WO2025152013A1 - Communication method, first device, second device, communication system and storage medium - Google Patents

Abstract

Provided in the embodiments of the present disclosure are a communication method, a first device, a second device, a communication system and a storage medium, the method being executed by the first device. The method comprises: sending a first command to a second device, the first command being used for generating within a first numerical range a random number associated with the second device; and sending a second command to the second device, the second command comprising a first value, and a result of comparison between the first value and the random number being used for the second device to determine whether to transmit data to the first device. The communication mechanism of the technical solutions provided by the embodiments of the present disclosure can adapt to IoT devices powered by ambient energy.

Description

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

The present disclosure relates to the field of communication technology, and in particular to a communication method, a first device, a second device, a communication system, and a storage medium.

Background Art

In the field of communication technology, an ambient-powered Internet of Things (IoT) device is an IoT device powered by energy harvesting, with the main characteristics of being battery-free or with limited energy storage capacity (for example, using capacitors), and providing energy by harvesting radio waves, light, motion, heat, or any other suitable power source.

Summary of the invention

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

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

According to a first aspect of an embodiment of the present disclosure, a communication method is provided, the method being executed by a first device, the method comprising:

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 numerical range;

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.

According to a second aspect of an embodiment of the present disclosure, a communication method is provided, the method being performed by a second device, the method comprising:

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

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.

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

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;

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.

According to a fourth aspect of an embodiment of the present disclosure, a first device is provided, the first device comprising:

The transceiver module is configured as follows:

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 numerical range;

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.

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

The transceiver module is configured with:

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

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.

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.

According to a seventh aspect of an embodiment of the present disclosure, a first device is provided, the first device comprising:

one or more processors;

Among them, the first device is used by the terminal to execute the communication method described in the first aspect.

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

one or more processors;

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

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.

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

It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the embodiments of the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

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.

FIG. 1a is a schematic diagram showing an architecture of a communication system according to an exemplary embodiment;

Fig. 1b is a schematic diagram showing a backscattering according to an exemplary embodiment;

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

FIG. 1d is a schematic diagram showing a device type according to an exemplary embodiment;

FIG2a is a schematic flow chart of a communication method according to an exemplary embodiment;

Fig. 3a is a schematic flow chart of a communication method according to an exemplary embodiment;

Fig. 3b is a schematic flow chart of a communication method according to an exemplary embodiment;

FIG4a is a schematic flow chart of a communication method according to an exemplary embodiment;

Fig. 4b is a schematic flow chart of a communication method according to an exemplary embodiment;

Fig. 5a is a schematic flow chart of a communication method according to an exemplary embodiment;

Fig. 6a is a schematic flow chart showing a communication method according to an exemplary embodiment;

Fig. 7a is a schematic structural diagram of a first device according to an exemplary embodiment;

Fig. 7b is a schematic structural diagram of a second device according to an exemplary embodiment;

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

Fig. 8b is a schematic structural diagram of a communication device according to an exemplary embodiment.

DETAILED DESCRIPTION

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

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

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 numerical range;

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.

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, thereby providing a reliable data sending mechanism.

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

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.

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.

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

In combination with some embodiments of the first aspect, in some embodiments, the first command includes a tag mask, the tag 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.

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

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:

Country code;

Area code;

Service code;

Environmental IoT Index;

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

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

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

In combination with some embodiments of the first aspect, in some embodiments, the first command includes an identifier of the second type of grouping, and the first 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 contains at least one of the second devices.

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

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 a device selected to send data to the first device, and the second type of group includes at least one of the second devices.

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

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.

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

In combination with some embodiments of the first aspect, in some embodiments, the method further includes:

receiving data sent by the second device;

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.

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

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.

In the above embodiment, the sending method of the first command and the second command is more flexible.

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:

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

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.

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 of the second devices.

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.

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:

Determine a match between the first attribute feature and a second attribute feature of the second device, and determine that the second device is a selected device that sends data to the first device;

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 a device selected to send data to the first device.

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:

Country code;

Area code;

Service code;

Environmental IoT Index;

Electronic Product Code (EPC) in part or in full.

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

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

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 a device selected to send data to the first device, and the second type of group includes at least one of said second devices.

In conjunction with some embodiments of the second aspect, in some embodiments, the identifier of at least one of the second-class 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:

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;

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, sending data and/or an identification of the first device to the first device.

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.

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

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;

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.

In a fourth aspect, an embodiment of the present disclosure provides a first device, the first device comprising:

The transceiver module is configured as follows:

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 numerical range;

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.

In a fifth aspect, an embodiment of the present disclosure provides a second device, wherein the second device includes:

The transceiver module is configured with:

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

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.

In a 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.

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

one or more processors;

Among them, the first device is used to execute the communication method provided by the first aspect.

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

one or more processors;

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

In a ninth aspect, an embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions, and when the instructions are executed on a communication device, the communication device executes the communication method described in the optional implementation of the first and second aspects.

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.

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.

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

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 are all used to execute the method proposed in the embodiment of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding method, which will not be repeated here.

The embodiments of the present disclosure provide a communication method, a first device, a second device, a communication system and a storage medium. In some embodiments, the terms such as communication method, information processing method, information transmission method, etc. can be replaced with each other, and the terms such as communication system, information processing system, etc. can be replaced with each other.

The embodiments of the present disclosure are not exhaustive, but are only 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 of the steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

In each embodiment of the present disclosure, unless otherwise specified or there is a logical conflict, the terms and/or descriptions between the embodiments are consistent and can be referenced to each other, and the technical features in different embodiments can be combined to form a new embodiment based on their internal logical relationships.

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.

In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular form, such as "a", "an", "the", "above", "said", "aforementioned", "this", 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 after the article may be understood as a singular expression or a plural expression.

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

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

In some embodiments, "at least one of A and B", "A and/or B", "A in one case, B in another case", "in response to one case A, in response to another case B", etc., may include the following technical solutions according to 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); in some embodiments, A and B (both A and B are executed). When there are more branches such as A, B, C, etc., the above is also similar.

In some embodiments, the recording method of "A or B" may include the following technical solutions according to 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). When there are more branches such as A, B, C, etc., the above is also similar.

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 restrictions on the position, order, priority, quantity or content of the description objects. The statement of the description object refers to the description in the context of the claims or embodiments, and should not constitute unnecessary restrictions 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", and the "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 the "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes may be the same or different. For example, if the description object is "device", then the "first device" and the "second device" may be the same device or different devices, and their types may be the same or different. For another example, if the description object is "information", then the "first information" and the "second information" may be the same information or different information, and their contents may be the same or different.

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.

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.

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 lower 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", "no more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

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

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

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

In some embodiments, the term "terminal" or "terminal device" may be referred to as "user equipment (UE)", "user terminal (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.

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

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

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

FIG. 1 a is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

As shown in FIG. 1a , a communication system 100 includes a first device 102 and a second device 103

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, which is not limited here, and the second device may be a wireless radio frequency module.

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 (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in a smart city (smart city), and at least one of a wireless terminal device in a smart home (smart home), but is not limited to these.

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 Node B (eNB), a next generation evolved Node B (ng-eNB), a next generation Node B (gNB), a node B (NB), a home node B (HNB), a home evolved node B (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.

In some embodiments, the technical solution of the present disclosure may be applicable to the Open RAN architecture. In this case, the interfaces between access network devices or within access network devices involved in the embodiments of the present disclosure may become internal interfaces of Open RAN, and the processes and information interactions between these internal interfaces may be implemented through software or programs.

In some embodiments, the access network device may be composed of a centralized unit (central unit, CU) and a distributed unit (distributed unit, DU), wherein the CU may also be called a control unit (control unit). The CU-DU structure may be used to split the protocol layer of the access network device, with some functions of the protocol layer being centrally controlled by the CU, and the remaining part or all of the functions of the protocol layer being distributed in the DU, and the DU being centrally controlled by the CU, but not limited to this.

In some embodiments, the 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 the Evolved Packet Core (EPC), the 5G Core Network (5GCN), and the Next Generation Core (NGC).

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. A person skilled in the art 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.

The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1a, or a part of the main body thereof, but are not limited thereto. The subjects are examples. The communication system may include all or part of the subjects in Figure 1a, and may also include other subjects outside Figure 1a. The number and form of the subjects are arbitrary. The connection relationship between the subjects is an example. The subjects may be connected or disconnected, and the connection may be in any way, which may be direct or indirect, and may be wired or wireless.

The embodiments of the present disclosure may be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, the fourth generation mobile communication system (4G), the fifth 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 ... The present invention relates to wireless communication systems such as LTE, Wi-Fi (X), 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) network, Device to Device (D2D) system, Machine to Machine (M2M) system, Internet of Things (IoT) system, Vehicle to Everything (V2X), systems using other communication methods, and next-generation systems expanded based on them. In addition, a combination of multiple systems (for example, a combination of LTE or LTE-A with 5G, etc.) may also be applied.

In some embodiments, in an IoT network, some IoT devices are usually driven by traditional batteries with limited lifespan, which has a negative impact on user experience. The astronomical growth of IoT networks, coupled with the emergence of a large number of IoT devices, has pushed maintenance expenses, including labor and battery costs, to a whole new level. Billions of traditional batteries are discarded every year, and only a small portion can be effectively recycled, which has a harmful impact on the earth's ecosystem. In some extreme environmental conditions, it can be very challenging to maintain the operation of the IoT network and replace batteries. In this regard, battery-free IoT communication has been proposed, which will improve network performance and sustainability and expand application scenarios. In addition, battery-free communication is more environmentally friendly and safer for children and the elderly. By removing traditional batteries, device size and cost can be significantly reduced, paving the way for a variety of new applications.

In some embodiments, in the era of the fifth generation mobile communication technology 5G, various low power wide area (LPWA) technologies, such as machine type communication (MTC), narrowband Internet of Things (NB-IoT), reduced terminal (RedCap), etc., have been developed to meet the growing needs of vertical fields. These LPWA technologies achieve low cost, low power consumption and large-scale connection, 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 the traditional battery of the device). Finally, ultra-low complexity, very small device size/form factor (such as mm thickness), longer life cycle, etc. are required.

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

In some embodiments, the energy obtained from the environment can drive the data transmission and wireless communication of the sensing nodes. The current mainstream low-power IoT communication chips have a power consumption of tens or even hundreds of milliwatts for transmission and reception, while the energy obtained by environmental energy harvesting is only at the microwatt level, which cannot drive these types of nodes to work. Therefore, a new wireless communication technology is needed to reduce the communication energy consumption to tens of microwatts or even less than ten microwatts. The current mainstream method uses backscatter communication technology. Backscatter Communications is one of the key technologies for building a green, energy-saving, low-cost, and flexibly deployable future IoT, and is an important means to achieve "intelligent connection of all things".

In some embodiments, please refer to FIG1b. Backscatter communication is a modulation and transmission technology designed with extremely low power consumption using 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, enhances the reflection of the incident radio frequency signal, and modulates the perception data obtained by itself onto the reflected signal to complete the transmission of the data. This process is similar to 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 the terminal design and significantly reduce the cost of terminal nodes.

In some embodiments, backscatter communication has been widely used in radio frequency identification (RFID) systems, forming many large-scale commercial cases. Its working principle is that the receiver (usually an RFID reader) sends a radio frequency excitation signal to activate the passive node (usually an RFID electronic tag), and the electronic tag uses backscatter communication to modulate its own information into the radio frequency. On the frequency signal, the reader receives the reflected signal of the passive electronic tag and demodulates it to realize information transmission.

In some embodiments, RFID technology also has many disadvantages, such as short coverage distance (the wireless signal will experience double path fading during the communication process, so the path loss is large and the effective communication distance is short), single channel transmission, strict tag alignment, no power control, etc. There is a lot of room for improvement in RFID technology in terms of communication. It is necessary to integrate 3GPP communication technology to improve the wireless communication performance of RFID technology in passive Internet of Things.

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

This new type of IoT device needs to collect radio waves sent by network nodes to obtain energy before it can drive itself to work. Therefore, before obtaining energy, the IoT device is usually in a "shutdown" state, that is, offline. To this end, the communication system needs to support data communication methods with shorter transmission time, lower memory consumption, and more convenient terminal management to complete the data communication process as quickly as possible.

In some embodiments, please refer to FIG. 1c, which shows a network architecture for wireless communication based on ambient energy devices based on backscatter technology.

Architecture 1: Supports direct downlink (DL) and uplink (UL) data reception and transmission between ambient power IoT devices and base stations;

Architecture 2: DL and UL data reception and transmission are performed indirectly between ambient IOT and base station; there are intermediate nodes in the middle to forward data. For example, the intermediate node can be a relay, integrated access backhaul (IAB), UE, or repeater.

Architecture 3: Ambient IOT and the base station directly receive or transmit data in DL or UL; then there is an auxiliary node on UL or DL, which is responsible for receiving or sending UL or receiving DL data. For example, the auxiliary node can be a relay, IAB, UE, repeater.

Architecture 4: DL and UL data reception and transmission are performed directly between ambient IOT and UE; UE is responsible for collecting data and forwarding the collected data to the network side.

In some embodiments, see FIG. 1d , Ambient IOT devices can be divided into three types:

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

Device B: has energy storage, no independent signal generation, i.e. backscatter transmission. The use of stored energy can include amplification of reflected signals;

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

In some embodiments, in the RFID communication system, from the perspective of usage functions, there are three types of commands: 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 necessary.

In some embodiments, after a tag receives a valid Query command, each tag selected according to 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-mentioned tag group, which is conducive to reducing duplicate identification.

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.

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

In some embodiments, only a unified 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.

In some embodiments, after receiving a valid NAK command, the tag switches to the Arbitrate state except for the Ready and Killed states where the tags remain in their original states.

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 is primarily focused on providing a unified method for reading data from RFID tags, writing data to tags, and tag communication.

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

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

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 random number between (0, 2 ^Q – 1) and saves it. If the tag selects zero, it will reply immediately. If it selects a non-zero value, it will wait for QueryAdjust. Or QueryRep command. When receiving the QueryRep command, the random value is reduced by 1, and so on, until the random value is 0, then the tag can feedback data reporting.

It should be noted that, in the above method, 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.

FIG2a is an interactive schematic 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, which is used in a communication system 100, and the method includes:

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

In some embodiments, the second device receives a first command sent by the first device.

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

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

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

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

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.

In some embodiments, the first type of grouping includes at least one of said second devices.

It should be noted that, since the first type of grouping 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.

In some embodiments, the first command includes a second value, where the second value may be an integer. For example, the second value may be a Q value.

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), and the corresponding random number may be X randomly selected within the first numerical range.

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

In some embodiments, the tag mask can be used to select the second device. For example, only tags (i.e., the second device) that match the content of the tag mask are selected tags. The selected tags can report data to the first device.

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

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 selected device to send data to the first device.

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

Country code;

Area code;

Service code;

Environmental IoT Index;

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

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

Exemplarily, the tag mask contains a bitmap indicating which parts the tag mask content contains (i.e. corresponding to the second attribute feature mentioned above).

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

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

For example, the content of the tag mask is "11001+101010", which means that the tag with district code and service code of "11001+101010" in the tag is selected and needs to feedback data to be reported.

It should be noted that the district code and service code can also be a truncated code, for example, only the high xbit district code and/or service code is retained. In this case, the task mask can include indication information indicating whether it is a truncated mask content and the truncated length.

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

Exemplarily, the identifier of the second type of grouping 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.

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 contains at least one of the second devices.

For example, each tag can be grouped according to the id, and the subgroup number to which it belongs is written in the tag, for example, It is written by Operation Administration and Maintenance (OAM) at the beginning of account opening or life cycle. Therefore, the tag mask can also include the bitmap of the subgroup, for example, "00011111", which indicates that the tags with subgorup id 0, 1, 2, 3, 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.

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

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

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

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.

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

Exemplarily, the identifier of the second type of grouping 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.

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.

In some embodiments, the second type of grouping includes at least one of the second devices.

Exemplarily, each tag can be grouped according to the id, and the subgroup group number to which it belongs is written in the tag, for example, written by operation administration and maintenance (OAM) at the beginning of account opening or life cycle. Therefore, the tag mask can also include the bitmap of the subgroup, for example, "00011111", which indicates that the 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.

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).

In some embodiments, the identification of at least one of the second type packets is indicated by a bitmap.

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

In some embodiments, the first command and the second command are sent at different times via the same signaling.

Exemplarily, the first command and the second command may be the same command or different commands. If they are the same command, the command contains indication information for decoding specific content contained in the command. If they are different commands, one information is required to associate the two commands.

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

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

In some embodiments, the first command includes a tag mask, the tag mask is used to indicate a first attribute feature, determine a match between the first attribute feature and a second attribute feature of the second device, and determine that the second device is the selected device to send data to the first device. If the second device is the selected device to send data to the first device, data can be sent to the first device.

Exemplarily, if the random number X generated by the tag is equal to M, then in response to the second command, data is fed back to the first device.

or

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.

In some embodiments, the first command includes a tag mask, the tag mask is used to indicate a first attribute feature, determine that the first attribute feature does not match a second attribute feature of the second device, and determine that the second device is not a device selected to send data to the first device. If the second device is not a device selected to send data to the first device, data cannot be sent to the first device.

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.

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

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.

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

In some embodiments, the term "send" can be interchangeable with terms such as "transmit", "report", and "transmit".

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 changed and freely combined for implementation.

FIG3a is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG3a, the present disclosure embodiment relates to a communication method, which is executed by a first device, and the method includes:

Step S3101: Send the first command.

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.

Step S3102: Send the second command.

The optional implementation of step S3102 can refer to the optional implementation of step S2102 in FIG. 2a and other related parts in the embodiment involved in FIG. 2a, which will not be described in detail here.

The communication method involved in the embodiment of the present disclosure may include at least one of step S3101 to step 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 an independent embodiment. However, it is not limited to this. It should be noted that each step can be implemented independently, or the order can be arbitrarily changed and freely combined for implementation without contradiction.

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 the method includes:

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.

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.

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.

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.

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, the first type of group including at least one of the second devices.

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

In some embodiments, the first command includes a tag mask, which is used to indicate a first attribute feature, and a matching result of the first attribute feature and a 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.

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

Country code;

Area code;

Service code;

Environmental IoT Index;

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

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

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.

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 a device selected to send data to the first device, and the second type of group includes at least one of the second devices.

In some embodiments, the identification of at least one of the second type packets is indicated by a bitmap.

In some embodiments, the method further comprises:

receiving data sent by the second device;

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.

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.

FIG4a is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4a, the present disclosure embodiment relates to a communication method, which is executed by a second device, and the method includes:

Step S4101: Get the first command.

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.

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.

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

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

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

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 default.

Step S4102: Get the second command.

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.

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.

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

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

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

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.

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

The optional implementation of step S4103 can refer to the optional implementation of step S2103 in FIG. 2a and other related parts in the embodiment involved in FIG. 2a, which will not be described in detail here.

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 the order can be arbitrarily changed and freely combined for implementation without contradiction.

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

Step S4201: Receive a first command sent by a first device.

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

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.

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

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.

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.

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, the first type of group including at least one of the second devices.

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

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

Determine a match between the first attribute feature and a second attribute feature of the second device, and determine that the second device is a selected device that sends data to the first device;

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 a device selected to send data to the first device.

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

Country code;

Area code;

Service code;

Environmental IoT Index;

Electronic Product Code (EPC) in part or in full.

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

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.

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 a device selected to send data to the first device, and the second type of group includes at least one of the second devices.

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:

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;

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, sending data and/or an identification of the first device to the first device.

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.

FIG5a is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG5a, the present disclosure embodiment relates to a communication method, which is used in a communication system 100, and the method includes one of the following steps:

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;

Step S5102: 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.

The optional implementation of step S5101 and step S5102 can refer to the optional implementation of the steps in FIG. 2a and other related parts of the embodiment involved in FIG. 2a, which will not be described in detail here.

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

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

Example 1:

Referring to FIG. 6a , a communication method is provided, the method comprising:

Step S6101: Send a first command;

In some embodiments, the tag (corresponding to the second device) receives a 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:

The Q value (corresponding to the second value) is used by the tag to generate and select a random number X of (0, 2 ^Q –1). Or it is used by the tag to randomly select a group number;

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

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

For example, a tag identifier includes the following parts: bitmap is 0110, and the content of the tag mask is district The content of the tag mask is "11001+101010", which means that the tag with the district code and service code of "11001+101010" in the tag identifier is selected and needs to feedback data for reporting.

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 high x bits. In this case, the task mask contains indication information indicating whether the mask content is truncated and the length of the truncation.

In some embodiments, 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.

Furthermore, each tag can be grouped according to the id, and the subgroup group number to which it belongs is written in the tag, for example, written through OAM at the time of account opening or the beginning of the life cycle. Therefore, the tag mask can also contain the subgroup bitmap, for example, 00011111, indicating that the tags with subgorup 0, 1, 2, 3, and 4 are selected and need to perform data feedback reporting. The tag mask can also directly contain the subgroup id to indicate the selected tag.

Step S6102: Generate a random number;

In some embodiments, the tag generates and selects a random number X from (0, 2 ^Q –1).

Step S6103: Send the second command;

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

M value,

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.

For example, each tag can be grouped according to the id, and the subgroup group number to which it belongs is written in the tag, for example, written through OAM at the beginning of account opening or life cycle. Therefore, the tag mask can also contain the subgroup bitmap, for example, 00011111, indicating that the tags with subgorup 0, 1, 2, 3, 4 are selected and need to perform data feedback reporting. The tag mask can also directly contain the subgroup id to indicate the selected tag.

Step S6104: Determine whether the random number is equal to M carried by the second command;

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

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;

or,

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.

Step S6105: Send a response message.

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

It should be noted that, in the disclosed embodiment, the command 1 and command 2 may be the same command or different commands. If they are the same command, the command contains indication information for decoding the specific content contained in the command. If they are different commands, one information is required to associate the two commands.

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

The embodiments of the present disclosure also propose a device for implementing any of the above methods, for example, a device is proposed, the above device includes a unit or module for implementing each step performed by the terminal in any of the above methods. For another example, another device is also proposed, including a unit or module for implementing each step performed by a network device (such as an access network device, a core network function node, a core network device, etc.) in any of the above methods.

It should be understood that the division of the units or modules in the above device is only a division of logical functions, and in actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. In addition, the units or modules in the device can 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 instructions are stored in the memory. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the 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 inside the device or a memory outside the device. Alternatively, the units or modules in the device may be implemented in the form of hardware circuits, and the functions of some or all of the units or modules may be implemented by designing the hardware circuits. The hardware circuits may be understood as one or more processors. For example, in one implementation, the hardware circuits may be application-specific integrated circuits (ASICs), and the functions of some or all of the units or modules may be implemented by designing the logical relationship of the components in the circuits. For example, in another implementation, the hardware circuits may be implemented by programmable logic devices (PLDs), and may be implemented by field programmable gate arrays (FPGAs). Taking 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 through the configuration file, so as to realize the functions of some or all of the above units or modules. All units or modules of the above device can be realized in the form of software called by the processor, or in the form of hardware circuit, or in part in the form of software called by the processor, and the rest in the form of hardware circuit.

In the disclosed embodiments, the processor is a circuit with signal processing capability. In one implementation, the processor may be a circuit with instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which may be understood as a microprocessor), or a digital signal processor (DSP); in another implementation, the processor may implement certain functions through the logical relationship of a hardware circuit, and the logical relationship of the above hardware circuit may be fixed or reconfigurable, such as 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 to implement the hardware circuit configuration may 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 ASIC, such as Neural Network Processing Unit (NPU), Tensor Processing Unit (TPU), Deep Learning Processing Unit (DPU), etc.

FIG7a is a schematic diagram of the structure of the first device 7100 proposed in an embodiment of the present disclosure. As shown in FIG7a, 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 execute at least one of the communication steps such as sending and/or receiving executed 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 execute at least one of the other steps executed by the first device 7100 in any of the above methods, which will not be repeated here.

FIG7b is a schematic diagram of the structure of the second device 7200 proposed in an embodiment of the present disclosure. As shown in FIG7b , 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 the 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.

In some embodiments, the processing module can be a module or 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 replaced with the processor.

FIG8a is a schematic diagram of the structure of a communication device 8100 proposed in an embodiment of the present disclosure. The communication device 8100 may be a network device (e.g., an access network device, a core network device, etc.), or a terminal (e.g., a user device, etc.), or 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. The communication device 8100 may be used to implement the method described in the above method embodiment, and the details may refer to the description in the above method embodiment.

As shown in FIG8a, the communication device 8100 includes one or more processors 8101. The processor 8101 may be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor may be used to process the communication protocol and the communication data, and the central processing unit may be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a program, and process the data of the program. The communication device 8100 is used to execute any of the above methods.

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

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.

In some embodiments, the transceiver may include a receiver and/or a transmitter, and the receiver and the transmitter may be separate or integrated. Optionally, the terms such as transceiver, transceiver unit, transceiver, transceiver circuit, etc. may be replaced with each other, the terms such as transmitter, transmission unit, transmitter, transmission circuit, etc. may be replaced with each other, and the terms such as receiver, receiving unit, receiver, receiving circuit, etc. may be replaced with each other.

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

The communication device 8100 described in the above embodiments 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 and 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, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

Fig. 8b is a schematic diagram of the structure of a chip 8200 provided in an embodiment of the present disclosure. In the case where the communication device 8100 may be a chip or a chip system, reference may be made to the schematic diagram of the structure of the chip 8200 shown in Fig. 8b, but the present invention is not limited thereto.

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

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 the interface circuit 8202 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.

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.

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

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

The present disclosure also proposes a storage medium, on which instructions are stored, and when the instructions are executed on the communication device 8100, the communication device 8100 executes any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited to this, and it can also be a storage medium readable by other devices. Optionally, the storage medium can be a non-transitory storage medium, but is not limited to this, and it can also be a temporary storage medium.

The present disclosure also proposes a program product, which, when executed by the communication device 8100, enables the communication device 8100 to execute any of the above methods. Optionally, the program product is a computer program product.

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

Claims (29)

A communication method, characterized in that the method is performed by a first device, and the method comprises: 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 numerical range; 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. The method according to claim 1 is characterized in that 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 contains at least one of the second devices. The method according to claim 1 is characterized in that the first command includes a second value, and the second value is used to determine the first numerical range. The method according to claim 3 is characterized in that the first command includes a tag mask, the tag 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. The method according to claim 4, 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 IoT Index; Part or all of the Electronic Product Code (EPC). The method according to claim 4 is characterized in that the first attribute feature is indicated by a bitmap. The method according to claim 1 is characterized in that 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. The method according to claim 1 is characterized in that 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 a device selected to send data to the first device, and the second type of group includes at least one of the second devices. The method according to claim 7 or 8 is characterized in that the identification of at least one of the second type groups is indicated by a bitmap. The method according to claim 1 or 4, characterized in that the method further comprises: receiving data sent by the second device; 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. The method according to claim 1 is characterized in that 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. A communication method, characterized in that the method is performed by a second device, and the method comprises: receiving a first command sent by a first device, wherein the first command is used to generate a random number associated with the second device within a first numerical range; 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. The method according to claim 12 is characterized in that 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 contains at least one of the second devices. The method according to claim 12, characterized in that the first command includes a second value, and the second value is used to determine the first numerical range. The method according to claim 14, wherein the first command includes a tag mask, wherein the tag mask is used to indicate a first attribute feature, and the method further comprises at least one of the following: Determine a match between the first attribute feature and a second attribute feature of the second device, and determine that the second device is a selected device that sends data to the first device; 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 a device selected to send data to the first device. 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 IoT Index; Electronic Product Code (EPC) in part or in full. The method according to claim 15 is characterized in that the first attribute feature is indicated by a bitmap. The method according to claim 12 is characterized in that 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. The method according to claim 12 is characterized in that 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 a device selected to send data to the first device, and the second type of group includes at least one of the second devices. The method according to claim 18 or 19 is characterized in that the identification of at least one of the second type groups is indicated by a bitmap. The method according to claim 12 or 15, characterized in that the method further comprises at least one of the following: 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; 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, sending data and/or an identification of the first device to the first device. The method according to claim 12 is characterized in that 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. A communication method, characterized in that the method comprises: 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; 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. A first device, characterized in that the first device comprises: The transceiver module is configured as follows: 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 numerical range; 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. A second device, characterized in that the second device comprises: The transceiver module is configured with: receiving a first command sent by a first device, wherein the first command is used to generate a random number associated with the second device within a first numerical range; 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. 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 described in any one of claims 1 to 8, and the second device is configured to implement the communication method described in any one of claims 9 to 16. A first device, characterized in that the first device comprises: one or more processors; The first device is used by the terminal to execute the communication method according to any one of claims 1 to 11. A second device, wherein the second device comprises: one or more processors; The second device is used to execute the communication method according to any one of claims 12 to 22. A storage medium, wherein the storage medium stores instructions, when the instructions are executed on a communication device, The communication device executes the communication method according to any one of claims 1 to 11 and claims 12 to 22.