Communication method and device based on environmental Internet of Things, communication system, communication device and storage medium

Abstract

The invention relates to a communication method and device based on an environmental Internet of Things, a communication system, a communication device and a storage medium, and belongs to the technical field of communication. The method comprises: a first device determines the transmission power of a first carrier; and transmitting a first carrier to the second device at the transmission power, the first carrier being used for providing radio frequency energy to the second device and / or for causing the second device to backscatter. By determining the transmit power, provision of radio frequency energy to the A-IOT device and / or backscattering of the A-IOT device is achieved.

Description

A communication method and device based on environmental Internet of Things, a communication system, a communication device, and a storage medium Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a communication method and device, a communication system, a communication device, and a storage medium based on an environmental Internet of Things. Background Art

[0002] A-IoT is a new IoT technology. Compared with traditional IoT technology, a notable feature is that the number of A-IoT terminals that can be connected to the network is huge, and the structure is simple, the hardware cost and maintenance cost are low, the power consumption is low, and the battery does not need to be replaced for a long time.

[0003] IoT can be applied to scenarios such as large-scale inventory management, where A-IoT devices report EPC codes to the network / intermediary node X / UE. This can also be applied to sensing scenarios such as smart homes and environmental monitoring, where data is reported upon meeting certain trigger conditions. This can be applied to positioning scenarios, such as finding items or locating locations within a shopping mall. It can also be used in command scenarios to respond to commands sent by network devices.

[0004] Summary of the Invention

[0005] The embodiments of the present disclosure propose a communication method and device, a communication system, a communication device, and a storage medium based on the environmental Internet of Things, which can be used in the field of communication technology to determine the transmission power to send a carrier wave (CW) or a continuous wave (CW) to an A-IoT terminal device. The CW signal is used to provide radio frequency energy to the A-IOT device and / or cause the A-IOT device to backscatter.

[0006] According to a first aspect of an embodiment of the present disclosure, a communication method is proposed, which is performed by a first device, including: determining the transmission power of a first carrier; sending the first carrier to a second device at the transmission power, wherein the first carrier is used to provide radio frequency energy to the second device and / or to cause the second device to perform backscattering.

[0007] According to a second aspect of an embodiment of the present disclosure, a communication method is proposed, which is performed by a second device, including: receiving a first carrier sent by a first device with a transmission power, the first carrier being used to provide radio frequency energy to the second device and / or to cause the second device to perform backscattering.

[0008] According to a third aspect of an embodiment of the present disclosure, a first device is proposed, comprising a processing module for determining a transmit power of a first carrier; and a transceiver module for transmitting the first carrier to a second device at the transmit power, wherein the first carrier is used to provide radio frequency energy to the second device and / or to cause the second device to perform backscattering.

[0009] According to a fourth aspect of an embodiment of the present disclosure, a second device is proposed, comprising a transceiver module for receiving a first carrier sent by a first device with a transmitting power, the first carrier being used to provide radio frequency energy to the second device and / or to cause the second device to perform backscattering.

[0010] According to the fifth aspect of the embodiment of the present disclosure, a communication device is proposed, including a transceiver; a memory; and a processor, which are connected to the transceiver and the memory respectively, and are configured to control the wireless signal reception and transmission of the transceiver by executing computer-executable instructions on the memory, and can implement the method described in any one of the first and second aspects.

[0011] According to the sixth aspect of an embodiment of the present disclosure, a communication system is proposed, comprising a first device and a second device, wherein the first device is configured to implement the communication method described in any one of the first aspects, and the second device is configured to implement the communication method described in any one of the second aspects.

[0012] According to the seventh aspect of the embodiment of the present disclosure, a computer storage medium is proposed, which stores computer-executable instructions. When the instructions are executed on a communication device, the communication device executes the communication method described in any one of the first and second aspects.

[0013] According to the communication method proposed in the present disclosure, by determining the transmission power of the first carrier, the purpose of the A-IoT network device sending CW to the A-IoT terminal device and / or receiving CW-based backscattering is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings required for describing the embodiments are introduced. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

[0015] FIG1A is a schematic diagram of a topology structure 1 provided according to an embodiment of the present disclosure;

[0016] FIG1B is a schematic diagram of a topology structure 2 provided according to an embodiment of the present disclosure;

[0017] FIG1C is a schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure;

[0018] FIG2 is an interactive diagram of a communication method provided according to an embodiment of the present disclosure;

[0019] FIG3A is a flow chart of a communication method for a first device according to an embodiment of the present disclosure;

[0020] FIG3B is a flow chart of a communication method for a first device according to an embodiment of the present disclosure;

[0021] FIG4 is a flow chart of a communication method of a third device according to an embodiment of the present disclosure;

[0022] FIG5A is a flow chart of a communication method for a second device according to an embodiment of the present disclosure;

[0023] FIG5B is a flow chart of a communication method for a second device according to an embodiment of the present disclosure;

[0024] FIG6 is an interactive diagram of a communication method according to an embodiment of the present disclosure;

[0025] FIG7 is a topological structure diagram provided according to an embodiment of the present disclosure;

[0026] FIG8A is a schematic structural diagram of a first device provided according to an embodiment of the present disclosure;

[0027] FIG8B is a schematic structural diagram of a second device provided according to an embodiment of the present disclosure;

[0028] FIG9A is a schematic structural diagram of a communication device according to an embodiment of the present disclosure;

[0029] FIG9B is a schematic diagram of the structure of the chip proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0030] The embodiments of the present disclosure provide a communication method and device, a communication system, a communication device, and a storage medium based on the environmental Internet of Things.

[0031] In a first aspect, an embodiment of the present disclosure provides a communication method based on an environmental Internet of Things, which is executed by a first device and includes: determining the transmission power of a first carrier; sending the first carrier to a second device at the transmission power, wherein the first carrier is used to provide radio frequency energy to the second device and / or to cause the second device to perform backscattering.

[0032] In the above embodiment, the transmission power is determined to determine whether to send a CW signal to the A-IOT device. The CW signal is used to provide radio frequency energy to the A-IOT device and / or cause the A-IOT device to perform backscattering.

[0033] In combination with some embodiments of the first aspect, in some embodiments, determining the transmission power of the first carrier includes: determining the transmission power as a preset power, the preset power is a constant value; or, dynamically determining the transmission power based on first information, the first information is used to identify the link status between the first device and the second device.

[0034] In combination with some embodiments of the first aspect, in some embodiments, determining the transmission power as a preset power, and the preset power as a constant value includes: when the first device is a network device, determining the preset power based on protocol predefinition; when the first device is an intermediate node, determining the preset power based on an indication of the network device, the intermediate node can communicate with the network device and the second device, and the intermediate node includes at least one of a terminal, a repeater, a transponder, an integrated access and backhaul IAB node.

[0035] In combination with some embodiments of the first aspect, in some embodiments, dynamically determining the transmission power based on the first information includes: when the first information meets the preset conditions, determining the transmission power to be the first power; when the first information does not meet the preset conditions, determining the transmission power to be the second power, and the first power is less than the second power.

[0036] In combination with some embodiments of the first aspect, in some embodiments, sending a first carrier to a second device at a transmitting power includes: sending the first carrier to one second device at a transmitting power, the first carrier being used to provide radio frequency energy to the second device and / or to cause the second device to perform backscattering; or sending the first carrier to multiple second devices at a transmitting power, the first carrier being used to provide radio frequency energy to the multiple second devices and / or to cause the multiple second devices to perform backscattering.

[0037] In the above embodiment, the first device can send a first carrier to one or more A-IOT devices based on a determined preset power or a power determined based on the first information, so as to achieve the purpose of providing radio frequency energy to the A-IOT device and / or causing the A-IOT device to perform backscattering.

[0038] In combination with some embodiments of the first aspect, in some embodiments, the first carrier includes a second carrier and a third carrier, the second carrier is used to provide radio frequency energy to the second device, and the third carrier is used to cause the second device to backscatter; sending the first carrier to the second device at a transmission power includes: sending the second carrier to the second device at a first transmission power; sending the third carrier to the second device at a second transmission power.

[0039] With reference to some embodiments of the first aspect, in some embodiments, the transmission time of the second carrier and the third carrier are the same or different.

[0040] In combination with some embodiments of the first aspect, in some embodiments, determining the transmission power of the first carrier includes any one of the following: determining that the first transmission power is a preset power, the preset power is a constant value; and dynamically determining the second transmission power based on the first information, the first information being used to identify the link status between the first device and the second device; determining that the second transmission power is a preset power, and dynamically determining the first transmission power based on the first information; determining that the first transmission power and the second transmission power are both preset powers; and dynamically determining the first transmission power and the second transmission power based on the first information.

[0041] In the above embodiment, the first device sends carrier waves to the A-IOT device at different powers to provide radio frequency energy and enable the A-IOT device to perform backscattering. The transmission power can be a preset power or dynamically determined based on the first information, so that the A-IOT device can collect radio frequency energy and then perform backscattering.

[0042] In combination with some embodiments of the first aspect, in some embodiments, the first carrier includes a second carrier and a third carrier, the second carrier is used to provide radio frequency energy to the second device, and the third carrier is used to cause the second device to backscatter; sending the first carrier to the second device at a transmitting power includes: sending the second carrier to the second device at a transmitting power, wherein the third carrier is sent by the third device to the second device; or sending the third carrier to the second device at a transmitting power, wherein the second carrier is sent by the third device to the second device.

[0043] With reference to some embodiments of the first aspect, in some embodiments, the transmission time of the second carrier and the third carrier are the same or different.

[0044] In combination with some embodiments of the first aspect, in some embodiments, the first device is at least one of a network device, a terminal, an intermediate node, and an auxiliary node, and the first device can send downlink information to the second device and receive uplink information sent by the second device; the second device is at least one of an environmental Internet of Things A-IOT device, an A-IOT terminal, and an A-IOT tag; the third device is at least one of a network device, a terminal, an intermediate node, and an auxiliary node, and the third device can send downlink information to the second device but cannot receive uplink information sent by the second device.

[0045] In the above embodiment, the device that transmits the first carrier to the A-IOT device can be a different device, and the transmission power can be a preset power or dynamically determined based on the first information. Based on the needs of the A-IOT device, a different device can transmit the CW signal to avoid interference between the device that collects RF energy and the device that performs backscattering.

[0046] In a second aspect, an embodiment of the present disclosure provides a communication method based on an environmental Internet of Things, which is executed by a second device, including: receiving a first carrier sent by a first device with a transmitting power, the first carrier being used to provide radio frequency energy to the second device and / or to cause the second device to perform backscattering.

[0047] In combination with some embodiments of the second aspect, in some embodiments, the transmitting power is a preset power, and the preset power is a constant value; or, the transmitting power is dynamically determined by the first device based on the first information, and the first information is used to identify the link status between the first device and the second device.

[0048] In combination with some embodiments of the second aspect, in some embodiments, the first carrier includes a second carrier and a third carrier, the second carrier is used to provide radio frequency energy to the second device, and the third carrier is used to cause the second device to backscatter; receiving the first carrier sent by the first device at a transmitting power includes: receiving the second carrier sent by the first device at a first transmitting power; receiving the third carrier sent by the first device at a second transmitting power.

[0049] In combination with some embodiments of the second aspect, in some embodiments, the transmission time of the second carrier and the third carrier are the same or different.

[0050] In combination with some embodiments of the second aspect, in some embodiments, the first transmission power is a preset power, and the preset power is a constant value; the second transmission power is dynamically determined by the first device based on the first information, and the first information is used to identify the link status between the first device and the second device; the second transmission power is a preset power, and the first transmission power is dynamically determined by the first device based on the first information; the first transmission power and the second transmission power are both preset powers; the first transmission power and the second transmission power are both determined by the first device based on the first information.

[0051] In combination with some embodiments of the second aspect, in some embodiments, the first carrier includes a second carrier and a third carrier, the second carrier is used to provide radio frequency energy to the second device, and the third carrier is used to cause the second device to backscatter; receiving the first carrier sent by the first device at a transmitting power includes: receiving the second carrier sent by the first device at a transmitting power; receiving the third carrier sent by the third device; or, receiving the third carrier sent by the first device at a transmitting power; receiving the second carrier sent by the third device.

[0052] In combination with some embodiments of the second aspect, in some embodiments, the transmission time of the second carrier and the third carrier are the same or different.

[0053] In combination with some embodiments of the second aspect, in some embodiments, the first device is at least one of a network device, a terminal, an intermediate node, and an auxiliary node, and the first device can send downlink information to the second device and receive uplink information sent by the second device; the second device is at least one of an environmental Internet of Things A-IOT device, an A-IOT terminal, and an A-IOT tag; the third device is at least one of a network device, a terminal, an intermediate node, and an auxiliary node, and the third device can send downlink information to the second device but cannot receive uplink information sent by the second device.

[0054] In a third aspect, an embodiment of the present disclosure provides a first device, comprising a processing module for determining the transmission power of a first carrier; and a transceiver module for sending the first carrier to a second device at the transmission power, wherein the first carrier is used to provide radio frequency energy to the second device and / or to cause the second device to perform backscattering.

[0055] In a fourth aspect, an embodiment of the present disclosure provides a second device, comprising a transceiver module for receiving a first carrier sent by a first device with a transmitting power, the first carrier being used to provide radio frequency energy to the second device and / or to cause the second device to perform backscattering.

[0056] In the fifth aspect, an embodiment of the present disclosure provides a communication device, comprising: a transceiver; a memory; and a processor, which are connected to the transceiver and the memory respectively, and configured to control the wireless signal reception and transmission of the transceiver by executing computer-executable instructions on the memory, so that the communication device executes the method described in any one of the embodiments of the first and second aspects of the present disclosure.

[0057] In the sixth aspect, an embodiment of the present disclosure provides a communication system, comprising: a first device and a second device, wherein the first device is configured to implement the method described in any one of the embodiments in the first aspect of the present disclosure; the second device is configured to implement the method described in any one of the embodiments in the second aspect of the present disclosure.

[0058] In combination with some embodiments of the sixth aspect, in some embodiments, the communication system also includes a third device, wherein the first device is at least one of a network device, a terminal, an intermediate node, and an auxiliary node, and the first device can send downlink information to the second device and receive uplink information sent by the second device; the second device is at least one of an environmental Internet of Things A-IOT device, an A-IOT terminal, and an A-IOT tag; the third device is at least one of a network device, a terminal, an intermediate node, and an auxiliary node, and the third device can send downlink information to the second device but cannot receive uplink information sent by the second device.

[0059] In the seventh aspect, an embodiment of the present disclosure provides a storage medium, which stores instructions. When the instructions are executed on a communication device, the communication device executes the method described in any one of the embodiments of the first and second aspects of the present disclosure.

[0060] In an eighth 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 method described in the optional implementation of the first and second aspects.

[0061] In a ninth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first and second aspects.

[0062] In a tenth aspect, an embodiment of the present disclosure provides a chip or a chip system, which includes a processing circuit configured to execute the method described in the optional implementation of the first and second aspects above.

[0063] It is understandable that the first device, second device, third device, communication system, communication device, storage medium, program product, computer program, chip, or chip system described above are all used to perform the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0064] The present disclosure provides a communication method and device, a communication system, a communication device, and a storage medium based on the environmental Internet of Things. In some embodiments, the terms "communication method" and "information processing method" are interchangeable, the terms "network device" and "information processing device" and "communication device" are interchangeable, and the terms "information processing system" and "communication system" are interchangeable.

[0065] 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.

[0066] 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.

[0067] 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.

[0068] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "the", "the", etc., can mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article can be understood as a singular expression or a plural expression.

[0069] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] 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.

[0074] 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.

[0075] In some embodiments, terms such as "time / frequency" and "time / frequency domain" refer to the time domain and / or the frequency domain.

[0076] 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.

[0077] 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.

[0078] 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.

[0079] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0080] 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.

[0081] 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.

[0082] 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, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms 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.

[0083] 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.

[0084] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0085] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0086] 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.

[0087] A-IOT devices can be divided into three categories. Type A devices do not support energy storage or only support a small amount of energy storage. They work based on backscatter and have the lowest complexity and low power consumption. For example, Type A devices need to receive wireless signals to obtain energy to activate the internal receiving and processing modules. Type B devices support energy storage and work based on backscatter. Their complexity and power consumption are higher than Type A devices, but still maintain a relatively low level. The energy that Type B devices can store is still relatively limited. The modulation and demodulation methods that Type A and Type B may use are relatively simple, such as OOK / PSK. Type C devices support energy storage and work based on active transmission. That is, Type C devices amplify and transmit information through power amplifiers. Type C devices generally need to store more energy to support active transmission of information. Type C can use more complex modulation and coding methods, such as OFDM modulation and demodulation, and can amplify uplink or downlink signals.

[0088] Among the three types of A-IOT devices mentioned above, Type C has the strongest capability and the highest terminal cost, while Type A has the weakest capability and the lowest terminal cost. In addition, Type A and Type B can only use the backscattering working mode and cannot actively send signals. When they need to send information, they must have the outside world to provide them with electromagnetic waves (continuous wave, CW) for backscattering. The coverage range supported by their terminals is small, but the power consumption of the working mode of Type A / B is much smaller than that of the working mode of Type C.

[0089] Based on backscattering, A-IOT devices that use backscattering require an energy source (CW node) that provides continuous electromagnetic waves (CW) to provide electromagnetic waves for reflection while sending data. CW generally has a constant amplitude. The CW node can be a separate node or a network / intermediate node (such as UE) that communicates with the device. The A-IOT device reflects the received CW, loads the signaling / data to be transmitted onto the reflected wave, and sends it out. The reflected wave and the CW have the same frequency or a certain frequency offset. At the same time, the CW also serves to charge the A-IOT device. Type A devices receive the wireless signal CW, activate the internal receiving and processing module to start working, and encode and modulate the signaling / data that the A-IOT device needs to upload.

[0090] In related technologies, A-IOT devices have the characteristics of small memory, low processing power, low power consumption, small amount of transmitted data, large connection, high coverage, and support for a large number of A-IOT device connections. Therefore, the design of the downlink channel in the A-IOT scenario needs to integrate these characteristics, and the design of some channels can be simplified to reduce the complexity of implementation and product complexity.

[0091] CW radio frequency energy harvesting for A-IoT devices requires higher transmission power to achieve high charging efficiency. However, excessively high transmission power can cause self-interference and interfere with NR signals. However, CW backscattering for A-IoT devices does not require high transmission power. Therefore, considering both interference and charging efficiency, the CW transmission power can be regulated.

[0092] Therefore, the present disclosure proposes a communication method and device, a communication system, a communication device, and a storage medium, which are used for communication between an A-IOT network device and an A-IOT terminal device by determining the transmission power sent in CW, including providing radio frequency energy to the A-IOT terminal device and / or using the A-IOT terminal device for backscattering.

[0093] The method proposed in the present disclosure is applicable to various communication systems, including but not limited to 4G, 5G, 5G-advance and subsequent communication technologies (such as 6G, etc.).

[0094] The following describes how to deploy A-IOT devices.

[0095] A-IOT network equipment includes networks, terminals, intermediate nodes, auxiliary nodes, etc. Intermediate nodes can be repeaters, integrated access and backhaul IAB nodes, terminals, and transponders.

[0096] Currently, A-IOT devices support two deployment structures.

[0097] As shown in the topology 1 structure in FIG1A , DL and UL data reception and transmission are performed directly between the A-IOT device and the network.

[0098] As shown in the topology 2 structure of FIG1B , the A-IOT device and the network indirectly receive and transmit DL and UL data through an intermediate node.

[0099] In a system based on the environmental Internet of Things, there are three types of terminal data transmission:

[0100] 1. Report data based on network needs, such as inventory counts. A-IoT network devices send real-time instructions, and A-IoT terminal devices respond to these instructions and report back. Applicable to topologies 1 and 2.

[0101] 2. Based on environmental IoT triggers, for example, if the sensor temperature exceeds the configured threshold, the A-IoT terminal device will monitor whether the environmental conditions are met and proactively report when the environmental conditions are triggered.

[0102] 3. Periodic data reporting: regular requests from the network to achieve regular environmental IoT data reporting; or based on the A-IOT device’s self-triggering to achieve periodic environmental IoT data reporting (difficult to achieve due to discontinuous power supply and timing difficulties).

[0103] FIG1C is a schematic diagram illustrating an architecture of a communication system according to an embodiment of the present disclosure. As shown in FIG1C , a communication system 100 may include a first device 101 and a second device 102 .

[0104] In some embodiments, the first device 101 may be a device that determines transmit power.

[0105] In some embodiments, the first device 101 may be a device that transmits a first carrier to a second device.

[0106] In some embodiments, the first device 101 may be a device that transmits the second carrier to the second device.

[0107] In some embodiments, the first device 101 may be a device that transmits the third carrier to the second device.

[0108] In some embodiments, the first device 101 may be a device that sends downlink information.

[0109] In some embodiments, the first device 101 may be a device that receives backscatter from the second device.

[0110] In some embodiments, the first device 101 may be a device that receives uplink information.

[0111] In some embodiments, the first device 101 may be a network device.

[0112] In some embodiments, the first device 101 may be a terminal.

[0113] In some embodiments, the first device 101 may be an intermediate node. An intermediate node includes at least one of a terminal, a relay, a transponder, and an integrated access and backhaul (IAB) node.

[0114] In some embodiments, the first device 101 may be a secondary node.

[0115] In some embodiments, the first device 101 may be a device that sends downlink information to the second device and receives uplink information sent by the second device.

[0116] In some embodiments, the name of the first device 101 is not limited, and it may be, for example, a "transmission power determination device", a "first carrier transmission device", a "second carrier transmission device", a "third carrier transmission device", a "downlink information transmission device", a "uplink information reception device", etc.

[0117] In some embodiments, the second device 102 may be a device that receives the first carrier.

[0118] In some embodiments, the second device 102 may be a device that receives a second carrier.

[0119] In some embodiments, the second device 102 may be a device that receives a third carrier.

[0120] In some embodiments, the second device 102 may be a device that receives downlink information.

[0121] In some embodiments, the second device 102 may be a device that sends uplink information.

[0122] In some embodiments, the second device 102 may be an Ambient Internet of Things (A-IOT) device.

[0123] In some embodiments, the second device 102 may be an A-IOT terminal.

[0124] In some embodiments, the second device 102 may be an A-IOT tag.

[0125] In some embodiments, the name of the second device 102 is not limited, and it can be, for example, "a receiving device of the first carrier", "a receiving device of downlink information", "a sending device of uplink information", "a receiving device of the second carrier", "a receiving device of the third carrier", etc.

[0126] In some embodiments, the communication system 100 further includes a third device configured to send downlink information to the second device but unable to receive uplink information sent by the second device.

[0127] In some embodiments, the third device may be at least one of a network device, a terminal, an intermediate node, and an auxiliary node. The intermediate node includes at least one of a terminal, a repeater, a transponder, and an integrated access and backhaul (IAB) node.

[0128] In some embodiments, the third device may be a device that transmits the second carrier to the second device.

[0129] In some embodiments, the third device may be a device that transmits a third carrier to the second device.

[0130] In some embodiments, the third device may be a device that sends downlink information to the second device but cannot receive uplink information sent by the second device.

[0131] In some embodiments, the terminal may include at least one of a mobile phone, a wearable device, an Internet of Things device, a car with communication capabilities, a smart car, a tablet computer, a computer with wireless transceiver capabilities, 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 a wireless terminal device in a smart home, but is not limited thereto.

[0132] The network device in the embodiment of the present application is an entity on the network side for transmitting or receiving signals. For example, the network device may be an evolved NodeB (eNB), a transmission reception point (TRP), a next generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (WiFi) system. The embodiment of the present application does not limit the specific technology and specific device form adopted by the network device. The network device provided in the embodiment of the present application may be composed of a centralized unit (CU) and a distributed unit (DU), wherein the CU may also be referred to as a control unit. The CU-DU structure may be used to split the protocol layer of a network device, such as a base station, and the functions of some protocol layers are placed in the CU for centralized control, while the functions of the remaining part or all of the protocol layers are distributed in the DU, and the DU is centrally controlled by the CU.

[0133] The terminal device in the embodiments of the present application is an entity on the user side for receiving or transmitting signals, such as a mobile phone. The terminal device may also be referred to as a terminal device (terminal), user equipment (UE), mobile station (MS), mobile terminal device (MT), etc. The terminal device may be a car with communication function, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), 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 (industrial control), a wireless terminal device in self-driving (self-driving), a wireless terminal device in remote medical surgery (remote medical surgery), a wireless terminal device in a smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in a smart city (smart city), a wireless terminal device in a smart home (smart home), etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal device.

[0134] 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.

[0135] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1C , or a portion thereof, but are not limited thereto. The entities shown in FIG1C are illustrative only. The communication system may include all or part of the entities shown in FIG1C , or may include other entities other than those shown in FIG1C . 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.

[0136] The embodiments of the present disclosure may 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 802.17 (WiMAX (registered trademark)), IEEE 802.18 (WiMAX (registered trademark)), IEEE 802.19 (WiMAX (registered trademark)), IEEE 802.20 (WiMAX (registered trademark)), IEEE 802.21 (WiMAX (registered trademark)), IEEE 802.22 (WiMAX (registered trademark)), IEEE 802.23 (WiMAX (registered trademark)), IEEE 802.24 (WiMAX (registered trademark)), IEEE 802.25 (WiMAX (registered trademark)), IEEE 802.26 (WiMAX (registered trademark)), IEEE 802.27 (WiMAX (registered trademark)), IEEE 802.28 (WiMAX (registered trademark)), IEEE 802.29 (WiMAX (registered trademark)), IEEE 802.30 (WiMAX (registered trademark)), IEEE 802.31 (WiMAX (registered trademark)), IEEE 802.32 (WiMAX (registered trademark)), IEEE 802.33 (WiMAX (registered trademark)), 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 user plane path establishment methods, and next-generation systems based on and extending these systems. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0137] Figure 2 is an interactive diagram of a communication method provided by an embodiment of the present disclosure. As shown in Figure 2, an embodiment of the present disclosure relates to a communication method that can be executed by a communication system, such as the communication system 100 shown in Figure 1. The communication system includes a first device and a second device. In some embodiments, the communication system also includes a third device. The interactive method may include the following steps:

[0138] Step 2101: The first device determines the transmission power.

[0139] In some embodiments, the transmission power is used by the first device to transmit a first carrier to the second device, where the first carrier is used to provide radio frequency energy to the second device and / or to cause the second device to perform backscattering.

[0140] In some embodiments, the transmission power determined by the first device is a preset power, and the preset power is a constant value.

[0141] In some embodiments, the preset power is determined to be a constant value in the following ways:

[0142] In some embodiments, when the first device is a network device, the preset power is determined based on protocol predefinition.

[0143] In some embodiments, when the first device is an intermediate node, the preset power is determined based on the indication of the network device, the intermediate node can communicate with the network device and the second device, and the intermediate node includes at least one of a terminal, a repeater, a transponder, an integrated access and backhaul IAB node.

[0144] For example, the node device transmits the CW using constant power, where the constant power is determined based on pre-definition, protocol agreement, pre-configuration, or network device indication. When the node device is a network device, the node device can determine the constant power itself.

[0145] In some embodiments, the transmit power determined by the first device is dynamically determined based on first information, where the first information is used to identify a link status between the first device and the second device.

[0146] In some embodiments, the methods for dynamically determining the transmit power are as follows:

[0147] In some embodiments, when the first information satisfies a preset condition, the transmit power is determined to be the first power. In other words, determining the transmit power to be the first power means using the first power as the transmit power, or using the first power as the transmit power, or determining the first power as the power for transmitting the first carrier. In some embodiments, when the first information does not satisfy the preset condition, the transmit power is determined to be the second power, and the first power is less than the second power. In other words, determining the transmit power to be the second power means using the second power as the transmit power, or using the second power as the transmit power, or determining the second power as the power for transmitting the first carrier. In some embodiments, the preset condition may be that the link state between the first device and the second device identified in the first information is good or the distance is close.

[0148] For example, the node device determines the RSSI value based on the signal received from the A-IOT device, and compares the RSSI value with the threshold. When the measured value is greater than the threshold, it means that the distance between the A-IOT device and the node device is close, and the node device uses power 1 to send CW. When the measured value is less than the threshold, it means that the distance between the A-IOT device and the node device is far, and power 2 is used to send CW. Power 1 is less than power 2, and power 1 can also be less than constant power, and power 2 can be greater than constant power. In other words, the higher the RSSI measurement value, the lower the transmit power is used to send CW, and the lower the RSSI measurement value, the higher the transmit power is used to send CW.

[0149] The RSSI threshold is predefined or preconfigured by high-layer signaling, or dynamically indicated by physical layer signaling, or defined by a protocol, or predefined by a base station.

[0150] For example, the node device analyzes the information received from the A-IOT device. When the information indicates a good link state, the node device sends a CW using power 1. When the information indicates a poor link state, the node device sends a CW using power 2. Power 1 is less than power 2. Power 1 can also be less than the constant power, while power 2 can be greater than the constant power.

[0151] In some embodiments, the first carrier includes a second carrier and a third carrier, and the transmit power of the first carrier is determined in the following manners:

[0152] Example 1:

[0153] In some embodiments, the first transmit power is determined to be a preset power, the preset power being a constant value, and the second transmit power is dynamically determined based on first information, the first information being used to identify the link status between the first device and the second device. In other words, determining the first transmit power to be the preset power means setting the preset power to the first transmit power for transmitting the second carrier; and dynamically determining the second transmit power means using the dynamically determined second transmit power for transmitting the third carrier.

[0154] Example 2:

[0155] In some embodiments, the second transmit power is determined to be a preset power, the preset power being a constant value, and the first transmit power is dynamically determined based on the first information. In other words, determining the second transmit power to be the preset power means setting the preset power to the second transmit power for transmitting the third carrier; and dynamically determining the first transmit power means using the dynamically determined first transmit power for transmitting the second carrier.

[0156] Example 3:

[0157] In some embodiments, the first transmit power and the second transmit power are determined to be preset powers. In other words, the preset powers are set to the first transmit power and the second transmit power. In other words, the powers of transmitting the second carrier and the third carrier are both preset powers.

[0158] Example 4:

[0159] In some embodiments, the first transmit power and the second transmit power are dynamically determined based on the first information. In other words, dynamically determining the first transmit power and the second transmit power means that both the first transmit power and the second transmit power are dynamically determined.

[0160] In some embodiments, the first device and the third device may be the same device or different devices. When the first device and the third device are the same, the first device determines the transmission power. When the first device and the third device are different, both the first device and the third device need to determine the transmission power.

[0161] In some embodiments, the power used by the first device to provide radio frequency energy is greater than a minimum power threshold, where the minimum power threshold is predefined or preconfigured by high-layer signaling or dynamically indicated by physical layer signaling, or the minimum power threshold is jointly determined by the activation power value, path loss value and / or power amplification value of the second device, for example, the minimum power threshold = activation power value of the second device + path loss value ± power amplification value.

[0162] The activation power value of the second device may be a power value when the second device is in a working state and can receive downlink information, or a power value when the second device is in a working state and can perform backscatter uplink transmission. For different second devices, their activation power values ​​may be the same or different. For example, for a device with a peak power consumption of 1uW and a device with a peak power consumption of several hundred uW, their activation power values ​​are different, and the activation power value of the device with a peak power consumption of 1uW is smaller than the activation power value of the device with a peak power consumption of several hundred uW.

[0163] Step 2102: The first device sends a first carrier to the second device.

[0164] In some embodiments, the first device transmits the first carrier at a transmit power to the second device.

[0165] The first device sending the first carrier to the second device may include the following examples:

[0166] Example 1:

[0167] In some embodiments, a first device transmits a first carrier to a second device at a transmit power, where the first carrier is used to provide radio frequency energy to the second device and / or to cause the second device to perform backscattering.

[0168] For example, the node device provides a CW to a certain A-IOT device in a one-to-one manner.

[0169] In some embodiments, the first device transmits a first carrier to the plurality of second devices at a transmit power, where the first carrier is used to provide radio frequency energy to the plurality of second devices and / or to cause the plurality of second devices to perform backscattering.

[0170] In some embodiments, transmitting the first carrier to the plurality of second devices may be based on a distance determination grouping or based on a predefined grouping.

[0171] For example, the node device sends CWs at the same power to multiple A-IOT devices in a one-to-many manner.

[0172] For example, the first device determines a group based on signals received from multiple second devices, or predefines a second device grouping identifier, and sends the same CW to the multiple second devices according to the identifier.

[0173] Example 2:

[0174] In some embodiments, the first carrier includes a second carrier and a third carrier, the second carrier is used to provide radio frequency energy to the second device, and the third carrier is used to cause the second device to perform backscattering.

[0175] In some embodiments, a first device transmits a second carrier to a second device at a first transmit power, and transmits a third carrier to the second device at a second transmit power. The first transmit power may be a preset power or a power determined based on the first information, and the second transmit power may be a preset power or a power determined based on the first information.

[0176] In some embodiments, the transmission times of the second carrier and the third carrier are the same or different.

[0177] In some embodiments, a first device transmits a second carrier to a second device at a first transmit power and transmits a third carrier to the second device at a second transmit power at a first time. Alternatively, the first device transmits the second carrier to the second device at a second time and transmits the third carrier to the second device at a second transmit power and at a third time, where the second time and the third time are different.

[0178] In some embodiments, the first transmit power and the second transmit power may be the same or different.

[0179] In some embodiments, the first device transmits the second carrier and the third carrier in a time division multiplexing manner.

[0180] In some embodiments, the first device first sends the second carrier to the second device at the first transmission power and then sends the third carrier to the second device at the second transmission power.

[0181] In some embodiments, the first device sends the second carrier and the third carrier to the second device in a round-robin manner.

[0182] For example, a node device transmits CW1 at constant power p1 and CW2 at constant power p2. p1 and p2 can be equal or unequal. When p1 and p2 are unequal, p1 is greater than p2, or p1 is less than p2. The node device can first transmit CW1 at p1 and then transmit CW2 at p2, or alternately transmit CW1 at p1 and CW2 at p2 in a cyclic manner.

[0183] For example, the node device dynamically determines the power value p1 for sending CW1 and the power value p2 for sending CW2.

[0184] For example, the node device dynamically determines the power value p1 for sending CW1 and sends CW2 at a constant power p2.

[0185] For example, the node device dynamically determines the power value p2 for sending CW2 and sends CW1 at a constant power p1.

[0186] In the above embodiment, the first device sends the first carrier at different powers in different time periods, so that the second device can first collect RF energy and then backscatter based on the received CW.

[0187] Example 3:

[0188] In some embodiments, the first carrier includes a second carrier and a third carrier, the second carrier is used to provide radio frequency energy to the second device, and the third carrier is used to cause the second device to perform backscattering.

[0189] In some embodiments, the first device transmits the second carrier to the second device at a transmit power, wherein the third carrier is transmitted by the third device to the second device.

[0190] In some embodiments, the first device transmits a third carrier to the second device at a transmit power, wherein the second carrier is transmitted by the third device to the second device.

[0191] The transmission power of the first device may be a preset power or a power determined based on the first information.

[0192] The first device is at least one of a network device, a terminal, an intermediate node, and an auxiliary node, capable of sending downlink information to a second device and receiving uplink information from the second device. The second device is at least one of an A-IoT device, an A-IoT terminal, and an A-IoT tag. The third device is at least one of a network device, a terminal, an intermediate node, and an auxiliary node, capable of sending downlink information to the second device but unable to receive uplink information from the second device.

[0193] For example, node device 1 and node device 2 may be a base station and an intermediate node, or a base station and another node, or another node and a base station, or an intermediate node and another node, or another node and an intermediate node, respectively.

[0194] In some embodiments, the first device may send the second carrier or the third carrier to one second device, or may send the second carrier or the third carrier to multiple second devices.

[0195] In some embodiments, the transmission times of the second carrier and the third carrier are the same or different.

[0196] In some embodiments, at a first time, the first device transmits the second carrier to the second device at a first transmit power, and the third device transmits the third carrier to the second device at a second transmit power. Alternatively, at a second time, the first device transmits the second carrier to the second device at the first transmit power, and at a third time, the third device transmits the third carrier to the second device at the second transmit power, where the second time and the third time are different.

[0197] In some embodiments, at a first time, the first device transmits the third carrier to the second device at the second transmit power, and the third device transmits the second carrier to the second device at the first transmit power. Alternatively, at a second time, the first device transmits the third carrier to the second device at the second transmit power, and at a third time, the third device transmits the second carrier to the second device at the first transmit power, where the second time is different from the third time.

[0198] For example, different node devices provide CW1 for A-IOT device to collect radio frequency energy and CW2 for A-IOT device to backscatter. Node device 1 is a first device, and node device 2 is a third device.

[0199] For example, node device 1 provides CW1, and node device 1 dynamically determines the power value p1 for sending CW1. CW2 is provided by node device 2, and node device 2 sends CW2 at a constant power p2.

[0200] For example, node device 1 sends CW1 at a constant power p1, and node device 2 sends CW2 at a constant power p2.

[0201] For example, node device 1 dynamically determines the power p1 for sending CW1, and node device 2 dynamically determines the power p2 for sending CW2.

[0202] For example, node device 1 sends CW1 at a constant power p1, and node device 2 dynamically determines the power p2 for sending CW2.

[0203] In the above embodiment, different devices transmit the first carrier wave, which can reduce interference between the device that collects radio frequency energy and the device that performs backscattering.

[0204] Step 2103: The third device sends the first carrier to the second device.

[0205] In some embodiments, the first carrier includes a second carrier and a third carrier. The first carrier is used to provide radio frequency energy to the second device, and the second carrier is used to enable the second device to perform backscattering.

[0206] In some embodiments, the third device transmits a third carrier to the second device at a transmission power, wherein the second carrier is transmitted by the first device to the second device. The transmission power may be a preset power or may be dynamically determined based on the first information.

[0207] In some embodiments, the third device transmits the second carrier to the second device at a transmit power, where the third carrier is transmitted from the first device to the second device. The transmit power may be a preset power or may be dynamically determined based on the first information.

[0208] The first device is at least one of a network device, a terminal, an intermediate node, and an auxiliary node, capable of sending downlink information to a second device and receiving uplink information from the second device. The second device is at least one of an A-IoT device, an A-IoT terminal, and an A-IoT tag. The third device is at least one of a network device, a terminal, an intermediate node, and an auxiliary node, capable of sending downlink information to the second device but unable to receive uplink information from the second device.

[0209] For example, node device 1 and node device 2 may be a base station and an intermediate node, or a base station and another node, or another node and a base station, or an intermediate node and another node, or another node and an intermediate node, respectively.

[0210] In some embodiments, the third device may send the third carrier or the second carrier to one second device, or may send the third carrier or the second carrier to multiple second devices.

[0211] In some embodiments, the transmission times of the second carrier and the third carrier are the same or different.

[0212] In some embodiments, at a first time, the first device transmits the second carrier to the second device at a first transmit power, and the third device transmits the third carrier to the second device at a second transmit power. Alternatively, at a second time, the first device transmits the second carrier to the second device at the first transmit power, and at a third time, the third device transmits the third carrier to the second device at the second transmit power, where the second time and the third time are different.

[0213] In some embodiments, at a first time, the first device transmits the third carrier to the second device at the second transmit power, and the third device transmits the second carrier to the second device at the first transmit power. Alternatively, at a second time, the first device transmits the third carrier to the second device at the second transmit power, and at a third time, the third device transmits the second carrier to the second device at the first transmit power, where the second time is different from the third time.

[0214] For example, different node devices provide CW1 for A-IOT device to collect radio frequency energy and CW2 for A-IOT device to backscatter. Node device 1 is a first device, and node device 2 is a third device.

[0215] For example, node device 1 provides CW1, and node device 1 dynamically determines the power value p1 for sending CW1. CW2 is provided by node device 2, and node device 2 sends CW2 at a constant power p2.

[0216] For example, node device 1 sends CW1 at a constant power p1, and node device 2 sends CW2 at a constant power p2.

[0217] For example, node device 1 dynamically determines the power p1 for sending CW1, and node device 2 dynamically determines the power p2 for sending CW2.

[0218] For example, node device 1 sends CW1 at a constant power p1, and node device 2 dynamically determines the power p2 for sending CW2.

[0219] In the above embodiment, different devices transmit the first carrier wave, which can reduce interference between the device that collects radio frequency energy and the device that performs backscattering.

[0220] The communication method involved in the embodiments of the present disclosure may include at least one of steps 2101 to 2103. For example, step 2101 can be implemented as an independent embodiment, step 2102 can be implemented as an independent embodiment, and so on, but the present invention is not limited thereto. Steps 2101+2102 and steps 2101+2102+2103 can be implemented as independent embodiments, but the present invention is not limited thereto.

[0221] In some embodiments, step 2103 is optional and may be omitted or replaced in different embodiments.

[0222] 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.

[0223] FIG3A is a flow chart of a communication method provided by a first device according to an embodiment of the present disclosure. The present disclosure embodiment relates to a communication method, the method comprising:

[0224] Step 3101, determine the transmission power.

[0225] The optional implementation of step 3101 can refer to the optional implementation of step 2101 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0226] Step 3102: Send the first carrier to the second device.

[0227] For optional implementations of step 3102, please refer to the optional implementations of step 2102 in FIG. 2 and other related parts in the embodiment involved in FIG. 2 , which will not be described in detail here.

[0228] The communication method involved in the embodiments of the present disclosure may include at least one of steps 3101 to 3102. For example, step 3101 may be implemented as an independent embodiment, and step 3102 may be implemented as an independent embodiment, and so on, but the present disclosure is not limited thereto.

[0229] FIG3B is a flow chart of a communication method provided by a first device according to an embodiment of the present disclosure. The present disclosure embodiment relates to a communication method, the method comprising:

[0230] Step 3201: Determine the transmit power of the first carrier.

[0231] Optional implementations of step 3201 can be found in step 2101 of FIG. 2 , optional implementations of step 3101 of FIG. 3A , and other related parts in the embodiments involved in FIG. 2 and FIG. 3A , which will not be described in detail here.

[0232] Step 3202: Send a first carrier to a second device at a transmission power.

[0233] The first carrier is used to provide radio frequency energy to the second device and / or to cause the second device to perform backscattering.

[0234] In an embodiment of the present disclosure, step 3201 may be combined with step 3102 in FIG. 3A .

[0235] FIG4 is a flow chart of a communication method provided by a third device according to an embodiment of the present disclosure. The present disclosure embodiment relates to a communication method, which includes:

[0236] Step 4101: Send a first carrier to a second device.

[0237] The optional implementation of step 4101 can refer to the optional implementation of step 2103 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0238] Figure 5A is a flow chart of a communication method for a second device according to an embodiment of the present disclosure. The present disclosure embodiment relates to a communication method, which includes:

[0239] Step 5101: Receive a first carrier sent by a first device.

[0240] The optional implementation of step 5101 can be found in the optional implementation of step 2102 in Figure 2, step 3102 in Figure 3A, step 3202 in Figure 3B, and other related parts in the embodiments involved in Figures 2, 3A, and 3B, which will not be repeated here.

[0241] Step 5102: Receive a first carrier sent by a third device.

[0242] The optional implementation of step 5102 can refer to the optional implementation of step 2103 in Figure 2, step 4101 in Figure 4, and other related parts in the embodiments involved in Figures 2 and 4, which will not be repeated here.

[0243] The communication method involved in the embodiment of the present disclosure may include at least one of steps 5101 to 5102. For example, step 5101 may be implemented as an independent embodiment, step 5102 may be implemented as an independent embodiment, and steps 5101+5102 may be implemented as independent embodiments.

[0244] In some embodiments, step 5102 is optional and may be omitted or replaced in different embodiments.

[0245] FIG5B is a flow chart of a communication method for a second device according to an embodiment of the present disclosure. The present disclosure embodiment relates to a communication method, which includes:

[0246] Step 5201: Receive a first carrier sent by a first device at a transmission power.

[0247] The first carrier is used to provide radio frequency energy to the second device and / or to cause the second device to perform backscattering.

[0248] For optional implementations of step 5201, please refer to step 2102 and step 2103 of Figure 2, step 3102 of Figure 3A, step 3202 of Figure 3B, step 4101 of Figure 4, step 5101 and step 5102 of Figure 5A, and other related parts in the embodiments involved in Figures 2, 3A, 3B, 4, and 5A, which will not be repeated here.

[0249] Figure 6 is an interactive diagram of a communication method provided according to an embodiment of the present disclosure. As shown in Figure 6, an embodiment of the present disclosure relates to a communication method, the method comprising:

[0250] Step 6101: The first device determines the transmit power of the first carrier.

[0251] The optional implementation of step 6101 can refer to the optional implementation of step 2101 in Figure 2, step 3101 in Figure 3A, step 3201 in Figure 3B, and other related parts in the embodiments involved in Figures 2, 3A, and 3B, which will not be repeated here.

[0252] Step 6102: The first device sends a first carrier to the second device at a transmission power.

[0253] The first carrier is used to provide radio frequency energy to the second device and / or to cause the second device to perform backscattering.

[0254] For the optional implementation of step 6102, please refer to step 2102 of Figure 2, step 3102 of Figure 3A, step 3202 of Figure 3B, step 5101 of Figure 5A, step 5201 of Figure 5B, and other related parts in the embodiments involved in Figures 2, 3A, 3B, 5A, and 5B, which will not be repeated here.

[0255] In some embodiments, the above method may include the method described in the above embodiments of the first device side, the second device side, the third device side, etc., which will not be repeated here.

[0256] 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.

[0257] The following are specific solutions provided by the embodiments of the present disclosure:

[0258] Example 1:

[0259] A CW is provided by the same node device, which is used for both RF energy collection and backscattering by the A-IOT device.

[0260] Optionally, the node device may be a first device, the CW may be a first carrier, and the A-IOT device may be a second device. The first carrier is used to provide radio frequency energy to the second device and also to perform backscattering by the second device.

[0261] 1. The node device sends CW using constant power.

[0262] Optionally, the node device may be a first device, and the first device sends the first carrier at a preset power.

[0263] 2. The node device dynamically determines the CW power value for transmission: The CW power value for transmission can be dynamically determined based on the distance from the A-IOT device or based on the information received from the A-IOT device. When the received A-IOT device information indicates a good link status, the CW is transmitted at power 1. When it indicates a poor link status, the CW is transmitted at power 2. Power 1 is less than power 2, and power 1 can also be less than the constant power P. Power 2 can be greater than the constant power P.

[0264] The power value for sending CW is dynamically determined based on the distance from the A-IOT device. The node device sending CW performs an RSSI test on the received A-IOT signal to determine the RSSI value. The RSSI value is then compared with the RSSI threshold. When the measured value is greater than the threshold, it indicates that the A-IOT device and the node device are close, and the node device uses power 1 to send CW. When the test value is less than the threshold, it indicates that the A-IOT device and the node device are far away, and CW is sent using power 2. Power 1 is less than power 2, and power 1 can also be less than the constant power P, while power 2 can be greater than the constant power P. That is, the higher the RSSI test value, the lower the transmit power used to send CW. That is, the lower the RSSI test value, the higher the transmit power used to send CW.

[0265] Optionally, the first device dynamically determines a transmit power based on the first information, and transmits the first carrier at the transmit power. The A-IOT device information may be the first information.

[0266] Optionally, power 1 is the first power and power 2 is the second power.

[0267] Optionally, a good link state or a close distance between the node device and the A-IOT device can be a preset condition. When the first information meets the preset condition, the first power is determined as the transmission power. When the first information does not meet the preset condition, the second power is determined as the transmission power.

[0268] The node device provides CW for a certain A-IOT device in a one-to-one manner, or provides CW for multiple A-IOT devices in a one-to-many manner.

[0269] Optionally, the first device sends the first carrier to one second device at a transmission power, or sends the first carrier to multiple second devices.

[0270] In topology 1, the node device is a base station or another node device other than a base station or an A-IoT device. In topology 2, the node device is an intermediate node device, which can be a relay, IAB node, UE, repeater, etc., or another node device other than a base station, an intermediate node, or an A-IoT device. When the node device is an intermediate node device or a node device outside of this topology, the constant power is predefined or preconfigured by higher-layer signaling or dynamically indicated by physical layer signaling. When the node device is a base station, the constant power is predefined by the base station or defined by the protocol.

[0271] The power of the CW of the RF energy provided by the node device is greater than the minimum power threshold Pmin, which is predefined or preconfigured by high-layer signaling, or dynamically indicated by physical layer signaling, or the minimum power threshold is jointly determined by the activation power value of the A-IOT device, and / or the path loss value, and / or the power amplification value, such as the minimum power threshold is equal to the activation power value of the A-IOT device + the path loss value ± the power amplification value. The activation power value of the A-IOT device can be the power value at which the A-IOT device is in a working state and can receive downlink information, or the power value at which the A-IOT device is in a working state and can perform backscattering uplink transmission.

[0272] The activation power values ​​for different A-IoT devices can be the same or different. For example, a device with a peak power consumption of 1uW can have different activation power values ​​than a device with a peak power consumption of several hundreduW. The activation power value of a device with a peak power consumption of 1uW is lower than that of a device with a peak power consumption of several hundreduW. The maximum power of a CW transmission cannot exceed PCMAX.

[0273] Example 2:

[0274] The same node device provides two types of CW: CW1 for A-IOT devices to collect RF energy, and CW2 for A-IOT devices to perform backscattering.

[0275] Optionally, CW1 may be a second carrier, CW2 may be a third carrier, the first carrier is used to provide radio frequency energy to the second device, and the third carrier is used to enable the second device to perform backscattering.

[0276] Optionally, the first device sends the second carrier to the second device at a first transmission power, and sends the third carrier to the second device at a second transmission power.

[0277] 1. The node device uses constant power p1 to send CW1 and constant power p2 to send CW2. p1 and p2 can be equal or unequal. When p1 and p2 are unequal, the power of p1 is greater than p2, or p1 is less than p2.

[0278] When the node device is an intermediate node device or a node device outside the topology structure, the values ​​of the constant powers p1 and p2 are predefined or preconfigured by high-layer signaling, or dynamically indicated by physical layer signaling. When the node device is a base station, they are predefined by the base station or defined by the protocol.

[0279] The node device sends CW1 and CW2 via TDM.

[0280] 2. The node device dynamically determines the power value p1 for sending CW1 and the power value p2 for sending CW2, wherein the method of dynamic determination is the same as the method of dynamic determination in the first embodiment.

[0281] 3. The node device dynamically determines the power value p1 for sending CW1. The method of dynamic determination is the same as that in the first embodiment. CW2 is sent at a constant power p2.

[0282] 4. The node device dynamically determines the power value p2 for sending CW2. The method for dynamically determining the power for sending CW is the same as that in the first embodiment. CW1 is sent at a constant power p1.

[0283] Optionally, the node device sends CW1 and CW2 in a time division multiplexing manner, with CW1 being sent first and CW2 being sent later, or sending CW1 with p1 and sending CW2 with p2 in a cyclic alternating manner.

[0284] Example 3:

[0285] Different node devices provide CW1 for A-IOT devices to collect RF energy and CW2 for A-IOT devices to backscatter.

[0286] 1. Node device 1 provides CW1 and dynamically determines the power value p1 for sending CW1. The dynamic determination method is the same as that in embodiment 1. Node device 2 provides CW2 and sends CW2 at a constant power p2.

[0287] 2. Node device 1 sends CW1 at a constant power p1, and node device 2 sends CW2 at a constant power p2.

[0288] 3. Node device 1 dynamically determines the power p1 for sending CW1, and node device 2 dynamically determines the power p2 for sending CW2. The dynamic determination method is the same as that in the first embodiment.

[0289] 4. Node device 1 sends CW1 at a constant power p1, and node device 2 dynamically determines the power value p2 for sending CW2. The dynamic determination method is the same as that in the first embodiment.

[0290] Optionally, the first device sends the second carrier to the second device at a first transmission power, and the third device sends the third carrier to the second device at a second transmission power.

[0291] Optionally, the first device sends the third carrier to the second device at the second transmission power, and the third device sends the second carrier to the second device at the first transmission power.

[0292] Based on the above four modes, the node device 1 may be a base station, an intermediate node device (such as a relay, an IAB node, a UE, a repeater), or another node device.

[0293] Optionally, CW1 may be the second carrier, and CW3 may be the third carrier. The first device transmits the third carrier to the second device at a transmit power, and the third device transmits the second carrier to the second device at a transmit power, or the first device transmits the second carrier to the second device at a transmit power, and the third device transmits the third carrier to the second device at a transmit power. The transmit power may be a preset power or may be determined based on the first information.

[0294] In the topology diagram shown in Figure 7, in topology 1, node device 1 and node device 2 can be a base station and another node device, or another node device and a base station, respectively. Another node device is a node device other than the base station and the A-IOT device, that is, a node device outside of topology 1. In topology 2, node device 1 and node device 2 can be a base station and an intermediate node device, or a base station and another node device, or another node device and a base station, or an intermediate node device and another node device, or another node device and an intermediate node device. Another node device is another node device other than the base station, the intermediate node device, and the A-IOT device, that is, another node device outside of topology 2.

[0295] Node device 1 provides radio frequency energy to a certain A-IOT device in a one-to-one manner, or provides radio frequency energy to multiple A-IOT devices in a one-to-many manner, and node device 2 provides CW2 for backscattering to a certain A-IOT device in a one-to-one manner, or provides CW2 for backscattering to multiple A-IOT devices in a one-to-many manner.

[0296] In the embodiments of the present disclosure, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations of other embodiments.

[0297] 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.

[0298] 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.

[0299] In the embodiment of the present disclosure, the processor is a circuit with signal processing capability. In one implementation, the processor can be a circuit with instruction reading and execution capability, 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, and the logical relationship of the above hardware circuit is fixed or reconfigurable, such as a hardware circuit implemented by a processor as 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.

[0300] FIG8A is a schematic diagram of the structure of a first device according to an embodiment of the present disclosure. As shown in FIG8A , the first device 8100 includes a processing module 8101 and a transceiver module 8102 .

[0301] In some embodiments, the processing module is used to determine the transmit power of the first carrier.

[0302] Optionally, the above-mentioned processing module is used to execute at least one of the communication steps (such as step 2101, step 3101, step 3201, but not limited to these) such as processing performed by the first device 8100 in any of the above methods, which will not be repeated here.

[0303] In some embodiments, the transceiver module is used to transmit a first carrier wave to the second device at a transmission power, and the first carrier wave is used to provide radio frequency energy to the second device and / or to enable the second device to perform backscattering.

[0304] Optionally, the above-mentioned transceiver module is used to execute at least one of the sending or receiving steps (for example, steps 2102, 2103, step 3102, step 3203, but not limited to these) performed by the first device 8100 in any of the above methods, which will not be repeated here.

[0305] FIG8B is a schematic diagram of the structure of a second device according to an embodiment of the present disclosure. As shown in FIG8B , the second device 8200 may include a transceiver module 8201 .

[0306] In some embodiments, the transceiver module is used to receive a first carrier transmitted by a first device at a transmission power, and the first carrier is used to provide radio frequency energy to a second device and / or to enable the second device to perform backscattering.

[0307] Optionally, the above-mentioned transceiver module is used to execute at least one of the communication steps such as sending and / or receiving performed by the second device 8200 in any of the above methods (for example, step 2102, step 2103, step 5101, step 5102, but not limited to these), which will not be repeated here.

[0308] Figure 9A is a schematic diagram of the structure of a communication device 9100 provided according to an embodiment of the present disclosure. Communication device 9100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user device, 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 9100 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.

[0309] As shown in Figure 9A, the communication device 9100 includes one or more processors 9101. The processor 9101 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 the communication protocol 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. Optionally, the communication device 9100 is used to perform any of the above methods. Optionally, one or more processors 9101 are used to call instructions to enable the communication device 9100 to perform any of the above methods.

[0310] In some embodiments, the communication device 9100 further includes one or more transceivers 9102. When the communication device 9100 includes one or more transceivers 9102, the transceiver 9102 performs at least one of the communication steps (e.g., steps 2102, 2103, 3102, 3202, 4101, 5101, 5102, and 6102) of the above method, and the processor 9101 performs at least one of the other steps (e.g., steps 2101, 3101, 3201, and 6101, but not limited thereto). In alternative embodiments, the transceiver may include a receiver and / or a transmitter, and the receiver and transmitter may be separate or integrated. Optionally, terms such as transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, and interface can be replaced with each other, terms such as transmitter, transmitting unit, transmitter, and transmitting circuit can be replaced with each other, and terms such as receiver, receiving unit, receiver, and receiving circuit can be replaced with each other.

[0311] In some embodiments, the communication device 9100 further includes one or more memories 9103 for storing data. Alternatively, all or part of the memories 9103 may be located outside the communication device 9100. In alternative embodiments, the communication device 9100 may include one or more interface circuits 9104. Optionally, the interface circuits 9104 are connected to the memory 9102 and may be configured to receive data from the memory 9102 or other devices, or to send data to the memory 9102 or other devices. For example, the interface circuits 9104 may read data stored in the memory 9102 and send the data to the processor 9101.

[0312] In some embodiments, the processor 9101 may store a computer program 9105. The computer program 9105 runs on the processor 9101, enabling the communication device 9000 to perform the method described in the above method embodiment. The computer program 9105 may be fixed in the processor 9101. In this case, the processor 9101 may be implemented by hardware.

[0313] The communication device 9100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 9100 described in the present disclosure is not limited thereto, and the structure of the communication device 9100 may not be limited by FIG. 9A. 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.

[0314] 9B is a schematic diagram of the structure of a chip 9200 according to an embodiment of the present disclosure. If the communication device 9100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 9200 shown in FIG9B , but the present disclosure is not limited thereto.

[0315] The chip 9200 includes one or more processors 9201. The chip 9200 is configured to execute any of the above methods.

[0316] In some embodiments, chip 9200 further includes one or more interface circuits 9202. Terms such as interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 9200 further includes one or more memories 9203 for storing data. Alternatively, all or part of memory 9203 may be located external to chip 9200. Optionally, interface circuit 9202 is connected to memory 9203 and may be used to receive data from memory 9203 or other devices, or may be used to send data to memory 9203 or other devices. For example, interface circuit 9202 may read data stored in memory 9203 and send the data to processor 9201.

[0317] In some embodiments, the interface circuit 9202 performs at least one of the communication steps (e.g., steps 2102, 2103, 3102, 3202, 4101, 5101, 5102, and 6102) of the aforementioned method. The interface circuit 9202 performing the communication steps (e.g., steps 2102, 2103, 3102, 3202, 4101, 5101, 5102, and 6102) of the aforementioned method, for example, means that the interface circuit 9202 performs data exchange between the processor 9201, chip 9200, memory 9203, or a transceiver device. In some embodiments, the processor 9201 performs at least one of the other steps (e.g., steps 2101, 3101, 3201, and 6101, but not limited thereto).

[0318] The modules and / or devices described in various embodiments, such as virtual devices, physical devices, and chips, can be arbitrarily combined or separated according to circumstances. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0319] The present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 9100, causes the communication device 9100 to execute 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.

[0320] The present disclosure also provides a program product, which, when executed by the communication device 9100, enables the communication device 9100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0321] 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.

Claims

1. A communication method based on environmental Internet of Things, characterized in that: The method is performed by a first device, and includes: determining a transmit power of the first carrier; A first carrier is sent to the second device at the transmit power, where the first carrier is used to provide radio frequency energy to the second device and / or to enable the second device to perform backscattering.

2. The method according to claim 1, characterized in that The determining the transmit power of the first carrier includes: Determining that the transmit power is a preset power, where the preset power is a constant value; or, The transmit power is dynamically determined based on first information, where the first information is used to identify a link status between the first device and the second device.

3. The method according to claim 2, characterized in that Determining that the transmit power is a preset power, wherein the preset power is a constant value, includes: In the case where the first device is a network device, determining the preset power based on protocol predefinition; In the case where the first device is an intermediate node, the preset power is determined based on an indication of a network device, the intermediate node is capable of communicating with the network device and the second device, and the intermediate node includes at least one of a terminal, a repeater, a transponder, and an integrated access and backhaul IAB node.

4. The method according to claim 2, characterized in that The dynamically determining the transmit power based on the first information includes: When the first information satisfies a preset condition, determining that the transmit power is a first power; When the first information does not meet a preset condition, the transmission power is determined to be a second power, and the first power is less than the second power.

5. The method according to any one of claims 1 to 4, characterized in that The sending the first carrier to the second device at the transmit power includes: transmitting the first carrier to a second device at the transmitting power, where the first carrier is used to provide radio frequency energy to the second device and / or to cause the second device to perform backscattering; or, The first carrier is transmitted to multiple second devices at the transmission power, where the first carrier is used to provide radio frequency energy to the multiple second devices and / or to enable the multiple second devices to perform backscattering.

6. The method according to any one of claims 1 to 4, characterized in that The first carrier includes a second carrier and a third carrier, the second carrier is used to provide radio frequency energy to the second device, and the third carrier is used to cause the second device to perform backscattering; and sending the first carrier to the second device at the transmit power includes: transmitting the second carrier to the second device at a first transmit power; The third carrier is transmitted to the second device at a second transmission power.

7. The method according to claim 6, characterized in that The transmission time of the second carrier and the third carrier is the same or different.

8. The method according to claim 7, characterized in that The determining of the transmit power of the first carrier includes any one of the following: Determining the first transmit power to be a preset power, where the preset power is a constant value; and dynamically determining the second transmit power based on first information, where the first information is used to identify a link status between the first device and the second device; determining that the second transmit power is a preset power, and dynamically determining the first transmit power based on the first information; Determining that the first transmit power and the second transmit power are both preset powers; The first transmit power and the second transmit power are dynamically determined based on first information.

9. The method according to any one of claims 1 to 4, characterized in that The first carrier includes a second carrier and a third carrier, the second carrier is used to provide radio frequency energy to the second device, and the third carrier is used to cause the second device to perform backscattering; and sending the first carrier to the second device at the transmit power includes: transmitting the second carrier to the second device at the transmit power, wherein the third carrier is transmitted by the third device to the second device; or, The third carrier is transmitted to the second device at the transmission power, wherein the second carrier is transmitted by the third device to the second device.

10. The method according to claim 9, characterized in that The transmission time of the second carrier and the third carrier is the same or different.

11. The method according to claim 10, characterized in that The first device is at least one of a network device, a terminal, an intermediate node, and an auxiliary node, and the first device is capable of sending downlink information to the second device and receiving uplink information sent by the second device; The second device is at least one of an A-IOT device, an A-IOT terminal, and an A-IOT tag; The third device is at least one of a network device, a terminal, an intermediate node, and an auxiliary node. The third device can send downlink information to the second device but cannot receive uplink information sent by the second device.

12. A communication method based on environmental Internet of Things, characterized in that: The method is performed by a second device, and includes: A first carrier transmitted by a first device at a transmission power is received, where the first carrier is used to provide radio frequency energy to the second device and / or to cause the second device to perform backscattering.

13. The method according to claim 12, characterized in that The transmission power is a preset power, which is a constant value; or, the transmission power is dynamically determined by the first device based on first information, where the first information is used to identify a link status between the first device and the second device.

14. The method according to claim 13, characterized in that The first carrier includes a second carrier and a third carrier, the second carrier is used to provide radio frequency energy to the second device, and the third carrier is used to cause the second device to perform backscattering; The receiving a first carrier sent by the first device at a transmit power includes: receiving the second carrier sent by the first device at a first transmit power; The third carrier transmitted by the first device at the second transmission power is received.

15. The method according to claim 14, characterized in that The transmission time of the second carrier and the third carrier is the same or different.

16. The method according to claim 15, characterized in that The first transmit power is a preset power, which is a constant value; the second transmit power is dynamically determined by the first device based on first information, where the first information is used to identify a link status between the first device and the second device; The second transmit power is a preset power, and the first transmit power is dynamically determined by the first device based on the first information; The first transmit power and the second transmit power are both preset powers; The first transmit power and the second transmit power are both determined by the first device based on the first information.

17. The method according to any one of claims 12 to 13, characterized in that The first carrier includes a second carrier and a third carrier, the second carrier is used to provide radio frequency energy to the second device, and the third carrier is used to cause the second device to perform backscattering; The receiving a first carrier sent by the first device at a transmit power includes: receiving the second carrier sent by the first device at the transmit power; and receiving the third carrier sent by a third device; or, receiving the third carrier sent by the first device at the transmit power; and receiving the second carrier sent by the third device.

18. The method according to claim 17, characterized in that The transmission time of the second carrier and the third carrier is the same or different.

19. The method according to claim 18, characterized in that The first device is at least one of a network device, a terminal, an intermediate node, and an auxiliary node, and the first device is capable of sending downlink information to the second device and receiving uplink information sent by the second device; The second device is at least one of an A-IOT device, an A-IOT terminal, and an A-IOT tag; The third device is at least one of a network device, a terminal, an intermediate node, and an auxiliary node. The third device can send downlink information to the second device but cannot receive uplink information sent by the second device.

20. A first device, characterized in that: include: a processing module, configured to determine a transmit power of the first carrier; The transceiver module is configured to transmit a first carrier to the second device at the transmitting power, where the first carrier is used to provide radio frequency energy to the second device and / or to enable the second device to perform backscattering.

21. A second device, characterized in that: include: The transceiver module is configured to receive a first carrier transmitted by a first device at a transmission power, where the first carrier is used to provide radio frequency energy to the second device and / or to enable the second device to perform backscattering.

22. A communication device, wherein: include: transceiver; Memory; A processor is connected to the transceiver and the memory respectively, and is configured to control the wireless signal reception and transmission of the transceiver by executing computer-executable instructions on the memory, and can implement any one of the methods of claims 1-15.

23. A computer storage medium, wherein: The computer storage medium stores computer-executable instructions; after the computer-executable instructions are executed by the processor, the method according to any one of claims 1 to 19 can be implemented.

24. A communication system, characterized in that: The method comprises a first device and a second device, wherein the first device is configured to execute the method according to any one of claims 1 to 11, and the second device is configured to execute the method according to any one of claims 12 to 19.

25. The communication system according to claim 24, characterized in that The method further includes a third device, wherein, The first device is at least one of a network device, a terminal, an intermediate node, and an auxiliary node, and the first device is capable of sending downlink information to the second device and receiving uplink information sent by the second device; The second device is at least one of an A-IOT device, an A-IOT terminal, and an A-IOT tag; The third device is at least one of a network device, a terminal, an intermediate node, and an auxiliary node. The third device can send downlink information to the second device but cannot receive uplink information sent by the second device.

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