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

Abstract

The embodiment of the invention provides a communication method, first equipment, second equipment, a communication system and a storage medium. The method is executed by a first device and comprises the steps that a first command is sent to a second device, and the first command is used for generating a random number associated with the second device within a first numerical value range; and sending a second command to the second device, the second command comprising a first value, the comparison result of the first value and the size of the random number being used by the second device to determine whether to send data to the first device. The communication mechanism of the technical scheme provided by the embodiment of the invention can be adapted to IoT equipment supporting environment power.

Description

Communication method, first device, second device, communication system and storage medium Technical Field

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

[0002] In the field of communication technology, an ambient-powered Internet of Things (IoT) device is an IoT device powered by energy harvesting. Its main feature is that it has no battery or has limited energy storage capacity (for example, using capacitors) and provides energy by harvesting radio waves, light, motion, heat or any other suitable power source.

[0003] Summary of the Invention

[0004] After the introduction of IoT devices that support ambient power, the communication mechanism needs to be adjusted.

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

[0006] According to a first aspect of an embodiment of the present disclosure, a communication method is provided, where the method is performed by a first device and includes:

[0007] Sending a first command to a second device, wherein the first command is used to generate a random number associated with the second device within a first value range;

[0008] A second command is sent to the second device, where the second command includes a first value, and a comparison result between the first value and the random number is used by the second device to determine whether to send data to the first device.

[0009] According to a second aspect of an embodiment of the present disclosure, a communication method is provided, where the method is performed by a second device, and the method includes:

[0010] receiving a first command sent by a first device, where the first command is used to generate a random number associated with the second device within a first numerical range;

[0011] A second command sent by a first device is received, where the second command includes a first value, and a comparison result between the first value and the random number is used by the second device to determine whether to send data to the first device.

[0012] According to a third aspect of an embodiment of the present disclosure, a communication method is provided, the method comprising:

[0013] The first device sends a first command to the second device, where the first command is used to generate a random number associated with the second device within a first value range;

[0014] The first device sends a second command to the second device, where the second command includes a first value, and a comparison result between the first value and the random number is used by the second device to determine whether to send data to the first device.

[0015] According to a fourth aspect of an embodiment of the present disclosure, a first device is provided, the first device including:

[0016] The transceiver module is configured as follows:

[0017] Sending a first command to a second device, wherein the first command is used to generate a random number associated with the second device within a first value range;

[0018] A second command is sent to the second device, where the second command includes a first value, and a comparison result between the first value and the random number is used by the second device to determine whether to send data to the first device.

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

[0020] The transceiver module is configured with:

[0021] receiving a first command sent by a first device, where the first command is used to generate a random number associated with the second device within a first numerical range;

[0022] A second command sent by a first device is received, where the second command includes a first value, and a comparison result between the first value and the random number is used by the second device to determine whether to send data to the first device.

[0023] According to the sixth aspect of an embodiment of the present disclosure, a communication system is provided, which includes a terminal and an access network device, the terminal is configured to implement the communication method provided by the first aspect, and the access network device is configured to implement the communication method provided by the second aspect.

[0024] According to a seventh aspect of an embodiment of the present disclosure, a first device is provided, the first device including:

[0025] one or more processors;

[0026] The first device is used by the terminal to execute the communication method described in the first aspect.

[0027] According to an eighth aspect of an embodiment of the present disclosure, a second device is provided, the second device including:

[0028] one or more processors;

[0029] The second device is used by the terminal to execute the communication method described in the second aspect.

[0030] According to a ninth aspect of an embodiment of the present disclosure, a storage medium is provided, wherein the storage medium stores instructions, and when the instructions are executed on a communication device, the communication device executes the communication method provided by the first aspect or the second aspect.

[0031] The communication mechanism of the technical solution provided by the embodiments of the present disclosure can be adapted to IoT devices that support ambient power.

[0032] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory and are not restrictive of the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the embodiments of the present invention.

[0034] FIG1a is a schematic diagram showing an architecture of a communication system according to an exemplary embodiment;

[0035] FIG1b is a schematic diagram showing backscattering according to an exemplary embodiment;

[0036] FIG1c is a schematic diagram showing a network architecture according to an exemplary embodiment;

[0037] FIG1d is a schematic diagram showing a device type according to an exemplary embodiment;

[0038] FIG2a is a schematic flow chart showing a communication method according to an exemplary embodiment;

[0039] FIG3a is a schematic flow chart showing a communication method according to an exemplary embodiment;

[0040] FIG3 b is a schematic flow chart showing a communication method according to an exemplary embodiment;

[0041] FIG4a is a schematic flow chart showing a communication method according to an exemplary embodiment;

[0042] FIG4b is a schematic flow chart showing a communication method according to an exemplary embodiment;

[0043] FIG5a is a schematic flow chart showing a communication method according to an exemplary embodiment;

[0044] FIG6a is a schematic flow chart showing a communication method according to an exemplary embodiment;

[0045] FIG7a is a schematic structural diagram of a first device according to an exemplary embodiment;

[0046] FIG7b is a schematic structural diagram of a second device according to an exemplary embodiment;

[0047] FIG8a is a schematic structural diagram of a UE according to an exemplary embodiment;

[0048] Fig. 8b is a schematic structural diagram of a communication device according to an exemplary embodiment. DETAILED DESCRIPTION

[0049] Embodiments of the present disclosure provide a communication method, a first device, a second device, a communication system, and a storage medium.

[0050] In a first aspect, an embodiment of the present disclosure provides a communication method, which is performed by a first device and includes:

[0051] Sending a first command to a second device, wherein the first command is used to generate a random number associated with the second device within a first value range;

[0052] A second command is sent to the second device, where the second command includes a first value, and a comparison result between the first value and the random number is used by the second device to determine whether to send data to the first device.

[0053] In the above embodiment, after receiving the first command and the second command sent by the first device, the second device can determine whether to send data to the first device based on the comparison result of the random number determined by the first command and the first value determined by the second command, providing a reliable data sending mechanism.

[0054] In combination with some embodiments of the first aspect, in some embodiments, the random number indicates a group number of the first type of grouping allocated by the first device to the second device.

[0055] In the above embodiment, after receiving the first command and the second command sent by the first device, at least one of the second devices included in the first category group can determine whether to send data to the first device based on the comparison result of the random number determined by the first command and the first value determined by the second command, thereby providing a reliable data sending mechanism.

[0056] In combination with some embodiments of the first aspect, in some embodiments, the first command includes a second value, and the second value is used to determine the first numerical range.

[0057] In the above embodiment, the second device may determine the first numerical range based on the second value included in the first command.

[0058] In combination with some embodiments of the first aspect, in some embodiments, the first command includes a label mask, the label mask is used to indicate a first attribute feature, and the matching result of the first attribute feature and the second attribute feature of the second device is used for: the second device to determine whether the second device is the selected device to send data to the first device.

[0059] In the above embodiment, after receiving the first command, the second device may determine whether the second device is the device selected to send data to the first device based on the tag mask included in the first command.

[0060] In conjunction with some embodiments of the first aspect, in some embodiments, the first attribute feature and the second attribute feature include at least one of the following:

[0061] Country code;

[0062] Area code;

[0063] Service code;

[0064] Environmental IoT Index;

[0065] Part or all of the Electronic Product Code (EPC).

[0066] In combination with some embodiments of the first aspect, in some embodiments, the first attribute feature is indicated by a bitmap.

[0067] In the above embodiment, the first attribute feature can be flexibly indicated by a bitmap.

[0068] In combination with some embodiments of the first aspect, in some embodiments, the first command includes an identifier of a second type of group, the second device associated with the identifier of the second type of group is the device selected to send data to the first device, and the second type of group includes at least one of the second devices.

[0069] In the above embodiment, after receiving the first command, the second device may determine whether the second device is the device selected to send data to the first device based on the identifier of the second type of group included in the first command.

[0070] In combination with some embodiments of the first aspect, in some embodiments, the second command includes an identifier of a second type of group, the second device associated with the identifier of the second type of group is the device selected to send data to the first device, and the second type of group includes at least one of the second devices.

[0071] In the above embodiment, after receiving the second command, the second device may determine whether the second device is the device selected to send data to the first device based on the identifier of the second type of group included in the second command.

[0072] In combination with some embodiments of the first aspect, in some embodiments, the identifier of at least one of the second-category groups is indicated by a bitmap.

[0073] In the above embodiment, the identifier of at least one of the second-type packets may be indicated by a bitmap.

[0074] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0075] receiving data sent by the second device;

[0076] The first value is the same as the size of the random number, or the first value is the same as the size of the random number and the first attribute feature matches the second attribute feature.

[0077] In the above embodiment, when the first value is the same as the random number or when the first value is the same as the random number and the first attribute characteristic matches the second attribute characteristic, the data sent by the second device is received.

[0078] In combination with some embodiments of the first aspect, in some embodiments, the first command and the second command are sent through different signaling, and the different signaling are associated through predetermined information; or, the first command and the second command are sent through the same signaling at different times.

[0079] In the above embodiment, the sending manner of the first command and the second command is more flexible.

[0080] In the above embodiment, in a second aspect, an embodiment of the present disclosure provides a communication method, which is performed by a second device and includes:

[0081] receiving a first command sent by a first device, where the first command is used to generate a random number associated with the second device within a first numerical range;

[0082] A second command sent by a first device is received, where the second command includes a first value, and a comparison result between the first value and the random number is used by the second device to determine whether to send data to the first device.

[0083] In combination with some embodiments of the second aspect, in some embodiments, the random number indicates a group number of a first type of group allocated by the first device to the second device, and the first type of group includes at least one second device.

[0084] In combination with some embodiments of the second aspect, in some embodiments, the first command includes a second value, and the second value is used to determine the first numerical range.

[0085] In conjunction with some embodiments of the second aspect, in some embodiments, the first command includes a tag mask, where the tag mask is used to indicate the first attribute feature, and the method further includes at least one of the following:

[0086] determining a match between the first attribute characteristic and a second attribute characteristic of the second device, and determining the second device as a device selected to send data to the first device;

[0087] It is determined that the first attribute characteristic does not match the second attribute characteristic of the second device, and it is determined that the second device is not the device selected to send data to the first device.

[0088] In conjunction with some embodiments of the second aspect, in some embodiments, the first attribute feature and the second attribute feature include at least one of the following:

[0089] Country code;

[0090] Area code;

[0091] Service code;

[0092] Environmental IoT Index;

[0093] Electronic Product Code (EPC) in part or in full.

[0094] In combination with some embodiments of the second aspect, in some embodiments, the first attribute feature is indicated by a bitmap.

[0095] In combination with some embodiments of the second aspect, in some embodiments, the first command includes an identifier of a second type of group, the second device associated with the identifier of the second type of group is the device selected to send data to the first device, and the second type of group includes at least one of the second devices.

[0096] In combination with some embodiments of the second aspect, in some embodiments, the second command includes an identifier of a second type of group, the second device associated with the identifier of the second type of group is the device selected to send data to the first device, and the second type of group includes at least one of the second devices.

[0097] In conjunction with some embodiments of the second aspect, in some embodiments, the identifier of at least one of the second-category packets is indicated by a bitmap. In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes at least one of the following:

[0098] In response to receiving the second command, determining that the first value is the same as the random number, and sending data to the first device;

[0099] In response to receiving the second command, determining that the first value is the same size as the random number and the first attribute characteristic matches the second attribute characteristic, and sending data and / or an identification of the first device to the first device.

[0100] In combination with some embodiments of the second aspect, in some embodiments, the first command and the second command are received through different signaling, and the different signaling are associated through predetermined information; or, the first command and the second command are received through the same signaling at different times.

[0101] In a third aspect, an embodiment of the present disclosure provides a communication method, the method comprising:

[0102] The first device sends a first command to the second device, where the first command is used to generate a random number associated with the second device within a first value range;

[0103] The first device sends a second command to the second device, where the second command includes a first value, and a comparison result between the first value and the random number is used by the second device to determine whether to send data to the first device.

[0104] In a fourth aspect, an embodiment of the present disclosure provides a first device, the first device including:

[0105] The transceiver module is configured as follows:

[0106] Sending a first command to a second device, wherein the first command is used to generate a random number associated with the second device within a first value range;

[0107] A second command is sent to the second device, where the second command includes a first value, and a comparison result between the first value and the random number is used by the second device to determine whether to send data to the first device.

[0108] In a fifth aspect, an embodiment of the present disclosure provides a second device, the second device including:

[0109] The transceiver module is configured with:

[0110] receiving a first command sent by a first device, where the first command is used to generate a random number associated with the second device within a first numerical range;

[0111] A second command sent by a first device is received, where the second command includes a first value, and a comparison result between the first value and the random number is used by the second device to determine whether to send data to the first device.

[0112] In the sixth aspect, an embodiment of the present disclosure provides an information indication system, wherein the communication system includes a terminal and an access network device, the terminal is configured to implement the communication method described in the optional implementation manner of the first aspect, and the access network device is configured to implement the communication method described in the optional implementation manner of the second aspect.

[0113] In a seventh aspect, an embodiment of the present disclosure provides a first device, the first device including:

[0114] one or more processors;

[0115] The first device is used to execute the communication method provided by the first aspect.

[0116] In an eighth aspect, an embodiment of the present disclosure provides a second device, the second device including:

[0117] one or more processors;

[0118] The second device is used to execute the communication method provided by the second aspect.

[0119] In a ninth aspect, an embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions, which, when executed on a communication device, enable the communication device to execute the communication 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 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.

[0121] In an eleventh 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.

[0122] In a twelfth 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.

[0123] It is understandable that the first device, the second device, the communication system, the storage medium, the program product, the computer program, the chip, or the chip system described above are all used to perform the method 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.

[0124] The present disclosure provides a communication method, a first device, a second device, a communication system, and a storage medium. In some embodiments, the terms communication method, information processing method, information transmission method, etc. are interchangeable, and the terms communication system, information processing system, etc. are interchangeable.

[0125] 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.

[0126] 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.

[0127] 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.

[0128] 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.

[0129] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0130] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0131] 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.

[0132] 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.

[0133] 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.

[0134] 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.

[0135] 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.

[0136] 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.

[0137] 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.

[0138] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0139] 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.

[0140] 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.

[0141] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0142] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0143] 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.

[0144] FIG1a is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0145] As shown in FIG1a , a communication system 100 includes a first device 102 and a second device 103

[0146] In some embodiments, the first device may be a terminal, an access network device, or a core network device. Here, the first device may also be referred to as a reader, a receiver, a transmitter, or a transceiver, without limitation, and the second device may be a wireless radio frequency module.

[0147] In some embodiments, the terminal includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0148] In some embodiments, the access network device may be, 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 Wi-Fi system, but is not limited thereto.

[0149] 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.

[0150] 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.

[0151] In some embodiments, a core network device may be a device including one or more network elements, or may be multiple devices or device groups, each including all or part of the one or more network elements. The network element may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0152] 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.

[0153] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1a, or a portion thereof, but are not limited thereto. The entities shown in FIG1a are illustrative only. The communication system may include all or a portion of the entities shown in FIG1a, or may include other entities other than those shown in FIG1a. The number and form of the entities may be arbitrary. The connection relationship between the entities is illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0154] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0155] In some cases, IoT devices in IoT networks are often powered by traditional batteries with limited lifespans, negatively impacting user experience. The astronomical growth of IoT networks, coupled with the proliferation of IoT devices, has pushed maintenance expenses, including labor and battery costs, to a whole new level. Billions of traditional batteries are discarded each year, with only a small fraction effectively recycled, negatively impacting the Earth's ecosystem. Maintaining IoT network operations and replacing batteries can be extremely challenging in extreme environmental conditions. Battery-free IoT communications have been proposed to improve network performance and sustainability, expanding their application scenarios. Furthermore, battery-free communications are more environmentally friendly and safer for children and the elderly. Eliminating traditional batteries significantly reduces device size and cost, paving the way for a variety of new applications.

[0156] In some embodiments, in the era of the fifth generation mobile communication technology 5G, various low power wide area (LPWA) technologies have been developed, such as machine type communication (MTC), narrowband Internet of Things (NB-IoT), reduced capability (RedCap), etc., to meet the growing needs of vertical fields. These LPWA technologies achieve low cost, low power consumption and large-scale connectivity, which can meet the requirements of many applications. However, there are still many use cases and applications that cannot be solved in the following situations. First, devices driven by traditional batteries are not applicable, such as in extreme environmental conditions (such as high voltage, extremely high / low temperature, humid environment). Second, maintenance-free equipment is required (for example, there is no need to replace traditional batteries of the device). Finally, ultra-low complexity, very small device size / form factor (such as mm thickness), longer life cycle, etc. are required.

[0157] In some embodiments, ambient powered IoT is a promising technology that can address the unmet needs described above. An ambient powered IoT device is an IoT device that is powered by energy harvesting, either without a battery or with limited energy storage capabilities (e.g., using capacitors), by harvesting radio waves, light, motion, heat, or any other suitable power source.

[0158] In some embodiments, energy harvested from the environment can drive data transmission and wireless communications among sensor nodes. Current mainstream low-power IoT communication chips consume tens or even hundreds of milliwatts of power for both transmission and reception, while ambient energy harvesting only captures microwatts, making them inadequate for powering these nodes. Therefore, new wireless communication technologies are needed to reduce communication energy consumption to tens or even below ten microwatts. Backscatter communications, currently a mainstream approach, is a key technology for building a green, energy-efficient, and flexibly deployable future IoT, and a crucial means of achieving the "Intelligent Connection of Everything."

[0159] In some embodiments, please refer to Figure 1b. Backscatter communication is a modulation and transmission technology designed with extremely low power consumption, which utilizes the principle of backscattering of radio frequency signals. Backscatter communication was first proposed by Stockman. When the radio frequency signal reaches the surface of an object, a part of it will be reflected. The sending node adjusts the matching between the receiving antenna and the impedance according to the information to be sent, thereby enhancing the reflection of the incident radio frequency signal and modulating the perception data acquired by itself onto the reflected signal to complete the transmission of the data. This process is similar to that of a reflector. 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, and high-precision filters, and does not require complex baseband processing. Therefore, it can simplify terminal design and significantly reduce the cost of terminal nodes.

[0160] In some embodiments, backscatter communication has been widely used in Radio Frequency Identification (RFID) systems, resulting in numerous large-scale commercial applications. Its operating principle is that a receiver (typically an RFID reader) transmits a radio frequency excitation signal, activating a passive node (typically an RFID tag). The tag then uses backscatter communication to modulate its information onto the radio frequency signal. The reader then receives the reflected signal from the passive tag and demodulates it, achieving information transmission.

[0161] In some embodiments, RFID technology also has numerous drawbacks, such as limited coverage (the wireless signal experiences double-path fading during the round-trip communication process, resulting in high path loss and a short effective communication range), single-channel transmission, the need for strict tag alignment, and a lack of power control. RFID technology still has significant room for improvement in communication. Integration with 3GPP communication technologies is needed to improve the wireless communication performance of RFID technology in the passive IoT.

[0162] The expected new type of IoT devices have the characteristics of low memory, low processing power, low power consumption, small data transmission, and massive deployment. Environmental IoT devices can be maintenance-free and have a long service life (for example, more than 10 years).

[0163] These new IoT devices require energy from radio waves transmitted by network nodes to power themselves. Therefore, until they receive energy, they are typically powered off, meaning they are disconnected from the network. To address this, the communication system must support data communication methods with shorter transmission times, lower memory consumption, and more convenient terminal management to expedite data communication.

[0164] In some embodiments, see FIG1c, which shows a network architecture for wireless communication based on ambient energy devices using backscatter technology.

[0165] Architecture 1: Direct downlink (DL) and uplink (UL) data reception and transmission between ambient power IoT devices and base stations.

[0166] Architecture 2: DL and UL data reception and transmission are performed indirectly between the ambient IoT and the base station; intermediate nodes exist in the middle to forward data. For example, the intermediate nodes can be relays, integrated access backhaul (IAB), UEs, and repeaters.

[0167] Architecture 3: Ambient IoT and the base station directly transmit or receive data in the DL or UL. Auxiliary nodes are located on the UL or DL, responsible for receiving or sending UL or DL ​​data. Examples of auxiliary nodes include relays, IABs, UEs, and repeaters.

[0168] Architecture 4: Direct DL and UL data reception and transmission between ambient IoT and UE; UE is responsible for collecting data and forwarding it to the network.

[0169] In some embodiments, referring to FIG1d , Ambient IoT devices can be divided into three types:

[0170] Device A: No energy storage, no independent signal generation / amplification, i.e. backscatter transmission;

[0171] Device B: has energy storage but no independent signal generation, i.e., backscatter transmission. The use of stored energy may include amplification of the reflected signal.

[0172] Device C: has energy storage and independent signal generation, i.e., active RF components for transmission.

[0173] In some embodiments, RFID communication systems are functionally classified into three categories: tag selection (Select), inventory (Inventory), and access (Access). Among them, there are five inventory commands: Query, QueryAdjust, QueryRep, ACK, and NAK, all of which are required.

[0174] In some embodiments, after a tag receives a valid Query command, each tag selected by the set criteria generates a random number (similar to rolling a dice), and each tag with a random number of zero will generate a response (send back a temporary password RN16, where RN16 is a 16-bit random number) and transfer to the Reply state; tags that meet other conditions will change certain attributes and flags, thereby exiting the above tag group, which is conducive to reducing duplicate identification.

[0175] In some embodiments, after receiving a valid QueryAdjust command, each tag generates a new random number (like re-rolling a dice), and the rest is the same as Query.

[0176] In some embodiments, after receiving a valid QueryRep command, the tag only decrements the original random number of each tag in the tag group by one, and the rest is the same as Query.

[0177] In some embodiments, only a single tag can receive a valid ACK command (using the above-mentioned RN16, or handle Handle - a 16-bit random number that temporarily represents the tag identity. This is a security mechanism). After receiving it, it sends back the content in the EPC area, which is the most basic function of the EPC protocol.

[0178] In some embodiments, after receiving a valid NAK command, the tag switches to the Arbitrate state except for the Ready or Killed states where the tag remains in the original state.

[0179] In some embodiments, an RFID system that complies with the RFID EPC global Class 1 Generation 2 (EPC C1G2) standard operates in the 860-960 MHz frequency band. The EPC C1G2 standard primarily provides a unified method for reading data from RFID tags, writing data to tags, and tag communication.

[0180] In some embodiments, the EPC C1G2 protocol standard is a half-duplex protocol, which allows only one reader to send a signal or only one tag to send a signal in one transmission.

[0181] In some embodiments, the reader and tag do not transmit signals at the same time.

[0182] In some embodiments, based on the Query command, the reader will configure a Q value for the tag. Based on the Q value, the tag randomly selects a value between (0, 2 Q The tag selects a random number (0-1) and saves it. If the tag selects zero, it responds immediately; if it selects a non-zero value, it waits for a QueryAdjust or QueryRep command. Upon receiving a QueryRep command, the random value is decremented by 1, and so on, until the random value reaches 0, at which point the tag can report data.

[0183] It should be noted that if the tag does not receive the QueryRep command, the decrement random number will be missed. At the same time, the network side cannot repeatedly request data reporting for this tag.

[0184] FIG2a is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG2a, the present disclosure embodiment relates to a communication method for a communication system 100, the method comprising:

[0185] Step S2101: The first device sends a first command to the second device.

[0186] In some embodiments, the second device receives the first command sent by the first device.

[0187] In some embodiments, the first device may be a receiver, such as, but not limited to, a radio frequency identification (RFID) reader.

[0188] In some embodiments, the second device may be a passive node, such as an RFID tag, but is not limited thereto.

[0189] In some embodiments, the first command is used to generate a random number associated with the second device.

[0190] In some embodiments, the first command is used to generate a random number associated with the second device within a first range of values.

[0191] In some embodiments, the random number indicates a group number of the first type of group assigned by the first device to the second device.

[0192] In some embodiments, the first type of group includes at least one of the second devices.

[0193] It should be noted that, since the first type of group includes at least one second device, after the group number of the at least one second device is determined, the at least one second device can jointly send data to the first device based on the group number.

[0194] In some embodiments, the first command includes a second value, where the second value may be an integer, for example, a Q value.

[0195] In some embodiments, the second value is used to determine the first numerical range. For example, the first numerical range determined based on the Q value is (0, 2 Q –1), the corresponding random number may be X randomly selected within the first value range.

[0196] In some embodiments, the first command includes a tag mask.

[0197] In some embodiments, a tag mask can be used to select the second device. For example, only tags whose tags (i.e., the second device) match the contents of the tag mask are selected. The selected tags can report data to the first device.

[0198] In some embodiments, a label mask is used to indicate the first attribute feature.

[0199] In some embodiments, the matching result of the first attribute feature and the second attribute feature of the second device is used by the second device to determine whether the second device is the device selected to send data to the first device.

[0200] In some embodiments, the first attribute feature and the second attribute feature include at least one of the following:

[0201] Country code;

[0202] Area code;

[0203] Service code;

[0204] Environmental IoT Index;

[0205] Part or all of the Electronic Product Code (EPC).

[0206] In some embodiments, the first attribute characteristic is indicated by a bitmap.

[0207] Exemplarily, the tag mask includes a bitmap indicating which parts the tag mask content includes (ie, corresponding to the second attribute feature mentioned above).

[0208] Exemplarily, the content may include: Country code, District code, Service code and Ambient IOT index. If the bitmap is "0110", it indicates that the content of the tag mask is the district code and service code.

[0209] In some embodiments, the first attribute feature may be directly indicated.

[0210] For example, the content of the tag mask is "11001+101010", which means that the tags with the district code and service code of "11001+101010" in the tag are selected and need to feedback data for reporting.

[0211] It should be noted that the district code and service code can also be a truncated code, for example, only retaining the high-order x bits of the district code and / or service code. In this case, the task mask can include information indicating whether the mask content is truncated and the length of the truncation.

[0212] In some embodiments, the first command includes an identifier (ID) of a second type of subgroup (Subgroup).

[0213] Exemplarily, the identifier of the second type of group is Subgroup id bitmap or sub group id, which is used to filter and select tags, that is, to select tags that need to respond to execution data reporting.

[0214] In some embodiments, the second device associated with the identifier of the second type of group is a device selected to send data to the first device, and the second type of group includes at least one second device.

[0215] For example, each tag can be grouped according to its ID, and the subgroup group number to which it belongs is written in the tag, for example, by Operation Administration and Maintenance (OAM) at account opening or at the beginning of its lifecycle. Therefore, the tag mask can also include a subgroup bitmap, for example, "00011111", indicating that tags with subgorup IDs 0, 1, 2, 3, and 4 are selected and need to perform data feedback reporting. In some embodiments, the tag mask can also directly include the subgroup ID to indicate the selected tag.

[0216] Step S2102: The first device sends a second command to the second device.

[0217] In some embodiments, the second device receives the second command sent by the first device.

[0218] In some embodiments, the second command includes a first value. The first value may be an integer, for example, the first value is M.

[0219] In some embodiments, a comparison result of the first value and the random number is used by the second device to determine whether to send data to the first device.

[0220] In some embodiments, the second command includes an identification of the second type of packet.

[0221] Exemplarily, the identifier of the second type of group is Subgroup id bitmap or sub group id, which is used to filter and select tags, that is, to select tags that need to respond to execution data reporting.

[0222] In some embodiments, the second device associated with the identifier of the second type of group is the device selected to send data to the first device.

[0223] In some embodiments, the second type of group includes at least one of the second devices.

[0224] For example, each tag can be grouped according to its ID, and the subgroup group number to which it belongs is written in the tag, for example, by Operation Administration and Maintenance (OAM) at account opening or at the beginning of its lifecycle. Therefore, the tag mask can also include a subgroup bitmap, for example, "00011111", indicating that tags with subgorup IDs 0, 1, 2, 3, and 4 are selected and need to perform data feedback reporting. In some embodiments, the tag mask can also directly include the subgroup ID to indicate the selected tag.

[0225] In some embodiments, the second type of grouping may be determined based on hardware attributes of the second device, which is different from the first type of grouping described above (the first type of grouping is determined based on a random number).

[0226] In some embodiments, the identity of at least one of the second type packets is indicated by a bitmap.

[0227] In some embodiments, the first command and the second command are sent via different signaling, and the different signaling are associated via predetermined information.

[0228] In some embodiments, the first command and the second command are sent at different times through the same signaling.

[0229] For example, the first command and the second command may be the same command or different commands. If they are the same command, the command includes instruction information for decoding the specific content included in the command. If they are different commands, one information is required to associate the two commands.

[0230] Step S2103: The second device determines whether to send data to the first device.

[0231] In some embodiments, the second device determines whether to send data to the first device based on the first command and the second command.

[0232] In some embodiments, the first command includes a tag mask, the tag mask being used to indicate a first attribute characteristic, determining a match between the first attribute characteristic and a second attribute characteristic of the second device, and determining that the second device is the device selected to send data to the first device. If the second device is the device selected to send data to the first device, the data may be sent to the first device.

[0233] Exemplarily, if the random number X generated by the tag is equal to M, then the second command is responded to and data is fed back to the first device.

[0234] or

[0235] If the random number X generated by the tag is equal to M and / or belongs to the subgroup indicated by the reader, the second command is responded to and data is fed back to the first device.

[0236] In some embodiments, the first command includes a tag mask, the tag mask being used to indicate a first attribute characteristic, and determining that the first attribute characteristic does not match a second attribute characteristic of the second device determines that the second device is not the device selected to send data to the first device. If the second device is not the device selected to send data to the first device, data may not be sent to the first device.

[0237] Exemplarily, if the random number X generated by the tag is not equal to M, the second command is ignored and no data is reported to the first device.

[0238] In some embodiments, in response to receiving the second command, determining that the first value is the same size as the random number, and sending data to the first device.

[0239] In some embodiments, in response to receiving the second command, determining that the first value is the same size as the random number and the first attribute characteristic matches the second attribute characteristic, data and / or an identification of the first device is sent to the first device.

[0240] In some embodiments, the term "information" can be interchangeable with terms such as "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "field", and "data".

[0241] In some embodiments, the term "send" can be interchanged with terms such as "transmit", "report", and "transmit".

[0242] The communication method involved in the embodiments of the present disclosure may include at least one of steps S2101 to S2103. For example, step S2101 can be implemented as an independent embodiment, step S2102 can be implemented as an independent embodiment, and step S2103 can be implemented as an independent embodiment. For example, step S2101 combined with step S2102 can be implemented as an independent embodiment, step S2101 combined with step S2103 can be implemented as an independent embodiment, step S2102 combined with step S2103 can be implemented as an independent embodiment, and step S2101 combined with step S2102 and step S2103 can be implemented as independent embodiments, but is not limited to this. It should be noted that each step can be implemented independently, or, if there is no contradiction, the order can be arbitrarily permuted and freely combined for implementation.

[0243] Figure 3a is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in Figure 3a, the embodiment of the present disclosure relates to a communication method, which is executed by a first device and includes:

[0244] Step S3101: Send the first command.

[0245] In some embodiments, the optional implementation of step S3101 can refer to the optional implementation of step S2101 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0246] Step S3102: Send the second command.

[0247] The optional implementation of step S3102 can refer to the optional implementation of step S2102 in Figure 2a and other related parts in the embodiment involved in Figure 2a, which will not be repeated here.

[0248] The communication method involved in the embodiments of the present disclosure may include at least one of steps S3101 to S3102. For example, step S3101 can be implemented as an independent embodiment, and step S3102 can be implemented as an independent embodiment. For example, step S3101 combined with step S3102 can be implemented as independent embodiments. However, this is not limited to this. It should be noted that each step can be implemented independently, or, if there is no conflict, can be arbitrarily reversed and freely combined for implementation.

[0249] FIG3b is a flow chart 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 a first device and includes:

[0250] Step S3201: Send a first command to a second device, where the first command is used to generate a random number associated with the second device within a first numerical range.

[0251] In some embodiments, the optional implementation of step S3201 can refer to the optional implementation of step S2101 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0252] Step S3202: Send a second command to the second device, where the second command includes a first value, and a comparison result between the first value and the random number is used by the second device to determine whether to send data to the first device.

[0253] In some embodiments, the optional implementation of step S3202 can refer to the optional implementation of step S2102 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0254] In some embodiments, the random number indicates a group number of a first type of group allocated by the first device to the second device, where the first type of group includes at least one of the second devices.

[0255] In some embodiments, the first command includes a second value, and the second value is used to determine the first numerical range.

[0256] In some embodiments, the first command includes a tag mask, which is used to indicate a first attribute feature, and the matching result of the first attribute feature and the second attribute feature of the second device is used by the second device to determine whether the second device is the selected device to send data to the first device.

[0257] In some embodiments, the first attribute feature and the second attribute feature include at least one of the following:

[0258] Country code;

[0259] Area code;

[0260] Service code;

[0261] Environmental IoT Index;

[0262] Part or all of the Electronic Product Code (EPC).

[0263] In some embodiments, the first attribute characteristic is indicated by a bitmap.

[0264] In some embodiments, the first command includes an identifier of a second type of group, the second device associated with the identifier of the second type of group is a device selected to send data to the first device, and the second type of group includes at least one of the second devices.

[0265] In some embodiments, the second command includes an identifier of a second type of group, the second device associated with the identifier of the second type of group is the device selected to send data to the first device, and the second type of group includes at least one of the second devices.

[0266] In some embodiments, the identity of at least one of the second type packets is indicated by a bitmap.

[0267] In some embodiments, the method further comprises:

[0268] receiving data sent by the second device;

[0269] The first value is the same as the size of the random number, or the first value is the same as the size of the random number and the first attribute feature matches the second attribute feature.

[0270] In some embodiments, the first command and the second command are sent through different signaling, and the different signaling are associated through predetermined information; or, the first command and the second command are sent through the same signaling at different times.

[0271] Figure 4a is a flow chart 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 second device, and the method includes:

[0272] Step S4101: Get the first command.

[0273] In some embodiments, the optional implementation of step S4101 can refer to the optional implementation of step S2101 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0274] In some embodiments, the access network device receives the first command sent by the terminal, but is not limited thereto and may also receive the first command sent by other entities.

[0275] In some embodiments, the access network device obtains a first command specified by the protocol.

[0276] In some embodiments, the access network device obtains the first command from an upper layer(s).

[0277] In some embodiments, the access network device performs processing to obtain the first command.

[0278] In some embodiments, step S4101 is omitted, and the core network device autonomously implements the function indicated by the first command, or the above function is default or by default.

[0279] Step S4102: Get the second command.

[0280] In some embodiments, the optional implementation of step S4102 can refer to the optional implementation of step S2102 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0281] In some embodiments, the access network device receives the second command sent by the terminal, but is not limited thereto and may also receive the second command sent by other entities.

[0282] In some embodiments, the access network device obtains a second command specified by the protocol.

[0283] In some embodiments, the access network device obtains the second command from an upper layer(s).

[0284] In some embodiments, the access network device performs processing to obtain the second command.

[0285] In some embodiments, step S4102 is omitted, and the core network device autonomously implements the function indicated by the second command, or the above function is default or default.

[0286] Step S4103: Determine whether to send data to the first device.

[0287] The optional implementation of step S4103 can refer to the optional implementation of step S2103 in Figure 2a and other related parts in the embodiment involved in Figure 2a, which will not be repeated here.

[0288] The communication method involved in the embodiments of the present disclosure may include at least one of steps S4101 to S4103. For example, step S4101 can be implemented as an independent embodiment, step S4102 can be implemented as an independent embodiment, and step S4103 can be implemented as an independent embodiment. For example, step S4101 combined with step S4103 can be implemented as an independent embodiment, step S4102 combined with step S4103 can be implemented as an independent embodiment, and step S4101 combined with step S4102 and step S4103 can be implemented as an independent embodiment, but is not limited to this. It should be noted that each step can be implemented independently, or, if there is no contradiction, the order can be arbitrarily reversed and freely combined for implementation.

[0289] FIG4b is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4b, the embodiment of the present disclosure relates to a communication method, which is executed by a second device, and the method includes:

[0290] Step S4201: Receive a first command sent by a first device.

[0291] In some embodiments, the first command is used to generate a random number associated with the second device within a first numerical range.

[0292] In some embodiments, the optional implementation of step S4201 can refer to the optional implementation of step S2101 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0293] Step S4202: Receive a second command sent by the first device.

[0294] In some embodiments, the second command includes a first value, and a comparison result between the first value and the random number is used by the second device to determine whether to send data to the first device.

[0295] In some embodiments, the optional implementation of step S4202 can refer to the optional implementation of step S2102 in Figure 2a and other related parts of the embodiment involved in Figure 2a, which will not be repeated here.

[0296] In some embodiments, the random number indicates a group number of a first type of group allocated by the first device to the second device, where the first type of group includes at least one of the second devices.

[0297] In some embodiments, the first command includes a second value, and the second value is used to determine the first numerical range.

[0298] In some embodiments, the first command includes a tag mask, where the tag mask is used to indicate the first attribute feature, and the method further includes at least one of the following:

[0299] determining a match between the first attribute characteristic and a second attribute characteristic of the second device, and determining the second device as a device selected to send data to the first device;

[0300] It is determined that the first attribute characteristic does not match the second attribute characteristic of the second device, and it is determined that the second device is not the device selected to send data to the first device.

[0301] In some embodiments, the first attribute feature and the second attribute feature include at least one of the following:

[0302] Country code;

[0303] Area code;

[0304] Service code;

[0305] Environmental IoT Index;

[0306] Electronic Product Code (EPC) in part or in full.

[0307] In some embodiments, the first attribute characteristic is indicated by a bitmap.

[0308] In some embodiments, the first command includes an identifier of a second type of group, the second device associated with the identifier of the second type of group is a device selected to send data to the first device, and the second type of group includes at least one of the second devices.

[0309] In some embodiments, the second command includes an identifier of a second type of group, the second device associated with the identifier of the second type of group is the device selected to send data to the first device, and the second type of group includes at least one of the second devices.

[0310] In some embodiments, the identification of at least one of the second type of packets is indicated by a bitmap. In some embodiments, the method further comprises at least one of the following:

[0311] In response to receiving the second command, determining that the first value is the same as the random number, and sending data to the first device;

[0312] In response to receiving the second command, determining that the first value is the same size as the random number and the first attribute characteristic matches the second attribute characteristic, and sending data and / or an identification of the first device to the first device.

[0313] In some embodiments, the first command and the second command are received through different signaling, and the different signaling are associated through predetermined information; or, the first command and the second command are received through the same signaling at different times.

[0314] Figure 5a is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 5a, the embodiment of the present disclosure relates to a communication method, which is used in a communication system 100. The method includes one of the following steps:

[0315] Step S5101: The first device sends a first command to the second device, where the first command is used to generate a random number associated with the second device within a first numerical range;

[0316] Step S5102: The first device sends a second command to the second device, where the second command includes a first value. A comparison result of the first value and the random number is used by the second device to determine whether to send data to the first device.

[0317] Optional implementations of step S5101 and step S5102 can be found in the optional implementations of the steps in FIG2a and other related parts of the embodiment involved in FIG2a, and will not be described in detail here.

[0318] In some embodiments, the above method may include the methods of the above embodiments on the communication system side, the first device side, the second device side, etc., which will not be repeated here.

[0319] In order to better understand the embodiments of the present disclosure, the present disclosure is further described below through some exemplary embodiments:

[0320] Example 1:

[0321] Referring to FIG6a , a communication method is provided, the method comprising:

[0322] Step S6101: Send the first command;

[0323] In some embodiments, the tag (corresponding to the second device) receives command 1 (corresponding to the first command) from the reader (corresponding to the first device), and the command 1 includes one of the following information:

[0324] Q value (corresponding to the second value) is used to generate a tag and select a (0, 2 Q –1) a random number X. Or a group number used to randomly select a group for a tag;

[0325] Tag mask (a tag mask) is used for tag selection. That is, only tags whose contents match the mask are considered selected tags. Tags that need to respond to execution data reporting.

[0326] In some embodiments, the tag mask can be of variable length and content. For example, the tag mask includes a bitmap indicating which parts the tag mask content (first attribute feature) includes. The tag mask can also include a tag mask content indicating the content part that the tag needs to match.

[0327] For example, a tag identifier consists of the following parts: a bitmap of 0110, a tag mask containing the district code and service code, and a tag mask containing "11001+101010" indicating that the tag identifier with the district code and service code of "11001+101010" is selected and requires data reporting.

[0328] In some embodiments, the district code and service code may also be a truncated code, for example, a district code and / or service code containing the high x bits. In this case, the task mask includes information indicating whether the mask content is truncated and the length of the truncation.

[0329] In some embodiments, the subgroup id bitmap or sub group id is used to filter and select tags, that is, to select tags that need to respond to the execution data report.

[0330] Furthermore, each tag can be grouped by ID. The subgroup group number is written into the tag, for example, via OAM at account opening or at the beginning of its lifecycle. Therefore, the tag mask can also include a subgroup bitmap, such as 00011111, indicating that tags with subgroups 0, 1, 2, 3, and 4 are selected for data feedback reporting. The tag mask can also directly include the subgroup ID to indicate the selected tag.

[0331] Step S6102: Generate a random number;

[0332] In some embodiments, a tag is generated and a (0, 2 Q –1) a random number X.

[0333] Step S6103: Send the second command;

[0334] In some embodiments, the second command includes one of the following information:

[0335] M value,

[0336] Subgroup id bitmap or sub group id is used to filter and select tags, that is, to select tags that need to respond to execution data reporting.

[0337] For example, each tag can be grouped by ID. The subgroup group number is written into the tag, for example, via OAM at account opening or at the beginning of its lifecycle. Therefore, the tag mask can also include a subgroup bitmap, such as 00011111, indicating that tags with subgorup values ​​0, 1, 2, 3, and 4 are selected for data feedback reporting. The tag mask can also directly include the subgroup ID to indicate the selected tag.

[0338] Step S6104: Determine whether the random number is equal to M carried in the second command;

[0339] In some embodiments, if the random number X generated by the tag is not equal to M, the command 2 is ignored.

[0340] In some embodiments, if the random number X generated by the tag is equal to M, then respond to command 2 and feed back data to the network side;

[0341] or,

[0342] If the random number X generated by the tag is equal to M and / or belongs to the subgroup indicated by the reader, it responds to command 2 and feeds back data to the network side.

[0343] Step S6105: Send a response message.

[0344] In some embodiments, the response message may include the reported data or an identification of the second device.

[0345] It should be noted that in the disclosed embodiments, Command 1 and Command 2 may be the same command or different commands. If they are the same command, the command contains instruction information for decoding the specific content contained in the command. If they are different commands, one piece of information is required to associate the two commands.

[0346] In the embodiments of the present disclosure, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations of other embodiments.

[0347] 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.

[0348] 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.

[0349] 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.

[0350] Figure 7a is a schematic diagram of the structure of the first device 7100 proposed in an embodiment of the present disclosure. As shown in Figure 7a, the first device 7100 may include: at least one of a transceiver module 7101, a processing module 7102, etc. In some embodiments, the transceiver module 7101 is used to receive the first information. Optionally, the transceiver module 7101 is used to perform at least one of the communication steps such as sending and / or receiving performed by the first device 7100 in any of the above methods, which will not be repeated here. Optionally, the processing module 7102 is used to perform at least one of the other steps performed by the first device 7100 in any of the above methods, which will not be repeated here.

[0351] Figure 7b is a schematic diagram of the structure of the second device 7200 proposed in an embodiment of the present disclosure. As shown in Figure 7b, the second device 7200 may include: at least one of a transceiver module 7201, a processing module 7202, etc. In some embodiments, the transceiver module 7201 is used to send the first information. Optionally, the transceiver module 7201 is used to perform at least one of the communication steps such as sending and / or receiving performed by the second device 7200 in any of the above methods, which will not be repeated here. In some embodiments, the transceiver module 7201 may include a sending module and / or a receiving module, and the sending module and the receiving module may be separate or integrated together. Optionally, the transceiver module 7201 may be interchangeable with a transceiver. Optionally, the processing module 7202 is used to perform at least one of the other steps performed by the second device 7200 in any of the above methods, which will not be repeated here.

[0352] 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.

[0353] Figure 8a is a schematic diagram of the structure of a communication device 8100 proposed in an embodiment of the present disclosure. Communication device 8100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 8100 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.

[0354] As shown in Figure 8a, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (such as a base station, baseband chip, terminal device, terminal device chip, DU or CU, etc.), execute programs, and process program data. The communication device 8100 is used to perform any of the above methods.

[0355] In some embodiments, the communication device 8100 further includes one or more memories 8102 for storing instructions. Optionally, all or part of the memories 8102 may be located outside the communication device 8100.

[0356] In some embodiments, the communication device 8100 further includes one or more transceivers 8103. When the communication device 8100 includes one or more transceivers 8103, the transceiver 8103 performs at least one of the communication steps such as sending and / or receiving in the above method, and the processor 8101 performs at least one of the other steps.

[0357] In some embodiments, a transceiver may include a receiver and / or a transmitter. The receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0358] In some embodiments, the communication device 8100 may include one or more interface circuits 8104. Optionally, the interface circuit 8104 is connected to the memory 8102. The interface circuit 8104 may be configured to receive signals from the memory 8102 or other devices, and may be configured to send signals to the memory 8102 or other devices. For example, the interface circuit 8104 may read instructions stored in the memory 8102 and send the instructions to the processor 8101.

[0359] The communication device 8100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG. 8a. 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.

[0360] FIG8b is a schematic diagram of the structure of a chip 8200 according to an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 8200 shown in FIG8b, but the present disclosure is not limited thereto.

[0361] The chip 8200 includes one or more processors 8201 , and the chip 8200 is configured to execute any of the above methods.

[0362] In some embodiments, the chip 8200 further includes one or more interface circuits 8202. Optionally, the interface circuit 8202 is connected to the memory 8203. The interface circuit 8202 can be used to receive signals from the memory 8203 or other devices, and can be used to send signals to the memory 8203 or other devices. For example, the interface circuit 8202 can read instructions stored in the memory 8203 and send the instructions to the processor 8201.

[0363] In some embodiments, the interface circuit 8202 performs at least one of the communication steps such as sending and / or receiving in the above method, and the processor 8201 performs at least one of the other steps.

[0364] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0365] In some embodiments, the chip 8200 further includes one or more memories 8203 for storing instructions. Alternatively, all or part of the memories 8203 may be outside the chip 8200.

[0366] The present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto, and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto, and may also be a temporary storage medium.

[0367] The present disclosure also provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0368] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. A communication method, characterized in that, The method is executed by a first device, and the method includes: Sending a first command to a second device, where the first command is used to generate a random number associated with the second device within a first numerical range; Sending a second command to the second device, where the second command contains a first value, and the comparison result between the first value and the size of the random number is used for the second device to determine whether to send data to the first device.

2. The method according to claim 1, wherein The random number indicates the group number of a first type of packet allocated by the first device for the second device, and the first type of packet includes at least one of the second devices.

3. The method according to claim 1, wherein The first command contains a second value, and the second value is used to determine the first numerical range.

4. The method according to claim 3, characterized in that, The first command contains a tag mask, and the tag mask is used to indicate a first attribute feature. The matching result between the first attribute feature and a second attribute feature of the second device is used for: the second device to determine whether the second device is the selected device to send data to the first device.

5. The method according to claim 4, wherein The first attribute feature and the second attribute feature include at least one of the following: Country code; Area code; Service code; Environmental Internet of Things index; Part or all of the Electronic Product Code EPC.

6. The method according to claim 4, characterized in that, The first attribute feature is indicated by a bitmap.

7. The method according to claim 1, characterized in that, The first command contains an identifier of a second type of packet, and the second device associated with the identifier of the second type of packet is the selected device to send data to the first device. The second type of packet includes at least one of the second devices.

8. The method according to claim 1, characterized in that The second command contains an identifier of a second type of packet, and the second device associated with the identifier of the second type of packet is the selected device to send data to the first device. The second type of packet includes at least one of the second devices.

9. The method according to claim 7 or 8, characterized in that, The identifier of at least one of the second type of packets is indicated by a bitmap.

10. The method according to claim 1 or 4, characterized in that, The method further includes: Receiving data sent by the second device; Wherein, the first value is the same as the size of the random number, or the first value is the same as the size of the random number and the first attribute feature matches the second attribute feature.

11. The method according to claim 1, wherein The first command and the second command are sent through different signaling, and the different signaling is associated through predetermined information; or the first command and the second command are sent through the same signaling at different times.

12. A communication method, characterized in that, The method is executed by a second device, and the method includes: Receiving a first command sent by a first device, where the first command is used to generate a random number associated with the second device within a first numerical range; Receiving a second command sent by a first device, where the second command contains a first value, and the comparison result between the first value and the size of the random number is used for the second device to determine whether to send data to the first device.

13. The method according to claim 12, wherein The random number indicates the group number of a first type of packet allocated by the first device for the second device, and the first type of packet includes at least one of the second devices.

14. The method according to claim 12, wherein The first command contains a second value, and the second value is used to determine the first numerical range.

15. The method according to claim 14, characterized in that, The first command contains a tag mask, and the tag mask is used to indicate a first attribute feature. The method further includes at least one of the following: Determine the match between the first attribute feature and the second attribute feature of the second device, and determine that the second device is the selected device for sending data to the first device; Determine the mismatch between the first attribute feature and the second attribute feature of the second device, and determine that the second device is not the selected device for sending data to the first device.

16. The method according to claim 15, characterized in that, The first attribute feature and the second attribute feature include at least one of the following: Country code; Area code; Service code; Environmental Internet of Things index; All or part of the Electronic Product Code (EPC).

17. The method according to claim 15, characterized in that The first attribute feature is indicated by a bitmap.

18. The method according to claim 12, wherein The first command includes an identifier of a second type of packet, and the second device associated with the identifier of the second type of packet is the selected device for sending data to the first device, and the second type of packet includes at least one of the second devices.

19. The method according to claim 12, wherein The second command includes an identifier of a second type of packet, and the second device associated with the identifier of the second type of packet is the selected device for sending data to the first device, and the second type of packet includes at least one of the second devices.

20. The method according to claim 18 or 19, characterized in that, The identifier of at least one of the second type of packets is indicated by a bitmap.

21. The method according to claim 12 or 15, characterized in that, The method further includes at least one of the following: In response to receiving the second command, determine that the first value is the same as the random number, and send data to the first device; In response to receiving the second command, determine that the first value is the same as the random number and the first attribute feature matches the second attribute feature, and send data and / or the identifier of the first device to the first device.

22. The method according to claim 12, wherein The first command and the second command are received through different signaling, and the different signaling is associated through predetermined information; or, the first command and the second command are received through the same signaling at different times.

23. A communication method, characterized in that, The method includes: A first device sends a first command to a second device, and the first command is used to generate a random number associated with the second device within a first numerical range; The first device sends a second command to the second device, and the second command includes a first value, and the comparison result of the sizes of the first value and the random number is used for the second device to determine whether to send data to the first device.

24. A first device, characterized in that, The first device includes: A transceiver module, configured to: Send a first command to a second device, and the first command is used to generate a random number associated with the second device within a first numerical range; Send a second command to the second device, and the second command includes a first value, and the comparison result of the sizes of the first value and the random number is used for the second device to determine whether to send data to the first device.

25. A second device, characterized in that, The second device includes: A transceiver module, configured to: Receive the first command sent by the first device, and the first command is used to generate a random number associated with the second device within a first numerical range; Receive the second command sent by the first device, and the second command includes a first value, and the comparison result of the sizes of the first value and the random number is used for the second device to determine whether to send data to the first device.

26. A communication system, characterized in that, The information indication system includes a first device and a second device; the first device is configured to implement the communication method according to any one of claims 1 to 8, and the second device is configured to implement the communication method according to any one of claims 9 to 16.

27. A first device, characterized in that, The first device includes: One or more processors; Wherein, the first device is used for the terminal to execute the communication method according to any one of claims 1 to 11.

28. A second device, wherein, The second device includes: One or more processors; Wherein, the second device is used to execute the communication method according to any one of claims 12 to 22.

29. A storage medium, wherein, The storage medium stores instructions that, when the instructions run on a communication device, cause the communication device to execute the communication method according to any one of claims 1 to 11 and claims 12 to 22.

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