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

Abstract

Provided in the embodiments of the present disclosure are a communication method, a first device, a second device, and a storage medium. The method is executed by the first device, and the method comprises: determining a random number on the basis of a priority associated with a first device, wherein the random number is used for triggering, when a first quantity has changed to a first value, the first device to send information to a second device, and the first quantity is the number of instances of receiving a first command from the second device. The communication mechanism in the technical solution provided by the embodiments of the present disclosure is applicable to IoT devices for supporting environmental power.

Description

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

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

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

[0003] Summary of the Invention

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

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

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

[0007] determining a random number based on a priority associated with the first device;

[0008] The random number is used to trigger the first device to send information to the second device when the random number changes to a first value based on a first number, and the first number is the number of times the first command is received from the second device.

[0009] According to a second aspect of an embodiment of the present disclosure, a terminal is provided, comprising:

[0010] The processing module is configured to:

[0011] determining a random number based on a priority associated with the first device;

[0012] The random number is used to trigger the first device to send information to the second device when the random number changes to a first value based on a first number, and the first number is the number of times the first command is received from the second device.

[0013] According to a third aspect of an embodiment of the present disclosure, a terminal is provided, comprising:

[0014] one or more processors;

[0015] The terminal is used to execute the communication method described in the first aspect.

[0016] According to a fourth 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.

[0017] The communication mechanism of the technical solution provided by the embodiments of the present disclosure can be adapted to IoT devices that support ambient power.

[0018] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory and are not restrictive of the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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.

[0020] FIG1a is a schematic diagram showing an architecture of a communication system according to an exemplary embodiment;

[0021] FIG1b is a schematic diagram showing backscattering according to an exemplary embodiment;

[0022] FIG1c is a schematic diagram showing a network architecture according to an exemplary embodiment;

[0023] FIG1d is a schematic diagram showing a device type according to an exemplary embodiment;

[0024] FIG2a is a schematic flow chart showing a communication method according to an exemplary embodiment;

[0025] FIG3a is a schematic flow chart showing a communication method according to an exemplary embodiment;

[0026] FIG3 b is a schematic flow chart showing a communication method according to an exemplary embodiment;

[0027] FIG4a is a schematic flow chart showing a communication method according to an exemplary embodiment;

[0028] FIG5a is a schematic flow chart showing a communication method according to an exemplary embodiment;

[0029] FIG6a is a schematic structural diagram of a first device according to an exemplary embodiment;

[0030] FIG6b is a schematic structural diagram of a second device according to an exemplary embodiment;

[0031] FIG7a is a schematic structural diagram of a UE according to an exemplary embodiment;

[0032] Fig. 7b is a schematic structural diagram of a communication device according to an exemplary embodiment. DETAILED DESCRIPTION

[0033] Embodiments of the present disclosure provide a communication method, a terminal, and a storage medium.

[0034] In a first aspect, an embodiment of the present disclosure provides a communication method, which is performed by a first device and includes:

[0035] determining a random number based on a priority associated with the first device;

[0036] The random number is used to trigger the first device to send information to the second device when the random number changes to a first value based on a first number, and the first number is the number of times the first command is received from the second device.

[0037] In the above embodiment, since the random number is determined based on the priority associated with the first device, the random number can adapt to the priority, so that the random number adapted to the priority can be used to trigger the first device to send information to the second device when the first number changes to the first value, thereby giving priority to the first device associated with a high priority and reducing the waiting time of the first device associated with a high priority.

[0038] In combination with some embodiments of the first aspect, in some embodiments, the priority information is stored in the first device.

[0039] In the above embodiment, since the priority information is stored in the first device, the first device can quickly determine the priority of the first device.

[0040] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0041] receiving first information sent by the second device, where the first information is used to indicate a Q value, where the Q value is a positive integer greater than 0;

[0042] The determining a random number based on the priority associated with the first device includes:

[0043] Determining the random number from a range of values ​​determined based on the Q value and N;

[0044] There is a first mapping relationship between the priority and N, N is determined based on the priority associated with the first device and the first mapping relationship, and N is a positive integer greater than 0.

[0045] In the above embodiment, the random number may be determined based on the Q value and the first mapping relationship between the priority and N.

[0046] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0047] receiving second information sent by the second device, where the second information is used to indicate at least two sets, a second mapping relationship exists between the priorities and the sets, and the sets include at least one Q value, where the Q value is a positive integer greater than 0;

[0048] The determining a random number based on the priority associated with the first device includes:

[0049] Determining the random number from a range of values ​​determined based on the Q value in the first set determined from the at least two sets;

[0050] The first set is determined based on the priority associated with the first device and the second mapping relationship.

[0051] In the above embodiment, the random number may be determined from a numerical range determined based on the Q value in the first set determined from the at least two sets according to the second mapping relationship.

[0052] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0053] receiving third information sent by the second device, where the third information is used to indicate at least two Q values, a third mapping relationship exists between the priorities and the Q values, and the Q values ​​are positive integers greater than 0;

[0054] The determining a random number based on the priority associated with the first device includes:

[0055] Determining the random number from a range of values ​​determined based on the Q value;

[0056] The Q value is determined based on the priority associated with the first device and the third mapping relationship.

[0057] In the above embodiment, the random number may be determined from a numerical range determined according to the third mapping relationship.

[0058] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0059] receiving fourth information sent by the second device, where the fourth information is used to indicate at least two Q values, where the Q value is a positive integer greater than 0;

[0060] receiving fifth information sent by the second device, where the fifth information is used to indicate at least two random factors, and a fourth mapping relationship exists between the priorities and the random factors;

[0061] The determining a random number based on the priority associated with the first device includes:

[0062] Randomly generate a second value within a predetermined numerical range; compare the second value with a random factor determined based on the priority associated with the first device; determine that the first value is greater than the random factor and the fourth information indicates a Q value, and determine that a value rounded up or down of Q / 2 is the random number, or, determine that the first value is greater than the random factor and the fourth information indicates at least two Q values, and determine that a minimum value of the at least two Q values ​​is the random number.

[0063] In the above embodiment, the random number may be determined jointly based on the random factor determined based on the fourth mapping relationship and Q.

[0064] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0065] receiving sixth information sent by the second device, where the sixth information is used to indicate a Q value, where the Q value is a positive integer greater than 0;

[0066] The determining a random number based on the priority associated with the first device includes:

[0067] determining the random number based on the Q value, the priority, and seventh information;

[0068] The seventh information is used to indicate at least one of the following:

[0069] the power level of the first device;

[0070] Network coverage;

[0071] Business urgency.

[0072] In the above-described embodiment, the random number may be determined based on the Q value, the priority, and the seventh information.

[0073] In the above embodiment, in a second aspect, an embodiment of the present disclosure provides a communication method, which is performed by an access network device, and includes:

[0074] receiving first information sent by a terminal;

[0075] The first information is used to request that the terminal operate as a reader for passive Internet of Things (IoT) communication.

[0076] In conjunction with some embodiments of the second aspect, in some embodiments, sending the first information to the access network device includes:

[0077] During a radio resource control (RRC) connection establishment process or after the RRC connection is established, the first information sent by the terminal is received.

[0078] In a second aspect, an embodiment of the present disclosure provides a terminal, the terminal including:

[0079] The processing module is configured to:

[0080] determining a random number based on a priority associated with the first device;

[0081] The random number is used to trigger the first device to send information to the second device when the random number changes to a first value based on a first number, and the first number is the number of times the first command is received from the second device.

[0082] In a third aspect, an embodiment of the present disclosure provides a terminal, the terminal including:

[0083] one or more processors;

[0084] The terminal is used to execute the communication method provided by the first aspect.

[0085] In a fourth aspect, an embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions, which, when the instructions are executed on a communication device, enable the communication device to execute the communication method described in the optional implementation manner of the first aspect.

[0086] In a fifth 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 manner of the first aspect.

[0087] In a sixth 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 manner of the first aspect.

[0088] In a seventh aspect, an embodiment of the present disclosure provides a chip or a chip system, which includes a processing circuit configured to execute the method described in the optional implementation of the first aspect.

[0089] It is understandable that the first device, the second device, the storage medium, the program product, the computer program, the chip, or the chip system are all used to perform the method proposed in the embodiment of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding method and will not be repeated here.

[0090] The present disclosure provides a communication method, a first device, a second device, and a storage medium. In some embodiments, the terms communication method, information processing method, information transmission method, etc. are interchangeable, and the terms communication system, information processing system, etc. are interchangeable.

[0091] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0092] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0093] 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.

[0094] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0095] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0096] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0097] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0098] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0099] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0100] 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.

[0101] 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.

[0102] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0103] In some embodiments, devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0104] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0105] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)", "base station (BS)", "radio base station", "fixed station", and in some embodiments may also be understood as "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission and / or reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)", etc.

[0106] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)", "user terminal" "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc.

[0107] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0108] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0109] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0110] FIG1a is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0111] As shown in FIG. 1 a , a communication system 100 includes a terminal 101 , a network device 102 and a first device 103 .

[0112] The second device in the present disclosure may be the terminal 101 or the network device 102 .

[0113] In some embodiments, the network device includes an access network device and a core network device.

[0114] In some embodiments, the terminal includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0115] In some embodiments, the access network device may be, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0116] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0117] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0118] In some embodiments, a core network device may be a device including one or more network elements, or may be multiple devices or device groups, each including all or part of the one or more network elements. The network element may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0119] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.

[0120] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1a, or a portion thereof, but are not limited thereto. The entities shown in FIG1a are illustrative only. The communication system may include all or a portion of the entities shown in FIG1a, or may include other entities other than those shown in FIG1a. The number and form of the entities may be arbitrary. The connection relationship between the entities is illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0121] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0122] In some cases, IoT devices in IoT networks are often powered by traditional batteries with limited lifespans, negatively impacting user experience. The astronomical growth of IoT networks, coupled with the proliferation of IoT devices, has pushed maintenance expenses, including labor and battery costs, to a whole new level. Billions of traditional batteries are discarded each year, with only a small fraction effectively recycled, negatively impacting the Earth's ecosystem. Maintaining IoT network operations and replacing batteries can be extremely challenging in extreme environmental conditions. Battery-free IoT communications have been proposed to improve network performance and sustainability, expanding their application scenarios. Furthermore, battery-free communications are more environmentally friendly and safer for children and the elderly. Eliminating traditional batteries significantly reduces device size and cost, paving the way for a variety of new applications.

[0123] In some embodiments, in the era of the fifth generation mobile communication technology 5G, various low power wide area (LPWA) technologies have been developed, such as machine type communication (MTC), narrowband Internet of Things (NB-IoT), reduced capability (RedCap), etc., to meet the growing needs of vertical fields. These LPWA technologies achieve low cost, low power consumption and large-scale connectivity, which can meet the requirements of many applications. However, there are still many use cases and applications that cannot be solved in the following situations. First, devices driven by traditional batteries are not applicable, such as in extreme environmental conditions (such as high voltage, extremely high / low temperature, humid environment). Second, maintenance-free equipment is required (for example, there is no need to replace traditional batteries of the device). Finally, ultra-low complexity, very small device size / form factor (such as mm thickness), longer life cycle, etc. are required.

[0124] In some embodiments, ambient powered IoT is a promising technology that can address the unmet needs described above. An ambient powered IoT device is an IoT device that is powered by energy harvesting, either without a battery or with limited energy storage capabilities (e.g., using capacitors), by harvesting radio waves, light, motion, heat, or any other suitable power source.

[0125] In some embodiments, energy harvested from the environment can drive data transmission and wireless communications among sensor nodes. Current mainstream low-power IoT communication chips consume tens or even hundreds of milliwatts of power for both transmission and reception, while ambient energy harvesting only captures microwatts, making them inadequate for powering these nodes. Therefore, new wireless communication technologies are needed to reduce communication energy consumption to tens or even below ten microwatts. Backscatter communications, currently a mainstream approach, is a key technology for building a green, energy-efficient, and flexibly deployable future IoT, and a crucial means of achieving the "Intelligent Connection of Everything."

[0126] In some embodiments, please refer to Figure 1b. Backscatter communication is a modulation and transmission technology designed with extremely low power consumption, which utilizes the principle of backscattering of radio frequency signals. Backscatter communication was first proposed by Stockman. When the radio frequency signal reaches the surface of an object, a part of it will be reflected. The sending node adjusts the matching between the receiving antenna and the impedance according to the information to be sent, thereby enhancing the reflection of the incident radio frequency signal and modulating the perception data acquired by itself onto the reflected signal to complete the transmission of the data. This process is similar to that of a reflector. Compared with other communication technologies, backscatter communication does not require a complex radio frequency structure, reduces the use of devices such as power amplifiers, high-precision crystal oscillators, duplexers, and high-precision filters, and does not require complex baseband processing. Therefore, it can simplify terminal design and significantly reduce the cost of terminal nodes.

[0127] In some embodiments, backscatter communication has been widely used in Radio Frequency Identification (RFID) systems, resulting in numerous large-scale commercial applications. Its operating principle is that a receiver (typically an RFID reader) transmits a radio frequency excitation signal, activating a passive node (typically an RFID tag). The tag then uses backscatter communication to modulate its information onto the radio frequency signal. The reader then receives the reflected signal from the passive tag and demodulates it, achieving information transmission.

[0128] In some embodiments, RFID technology also has numerous drawbacks, such as limited coverage (the wireless signal experiences double-path fading during the round-trip communication process, resulting in high path loss and a short effective communication range), single-channel transmission, the need for strict tag alignment, and a lack of power control. RFID technology still has significant room for improvement in communication. Integration with 3GPP communication technologies is needed to improve the wireless communication performance of RFID technology in the passive IoT.

[0129] The expected new type of IoT devices have the characteristics of low memory, low processing power, low power consumption, small data transmission, and massive deployment. Environmental IoT devices can be maintenance-free and have a long service life (for example, more than 10 years).

[0130] These new IoT devices require energy from radio waves transmitted by network nodes to power themselves. Therefore, until they receive energy, they are typically powered off, meaning they are disconnected from the network. To address this, the communication system must support data communication methods with shorter transmission times, lower memory consumption, and more convenient terminal management to expedite data communication.

[0131] In some embodiments, see FIG1c, which shows a network architecture for wireless communication based on ambient energy devices using backscatter technology.

[0132] Architecture 1: Direct downlink (DL) and uplink (UL) data reception and transmission between ambient power IoT devices and base stations.

[0133] Architecture 2: DL and UL data reception and transmission are performed indirectly between the ambient IoT and the base station; intermediate nodes exist in the middle to forward data. For example, the intermediate nodes can be relays, integrated access backhaul (IAB), UEs, and repeaters.

[0134] Architecture 3: Ambient IoT and the base station directly transmit or receive data in the DL or UL. Auxiliary nodes are located on the UL or DL, responsible for receiving or sending UL or DL ​​data. Examples of auxiliary nodes include relays, IABs, UEs, and repeaters.

[0135] Architecture 4: Direct DL and UL data reception and transmission between ambient IoT and UE; UE is responsible for collecting data and forwarding it to the network.

[0136] In some embodiments, referring to FIG1d , Ambient IoT devices can be divided into three types:

[0137] Device A: No energy storage, no independent signal generation / amplification, i.e. backscatter transmission;

[0138] Device B: has energy storage but no independent signal generation, i.e., backscatter transmission. The use of stored energy may include amplification of the reflected signal.

[0139] Device C: has energy storage and independent signal generation, i.e., active RF components for transmission.

[0140] In some embodiments, the following constraints are imposed on ambient IoT devices:

[0141] The overall goal should be to develop a harmonized air interface design that minimizes differences in ambient IoT environments (if necessary) to support the following devices:

[0142] Peak power consumption is ~1W, with energy storage capability and an initial sampling frequency offset (SFO) of up to 10X ppm. There is no DL or UL amplification in the device. The UL transmission of the device is backscattered on an externally provided carrier.

[0143] ≤ several hundred W peak power consumption1, with energy storage, initial sampling frequency offset (SFO) up to 10X ppm, and in-device DL and / or UL amplification. The device’s UL transmission can be generated internally or backscattered on an externally provided carrier.

[0144] X will be determined by the working group.

[0145] In some embodiments, in order to support data transmission of A-IoT devices, the network needs to support the following functions: A device in the network can support one or more functions.

[0146] In some embodiments, the function as an energy source (ES) is only used for device type B and type C.

[0147] In some embodiments, the downlink transmission (DT) function sends indication information to the A-IoT device, thereby triggering uplink transmission of the A-IoT device.

[0148] In some embodiments, the continuous wave (CW) excitation function is used only by devices A and B. A-IoT devices achieve uplink transmission by backscattering CW. CW is actually a type of ES, and A-IoT devices can receive CW and store energy.

[0149] In some embodiments, the uplink receiving (UR) function receives uplink information backscattered by the A-IoT device, or receives uplink information actively transmitted by the A-IoT device.

[0150] In some embodiments, the device performing the above-mentioned ES, DT, CW, or UR functions may be a UE, a repeater, a relay, or a base station. A device may support only one of the above-mentioned functions. Alternatively, a device may support multiple of the above-mentioned functions simultaneously. Alternatively, a device may support all of the above-mentioned functions simultaneously.

[0151] In some embodiments, in an RFID communication system, commands are divided into three categories based on their functionality: Select, Inventory, and Access. There are five Inventory commands: Query, QueryAdjust, QueryRep, ACK, and NAK, all of which are mandatory.

[0152] In some embodiments, after a tag receives a valid Query command, each tag selected by the set criteria generates a random number (similar to rolling a dice), and each tag whose random number is zero will generate a response (send back a temporary password RN16 - a 16-bit random number) and transfer to the Reply state; tags that meet other conditions will change certain attributes and flags, thereby exiting the above tag group, which helps to reduce duplicate identification.

[0153] 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.

[0154] In some embodiments, after receiving a valid QueryRep command, the tag only decrements the original random number of each tag in the tag group by one, and the rest is the same as Query.

[0155] In some embodiments, only a single tag can receive a valid ACK command (using the aforementioned RN16, or handle—a 16-bit random number temporarily representing the tag's identity, as a security mechanism!). Upon receipt, it then sends back the contents of the EPC area—the most basic function of the EPC protocol.

[0156] In some embodiments, after receiving a valid NAK command, the tag switches to the Arbitrate state except for the Ready or Killed states where the tag remains in the original state.

[0157] In some embodiments, in the relevant RFID, after the tag receives the Query command from the interrogator, the Query command carries a Q, and the value of Q is (0..15). The tag will generate a random number (0..2Q-1) using the random number generator RNG based on the Q value.

[0158] In some embodiments, each time a QueryRep is received, the random number is reduced by 1 until it reaches 0, and the tag can then perform backscattering to send information to the interrogator (or reader).

[0159] In some embodiments, all tags are randomly generated using RN16 (corresponding to a random number) based on the Q value configured on the network side. Tags are treated equally without any priority distinction. In actual network deployments, goods or target entities identified by different tags may have different levels of importance or have different latency requirements for information feedback or transmission, such as sensors, so the priority processing of different tags needs to be considered.

[0160] In the present disclosure, exemplarily, by generating RN16 (corresponding to a random number) based on priority, the RN16 generated by a high-priority tag is likely to be smaller, thereby shortening the queuing time of the tag.

[0161] FIG2a is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG2a, the present disclosure embodiment relates to a communication method for a communication system 100, the method comprising:

[0162] Step S2101: The second device sends information to the first device.

[0163] In some embodiments, the first device receives information sent by the network device.

[0164] In some embodiments, the first device may be a tag, and the second device may be a reader. It should be noted that the second device may also be an interrogator, which is not limited here.

[0165] In some embodiments, the second device may be a terminal, an access network device, or a core network device.

[0166] In some embodiments, each first device (tag) may be configured with a priority, and the priority information may be written into the first device at the factory.

[0167] In some embodiments, the priority of writing to the first device can have multiple levels, for example, four priority levels, namely L1, L2, L3, and L4. It should be noted that the priority level can be indicated by identification information, for example, the highest priority level corresponds to an identifier "L1", or the priority level can be indicated by a specific numerical value, for example, the highest priority level corresponds to a numerical value "1".

[0168] In some embodiments, the reader may be a radio frequency identification (RFID) reader. It should be noted that a reader may also be referred to as a receiver. In the embodiments of the present disclosure, "reader" and "receiver" are interchangeable and are not limited here.

[0169] In some embodiments, the first device receives first information sent by the second device, where the first information is used to indicate a Q value, where the Q value is a positive integer greater than 0. For example, the Q value can be any value between 0 and 15.

[0170] In some embodiments, the first device receives second information sent by the second device, where the second information is used to indicate at least two sets, each set including at least one Q value, where the Q value is a positive integer greater than 0.

[0171] In some embodiments, there is a second mapping relationship between the priority associated with the first device and the set.

[0172] In some embodiments, the first device receives third information sent by the second device, where the third information is used to indicate at least two Q values, where the Q values ​​are inversely correlated with the priorities, and are positive integers greater than 0.

[0173] In some embodiments, there is a third mapping relationship between the priority associated with the first device and the Q value.

[0174] In some embodiments, the first device receives fourth information sent by the second device, where the fourth information is used to indicate at least two Q values, and the Q value is a positive integer greater than 0;

[0175] In some embodiments, the first device receives fifth information sent by the second device, where the fifth information is used to indicate at least two random factors.

[0176] In some embodiments, there is a fourth mapping relationship between the priority associated with the first device and the random factor.

[0177] In some embodiments, the first device receives sixth information sent by the second device, where the sixth information is used to indicate a Q value, and the Q value is a positive integer greater than 0.

[0178] Step S2102: The first device determines a random number based on the priority associated with the first device.

[0179] In some embodiments, a first device receives first information sent by the second device, the first information indicating a Q value, where the Q value is a positive integer greater than 0. The random number is determined from a numerical range determined based on the Q value and N; a first mapping relationship exists between the priority and N, N is determined based on the priority associated with the first device and the first mapping relationship, the random number is inversely correlated with N, and N is a positive integer greater than 0.

[0180] Illustratively, the network, reader, or interrogator issues a command (corresponding to the first information), such as a Query, which includes a Q value, which is used by the tag or ambient IoT device to generate a random number RN16. The tag selects a value of RN16 in the range of 0 to (2Q-1) / N based on the tag's priority.

[0181] For example, see Table 1, which shows a first mapping relationship between priority and N:

[0182] Table 1:

[0183] In some embodiments, a first device receives second information sent by a second device, the second information indicating at least two sets, a second mapping relationship between the priorities and the sets, the sets including at least one Q value, the Q value being a positive integer greater than 0. The random number is determined from a numerical range determined based on the Q value in a first set determined from the at least two sets; the first set is determined based on the priority associated with the first device and the second mapping relationship.

[0184] Exemplarily, the network, reader, or interrogator issues a command, such as a Query, containing a Q-value set containing at least one Q-value. The Q-values ​​in the Q-value set are used by a tag or ambient IoT device to generate a random number, RN16. The tag selects a value for RN16 in the range of 0 to (2Q-1), based on the tag's priority.

[0185] For example, see Table 2, which shows a second mapping relationship between priorities and sets:

[0186] Table 2:

[0187] In some embodiments, the Q value in Q value set 1 may be smaller than the Q value in Q value set 2, the Q value in Q value set 2 may be smaller than the Q value in Q value set 3, and the Q value in Q value set 3 may be smaller than the Q value in Q value set 4.

[0188] In some embodiments, the first device receives third information sent by the second device, the third information indicating at least two Q values, a third mapping relationship between the priorities and the Q values, the Q values ​​being inversely correlated with the priorities, and the Q values ​​being positive integers greater than 0. The random number is determined from a numerical range determined based on the Q values; wherein the Q value is determined based on the priority associated with the first device and the third mapping relationship.

[0189] In some embodiments, the network side, reader or interrogator issues a command, such as Query, which includes at least two Q values, and the Q values ​​are used to generate a random number RN16 for the tag or ambient IOT device.

[0190] For example, see Table 3, which shows a third mapping relationship between priority and Q value:

[0191] Table 3:

[0192] In some embodiments, the first device receives fourth information sent by the second device, the fourth information being used to indicate at least two Q values, and the Q value being a positive integer greater than 0. The first device receives fifth information sent by the second device, the fifth information being used to indicate at least two random factors, and a fourth mapping relationship exists between the priority and the random factor. Randomly generate a second numerical value within a predetermined numerical range; compare the second numerical value with a random factor determined based on the priority associated with the first device; determine that the first numerical value is greater than the random factor and the fourth information indicates a Q value, determine that a value rounded up or down of Q / 2 is the random number, or determine that the first numerical value is greater than the random factor and the fourth information indicates at least two Q values, determine that the minimum value of the at least two Q values ​​is the random number.

[0193] Exemplarily, the network, reader, or interrogator issues a command, such as a Query, containing at least one Q value, which is used by the tag or ambient IoT device to generate a random number RN16. The network also configures a random factor between 0 and 1. At least one random factor can be configured, and each factor is associated with a priority.

[0194] For example, the tag first randomly generates a number between 0 and 1, and then compares it with the random factor corresponding to the priority associated with the tag. If it is greater than the random factor, then:

[0195] If a Q value is configured, the value rounded up or down of Q / 2 is used as the Q value generated by RN16 (random number).

[0196] If at least one Q value is configured, for example, two Q values, the smaller Q value is used for the Q value generated by RN16 (random number).

[0197] In some embodiments, in order to increase the probability of a high-priority tag generating a smaller RN16, the random factor configured for the tag can be smaller (i.e., a high-priority tag is configured with a small random factor, and a low-priority tag is configured with a large random factor), so that the random number between 0 and 1 is easier to meet the requirement of being greater than the random factor, and it is easier to select a smaller Q value to generate RN16 (random number).

[0198] In some embodiments, sixth information sent by the second device is received, the sixth information indicating a Q value, where the Q value is a positive integer greater than 0. The random number is determined based on the Q value, the priority, and seventh information; wherein the seventh information indicates at least one of the following: a battery level of the first device; network coverage; or service urgency.

[0199] In some embodiments, the network, reader, or interrogator issues a command, such as a Query, containing a Q value, which is used by the tag or ambient IoT device to generate a random number, RN16. When generating RN16, the tag needs to consider factors inherent to the tag, such as its power storage capacity, network coverage, and the urgency of the service, to determine whether to generate a larger or smaller RN16.

[0200] In some embodiments, the term "information" can be interchangeable with terms such as "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "field", and "data".

[0201] In some embodiments, the term "send" can be interchanged with terms such as "transmit", "report", and "transmit".

[0202] The communication method involved in the embodiments of the present disclosure may include at least one of steps S2101 and S2102. For example, step S2101 may be implemented as an independent embodiment, and step S2102 may be implemented as an independent embodiment, but the present disclosure is not limited thereto. It should be noted that each step may be implemented independently, or, if not contradictory, in any order or in combination.

[0203] Figure 3a is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in Figure 3a, the embodiment of the present disclosure relates to a communication method, which is executed by a first device and includes:

[0204] Step S3101: Obtain first information.

[0205] 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.

[0206] In some embodiments, the first device receives the first information sent by the access network device, but is not limited thereto and may also receive the first information sent by other entities.

[0207] In some embodiments, the first device obtains first information specified by a protocol.

[0208] In some embodiments, the first device obtains the first information from an upper layer(s).

[0209] In some embodiments, the first device performs processing to obtain the first information.

[0210] In some embodiments, step S3101 is omitted, and the first device autonomously implements the function indicated by the first information, or the above function is default or by default.

[0211] Step S3102: Determine a random number based on the priority associated with the first device.

[0212] The optional implementation of step S3102 can refer to the optional implementation of step S2102 in Figure 2a and other related parts in the embodiment involved in Figure 2a, which will not be repeated here.

[0213] The communication method involved in the embodiments of the present disclosure may include at least one of steps S3101 and S3102. For example, step S3101 may be implemented as an independent embodiment, and step S3102 may be implemented as an independent embodiment, but the present disclosure is not limited thereto. It should be noted that each step may be implemented independently, or, if not contradictory, in any order or in combination.

[0214] FIG3b is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG3b, the embodiment of the present disclosure relates to a communication method, which is executed by a first device and includes:

[0215] Step S3201: Determine a random number based on the priority associated with the first device.

[0216] In some embodiments, the random number is used to trigger the first device to send information to the second device when it changes to a first value based on a first number, where the first number is the number of times the first command is received from the second device.

[0217] 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.

[0218] In some embodiments, the priority information is stored in the first device.

[0219] In some embodiments, the method further comprises:

[0220] receiving first information sent by the second device, where the first information is used to indicate a Q value, where the Q value is a positive integer greater than 0;

[0221] The determining a random number based on the priority associated with the first device includes:

[0222] Determining the random number from a range of values ​​determined based on the Q value and N;

[0223] There is a first mapping relationship between the priority and N, N is determined based on the priority associated with the first device and the first mapping relationship, the random number is inversely correlated with N, and N is a positive integer greater than 0.

[0224] In some embodiments, the method further comprises:

[0225] receiving second information sent by the second device, where the second information is used to indicate at least two sets, a second mapping relationship exists between the priorities and the sets, and the sets include at least one Q value, where the Q value is a positive integer greater than 0;

[0226] The determining a random number based on the priority associated with the first device includes:

[0227] Determining the random number from a range of values ​​determined based on the Q value in the first set determined from the at least two sets;

[0228] The first set is determined based on the priority associated with the first device and the second mapping relationship.

[0229] In some embodiments, the method further comprises:

[0230] receiving third information sent by the second device, where the third information is used to indicate at least two Q values, a third mapping relationship exists between the priorities and the Q values, the Q values ​​are inversely correlated with the priorities, and the Q values ​​are positive integers greater than 0;

[0231] The determining a random number based on the priority associated with the first device includes:

[0232] Determining the random number from a range of values ​​determined based on the Q value;

[0233] The Q value is determined based on the priority associated with the first device and the third mapping relationship.

[0234] In some embodiments, the method further comprises:

[0235] receiving fourth information sent by the second device, where the fourth information is used to indicate at least two Q values, where the Q value is a positive integer greater than 0;

[0236] receiving fifth information sent by the second device, where the fifth information is used to indicate at least two random factors, and a fourth mapping relationship exists between the priorities and the random factors;

[0237] The determining a random number based on the priority associated with the first device includes:

[0238] Randomly generate a second value within a predetermined numerical range; compare the second value with a random factor determined based on the priority associated with the first device; determine that the first value is greater than the random factor and the fourth information indicates a Q value, and determine that a value rounded up or down of Q / 2 is the random number, or, determine that the first value is greater than the random factor and the fourth information indicates at least two Q values, and determine that a minimum value of the at least two Q values ​​is the random number.

[0239] In some embodiments, the method further comprises:

[0240] receiving sixth information sent by the second device, where the sixth information is used to indicate a Q value, where the Q value is a positive integer greater than 0;

[0241] The determining a random number based on the priority associated with the first device includes:

[0242] determining the random number based on the Q value, the priority, and seventh information;

[0243] The seventh information is used to indicate at least one of the following:

[0244] the power level of the first device;

[0245] Network coverage;

[0246] Business urgency.

[0247] In some embodiments, the first device is a tag; the second device is a reader.

[0248] Figure 4a is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in Figure 4a, the embodiment of the present disclosure relates to a communication method, which is executed by a second device, and the method includes:

[0249] Step S4101: Send information to the first device.

[0250] 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.

[0251] Figure 5a is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 5a, the embodiment of the present disclosure relates to a communication method, which is used in a communication system 100. The method includes one of the following steps:

[0252] Step S5101: The second device sends information to the first device.

[0253] In some embodiments, the information may be first information, second information, third information, fourth information, fifth information, and / or sixth information.

[0254] The optional implementation of step S5101 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.

[0255] In some embodiments, the above method may include the methods of the above embodiments on the communication system side, the first device side, the second device side, etc., which will not be repeated here.

[0256] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0257] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0258] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0259] Figure 6a is a schematic diagram of the structure of the first device 6100 proposed in an embodiment of the present disclosure. As shown in Figure 6a, the first device 6100 may include: at least one of a transceiver module 6101, a processing module 6102, etc. In some embodiments, the transceiver module 6101 is used to receive the first information. Optionally, the transceiver module 6101 is used to perform at least one of the communication steps such as sending and / or receiving performed by the first device 6100 in any of the above methods, which will not be repeated here. Optionally, the processing module 6102 is used to perform at least one of the other steps performed by the first device 6100 in any of the above methods, which will not be repeated here.

[0260] Figure 6b is a schematic diagram of the structure of the second device 6200 proposed in an embodiment of the present disclosure. As shown in Figure 6b, the second device 6200 may include: at least one of a transceiver module 6201, a processing module 6202, etc. In some embodiments, the above-mentioned transceiver module 6201 is used to send the first information. Optionally, the above-mentioned transceiver module 6201 is used to perform at least one of the communication steps such as sending and / or receiving performed by the terminal 6200 in any of the above methods, which will not be repeated here. In some embodiments, the transceiver module 6201 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 6201 can be interchangeable with the transceiver. Optionally, the above-mentioned processing module 6202 is used to perform at least one of the other steps performed by the second device 6200 in any of the above methods, which will not be repeated here.

[0261] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0262] Figure 7a is a schematic diagram of the structure of a communication device 8100 proposed in an embodiment of the present disclosure. Communication device 8100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 8100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0263] As shown in Figure 7a, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (such as a base station, baseband chip, terminal device, terminal device chip, DU or CU, etc.), execute programs, and process program data. The communication device 8100 is used to perform any of the above methods.

[0264] In some embodiments, the communication device 8100 further includes one or more memories 8102 for storing instructions. Optionally, all or part of the memories 8102 may be located outside the communication device 8100.

[0265] 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.

[0266] In some embodiments, a transceiver may include a receiver and / or a transmitter. The receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0267] In some embodiments, the communication device 8100 may include one or more interface circuits 8104. Optionally, the interface circuit 8104 is connected to the memory 8102. The interface circuit 8104 may be configured to receive signals from the memory 8102 or other devices, and may be configured to send signals to the memory 8102 or other devices. For example, the interface circuit 8104 may read instructions stored in the memory 8102 and send the instructions to the processor 8101.

[0268] The communication device 8100 described in the above embodiment may be 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. 7a. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data 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, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0269] FIG7 b is a schematic diagram of the structure of the chip 8200 proposed in an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 8200 shown in FIG7 b , but the present disclosure is not limited thereto.

[0270] The chip 8200 includes one or more processors 8201 , and the chip 8200 is configured to execute any of the above methods.

[0271] In some embodiments, the chip 8200 further includes one or more interface circuits 8202. Optionally, the interface circuit 8202 is connected to the memory 8203. The interface circuit 8202 can be used to receive signals from the memory 8203 or other devices, and can be used to send signals to the memory 8203 or other devices. For example, the interface circuit 8202 can read instructions stored in the memory 8203 and send the instructions to the processor 8201.

[0272] 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.

[0273] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0274] In some embodiments, the chip 8200 further includes one or more memories 8203 for storing instructions. Alternatively, all or part of the memories 8203 may be outside the chip 8200.

[0275] The present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto, and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto, and may also be a temporary storage medium.

[0276] The present disclosure also provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0277] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. A communication method, characterized in that: The method is performed by a first device, and includes: determining a random number based on a priority associated with the first device; The random number is used to trigger the first device to send information to the second device when the random number changes to a first value based on a first number, and the first number is the number of times the first command is received from the second device.

2. The method according to claim 1, characterized in that The priority information is stored in the first device.

3. The method according to claim 1, characterized in that The method further comprises: receiving first information sent by the second device, where the first information is used to indicate a Q value, where the Q value is a positive integer greater than 0; The determining a random number based on the priority associated with the first device includes: Determining the random number from a range of values determined based on the Q value and N; There is a first mapping relationship between the priority and N, N is determined based on the priority associated with the first device and the first mapping relationship, and N is a positive integer greater than 0.

4. The method according to claim 1, wherein The method further comprises: receiving second information sent by the second device, where the second information is used to indicate at least two sets, a second mapping relationship exists between the priorities and the sets, and the sets include at least one Q value, where the Q value is a positive integer greater than 0; The determining a random number based on the priority associated with the first device includes: Determine the random number from a range of values determined based on the Q value in the first set determined from the at least two sets; The first set is determined based on the priority associated with the first device and the second mapping relationship.

5. The method according to claim 1, wherein The method further comprises: receiving third information sent by the second device, where the third information is used to indicate at least two Q values, a third mapping relationship exists between the priorities and the Q values, and the Q values are positive integers greater than 0; The determining a random number based on the priority associated with the first device includes: Determining the random number from a range of values determined based on the Q value; The Q value is determined based on the priority associated with the first device and the third mapping relationship.

6. The method according to claim 1, characterized in that The method further comprises: receiving fourth information sent by the second device, where the fourth information is used to indicate at least two Q values, where the Q value is a positive integer greater than 0; receiving fifth information sent by the second device, where the fifth information is used to indicate at least two random factors, and a fourth mapping relationship exists between the priorities and the random factors; The determining a random number based on the priority associated with the first device includes: Randomly generate a second value within a predetermined numerical range; compare the second value with a random factor determined based on the priority associated with the first device; determine that the first value is greater than the random factor and the fourth information indicates a Q value, and determine that a value rounded up or down of Q / 2 is the random number, or, determine that the first value is greater than the random factor and the fourth information indicates at least two Q values, and determine that a minimum value of the at least two Q values is the random number.

7. The method according to claim 1, characterized in that The method further comprises: receiving sixth information sent by the second device, where the sixth information is used to indicate a Q value, where the Q value is a positive integer greater than 0; The determining a random number based on the priority associated with the first device includes: determining the random number based on the Q value, the priority, and seventh information; The seventh information is used to indicate at least one of the following: the power level of the first device; Network coverage; Business urgency.

8. The method according to any one of claims 1 to 7, characterized in that The first device is a tag; the second device is a reader.

9. A terminal, characterized in that: The terminal includes: The processing module is configured to: determining a random number based on a priority associated with the first device; The random number is used to trigger the first device to send information to the second device when the random number changes to a first value based on a first number, and the first number is the number of times the first command is received from the second device.

10. A terminal, characterized in that: The terminal includes: one or more processors; The terminal is configured to execute the communication method according to any one of claims 1 to 8.

11. 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 according to any one of claims 1 to 8.

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