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WO2025231819A1 - Procédé et appareil de détermination de ressources, et premier dispositif et second dispositif - Google Patents

Procédé et appareil de détermination de ressources, et premier dispositif et second dispositif

Info

Publication number
WO2025231819A1
WO2025231819A1 PCT/CN2024/092279 CN2024092279W WO2025231819A1 WO 2025231819 A1 WO2025231819 A1 WO 2025231819A1 CN 2024092279 W CN2024092279 W CN 2024092279W WO 2025231819 A1 WO2025231819 A1 WO 2025231819A1
Authority
WO
WIPO (PCT)
Prior art keywords
information
frequency domain
identification information
domain resource
value
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/092279
Other languages
English (en)
Chinese (zh)
Inventor
赵振山
张世昌
丁伊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
Original Assignee
Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to PCT/CN2024/092279 priority Critical patent/WO2025231819A1/fr
Publication of WO2025231819A1 publication Critical patent/WO2025231819A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

Definitions

  • This application relates to the field of mobile communication technology, specifically to a resource determination method and apparatus, a first device, and a second device.
  • the first devices can use Time Division Multiple Address (TDMA) or Frequency Division Multiple Address (FDMA) to report information.
  • TDMA Time Division Multiple Address
  • FDMA Frequency Division Multiple Address
  • FDMA can support multiple first devices to report information at the same time, with higher transmission efficiency and lower latency.
  • This application provides a resource determination method and apparatus, a first device, and a second device.
  • the resource determination method includes:
  • the first device determines a first frequency domain resource, which is used to send the first identification information of the first device to the second device.
  • the resource determination method includes:
  • the second device receives the first identification information, which is sent by the first device based on the first frequency domain resources.
  • the resource determination apparatus provided in the embodiments of this application is applied to a first device, and the resource determination apparatus includes:
  • the determining unit is configured to determine a first frequency domain resource, which is used to send the first identification information of the first device to the second device.
  • the resource determination apparatus provided in this application embodiment is applied to a second device, and the resource determination apparatus includes:
  • the receiving unit is configured to receive first identification information, which is transmitted by the first device based on the first frequency domain resources.
  • the first device provided in the embodiments of this application includes a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to perform the resource determination method described above.
  • the second device includes a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to perform the resource determination method described above.
  • the chip provided in this application embodiment is used to implement the resource determination method described above.
  • the chip includes a processor for retrieving and running a computer program from memory, causing a device equipped with the chip to perform the resource determination method described above.
  • the computer-readable storage medium provided in this application embodiment is used to store a computer program that causes a computer to execute the resource determination method described above.
  • the computer program product provided in this application includes computer program instructions that cause a computer to execute the resource determination method described above.
  • the computer program provided in this application embodiment when run on a computer, causes the computer to execute the resource determination method described above.
  • This application provides a resource determination method.
  • a first device can determine its own first frequency domain resources. Based on this, multiple first devices can report first identification information at the same time using different frequency domain resources. In this way, interference between multiple first devices during information reporting can be avoided, and transmission efficiency can be improved.
  • Figure 1 is a schematic diagram of an application scenario of an embodiment of this application.
  • FIG. 2 is a schematic diagram of an environmental Internet of Things (IoT) communication system architecture provided in an embodiment of this application;
  • IoT Internet of Things
  • FIG. 3 is a schematic diagram of the structure of a radio frequency energy harvesting module provided in an embodiment of this application;
  • Figure 4 is a schematic diagram of a backscatter communication principle provided in an embodiment of this application.
  • Figure 5 is a schematic diagram of a resistive load modulation principle provided in an embodiment of this application.
  • FIG. 6 is a schematic diagram of an IoT communication system architecture provided in an embodiment of this application.
  • FIG. 7 is a schematic diagram of an IoT communication system architecture provided in an embodiment of this application.
  • Figure 8 is a flowchart illustrating a resource determination method provided in an embodiment of this application.
  • Figure 9 is a schematic diagram of a frequency domain resource range provided in an embodiment of this application.
  • Figure 10 is a schematic diagram of a frequency domain resource range provided in an embodiment of this application.
  • Figure 11 is a schematic diagram of the structure of a second piece of information provided in an embodiment of this application.
  • Figure 12 is a schematic diagram of the structure of a second type of information provided in an embodiment of this application.
  • Figure 13 is a schematic diagram of the structure of a second type of information provided in an embodiment of this application.
  • Figure 14 is a schematic diagram of the structure of a second piece of information provided in an embodiment of this application.
  • Figure 15 is a schematic flowchart of a resource determination method provided in an embodiment of this application.
  • Figure 16 is a schematic diagram of a resource determination scenario provided in an embodiment of this application.
  • Figure 17 is a schematic diagram of the structure of a resource determination device 1700 provided in an embodiment of this application.
  • Figure 18 is a schematic diagram of the structure of a resource determination device 1800 provided in an embodiment of this application.
  • Figure 19 is a schematic structural diagram of a communication device provided in an embodiment of this application.
  • Figure 20 is a schematic structural diagram of a chip according to an embodiment of this application.
  • Figure 21 is a schematic block diagram of a communication system provided in an embodiment of this application.
  • Figure 1 is a schematic diagram of an application scenario of an embodiment of this application.
  • the communication system 100 may include a first device 110 and a second device 120.
  • the second device 120 can communicate with the first device 110 via an air interface. Multi-service transmission is supported between the first device 110 and the second device 120.
  • LTE Long Term Evolution
  • TDD LTE Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • IoT Internet of Things
  • NB-IoT Narrow Band Internet of Things
  • eMTC enhanced Machine-Type Communications
  • 5G communication system also known as New Radio (NR) communication system
  • NR New Radio
  • the second device 120 may be an access network device that communicates with the first device 110.
  • the access network device can provide communication coverage for a specific geographical area and can communicate with the first device 110 (e.g., a user equipment (UE)) located within that coverage area.
  • UE user equipment
  • the second device 120 may be an evolved Node B (eNB or eNodeB) in a Long Term Evolution (LTE) system, a Next Generation Radio Access Network (NG RAN) device, a base station (gNB) in an NR system, a radio controller in a Cloud Radio Access Network (CRAN), or the second device 120 may be a relay station, access point, vehicle-mounted equipment, wearable device, hub, switch, bridge, router, or network equipment in a future evolved Public Land Mobile Network (PLMN), etc.
  • eNB evolved Node B
  • NG RAN Next Generation Radio Access Network
  • gNB base station
  • CRAN Cloud Radio Access Network
  • PLMN Public Land Mobile Network
  • the first device 110 can be any first device, including but not limited to a first device that is connected to the second device 120 or other first devices by wired or wireless means.
  • the first device 110 can refer to an Ambient-Internet of Things (A-IoT) device, access terminal, UE, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device.
  • the access terminal can be a cellular phone, cordless phone, Session Initiation Protocol (SIP) phone, IoT device, satellite handheld terminal, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA), handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, vehicle-mounted device, wearable device, terminal device in a 5G network, or terminal device in a future evolved network, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the first device 110 can be used for device-to-device (D2D) communication.
  • D2D device-to-device
  • the wireless communication system 100 may further include a core network device 130 that communicates with the second device 120.
  • This core network device 130 may be a 5G core network (5G Core, 5GC) device, such as an Access and Mobility Management Function (AMF), an Authentication Server Function (AUSF), a User Plane Function (UPF), or a Session Management Function (SMF).
  • the core network device 130 may also be an Evolved Packet Core (EPC) device for an LTE network, such as a Session Management Function + Core Packet Gateway (SMF+PGW-C) device.
  • EPC Evolved Packet Core
  • SMF+PGW-C Session Management Function + Core Packet Gateway
  • SMF+PGW-C can simultaneously implement the functions of both SMF and PGW-C.
  • the aforementioned core network equipment may also be called by other names, or new network entities may be formed by dividing the functions of the core network. This application does not impose any restrictions on this.
  • the various functional units in the communication system 100 can also communicate with each other through a next-generation (NG) interface.
  • NG next-generation
  • the first device 110 establishes an air interface connection with the access network device through the NR interface for transmitting user plane data and control plane signaling; the first device 110 can establish a control plane signaling connection with the AMF through NG interface 1 (N1); the access network device, such as a next-generation radio access base station (gNB), can establish a user plane data connection with the UPF through NG interface 3 (N3); the access network device can establish a control plane signaling connection with the AMF through NG interface 2 (N2); the UPF can establish a control plane signaling connection with the SMF through NG interface 4 (N4); the UPF can interact with the data network to exchange user plane data through NG interface 6 (N6); the AMF can establish a control plane signaling connection with the SMF through NG interface 11 (N11); and the SMF can establish a control plane signaling connection with the PCF through NG interface 7 (N7).
  • N1 AMF through NG interface 1
  • the access network device such as a next-generation radio access base station (
  • Figure 1 exemplarily illustrates a second device 120, a core network device 130, and two first devices 110.
  • the wireless communication system 100 may include a plurality of second devices 120, and the coverage area of each second device 120 may include other numbers of first devices 110. This application embodiment does not limit this.
  • Figure 1 is merely an example illustrating the system to which this application applies.
  • the method shown in the embodiments of this application can also be applied to other systems.
  • system and “network” are often used interchangeably in this document.
  • the term “and/or” in this document merely describes the relationship between related objects, indicating that three relationships can exist.
  • a and/or B can represent: A existing alone, A and B existing simultaneously, or B existing alone.
  • the character "/" in this document generally indicates that the preceding and following related objects have an "or” relationship.
  • "instruction” mentioned in the embodiments of this application can be a direct instruction, an indirect instruction, or an indication of a related relationship.
  • a instructing B can mean that A directly instructs B, for example, B can be obtained through A; it can also mean that A indirectly instructs B, for example, A instructs C, B can be obtained through C; or it can mean that there is a related relationship between A and B.
  • "correspondence" mentioned in the embodiments of this application can indicate a direct or indirect correspondence between two things, or an related relationship between two things, or a relationship of instruction and being instructed, configuration and being configured, etc.
  • predefined or “predefined rules” mentioned in the embodiments of this application can be implemented by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices), and this application does not limit the specific implementation method.
  • predefined can refer to those defined in a protocol.
  • protocol can refer to standard protocols in the field of communication, such as LTE protocol, NR protocol, and related protocols applied to future communication systems, and this application does not limit this.
  • IoT communication technology which is characterized by low complexity, low cost, and low power consumption, will become a key technology for future communication networks.
  • the A-IoT system can also be referred to as a zero-power system
  • the A-IoT device can also be referred to as a zero-power device.
  • the environmental IoT communication system can be composed of network devices (i.e., the second device 120 mentioned above) and A-IoT devices (i.e., the first device 110 mentioned above).
  • the network devices are used to communicate with the A-IoT devices...
  • the device transmits wireless power signals and/or downlink communication signals, and also receives backscattered signals from A-IoT devices.
  • a basic A-IoT device may include an energy harvesting module, a backscattered communication module, a low-power computing module, and a sensor module.
  • an A-IoT device may also have a memory to store basic information (such as item identification) and sensor data such as ambient temperature and humidity.
  • A-IoT devices refer to IoT devices that use various environmental energy sources, such as radio frequency energy, light energy, solar energy, thermal energy, and mechanical energy, to power themselves. These devices may have no energy storage capacity or very limited energy storage capacity (e.g., using capacitors with a capacitance of tens of microfarads ( ⁇ F)).
  • ⁇ F microfarads
  • the module includes a diode, a capacitor (C), and a resistor ( RL) .
  • the RF energy harvesting module harvests electromagnetic wave energy from space based on the principle of electromagnetic induction, thereby obtaining the energy needed to drive A-IoT devices, such as low-power demodulation and modulation modules, sensors, and memory access. This means that A-IoT devices may not require a traditional battery module.
  • an A-IoT device receives a carrier wave signal from a network device, modulates the carrier wave signal, loads the information to be transmitted, and radiates the modulated signal from the antenna. This information transmission process is called backscatter communication.
  • Load modulation adjusts and controls the circuit parameters of the A-IoT device's oscillation circuit according to the data flow rhythm, thereby changing parameters such as the electronic tag's impedance, thus completing the modulation process.
  • Load modulation techniques can include two methods: resistive load modulation and capacitive load modulation.
  • the load RL can be connected in parallel with a resistor R3 .
  • This resistor R3 can be switched on or off based on the control of the binary data stream. Switching R3 on or off causes a change in the circuit voltage, thus achieving Amplitude Shift Keying (ASK), i.e., signal modulation and transmission are achieved by adjusting the amplitude of the backscattered signal from the A-IoT device.
  • ASK Amplitude Shift Keying
  • FSK Frequency Shift Keying
  • A-IoT devices utilize load modulation to modulate the incoming signal, thereby achieving backscatter communication. Therefore, A-IoT devices have the following significant advantages:
  • A-IoT devices do not need to actively transmit signals and do not require complex radio frequency links, such as power amplifiers (PA) and radio frequency filters;
  • PA power amplifiers
  • radio frequency filters such as radio frequency filters
  • A-IoT devices do not need to actively generate high-frequency signals, therefore they do not need high-frequency crystal oscillators;
  • A-IoT devices do not need to consume the terminal's own energy for signal transmission.
  • Environmental IoT communication has significant advantages such as extremely low cost, zero power consumption, and small size, and can be widely used in various industries, such as logistics, smart warehousing, smart agriculture, energy and power, and industrial internet for vertical industries; it can also be used in personal applications such as smart wearables and smart homes.
  • A-IoT devices can be categorized as follows:
  • A-IoT devices do not require internal batteries.
  • a network node such as a reader in an RFID system
  • the A-IoT device's antenna generates an induced current through electromagnetic induction, which drives the device's low-power chip circuitry.
  • This circuitry demodulates forward link signals (such as downlink signals, i.e., the link signal from the network device to the A-IoT device) and modulates backward link signals (such as uplink signals, i.e., the link signal from the A-IoT device to the network device).
  • forward link signals such as downlink signals, i.e., the link signal from the network device to the A-IoT device
  • backward link signals such as uplink signals, i.e., the link signal from the A-IoT device to the network device.
  • the A-IoT device uses backscattering to transmit signals.
  • Passive A-IoT devices do not require batteries, and their radio frequency and baseband circuits are very simple. For example, they do not require low noise amplifiers (LNAs), power amplifiers (PAs), crystal oscillators, analog-to-digital converters (ADCs), etc. Therefore, they have many advantages such as small size, light weight, very low price, and long service life.
  • LNAs low noise amplifiers
  • PAs power amplifiers
  • ADCs analog-to-digital converters
  • Semi-passive A-IoT devices do not have conventional batteries installed, but they can use energy harvesting modules to collect ambient energy, such as wireless radio frequency energy. Energy can be collected from signals, solar energy, thermal energy, mechanical vibration energy, etc., and stored in an energy storage unit (such as a capacitor). After obtaining energy, the energy storage unit can drive the low-power chip circuitry of the A-IoT device. This enables demodulation of the forward link signal and modulation of the backward link signal. For the backscatter link, the A-IoT device can use either backscattering or active transmission to transmit signals; either method can be used.
  • semi-passive A-IoT devices do not require built-in batteries to drive either the forward or reverse links. Although they use energy stored in capacitors during operation, the energy comes from the ambient energy collected by the energy harvesting module. Therefore, they are also a true A-IoT device.
  • Semi-passive A-IoT devices inherit many advantages from passive A-IoT devices, and therefore have many advantages such as small size, light weight, very low price, and long service life.
  • A-IoT devices used can also be active A-IoT devices. These terminals can have built-in batteries (conventional batteries, such as dry cell batteries or rechargeable lithium batteries). The battery powers the low-power chip circuitry of the A-IoT device, enabling demodulation of forward link signals and modulation of backward link signals.
  • the A-IoT device uses either backscattering or active transmission to transmit signals. Therefore, the zero power consumption of this type of A-IoT device is mainly reflected in the fact that the signal transmission of the backward link does not require the terminal's own power, but instead uses backscattering.
  • A-IoT devices use batteries, they have extremely low power consumption and complexity, thus allowing for smaller capacity batteries, resulting in smaller cost and size.
  • the built-in battery can also serve as an energy storage unit, allowing the energy harvesting module to store collected environmental energy, thereby achieving longer maintenance cycles or even maintenance-free operation.
  • Active A-IoT devices are powered by built-in batteries to increase communication range and improve communication reliability. Therefore, they are used in scenarios with relatively high requirements for communication range and read latency.
  • A-IoT devices such as semi-passive or active A-IoT devices, can have the ability to actively transmit. That is, in addition to communicating through backscattering, the backlink can also communicate through active transmission.
  • A-IoT devices can be categorized as follows:
  • A-IoT devices have a peak power consumption of approximately 1 microwatt ( ⁇ W), energy storage capabilities, an initial sampling frequency offset (SFO) of up to 10 x ppm (parts per million), and neither downlink nor uplink amplifiers. They transmit uplinks by backscattering the carrier wave.
  • ⁇ W microwatt
  • SFO initial sampling frequency offset
  • A-IoT devices have peak power consumption of less than or equal to several hundred ⁇ W, have energy storage capabilities, an initial SFO of up to 10 x ppm, and have downlink amplifiers and/or uplink amplifiers for uplink transmission via backscattering of the carrier.
  • A-IoT devices have peak power consumption of less than or equal to several hundred ⁇ W, have energy storage capabilities, an initial SFO of up to 10 x ppm, and have downlink amplifiers and/or uplink amplifiers. Uplink transmission is generated internally, which can also be called active transmission.
  • A-IoT device types are only provided as examples in this application embodiment.
  • the A-IoT system may include other device types, and this application embodiment does not limit them.
  • IoT 3rd Generation Partnership Project
  • 3GPP 3rd Generation Partnership Project
  • IoT technologies such as NB-IoT, MTC, and RedCap.
  • IoT communication needs in various scenarios that cannot be met using these technologies.
  • scenarios requiring extremely small terminal form factors and extremely low-cost IoT communication cannot be met using these technologies.
  • IoT scenarios may face extreme conditions such as high temperatures, extremely low temperatures, high humidity, high pressure, high radiation, or high-speed movement. Examples include ultra-high-voltage substations, high-speed train track monitoring, environmental monitoring in frigid regions, and industrial production lines. In these scenarios, existing IoT terminals will be unable to function due to the limitations of conventional power supplies. Furthermore, extreme operating environments are also detrimental to IoT maintenance, such as battery replacement.
  • ultra-small terminal forms can be found in scenarios such as food traceability, commodity distribution, and smart wearables. These scenarios require terminals to be extremely small in size for easy use.
  • IoT terminals used for commodity management in the distribution process typically use electronic tags, embedded in very small packages.
  • lightweight wearable devices can improve the user experience while meeting user needs.
  • IoT terminals require IoT terminals to be sufficiently inexpensive to enhance their competitiveness compared to other alternative technologies.
  • IoT terminals can be attached to each... This allows for precise management of the entire logistics process and lifecycle through communication between the terminal and the logistics network. These scenarios require IoT terminals to be sufficiently competitively priced.
  • A-IoT can be used in at least the following four types of scenarios:
  • the Internet of Things (IoT) for the environment can be applied to environmental monitoring scenarios, such as monitoring temperature, humidity, and harmful gases in the workplace and natural environment.
  • the Internet of Things can be applied to smart control scenarios, such as the intelligent control of various appliances in smart homes (turning on and off air conditioners, adjusting temperature), and the intelligent control of various facilities in agricultural greenhouses (automatic irrigation, fertilization).
  • A-IoT devices can directly transmit and receive carrier waves, data, or signals from the base station, and send or backscatter data or channels to the base station.
  • an intermediate node is set up in the low-power IoT to realize communication between A-IoT and the base station.
  • the intermediate node sends data or signals to the A-IoT device, and the A-IoT device sends or backscatters data or signals to the intermediate node.
  • the carrier wave used for backscattering by the A-IoT device can be sent by the intermediate node or by other nodes.
  • the intermediate node can be a terminal device, a base station device, or an Integrated Access and Backhaul (IAB) node.
  • IAB Integrated Access and Backhaul
  • A-IoT devices can communicate directly with the base station or through an intermediate node.
  • A-IoT transmission is based on base station scheduling.
  • the A-IoT device communicates directly with the base station, allowing the base station to directly send scheduling information to the A-IoT device.
  • the A-IoT device communicates with the base station through an intermediate node. The scheduling information sent by the base station is first sent to the intermediate node, which then sends it to the A-IoT device.
  • the base station in the first topology and the intermediate node in the second topology are called readers, and the A-IoT device is called a device. Transmission from a reader to a device is called Reader to Device (R2D) transmission, and transmission from a device to a reader is called Device to Reader (D2R) transmission.
  • R2D Reader to Device
  • D2R Device to Reader
  • A-IoT devices are characterized by extremely low cost, small size, maintenance-free operation, durability, and long lifespan.
  • A-IoT devices are characterized by extremely low cost, small size, maintenance-free operation, durability, and long lifespan.
  • operating costs can be further reduced, the efficiency of logistics and warehousing management can be significantly improved, and the realization of smart logistics and smart warehousing can be facilitated.
  • A-IoT technology can achieve smart warehouse management and improve warehouse efficiency and productivity in the following ways:
  • A-IoT tags support a higher number of simultaneous reads and a wider read/write range.
  • the wireless tags attached to the goods can be read in batches (e.g., thousands of tags per second) to accurately obtain product information such as size/weight, manufacturer, expiration date, serial number, and production line.
  • Wireless tags attached to goods or containers within the warehouse store their basic information and location within the warehouse. By setting up a central network node within the warehouse, all goods can be identified quickly and promptly, allowing managers to understand inventory distribution and total volume in a timely manner and to quickly predict storage needs.
  • A-IoT devices can report information using TDMA or FDMA. Compared to TDMA, FDMA can support multiple devices simultaneously. The device reports information with higher transmission efficiency and lower latency.
  • the reader sends trigger commands, query commands, or paging commands via broadcast or multicast. In response to these commands, the A-IoT devices perform the information reporting process.
  • the environmental IoT system supports FDMA, how the A-IoT devices determine the corresponding frequency domain resources is a problem that needs to be solved.
  • a first device can determine its own first frequency domain resources. Based on this, multiple first devices can report first identification information at the same time using different frequency domain resources. In this way, interference between multiple first devices during information reporting can be avoided and transmission efficiency can be improved.
  • Figure 8 illustrates a resource determination method provided in an embodiment of this application, which may include:
  • the first device determines the first frequency domain resource, which is used to send the first identification information of the first device to the second device.
  • the first device upon receiving first information sent by the second device, determines a first frequency domain resource and sends the first identification information of the first device to the second device on the first frequency domain resource.
  • the first device upon receiving first information from the second device, determines a first frequency domain resource. When the value of a counter associated with the first device satisfies a preset condition, the first device sends its first identification information to the second device on the first frequency domain resource. In some embodiments, this preset condition is that the counter value is zero.
  • the first information can be a trigger signaling, paging signaling, or query signaling sent by the second device in a broadcast or multicast manner.
  • the first device receives the trigger signaling, paging signaling, or query signaling, it determines the first frequency domain resource and sends the first identification information to the second device on the first frequency domain resource.
  • the first information is used to trigger or instruct the first device to send its first identification information, or the first information is used to indicate the start of an inventory round.
  • the first identification information may be N bits of information randomly generated by the first device. If N is 16, then the first identification information is 16-bit random or pseudo-random number (RN16) information. It should be understood that RN16 is only one implementation of the first identification information, and this application embodiment does not limit it.
  • the first identification information may be determined based on the device identifier of the first device.
  • the first identification information may include all or part of the device identifier of the first device, or the first identification information may be obtained by calculation from the device identifier of the first device.
  • the resource determination method provided in this application can be applied to various communication scenarios, such as cellular communication scenarios, WiFi communication scenarios, and environmental IoT systems. This application embodiment does not limit this.
  • the first device can determine its own first frequency domain resources. Based on this, multiple first devices can report first identification information at the same time using different frequency domain resources. In this way, interference between multiple first devices during information reporting can be avoided, and transmission efficiency can be improved.
  • the first device mentioned in this application can be a terminal with low power consumption, low complexity, and low cost.
  • a low power consumption, low complexity, and low cost first device can be an A-IoT device (e.g., an IoT terminal based on ambient power (AMP)), or it can be a low power terminal, a low cost terminal, a low-capacity terminal (e.g., a Redcap UE), etc., and this application does not limit it.
  • A-IoT device e.g., an IoT terminal based on ambient power (AMP)
  • AMP ambient power
  • a low-capacity terminal e.g., a Redcap UE
  • A-IoT devices can include first devices based on ambient energy, namely AMP IoT terminals.
  • Ambient energy can include wireless radio frequency energy, solar energy, thermal energy, mechanical energy, kinetic energy, etc.
  • A-IoT devices can also be called energy harvesting devices, which can obtain the energy required for communication and can support backscatter communication and/or active transmission communication.
  • the first device when it determines the first frequency domain resource, it may do so based on one or more of the following:
  • the identification information associated with the first device is
  • Equipment type information for the first device
  • the identification information associated with the second device is
  • the identification information associated with the first device may include the Electronic Product Code (EPC) information of the first device, and/or the N-bit information randomly generated by the first device, such as RN16 information. This application embodiment does not limit this.
  • EPC Electronic Product Code
  • the identification information associated with the first device may also include other identification information, such as group identification information associated with the first device, service type identification information, etc.
  • the first device determines the corresponding first frequency domain resource based on the associated identification information.
  • Different identification information can be associated with different first frequency domain resources.
  • the association between the identification information and the first frequency domain resource can be predefined, configured by the network, or the resource index corresponding to the first frequency domain resource can be obtained by calculating the identification information. This embodiment does not impose any limitations on this. Therefore, when there are multiple first devices, different first devices can select different first frequency domain resources based on different associated identification information, thereby avoiding interference between different first devices.
  • the device type information of the first device can be one of the first device type, second device type or third device type mentioned above.
  • the device type information can also be other device types besides the three device types mentioned above, and the embodiments of this application do not limit this.
  • the first device determines the corresponding first frequency domain resource based on the associated device type information.
  • Different device type information can be associated with different first frequency domain resources. It should be noted that the association between device type information and the first frequency domain resource can be predefined or configured by the network; this embodiment does not impose any limitations on this. Therefore, when there are multiple first devices, first devices of different device types can select the first frequency domain resource corresponding to their own device type, thereby reducing interference between first devices of different device types.
  • the identification information associated with the second device may include the Electronic Product Code (EPC) information of the second device, and/or N-bit information randomly generated by the second device, such as RN16 information. This application embodiment does not limit this.
  • EPC Electronic Product Code
  • the identification information associated with the second device can be determined based on cell ID information. For example, if the second device is a base station, then the identification information associated with the second device is the cell ID corresponding to the base station, as shown in Figure 6.
  • the identification information associated with the second device can be determined based on the terminal identifier (UE ID) information, such as the Radio Network Temporary Identity (RNTI). For example, if the second device is an intermediate node and the second device is a terminal, then the identification information associated with the second device is the terminal identifier corresponding to the terminal, as shown in Figure 7.
  • UE ID terminal identifier
  • RNTI Radio Network Temporary Identity
  • the first device determines the corresponding first frequency domain resource based on the identification information associated with the second device. Based on this, when there are multiple second devices, when the second device sends first information to the first device, the first information may carry the identification information associated with the second device. Alternatively, the second device may send indication information to the first device, which includes the identification information associated with the second device. Thus, when the first device determines the corresponding first frequency domain resource, it can do so based on the identification information associated with the second device. This allows the first device to select different first frequency domain resources for transmission when sending first identification information to different second devices, avoiding mutual interference.
  • the available frequency domain resource information includes the first frequency domain resource range of the first device and the second device in the first network, and/or the second frequency domain resource range associated with the device type information of the first device.
  • the first frequency domain resource range refers to the frequency domain resource range available in the first network
  • the second frequency domain resource range may refer to the frequency domain resource range allocated or configured for the device type information of the first device.
  • the first frequency domain resource range may include the second frequency domain resource range, or the first frequency domain resource range and the second frequency domain resource range may partially overlap, or the first frequency domain resource range and the second frequency domain resource range may be different. This application embodiment does not impose any restrictions on this.
  • the first device determines the corresponding first frequency domain resource based on the available frequency domain resource information. For example, within the frequency domain resource range of the available frequency domain resource information, the first device may determine the corresponding first frequency domain resource based on one or more of the identification information associated with the first device, the device type information of the first device, and the identification information associated with the second device.
  • the first frequency domain resource range is located in the first frequency band or the first carrier; or...
  • the first frequency domain resource range is located within the guard band of the first frequency band; or,
  • the first frequency domain resource range is located in the second frequency band or the second carrier
  • the first frequency band is the frequency band used by the NR or LTE system
  • the first carrier is the carrier used by the NR or LTE system
  • the second frequency band is a different frequency band from the first frequency band
  • the second carrier is a different carrier from the first carrier.
  • the first network can use the same first frequency band or first carrier as the NR or LTE system, or the first network can use an independent second frequency band or second carrier, or the first network can use the guard band of the first frequency band where the NR or LTE system operates, or...
  • the first frequency domain resource range can be determined based on one or more of the protocol predefined information, preconfiguration information, and network configuration information, and the embodiments of this application do not limit this.
  • the first network can usually support multiple device types, and different device types have different transmission methods.
  • the first and second device types mentioned above use backscattering for transmission, while the third device type uses active transmission. Since different device types can correspond to different frequency domain resource ranges, for the first device, the corresponding first frequency domain resource can be determined within the second frequency domain resource range corresponding to its device type.
  • corresponding frequency domain resource ranges are configured for the first device type, the second device type, and the third device type, respectively.
  • the frequency domain resource ranges corresponding to different device types may include guard bands. If the first device belongs to the first device type, the corresponding first frequency domain resource of the first device can be determined from the frequency domain resource range configured for the first device type in Figures 9 and 10. If the first device belongs to the second device type, the corresponding first frequency domain resource of the first device can be determined from the frequency domain resource range configured for the second device type in Figures 9 and 10. If the first device belongs to the third device type, the corresponding first frequency domain resource of the first device can be determined from the frequency domain resource range configured for the third device type in Figures 9 and 10.
  • the first identification information is the information to be transmitted from the first device to the second device.
  • the corresponding first frequency domain resources of the first device can be determined by the transmission parameters corresponding to the first identification information.
  • the transmission parameters include, but are not limited to, one or more of the following: the number of bits of the first identification information, the transmission block size of the first identification information, the code rate of the first identification information, and the transmission rate of the first identification information. This application embodiment does not limit this.
  • the code rate of the first identification information is the code rate associated with the first identification information, that is, the code rate corresponding to the encoding or linear coding processing of the first identification information.
  • the linear code can include one or more of the following: Manchester coding, Miller coding, Bi-Phase Space Coding, and Pulse Interval Encoding (PIE).
  • Bi-Phase Space Coding is also known as FM0 coding.
  • the transmission rate of the first identification information is the transmission rate associated with the first identification information, that is, the transmission rate corresponding to the transmission of the first identification information.
  • the first device first determines the number of frequency domain resources required to transmit the first identification information based on one or more of the following: the number of bits in the first identification information, the transport block size of the first identification information, the code rate of the first identification information, and the transmission rate of the first identification information.
  • the available frequency domain resources include 20 Physical Resource Blocks (PRBs). If the first device determines that 2 PRBs are needed to transmit the first identification information based on one or more of the following, then the 20 PRBs are divided into 10 candidate frequency domain resources, i.e., every 2 PRBs constitute one candidate frequency domain resource. Simultaneously, the index value corresponding to each of the 10 candidate frequency domain resources can be determined.
  • PRBs Physical Resource Blocks
  • the range of the index values corresponding to the 10 candidate frequency domain resources can be set to [0, 9].
  • the index value is...
  • Candidate frequency domain resources with an index value of 0 include the first and second PRBs out of 20 PRBs; candidate frequency domain resources with an index value of 1 include the third and fourth PRBs out of 20 PRBs, and so on.
  • the first device determines that transmitting the first identification information requires 4 PRBs, then the 20 PRBs are divided into 5 candidate frequency domain resources based on the 4 PRBs, that is, every 4 PRBs constitute one candidate frequency domain resource.
  • the index values corresponding to each of the 5 candidate frequency domain resources can be determined.
  • the range of index values corresponding to the 5 candidate frequency domain resources can be set to [0, 4].
  • candidate frequency domain resources with an index value of 0 include the first, second, third, and fourth PRBs out of 20 PRBs;
  • candidate frequency domain resources with an index value of 1 include the fifth, sixth, seventh, and eighth PRBs out of 20 PRBs, and so on.
  • the first device can select the first frequency domain resource from the candidate frequency domain resources.
  • the PRB included in the available frequency domain resource information cannot be divided by the number of frequency domain resources required by the first device, some frequency domain resources in the available frequency domain resource information can be discarded, such as discarding the part of the frequency domain resources with the highest or lowest frequency domain position in the available frequency domain resource information. This application embodiment does not limit this.
  • the first device when the first device selects the first frequency domain resource from the candidate frequency domain resources, it can randomly select the first frequency domain resource or select the first frequency domain resource from the candidate frequency domain resources according to a determined index value.
  • the first device randomly selects a first frequency domain resource from the candidate frequency domain resources.
  • the candidate frequency domain resources are determined based on the available frequency domain resource information. If there are D candidate frequency domain resources, where D is an integer greater than or equal to 1, the first device can randomly select one frequency domain resource from the D candidate frequency domain resources as the first frequency domain resource.
  • the first device randomly selects one frequency domain resource from the 8 candidate frequency domain resources as the first frequency domain resource.
  • the available frequency domain resource information is a second frequency domain resource range, that is, the frequency domain resource range corresponding to the device type information of the first device, and it is determined that the second frequency domain resource range includes four candidate frequency domain resources, then the first device selects from the four candidate frequency domain resources.
  • One frequency domain resource is randomly selected from the domain resources as the first frequency domain resource.
  • the first device selects a first frequency domain resource from the candidate frequency domain resources based on a determined index value.
  • the first device can first determine the first index value based on one or more of the identification information associated with the first device, the device type information of the first device, the identification information associated with the second device, and the first parameter, and then select the first frequency domain resource from the candidate frequency domain resources based on the first index value.
  • the first device determines the first index value based on the identification information associated with the first device.
  • the first device randomly generates RN16 information, it determines the decimal value corresponding to the RN16 information, and then determines the first index value based on the decimal value.
  • the first device determines the first index value based on A bits in the EPC information of the first device. That is, if the EPC information of the first device includes B bits, where A is less than or equal to B, or A is equal to B, or A is less than B, the A bits can be the leftmost (most significant) or rightmost (least significant) bits in the EPC. Then, the decimal value corresponding to the A bits is determined, and the first index value is determined based on the decimal value.
  • the first device determines a first index value based on the identification information associated with the first device and the identification information associated with the second device.
  • a final bit sequence can be determined based on all or part of the bits in the RN16 information or EPC information and all or part of the bits in the C bits.
  • the decimal value corresponding to the final bit sequence is determined, and then the first index value is determined based on the decimal value.
  • N represents the decimal value determined according to the above method
  • M represents the number of candidate frequency domain resources mentioned above
  • mod represents the modulo operation
  • the first parameter is determined based on the first information sent by the second device; the first information is used to trigger or instruct the first device to send the first identification information of the first device.
  • the first information sent by the second device to the first device carries the first parameter, or the first device determines the first parameter based on the first information. This application embodiment does not limit this.
  • the first device when the first device receives the first information sent by the second device, it first determines the first parameter based on the first information, then determines the corresponding first frequency domain resource based on the first parameter, and finally sends the first identification information to the second device on the first frequency domain resource.
  • the first device determines the first index value based on the first parameter.
  • the first device determines the value of the counter of the first device based on the first parameter.
  • the first device first determines the integer q based on the first parameter (denoted as Q), and then sets the value of the counter based on the integer q.
  • This value can be the initial value of the counter, and this application embodiment does not limit this.
  • the first device after determining the value of the counter of the first device, the first device needs to determine the first index value based on the value of the counter.
  • q represents a parameter randomly generated based on the first parameter
  • M represents the number of candidate frequency domain resources
  • mod represents the modulo operation
  • the first device upon receiving third information from the second device, the first device adjusts the value of its counter until the counter value meets a preset condition, and then determines the first frequency domain resource based on the current value of the counter, or randomly selects the first frequency domain resource; wherein the third information is used by the first device to adjust the value of its counter.
  • the third piece of information can be a query repeat (e.g., QueryRep) signaling.
  • the first device adjusts the value of the counter once every time it receives a query repeat signaling sent by the second device.
  • the adjustment step size by which the first device adjusts the value of the counter is related to the number of candidate frequency domain resources.
  • the first device upon receiving a repeated query signaling, reduces the value of the counter by the number of candidate frequency domain resources M until the value of the counter meets a preset condition.
  • the current value of the counter is determined, and a first index value is determined based on the current value. For example, the current value is used as the first index value, and then the frequency domain resources corresponding to the first index value in the candidate frequency domain resources are selected.
  • the resource may be determined as the first frequency domain resource, or the first frequency domain resource may be randomly selected from the candidate frequency domain resources. This application does not limit this in its embodiments.
  • the first device when the value of the counter of the first device meets the preset conditions, the first device sends the first identification information of the first device to the second device based on the first frequency domain resources.
  • the preset conditions include at least one of the following:
  • the counter value of the first device is equal to zero
  • the value of the counter in the first device is less than a first value; wherein the first value is determined based on the number of candidate frequency domain resources.
  • the first value is determined based on protocol predefined information, preconfiguration information, network configuration information, or indication information sent by the reader.
  • the first device when the first device receives a repeated query signaling, it decrements the value of the counter by 1. When the value of the counter is equal to zero, the first device sends the first identification information of the first device to the second device on the first frequency domain resource according to the determined first frequency domain resource.
  • the first device when it receives a repeated query signaling, it decrements the value of the counter by M. If the value of the counter is less than a first value (e.g., the first value is equal to M), the first device uses the current value of the counter as the first index value, determines the frequency domain resource corresponding to the first index value as the first frequency domain resource, and sends the first identification information of the first device to the second device on the first frequency domain resource.
  • a first value e.g., the first value is equal to M
  • the first device upon receiving the third information sent by the second device, the first device will not adjust the value of the counter of the first device.
  • the value of the counter in the first device is less than the first value, the value of the counter can be the initial value or the value after multiple adjustments. In this case, the first device will no longer adjust the value of the counter after receiving the third information.
  • the number of candidate frequency domain resources M is 4, indicating that there are 4 available frequency domain resources at the same time.
  • the first value is equal to M, that is, the first value is 4.
  • the second device sends the first information (e.g., a query command) to the first device.
  • the first information carries the first parameter Q, which is 3.
  • the first device receives the third information (e.g., a query repeat signaling), it reduces the initial value of the counter by 4. At this time, the value of the counter is 1, which is less than the first value. Therefore, the first device uses the current value of the counter, 1, as the index value and determines the frequency domain resource with the index value of 1 in the candidate frequency domain resources
  • the first frequency domain resource is related to a reference location; the reference location is determined based on one or more of the following:
  • the center frequency or frequency domain start position corresponding to the frequency band or carrier used by the first network where the second device is located;
  • the location of the first frequency domain resource can be determined relative to the reference location.
  • an index value can be pre-configured for the reference location. After the first device determines the first index value based on the above, it can quickly determine the first frequency domain resource based on the index value of the reference location and the first index value.
  • the first device determines the first frequency domain resource and sends the first identification information to the second device on the first frequency domain resource, it further includes: if it receives the second information sent by the second device, the first device sends the second identification information of the first device on the second frequency domain resource; wherein the second information is associated with the first identification information, and the second frequency domain resource is associated with the first frequency domain resource.
  • the first device needs to determine the second frequency domain resource and then send the second identification information of the first device to the second device on the second frequency domain resource.
  • the second identification information can be the device identification information of the first device, which may include Protocol Control (PC) information and/or EPC information. This application embodiment does not limit this.
  • PC Protocol Control
  • the first device first confirms whether the communication between it and the second device is normal based on the first identification information, that is, whether the second device can receive the information from the first device, and then sends its own device identification information to the second device, which can improve the efficiency of data transmission.
  • the first frequency domain resource is the same as the second frequency domain resource, or the second frequency domain resource is based on the first frequency domain resource. Determined by the frequency domain offset value.
  • the first device can determine the second frequency domain resource based on the first frequency domain resource.
  • the first frequency domain resource and the second frequency domain resource are the same frequency domain resource, or the second frequency domain resource has a frequency domain offset value relative to the first frequency domain resource.
  • the frequency domain offset value is determined based on one or more of the following:
  • the instruction information for the second device is determined
  • the first device is determined autonomously.
  • first frequency domain resources used by the first device when sending the first identification information are different from the second frequency domain resources used when sending the second identification information, thereby achieving frequency diversity and improving transmission reliability.
  • the first device can also determine the second frequency domain resource again based on the method for determining the first frequency domain resource described above. Since the method for determining the first frequency domain resource has been described in detail above, it will not be repeated here.
  • the above embodiment describes a method for a first device to determine a first frequency domain resource, thereby enabling the transmission of first identification information via FDMA. Due to the support for FDMA transmission, different first devices may send their own first identification information to a second device on different frequency domain resources. The second device performs detection on multiple frequency domain resources, and may detect all, some, or no first identification information. If the second device detects the first identification information, it sends second information, which includes all the first identification information detected by the first device. The method for the second device to send the second information is described below.
  • the first device receives second information; the second information is sent by the second device after receiving the first identification information; the second information includes at least:
  • the first information field is used to indicate that the second information is confirmation information; the second information field includes the first identification information.
  • the second information is sent by the second device via multicast/broadcast.
  • the first device which has not successfully sent the first identification information to the second device or has not sent the first identification information, can also receive the second information.
  • the first device can determine whether the first identification information it sent to the second device was successfully sent based on the second information.
  • the first information field includes at least one of the following:
  • the ACK is used to indicate that the second information is acknowledgment information; or, if the first information field includes a first bit sequence, the first bit sequence is used to indicate that the second information is acknowledgment information; or, if the first information field includes code information, the code information is used to indicate that the second information is acknowledgment information.
  • ACK acknowledgment character
  • code information is used to indicate that the second information is acknowledgment information.
  • the second information field includes K sub-information fields, and the K sub-information fields carry one or more first identification information; the one or more first identification information are all the first identification information sent by at least one first device received by the second device, where K is an integer greater than or equal to 1.
  • the second information field includes all the first identification information detected by the second device.
  • the value of K is determined based on the amount of information of one or more first identification information or based on the amount of candidate frequency domain resources.
  • the number of sub-information fields in the second information field is determined based on the number of information fields in one or more first identification information fields.
  • the second information field includes S sub-information fields; for example, if S represents the number of pieces of information of one or more first identification information detected by the second device, then the length of the second information field is determined based on S and W, that is, the length of the second information field is equal to S ⁇ W, where W represents the number of bits corresponding to the first identification information.
  • the number of sub-information domains in the second information domain is determined based on the number of candidate frequency domain resources.
  • the second information domain includes M sub-information domains, each sub-information domain corresponding to one of the M candidate frequency domain resources; or, for example, if the number of candidate frequency domain resources is M, then the second...
  • the length of the information field is determined based on M and W. For example, the length of the second information field is equal to M ⁇ W, where W represents the number of bits corresponding to the first identification information.
  • the number of candidate frequency domain resources M is 4, meaning the number of available frequency domain resources at any given time is 4, at a certain moment, three first devices simultaneously send first identification information to a second device.
  • the indices of the frequency domain resources used by these three first devices are index 0, index 1, and index 3, respectively, and the first device identifiers they send correspond to RN16_1, RN16_2, and RN16_3, respectively.
  • the second device detects RN16_1 and RN16_3, and then sends second information.
  • This second information may include the following information fields:
  • the second information includes a first information field, which in Figures 11 and 12 represents encoded information used to indicate that the second information is confirmation information.
  • the first information field includes a bit sequence "01,” which indicates that the second information is confirmation information.
  • N/A indicates that the information in this field is undefined, determined based on special bits or padding bits, or is an invalid bit.
  • the second information field includes four sub-information fields, the number of which is the same as the number of candidate frequency domain resources. In Figure 11, the order of the sub-information fields corresponds to the frequency domain resources.
  • the source indexes have a correspondence, that is, the sub-information fields correspond to the four candidate frequency domain resource indices from low to high order from left to right (or from right to left).
  • the first identification information is carried in the corresponding sub-information field of the second information field when the second device detects the first identification information on the frequency domain resource index.
  • the second device detects RN16_1 and RN16_3 at frequency domain resource indices index 0 and index 3, respectively. Therefore, RN16_1 and RN16_3 are carried in the first and fourth sub-information fields of the second information field, and invalid bits are carried in the second and third sub-information fields of the second information field.
  • the order of the sub-information fields does not correspond to the frequency domain resource index.
  • the second device sequentially carries the detected first identification information in the corresponding sub-information fields of the second information field.
  • the second device detects RN16_1 and RN16_3 at frequency domain resource indices 0 and 3, respectively. Therefore, RN16_1 and RN16_3 are carried in the first two sub-information fields of the second information field, and invalid bits are carried in the last two sub-information fields.
  • the bit length of the second information can be determined based on the number of bits in the first identification information and the number of candidate frequency domain resources, without the need for additional signaling to indicate the bit length information.
  • the structure of the second information can be referred to Figures 13 and 14, wherein the first information field includes a first information field used to indicate that the second information is confirmation information.
  • the first information field includes a bit sequence "01", which is used to indicate that the second information is confirmation information.
  • the number of sub-information fields included in the second information field is determined based on the number of first identification information detected by the second device. Since the second device detects RN16_1 and RN16_3 at frequency domain resource indices index 0 and index 3 respectively, the second information field includes two sub-information fields, which carry RN16_1 and RN16_3 respectively.
  • the preamble includes indication information to indicate that the confirmation information includes two first identifiers.
  • the first device can determine whether its own first identification information has been successfully sent to the second device by searching for all the first identification information contained in the second information. If the sending is successful, the first device can send its own second identification information to the second device.
  • the first device can determine its own first frequency domain resources. Based on this, multiple first devices can report first identification information at the same time using different frequency domain resources. In this way, interference between multiple first devices during information reporting can be avoided, and transmission efficiency can be improved.
  • the resource determination method of the present invention has been described in detail above from the perspective of the first device with reference to Figure 8.
  • the resource determination method of the present invention has been described in detail below from the perspective of the second device with reference to Figure 15. It should be understood that the steps performed by the second device correspond to the steps performed by the first device. For the sake of brevity, repeated descriptions will be appropriately omitted below.
  • Figure 15 illustrates a resource determination method provided in an embodiment of this application, which may include:
  • the second device receives the first identification information, which is sent by the first device based on the first frequency domain resources.
  • the first device upon receiving first information sent by the second device, determines a first frequency domain resource and sends the first identification information of the first device to the second device on the first frequency domain resource.
  • the second device can be a node that communicates with the first device.
  • the second device can be an AP in a WiFi system or a base station in a cellular system, or it can be an IoT node, sensor, or other device in A-IoT. This application embodiment does not limit this.
  • the second device may include an ambient energy generator (AMP Energizer).
  • AMP Energizer an ambient energy generator
  • the method before the second device receives the first identification information, the method further includes: the second device broadcasting/multicasting the first information; One piece of information is used to trigger the first device to send the first identification information to the second device.
  • the first information can be a trigger signaling or query signaling sent by the second device in a broadcast or multicast manner.
  • the first device receives the trigger signaling or query signaling, it determines the first frequency domain resource and sends the first identification information to the second device on the first frequency domain resource.
  • the method further includes: the second device broadcasting/multicasting second information, which is used to trigger the first device to send the second identification information to the second device; the second information includes at least:
  • the first information field is used to indicate that the second information is confirmation information; the second information field is used to indicate whether the first identification information of the first device was successfully sent.
  • the second device receives multiple first identification information sent by one or more first devices on different frequency domain resources. Then, the second device generates second information based on the multiple first identification information and broadcasts/multicasts the second information to inform one or more first devices whether the first device's first identification information has been successfully sent, and triggers the first device to send its own second identification information to the second device.
  • the second device after the second device broadcasts/multicasts the second information, it further includes: the second device receiving second identification information, which is sent by the first device based on the second frequency domain resources.
  • the first device is an A-IoT terminal
  • the second device is a reader.
  • the specific steps include S300 to S303:
  • the second device sends the first information via broadcast/multicast.
  • the reader sends trigger signaling or query signaling (first information) via broadcast/multicast.
  • the first device determines the first frequency domain resource and sends the first identification information to the second device using the first frequency domain resource.
  • the A-IoT terminal determines the corresponding first frequency domain resource and sends first identification information to the reader on the first frequency domain resource.
  • the first identification may be, for example, N bits of information randomly generated by the first device, such as RN16.
  • the second device receives the first identification information and sends the second information to the first device.
  • the reader after receiving the first identification information, the reader sends the second information via broadcast/multicast, which includes ACK information associated with RN16.
  • the first device determines the second frequency domain resource and sends the second identification information to the second device using the second frequency domain resource.
  • the A-IoT terminal can determine the second frequency domain resource and then send the second identification information to the reader on the second frequency domain resource.
  • the second identification information includes device identification information.
  • the reader can obtain the device identification information of one or more first devices, and issue control commands or instruction information to the corresponding first devices according to different device identification information.
  • the sequence number of each process does not imply the order of execution.
  • the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.
  • the terms “downlink,””uplink,” and “sidelink” are used to indicate the transmission direction of signals or data. “Downlink” indicates that the transmission direction of signals or data is a first direction from the site to the user equipment in the cell; “uplink” indicates that the transmission direction of signals or data is a second direction from the user equipment in the cell to the site; and “sidelink” indicates that the transmission direction of signals or data is a third direction from user equipment 1 to user equipment 2.
  • downlink signal means that the signal...
  • the transmission direction is the first direction.
  • the term “and/or” merely describes the relationship between associated objects, indicating that three relationships can exist.
  • a and/or B can represent: A existing alone, A and B existing simultaneously, or B existing alone.
  • the character "/" in this document generally indicates that the preceding and following associated objects have an "or" relationship.
  • Figure 17 is a schematic diagram of the structure of the resource determination device 1700 provided in an embodiment of this application, applied to a first device. As shown in Figure 17, the resource determination device 1700 includes:
  • the determining unit 1701 is configured to determine a first frequency domain resource, which is used to send the first identification information of the first device to the second device.
  • the first frequency domain resource is determined based on one or more of the following:
  • the identification information associated with the first device is
  • the identification information associated with the second device is
  • the available frequency domain resource information includes a first frequency domain resource range of the first network in which the first device and the second device are located, and/or a second frequency domain resource range associated with the device type information of the first device.
  • the first frequency domain resource range is located in a first frequency band or a first carrier; or...
  • the first frequency domain resource range is located within the guard band of the first frequency band; or,
  • the first frequency domain resource range is located in the second frequency band or the second carrier
  • the first frequency band is a frequency band used by the Radio Access Network (NR) system or the Long Term Evolution (LTE) system
  • the first carrier is a carrier used by the NR system or the LTE system
  • the second frequency band is a different frequency band from the first frequency band
  • the second carrier is a different carrier from the first carrier.
  • the first parameter is determined based on first information sent by the second device; the first information is used to trigger the first device to send the first identification information of the first device.
  • the resource determination apparatus 1700 may further include a transmitting unit configured to transmit the second identification information of the first device in a second frequency domain resource if it receives the second information transmitted by the second device; wherein the second information is associated with the first identification information, and the second frequency domain resource is associated with the first frequency domain resource.
  • the first frequency domain resource is the same as the second frequency domain resource, or the second frequency domain resource is determined based on the first frequency domain resource and the frequency domain offset value.
  • the frequency domain offset value is determined based on one or more of the following:
  • the instruction information of the second device is determined
  • the first device determines this autonomously.
  • the first frequency domain resource is associated with a reference location; the reference location is determined based on one or more of the following:
  • the center frequency point or frequency domain start position corresponding to the frequency band or carrier used by the first network where the second device is located;
  • the determining unit 1701 may also be configured to determine the value of the counter of the first device based on the first parameter.
  • the resource determination apparatus 1700 may further include an adjustment unit, which may be configured to adjust the resource determination unit in each connection.
  • an adjustment unit which may be configured to adjust the resource determination unit in each connection.
  • the preset conditions include at least one of the following:
  • the counter value of the first device is equal to zero
  • the value of the counter in the first device is less than a first value; wherein the first value is determined based on the number of candidate frequency domain resources.
  • the first information field is used to indicate that the second information is confirmation information; the second information field includes the first identification information.
  • the first information field includes at least one of the following:
  • the second information field includes K sub-information fields, each of which carries one or more first identification information; the one or more first identification information is all first identification information sent by at least one first device and received by the second device, where K is an integer greater than or equal to 1.
  • the value of K is determined based on the amount of information in the one or more first identification information or based on the amount of candidate frequency domain resources.
  • Figure 18 is a schematic diagram of the structure of a resource determination device 1800 provided in an embodiment of this application, applied to a second device. As shown in Figure 18, the resource determination device 1800 includes:
  • the receiving unit 1801 is configured to receive first identification information, which is transmitted by the first device based on the first frequency domain resources.
  • the resource determination device 1800 may further include a sending unit, which may be configured to broadcast/multicast first information; the first information is used to trigger the first device to send the first identification information to the second device.
  • a sending unit which may be configured to broadcast/multicast first information; the first information is used to trigger the first device to send the first identification information to the second device.
  • the receiving unit 1801 may also be configured to receive second identification information, which is transmitted by the first device based on the second frequency domain resources.
  • the sending unit may also be configured to broadcast/multicast second information, the second information being used to trigger the first device to send the second identification information to the second device; the second information includes at least:
  • the first information field is used to indicate that the second information is confirmation information; the second information field is used to indicate whether the first identification information of the first device was successfully sent.
  • Figure 19 is a schematic structural diagram of a communication device provided in an embodiment of this application.
  • This communication device can be a first device or a second device.
  • the communication device 1900 shown in Figure 19 includes a processor 1910, which can call and run computer programs from memory to implement the methods in the embodiments of this application.
  • the communication device 1900 may further include a memory 1920.
  • the processor 1910 may retrieve and run computer programs from the memory 1920 to implement the methods in the embodiments of this application.
  • the memory 1920 can be a separate device independent of the processor 1910, or it can be integrated into the processor 1910.
  • the communication device 1900 may further include a transceiver 1930, and the processor 1910 may control the transceiver 1930 to communicate with other devices. Specifically, it may send information or data to other devices or receive information or data sent by other devices.
  • the transceiver 1930 may include a transmitter and a receiver.
  • the transceiver 1930 may further include an antenna, and the number of antennas may be one or more.
  • the communication device 1900 may specifically be the second device in the embodiments of this application, and the communication device 1900 may implement the corresponding processes implemented by the second device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.
  • the communication device 1900 may specifically be the first device in the embodiments of this application, and the communication device 1900 may implement the corresponding processes implemented by the first device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.
  • Figure 20 is a schematic structural diagram of a chip according to an embodiment of this application.
  • the chip 2000 shown in Figure 20 includes a processor 2010, which can call and run computer programs from memory to implement the methods in the embodiments of this application.
  • chip 2000 may further include memory 2020.
  • Processor 2010 can call and run computer programs from memory 2020 to implement the methods in the embodiments of this application.
  • the memory 2020 can be a separate device independent of the processor 2010, or it can be integrated into the processor 2010.
  • the chip 2000 may also include an input interface 2030.
  • the processor 2010 can control the input interface 2030 to communicate with other devices or chips; specifically, it can acquire information or data sent by other devices or chips.
  • the chip 2000 may also include an output interface 2040.
  • the processor 2010 can control the output interface 2040 to communicate with other devices or chips, specifically, to output information or data to other devices or chips.
  • the chip can be applied to the second device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the second device in the various methods of the embodiments of this application.
  • the chip can be applied to the second device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the second device in the various methods of the embodiments of this application.
  • the chip can implement the corresponding processes implemented by the second device in the various methods of the embodiments of this application.
  • the chip can be applied to the first device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the first device in the various methods of the embodiments of this application.
  • the chip can be applied to the first device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the first device in the various methods of the embodiments of this application.
  • the chip can implement the corresponding processes implemented by the first device in the various methods of the embodiments of this application.
  • chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.
  • This application also provides a computer storage medium storing one or more programs, which can be executed by one or more processors to implement the methods in this application.
  • Figure 21 is a schematic block diagram of a communication system provided in an embodiment of this application. As shown in Figure 21, the communication system 2100 includes a first device 2110 and a second device 2120.
  • the first device 2110 can be used to implement the corresponding functions implemented by the first device in the above method
  • the second device 2120 can be used to implement the corresponding functions implemented by the second device in the above method. For the sake of brevity, these will not be elaborated here.
  • the processor in the embodiments of this application may be an integrated circuit chip with signal processing capabilities.
  • the steps of the above method embodiments can be completed by integrated logic circuits in the processor's hardware or by instructions in software form.
  • the processor described above may be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application.
  • the general-purpose processor may be a microprocessor or any conventional processor.
  • the steps of the methods disclosed in the embodiments of this application can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software modules may reside in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art.
  • the storage medium is located in the memory, and the processor reads the information in the memory and, in conjunction with its hardware, completes the steps of the above method.
  • the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory.
  • the volatile memory can be random access memory (RAM), which is used as an external cache.
  • RAM Direct Rambus RAM
  • SRAM Static Random Access Memory
  • DRAM Dynamic Random Access Memory
  • SDRAM Synchronous DRAM
  • DDR SDRAM Double Data Rate SDRAM
  • ESDRAM Enhanced Synchronous DRAM
  • SLDRAM Synchlink DRAM
  • DR RAM Direct Rambus RAM
  • the memory in the embodiments of this application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), or double data rate synchronous dynamic random access memory (DRAM).
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • DRAM double data rate synchronous dynamic random access memory
  • DDR SDRAM Data rate SDRAM
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous link dynamic random access memory
  • DR RAM direct memory bus RAM
  • This application also provides a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium can be applied to the second device in the embodiments of this application, and the computer program causes the computer to execute the corresponding processes implemented by the second device in the various methods of the embodiments of this application.
  • the computer program causes the computer to execute the corresponding processes implemented by the second device in the various methods of the embodiments of this application.
  • the computer program causes the computer to execute the corresponding processes implemented by the second device in the various methods of the embodiments of this application.
  • the computer-readable storage medium can be applied to the first device in the embodiments of this application, and the computer program causes the computer to execute the corresponding processes implemented by the first device in the various methods of the embodiments of this application.
  • the computer program causes the computer to execute the corresponding processes implemented by the first device in the various methods of the embodiments of this application.
  • the computer program causes the computer to execute the corresponding processes implemented by the first device in the various methods of the embodiments of this application.
  • This application also provides a computer program product, including computer program instructions.
  • the computer program product can be applied to the second device in the embodiments of this application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the second device in the various methods of the embodiments of this application.
  • the computer program instructions cause the computer to execute the corresponding processes implemented by the second device in the various methods of the embodiments of this application.
  • the computer program instructions cause the computer to execute the corresponding processes implemented by the second device in the various methods of the embodiments of this application.
  • the computer program product can be applied to the first device in the embodiments of this application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the first device in the various methods of the embodiments of this application.
  • the computer program instructions cause the computer to execute the corresponding processes implemented by the first device in the various methods of the embodiments of this application.
  • the computer program instructions cause the computer to execute the corresponding processes implemented by the first device in the various methods of the embodiments of this application.
  • This application also provides a computer program.
  • the computer program can be applied to the second device in the embodiments of this application.
  • the computer program When the computer program is run on a computer, it causes the computer to execute the corresponding processes implemented by the second device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.
  • the computer program can be applied to the first device in the embodiments of this application.
  • the computer program When the computer program is run on a computer, it causes the computer to execute the corresponding processes implemented by the first device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.
  • the disclosed systems, apparatuses, and methods can be implemented in other ways.
  • the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods.
  • multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed.
  • the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.
  • the units described as separate components may or may not be physically separate.
  • the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.
  • the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.
  • the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application.
  • the aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente demande concerne, selon des modes de réalisation, un procédé et un appareil de détermination de ressources, un premier dispositif et un second dispositif. Le procédé comprend l'étape suivante : un premier dispositif détermine une première ressource de domaine fréquentiel, la première ressource de domaine fréquentiel étant utilisée pour envoyer de premières informations d'identification du premier dispositif à un second dispositif.
PCT/CN2024/092279 2024-05-10 2024-05-10 Procédé et appareil de détermination de ressources, et premier dispositif et second dispositif Pending WO2025231819A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2024/092279 WO2025231819A1 (fr) 2024-05-10 2024-05-10 Procédé et appareil de détermination de ressources, et premier dispositif et second dispositif

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2024/092279 WO2025231819A1 (fr) 2024-05-10 2024-05-10 Procédé et appareil de détermination de ressources, et premier dispositif et second dispositif

Publications (1)

Publication Number Publication Date
WO2025231819A1 true WO2025231819A1 (fr) 2025-11-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2024/092279 Pending WO2025231819A1 (fr) 2024-05-10 2024-05-10 Procédé et appareil de détermination de ressources, et premier dispositif et second dispositif

Country Status (1)

Country Link
WO (1) WO2025231819A1 (fr)

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