optionally, in some embodiments, the first transmission parameter may include at least one of the following:

[0452] The frequency domain bandwidth of the first information;

[0453] The center frequency point of the first information (or referred to as the reference frequency point);

[0454] The cycle of the first information;

[0455] The time domain length of the first information;

[0456] The time domain position of the first information;

[0457] a first offset value corresponding to the first information;

[0458] a pattern of the first information within the period;

[0459] The terminator of the first message.

[0460] Optionally, the aforementioned “frequency domain bandwidth and / or center frequency of the first information” may be used to determine the frequency domain position of the first information. In some embodiments, the aforementioned “frequency domain bandwidth of the first information” may satisfy at least one of the following:

[0461] The frequency domain bandwidth of the first information is the same as the frequency domain bandwidth of the first signaling or the first channel;

[0462] The frequency domain bandwidth of the first information is a fixed bandwidth;

[0463] The frequency domain bandwidth of the first information can be configured.

[0464] Optionally, the first signaling may be downlink signaling sent from the first device to the second device. The first signaling may be, for example, downlink control signaling, downlink control data signaling (i.e., downlink control signaling carrying data), downlink data signaling, etc. The first channel may be a downlink channel (or data channel) sent from the first device to the second device. The first channel may include, for example, at least one of the following:

[0465] A-IoT Physical Downlink Control Channel (PDCCH);

[0466] A-IoT Physical Downlink Shared Channel (PDSCH);

[0467] A-IoT Physical Uplink Shared Channel (PUSCH);

[0468] A-IoT Physical Uplink Control Channel (PUCCH);

[0469] A-IoT data control channel.

[0470] Optionally, the “central frequency point of the first information” may satisfy at least one of the following:

[0471] The center frequency of the first information is the same as the center frequency of the first signal, the first channel, or the initial bandwidth part (BWP);

[0472] The center frequency of the first information is the same as the lower edge of the bandwidth of the first signal, the first channel, or the initial BWP;

[0473] The center frequency of the first information is the same as the upper edge of the bandwidth of the first signal, the first channel, or the initial BWP;

[0474] The center frequency of the first channel is Point A;

[0475] The center frequency of the first channel is a fixed frequency.

[0476] For a detailed introduction to the first channel, please refer to the aforementioned description. The aforementioned “first signal” may be a downlink signal sent from the first device to the second device. The first signal may be, for example, a synchronization signal block (SSB), a second signal, or a third signal. Optionally, the second signal may be used to excite the second device to perform backscattering. For example, the second signal may be the CW signal described above in the embodiment of FIG. 2A . The third signal may be used, for example, to charge the second device. That is, the third signal may be a charging signal for the second device. For example, the third signal may be an energy source (ES) signal.

[0477] Optionally, the above-mentioned Point A can be a common reference point of the resource block grid; optionally, the "lowest (small) subcarrier spacing (SCS) (SCS#0) relative to all subcarrier spacing common resource blocks (CRB) #0" is usually referred to as Point A, for example: "Point A" can be located at subcarrier position 0 of common resource block #0 (CRB#0).

[0478] Optionally, the above-mentioned “fixed frequency points” may have N, for example, where N is greater than or equal to 1, and N may be agreed upon in a protocol.

[0479] Optionally, the aforementioned “period of the first information may be a fixed period or the period of the first information may be configurable (i.e., the period of the first information is a configurable period)”. Optionally, the period of the first information may be called, for example, an A-SS period or an A-preamble period, or may be called another name, which is not specifically limited in this disclosure.

[0480] Optionally, in some embodiments, the period of the first information may be the same as the period of the first communication operation; optionally, the first communication operation may be a communication operation performed by the first device on the second device, for example, the first communication operation may be an inventory operation. That is, the period of the first information may be the same as the inventory period, wherein multiple inventory services may be triggered during a single inventory period. Optionally, in other embodiments, the period of the first information may be the same as the period of the first schedule; optionally, the first schedule may be a schedule performed by the first device on the second device, for example, the first schedule may be an inventory schedule used to schedule inventory services. In this case, the period of the first information may be the same as the period of an inventory schedule, wherein multiple inventory schedules may be triggered during a single inventory schedule period.

[0481] In some embodiments, by determining the period of the first information, the second devices covered by the first information sent within the period can all receive the first information and can be in a time domain and / or frequency domain synchronization state with the first device based on the first information, so that the first device can randomly schedule these second devices, thereby ensuring the stability and efficiency of communication between the first device and the second device.

[0482] Optionally, the above-mentioned "time domain length of the first information" can be a fixed time domain length or the "time domain length of the first information" can be configurable (that is, the "time domain length of the first information" is a configurable time domain length). Optionally, the time domain length of the first information can be called A-SS duration or A-preamble duration, etc., or can be called other names, which is not specifically limited in this disclosure.

[0483] Optionally, the above-mentioned “time domain position of the first information” may satisfy at least one of the following conditions:

[0484] The time domain position of the first information is a fixed time unit;

[0485] The time domain position of the first information is a configurable time unit;

[0486] The time domain position of the first information is a configurable non-continuous time unit;

[0487] The time domain position of the first information is a continuous time unit that can be configured;

[0488] The time domain position of the first information is a fixed non-continuous time unit;

[0489] The time domain position of the first information is a fixed continuous time unit.

[0490] It should be noted that, in some embodiments, the aforementioned "time domain position of the first information" may be referred to as, for example, the position of a time unit of the first information. The time unit may include, for example, a radio frame, a time slot, a time domain symbol, or other time units, and this disclosure does not limit this. Furthermore, in some embodiments, when the time domain position of the first information is the "radio frame position of the first information," the "radio frame position of the first information" may be at least one of the first half of a fixed radio frame, the second half of a fixed radio frame, the first half of a configurable radio frame (i.e., the first half of a configurable radio frame), or the second half of a configurable radio frame (i.e., the second half of a configurable radio frame). In other embodiments, when the time domain position of the first information is the "time slot position of the first information," the "time slot position of the first information" may be at least one of a configurable non-contiguous time slot, a configurable continuous time slot, a configurable time slot pattern, a fixed non-contiguous time slot, a fixed continuous time slot, or a fixed time slot pattern. In some further embodiments, when the time domain position of the first information is the "time domain symbol position of the first information", the "time domain symbol position of the first information" can be at least one of a configurable discontinuous time domain symbol, a configurable continuous time domain symbol, a configurable time domain symbol pattern, a fixed discontinuous time domain symbol, a fixed continuous time domain symbol, and a fixed time domain symbol pattern.

[0491] Optionally, the aforementioned "first offset value" may be used to indicate the offset between the first information and the second information in the first transmission process, when the first device transmits the first information independently of the first device's first transmission process. Optionally, the first transmission process may be the process of the first device transmitting the second information to the second device, where the second information may be any information other than the first information. The second information may include at least one of a second signal, a third signal, downlink control signaling, downlink data signaling, and downlink control data signaling. For detailed descriptions of the second and third signals, please refer to the descriptions of the above embodiments. Furthermore, in some embodiments, with respect to the first transmission process, when the first information is the aforementioned first synchronization signal, the first device transmitting the first information may be independent of the first transmission process; when the first information is the aforementioned first preamble, the first device transmitting the first information may be concurrent with the first transmission process. In this case, the first preamble may be appended before the second information to be transmitted in the first transmission process.

[0492] Optionally, the above-mentioned “first offset value” may be a fixed offset value or the “first offset value” may be configurable (ie, the first offset value is a configurable offset value).

[0493] Optionally, the aforementioned “pattern of the first information within a period” may be a fixed pattern.

[0494] Optionally, the “terminator of the first information” may be a fixed symbol. In some embodiments, when the second device receives the first information and detects the fixed symbol, it may be considered that the end position of the first information has been reached.

[0495] Step 2102: The first device configures a first transmission parameter for the second device.

[0496] Optionally, in some embodiments, when the first device is the network device in Figures 1B-1E, the first device configures the first transmission parameter to the second device. Optionally, the first device may dynamically and / or semi-statically configure the first transmission parameter to the second device.

[0497] Step 2103: The second device determines a first transmission parameter.

[0498] For a detailed description of the first transmission parameter, please refer to the above embodiment description.

[0499] Optionally, in some embodiments, the second device may determine the first transmission parameter based on a protocol agreement, or the second device may receive the first transmission parameter configured by the first device (such as a dynamic configuration and / or a semi-static configuration). Alternatively, when the second device is produced, the first transmission parameter corresponding to the second device may be set (such as burned) on the second device. In this case, the second device can determine the first transmission parameter corresponding to the second device based on its own production settings. Furthermore, in some embodiments, when the first transmission parameter corresponding to the second device is set (such as burned) on the second device, the second device may also report the first transmission parameter corresponding to the second device to the first device, so that the first device can know the first transmission parameter corresponding to the second device based on the report of the second device.

[0500] Step 2104: The first device sends first information to at least one second device based on the first transmission parameter.

[0501] For a detailed introduction to the first device, the first transmission parameter, the second device, and the first information, please refer to the above step descriptions.

[0502] In some embodiments, the first device can determine at least one of the frequency domain bandwidth, center frequency, period, time domain length, time domain position, first offset value with other transmissions (i.e., the aforementioned first transmission process), pattern within the period, and terminator of the first information based on the first transmission parameters, and send the first information based on the determined relevant content.

[0503] Optionally, as can be seen from the foregoing, when the first information is the aforementioned first synchronization signal, the process of the first device sending the first information is independent of the first transmission process of the first device (i.e., other transmission processes of the first device). Based on this, the first device can send the first information to the at least one second device periodically or aperiodically.

[0504] Optionally, in some embodiments, the first device may, for example, periodically send the first information within a first duration. Optionally, the first duration may be agreed upon by a protocol, or the first duration may be reported by the second device, or, when the first device is the network device in Figures 1B-1E above, the first duration may be reported by the terminal or UE, or, when the first device is the terminal or UE or intermediate node or auxiliary node in Figures 1C-1F above, the first duration may be configured by the network device.

[0505] Optionally, in some other embodiments, the first device may send the first information non-periodically. For example, in some embodiments, when the first device sends the first information non-periodically, the first information may be sent before the first device schedules a service to the second device; and the first information may be sent again after the first device triggers a service to the second device. Optionally, the first information sent before scheduling the service may be the same as or different from the first information sent after triggering the service. For example, the density of the first information sent before scheduling the service may be less than the density of the first information sent after triggering the service. The specific reason is: before the first device schedules the service, the first device may not have communicated with the second device. At this time, the degree of desynchronization between the first device and the second device is relatively large, and it is necessary to send more dense first information so that the first device and the second device can accurately perform time domain and / or frequency domain synchronization based on the dense first information. Also, when the first device triggers the service, it means that the first device and the second device have communicated. In this case, even if the first device and the second device are still out of sync with each other, since the two have communicated several times, the degree of desynchronization between the two will be relatively small. At this time, the first device can send less dense first information, which is also sufficient to achieve time domain and / or frequency domain synchronization between the first device and the second device, and there is no need to send dense first information, thereby saving communication resources.

[0506] Furthermore, in some embodiments, when the first device sends the first information after triggering the service, the device may send one piece of first information after sending M first signalings, M first signals, or M first channels. For a detailed description of the first signalings, first signals, and first channels, refer to the above step description.

[0507] Furthermore, in some embodiments, the first information sent by the first device before scheduling a service may meet a second time interval and / or a third value. The second time interval may be the time interval between the time the first information is sent and the time the first device schedules the service, and the third value may be the number of first information messages required to be sent before scheduling the service. That is, when the first device sends the first information before scheduling a service, the time interval between the time the first information is sent and the time the first device subsequently schedules the service must be greater than or equal to the second time interval, and the number of first information messages sent by the first device before scheduling the service must be greater than or equal to the third value. By ensuring a longer time interval between the first information sent before scheduling a service and the scheduled service, the first information is prevented from affecting the scheduling of the service. Furthermore, the present disclosure also ensures that the number of first information messages sent before scheduling a service meets a certain value, thereby ensuring the density of the first information sent before scheduling the service. This allows for precise time and / or frequency domain synchronization between the first and second devices before scheduling the service, thereby ensuring communication accuracy and efficiency between the first and second devices when they subsequently conduct business.

[0508] Optionally, in some embodiments, the second time interval and / or third value may be agreed upon by a protocol, or may be reported by the second device.

[0509] Furthermore, in some embodiments, when the first information includes a first synchronization signal and a first preamble code, it indicates that the first device sends the first synchronization signal and the first preamble code in combination, that is, the first device uses the third method described before the embodiment of Figure 2A to send the first information. At this time, there may be a first time interval between the first synchronization signal and the first preamble code sent by the first device, and / or there is a second offset in the time domain between the first synchronization signal and the first preamble code sent by the first device, thereby ensuring that there is sufficient interval between the first synchronization signal and the first preamble code, preventing mutual interference between the first synchronization signal and the first preamble code, and ensuring that the second device can accurately receive the first synchronization signal and the first preamble code, thereby facilitating the second device to accurately perform time domain and / or frequency domain synchronization with the first device in combination with the received first synchronization signal and first preamble code, thereby ensuring the accuracy of time domain and / or frequency domain synchronization.

[0510] Optionally, the first time interval and / or the second offset may be agreed upon by a protocol, or, when the first device is not the network device in Figures 1B-1F, such as, when the first device is a terminal, UE, intermediate node, or auxiliary node in Figures 1B-1F, the first time interval and / or the second offset may be configured by the network device to the first device, for example, the network device may configure the first time interval and / or the second offset to the first device through a second signaling, and the second signaling may include, for example, at least one of DCI signaling, MAC CE signaling, and RRC signaling. Alternatively, in some embodiments, when the first device is the network device in Figures 1B-1F, after the first device determines the first time interval and / or the second offset, the first device may further configure (such as dynamically configure and / or semi-statically configure) the first time interval and / or the second offset to the second device, so that the second device may receive the first synchronization signal and the first preamble based on the first time interval and / or the second offset.

[0511] Furthermore, in some embodiments, the first time interval may be greater than or not less than a first value, and the second offset may be greater than or not less than a second value. The first value and / or the second value may be agreed upon by a protocol, or may be reported by the second device.

[0512] Optionally, in some embodiments, after the first device sends the first information based on the first transmission parameter, the second device may receive the first information based on the first transmission parameter. Specifically, the second device may determine at least one of the frequency domain bandwidth, center frequency, period, time domain length, time domain position, first offset value with other transmissions (i.e., the aforementioned first transmission process), pattern within the period, and terminator of the first information based on the first transmission parameter, and receive the first information based on the determined related content.

[0513] It should be noted that, in some embodiments, if the first information is sent periodically, the second device can receive the first information sent periodically by the first device within the first time period. Optionally, for the second device, the first time period may be agreed upon by the protocol, or configured by the first device (such as dynamic configuration and / or semi-static configuration), or, when the first device is not the network device in Figures 1B-1F, the first time period may be configured by the network device to the second device. In addition, in some embodiments, the first time period may also be set (such as burned) to the second device when the second device is produced. In this case, the second device can determine the first time period based on its own production settings, and after the second device determines the first set time period, it can also report the first time period to the first device. In addition, for other detailed introductions on this part, please refer to the above content.

[0514] Optionally, in some other embodiments, if the first information is sent non-periodically, the second device may receive the first information sent by the first device before the scheduling service, and receive the first information sent by the first device after the triggering service. Optionally, when the second device receives the first information sent by the first device before the scheduling service, it may receive the first information based on the above-mentioned second time interval and / or third value. Optionally, for the second device, the second time interval and / or third value may be agreed upon by the protocol, or configured by the first device (such as dynamic configuration and / or semi-static configuration), or the second time interval and / or third value may also be set (such as burned) to the second device when the second device is produced. In this case, the second device can determine the second time interval and / or third value based on its own production settings, and after the second device determines the second time interval and / or third value, it can also report the second time interval and / or third value to the first device. And, for other detailed introductions on this part, please refer to the above content.

[0515] Optionally, in some other embodiments, if the first information includes a first synchronization signal and a first preamble, the second device may receive the first synchronization signal and the first preamble based on the first time interval and / or the second offset. Optionally, for the second device, the first time interval and / or the second offset may be agreed upon by the protocol, or the first time interval and / or the second offset may be set (such as burned) on the second device when the second device is produced, and after the second device determines the first time interval and / or the second offset, it may also report the first time interval and / or the second offset to the first device, or the first time interval and / or the second offset may be configured by the first device (such as dynamically configured and / or semi-statically configured) to the second device; or, when the first device is not the network device in Figures 1B-1F, the first time interval and / or the second offset may be configured by the network device to the second device. And, for other detailed introductions on this part, please refer to the above content.

[0516] In the above embodiment, the first device will determine the first transmission parameter and send the first information to at least one second device based on the first transmission parameter. The first transmission parameter is a parameter used to determine the time-frequency resource for the transmission of the first information. The first information is used for the first device and the second device to synchronize the time domain and / or frequency domain. The second device is a device that communicates based on the collected energy, such as an environmental Internet of Things device. It can be seen that in the method disclosed herein, the first transmission parameter corresponding to the time domain and / or frequency domain 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 determine the time-frequency resource for the transmission of the first information based on the first transmission parameter, and successfully send the time domain and / or frequency domain synchronization information to the second device based on the time-frequency resource, thereby ensuring the successful transmission of the time domain and / or frequency domain synchronization information between the first device and the second device, and ensuring the time domain and / or frequency domain synchronization between the first device and the second device.

[0517] 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.

[0518] 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.

[0519] FIG3A is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG3A , the present disclosure embodiment relates to a communication method for a first device, the method comprising:

[0520] Step 3101: Determine a first transmission parameter.

[0521] Step 3102: Configure the first transmission parameter.

[0522] Step 3103: Send first information based on the first transmission parameter.

[0523] For a detailed description of steps 3101-3103, please refer to the above embodiment description.

[0524] 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.

[0525] 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.

[0526] 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:

[0527] Step 3201: Determine a first transmission parameter.

[0528] Step 3202: Send first information to at least one second device based on the first transmission parameter.

[0529] Optionally, the first transmission parameter is a parameter used to determine a time-frequency resource for transmitting the first information, the first information is used for time domain and / or frequency domain synchronization between the first device and the second device, and the second device is: a device that communicates based on collected energy;

[0530] Optionally, the first information includes at least one of the following:

[0531] a first synchronization signal;

[0532] First preamble.

[0533] 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.

[0534] Optionally, determining the first transmission parameter includes at least one of the following:

[0535] Determining the first transmission parameter based on protocol agreement;

[0536] When the first device is not a network device, the first transmission parameter configured by the network device is received.

[0537] Optionally, the method further includes:

[0538] The first transmission parameter is configured to at least one second device.

[0539] Optionally, the first transmission parameter includes at least one of the following:

[0540] The frequency domain bandwidth of the first information;

[0541] The central frequency of the first information;

[0542] a period of the first information;

[0543] The time domain length of the first information;

[0544] the time domain position of the first information;

[0545] a first offset value corresponding to the first information, the first offset value being used to indicate, when a process of sending the first information by the first device is performed independently from a first transmission process of the first device, an offset between the first information and second information in the first transmission process;

[0546] a pattern of the first information within a period;

[0547] The terminator of the first information.

[0548] Optionally, the frequency domain bandwidth of the first information satisfies at least one of the following:

[0549] The frequency domain bandwidth of the first information is the same as the frequency domain bandwidth of the first signaling or the first channel; the first signaling is downlink signaling sent by the first device to the second device, and the first channel is a downlink channel sent by the first device to the second device;

[0550] The frequency domain bandwidth of the first information is a fixed bandwidth;

[0551] The frequency domain bandwidth of the first information can be configured.

[0552] Optionally, the center frequency of the first information satisfies at least one of the following:

[0553] The center frequency of the first information is the same as the center frequency of the first signal, the first channel, or the initial bandwidth part BWP; the first signal is a downlink signal sent by the first device to the second device, and the first channel is a downlink channel sent by the first device to the second device;

[0554] The center frequency of the first information is the same as the lower edge of the bandwidth of the first signal, the first channel, or the initial BWP;

[0555] The center frequency of the first information is the same as the upper edge of the bandwidth of the first signal, the first channel, or the initial BWP;

[0556] The center frequency of the first channel is Point A;

[0557] The center frequency of the first channel is a fixed frequency.

[0558] Optionally, the first channel includes at least one of the following:

[0559] A-IoT physical downlink control channel PDCCH;

[0560] A-IoT physical downlink shared channel PDSCH;

[0561] A-IoT physical uplink shared channel PUSCH;

[0562] A-IoT physical uplink control channel PUCCH;

[0563] A-IoT data control channel.

[0564] Optionally, the first signal includes at least one of the following:

[0565] Synchronization signal block SSB;

[0566] a second signal, wherein the second signal is used to stimulate the second device to perform backscattering;

[0567] A third signal is used to charge the second device.

[0568] Optionally, the period of the first information is a fixed period or the period of the first information is configurable.

[0569] Optionally, the period of the first information is the same as the period of the first communication operation; or, the period of the first information is the same as the period of the first scheduling; wherein, the first communication operation is the communication operation performed by the first device on the second device, and the first scheduling is the scheduling of the first device on the second device.

[0570] Optionally, the time domain length of the first information is a fixed time domain length or the time domain length of the first information is configurable.

[0571] Optionally, the time domain position of the first information satisfies at least one of the following conditions:

[0572] The time domain position of the first information is a fixed time unit;

[0573] The time domain position of the first information is a configurable time unit;

[0574] The time domain position of the first information is a configurable non-continuous time unit;

[0575] The time domain position of the first information is a configurable continuous time unit;

[0576] The time domain position of the first information is a fixed non-continuous time unit;

[0577] The time domain position of the first information is a fixed continuous time unit.

[0578] Optionally, the first offset value is a fixed offset value or the first offset value is configurable.

[0579] Optionally, the pattern of the first information within a period is a fixed pattern.

[0580] Optionally, the terminator of the first information is a fixed symbol.

[0581] Optionally, when the first information includes a first synchronization signal and a first preamble code, there is a first time interval between the first synchronization signal and the first preamble code, and / or there is a second offset in the time domain between the first synchronization signal and the first preamble code.

[0582] Optionally, the first time interval and / or the second offset is determined by at least one of the following methods:

[0583] Determine the first time interval and / or the second offset based on a protocol agreement;

[0584] When the first device is not a network device, the first time interval and / or the second offset configured by the network device is received.

[0585] Optionally, the method further includes:

[0586] The first time interval and / or the second offset are configured to at least one second device.

[0587] Optionally, the first time interval is greater than or not less than a first value, and the second offset is greater than or not less than a second value.

[0588] Optionally, a method for determining the first value and / or the second value includes at least one of the following:

[0589] Determine the first value and / or the second value based on a protocol agreement;

[0590] Receive the first value and / or the second value reported by the second device.

[0591] Optionally, the sending of the first information includes at least one of the following:

[0592] periodically sending the first information;

[0593] The first information is sent aperiodically.

[0594] Optionally, the periodically sending the first information includes:

[0595] The first information is periodically sent within a first time period.

[0596] Optionally, the method for determining the first duration includes at least one of the following:

[0597] Determining the first duration based on the agreement;

[0598] receiving the first duration reported by the second device;

[0599] When the first device is a network device, receiving the first duration reported by the terminal;

[0600] When the first device is a terminal, receiving the first duration configured by a network device;

[0601] Optionally, the aperiodic sending of the first information includes:

[0602] Before scheduling a service to the second device, the first device sends the first information;

[0603] After the first device triggers a service to the second device, the first device sends the first information;

[0604] The first information sent before scheduling a service is the same as or different from the first information sent after triggering a service.

[0605] Optionally, before the first device schedules a service to the second device, sending the first information includes:

[0606] Determine a second time interval and / or a third value; wherein the second time interval is: the time interval between the time when the first information is sent and the time when the first device schedules the service, and the third value is the number of first information required to be sent before scheduling the service;

[0607] Before the first device schedules a service to the second device, the first information is sent based on the second time interval and / or the third value.

[0608] Optionally, determining the second time interval and / or the third value includes at least one of the following:

[0609] Determining the second time interval and / or the third value based on protocol agreement;

[0610] Receive the second time interval and / or third value reported by the second device.

[0611] For a detailed description of steps 3201-3202, please refer to the above embodiment description.

[0612] 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.

[0613] 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.

[0614] 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:

[0615] Step 4101: Receive a first transmission parameter configured by a first device.

[0616] Step 4102: Determine a first transmission parameter.

[0617] Step 4103: Receive first information based on the first transmission parameter.

[0618] For a detailed description of steps 4101-4103, please refer to the above embodiment description.

[0619] 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.

[0620] 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.

[0621] 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:

[0622] Step 4201: Determine a first transmission parameter.

[0623] Step 4202: Receive first information sent by the first device based on the first transmission parameter.

[0624] Optionally, the first transmission parameter is a parameter used to determine a time-frequency resource for transmitting the first information, and the first information is used for time domain and / or frequency domain synchronization between the first device and the second device;

[0625] Optionally, the first information includes at least one of the following:

[0626] a first synchronization signal;

[0627] First preamble.

[0628] 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.

[0629] Optionally, determining the first transmission parameter includes at least one of the following:

[0630] Determining the first transmission parameter based on protocol agreement;

[0631] receiving the first transmission parameter configured by the first device;

[0632] The first transmission parameter is determined based on a production setting of the second device.

[0633] Optionally, the first transmission parameter includes at least one of the following:

[0634] The frequency domain bandwidth of the first information;

[0635] The central frequency of the first information;

[0636] a period of the first information;

[0637] The time domain length of the first information;

[0638] the time domain position of the first information;

[0639] a first offset value corresponding to the first information, the first offset value being used to indicate, when a process of sending the first information by the first device is performed independently from a first transmission process of the first device, an offset between the first information and second information in the first transmission process;

[0640] a pattern of the first information within a period;

[0641] The terminator of the first information.

[0642] Optionally, the frequency domain bandwidth of the first information satisfies at least one of the following:

[0643] The frequency domain bandwidth of the first information is the same as the frequency domain bandwidth of the first signaling or the first channel; the first signaling is downlink signaling sent by the first device to the second device, and the first channel is a downlink channel sent by the first device to the second device;

[0644] The frequency domain bandwidth of the first information is a fixed bandwidth;

[0645] The frequency domain bandwidth of the first information can be configured.

[0646] Optionally, the center frequency of the first information satisfies at least one of the following:

[0647] The center frequency of the first information is the same as the center frequency of the first signal, the first channel, or the initial bandwidth part BWP; the first signal is a downlink signal sent by the first device to the second device, and the first channel is a downlink channel sent by the first device to the second device;

[0648] The center frequency of the first information is the same as the lower edge of the bandwidth of the first signal, the first channel, or the initial BWP;

[0649] The center frequency of the first information is the same as the upper edge of the bandwidth of the first signal, the first channel, or the initial BWP;

[0650] The center frequency of the first channel is Point A;

[0651] The center frequency of the first channel is a fixed frequency.

[0652] Optionally, the first channel includes at least one of the following:

[0653] A-IoT physical downlink control channel PDCCH;

[0654] A-IoT physical downlink shared channel PDSCH;

[0655] A-IoT physical uplink shared channel PUSCH;

[0656] A-IoT physical uplink control channel PUCCH;

[0657] A-IoT data control channel.

[0658] Optionally, the first signal includes at least one of the following:

[0659] Synchronization signal block SSB;

[0660] a second signal, wherein the second signal is used to stimulate the second device to perform backscattering;

[0661] A third signal is used to charge the second device.

[0662] Optionally, the period of the first information is a fixed period or the period of the first information is configurable.

[0663] Optionally, the period of the first information is the same as the period of the first communication operation; or, the period of the first information is the same as the period of the first scheduling; wherein, the first communication operation is the communication operation performed by the first device on the second device, and the first scheduling is the scheduling of the first device on the second device.

[0664] Optionally, the time domain length of the first information is a fixed time domain length or the time domain length of the first information is configurable.

[0665] Optionally, the time domain position of the first information satisfies at least one of the following conditions:

[0666] The time domain position of the first information is a fixed time unit;

[0667] The time domain position of the first information is a configurable time unit;

[0668] The time domain position of the first information is a configurable non-continuous time unit;

[0669] The time domain position of the first information is a configurable continuous time unit;

[0670] The time domain position of the first information is a fixed non-continuous time unit;

[0671] The time domain position of the first information is a fixed continuous time unit.

[0672] Optionally, the first offset value is a fixed offset value or the first offset value is configurable.

[0673] Optionally, the pattern of the first information within a period is a fixed pattern.

[0674] Optionally, the terminator of the first information is a fixed symbol.

[0675] Optionally, when the first information includes a first synchronization signal and a first preamble code, there is a first time interval between the first synchronization signal and the first preamble code, and / or there is a second offset in the time domain between the first synchronization signal and the first preamble code.

[0676] Optionally, the first time interval and / or the second offset is determined by at least one of the following methods:

[0677] Determine the first time interval and / or the second offset based on a protocol agreement;

[0678] receiving the first time interval and / or the second offset configured by a first device;

[0679] The first time interval and / or the second offset are determined based on a production setting of the second device.

[0680] Optionally, the first time interval is greater than or not less than a first value, and the second offset is greater than or not less than a second value.

[0681] Optionally, a method for determining the first value and / or the second value includes at least one of the following:

[0682] Determine the first value and / or the second value based on a protocol agreement;

[0683] The first value and / or the second value are determined based on a production setting of the second device.

[0684] Optionally, the method further includes:

[0685] Report the first value and / or the second value corresponding to the second device to the first device.

[0686] Optionally, the receiving the first information sent by the first device includes at least one of the following:

[0687] receiving the first information periodically sent by the first device;

[0688] Receive the first information aperiodically sent by the first device.

[0689] Optionally, the receiving the first information periodically sent by the first device includes:

[0690] Receive the first information periodically sent by the first device within a first time period.

[0691] Optionally, the first duration is agreed upon by an agreement;

[0692] The method further comprises:

[0693] Report the first duration to the first device.

[0694] Optionally, the receiving the first information aperiodically sent by the first device includes:

[0695] receiving the first information sent by the first device before scheduling a service to the second device;

[0696] receiving the first information sent by the first device after triggering a service to the second device;

[0697] The first information sent before scheduling a service is the same as or different from the first information sent after triggering a service.

[0698] Optionally, the first information sent by the first device before scheduling a service to the second device satisfies a second time interval and / or a third value; wherein, the second time interval is: the time interval between the sending time of the first information and the time when the first device schedules the service, and the third value is the number of the first information required to be sent before scheduling the service.

[0699] Optionally, the second time interval and / or the third value are agreed upon by a protocol;

[0700] The method further comprises:

[0701] Report the second time interval and / or the third value to the first device.

[0702] For a detailed description of steps 4201-4202, please refer to the above embodiment description.

[0703] 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.

[0704] 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.

[0705] FIG5 is an interactive diagram illustrating a communication method according to an embodiment of the present disclosure. As shown in FIG5 , the present disclosure embodiment relates to a communication method for use in a communication system including a first device and a second device, wherein the method includes at least one of the following:

[0706] Step 5101: The first device determines a first transmission parameter.

[0707] Step 5102: The first device sends the first information to at least one second device based on the first transmission parameter.

[0708] Step 5103: The second device determines the first transmission parameter.

[0709] Step 5104: The second device receives the first information sent by the first device based on the first transmission parameter.

[0710] Optional implementations of steps 5101 to 5104 can be found in the above embodiments.

[0711] 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.

[0712] 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.

[0713] 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.

[0714] The following is an exemplary introduction to the above method.

[0715] Optional embodiment 1

[0716] In a network, A-IoT network devices communicate with A-IoT terminal devices. A-IoT network devices include base stations, terminals, intermediate nodes, auxiliary nodes, and other types. A-IoT terminal devices are of 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 and data. Optionally, the excitation signal can also be used as a charging energy source for the A-IoT terminal device.

[0717] The A-SS is sent periodically or aperiodically by the A-IoT network device, and the A-SS is used at least for time and frequency synchronization between the A-IoT network device and the A-IoT terminal device.

[0718] The A-SS is periodically sent by A-IoT network devices and includes:

[0719] 1) The A-SS needs to be sent periodically by the base station, or sent periodically within a first duration, where the first duration is confirmed by protocol pre-defined / UE reporting / device reporting, etc.;

[0720] 2) The A-SS needs to be sent periodically by the intermediate node such as the UE, or sent periodically within a first duration, which is predefined by the protocol / configured by the A-IoT network device;

[0721] The A-SS is sent aperiodically by A-IoT network devices and includes:

[0722] 1) Before triggering the scheduling, the A-SS needs to be sent by the A-IoT network device. For example, the protocol defines / device reports a first time interval / number of synchronization signals. The A-IoT network device must send at least enough synchronization signals before triggering the service.

[0723] 2) After the service is triggered, the A-SS needs to be continuously sent by the A-IoT network device. For example, after sending N reference signals (command signaling, command signaling carrying data, or data channel), a synchronization signal is sent.

[0724] Furthermore, the A-SS type before and after the service is triggered may be the same or different.

[0725] Furthermore, the A-SS further functions include at least one of the following:

[0726] Option 1: The inventory triggering period is equal to the A-SS period, and multiple inventory scheduling can be triggered within the inventory period.

[0727] Option 2: The scheduling trigger time unit is equal to the A-SS period, and the scheduling period is the period of one inventory adjustment.

[0728] Optional embodiment 2

[0729] In a network, A-IoT network devices communicate with A-IoT terminal devices. A-IoT network devices include base stations, terminals, intermediate nodes, auxiliary nodes, and other types. A-IoT terminal devices are of 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 and data. Optionally, the excitation signal can also be used as a charging energy source for the A-IoT terminal device.

[0730] The A-SS is sent periodically or aperiodically by the A-IoT network device. The A-SS is used at least for time and frequency synchronization between the A-IoT network device and the A-IoT terminal device. The A-SS is determined by at least one of the following parameters:

[0731] Parameter 1: Frequency domain bandwidth, that is, the frequency domain resources occupied by the A-SS.

[0732] Option 1: The bandwidth is consistent with the reference signal (command signaling, command signaling carrying data, or data channel);

[0733] Option 2: Fixed bandwidth;

[0734] Option 3: Flexible and configurable bandwidth.

[0735] Note: Necessary parameters for A-SS configuration

[0736] Parameter 2: A-SS center frequency / reference frequency

[0737] Option 1: The center frequency, bandwidth lower edge, and bandwidth upper edge of the reference signal / channel (SSB, initial BWP, PDCCH, PDSCH, PUSCH, PUCCH, CW) are used as the reference frequency.

[0738] Option 2: Point A is the reference frequency;

[0739] Option 3: Center frequency / reference frequency or fixed frequency.

[0740] Note: Necessary parameters for A-SS configuration

[0741] Parameter 3: A-SS period, which is the period during which at least one A-SS is sent

[0742] Option 1: Fixed period;

[0743] Option 2: Flexible and configurable period.

[0744] Option 3: Aperiodic transmission

[0745] Note: A-SS periodically configures essential parameters to synchronize devices within the coverage area, facilitating random scheduling.

[0746] Parameter 4: Time domain length, i.e. A-SS duration

[0747] Option 1: Fixed time domain length;

[0748] Option 2: Flexible and configurable time domain length.

[0749] Note: Necessary parameters for A-SS configuration

[0750] Parameter 5: Radio frame location, which is the radio frame location where the A-SS is located

[0751] Option 1: The first / last half frame in a fixed radio frame;

[0752] Option 2: The first / last half of the wireless frame can be configured.

[0753] Note: It is necessary to confirm whether concepts such as radio frames, time slots, and time domain symbols exist, and they will be unified into time units.

[0754] Parameter 6: Timeslot configuration, i.e. the timeslot location of the A-SS

[0755] Option 1: can be configured with non-continuous time slots;

[0756] Option 2: Continuous time slots can be configured;

[0757] Option 3: Configurable time slot pattern;

[0758] Option 4: Fixed non-continuous time slots;

[0759] Option 5: Fixed continuous time slots;

[0760] Option 6: Fixed time slot pattern;

[0761] Note: It is necessary to confirm whether concepts such as radio frames, time slots, and time domain symbols exist, and they will be unified into time units.

[0762] Parameter 7: Time domain symbol configuration, that is, the starting position and duration of the time domain symbol where the A-SS is located

[0763] Option 1: can be configured with non-continuous time domain symbols;

[0764] Option2: Continuous time domain symbols can be configured;

[0765] Option 3: Configurable time domain symbol pattern;

[0766] Option 4: Fixed non-continuous time domain symbols;

[0767] Option 5: Fixed continuous time domain symbols;

[0768] Option 6: Fixed time domain symbol pattern.

[0769] Note: It is necessary to confirm whether concepts such as radio frames, time slots, and time domain symbols exist, and they will be unified into time units.

[0770] Parameter 8: Time domain position relationship between A-SS and DL

[0771] Option 1: Fixed offset;

[0772] Option 2: Configurable offset;

[0773] Note: A-SS aperiodic configuration requires parameters, similar to offset+preamble.

[0774] Parameter 9: Pattern within the A-SS cycle (divides the cycle into multiple time domain units and distributes them within the A-SS cycle)

[0775] Option 1: Fixed pattern;

[0776] Note: Optional parameters

[0777] The above parameters may be determined by at least one of the following methods:

[0778] Predefined by the protocol;

[0779] Dynamically configured by A-IoT network devices to A-IoT terminal devices;

[0780] Semi-static configuration by A-IoT network equipment to A-IoT terminal equipment;

[0781] The base station configures the data to the terminal node, such as the UE, through DCI.

[0782] The base station configures the MAC CE to the terminal node, such as the UE;

[0783] The base station is configured to the terminal node, such as the UE, through RRC signaling;

[0784] Burned to A-IoT terminal devices during production.

[0785] Optional embodiment 3

[0786] In a network, A-IoT network devices communicate with A-IoT terminal devices. A-IoT network devices include base stations, terminals, intermediate nodes, auxiliary nodes, and other types. A-IoT terminal devices are of 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 and data. Optionally, the excitation signal can also be used as a charging energy source for the A-IoT terminal device.

[0787] The A-SS is sent periodically or aperiodically by the A-IoT network device. The A-preamble is sent by the A-IoT network device along with downlink signaling, and the downlink signaling includes at least one of DL control signaling, DL data signaling, and DL data-carrying control signaling. The A-preamble and A-SS are used together for time and frequency synchronization between the A-IoT network device and the A-IoT terminal device. The A-preamble and A-SS are determined by at least one of the following parameters:

[0788] Parameter 1: Frequency domain bandwidth

[0789] Option 1: The bandwidth is consistent with the reference signal (command signaling, command signaling carrying data, or data channel);

[0790] Option 2: Fixed bandwidth;

[0791] Option 3: Flexible and configurable bandwidth.

[0792] Note: A-preamble configuration parameters are required

[0793] Parameter 2: Time domain length

[0794] Option 1: Fixed time domain length;

[0795] Option 2: Flexible and configurable time domain length.

[0796] Note: A-preamble configuration parameters are required

[0797] Parameter 3: A-preamble terminator

[0798] Option 1: Fixed time domain symbol pattern;

[0799] Note: A-preamble configuration parameters are required

[0800] Optional embodiment 4

[0801] In a network, A-IoT network devices communicate with A-IoT terminal devices. A-IoT network devices include base stations, terminals, intermediate nodes, auxiliary nodes, and other types. A-IoT terminal devices are of 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 and data. Optionally, the excitation signal can also be used as a charging energy source for the A-IoT terminal device.

[0802] The A-SS is sent periodically or aperiodically by A-IoT network devices. The A-preamble is sent by A-IoT network devices along with downlink signaling, which includes at least one of downlink control signaling, downlink data signaling, and downlink data-carrying control signaling. The A-preamble and A-SS are used together for time and frequency synchronization between the A-IoT network device and A-IoT terminal devices.

[0803] The relationship between the A-preamble and the A-SS includes at least one of the following:

[0804] 1) There is a first time interval / first offset between the A-preamble and the A-SS. The first time interval / first offset is determined by at least one of the following methods:

[0805] Predefined by the protocol;

[0806] Dynamically configured by A-IoT network devices to A-IoT terminal devices;

[0807] Semi-static configuration by A-IoT network equipment to A-IoT terminal equipment;

[0808] The base station configures the data to the terminal node, such as the UE, through DCI.

[0809] The base station configures the MAC CE to the terminal node, such as the UE;

[0810] The base station is configured to the terminal node, such as the UE, through RRC signaling;

[0811] Burned to A-IoT terminal devices during production.

[0812] 2) The first time interval between the A-preamble and the A-SS is not less than a second time length, and the second time length is determined in at least one of the following ways:

[0813] Predefined by the protocol;

[0814] A-IoT terminal devices report to A-IoT network devices.

[0815] 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.

[0816] 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.

[0817] 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.

[0818] 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:

[0819] a processing module, configured to determine a first transmission parameter, where the first transmission parameter is a parameter used to determine a time-frequency resource for transmitting first information, the first information being used for time-domain and / or frequency-domain synchronization between the first device and a second device, where the second device is a device that communicates based on collected energy;

[0820] A transceiver module is used to send the first information to at least one second device based on the first transmission parameter.

[0821] 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.

[0822] 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:

[0823] a processing module, configured to determine a first transmission parameter, where the first transmission parameter is a parameter used to determine a time-frequency resource for transmitting first information, and the first information is used for time domain and / or frequency domain synchronization between the first device and the second device;

[0824] A transceiver module is used to receive the first information sent by the first device based on the first transmission parameter.

[0825] 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.

[0826] 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.

[0827] 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.

[0828] 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.

[0829] 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.

[0830] 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.

[0831] 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.

[0832] 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.

[0833] 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.

[0834] 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.

[0835] 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.

[0836] 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.

[0837] 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.

[0838] 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.

[0839] 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.

[0840] 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)).

[0841] 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.

[0842] 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.

[0843] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on 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 transmission parameter, where the first transmission parameter is a parameter used to determine a time-frequency resource for transmitting first information, the first information being used for time domain and / or frequency domain 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 the first transmission parameter.

2. The method according to claim 1, wherein The first information includes at least one of the following: a first synchronization signal; First preamble.

3. The method according to claim 1 or 2, wherein: The determining of the first transmission parameter includes at least one of the following: Determining the first transmission parameter based on protocol agreement; When the first device is not a network device, the first transmission parameter configured by the network device is received.

4. The method according to any one of claims 1 to 3, characterized in that: The method further comprises: The first transmission parameter is configured to at least one second device.

5. The method according to any one of claims 1 to 4, characterized in that: The first transmission parameter includes at least one of the following: The frequency domain bandwidth of the first information; The central frequency of the first information; a period of the first information; The time domain length of the first information; the time domain position of the first information; a first offset value corresponding to the first information, the first offset value being used to indicate, when a process of sending the first information by the first device is performed independently from a first transmission process of the first device, an offset between the first information and second information in the first transmission process; a pattern of the first information within a period; The terminator of the first information.

6. The method according to claim 5, wherein The frequency domain bandwidth of the first information satisfies at least one of the following: The frequency domain bandwidth of the first information is the same as the frequency domain bandwidth of the first signaling or the first channel; the first signaling is downlink signaling sent by the first device to the second device, and the first channel is a downlink channel sent by the first device to the second device; The frequency domain bandwidth of the first information is a fixed bandwidth; The frequency domain bandwidth of the first information can be configured.

7. The method according to claim 5, wherein The central frequency of the first information satisfies at least one of the following: The center frequency of the first information is the same as the center frequency of the first signal, the first channel, or the initial bandwidth part BWP; the first signal is a downlink signal sent by the first device to the second device, and the first channel is a downlink channel sent by the first device to the second device; The center frequency of the first information is the same as the lower edge of the bandwidth of the first signal, the first channel, or the initial BWP; The center frequency of the first information is the same as the upper edge of the bandwidth of the first signal, the first channel, or the initial BWP; The center frequency of the first channel is Point A; The center frequency of the first channel is a fixed frequency.

8. The method according to claim 6 or 7, wherein: The first channel includes at least one of the following: A-IoT physical downlink control channel PDCCH; A-IoT physical downlink shared channel PDSCH; A-IoT physical uplink shared channel PUSCH; A-IoT physical uplink control channel PUCCH; A-IoT data control channel.

9. The method according to claim 6 or 7, wherein: The first signal includes at least one of the following: Synchronization signal block SSB; a second signal, wherein the second signal is used to stimulate the second device to perform backscattering; A third signal is used to charge the second device.

10. The method according to claim 5, wherein The period of the first information is a fixed period or the period of the first information is configurable; and / or The first offset value may be a fixed offset value or the first offset value may be configurable; and / or The pattern of the first information within a period is a fixed pattern; and / or The terminator of the first information is a fixed symbol; and / or The time domain length of the first information is a fixed time domain length or the time domain length of the first information is configurable.

11. The method according to claim 5 or 10, wherein: The period of the first information is the same as the period of the first communication operation; or, the period of the first information is the same as the period of the first scheduling; wherein, the first communication operation is the communication operation performed by the first device on the second device, and the first scheduling is the scheduling of the first device on the second device.

12. The method according to claim 5, wherein The time domain position of the first information satisfies at least one of the following conditions: The time domain position of the first information is a fixed time unit; The time domain position of the first information is a configurable time unit; The time domain position of the first information is a configurable non-continuous time unit; The time domain position of the first information is a configurable continuous time unit; The time domain position of the first information is a fixed non-continuous time unit; The time domain position of the first information is a fixed continuous time unit.

13. The method according to any one of claims 2 to 12, wherein: When the first information includes a first synchronization signal and a first preamble code, there is a first time interval between the first synchronization signal and the first preamble code, and / or there is a second offset in the time domain between the first synchronization signal and the first preamble code.

14. The method according to claim 13, wherein The first time interval and / or the second offset is determined by at least one of the following methods: Determine the first time interval and / or the second offset based on a protocol agreement; When the first device is not a network device, the first time interval and / or the second offset configured by the network device is received.

15. The method according to claim 13 or 14, characterized in that The method further comprises: The first time interval and / or the second offset are configured to at least one second device.

16. The method according to any one of claims 13 to 15, wherein: The first time interval is greater than or not less than a first value, and the second offset is greater than or not less than a second value.

17. The method according to claim 16, wherein The first value and / or the second value are determined in at least one of the following ways: Determine the first value and / or the second value based on a protocol agreement; Receive the first value and / or the second value reported by the second device.

18. The method according to any one of claims 1 to 17, wherein: The sending of the first information includes at least one of the following: periodically sending the first information; The first information is sent aperiodically.

19. The method according to claim 18, wherein The periodically sending the first information includes: The first information is periodically sent within a first time period.

20. The method according to claim 19, wherein The method for determining the first duration includes at least one of the following: Determining the first duration based on the agreement; receiving the first duration reported by the second device; When the first device is a network device, receiving the first duration reported by the terminal; When the first device is a terminal, the first duration configured by a network device is received.

21. The method of claim 18, wherein: The aperiodic sending of the first information includes: Before scheduling a service to the second device, the first device sends the first information; After the first device triggers a service to the second device, the first device sends the first information; The first information sent before scheduling a service is the same as or different from the first information sent after triggering a service.

22. The method according to claim 21, wherein The first device sending the first information before scheduling a service to the second device includes: Determine a second time interval and / or a third value; wherein the second time interval is: the time interval between the time when the first information is sent and the time when the first device schedules the service, and the third value is the number of first information required to be sent before scheduling the service; Before the first device schedules a service to the second device, the first information is sent based on the second time interval and / or the third value.

23. The method according to claim 22, wherein Determining the second time interval and / or the third value includes at least one of the following: Determining the second time interval and / or the third value based on protocol agreement; Receive the second time interval and / or third value reported by the second device.

24. 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: Determining a first transmission parameter, where the first transmission parameter is a parameter used to determine a time-frequency resource for transmitting first information, and the first information is used for time domain and / or frequency domain synchronization between the first device and the second device; The first information sent by the first device is received based on the first transmission parameter.

25. A first device, characterized in that: include: The processing module is configured to determine a first transmission parameter, wherein the first transmission parameter is a parameter used when determining a time-frequency resource for transmitting the first information, wherein the first information is used for performing time domain and / or frequency domain synchronization between the first device and the second device, wherein the second device is: based on the search Devices that gather energy to communicate; A transceiver module is used to send the first information to at least one second device based on the first transmission parameter.

26. A second device, characterized in that: include: a processing module, configured to determine a first transmission parameter, where the first transmission parameter is a parameter used to determine a time-frequency resource for transmitting first information, and the first information is used for time domain and / or frequency domain synchronization between the first device and the second device; A transceiver module is used to receive the first information sent by the first device based on the first transmission parameter.

27. 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 24.

28. 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 23, and the second device is configured to implement the method according to claim 24.

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 1 to 24.

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