Communication method, terminal, node equipment, system and storage medium

Abstract

The invention relates to a communication method, a terminal, node equipment, a system and a storage medium. The method comprises the step that an environment Internet of Things (Ambent-IoT) terminal communicates with node equipment based on corresponding frequency domain information. In the method disclosed by the invention, the Ambent-IoT terminals can perform communication based on the respective corresponding frequency domain information, so that different Ambent-IoT terminals can perform communication by using the corresponding frequency domain resources, and the interference between different Ambent-IoT terminals in the communication process is reduced.

Description

Communication method, terminal, node device, system and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to a communication method, terminal, node device, system, and storage medium. Background Art

[0002] The Ambient Internet of Things (Ambient-IoT) is a type of IoT. Compared to cellular-based Narrowband Internet of Things (NB-IoT) terminals, Ambient-IoT terminals are less complex, less expensive, and require less maintenance. Ambient-IoT terminals are characterized by being battery-free and powered by received electromagnetic signals. Alternatively, they may contain a small amount of battery storage, but this battery does not require manual charging and instead draws a small amount of battery energy from external sources, such as electromagnetic waves, heat, kinetic energy, and so on. Therefore, Ambient-IoT terminals can also be called passive terminals.

[0003] Summary of the Invention

[0004] The Ambient-IoT system needs to support high-density connections and solve the interference problem between Ambient-IoT terminals in the Ambient-IoT system.

[0005] Embodiments of the present disclosure provide a communication method, a terminal, a node device, a system, and a storage medium.

[0006] In a first aspect, an embodiment of the present disclosure provides a communication method, the method comprising:

[0007] The Ambient-IoT terminal communicates with the node device based on the corresponding frequency domain information.

[0008] In a second aspect, an embodiment of the present disclosure provides a communication method, the method comprising:

[0009] The node device communicates with the Ambient-IoT terminal based on the frequency domain information corresponding to the Ambient-IoT terminal.

[0010] In a third aspect, an embodiment of the present disclosure provides an Ambient-IoT terminal, including:

[0011] The transceiver module is used for communication with the node device based on the corresponding frequency domain information domain.

[0012] In a fourth aspect, an embodiment of the present disclosure provides a node device, including:

[0013] The transceiver module is used to communicate with the Ambient-IoT terminal based on the frequency domain information corresponding to the Ambient-IoT terminal.

[0014] In a fifth aspect, an embodiment of the present disclosure provides an Ambient-IoT terminal, including:

[0015] one or more processors;

[0016] The terminal is used to execute the method of the first aspect.

[0017] In a sixth aspect, an embodiment of the present disclosure provides a node device, including:

[0018] one or more processors;

[0019] The device is used to execute the method of the second aspect.

[0020] In a seventh aspect, an embodiment of the present disclosure provides a communication system, including: an Ambient-IoT terminal and a node device, wherein:

[0021] The Ambient-IoT terminal is configured to implement the method of the first aspect;

[0022] The node device is configured to implement the method of the second aspect.

[0023] In an eighth aspect, an embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions, wherein:

[0024] When the instructions are executed on the communication device, the communication device is caused to execute the method of the first aspect or the second aspect.

[0025] In the method disclosed herein, Ambient-IoT terminals communicate based on their respective corresponding frequency domain information, so that different Ambient-IoT terminals can communicate using corresponding frequency domain resources, thereby reducing interference between communication processes of different Ambient-IoT terminals. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] 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.

[0027] FIG1 is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure;

[0028] FIG2a is an exemplary interaction diagram of a method provided according to an embodiment of the present disclosure;

[0029] FIG2 b is a frequency domain schematic diagram provided according to an embodiment of the present disclosure;

[0030] 3a to 3d are exemplary flowcharts of a method according to an embodiment of the present disclosure;

[0031] 4a to 4d are exemplary flowcharts of a method according to an embodiment of the present disclosure;

[0032] FIG5a is a schematic structural diagram of a terminal according to an embodiment of the present disclosure;

[0033] FIG5b is a schematic structural diagram of a node device according to an embodiment of the present disclosure;

[0034] FIG6a is a schematic diagram of a communication device according to an embodiment of the present disclosure;

[0035] FIG6 b is a schematic diagram of a communication device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0036] Embodiments of the present disclosure provide a communication method, a terminal, a node device, a system, and a storage medium.

[0037] In a first aspect, an embodiment of the present disclosure provides a communication method, the method comprising:

[0038] The Ambient-IoT terminal communicates with the node device based on the corresponding frequency domain information.

[0039] In the above embodiment, the Ambient-IoT terminals communicate based on their respective corresponding frequency domain information, so that different Ambient-IoT terminals can communicate using corresponding frequency domain resources, thereby reducing interference between communication processes of different Ambient-IoT terminals.

[0040] In conjunction with the embodiments of the first aspect, in some embodiments, the node device includes at least one of the following:

[0041] Downlink information sending equipment or network equipment;

[0042] Energy source node;

[0043] Uplink information receiving device.

[0044] In the above embodiment, according to different types of node devices, the Ambient-IoT terminal can communicate with different node devices based on corresponding frequency domain information, so as to reduce interference from other Ambient-IoT terminals during the process of transmitting information or data.

[0045] In conjunction with the embodiments of the first aspect, in some embodiments, the Ambient-IoT terminal communicates with the node device based on the corresponding frequency domain information, including at least one of the following:

[0046] The Ambient-IoT terminal receives downlink information sent by the downlink information sending device and / or receives downlink signals sent by the energy source node based on the corresponding frequency domain information;

[0047] The Ambient-IoT terminal sends uplink information to the information receiving device based on the corresponding frequency domain information.

[0048] In the above embodiment, for different node devices, the Ambient-IoT terminal can receive downlink information or send uplink information based on its own corresponding frequency domain information, so as to reduce interference from other Ambient-IoT terminals during the communication process.

[0049] In conjunction with the embodiments of the first aspect, in some embodiments, the frequency domain information includes at least one of the following:

[0050] Downlink operating frequencies supported by Ambient-IoT terminals;

[0051] Downlink bandwidth supported by Ambient-IoT terminals;

[0052] Uplink bandwidth supported by the Ambient-IoT terminal.

[0053] In the above embodiment, it is illustrated that the frequency domain information corresponding to the Ambient-IoT terminal may include uplink frequency domain information and / or downlink frequency domain information, so that effective uplink and downlink communications can be performed based on the frequency domain information corresponding to the Ambient-IoT terminal.

[0054] In combination with the embodiments of the first aspect, in some embodiments, the frequency domain information corresponding to the Ambient-IoT terminal meets the frequency domain requirements defined by the protocol.

[0055] In the above embodiment, the frequency domain requirements that different Ambient-IoT terminals must meet can be defined through the protocol, so that different Ambient-IoT terminals can occupy corresponding frequency domain information for communication, thereby reducing communication interference.

[0056] In conjunction with the embodiments of the first aspect, in some embodiments, the frequency domain requirement includes at least one of the following:

[0057] Multiple downlink operating frequencies;

[0058] Maximum downlink operating bandwidth;

[0059] Minimum downlink operating bandwidth;

[0060] Maximum uplink working bandwidth;

[0061] Among them, the downlink operating frequency is the central frequency defined by the protocol for downlink reception of the Ambient-IoT terminal, the maximum downlink operating bandwidth is the maximum value of the frequency width allowed for downlink operation of the Ambient-IoT terminal defined by the protocol, the minimum downlink operating bandwidth is the minimum value of the frequency width allowed for downlink operation of the Ambient-IoT terminal defined by the protocol, and the maximum uplink operating bandwidth is the maximum value of the frequency width allowed for uplink operation of the Ambient-IoT terminal defined by the protocol.

[0062] In the above embodiment, relevant frequency domain requirements defined by the protocol are illustrated. The Ambient-IoT terminal can communicate based on the corresponding frequency domain information when at least one of the frequency domain requirements is met.

[0063] In combination with the embodiments of the first aspect, in some embodiments, at least one of the maximum downlink operating bandwidth, the minimum downlink operating bandwidth, and the maximum uplink operating bandwidth is defined as multiple levels.

[0064] In the above embodiment, different levels of frequency domain requirements can be defined through the protocol to suit different Ambient-IoT terminals. For example, different levels of frequency domain requirements can be met by different Ambient-IoT terminals, so that different levels of frequency domain requirements can be used to divide or adapt to different channel bandwidths to reduce communication interference between different Ambient-IoT terminals.

[0065] In combination with the embodiments of the first aspect, in some embodiments, the maximum uplink operating bandwidth is determined based on the operating frequency of the energy source node and a frequency offset based on the operating frequency.

[0066] In the above embodiment, the uplink transmission of the Ambient-IoT terminal needs to rely on the energy source node. The uplink frequency requirements that the Ambient-IoT terminal needs to meet can be defined based on the working frequency of the energy source node to ensure that the Ambient-IoT terminal can effectively send uplink information.

[0067] In combination with the embodiments of the first aspect, in some embodiments, each downlink operating frequency point among the multiple downlink operating frequency points corresponds to at least one of the following frequency domain requirements: maximum downlink operating bandwidth, minimum downlink operating bandwidth, and maximum uplink operating bandwidth.

[0068] In the above embodiment, for different downlink operating frequencies, each downlink operating frequency defines a corresponding downlink operating bandwidth and / or uplink operating bandwidth, so that the Ambient-IoT terminal can communicate based on a corresponding set of frequency domain information.

[0069] In conjunction with the embodiments of the first aspect, in some embodiments, the node device includes a network device, and the method further includes:

[0070] The Ambient-IoT terminal sends capability information to the network device. The capability information includes frequency domain information corresponding to the Ambient-IoT terminal.

[0071] In the above embodiment, the Ambient-IoT terminal may send capability information to the node device to report the frequency domain information supported by itself, so that the node device can communicate with the Ambient-IoT terminal based on the frequency domain information.

[0072] In conjunction with the embodiments of the first aspect, in some embodiments, the node device includes a downlink information sending device, and the method further includes:

[0073] The Ambient-IoT terminal receives instruction information sent by the downlink information sending device, where the instruction information is used to instruct the Ambient-IoT terminal whose frequency domain information meets the set conditions to communicate.

[0074] In the above embodiment, the Ambient-IoT terminal receives the indication information sent by the node device and promptly learns whether this communication is required. For example, if the set conditions are met, this communication will be carried out; if the set conditions are not met, this communication will not be carried out, thereby reducing communication interference between different Ambient-IoT terminals.

[0075] In a second aspect, an embodiment of the present disclosure provides a communication method, the method comprising:

[0076] The node device communicates with the Ambient-IoT terminal based on the frequency domain information corresponding to the Ambient-IoT terminal.

[0077] In the above embodiment, the node device communicates with the corresponding Ambient-IoT terminal based on the frequency domain information corresponding to each Ambient-IoT terminal, so that different frequency domain resources can be used when communicating with different Ambient-IoT terminals, thereby reducing interference between the communication processes with different Ambient-IoT terminals.

[0078] In conjunction with the embodiments of the second aspect, in some embodiments, the node device includes at least one of the following:

[0079] Downlink information sending equipment or network equipment;

[0080] Energy source node;

[0081] Uplink information receiving device.

[0082] In conjunction with the embodiments of the second aspect, in some embodiments, the node device communicates with the Ambient-IoT terminal based on the frequency domain information corresponding to the Ambient-IoT terminal, including at least one of the following:

[0083] The downlink information sending device sends downlink information to the Ambient-IoT terminal based on the frequency domain information corresponding to the Ambient-IoT terminal, and / or the energy source node sends a downlink signal to the Ambient-IoT terminal based on the frequency domain information corresponding to the Ambient-IoT terminal;

[0084] The uplink information receiving device receives uplink information sent by the Ambient-IoT terminal based on the frequency domain information corresponding to the Ambient-IoT terminal.

[0085] In conjunction with the embodiments of the second aspect, in some embodiments, the frequency domain information includes at least one of the following:

[0086] Downlink operating frequencies supported by Ambient-IoT terminals;

[0087] Downlink bandwidth supported by Ambient-IoT terminals;

[0088] Uplink bandwidth supported by the Ambient-IoT terminal.

[0089] In combination with the embodiments of the second aspect, in some embodiments, the frequency domain information corresponding to the Ambient-IoT terminal meets the frequency domain requirements defined by the protocol.

[0090] In conjunction with the embodiments of the second aspect, in some embodiments, the frequency domain requirement includes at least one of the following:

[0091] Multiple downlink operating frequencies;

[0092] Maximum downlink operating bandwidth;

[0093] Minimum downlink operating bandwidth;

[0094] Maximum uplink working bandwidth;

[0095] Among them, the downlink operating frequency is the central frequency defined by the protocol for downlink reception of the Ambient-IoT terminal, the maximum downlink operating bandwidth is the maximum value of the frequency width allowed for downlink operation of the Ambient-IoT terminal defined by the protocol, the minimum downlink operating bandwidth is the minimum value of the frequency width allowed for downlink operation of the Ambient-IoT terminal defined by the protocol, and the maximum uplink operating bandwidth is the maximum value of the frequency width allowed for uplink operation of the Ambient-IoT terminal defined by the protocol.

[0096] In combination with the embodiments of the second aspect, in some embodiments, at least one of the maximum downlink operating bandwidth, the minimum downlink operating bandwidth, and the maximum uplink operating bandwidth is defined as multiple levels.

[0097] In combination with the embodiments of the second aspect, in some embodiments, the maximum uplink operating bandwidth is determined based on the operating frequency of the energy source node and a frequency offset based on the operating frequency.

[0098] In combination with the embodiments of the second aspect, in some embodiments, each downlink operating frequency point among the multiple downlink operating frequency points corresponds to at least one of the following frequency domain requirements: maximum downlink operating bandwidth, minimum downlink operating bandwidth, and maximum uplink operating bandwidth.

[0099] In conjunction with the embodiments of the second aspect, in some embodiments, the node device includes a network device, and the method further includes:

[0100] The network device receives capability information of the Ambient-IoT terminal, where the capability information includes frequency domain information corresponding to the Ambient-IoT terminal, or

[0101] Network devices obtain capability information of Ambient-IoT terminals from core network devices.

[0102] In conjunction with the embodiments of the second aspect, in some embodiments, the node device includes a downlink information sending device, and the method further includes:

[0103] The downlink information sending device sends instruction information to the Ambient-IoT terminal, where the instruction information is used to instruct the Ambient-IoT terminal whose frequency domain information meets the set conditions to communicate.

[0104] In a third aspect, an embodiment of the present disclosure provides an Ambient-IoT terminal, including:

[0105] The transceiver module is used for communication with the node device based on the corresponding frequency domain information domain.

[0106] In a fourth aspect, an embodiment of the present disclosure provides a node device, including:

[0107] The transceiver module is used to communicate with the Ambient-IoT terminal based on the frequency domain information corresponding to the Ambient-IoT terminal.

[0108] In a fifth aspect, an embodiment of the present disclosure provides an Ambient-IoT terminal, including:

[0109] one or more processors;

[0110] The terminal is used to execute the method of the first aspect.

[0111] In a sixth aspect, an embodiment of the present disclosure provides a node device, including:

[0112] one or more processors;

[0113] The device is used to execute the method of the second aspect.

[0114] In a seventh aspect, an embodiment of the present disclosure provides a communication system, including: an Ambient-IoT terminal and a node device, wherein:

[0115] The Ambient-IoT terminal is configured to implement the method of the first aspect;

[0116] The node device is configured to implement the method of the second aspect.

[0117] In an eighth aspect, an embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions, wherein:

[0118] When the instructions are executed on the communication device, the communication device is caused to execute the method of the first aspect or the second aspect.

[0119] In a ninth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the optional implementation of the first and second aspects.

[0120] In a tenth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first and second aspects.

[0121] In an eleventh aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first and second aspects above.

[0122] It is understandable that the above-mentioned terminals, network devices, communication systems, storage media, program products, computer programs, chips, or chip systems 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.

[0123] 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.

[0124] 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.

[0125] 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.

[0126] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0127] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0128] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0129] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0130] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0131] 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.

[0132] 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.

[0133] 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.

[0134] 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.

[0135] In some embodiments, devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0136] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0137] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)", "base station (BS)", "radio base station", "fixed station", and in some embodiments may also be understood as "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission and / or reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)", etc.

[0138] In some embodiments, "terminal" or "terminal device" may be referred to as "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.

[0139] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0140] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0141] 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.

[0142] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0143] As shown in FIG1 , a communication system 100 includes a terminal and a node device. The terminal may be an Ambient-IoT terminal 101. The node device may include at least one of a downlink information transmitting device 102, an energy source node 103, and an uplink information receiving device 104. For example, the downlink information transmitting device 102 and the energy source node 103 may be integrated into one device, or the downlink information transmitting device 102 and the uplink information receiving device 104 may be integrated into one device, or the energy source node 103 and the uplink information receiving device 104 may be integrated into one device, or the downlink information transmitting device 102, the energy source node 103, and the uplink information receiving device 104 may be integrated into one device.

[0144] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0145] In some embodiments, the power acquisition and storage capabilities of the Ambient-IoT terminal 101 vary depending on the type and operating mode of the Ambient-IoT terminal 101. The types of Ambient-IoT terminals 101 include the following three:

[0146] Device A: Has no energy storage capability and cannot independently generate or amplify signals. For example, Device A uses backscattering transmission, also known as backscatter communications.

[0147] Device B: Has energy storage capabilities but cannot independently generate signals. For example, Device B uses backscattering, where the stored energy is used to amplify reflected signals.

[0148] Device C: has energy storage capabilities and can independently generate signals, such as a radio frequency (RF) module that actively sends signals.

[0149] Among the three types of Ambient-IoT terminals 101 described above, device C has the strongest capabilities and the highest terminal cost. Device A has the weakest capabilities and the lowest terminal cost. Furthermore, since devices A and B can only operate in backscatter mode and cannot actively transmit signals, their supported coverage range is smaller. However, the power consumption of device A or device B in this operating mode is much lower than that of device C.

[0150] In some embodiments, when the downlink information sending device 102 is a network device, the network device may include at least one of an access network device and a core network device.

[0151] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a wireless fidelity (WiFi) system, but is not limited thereto.

[0152] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0153] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0154] In some embodiments, the core network device can be a device including one or more network elements, or it can be multiple devices or device groups, each including all or part of one or more network elements. The network element can be virtual or physical. The core network includes, for example, at least one of the Evolved Packet Core (EPC), the 5G Core Network (5GCN), and the Next Generation Core (NGC). Alternatively, the core network device refers to a network element with a specific function, such as the Access Management Function (AMF), the Service Management Function (SMF), etc.

[0155] In some embodiments, the energy source node 103 may be a node that provides energy to the Ambient-IoT terminal 101, such as a node that provides continuous electromagnetic waves (CW node). In conjunction with the description of the preceding embodiments, the energy source node 103 may be either a standalone node or a node that communicates with the Ambient-IoT terminal 101, such as a network device or a user equipment (UE) for receiving uplink information.

[0156] In some embodiments, the uplink information receiving device 104 may be another terminal or UE other than the Ambient-IoT terminal 101, and is configured to receive uplink information sent by the Ambient-IoT terminal 101. For example, the uplink information receiving device 104 receives uplink information sent by the Ambient-IoT terminal 101 based on a backscattering communication method.

[0157] 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 provided by 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 provided by the embodiment of the present disclosure is also applicable to similar technical problems.

[0158] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG. a or a part of the main body thereof, but are not limited thereto.

[0159] The entities shown in Figure 1 are examples. The communication system may include all or part of the entities in Figure 1, and may also include other entities outside of Figure 1. The number and form of the entities are arbitrary. The connection relationship between the entities is an example. The entities may be connected or disconnected, and the connection may be in any manner, which may be direct or indirect, and may be wired or wireless.

[0160] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication processing methods, and next-generation systems based on and extending these. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0161] In the disclosed embodiment, the Ambient-IoT terminal 101 can communicate based on the backscattering method. Backscatter communication is an extremely low-power modulation and transmission technology that uses the principle of backscattering of radio frequency signals. In backscatter communication, a part of the radio frequency signal will be reflected when it reaches the surface of an object, and the sending node adjusts the matching between its own receiving antenna and impedance according to the information to be sent, enhances the reflection of the incident radio frequency signal, and modulates the perception data obtained by itself onto the reflected signal to complete the transmission of the data. Compared with other communication technologies, backscatter communication does not require a complex radio frequency structure, reduces the use of devices such as power amplifiers, high-precision crystal oscillators, duplexers, high-precision filters, and does not require complex baseband processing. Therefore, it can simplify the terminal design and significantly reduce the cost of terminal nodes.

[0162] In some embodiments, backscatter communication can be applied to radio frequency identification (RFID) systems. In RFID systems, a receiver (typically an RFID reader) transmits a radio frequency excitation signal to activate a passive node (typically an RFID tag). The tag then uses backscatter communication to modulate its information onto the radio frequency excitation signal. The RFID reader then receives and demodulates the reflected signal from the passive tag, enabling information transmission. However, RFID technology has the following disadvantages: limited coverage distance, single-channel transmission, strict tag alignment requirements, and no power control. The limited coverage distance of RFID technology stems from the fact that wireless signals experience double-path fading during their round trip, resulting in high path loss and a short effective communication range.

[0163] In the disclosed embodiments, the Ambient-IoT system needs to support high-density connections compared to RFID technology, and has higher requirements for network capacity and interference management in the network. It also requires an Ambient-IoT communication method that effectively reduces interference in the network.

[0164] Figure 2a is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 2a, the embodiment of the present disclosure relates to a communication method, the method comprising:

[0165] In step S2101 , the downlink information sending device 102 obtains capability information of the Ambient-IoT terminal 101 .

[0166] Optionally, the downlink information sending device 102 is, for example, a network device, such as a base station.

[0167] Optionally, the capability information includes frequency domain information corresponding to the Ambient-IoT terminal 101 .

[0168] In some embodiments, the frequency domain information corresponding to the Ambient-IoT terminal 101 may include at least one of the following:

[0169] Downlink operating frequency supported by the Ambient-IoT terminal 101;

[0170] The downlink operating bandwidth supported by the Ambient-IoT terminal 101;

[0171] The uplink working bandwidth supported by the Ambient-IoT terminal 101.

[0172] Optionally, the downlink operating bandwidth includes a downlink operating frequency. The downlink operating bandwidth supported by the Ambient-IoT terminal 101 indicates the frequency range or frequency width supported by the Ambient-IoT terminal 101 for downlink reception. Within this downlink operating bandwidth, the Ambient-IoT terminal 101 can receive all downlink signals within this bandwidth, including downlink instructions or downlink information sent by the downlink information sending device 102 and electromagnetic waves (CW) sent by the energy source node 103. The uplink operating bandwidth supported by the Ambient-IoT terminal 101 indicates the frequency range or frequency width supported by the Ambient-IoT terminal 101 for uplink transmission. Within this uplink operating bandwidth, the Ambient-IoT terminal 101 can transmit uplink information. The uplink information is transmitted by reflecting the CW from the Ambient-IoT terminal 101. For example, the uplink information is information transmitted by backscattering formed by the Ambient-IoT terminal 101 modulating the data to be transmitted onto the CW. Optionally, the uplink transmission behavior of the Ambient-IoT terminal 101 can be described in the following embodiments.

[0173] In some embodiments, step S2101 may include the following steps S2101-11, for example:

[0174] In step S2101 - 11 , the Ambient-IoT terminal 101 sends capability information to the network device.

[0175] Optionally, the network device may be a base station or a core network device.

[0176] Optionally, for different Ambient-IoT terminals 101 , each Ambient-IoT terminal 101 may report its own capability information separately.

[0177] Optionally, the downlink information sending device 102 receives capability information of each Ambient-IoT terminal 101 .

[0178] In this embodiment, the Ambient-IoT terminal 101 reports capability information to the downlink information sending device 102 to report the frequency domain information corresponding to or supported by the Ambient-IoT terminal 101.

[0179] In some embodiments, step S2101 may include the following steps S2101-21, for example:

[0180] In step S2101 - 21 , the network device obtains capability information of the Ambient-IoT terminal 101 from the core network device.

[0181] Optionally, the network device may be a base station.

[0182] Optionally, the downlink information sending device 102 may selectively obtain capability information of one or more required Ambient-IoT terminals 101 from the core network device to obtain frequency domain information supported by the one or more Ambient-IoT terminals 101 .

[0183] Optionally, step S2101 may be omitted, or step S2101-11 may be omitted, or step S2101-21 may be omitted.

[0184] In step S2102 , the downlink information sending device 102 sends a downlink instruction to the Ambient-IoT terminal 101 .

[0185] Optionally, the downlink instruction is downlink information sent by the downlink information sending device 102, and the downlink sending behavior in this step is performed based on the frequency domain information corresponding to the Ambient-IoT terminal 101. For example, the network device sends the downlink instruction on the downlink operating frequency supported by the Ambient-IoT terminal 101.

[0186] Optionally, the downlink instruction may be used to instruct the Ambient-IoT terminal 101 to perform an uplink sending operation, such as instructing the Ambient-IoT terminal 101 to send uplink data or content.

[0187] Optionally, the Ambient-IoT terminal 101 performs uplink transmission based on the downlink instruction.

[0188] Optionally, the downlink information sending device 102 may instruct the Ambient-IoT terminal 101 to respond based on the downlink instruction. For example, the downlink instruction may instruct the Ambient-IoT terminal 101 to respond, or step S2103 may instruct the Ambient-IoT terminal 101 that meets the set conditions to respond.

[0189] Optionally, the Ambient-IoT terminal 101 receives the downlink instruction according to the frequency domain information supported by itself.

[0190] In step S2103 , the downlink information sending device 102 sends instruction information to the Ambient-IoT terminal 101 .

[0191] Optionally, the indication information may be sent separately or in the downlink instruction of step S2102. The downlink transmission behavior of this step is performed based on the frequency domain information corresponding to the Ambient-IoT terminal 101. For example, the network device sends the indication information on the downlink operating frequency supported by the Ambient-IoT terminal 101.

[0192] Optionally, the indication information is used to instruct the Ambient-IoT terminal 101 whose frequency domain information meets the set conditions to communicate. The communication here includes: the Ambient-IoT terminal 101 responding to the downlink information sending device 102, and / or the Ambient-IoT terminal 101 sending uplink information.

[0193] Optionally, the set condition may be a threshold condition indicated, defined, or configured based on frequency domain information supported by the Ambient-IoT terminal 101, used to measure whether the Ambient-IoT terminal 101 is a device with specific capabilities. For example, if the network device 102 instructs an Ambient-IoT terminal 101 with a downlink operating bandwidth less than or equal to 5 MHz to respond and / or send an uplink message, the Ambient-IoT terminal 101 will respond and / or send an uplink message only if the downlink operating bandwidth supported by the Ambient-IoT terminal 101 meets the specified condition.

[0194] Optionally, the Ambient-IoT terminal 101 receives indication information according to frequency domain information supported by itself.

[0195] In some embodiments, step S2103 can be omitted. When executing step S2103, the Ambient-IoT terminal 101 needs to determine whether it meets the set conditions. If the set conditions are met, steps S2104 to S2105 can be executed to ensure that the communication of this part of the equipment is not interfered with.

[0196] In one example, a network device uses two downlink operating frequencies (operating frequency 1 and operating frequency 2). Ambient-IoT terminals 101 with downlink operating bandwidths of 5 MHz and 10 MHz are located on both operating frequencies. Assuming the CW node is located at one of the operating frequencies, the uplink operating bandwidth of Ambient-IoT terminals 101 falls within the downlink operating bandwidth. Operating frequency 1 and operating frequency 2 each have two channel bandwidth configurations: Configuration 1 has a bandwidth of 5 MHz, and Configuration 2 has a bandwidth of 10 MHz.

[0197] When configuration 1 is used on working frequency 1 and configuration 2 is used on working frequency 2, if the network device sends a downlink instruction on working frequency 1 and requires the Ambient-IoT terminal 101 to respond, it can request a device with a working bandwidth of ≤5MHz to respond through an indication message; if the network device sends a downlink instruction on working frequency 2 and requires the Ambient-IoT terminal 101 to respond, it can request a device with a working bandwidth greater than 5MHz and ≤10Mhz to respond through an indication message.

[0198] When configuration 2 is used on operating frequency 1 and configuration 1 is used on operating frequency 2, if the network device sends a downlink instruction on operating frequency 2 and requests the Ambient-IoT terminal 101, it can request a device with an operating bandwidth of ≤5MHz to respond through an indication message; if the network device sends a downlink instruction on operating frequency 1 and requests the Ambient-IoT terminal 101 to respond, it can request a device with an operating bandwidth greater than 5MHz and ≤10Mhz to respond through an indication message.

[0199] Therefore, working frequency 1 and working frequency 2 can support the communication of all 5MHZ and 10MHz Ambient-IoT terminals 101 in a time-division manner, and at the same time, the frequency overhead of the entire Ambient-IoT system can be reduced from 20MHz (10MHz per working frequency) to 15MHZ at each corresponding time point.

[0200] In step S2104 , the energy source node 103 sends a CW to the Ambient-IoT terminal 101 .

[0201] Optionally, if the energy source node 103 is a CW node, CW is a downlink signal sent by the CW node, and the downlink sending behavior in this step is performed based on the frequency domain information corresponding to the Ambient-IoT terminal 101. For example, the CW node sends electromagnetic waves at the downlink operating frequency supported by the Ambient-IoT terminal 101.

[0202] In some embodiments, the terminal 101 receives the CW according to the frequency domain information supported by the terminal 101, and uses the CW for backscattering.

[0203] Alternatively, the CW may be of constant amplitude.

[0204] In step S2105 , the Ambient-IoT terminal 101 sends uplink information to the uplink information receiving device 104 .

[0205] In some embodiments, after receiving the CW, the Ambient-IoT terminal 101 modulates the data to be sent uplink onto the CW to form uplink information to be reflected and sent.

[0206] In some embodiments, the Ambient-IoT terminal 101 sends the uplink information within the uplink working bandwidth supported by the Ambient-IoT terminal 101.

[0207] Optionally, the uplink information receiving device 104 receives the uplink information within the uplink working bandwidth supported by the Ambient-IoT terminal 101 .

[0208] In some embodiments, the above-mentioned Ambient-IoT terminal 101 may be applicable to any Ambient-IoT terminal 101. Different Ambient-IoT terminals 101 support or correspond to different frequency domain information.

[0209] In some embodiments, the frequency domain information corresponding to different Ambient-IoT terminals 101 may be defined by a protocol.

[0210] In some embodiments, the frequency domain information corresponding to the Ambient-IoT terminal 101 meets the frequency domain requirements defined by the protocol.

[0211] Optionally, the frequency domain requirement defined by the protocol satisfies all related Ambient-IoT terminals 101 , and for a single Ambient-IoT terminal 101 , part of the frequency domain requirement may be satisfied.

[0212] In some embodiments, the frequency domain requirement includes at least one of the following:

[0213] Multiple downlink operating frequencies;

[0214] Maximum downlink operating bandwidth;

[0215] Minimum downlink operating bandwidth;

[0216] Maximum uplink working bandwidth;

[0217] Among them, the downlink operating frequency is the central frequency defined by the protocol for downlink reception of the Ambient-IoT terminal 101, the maximum downlink operating bandwidth is the maximum value of the frequency width allowed for downlink operation of the Ambient-IoT terminal 101 defined by the protocol, the minimum downlink operating bandwidth is the minimum value of the frequency width allowed for downlink operation of the Ambient-IoT terminal 101 defined by the protocol, and the maximum uplink operating bandwidth is the maximum value of the frequency width allowed for uplink operation of the Ambient-IoT terminal 101 defined by the protocol.

[0218] Optionally, the multiple downlink operating frequencies defined by the protocol are applicable to multiple or all Ambient-IoT terminals 101, and the downlink operating frequency supported by any Ambient-IoT terminal 101 is at least one of the multiple downlink operating frequencies. Optionally, based on the low complexity of the Ambient-IoT terminal 101, the Ambient-IoT terminal 101 can know or determine the one or more downlink operating frequencies it can support when it is manufactured.

[0219] In one example, the Ambient-IoT terminal 101 supports operation at multiple downlink operating frequencies. The Ambient-IoT terminal 101 supports two downlink operating frequencies (frequency 1 and frequency 2), receives downlink information at frequency 1, and receives CW at frequency 2. In this example, a possible deployment scenario is that frequency 1 is on the frequency division multiplexing (FDD) downlink (DL) spectrum, and frequency 2 is on the FDD uplink (UL) spectrum.

[0220] In another example, an example of the Ambient-IoT terminal 101 supporting operation at multiple downlink operating frequencies is: the Ambient-IoT terminal 101 supports 2 downlink operating frequencies (frequency 1 and frequency 2), and can receive downlink information and CW at frequency 1 and frequency 2.

[0221] Alternatively, in one possible hardware implementation, the downlink operating frequency supported by the Ambient-IoT terminal 101 is the center frequency of the filter in the Ambient-IoT terminal 101, and the supported downlink operating bandwidth is the bandwidth of the filter. If the Ambient-IoT terminal 101 supports operation at multiple downlink operating frequencies, filters corresponding to multiple downlink operating frequencies may be used.

[0222] Optionally, the downlink operating frequency may be a frequency at which the node device transmits downlink information. For example, the downlink operating frequency includes the frequency at which the downlink information transmitting device 102 transmits downlink information to the Ambient-IoT terminal 101 in steps S2102 to S2103, and also includes the frequency at which the energy source node 103 transmits downlink information to the Ambient-IoT terminal 101 in step S2104. The energy source node 103 may be a CW node.

[0223] Optionally, the aforementioned frequency domain requirements may have corresponding relationships, and the corresponding relationships may be defined by a protocol. For example, each of the multiple downlink operating frequency points corresponds to at least one of the following frequency domain requirements: maximum downlink operating bandwidth, minimum downlink operating bandwidth, and maximum uplink operating bandwidth. The corresponding relationships between each downlink operating frequency point may be defined by a protocol.

[0224] Optionally, the maximum downlink operating bandwidth and the minimum downlink operating bandwidth both include corresponding downlink operating frequencies.

[0225] Optionally, at least one of the maximum downlink operating bandwidth, the minimum downlink operating bandwidth and the maximum uplink operating bandwidth is defined as a plurality of levels.

[0226] In one example, the maximum downlink operating bandwidth is divided into the following different levels: W rmax1 , W rmax2 , W rmax3 ..., the downlink working bandwidth supported by different Ambient-IoT terminals 101 may correspond to different levels. For example, the downlink working bandwidth supported by the Ambient-IoT terminal 101A is W rmax1 , the downlink working bandwidth supported by the Ambient-IoT terminal 101B is W rmax2 For any Ambient-IoT terminal 101, the Ambient-IoT terminal 101 will receive signals within the downlink working bandwidth it supports, and will reflect the signals received within the downlink receiving bandwidth when performing backscattering.

[0227] Optionally, in the Ambient-IoT communication system, the maximum downlink operating bandwidth that different Ambient-IoT terminals 101 need to meet is defined, and the downlink operating bandwidth supported by each Ambient-IoT terminal 101 can be limited to a certain range. The downlink information sending device 102 can send and receive other information on the spectrum outside the downlink operating bandwidth supported by the Ambient-IoT terminal 101, such as sending and receiving another parallel independent Ambient-IoT channel, or sending and receiving NR channels.

[0228] As shown in Figure 2b, based on the different downlink operating bandwidths corresponding to Ambient-IoT terminals 101A and B, Ambient-IoT terminals 101A and B are isolated in the frequency domain, which helps reduce mutual interference in their communication processes. As shown in the example of Figure 2b, based on the different frequency domain information corresponding to different Ambient-IoT terminals 101, the available spectrum can be divided into multiple sub-channels based on frequency resources. Each sub-channel occupies a fixed bandwidth, and the sub-channels are orthogonal in the frequency domain. For different Ambient-IoT terminals 101, each Ambient-IoT terminal 101 occupies its own corresponding frequency domain information, such as occupying one or more sub-channels.

[0229] Optionally, the Ambient-IoT terminal 101 may be instructed by the network device to use one or more sub-channels, or one or more sub-channels may be selected through an algorithm. For the Ambient-IoT terminal 101 that uses backscattering, the working bandwidth of its antenna is relatively wide (such as tens of MHz). If the energy source node 103 transmits energy at multiple frequency points within the working bandwidth of the Ambient-IoT terminal 101, the Ambient-IoT terminal 101 may receive energy at these multiple frequency points and backscatter them all, and does not have the ability to backscatter only the energy of the selected sub-channel. Based on this, the sub-channel that the Ambient-IoT terminal 101 can use depends on the working frequency of the energy source node 103, that is, the downlink working frequency.

[0230] In one example, the minimum downlink operating bandwidth is divided into the following different levels: rmin1 , W rmin2 , W rmin3 ..., the downlink working bandwidth supported by different Ambient-IoT terminals 101 may correspond to different levels. For example, the downlink working bandwidth supported by the Ambient-IoT terminal 101A is W rmin1 , the downlink working bandwidth supported by the Ambient-IoT terminal 101B is W rmin2 . For any Ambient-IoT terminal 101, based on the minimum downlink operating bandwidth it supports, it can receive signals near the downlink operating frequency. The minimum downlink operating bandwidth can also provide a reference for the frequency at which the network device sends downlink signals or the CW node sends CW. For example, to ensure that the Ambient-IoT terminal 101 can receive downlink signals and CW, the transmission frequency of the CW of the downlink signal is limited to within the minimum downlink operating bandwidth of the downlink operating frequency supported by the Ambient-IoT terminal 101.

[0231] Based on the above example, for a specific Ambient-IoT terminal 101, it may only support operation on one downlink operating frequency, and the downlink operating bandwidth it supports is the maximum downlink operating bandwidth or minimum downlink operating bandwidth of a certain level that meets the protocol requirements.

[0232] In one example, the maximum uplink operating bandwidth is divided into the following different levels: W t1 , W t2 , W t3 ..., the uplink working bandwidth supported by different Ambient-IoT terminals 101 may correspond to different levels. For example, the uplink working bandwidth supported by the Ambient-IoT terminal 101A is W t1 , the uplink working bandwidth supported by the Ambient-IoT terminal 101B is Wt2 For any Ambient-IoT terminal 101, the maximum uplink operating bandwidth it supports can limit the bandwidth of the uplink signal sent by the Ambient-IoT terminal 101 to a certain range, which is beneficial for the network equipment to send and receive other information on the spectrum outside this uplink operating bandwidth, such as sending and receiving another parallel independent Ambient-IoT channel, or sending and receiving NR channels.

[0233] In one example, the maximum uplink operating bandwidth is determined according to the operating frequency of the energy source node 103 and a frequency offset based on the operating frequency.

[0234] Optionally, in combination with the description of the aforementioned embodiment, the operating frequency of the energy source node 103, such as a CW node, may be a downlink operating frequency. Optionally, the uplink operating frequency supported by the Ambient-IoT terminal 101 is related to the downlink operating frequency. For example, if the frequency offset is 0, the uplink operating frequency supported by the Ambient-IoT terminal 101 is the same as the downlink operating frequency. If the frequency offset is greater than 0, the maximum uplink operating bandwidth satisfied by the Ambient-IoT terminal 101 may be determined based on the frequency offset and the downlink operating frequency.

[0235] Optionally, the size of the frequency offset is related to the hardware characteristics of the Ambient-IoT terminal 101. The frequency offset may be a fixed value. If supported by the hardware, the frequency offset may also support multiple fixed values ​​or a dynamically adjusted value.

[0236] Optionally, the uplink transmission bandwidth of the Ambient-IoT terminal 101 depends on its ability to shift the spectrum during CW reflection. This uplink transmission bandwidth can be defined as the frequency offset of the reflected wave from the Ambient-IoT terminal 101 relative to the CW. For example, if the maximum uplink operating bandwidth is defined as offset1, the maximum allowable frequency offset of the reflected wave from the Ambient-IoT terminal 101 relative to the CW is offset1.

[0237] In this example, based on the frequency offset, assuming that the operating frequency of the CW node is f1, if the frequency offset is a single-sideband offset, the frequency range of the maximum uplink operating bandwidth is [f1, f1+offset1] or [f1-offset1, f1]. If the frequency offset is a double-sideband offset, the frequency range of the maximum uplink operating bandwidth is [f1-offset1, f1+offset1].

[0238] In combination with the above example, different Ambient-IoT terminals 101 may have different capabilities, such as the following categories:

[0239] The Ambient-IoT terminal 101 is supported to operate on only one fixed downlink operating frequency, and its uplink operating bandwidth is also unique and fixed;

[0240] The Ambient-IoT terminal 101 is supported to operate at only one fixed downlink operating frequency, and its uplink operating bandwidth can have multiple different frequency ranges;

[0241] The Ambient-IoT terminal 101 supports operation at multiple downlink operating frequencies, and its uplink operating bandwidth can have multiple different frequency ranges.

[0242] In combination with the description of the foregoing embodiment, the Ambient-IoT terminal 101 may report its own capabilities to report supported frequency domain information so that the network device can learn the frequency domain information of different Ambient-IoT terminals 101 .

[0243] In some embodiments, the Ambient-IoT terminal 101 may not report its own capability information, i.e., the corresponding frequency domain information. For example, the Ambient-IoT terminal 101 may directly attempt to receive downlink information from the network device at its own downlink operating frequency. The network device directly sets the downlink information transmission frequency, the CW frequency, and the system bandwidth of the ambient IoT system according to the maximum and minimum operating bandwidths corresponding to the operating frequency.

[0244] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", and "field" can be used interchangeably.

[0245] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0246] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0247] In some embodiments, the terms "radio", "wireless", "radio access network (RAN)", "access network (AN)", "RAN-based" and the like may be used interchangeably.

[0248] In some embodiments, terms such as "moment", "time point", "time", and "time position" can be replaced with each other, and terms such as "duration", "period", "time window", "window", and "time" can be replaced with each other.

[0249] In some embodiments, the terms "component carrier (CC)", "cell", "frequency carrier", "carrier frequency" and the like can be used interchangeably.

[0250] In some embodiments, terms such as "certain", "preset", "preset", "setting", "indicated", "a certain", "any", and "first" can be interchangeable. "Specific A", "preset A", "preset A", "setting A", "indicated A", "a certain A", "any A", and "first A" can be interpreted as A pre-specified in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., or as specific A, a certain A, any A, or first A, etc., but not limited to this.

[0251] In some embodiments, the determination or judgment can be performed by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values ​​(for example, comparison with a predetermined value), but is not limited thereto.

[0252] In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and / or frequency domain resources, or as not performing subsequent processing on the data after receiving it; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the recipient to respond to the content sent.

[0253] The method involved in the embodiment of the present disclosure may include at least one of steps S2101 to S2105, for example, the method includes steps S2102, S2104 and S2105.

[0254] In some embodiments, at least one of steps S2101 and S2103 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0255] In some embodiments, steps S2102 and S2103 may be performed synchronously or in an exchanged order.

[0256] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 a .

[0257] FIG3a is a schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG3a, the present disclosure embodiment relates to a communication method, which is executed by an Ambient-IoT terminal 101 and includes:

[0258] Step S3101: Send capability information.

[0259] In some embodiments, the implementation of step S3101 can refer to the optional implementation of step S2101 and will not be repeated here.

[0260] Step S3102, obtain downlink instructions.

[0261] In some embodiments, the implementation of step S3102 can refer to the optional implementation of step S2102 and will not be repeated here.

[0262] Step S3103, obtain instruction information.

[0263] In some embodiments, the implementation of step S3103 can refer to the optional implementation of step S2103 and will not be repeated here.

[0264] Step S3104, obtain CW.

[0265] In some embodiments, the implementation of step S3104 can refer to the optional implementation of step S2104 and will not be repeated here.

[0266] Step S3105: Send uplink information.

[0267] In some embodiments, the implementation of step S3105 can refer to the optional implementation of step S2105 and will not be repeated here.

[0268] The method involved in the embodiment of the present disclosure may include at least one of steps S3101 to S3105, for example, the method includes steps S3102, S3104 and S3105.

[0269] In some embodiments, at least one of steps S3101 and S3103 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0270] In some embodiments, steps S3102 and S3103 may be performed synchronously or in an exchanged order.

[0271] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3 a .

[0272] FIG3b is a schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG3b, the present disclosure embodiment relates to a communication method, which is executed by the Ambient-IoT terminal 101 and includes:

[0273] Step S3201, obtain downlink instructions.

[0274] In some embodiments, the implementation of step S3201 can refer to the optional implementation of step S2102 and will not be repeated here.

[0275] Step S3202, obtain CW.

[0276] In some embodiments, the implementation of step S3202 can refer to the optional implementation of step S2104 and will not be repeated here.

[0277] Step S3203: Send uplink information.

[0278] In some embodiments, the implementation of step S3203 can refer to the optional implementation of step S2105 and will not be repeated here.

[0279] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3 b .

[0280] FIG3c is a schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG3c, the present disclosure embodiment relates to a communication method, which is executed by the Ambient-IoT terminal 101 and includes:

[0281] Step S3301, obtain downlink instructions.

[0282] In some embodiments, the implementation of step S3301 can refer to the optional implementation of step S2102 and will not be repeated here.

[0283] Step S3302, obtain instruction information.

[0284] In some embodiments, the implementation of step S3302 can refer to the optional implementation of step S2103 and will not be repeated here.

[0285] Step S3303: Acquire CW when the set conditions are met.

[0286] In some embodiments, the implementation of step S3303 can refer to the optional implementation of step S2104 and will not be repeated here.

[0287] Step S3304: Send uplink information when the set conditions are met.

[0288] In some embodiments, the implementation of step S3304 can refer to the optional implementation of step S2105 and will not be repeated here.

[0289] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3c.

[0290] FIG3d is a schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG3d , the embodiment of the present disclosure relates to a communication method, which is executed by the Ambient-IoT terminal 101 and includes:

[0291] In step S3401, the Ambient-IoT terminal communicates with the node device based on the corresponding frequency domain information.

[0292] In some embodiments, the implementation of step S3401 can refer to the optional implementation of steps S2102, S2104 and S2105, which will not be repeated here.

[0293] In some embodiments, the node device includes at least one of the following:

[0294] Downlink information sending equipment or network equipment;

[0295] Energy source node;

[0296] Uplink information receiving device.

[0297] In some embodiments, the Ambient-IoT terminal communicates with the node device based on the corresponding frequency domain information, including at least one of the following:

[0298] The Ambient-IoT terminal receives downlink information sent by the downlink information sending device and / or receives downlink signals sent by the energy source node based on the corresponding frequency domain information;

[0299] The Ambient-IoT terminal sends uplink information to the information receiving device based on the corresponding frequency domain information.

[0300] In some embodiments, the frequency domain information includes at least one of the following:

[0301] Downlink operating frequencies supported by Ambient-IoT terminals;

[0302] Downlink bandwidth supported by Ambient-IoT terminals;

[0303] Uplink bandwidth supported by the Ambient-IoT terminal.

[0304] In some embodiments, the frequency domain information corresponding to the Ambient-IoT terminal meets the frequency domain requirements defined by the protocol.

[0305] Optionally, the frequency domain requirement includes at least one of the following:

[0306] Multiple downlink operating frequencies;

[0307] Maximum downlink operating bandwidth;

[0308] Minimum downlink operating bandwidth;

[0309] Maximum uplink working bandwidth;

[0310] Among them, the downlink operating frequency is the central frequency defined by the protocol for downlink reception of the Ambient-IoT terminal, the maximum downlink operating bandwidth is the maximum value of the frequency width allowed for downlink operation of the Ambient-IoT terminal defined by the protocol, the minimum downlink operating bandwidth is the minimum value of the frequency width allowed for downlink operation of the Ambient-IoT terminal defined by the protocol, and the maximum uplink operating bandwidth is the maximum value of the frequency width allowed for uplink operation of the Ambient-IoT terminal defined by the protocol.

[0311] Optionally, at least one of the maximum downlink operating bandwidth, the minimum downlink operating bandwidth and the maximum uplink operating bandwidth is defined as a plurality of levels.

[0312] Optionally, the maximum uplink operating bandwidth is determined according to an operating frequency of the energy source node and a frequency offset based on the operating frequency.

[0313] Optionally, each of the multiple downlink operating frequency points corresponds to at least one of the following frequency domain requirements: a maximum downlink operating bandwidth, a minimum downlink operating bandwidth, and a maximum uplink operating bandwidth.

[0314] In some embodiments, the node device includes a network device, and the method further includes:

[0315] The Ambient-IoT terminal sends capability information to the network device. The capability information includes frequency domain information corresponding to the Ambient-IoT terminal.

[0316] In some embodiments, the node device includes a downlink information sending device, and the method further includes:

[0317] The Ambient-IoT terminal receives instruction information sent by the downlink information sending device, where the instruction information is used to instruct the Ambient-IoT terminal whose frequency domain information meets the set conditions to communicate.

[0318] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 3 d .

[0319] Figure 4a is a schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 4a, the embodiment of the present disclosure relates to a communication method, which is executed by a node device and includes:

[0320] Step S4101, obtaining capability information.

[0321] In some embodiments, the implementation of step S4101 can refer to the optional implementation of step S2101 and will not be repeated here.

[0322] Step S4102: Send a downlink instruction.

[0323] In some embodiments, the implementation of step S4102 can refer to the optional implementation of step S2102 and will not be repeated here.

[0324] Step S4103: Send instruction information.

[0325] In some embodiments, the implementation of step S4103 can refer to the optional implementation of step S2103 and will not be repeated here.

[0326] Step S4104, send CW.

[0327] In some embodiments, the implementation of step S4104 can refer to the optional implementation of step S2104 and will not be repeated here.

[0328] Step S4105: Obtain uplink information.

[0329] In some embodiments, the implementation of step S4105 can refer to the optional implementation of step S2105 and will not be repeated here.

[0330] The method involved in the embodiment of the present disclosure may include at least one of steps S4101 to S4105, for example, the method includes steps S4102, S4104 and S4105.

[0331] In some embodiments, at least one of steps S4101 and S4103 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0332] In some embodiments, steps S4102 and S4103 may be performed simultaneously or in an exchanged order.

[0333] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 4 a .

[0334] Figure 4b is a schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 4b, the embodiment of the present disclosure relates to a communication method, which is executed by a node device and includes:

[0335] Step S4201, sending a downlink instruction.

[0336] In some embodiments, the implementation of step S4201 can refer to the optional implementation of step S2102 and will not be repeated here.

[0337] Step S4202, send CW.

[0338] In some embodiments, the implementation of step S4202 can refer to the optional implementation of step S2104 and will not be repeated here.

[0339] Step S4203, obtain uplink information.

[0340] In some embodiments, the implementation of step S4203 can refer to the optional implementation of step S2105 and will not be repeated here.

[0341] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 4 b .

[0342] Figure 4c is a schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 4c, the embodiment of the present disclosure relates to a communication method, which is executed by a node device and includes:

[0343] Step S4301, sending a downlink instruction.

[0344] In some embodiments, the implementation of step S4201 can refer to the optional implementation of step S2102 and will not be repeated here.

[0345] Step S4302, sending instruction information.

[0346] In some embodiments, the implementation of step S4302 can refer to the optional implementation of step S2103 and will not be repeated here.

[0347] Step S4303: Send CW to the Ambient-IoT terminal 101 that meets the set conditions.

[0348] In some embodiments, the implementation of step S4303 can refer to the optional implementation of step S2104 and will not be repeated here.

[0349] Step S4304: receiving uplink information sent by the Ambient-IoT terminal 101 that meets the set conditions.

[0350] In some embodiments, the implementation of step S4304 can refer to the optional implementation of step S2105 and will not be repeated here.

[0351] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 4c.

[0352] Figure 4d is a schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 4d, the embodiment of the present disclosure relates to a communication method, which is executed by a node device and includes:

[0353] In step S4401, the node device communicates with the Ambient-IoT terminal based on the frequency domain information corresponding to the Ambient-IoT terminal.

[0354] In some embodiments, the implementation of step S4401 can refer to the optional implementation of steps S2102, S2104 and S2105, which will not be repeated here.

[0355] In some embodiments, the node device includes at least one of the following:

[0356] Downlink information sending equipment or network equipment;

[0357] Energy source node;

[0358] Uplink information receiving device.

[0359] In some embodiments, the node device communicates with the Ambient-IoT terminal based on frequency domain information corresponding to the Ambient-IoT terminal, including at least one of the following:

[0360] The downlink information sending device sends downlink information to the Ambient-IoT terminal based on the frequency domain information corresponding to the Ambient-IoT terminal, and / or the energy source node sends a downlink signal to the Ambient-IoT terminal based on the frequency domain information corresponding to the Ambient-IoT terminal;

[0361] The uplink information receiving device receives uplink information sent by the Ambient-IoT terminal based on the frequency domain information corresponding to the Ambient-IoT terminal.

[0362] In some embodiments, the frequency domain information includes at least one of the following:

[0363] Downlink operating frequencies supported by Ambient-IoT terminals;

[0364] Downlink bandwidth supported by Ambient-IoT terminals;

[0365] Uplink bandwidth supported by the Ambient-IoT terminal.

[0366] In some embodiments, the frequency domain information corresponding to the Ambient-IoT terminal meets the frequency domain requirements defined by the protocol.

[0367] Optionally, the frequency domain requirement includes at least one of the following:

[0368] Multiple downlink operating frequencies;

[0369] Maximum downlink operating bandwidth;

[0370] Minimum downlink operating bandwidth;

[0371] Maximum uplink working bandwidth;

[0372] Among them, the downlink operating frequency is the central frequency defined by the protocol for downlink reception of the Ambient-IoT terminal, the maximum downlink operating bandwidth is the maximum value of the frequency width allowed for downlink operation of the Ambient-IoT terminal defined by the protocol, the minimum downlink operating bandwidth is the minimum value of the frequency width allowed for downlink operation of the Ambient-IoT terminal defined by the protocol, and the maximum uplink operating bandwidth is the maximum value of the frequency width allowed for uplink operation of the Ambient-IoT terminal defined by the protocol.

[0373] Optionally, at least one of the maximum downlink operating bandwidth, the minimum downlink operating bandwidth and the maximum uplink operating bandwidth is defined as a plurality of levels.

[0374] Optionally, the maximum uplink operating bandwidth is determined according to an operating frequency of the energy source node and a frequency offset based on the operating frequency.

[0375] Optionally, each of the multiple downlink operating frequency points corresponds to at least one of the following frequency domain requirements: a maximum downlink operating bandwidth, a minimum downlink operating bandwidth, and a maximum uplink operating bandwidth.

[0376] In some embodiments, the node device includes a network device, and the method further includes:

[0377] The network device receives capability information of the Ambient-IoT terminal, where the capability information includes frequency domain information corresponding to the Ambient-IoT terminal, or

[0378] Network devices obtain capability information of Ambient-IoT terminals from core network devices.

[0379] In some embodiments, the node device includes a downlink information sending device, and the method further includes:

[0380] The downlink information sending device sends instruction information to the Ambient-IoT terminal, where the instruction information is used to instruct the Ambient-IoT terminal whose frequency domain information meets the set conditions to communicate.

[0381] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 4 d .

[0382] The method provided in the embodiments of the present disclosure illustrates a method for determining the operating frequency and bandwidth of IoT devices in order to reduce interference in the network and increase network capacity or the number of connections in an IoT using backscatter technology. To facilitate the description of the embodiments of the present disclosure, some examples are listed below:

[0383] Optionally, the ambient iot device or device corresponds to the Ambient-IoT terminal in the aforementioned embodiment, and is referred to as device in the following examples.

[0384] Example 1:

[0385] The protocol defines the downlink operating frequency of the device. Multiple operating frequencies can be defined, but the device can only operate at one or more of these frequencies.

[0386] Optionally, the downlink operating frequency includes a frequency at which the network sends downlink information to the device, and also includes a frequency at which the CW node sends CW to the device.

[0387] Optionally, considering the low complexity of the device, one or more downlink operating frequencies that the device can support may have been determined during production.

[0388] Optionally, the uplink operating frequency does not need to be defined separately. The uplink operating frequency is related to the CW frequency, which is the downlink operating frequency. If the device backscatter has no frequency offset, the uplink operating frequency is the same as the downlink operating frequency. If there is a frequency offset, the uplink operating frequency is determined based on the downlink operating frequency and the frequency offset.

[0389] Example 2:

[0390] The device's maximum downlink bandwidth requirement is defined by the protocol.

[0391] Optionally, the maximum downlink operating bandwidth can be divided into multiple different levels, such as W rmax1 , W rmax2 , W rmax3 …….

[0392] Optionally, the device will receive signals within its downlink operating bandwidth and, when performing reflection, will reflect signals received within its downlink receive bandwidth. Defining a device's maximum downlink operating bandwidth limits the device's downlink receive bandwidth to a certain range, allowing the base station to transmit and receive other information in spectrum outside the device's maximum downlink operating bandwidth, such as transmitting and receiving a parallel, independent ambient IoT channel or transmitting and receiving NR channels.

[0393] Example 3:

[0394] The device's minimum downlink bandwidth requirement is defined by the protocol.

[0395] Optionally, the minimum downlink operating bandwidth can be divided into multiple different levels, such as W rmin1 , W rmin2 , W rmin3 …….

[0396] Optionally, defining a minimum downlink operating bandwidth ensures that signals near the downlink operating frequency can be received. This also provides a reference for the network to send downlink signals and for the CW node to determine the CW frequency. In other words, to ensure that the device can receive both downlink signals and CWs, the CW frequency of the downlink signal should be limited to the minimum downlink operating bandwidth of the device's downlink operating frequency.

[0397] Optionally, for Example 2 and Example 3, for different downlink operating frequencies, the maximum downlink operating bandwidth requirement and / or the minimum downlink operating bandwidth requirement corresponding to the frequency may be defined respectively.

[0398] Alternatively, a possible hardware implementation is to set the device's downlink operating frequency to the center frequency of the device's filter, and the downlink operating bandwidth to the bandwidth of the device's filter. Filters used in ambient IoT applications cannot dynamically adjust their center frequency. Therefore, if a device supports multiple downlink operating frequencies, filters corresponding to these frequencies are required.

[0399] Optionally, a specific UE may only support operation at one operating frequency point, and its downlink operating bandwidth is a fixed value that meets protocol requirements.

[0400] Optionally, a device supports operation at multiple downlink operating frequencies: the device supports two downlink operating frequencies, receiving downlink information at frequency 1 and receiving CW signals at frequency 2. In one possible deployment scenario, frequency 1 is in the FDD DL spectrum and frequency 2 is in the FDD UL spectrum.

[0401] Example 4:

[0402] The device's maximum uplink bandwidth requirement is defined by the protocol.

[0403] Optionally, the maximum uplink operating bandwidth can be divided into multiple different levels, such as W t1 , W t2 , W t3 …….

[0404] Optionally, because the device's uplink transmit bandwidth depends on the device's ability to shift spectrum when reflecting CW, the uplink transmit bandwidth can also be defined as the frequency offset of the device's reflected wave compared to the CW. For example, if the maximum uplink transmit bandwidth is defined as offset1, the maximum allowable frequency offset of the device's reflected wave compared to the CW frequency is offset1.

[0405] Optionally, the frequency offset can be categorized as single-sideband (SSB) or double-sideband (DSB) offset. Assuming the CW frequency is f1, if SSB offset is used, the maximum uplink bandwidth frequency range is [f1, f1 + offset1] or [f1 - offset1, f1]. If DSB offset is used, the maximum uplink bandwidth frequency range is [f1 - offset1, f1 + offset1].

[0406] Optionally, defining a maximum uplink operating bandwidth can limit the bandwidth of the device's uplink transmission signal to a certain range. This allows the base station to transmit and receive other information in the spectrum outside of this uplink operating bandwidth, such as transmitting and receiving another parallel independent ambient IoT channel or transmitting and receiving NR channels.

[0407] Optionally, for different downlink operating frequencies, maximum uplink operating bandwidth requirements corresponding to the frequencies may be defined respectively.

[0408] Example 5:

[0409] The base station obtains the above-mentioned operating frequency information and bandwidth capability information of the device.

[0410] Optionally, the base station may obtain the bandwidth capability information of the device from the core network, or may obtain the bandwidth capability information from a report submitted by the device to the network.

[0411] Example 6:

[0412] Under a specific ambient IoT channel bandwidth configuration, the base station can also only require device communications with specific capabilities to ensure that device communications on that carrier do not interfere with other carriers.

[0413] In one example, assume that a base station uses two downlink operating frequencies: operating frequency 1 and operating frequency 2. Devices with downlink operating bandwidths of 5 MHz and 10 MHz are located at both operating frequencies (assuming that the CW is located exactly at the operating frequency, and the device's uplink transmission bandwidth is covered by the downlink operating bandwidth).

[0414] In this example, operating frequency 1 and operating frequency 2 each have two channel bandwidths. Channel configuration 1 has a bandwidth of 5 MHz, and channel configuration 2 has a bandwidth of 10 MHz.

[0415] When channel configuration 1 is used for operating frequency 1 and channel configuration 2 is used for operating frequency 2, when the base station sends a downlink command on operating frequency 1 and requires a device to respond, it can instruct only devices with an operating bandwidth of 5 MHz or less to respond. When the base station sends a downlink command on operating frequency 2 and requires a device to respond, it can instruct only devices with an operating bandwidth greater than 5 MHz and less than or equal to 10 MHz to respond.

[0416] When channel configuration 2 is used on operating frequency 1 and channel configuration 1 is used on operating frequency 2, when the base station sends a downlink command on operating frequency 2 and requires a device to respond, it can instruct only devices with an operating bandwidth of 5 MHz or less to respond. When the base station sends a downlink command on operating frequency 1 and requires a device to respond, it can instruct only devices with an operating bandwidth greater than 5 MHz and less than or equal to 10 MHz to respond.

[0417] As a result, operating frequencies 1 and 2 can support the communication of all 5MHz and 10MHz devices in a time-division manner, while reducing the frequency overhead of the entire ambientIOT system from 20MHz (10MHz per operating frequency) to 15MHz.

[0418] Example 7:

[0419] Based on the operating frequency and bandwidth, devices can be classified as follows:

[0420] (1) The device supports only one fixed downlink frequency. The device's uplink bandwidth is also fixed.

[0421] (2) The device only supports one fixed downlink operating frequency. The uplink operating bandwidth of the device can have multiple different frequency ranges.

[0422] (3) The device supports multiple downlink operating frequencies, and the uplink operating bandwidth of the device can have multiple different frequency ranges.

[0423] 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.

[0424] 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.

[0425] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0426] Figure 5a is a schematic diagram of the structure of a terminal proposed in an embodiment of the present disclosure. As shown in Figure 5a, the terminal 5100 may include at least one of a transceiver module 5101 and a processing module 5102. In some embodiments, the transceiver module 5101 is used to communicate with a node device based on the corresponding frequency domain information domain.

[0427] Optionally, the transceiver module 5101 is configured to execute at least one of the communication steps of sending and / or receiving performed by the terminal 101 in any of the above methods, which are not described in detail here. Optionally, the processing module 5102 is configured to execute at least one of the other steps performed by the terminal 101 in any of the above methods, which are not described in detail here.

[0428] Figure 5b is a schematic diagram of the node device structure proposed in an embodiment of the present disclosure. As shown in Figure 5b, node device 5200 may include at least one of a transceiver module 5201 and a processing module 5202. In some embodiments, transceiver module 5201 is used to communicate with an Ambient-IoT terminal based on frequency domain information corresponding to the Ambient-IoT terminal.

[0429] Optionally, the transceiver module 5201 is used to perform at least one of the communication steps such as sending and / or receiving performed by the node device in any of the above methods, which will not be described in detail here. Optionally, the processing module 5202 is used to perform at least one of the other steps performed by the network device 102 in any of the above methods, which will not be described in detail here.

[0430] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0431] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0432] Figure 6a is a schematic diagram of the structure of a communication device 6100 proposed in an embodiment of the present disclosure. Communication device 6100 can be a node 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 6100 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.

[0433] As shown in Figure 6a, the communication device 6100 includes one or more processors 6101. The processor 6101 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 6100 is used to perform any of the above methods. Optionally, one or more processors 6101 are used to call instructions to enable the communication device 6100 to perform any of the above methods.

[0434] In some embodiments, the communication device 6100 further includes one or more transceivers 6102. When the communication device 6100 includes one or more transceivers 6102, the transceiver 6102 performs at least one of the communication steps, such as sending and / or receiving, in the above-described method, and the processor 6101 performs at least one of the other steps. In an optional embodiment, the transceiver may include a receiver and / or a transmitter, and the receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, and interface may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0435] In some embodiments, the communication device 6100 further includes one or more memories 6103 for storing data. Alternatively, all or part of the memories 6103 may be located outside the communication device 6100. In alternative embodiments, the communication device 6100 may include one or more interface circuits 6104. Optionally, the interface circuits 6104 are connected to the memories 6103 and may be configured to receive data from the memories 6103 or other devices, or to send data to the memories 6103 or other devices. For example, the interface circuits 6104 may read data stored in the memories 6103 and send the data to the processor 6101.

[0436] The communication device 6100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 6100 described in the present disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited by FIG. 6a. 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.

[0437] FIG6b is a schematic diagram of the structure of a chip 6200 according to an embodiment of the present disclosure. If the communication device 6100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 6200 shown in FIG6b , but the present disclosure is not limited thereto.

[0438] The chip 6200 includes one or more processors 6201. The chip 6200 is configured to execute any of the above methods.

[0439] In some embodiments, chip 6200 further includes one or more interface circuits 6202. Terms such as interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 6200 further includes one or more memories 6203 for storing data. Alternatively, all or part of memory 6203 may be located external to chip 6200. Optionally, interface circuit 6202 is connected to memory 6203 and may be used to receive data from memory 6203 or other devices, or may be used to send data to memory 6203 or other devices. For example, interface circuit 6202 may read data stored in memory 6203 and send the data to processor 6201.

[0440] In some embodiments, the interface circuit 6202 performs at least one of the communication steps, such as sending and / or receiving, in the above-described method. For example, the interface circuit 6202 performing the communication steps, such as sending and / or receiving, in the above-described method means that the interface circuit 6202 performs data exchange between the processor 6201, the chip 6200, the memory 6203, or the transceiver device. In some embodiments, the processor 6201 performs at least one of the other steps.

[0441] 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.

[0442] The present disclosure also proposes a storage medium having instructions stored thereon. When the instructions are executed on the communication device 6100, the communication device 6100 executes any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a transient storage medium.

[0443] The present disclosure also provides a program product, which, when executed by the communication device 6100, enables the communication device 6100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0444] 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. Industrial Applicability

[0445] Ambient-IoT terminals will communicate based on their respective frequency domain information, so that different Ambient-IoT terminals can use corresponding frequency domain resources to communicate, reducing interference between the communication processes of different Ambient-IoT terminals.

Claims

1. A communication method, the method comprising: The Ambient-IoT terminal in the ambient Internet of Things communicates with node devices based on corresponding frequency-domain information.

2. The method according to claim 1, wherein, The node devices include at least one of the following: Downlink information sending device or network device; Energy source node; Uplink information receiving device.

3. The method according to claim 2, wherein the Ambient-IoT terminal communicates with the node device based on the corresponding frequency domain information, including at least one of the following: The Ambient-IoT terminal receives the downlink information sent by the downlink information sending device and / or receives the downlink signal sent by the energy source node based on the corresponding frequency domain information; The Ambient-IoT terminal sends uplink information to the information receiving end device based on the corresponding frequency domain information.

4. The method according to any one of claims 1 to 3, wherein, The frequency-domain information includes at least one of the following: Downlink operating frequency points supported by the Ambient-IoT terminal; Downlink operating bandwidth supported by the Ambient-IoT terminal; Uplink operating bandwidth supported by the Ambient-IoT terminal.

5. The method according to any one of claims 1 to 4, wherein, The frequency-domain information corresponding to the Ambient-IoT terminal meets the frequency-domain requirements defined by the protocol.

6. The method according to claim 5, wherein, The frequency-domain requirements include at least one of the following: Multiple downlink operating frequency points; Maximum downlink operating bandwidth; Minimum downlink operating bandwidth; Maximum uplink operating bandwidth; Wherein, the downlink operating frequency point is the center frequency point defined by the protocol for downlink reception of the Ambient-IoT terminal, the maximum downlink operating bandwidth is the maximum value of the frequency width allowed for the Ambient-IoT terminal to operate in the downlink defined by the protocol, the minimum downlink operating bandwidth is the minimum value of the frequency width of the Ambient-IoT terminal operating in the downlink defined by the protocol, and the maximum uplink operating bandwidth is the maximum value of the frequency width allowed for the Ambient-IoT terminal to operate in the uplink defined by the protocol.

7. The method according to claim 6, wherein, At least one of the maximum downlink operating bandwidth, the minimum downlink operating bandwidth, and the maximum uplink operating bandwidth is defined in multiple levels.

8. The method according to claim 6, wherein, The maximum uplink operating bandwidth is determined based on the operating frequency of the energy source node and the frequency offset based on the operating frequency.

9. The method according to claim 6, wherein, Each downlink operating frequency point among the multiple downlink operating frequency points corresponds to at least one of the following frequency-domain requirements: maximum downlink operating bandwidth, minimum downlink operating bandwidth, maximum uplink operating bandwidth.

10. The method according to any one of claims 1 to 9, wherein, The node device includes a network device, and the method further includes: The Ambient-IoT terminal sends capability information to the network device, and the capability information includes the frequency-domain information corresponding to the Ambient-IoT terminal.

11. The method according to any one of claims 1 to 9, wherein, The node device includes a downlink information sending device, and the method further includes: The Ambient-IoT terminal receives indication information sent by the downlink information sending device, and the indication information is used to indicate the Ambient-IoT terminal whose frequency-domain information meets the set conditions to communicate.

12. A communication method, the method comprising: The node device communicates with the Ambient-IoT terminal based on the frequency-domain information corresponding to the Ambient-IoT terminal.

13. The method according to claim 12, wherein, The node devices include at least one of the following: Downlink information sending device or network device; Energy source node; Uplink information receiving device.

14. The method according to claim 13, wherein the node device communicates with the Ambient-IoT terminal based on the frequency domain information corresponding to the Ambient-IoT terminal, including at least one of the following: The downlink information sending device sends downlink information to the Ambient-IoT terminal based on the frequency domain information corresponding to the Ambient-IoT terminal, and / or the energy source node sends a downlink signal to the Ambient-IoT terminal based on the frequency domain information corresponding to the Ambient-IoT terminal; The uplink information receiving device receives the uplink information sent by the Ambient-IoT terminal based on the frequency domain information corresponding to the Ambient-IoT terminal.

15. The method according to any one of claims 12 to 14, wherein, The frequency-domain information includes at least one of the following: Downlink operating frequency points supported by the Ambient-IoT terminal; Downlink operating bandwidth supported by the Ambient-IoT terminal; Uplink operating bandwidth supported by the Ambient-IoT terminal.

16. The method according to any one of claims 12 to 15, wherein, The frequency-domain information corresponding to the Ambient-IoT terminal meets the frequency-domain requirements defined by the protocol.

17. The method according to claim 16, wherein, The frequency-domain requirements include at least one of the following: Multiple downlink operating frequency points; Maximum downlink operating bandwidth; Minimum downlink operating bandwidth; Maximum uplink operating bandwidth; Wherein, the downlink operating frequency point is the center frequency point defined by the protocol for downlink reception of the Ambient-IoT terminal, the maximum downlink operating bandwidth is the maximum value of the frequency width allowed for the Ambient-IoT terminal to operate in the downlink defined by the protocol, the minimum downlink operating bandwidth is the minimum value of the frequency width for the Ambient-IoT terminal to operate in the downlink defined by the protocol, and the maximum uplink operating bandwidth is the maximum value of the frequency width allowed for the Ambient-IoT terminal to operate in the uplink defined by the protocol.

18. The method according to claim 17, wherein, At least one of the maximum downlink operating bandwidth, the minimum downlink operating bandwidth, and the maximum uplink operating bandwidth is defined in multiple levels.

19. The method according to claim 17, wherein, The maximum uplink operating bandwidth is determined according to the operating frequency of the energy source node and the frequency offset based on the operating frequency.

20. The method according to claim 17, wherein Each of the multiple downlink operating frequency points corresponds to at least one of the following frequency domain requirements: maximum downlink operating bandwidth, minimum downlink operating bandwidth, maximum uplink operating bandwidth.

21. The method according to any one of claims 12 to 20, wherein The node device includes a network device, and the method further includes: The network device receives the capability information of the Ambient-IoT terminal, and the capability information includes the frequency domain information corresponding to the Ambient-IoT terminal, or The network device obtains the capability information of the Ambient-IoT terminal from the core network device.

22. The method according to any one of claims 12 to 20, wherein The node device includes a downlink information sending device, and the method further includes: The downlink information sending device sends indication information to the Ambient-IoT terminal, and the indication information is used to indicate the Ambient-IoT terminal whose frequency domain information meets the set conditions to perform communication.

23. An Ambient-IoT terminal, comprising: A transceiver module, configured to communicate with a node device based on corresponding frequency domain information.

24. A node device, comprising: A transceiver module, configured to communicate with the Ambient-IoT terminal based on the frequency domain information corresponding to the Ambient-IoT terminal.

25. An Ambient-IoT terminal, comprising: One or more processors; Wherein, the terminal is used to execute the method according to any one of claims 1 to 11.

26. A node device, comprising: One or more processors; Wherein, the device is used to execute the method according to any one of claims 12 to 22.

27. A communication system, comprising: An Ambient-IoT terminal and a node device, wherein The Ambient-IoT terminal is configured to implement the method according to any one of claims 1 to 11; The node device is configured to implement the method according to any one of claims 12 to 22.

28. A storage medium storing instructions, wherein When the instruction runs on a communication device, the communication device is caused to execute the method according to any one of claims 1 to 11 or any one of claims 12 to 22.

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