Method and apparatus for wireless communication

Abstract

Embodiments of the present application provide a method and device for wireless communication, which can determine the position of an AMP device or the position of a receiving end device of a reference signal based on the reference signal transmitted by the AMP device on N candidate frequency domain resources, and / or can determine the distance between the AMP device and the receiving end device of the reference signal based on the reference signal transmitted by the AMP device on N candidate frequency domain resources. The method for wireless communication comprises: transmitting, by an AMP device, a reference signal on N candidate frequency domain resources; wherein the reference signal transmitted on the N candidate frequency domain resources is used to determine the position of the AMP device or the receiving end device of the reference signal, and / or the reference signal transmitted on the N candidate frequency domain resources is used to determine the distance between the AMP device and the receiving end device of the reference signal, N is a positive integer, and N≥2.

Description

Technical Field

[0001] This application relates to the field of communications, and more specifically, to a method and apparatus for wireless communication. Background Technology

[0002] Ambient Power (AMP) devices are low in complexity and cost, requiring no maintenance or batteries. They support energy harvesting and / or backscatter communication, enabling high-density and large-scale deployment at a relatively low cost. However, considering the service characteristics, capabilities, and power consumption limitations of AMP devices, traditional positioning methods cannot meet their positioning or ranging requirements. Therefore, how to achieve positioning or ranging for AMP devices is a problem that needs to be solved. Summary of the Invention

[0003] This application provides a wireless communication method and apparatus, which can determine the location of the AMP device or the location of the receiving device of the reference signal based on the reference signal transmitted by the AMP device on N candidate frequency domain resources, and / or determine the distance between the AMP device and the receiving device of the reference signal based on the reference signal transmitted by the AMP device on N candidate frequency domain resources.

[0004] In a first aspect, a wireless communication method is provided, the method comprising:

[0005] The AMP device transmits reference signals on N candidate frequency domain resources;

[0006] The reference signals transmitted on the N candidate frequency domain resources are used to determine the location of the AMP device or the receiving device of the reference signal, and / or the reference signals transmitted on the N candidate frequency domain resources are used to determine the distance between the AMP device and the receiving device of the reference signal, where N is a positive integer and N≥2.

[0007] Secondly, a wireless communication method is provided, the method comprising:

[0008] The communication equipment receives reference signals transmitted by the AMP device on N candidate frequency domain resources;

[0009] The reference signals transmitted on the N candidate frequency domain resources are used to determine the location of the AMP device or the communication device, and / or the reference signals transmitted on the N candidate frequency domain resources are used to determine the distance between the AMP device and the communication device, where N is a positive integer and N≥2.

[0010] Thirdly, an AMP device is provided for performing the method described in the first aspect above.

[0011] Specifically, the AMP device includes a functional module for performing the method described in the first aspect above.

[0012] Fourthly, a communication device is provided for performing the method described in the second aspect above.

[0013] Specifically, the communication device includes a functional module for performing the method described in the second aspect above.

[0014] Fifthly, an AMP device is provided, including a processor and a memory; the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, causing the AMP device to perform the method in the first aspect described above.

[0015] In a sixth aspect, a communication device is provided, including a processor and a memory; the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, causing the communication device to perform the method in the second aspect described above.

[0016] In a seventh aspect, an apparatus is provided for implementing the method in any one of the first to second aspects described above.

[0017] Specifically, the device includes a processor for retrieving and running a computer program from a memory, causing a device equipped with the device to perform the method described in any of the first to second aspects above.

[0018] Eighthly, a computer-readable storage medium is provided for storing a computer program that causes a computer to perform the methods of any one of the first to second aspects described above.

[0019] Ninthly, a computer program product is provided, including computer program instructions that cause a computer to perform the methods of any one of the first to second aspects described above.

[0020] In a tenth aspect, a computer program is provided that, when run on a computer, causes the computer to perform the methods of any one of the first to second aspects described above.

[0021] The above technical solution enables the determination of the location of the AMP device or the location of the receiving device of the reference signal based on the reference signal transmitted by the AMP device on N candidate frequency domain resources, and / or enables the determination of the distance between the AMP device and the receiving device of the reference signal based on the reference signal transmitted by the AMP device on N candidate frequency domain resources. Attached Figure Description

[0022] Figure 1This is a schematic diagram of a communication system architecture used in an embodiment of this application.

[0023] Figure 2 This is a schematic diagram of a zero-power communication method provided in this application.

[0024] Figure 3 This is a schematic diagram of a backscatter communication method provided in this application.

[0025] Figure 4 This is a schematic diagram of an energy harvesting method provided in this application.

[0026] Figure 5 This is a circuit schematic diagram of a resistive load modulation provided in this application.

[0027] Figure 6 This is a schematic diagram of a channel bandwidth provided in this application.

[0028] Figure 7 This is a schematic flowchart of a wireless communication method provided according to an embodiment of this application.

[0029] Figures 8 to 13 These are schematic diagrams of candidate frequency domain resources for frequency hopping transmission reference signals of the AMP device according to embodiments of this application.

[0030] Figure 14 This is a schematic diagram of the relative numbering of an available candidate frequency domain resource according to an embodiment of this application.

[0031] Figure 15 This is a schematic diagram of TOA estimation for intra-channel frequency hopping according to an embodiment of this application.

[0032] Figure 16 This is a schematic diagram of TOA estimation for inter-channel frequency hopping according to an embodiment of this application.

[0033] Figure 17 This is a schematic block diagram of an AMP device provided according to an embodiment of this application.

[0034] Figure 18 This is a schematic block diagram of a communication device provided according to an embodiment of this application.

[0035] Figure 19 This is a schematic block diagram of another communication device provided according to an embodiment of this application.

[0036] Figure 20 This is a schematic block diagram of an apparatus provided according to an embodiment of this application.

[0037] Figure 21 This is a schematic block diagram of a communication system provided according to an embodiment of this application. Detailed Implementation

[0038] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art without creative effort regarding the embodiments of this application are within the scope of protection of this application.

[0039] The technical solutions of this application embodiment can be applied to various communication systems, such as: Global System for Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, evolution of NR system, LTE-based access to unlicensed spectrum (LTE-U) system, NR-based access to unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), and Internet of Things (IoT). Things (IoT), Wireless Fidelity (WiFi), 5th Generation (5G) systems, 6th Generation (6G) systems, or other communication systems.

[0040] Traditional communication systems typically support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication but also, for example, device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), vehicle-to-vehicle (V2V) communication, sidelink (SL) communication, and vehicle-to-everything (V2X) communication. The embodiments of this application can also be applied to these communication systems.

[0041] In some embodiments, the communication system in this application can be applied to carrier aggregation (CA) scenarios, dual connectivity (DC) scenarios, standalone (SA) network deployment scenarios, or non-standalone (NSA) network deployment scenarios.

[0042] In some embodiments, the communication system in this application can be applied to unlicensed spectrum, wherein unlicensed spectrum can also be considered as shared spectrum; or, the communication system in this application can also be applied to licensed spectrum, wherein licensed spectrum can also be considered as non-shared spectrum.

[0043] In some embodiments, the communication system in this application can be applied to the FR1 band (corresponding to a band range of 410MHz to 7.125GHz), the FR2 band (corresponding to a band range of 24.25GHz to 52.6GHz), or new bands such as high-frequency bands corresponding to a band range of 52.6GHz to 71GHz or a band range of 71GHz to 114.25GHz.

[0044] This application describes various embodiments in conjunction with AMP devices and communication devices; wherein, the AMP device may also be referred to as a zero-power device or an ambient energy IoT device; the communication device may be a network device (such as a base station), or an access point (AP), or a terminal device, or a station (STA), or a TRP, or a relay device. Of course, the communication device may also be other devices, and this application embodiment is not limited to them.

[0045] Terminal devices can be cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistant (PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, in-vehicle devices, wearable devices, terminal devices in next-generation communication systems such as NR networks, or terminal devices in future evolved Public Land Mobile Network (PLMN) networks, etc.

[0046] In the embodiments of this application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on water (such as ships); and it can also be deployed in the air (such as airplanes, balloons and satellites).

[0047] In the embodiments of this application, the terminal device may be a mobile phone, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical care, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, a wireless terminal device in a smart home, an in-vehicle communication device, a wireless communication chip / application-specific integrated circuit (ASIC) / system-on-chip (SoC), etc.

[0048] By way of example and not limitation, in this embodiment, the terminal device can also be a wearable device. Wearable devices, also known as wearable smart devices, are a general term for devices that utilize wearable technology to intelligently design and develop everyday wearables, such as glasses, gloves, watches, clothing, and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not merely hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are feature-rich, large in size, and can achieve complete or partial functions without relying on a smartphone, such as smartwatches or smart glasses, as well as those that focus on a specific type of application function and require the use of other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0049] In the embodiments of this application, the network device can be a device for communicating with mobile devices. The network device can be an access point (AP) in WLAN, a base station (BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved Node B (eNB or eNodeB) in LTE, a relay station or access point, or a network device or base station (gNB) or transmission reception point (TRP) in vehicle-mounted devices, wearable devices, and NR networks, or a network device in a future evolved PLMN network or NTN network, etc.

[0050] By way of example and not limitation, in the embodiments of this application, the network device may have mobility characteristics; for example, the network device may be a mobile device. In some embodiments, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. In some embodiments, the network device may also be a base station located on land, water, or other similar locations.

[0051] In this embodiment, the network device can provide services to a cell. The terminal device communicates with the network device through the transmission resources (e.g., frequency domain resources, or spectrum resources) used by the cell. The cell can be the cell corresponding to the network device (e.g., a base station). The cell can belong to a macro base station or to a base station corresponding to a small cell. The small cell can include: metro cell, micro cell, pico cell, femto cell, etc. These small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-speed data transmission services.

[0052] For example, the communication system 100 used in the embodiments of this application is as follows: Figure 1 As shown. The communication system 100 may include a communication device 110, which may be a device that communicates with an AMP device 120 (or a zero-power device). The communication device 110 may provide communication coverage for a specific geographical area and may communicate with AMP devices located within that coverage area.

[0053] Figure 1 An exemplary embodiment shows a communication device and two AMP devices. Optionally, the communication system 100 may include multiple communication devices and each communication device may include other numbers of AMP devices within its coverage area. This application embodiment does not limit this.

[0054] In some embodiments, the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which are not limited in this application.

[0055] It should be understood that devices with communication functions in the network / system of this application embodiment can be referred to as communication devices. Figure 1 Taking the communication system 100 shown as an example, the communication equipment may include a communication device 110 and an AMP device 120 with communication functions. The communication device 110 and the AMP device 120 may be the specific devices described above, which will not be repeated here. The communication equipment may also include other devices in the communication system 100, such as network controllers, mobility management entities and other network entities. This application embodiment does not limit this.

[0056] It should be understood that the terms "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. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Furthermore, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0057] The terminology used in the embodiments section of this application is for the purpose of explaining specific embodiments of this application only, and is not intended to limit this application. The terms "first," "second," "third," and "fourth," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0058] It should be understood that the term "instruction" mentioned in the embodiments of this application can be a direct instruction, an indirect instruction, or an indication of a relationship. For example, A instructing B can mean that A directly instructs B, such as B being able to obtain information through A; it can also mean that A indirectly instructs B, such as A instructing C, so B can obtain information through C; or it can mean that there is a relationship between A and B.

[0059] In the description of the embodiments of this application, the term "correspondence" may indicate that there is a direct or indirect correspondence between two things, or that there is an association between two things, or that there is a relationship of instruction and being instructed, configuration and being configured, etc.

[0060] In this application embodiment, "predefined" or "preconfigured" 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). This application does not limit the specific implementation method. For example, predefined can refer to what is defined in the protocol.

[0061] In this application embodiment, the "protocol" may refer to a standard protocol in the field of communication, such as an evolution of existing LTE protocol, NR protocol, Wi-Fi protocol or other related communication system protocols. This application does not limit the type of protocol.

[0062] To facilitate a better understanding of the embodiments of this application, the zero-power communication technology related to this application will be described.

[0063] Zero-power communication employs energy harvesting and / or backscatter communication technologies. A zero-power communication network consists of network devices and zero-power devices, such as... Figure 2 As shown in the diagram, the network device is used to send wireless power signals, downlink communication signals, and receive backscattered signals from the zero-power device. A basic zero-power device includes an energy harvesting module, a backscattered communication module, and a low-power computing module. In addition, the zero-power device may also have a memory or sensor to store basic information (such as object identification) or acquire sensor data such as ambient temperature and humidity.

[0064] The key technologies for zero-power communication mainly include radio frequency (RF) power harvesting and backscattering communication.

[0065] Specifically, radio frequency power harvesting can be as follows: Figure 3 As shown, the radio frequency energy harvesting module harvests electromagnetic wave energy from space based on the principle of electromagnetic induction, thereby obtaining the energy required to drive zero-power devices, such as driving low-power demodulation and modulation modules, sensors, and memory reading. Therefore, zero-power devices do not require traditional batteries.

[0066] Specifically, backscattering communication can be like... Figure 4 As shown, a zero-power communication terminal receives wireless signals sent by the network, modulates the wireless signals, loads the information to be transmitted, and radiates the modulated signal from the antenna. This information transmission process is called backscatter communication. Backscatter and load modulation are inseparable. Load modulation adjusts and controls the circuit parameters of the oscillation circuit of the zero-power device according to the rhythm of the data stream, causing parameters such as the impedance of the electronic tag to change accordingly, thus completing the modulation process. Load modulation technology mainly includes two methods: resistive load modulation and capacitive load modulation. In resistive load modulation, a resistor is connected in parallel with the load. This resistor is turned on or off based on the control of the binary data stream, such as... Figure 5 As shown, switching a resistor on and off causes a change in the circuit voltage, thus enabling Amplitude Shift Keying (ASK) modulation. This involves adjusting the amplitude of the backscattered signal from the zero-power device to modulate and transmit the signal. Similarly, in capacitive load modulation, switching the capacitor on and off changes the circuit's resonant frequency, enabling Frequency Shift Keying (FSK) modulation. This involves adjusting the operating frequency of the backscattered signal from the zero-power device to modulate and transmit the signal.

[0067] As can be seen, zero-power devices modulate the incoming signal using load modulation, thereby achieving backscatter communication. Therefore, zero-power devices have significant advantages:

[0068] (1) Zero-power devices do not actively transmit signals, so they do not require complex radio frequency links, such as power amplifiers (PA) and radio frequency filters;

[0069] (2) Zero-power devices do not need to actively generate high-frequency signals, therefore they do not need high-frequency crystal oscillators;

[0070] (3) With the help of backscatter communication, the signal transmission of zero-power devices does not require the energy of the zero-power devices themselves.

[0071] Zero-power communication (ZHW) 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.

[0072] To facilitate a better understanding of the embodiments of this application, the power supply signal and trigger signal in the zero-power communication system related to this application will be described.

[0073] Power supply signal: The carrier of the power supply signal can be a base station, smartphone, smart gateway, charging station, micro base station, etc.; in terms of frequency band, the radio waves used for power supply can be low-frequency, medium-frequency, high-frequency, etc.; in terms of waveform, the radio waves used for power supply can be sine waves, square waves, triangular waves, pulses, rectangular waves, etc.; furthermore, it can be a continuous wave or a discontinuous wave (i.e., allowing for a certain period of interruption). The power supply may be a signal specified in the 3GPP standard. Examples include the Sounding Reference Signal (SRS), Physical Uplink Shared Channel (PUSCH), Physical Random Access Channel (PRACH), Physical Uplink Control Channel (PUCCH), Physical Downlink Control Channel (PDCCH), Physical Downlink Shared Channel (PDSCH), Physical Broadcast Channel (PBCH), etc.

[0074] Trigger signal / control information: The trigger signal carrier can be a base station, smartphone, smart gateway, etc.; the frequency band can be low-frequency, mid-frequency, high-frequency, etc.; the waveform can be a sine wave, square wave, triangle wave, pulse, rectangular wave, etc.; furthermore, it can be a continuous wave or a discontinuous wave (i.e., allowing for a certain period of interruption). The trigger signal may be a signal specified in the 3GPP standard, such as SRS, PUSCH, PRACH, PUCCH, PDCCH, PDSCH, PBCH, etc.; it may also be a new signal.

[0075] To facilitate a better understanding of the embodiments of this application, the classification of zero-power devices related to this application is explained.

[0076] Alternatively, based on the energy source and usage of zero-power devices, zero-power devices can be classified into passive zero-power devices, semi-passive zero-power devices, and active zero-power devices.

[0077] 1) Passive zero-power devices

[0078] Zero-power devices do not require an internal battery. When a zero-power device is near a network device (such as a reader in a Radio Frequency Identification (RFID) system), it falls within the near-field range of the network device's antenna radiation. Therefore, the zero-power device's antenna generates an induced current through electromagnetic induction, which drives the device's low-power chip circuitry. This circuitry demodulates the forward link signal (downlink, from the network device to the zero-power device) and modulates the backward link signal (uplink, from the zero-power device to the network device). For backscatter links, the zero-power device uses backscattering to transmit signals.

[0079] As can be seen, passive zero-power devices do not require built-in batteries to drive either the forward or reverse link, making them truly zero-power devices.

[0080] Passive zero-power 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 conversion (ADCs), etc. Therefore, they have many advantages such as small size, light weight, very low price, and long service life.

[0081] Passive zero-power terminals can also support other energy harvesting methods. By harvesting energy from the environment (such as light energy, heat energy, kinetic energy, mechanical energy, etc.), they can obtain energy for the drive circuit and support the terminal device to communicate.

[0082] 2) Semi-passive zero-power devices

[0083] Semi-passive zero-power devices do not have conventional batteries installed, but they can use radio frequency (RF) energy harvesting modules to harvest radio wave energy or use energy harvesting modules to harvest energy from the environment (such as solar energy, thermal energy, mechanical vibration energy, etc.), and store the harvested energy 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 zero-power device, enabling demodulation of forward link signals and modulation of backward link signals. For backscatter links, the zero-power device uses backscattering to transmit signals.

[0084] As can be seen, semi-passive zero-power devices do not require built-in batteries to drive either the forward or reverse link. Although they use energy stored in capacitors during operation, the energy comes from the radio energy collected by the energy harvesting module, making them a true zero-power device.

[0085] Semi-passive zero-power devices inherit many advantages of passive zero-power devices, and therefore have many advantages such as small size, light weight, very low price, and long service life.

[0086] 3) Active zero-power devices

[0087] In some scenarios, zero-power devices can also be active zero-power devices. These terminals can have a built-in battery (a conventional battery, such as a dry cell battery or a rechargeable lithium battery). The battery powers the low-power chip circuitry of the zero-power device, enabling demodulation of the forward link signal and modulation of the backward link signal. However, for the backscatter link, the zero-power device uses backscattering to transmit the signal. Therefore, the zero power consumption of this type of terminal 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. Although active zero-power devices use batteries, their power consumption is extremely low due to ultra-low power communication sampling technology, thus significantly improving battery life compared to existing technologies.

[0088] Active zero-power devices use a built-in battery to power the RFID chip, increasing the tag's read / write distance and improving communication reliability. Therefore, they are used in scenarios with relatively high requirements for communication distance and read latency.

[0089] Some zero-power terminals, such as semi-passive zero-power terminals or active zero-power terminals, can have the ability to actively transmit. That is, in addition to communicating through backscattering, the backlink can also communicate through active transmission.

[0090] As is well known, zero-power IoT services, like other IoT services, will primarily focus on upstream applications. Therefore, based on transmitter type, zero-power devices can be categorized into backscatter-based zero-power devices, active transmitter-based zero-power devices, and zero-power devices that combine both backscatter and active transmitter capabilities.

[0091] 1) Zero-power devices based on backscattering

[0092] These zero-power devices transmit uplink data using the backscattering method described above. These devices do not have an active transmitter for active transmission, but only a backscattering transmitter. Therefore, when this type of terminal transmits data, a network device needs to provide a carrier wave, and the terminal device uses this carrier wave for backscattering to achieve data transmission.

[0093] 2) Zero-power devices based on active transmitters

[0094] These zero-power devices use active transmitters with active transmission capabilities for uplink data transmission. Therefore, when sending data, these devices can transmit data using their own active transmitters without requiring a carrier wave from network equipment. Suitable active transmitters for zero-power devices include, for example, ultra-low-power ASK or ultra-low-power FSK transmitters. Based on current implementations, these transmitters can reduce overall power consumption to 400–600 µW when transmitting a 100 µW signal.

[0095] 3) Zero-power devices that simultaneously feature backscattering and active transmitters.

[0096] These terminals can support both backscatter and active transmitters. The terminal can determine which uplink signal transmission method to use based on different conditions (such as battery level and available ambient energy) or the scheduling of network devices: whether to use backscatter or active transmitter for active transmission.

[0097] To facilitate a better understanding of the embodiments of this application, the related cellular passive Internet of Things will be described.

[0098] Cellular IoT is booming. For example, 3GPP has standardized IoT technologies such as Narrow Band Internet of Things (NB-IoT), Machine Type Communication (MTC), and Reduced Capability (RedCap). However, there are still many IoT communication needs in various scenarios that cannot be met by existing technologies.

[0099] For example, harsh communication environments. Some IoT scenarios may face extreme environments 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 working environments are also detrimental to IoT maintenance, such as battery replacement.

[0100] Another example is the need for extremely small terminal form factors. Certain IoT communication scenarios, such as food traceability, commodity distribution, and smart wearables, require terminals to be extremely small for ease of use in these environments. For instance, IoT terminals used for commodity management in the distribution process typically use electronic tags, embedded in very compact form factors into product packaging. Furthermore, lightweight wearable devices can enhance the user experience while meeting user needs.

[0101] Another example is the need for extremely low-cost IoT communication. Numerous IoT communication scenarios require IoT terminals to be sufficiently inexpensive to enhance their competitiveness compared to other alternative technologies. For instance, in logistics or warehousing scenarios, to facilitate the management of large quantities of goods in circulation, IoT terminals can be attached to each item, enabling 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.

[0102] Therefore, in order to cover these unmet IoT communication needs, it is also necessary to develop ultra-low cost, extremely small size, battery-free / maintenance-free IoT in cellular networks, and zero-power IoT can meet this need.

[0103] It's worth noting that zero-power IoT can also be called Ambientpower-enabled IoT, or simply Ambient IoT. Specifically, Ambient IoT devices refer to IoT devices that utilize various forms of environmental energy, such as radio frequency energy, light energy, solar energy, thermal energy, and mechanical energy. Ambient IoT devices may have no energy storage capacity or very limited energy storage capacity (e.g., using capacitors with a capacitance of tens of microfarads (µF)).

[0104] In some embodiments, the Ambient IoT device can be used in at least the following four scenarios:

[0105] Object recognition, such as in logistics, production line product management, and supply chain management;

[0106] Environmental monitoring, such as monitoring of temperature, humidity, and harmful gases in the work environment and natural environment;

[0107] Location services, such as indoor positioning, smart item finding, and production line item positioning;

[0108] Intelligent control, such as the intelligent control of various electrical 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).

[0109] To facilitate a better understanding of the embodiments of this application, the channels in the WiFi related to this application will be described.

[0110] Wi-Fi is a WLAN based on the IEEE 802.11 standard. Wireless Local Area Networks (WLANs) have many standard protocols, such as the IEEE 802.11 protocol family and the HiperLAN protocol family.

[0111] The WLAN channel list is a list of wireless channels that an IEEE 802.11 (or WiFi) wireless network should use.

[0112] The 802.11 working group has allocated two independent frequency bands, 2.4 GHz and 4.9 / 5.8 GHz. Each band is further divided into several channels, and each country formulates its own policies on how to use these bands, as shown in Table 1.

[0113] Table 1

[0114]

[0115]

[0116] The effective channel bandwidth is 20MHz, and the actual bandwidth is 22MHz, of which 2MHz is an isolation band. Figure 6 As shown.

[0117] The center frequency of adjacent channels is 5MHz apart. There are multiple adjacent channels with overlapping frequencies. There are three groups of channels that do not interfere with each other (1, 6, 11 or 2, 7, 12 or 3, 8, 13), as shown in Table 2.

[0118] Table 2

[0119]

[0120] To facilitate a better understanding of the embodiments of this application, the problems solved by this application will be explained.

[0121] AMP devices (also known as zero-power devices or ambient IoT devices) are low in complexity and cost, and can be maintenance-free and battery-free. They can be divided into passive zero-power terminals, semi-passive zero-power terminals, and active zero-power terminals. They obtain energy for communication by harvesting energy from the environment (such as radio frequency energy, light energy, heat energy, mechanical energy, kinetic energy, etc.). In terms of communication methods, they can support backscattering and / or active transmission communication methods.

[0122] Location positioning is an important application scenario for AMP devices. Due to the power consumption and cost limitations of AMP devices, it is almost impossible to use the large-bandwidth positioning reference signal to measure the reference signal time difference (RSTD) or the transmit-receive time difference (Rx-Tx time difference) for location positioning in cellular positioning systems.

[0123] One feasible approach is to use a dual-frequency phase difference method to determine the propagation delay / distance, thereby completing the positioning / ranging. However, how to design the frequency domain resources of the dual-frequency signals is a problem that urgently needs to be solved.

[0124] To address the aforementioned issues, this application proposes a frequency domain resource allocation method for signals of different frequencies. This method allows AMP devices to determine the frequency domain resources to use when transmitting signals at different frequencies. It enables positioning based on dual-frequency phase difference in zero-power communication scenarios.

[0125] To facilitate understanding of the technical solutions of the embodiments of this application, the technical solutions of this application are described in detail below through specific embodiments. The following related technologies are optional solutions and can be arbitrarily combined with the technical solutions of the embodiments of this application, all of which fall within the protection scope of the embodiments of this application. The embodiments of this application include at least some of the following contents.

[0126] Figure 7 This is a schematic flowchart of a wireless communication method 200 according to an embodiment of this application, such as... Figure 7 As shown, the wireless communication method 200 may include at least some of the following:

[0127] S210, the AMP device transmits reference signals on N candidate frequency domain resources; wherein, the reference signals transmitted on the N candidate frequency domain resources are used to determine the location of the AMP device or the receiving device of the reference signal, and / or, the reference signals transmitted on the N candidate frequency domain resources are used to determine the distance between the AMP device and the receiving device of the reference signal, where N is a positive integer and N≥2;

[0128] S220, the communication device receives reference signals sent by the AMP device on N candidate frequency domain resources.

[0129] It should be understood that Figure 7 The steps or operations of a wireless communication method 200 are illustrated, but these steps or operations are merely examples, and other operations may be performed in the embodiments of this application. Figure 7 Variations of various operations within it.

[0130] In the embodiments of this application, the AMP device can also be called a zero-power device or an Ambient IoT device (A-IoT device). It has a simple structure, low complexity, and low cost. It can support the harvesting of environmental energy (such as light energy, heat energy, radio frequency energy, mechanical energy, kinetic energy, etc.) to obtain the energy required for communication. It can support backscatter communication and / or active transmission communication.

[0131] In this embodiment, the AMP device can be applied to WiFi and / or cellular networks.

[0132] In this embodiment of the application, the communication device can determine the location of the AMP device based on the reference signals transmitted on the N candidate frequency domain resources, or the communication device can determine the location of the receiving end device (i.e., the communication device) of the reference signal based on the reference signals transmitted on the N candidate frequency domain resources; and / or the communication device can determine the distance between the AMP device and the receiving end device (i.e., the communication device) of the reference signal based on the reference signals transmitted on the N candidate frequency domain resources.

[0133] For example, the communication device can determine the location of the AMP device based on the phase characteristics of the reference signals transmitted on the N candidate frequency domain resources. The phase characteristics can be phase changes / phase differences, or the phase characteristics can be phase differences between multiple frequencies (typically, positioning is based on dual-frequency phase differences).

[0134] For example, the communication device can determine the location of the receiving device (i.e., the communication device) of the reference signal based on the phase characteristics of the reference signal transmitted on the N candidate frequency domain resources. The phase characteristics can be phase changes / phase differences, or the phase characteristics can be phase differences between multiple frequencies (typically, positioning is based on dual-frequency phase differences).

[0135] For example, the communication device can determine the distance between the AMP device and the receiving device of the reference signal (i.e., the communication device) based on the phase characteristics of the reference signal transmitted on the N candidate frequency domain resources. The phase characteristics can be phase changes / phase differences, or the phase characteristics can be phase differences between multiple frequencies (typically ranging based on dual-frequency phase differences).

[0136] In some embodiments, the communication device is a network device (such as a base station), or an access point (AP), or a terminal device, or a station (STA), or a transmission reception point (TRP), or a relay device. Of course, the communication device can also be other devices, and this application embodiment is not limited to this.

[0137] In some embodiments, the "reference signal" mentioned in this application may be a positioning reference signal (PRS) or a phase positioning reference signal.

[0138] In some embodiments, the candidate frequency domain resource is one of the following: channel, system bandwidth, carrier bandwidth, band width part (BWP), aggregation / set / binding of multiple BWPs, aggregation / set / binding of multiple subcarriers (also referred to as tones), and aggregation / set / binding of multiple physical resource blocks (PRBs).

[0139] Specifically, within the operating frequency band of an AMP device, multiple channels or carriers can often be allocated, with some channels overlapping and others not. The AMP device can transmit reference signals on multiple candidate frequency domain resources within this operating frequency band. The receiving end (i.e., the communication device) determines the propagation delay / distance between the AMP device and the receiving end (i.e., the communication device) by measuring the phase and / or phase difference of the reference signal, thereby obtaining the distance / location information of the AMP device. Furthermore, candidate frequency domain resources can be channels, BWPs, aggregations of multiple BWPs, aggregations of multiple tones, or aggregations of multiple PRBs.

[0140] For example, when using the 920–925 MHz RFID frequency band for communication, each channel has a bandwidth of 250 kHz. Therefore, the 5 MHz (920–925 MHz) system bandwidth can be divided into 20 channels with a bandwidth of 250 kHz. In this case, the candidate frequency domain resource can be a channel, meaning each channel serves as a candidate frequency domain resource. The AMP device can transmit reference signals on different channels.

[0141] In some embodiments, during S210 described above, the AMP device transmits reference signals on the N candidate frequency domain resources using active transmission or backscattering.

[0142] In some embodiments, the N candidate frequency domain resources are some or all of the candidate frequency domain resources within the deployment frequency band corresponding to the AMP device. That is, in this embodiment, candidate frequency domain resources for transmitting reference signals can be flexibly selected.

[0143] In some embodiments, when the AMP device uses the N candidate frequency domain resources to transmit a reference signal, it uses all or part of the resources on each candidate frequency domain resource to transmit the reference signal.

[0144] For example, when the AMP device uses N candidate frequency domain resources to transmit a reference signal, it uses a portion of the subcarriers on each candidate frequency domain resource to transmit the reference signal.

[0145] For example, suppose the candidate frequency domain resource is a channel, and a channel has 64 subcarriers. When the AMP device uses this channel, it only uses the middle 16 subcarriers to send the reference signal.

[0146] In some embodiments, when the AMP device uses N candidate frequency domain resources to transmit a reference signal, it uses a portion of the resources on each candidate frequency domain resource to transmit the reference signal. The specific portion of the candidate frequency domain resources used can be configured by the network device (semi-static or dynamic configuration), or agreed upon by the protocol, or determined based on at least one of the AMP device's identifier (ID) and the receiver device's identifier (ID) in combination with a preset relationship.

[0147] In some embodiments, the N candidate frequency domain resources do not overlap, or there are partially overlapping candidate frequency domain resources among the N candidate frequency domain resources. That is, the candidate frequency domain resources of the AMP device may not overlap with each other, or there may be some overlap between the frequency domain resources.

[0148] In the embodiments of this application, the number of the candidate frequency domain resource can also be referred to as the index of the candidate frequency domain resource.

[0149] In some embodiments, the reference signal transmitted by the AMP device includes a frame header or a packet header, or the AMP device transmits information carrying a frame header or a packet header before transmitting the reference signal; wherein the frame header or packet header carries at least the length of time that the candidate frequency domain resources are occupied (such as transmission opportunity (TXOP)) information.

[0150] Specifically, when the reference signal transmitted by the AMP device includes a frame header or packet header, the frame header or packet header is considered part of the reference signal design. When the AMP device transmits information carrying a frame header or packet header before transmitting the reference signal, the frame header or packet header and the reference signal are treated as two independent parts. The AMP device needs to transmit the frame header or packet header before transmitting the reference signal, so that the frame header or packet header can share a common structure with the headers of other signals / channels.

[0151] It's important to note that in WiFi communication, the transmission of a single frame is guaranteed through physical carrier sensing (not TXOP). TXOP, introduced in 802.11e, is actually "duration-based transmission," meaning that after a node successfully competes for a channel slot, it gains a period of channel usage time during which it can transmit multiple data frames. This transmission method is often described using the term "burst." The TXOP transmission time is guaranteed through virtual carrier sensing.

[0152] In some embodiments, the frame header or packet header also carries at least one of the following:

[0153] Information used to identify the AMP device, such as the AMP device identifier (ID);

[0154] Information used to identify the receiving device, such as the identifier (ID) of the receiving device (i.e., the communication device);

[0155] Synchronization / pilot sequences are used by receiving devices (i.e., communication devices) to obtain synchronization information;

[0156] The AMP device transmits configuration information for the reference signal, such as the actual time-domain start position and duration of transmission, the actual subcarriers used, and the sequence / modulation symbols on each subcarrier.

[0157] In some embodiments, the following relationship exists between the number of times the AMP device transmits reference signals W (i.e., the total number of times reference signals are transmitted on N candidate frequency domain resources), the duration T1 of a single reference signal transmission by the AMP device, and the time T for the network to schedule the AMP device to communicate: W*T1≤T; where W is a positive integer, and T and T1 are both positive numbers. Optionally, any two of W, T1, and T can be configured, and the value of the remaining parameter can be determined based on the relationship between the three.

[0158] In some embodiments, the number of times the AMP device sends reference signals (also known as the number of frequency hopping, i.e., sending reference signals on different candidate frequency domain resources, which is equivalent to performing frequency hopping transmission of reference signals) is agreed upon by the protocol, or the number of times the AMP device sends reference signals is configured by the network (which may be semi-static or dynamically configured).

[0159] In some embodiments, the duration of a single transmission of a reference signal by the AMP device is determined by a protocol, or the duration of a single transmission of a reference signal by the AMP device is configured by the network (which may be semi-static or dynamically configured).

[0160] In some embodiments, the time interval between two consecutive frequency hopping transmissions of the reference signal by the AMP device is determined by the protocol, or the time interval between two consecutive frequency hopping transmissions of the reference signal by the AMP device is configured by the network (which may be semi-static or dynamically configured).

[0161] In some embodiments, the maximum duration for the AMP device to transmit reference signals is determined by a protocol, or the maximum duration for the AMP device to transmit reference signals is configured by the network (which may be semi-static or dynamically configured).

[0162] In some embodiments, different AMP devices use the same method to determine candidate frequency domain resources for transmitting reference signals based on dual-frequency phase difference for ranging and / or positioning. That is, different terminals can use the same association to determine candidate frequency domain resources for use in the (i+1)th available time unit based on the candidate frequency domain resources used in the i-th available time unit.

[0163] In some embodiments, different AMP devices determine candidate frequency domain resources for transmitting reference signals based on dual-frequency phase difference in different ways. That is, a unique association for each AMP device determines the candidate frequency domain resources for transmitting reference signals based on dual-frequency phase difference.

[0164] In some embodiments, different AMP devices use frequency-division multiplexing (FDM) to transmit reference signals for ranging and / or positioning based on dual-frequency phase difference.

[0165] In some embodiments, the AMP device may have one or more candidate frequency domain resources for transmitting reference signals on the same available time unit. Optionally, the available time unit may be a time unit configured by the network for the AMP device, or the available time unit may be a time unit preempted by the AMP device, or the available time unit may be a time unit preempted and shared by the network device for the AMP device.

[0166] For example, an AMP device can transmit a reference signal on only one candidate frequency domain resource in each available time unit.

[0167] For example, an AMP device can transmit reference signals on at least two candidate frequency domain resources in each available time unit.

[0168] For example, an AMP device can transmit a reference signal on one candidate frequency domain resource in one available time unit, and an AMP device can transmit a reference signal on at least two candidate frequency domain resources in another available time unit.

[0169] In some embodiments, the time unit is one of the following: symbol, time slot, mini-time slot, subframe, second, millisecond, microsecond.

[0170] In some embodiments, the candidate frequency domain resources used for transmitting the reference signal in the i-th available time unit are different from those used in the (i+1)-th available time unit, where i is an integer greater than or equal to 0. That is, transmitting the reference signal on different candidate frequency domain resources is equivalent to performing frequency hopping transmission of the reference signal.

[0171] In some embodiments, the interval between the candidate frequency domain resources for transmitting the reference signal in the i-th available time unit and the candidate frequency domain resources for transmitting the reference signal in the (i+1)-th available time unit is greater than or equal to X frequency domain units, where X is a positive integer. Optionally, the frequency domain unit is one of the following: candidate frequency domain resources, channel, system bandwidth, carrier, subcarrier, physical resource block (PRB), band width part (BWP), megahertz (MHz), kilohertz (kHz), hertz (Hz). That is, X can be an absolute bandwidth, such as X MHz, X kHz, etc.; or a relative interval, such as X channels.

[0172] In some embodiments, the X frequency domain units are defined by a protocol, or the X frequency domain units are configured by the network (which may be semi-statically configured or dynamically configured).

[0173] In some embodiments, when the number of candidate frequency domain resources used by the AMP device for transmitting a reference signal in the same available time unit is one, the candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on at least one of the following:

[0174] The candidate frequency domain resources used by the AMP device in the i-th available time unit, the frequency hopping interval, the total number of candidate frequency domain resources in the deployment frequency band corresponding to the AMP device, the smallest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and the largest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device.

[0175] Specifically, the unit of the frequency hopping interval can be candidate frequency domain resources. Of course, the unit of the frequency hopping interval can also be other frequency domain resources, and this application embodiment is not limited to this.

[0176] In some embodiments, the frequency hopping interval is a fixed value. For example, the frequency hopping interval is fixed to one or more candidate frequency domain resources.

[0177] In some embodiments, the frequency hopping interval is selected cyclically from a plurality of preset frequency hopping intervals in a first order. Optionally, the first order is agreed upon by a protocol, or the first order is configured by the network (it may be semi-statically configured or dynamically configured).

[0178] For example, the following four frequency hopping intervals (ΔF) are pre-configured: ΔF1, ΔF2, ΔF3, and ΔF4. That is, multiple preset frequency hopping intervals are ΔF1, ΔF2, ΔF3, and ΔF4. When performing frequency hopping, the frequency hopping interval is selected in sequence according to [ΔF1=>ΔF2=>ΔF3=>ΔF4=>ΔF1….].

[0179] In some embodiments, the frequency hopping interval is determined from a plurality of preset frequency hopping intervals based on the value of i. For example, assuming the number of preset frequency hopping intervals is L, the frequency hopping interval to be used is determined based on the following formula i mod L, where mod represents the modulo operation. For example, when i mod L = y1, ΔF1 is selected, and when i mod L = y2, ΔF2 is selected; where y1 and y2 are used as examples, and y3, y4, etc., are also possible, without limitation. Furthermore, y1 / y2, etc., can be a single value or a set of multiple values.

[0180] In some embodiments, the frequency hopping interval is determined from a plurality of preset frequency hopping intervals based on the number of the frequency domain resources used on the i-th available time unit. For example, assuming the number of preset frequency hopping intervals is L, the frequency hopping interval to be used is determined based on the following formula y = i mod L, where y is the number of the frequency domain resources used on the i-th available time unit, and mod represents the modulo operation.

[0181] In some embodiments, the values ​​of the plurality of preset frequency hopping intervals can be positive and / or negative. For example, when there are multiple ΔF, the values ​​can be "+" and "-", such as +2 and -2 can be used as two different values.

[0182] In some embodiments, the frequency hopping interval may also be referred to as the interval between candidate frequency domain resources (e.g., channels) on two adjacent available time units.

[0183] In some embodiments, the candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula 1:

[0184] F (i+1) =(F (i) +ΔF)mod M Formula 1

[0185] Among them, F (i+1) F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i) This indicates the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit, ΔF represents the frequency hopping interval, M represents the total number of candidate frequency domain resources in the deployment frequency band corresponding to the AMP device, and mod represents the modulo operation.

[0186] It should be noted that simple modifications can be made to Formula 1 above, and the modified formula also falls within the scope of protection of this application.

[0187] For example, such as Figure 8 As shown, assuming the candidate frequency domain resources are channels (CH), the deployment frequency band corresponding to the AMP device is 5MHz (920~925MHz). The 5MHz (920~925MHz) system bandwidth is divided into 20 channels with a bandwidth of 250kHz, i.e., M=20. The AMP device can be... Figure 8 The candidate frequency domain resources used on each available time unit can be determined based on Formula 1 above for UE1, UE2, or UE3. Specifically, the first candidate frequency domain resource selected by UE1 during initialization is CH0, the first candidate frequency domain resource selected by UE2 during initialization is CH5, and the first candidate frequency domain resource selected by UE3 during initialization is CH15.

[0188] In some embodiments, in F (i) Given the available candidate frequency domain resources for the AMP device, let F (r) =F (i) The available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula 2:

[0189] F (r+1) =(F (r) Formula 2: +ΔF)mod M

[0190] If F (r+1) For the candidate frequency domain resources available for this AMP device, then F (i+1) =F (r+1) ;

[0191] If F (r+1) For candidate frequency domain resources that are unavailable for this AMP device, let r = r + 1, and perform F based on the updated r. (r+1) Calculation;

[0192] Among them, F (i+1) F represents the number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) This indicates the number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit, ΔF represents the frequency hopping interval, and M represents the total number of candidate frequency domain resources in the deployment frequency band corresponding to the AMP device.

[0193] It should be noted that simple modifications can be made to Formula 2 above, and the modified formula also falls within the scope of protection of this application.

[0194] Specifically, in practical applications, for all candidate frequency domain resources (e.g., channels) within the deployment frequency band, not all candidate frequency domain resources (e.g., channels) may be allocated to a single AMP device. That is, the candidate frequency domain resources that the AMP device can use are only a portion of the total system resources. When the candidate frequency domain resources determined based on Formula 2 above are unavailable, the selection of subsequent candidate frequency domain resources continues iteratively based on Formula 2 until an available candidate frequency domain resource is selected.

[0195] For example, such as Figure 9 As shown, assuming the candidate frequency domain resources are channels (CH), the deployment frequency band corresponding to the AMP device is 5MHz (920~925MHz), and the 5MHz (920~925MHz) system bandwidth is divided into 20 channels with a bandwidth of 250kHz, i.e., M=20. Figure 8The difference is that for UE1, UE2 and UE3, CH2, CH3, CH8, CH9, CH13, CH17 and CH18 of the 20 channels are unavailable. Specifically, the candidate frequency domain resources used on each available time unit can be determined based on the above formula 2. Among them, the first candidate frequency domain resource selected by UE1 during initialization is CH0, the first candidate frequency domain resource selected by UE2 during initialization is CH5, and the first candidate frequency domain resource selected by UE3 during initialization is CH15.

[0196] In some embodiments, the candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula 3:

[0197] F (i+1) =(F (i) +ΔF)mod(q+1)+p Formula 3

[0198] Among them, F (i+1) F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i) ΔF represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit, p represents the smallest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and q represents the largest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device.

[0199] Among them, F (i) and F (i+1) Satisfying: p≤F (i) ≤q, p≤F (i+1) ≤q.

[0200] It should be noted that simple modifications can be made to Formula 3 above, and the modified formula also falls within the scope of protection of this application.

[0201] For example, assuming the candidate frequency domain resource is a channel (CH), the smallest channel number within the deployment band corresponding to the AMP device is CH4 (i.e., p is CH4), and the largest channel number within the deployment band corresponding to the AMP device is CH23 (i.e., q is CH23), then with ΔF = 3 channels, the above formula 3 can be CH. (i+1) =(CH (i) +3) mod 24+4, for example, when channel number 4 is used on the i-th available time domain unit (CH) (i) =CH4), and the channels used on the subsequent available time units are: CH7, CH10, CH13, CH16, CH19, CH22, CH5.

[0202] In some embodiments, in F (i) Given the available candidate frequency domain resources for this AMP device, let F (r) =F (i) The available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula 4:

[0203] F (r+1) =(F (r) +ΔF)mod(q+1)+p Formula 4

[0204] If F (r+1) For the candidate frequency domain resources available for this AMP device, then F (i+1) =F (r+1) ;

[0205] If F (r+1) For candidate frequency domain resources that are unavailable for this AMP device, let r = r + 1, and perform F based on the updated r. (r+1) Calculation;

[0206] Among them, F (i+1) F represents the number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) ΔF represents the number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit, ΔF represents the frequency hopping interval, p represents the smallest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and q represents the largest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device.

[0207] Among them, F (i) and F (i+1) Satisfying: p≤F (i) ≤q, p≤F (i+1) ≤q.

[0208] It should be noted that simple modifications can be made to Formula 4 above, and the modified formula also falls within the scope of protection of this application.

[0209] Specifically, in practical applications, for all candidate frequency domain resources (e.g., channels) within the deployment frequency band, not all candidate frequency domain resources (e.g., channels) may be allocated to a single AMP device. That is, the candidate frequency domain resources that the AMP device can use are only a portion of the total system resources. When the candidate frequency domain resources determined based on Formula 4 above are unavailable, the selection of subsequent candidate frequency domain resources continues iteratively based on Formula 4 until an available candidate frequency domain resource is selected.

[0210] In some embodiments, the candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula 5:

[0211] F (i+1) =(F (i) +ΔF)mod(q k +1)+p k Formula 5

[0212] Among them, F (i+1) F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i) This represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit, ΔF represents the frequency hopping interval, and p k q represents the smallest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device. k This represents the largest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device;

[0213] Among them, F (i) and F (i+1) Satisfy: p k ≤F (i) ≤q k， p k ≤F (i+1) ≤q k .

[0214] It should be noted that simple modifications can be made to Formula 5 above, and the modified formula also falls within the scope of protection of this application.

[0215] For example, such as Figure 10 As shown, assuming the candidate frequency domain resources are channels (CH), the deployment frequency band corresponding to the AMP device is 5MHz (920~925MHz). The system bandwidth of 5MHz (920~925MHz) is divided into 20 channels with a bandwidth of 250kHz, i.e., M=20. The available candidate frequency domain resources within the deployment frequency band are numbered p~q. The candidate frequency domain resources within this frequency band can be grouped (at least into 2 groups). The positional relationship between two adjacent available candidate frequency domain resources in each group is as follows: Figure 8 The schemes are similar. Taking a two-group approach as an example, the candidate frequency domain resources for group 1 are (p1~q1), and the candidate frequency domain resources for group 2 are (p2~q2), where p1=p, p2=q1+1, and q2=q. Figure 8The difference is that UE1 and UE2 are associated with one set of candidate frequency domain resources (CH0~CH9), while UE3 and UE4 are associated with another set of candidate frequency domain resources (CH10~CH19). Specifically, the candidate frequency domain resources used on each available time unit can be determined based on the above formula 5. Among them, the first candidate frequency domain resource selected by UE1 during initialization is CH0, the first candidate frequency domain resource selected by UE2 during initialization is CH5, the first candidate frequency domain resource selected by UE3 during initialization is CH15, and the first candidate frequency domain resource selected by UE4 during initialization is CH11.

[0216] In some embodiments, in F (i) Given the available candidate frequency domain resources for this AMP device, let F (r) =F (i) The available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula 6:

[0217] F (r+1) =(F (r) +ΔF)mod(q k +1)+p k Formula 6

[0218] If F (r+1) For the candidate frequency domain resources available for this AMP device, then F (i+1) =F (r+1) ;

[0219] If F (r+1) For candidate frequency domain resources that are unavailable for this AMP device, let r = r + 1, and perform F based on the updated r. (r+1) Calculation;

[0220] Among them, F (i+1) F represents the number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) This represents the number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit, ΔF represents the frequency hopping interval, and p k q represents the smallest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device. k This represents the largest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device;

[0221] Among them, F (i) and F (i+1) Satisfy: p k ≤F (i) ≤q k， pk ≤F (i+1) ≤q k .

[0222] It should be noted that the above formula 6 can be simply modified, and the modified formula also falls within the protection scope of the present application.

[0223] Specifically, in practical applications, for all candidate frequency domain resources (e.g., channels) within the deployed frequency band, not all candidate frequency domain resources (e.g., channels) may be allocated to an AMP device. That is, the candidate frequency domain resources available to the AMP device are only a part of the entire system resources. When the candidate frequency domain resource determined based on the above formula 6 is unavailable, continue to iteratively select subsequent candidate frequency domain resources based on formula 6 until an available candidate frequency domain resource is selected.

[0224] In some embodiments, the candidate frequency domain resource used by the AMP device on the (i+1)-th available time unit is determined based on the following formula 7:

[0225] F (i+1) =F (i) +(-1) init *(-1) S ΔF Formula 7

[0226] where, F (i+1) represents the number of the candidate frequency domain resource used by the AMP device on the (i+1)-th available time unit, F (i) represents the number of the candidate frequency domain resource used by the AMP device on the i-th available time unit, init takes a value of 0 or 1, and ΔF represents the frequency hopping interval;

[0227] wherein, the initial value of S is 0, when F (i) +(-1) init *(-1) S ΔF<p or F (i) +(-1) init *(-1) S ΔF>q, S=S+1, and F (i+1) is calculated based on the updated S, p represents the minimum candidate frequency domain resource number in the deployed frequency band corresponding to the AMP device, and q represents the maximum candidate frequency domain resource number in the deployed frequency band corresponding to the AMP device;

[0228] wherein, F (i) and F (i+1) satisfy: p≤F (i) ≤q, p≤F (i+1) ≤q.

[0229] For example, Figure 11As shown, assuming the candidate frequency domain resource is a channel (CH), the deployment frequency band corresponding to the AMP device is 5MHz (920~925MHz), and the 5MHz (920~925MHz) system bandwidth is divided into 20 channels with a bandwidth of 250kHz. The AMP device can be... Figure 11 The candidate frequency domain resources used in each available time unit can be determined based on Formula 7 above, for UE1, UE2, UE3, or UE4. Taking UE2 as an example, when UE2 initializes by transmitting reference signals using CH5, with Init set to 0 and ΔF = 3 channels, then F... (i+1) =F (i) +(-1) init *(-1) S ΔF=F (i) +(-1) S *3. Where F (0) =CH5,F (1) =F (0) +(-1) 0 *3 = CH8, F (2) =F (1) +(-1) 0 *3=CH11,F (3) =F (2) +(-1) 0 *3 = CH14, F (4) =F (3) +(-1) 0 *3 = CH17, because F (4) +(-1) 0 *3 = CH20 > CH19, therefore update S = S+1 = 1, then F (5) =F (4) +(-1) 1 *3 = CH14, F (6) =F (5) +(-1) 1 *3=CH11. Figure 11 The other UEs in the series are similar to UE2, and the method for determining the candidate frequency domain resources to be used on the available time units is similar, so it will not be repeated here. Specifically, in... Figure 11 In the initialization process, UE1 selects CH0 as the first candidate frequency domain resource, UE2 selects CH5 as the first candidate frequency domain resource, UE3 selects CH15 as the first candidate frequency domain resource, and UE4 selects CH10 as the first candidate frequency domain resource.

[0230] In some embodiments, in F (i) Given the available candidate frequency domain resources for this AMP device, let F (r) =F(i) , the available candidate frequency domain resource used by the AMP device on the (i+1)-th available time unit is determined based on the following Formula 8:

[0231] F (r+1) =F (r) +(-1) init *(-1) S ΔF Formula 8

[0232] if F (r+1) is an available candidate frequency domain resource for the AMP device, then F (i+1) =F (r+1) ;

[0233] if F (r+1) is an unavailable candidate frequency domain resource for the AMP device, let r=r+1, and calculate F (r+1) based on the updated r;

[0234] where, F (i+1) represents the number of the available candidate frequency domain resource used by the AMP device on the (i+1)-th available time unit, and F (i) represents the number of the available candidate frequency domain resource used by the AMP device on the i-th available time unit, init takes a value of 0 or 1, and ΔF represents a frequency hopping interval;

[0235] where, the initial value of S is 0, when F (i) +(-1) init *(-1) S ΔF <p or F (i) +(-1) init *(-1) S ΔF >q, S=S+1, and calculate F (i+1) based on the updated S, p represents the minimum candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and q represents the maximum candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device;

[0236] where, F (i) and F (i+1) satisfy: p≤F (i) ≤q, p≤F (i+1) ≤q.

[0237] It should be noted that simple modifications can be made to the above Formula 8, and the modified formula also falls within the protection scope of the present application.

[0238] Specifically, in practical applications, for all candidate frequency domain resources (e.g., channels) within the deployment frequency band, not all candidate frequency domain resources (e.g., channels) may be allocated to a single AMP device. That is, the candidate frequency domain resources that the AMP device can use are only a portion of the total system resources. When the candidate frequency domain resources determined based on Formula 8 above are unavailable, the selection of subsequent candidate frequency domain resources continues iteratively based on Formula 8 until an available candidate frequency domain resource is selected.

[0239] In some embodiments, the candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula 9:

[0240] F (i+1) =F (i) +(-1) init *(-1) S ΔF Formula 9

[0241] Among them, F (i+1) F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i) This indicates the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit. The value of init is 0 or 1, and ΔF represents the frequency hopping interval.

[0242] Within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device, the initial value of S is 0, and in F (i) +(-1) init *(-1) S ΔF <p k or F (i) +(-1) init *(-1) S ΔF>q k In the case of S = S + 1, and F is performed based on the updated S. (i+1) The calculation of p k q represents the smallest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device. k This represents the largest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device;

[0243] Among them, F (i) and F (i+1) Satisfy: p k ≤F (i) ≤q k， p k ≤F (i+1) ≤q k .

[0244] It should be noted that simple modifications can be made to Formula 9 above, and the modified formula also falls within the scope of protection of this application.

[0245] For example, such as Figure 12 As shown, assuming the candidate frequency domain resources are channels (CH), the deployment frequency band corresponding to the AMP device is 5MHz (920~925MHz), and the system bandwidth of 5MHz (920~925MHz) is divided into 20 channels with a bandwidth of 250kHz. The available candidate frequency domain resources within the deployment frequency band are numbered p~q. These candidate frequency domain resources can be grouped (at least into 2 groups). The positional relationship between two adjacent available time units of candidate frequency domain resources within each group is as follows: Figure 11 The schemes are similar. Taking a two-group approach as an example, the candidate frequency domain resources for group 1 are (p1~q1), and the candidate frequency domain resources for group 2 are (p2~q2), where p1=p, p2=q1+1, and q2=q. Figure 11 The difference is that UE1 and UE2 are associated with one set of candidate frequency domain resources (CH0 to CH9), while UE3 and UE4 are associated with another set of candidate frequency domain resources (CH10 to CH19). Specifically, the candidate frequency domain resources used in each available time unit can be determined based on the above formula 9. Among them, the first candidate frequency domain resource selected by UE1 during initialization is CH0, the first candidate frequency domain resource selected by UE2 during initialization is CH5, the first candidate frequency domain resource selected by UE3 during initialization is CH15, and the first candidate frequency domain resource selected by UE4 during initialization is CH11.

[0246] In some embodiments, in F (i) Given the available candidate frequency domain resources for this AMP device, let F (r) =F (i) The available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula 10:

[0247] F (r+1) =F (r) +(-1) init *(-1) S ΔF Formula 10

[0248] If F (r+1) For the candidate frequency domain resources available for this AMP device, then F (i+1) =F (r+1) ;

[0249] If F (r+1) For candidate frequency domain resources that are unavailable for this AMP device, let r = r + 1, and perform F based on the updated r. (r+1) Calculation;

[0250] Among them, F (i+1) F represents the number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) This indicates the number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit. The value of init is 0 or 1, and ΔF represents the frequency hopping interval.

[0251] Within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device, the initial value of S is 0, and in F (i) +(-1) init *(-1) S ΔF <p k or F (i) +(-1) init *(-1) S ΔF>q k In the case of S = S + 1, and F is performed based on the updated S. (i+1) The calculation of p k q represents the smallest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device. k This represents the largest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device;

[0252] Among them, F (i) and F (i+1) Satisfy: p k ≤F (i) ≤q k， p k ≤F (i+1) ≤q k .

[0253] It should be noted that simple modifications can be made to the above formula 10, and the modified formula also falls within the protection scope of this application.

[0254] Specifically, in practical applications, for all candidate frequency domain resources (e.g., channels) within the deployment frequency band, not all candidate frequency domain resources (e.g., channels) may be allocated to a single AMP device. That is, the candidate frequency domain resources that the AMP device can use are only a portion of the total system resources. When the candidate frequency domain resources determined based on Formula 10 above are unavailable, the selection of subsequent candidate frequency domain resources continues iteratively based on Formula 10 until an available candidate frequency domain resource is selected.

[0255] In some embodiments, in formulas 7 to 10 above, when S = S + 1 and there are multiple preset frequency hopping intervals, the AMP device selects a frequency hopping interval from the multiple preset frequency hopping intervals based on a preset order. Optionally, the preset order and the multiple preset frequency hopping intervals adopt the same configuration method, for example, both are protocol-defined parameters, or both are network configuration parameters.

[0256] Specifically, for example, the preset order can be an order of frequency hopping intervals from smallest to largest, or an order of frequency hopping intervals from largest to smallest, or an order of frequency hopping interval numbers from smallest to largest, or an order of frequency hopping interval numbers from largest to smallest, or other orders.

[0257] In some embodiments, when the AMP device has multiple candidate frequency domain resources for transmitting reference signals in the same available time unit, the j-th candidate frequency domain resource used by the AMP device in the (i+1)-th available time unit is determined based on at least one of the following:

[0258] The j-th candidate frequency domain resource used by the AMP device in the i-th available time unit, the frequency hopping interval associated with the j-th candidate frequency domain resource, the total number of candidate frequency domain resources in the deployment frequency band corresponding to the AMP device, the smallest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and the largest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device.

[0259] Where j is a positive integer.

[0260] In some embodiments, the AMP device uses multiple candidate frequency domain resources for transmitting reference signals in the same available time unit as continuous frequency domain resources, or the AMP device uses multiple candidate frequency domain resources for transmitting reference signals in the same available time unit as non-contiguous frequency domain resources.

[0261] Specifically, multiple candidate frequency domain resources used for transmitting reference signals on the same available time unit can be referred to as a bound candidate frequency domain resource set.

[0262] In some embodiments, the frequency hopping interval associated with the j-th candidate frequency domain resource is a fixed value. For example, the frequency hopping interval associated with the j-th candidate frequency domain resource is fixed to one or more candidate frequency domain resources.

[0263] In some embodiments, the frequency hopping interval associated with the j-th candidate frequency domain resource is selected cyclically from a plurality of preset frequency hopping intervals in a second order. Optionally, the second order is agreed upon by a protocol, or the second order is configured by the network (it may be semi-statically configured or dynamically configured).

[0264] For example, the following four frequency hopping intervals (ΔF) are pre-configured: ΔF1, ΔF2, ΔF3, and ΔF4. That is, multiple preset frequency hopping intervals are ΔF1, ΔF2, ΔF3, and ΔF4. When performing frequency hopping, the frequency hopping interval associated with the j-th candidate frequency domain resource is selected in sequence according to [ΔF1=>ΔF2=>ΔF3=>ΔF4=>ΔF1….].

[0265] In some embodiments, the frequency hopping interval associated with the j-th candidate frequency domain resource is determined from a plurality of preset frequency hopping intervals based on the value of i. For example, assuming the number of preset frequency hopping intervals is L, the frequency hopping interval used by imod L is determined based on the following formula, where mod represents the modulo operation. For example, when i mod L = y1, ΔF1 is selected, and when i mod L = y2, ΔF2 is selected; where y1 and y2 are used as examples, and y3, y4, etc., are possible, without limitation. Furthermore, y1 / y2, etc., can be a single value or a set of multiple values.

[0266] In some embodiments, the frequency hopping interval associated with the j-th candidate frequency domain resource is determined from a plurality of preset frequency hopping intervals based on the number value of the j-th candidate frequency domain resource used on the ith available time unit. For example, assuming the number of preset frequency hopping intervals is L, the frequency hopping interval used is determined based on the following formula: y mod L, where y is the number value of the frequency domain resource used on the ith available time unit, and mod represents the modulo operation.

[0267] In some embodiments, the values ​​of the plurality of preset frequency hopping intervals can be positive and / or negative. For example, when there are multiple ΔF, the values ​​can be "+" and "-", such as +2 and -2 can be used as two different values.

[0268] In some embodiments, the frequency hopping interval may also be referred to as the interval between candidate frequency domain resources (e.g., channels) on two adjacent available time units.

[0269] In some embodiments, the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit is determined based on the following formula 11:

[0270] F (i+1)_j =(F (i)_j +ΔF′)mod M Formula 11

[0271] Among them, F (i+1)_j F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i)_jΔF′ represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit, ΔF′ represents the frequency hopping interval associated with the j-th candidate frequency domain resource, and M represents the total number of candidate frequency domain resources in the deployment frequency band corresponding to the AMP device.

[0272] It should be noted that simple modifications can be made to the above formula 11, and the modified formula also falls within the protection scope of this application.

[0273] For example, assuming the candidate frequency domain resource is a channel (CH), and the deployment frequency band corresponding to the AMP device is 5MHz (920~925MHz), the 5MHz (920~925MHz) system bandwidth is divided into 20 channels with a bandwidth of 250kHz, i.e., M=20. Figure 13 As shown, the AMP device is UE1, which transmits reference signals (referred to as UE1PRS1) on CH0 and CH2 in the first available time unit; it transmits reference signals (referred to as UE1PRS2) on CH8 and CH10 in the second available time unit, where CH8 is calculated by substituting CH0 into Formula 11, and CH10 is calculated by substituting CH2 into Formula 11; it transmits reference signals (referred to as UE1PRS3) on CH16 and CH18 in the third available time unit, where CH16 is calculated by substituting CH8 into Formula 11, and CH18 is calculated by substituting CH10 into Formula 11; and it transmits reference signals (referred to as UE1PRS4) on CH4 and CH6 in the fourth available time unit, where CH4 is calculated by substituting CH16 into Formula 11. CH16 is calculated by substituting CH18 into Formula 11; Reference signals (which can be called UE1PRS5) are transmitted on CH12 and CH14 in the fifth available time unit, where CH12 is calculated by substituting CH4 into Formula 11 and CH14 is calculated by substituting CH6 into Formula 11; Reference signals (which can be called UE1PRS6) are transmitted on CH0 and CH2 in the sixth available time unit, where CH0 is calculated by substituting CH12 into Formula 11 and CH2 is calculated by substituting CH14 into Formula 11; Reference signals (which can be called UE1PRS7) are transmitted on CH8 and CH10 in the seventh available time unit, where CH8 is calculated by substituting CH0 into Formula 11 and CH10 is calculated by substituting CH2 into Formula 11.

[0274] In some embodiments, the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit is determined based on the following formula 12:

[0275] F (i+1)_j =(F(i)_j +ΔF′)mod(q+1)+p Formula 12

[0276] Among them, F (i+1)_j F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i)_j ΔF′ represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit, ΔF′ represents the frequency hopping interval associated with the j-th candidate frequency domain resource, p represents the smallest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and q represents the largest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device.

[0277] Among them, F (i)_j and F (i+1)_j Satisfying: p≤F (i)_j ≤q, p≤F (i+1)_j ≤q.

[0278] In some embodiments, the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit is determined based on the following formula 13:

[0279] F (i+1)_j =(F (i)_j +ΔF′)mod(q k +1)+p k Formula 13

[0280] Among them, F (i+1)_j F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i)_j This represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit, ΔF′ represents the frequency hopping interval associated with the j-th candidate frequency domain resource, and p k q represents the smallest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device. k This represents the largest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device;

[0281] Among them, F (i)_j and F (i+1)_j Satisfy: p k ≤F (i)_j ≤q k， p k ≤F (i+1)_j ≤q k .

[0282] In some embodiments, the j-th used candidate frequency domain resource of the AMP device on the (i+1)-th available time unit is determined based on the following Formula 14:

[0283] F (i+1)_j =F (i)_j +(-1) init *(-1) S ΔF′ Formula 14

[0284] wherein, F (i+1)_j represents the number of the j-th used candidate frequency domain resource of the AMP device on the (i+1)-th available time unit, F (i)_j represents the number of the j-th used candidate frequency domain resource of the AMP device on the i-th available time unit, init takes a value of 0 or 1, and ΔF′ represents the frequency hopping interval associated with the j-th candidate frequency domain resource;

[0285] wherein, the initial value of S is 0, when F (i)_j +(-1) init *(-1) S ΔF′<p or F (i)_j +(-1) init *(-1) S ΔF′>q, S=S+1, and F (i+1)_j is calculated based on the updated S, p represents the minimum candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and q represents the maximum candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device;

[0286] wherein, F (i)_j and F (i+1)_j satisfy: p≤F (i)_j ≤q, p≤F (i+1)_j ≤q.

[0287] In some embodiments, the j-th used candidate frequency domain resource of the AMP device on the (i+1)-th available time unit is determined based on the following Formula 15:

[0288] F (i+1)_j =F (i)_j +(-1) init *(-1) S ΔF′ Formula 15

[0289] wherein, F (i+1)_j represents the number of the j-th used candidate frequency domain resource of the AMP device on the (i+1)-th available time unit, F (i)_jThis indicates the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit. The value of init is 0 or 1, and ΔF′ represents the frequency hopping interval associated with the j-th candidate frequency domain resource.

[0290] Within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device, the initial value of S is 0, and in F (i)_j +(-1) init *(-1) S ΔF′ <p k or F (i)_j +(-1) init *(-1) S ΔF′>q k In the case of S = S + 1, and F is performed based on the updated S. (i+1)_j The calculation of p k q represents the smallest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device. k This represents the largest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device;

[0291] Among them, F (i)_j and F (i+1)_j Satisfy: p k ≤F (i)_j ≤q k， p k ≤F (i+1)_j ≤q k .

[0292] In some embodiments, in formulas 14 and 15 above, when S = S + 1 and there are multiple preset frequency hopping intervals, the AMP device selects a frequency hopping interval from the multiple preset frequency hopping intervals based on a preset order. Optionally, the preset order and the multiple preset frequency hopping intervals adopt the same configuration method, for example, both are protocol-defined parameters, or both are network configuration parameters.

[0293] Specifically, for example, the preset order can be an order of frequency hopping intervals from smallest to largest, or an order of frequency hopping intervals from largest to smallest, or an order of frequency hopping interval numbers from smallest to largest, or an order of frequency hopping interval numbers from largest to smallest, or other orders.

[0294] It should be noted that simple modifications can be made to the above formulas 11 to 15, and the modified formulas also fall within the scope of protection of this application.

[0295] In some embodiments, when the number of candidate frequency domain resources for transmitting a reference signal by the AMP device in the same available time unit is one, the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on at least one of the following:

[0296] The available candidate frequency domain resources used by the AMP device in the i-th available time unit, the frequency hopping interval, the total number of candidate frequency domain resources available to the AMP device in its corresponding deployment frequency band, the smallest relative number of the candidate frequency domain resource available to the AMP device in its corresponding deployment frequency band, and the largest relative number of the candidate frequency domain resource available to the AMP device in its corresponding deployment frequency band.

[0297] Specifically, in practical applications, for all candidate frequency domain resources (e.g., channels) within the deployment frequency band, not all candidate frequency domain resources (e.g., channels) may be allocated to a single AMP device. That is, the candidate frequency domain resources usable by the AMP device are only a portion of the total system resources. The relative number (e.g., relative channel (RCH)) of each available candidate frequency domain resource can be obtained based on the actual candidate frequency domain resources usable by the AMP device. Specifically, assuming the candidate frequency domain resource is a channel (CH), and the deployment frequency band corresponding to the AMP device is 5MHz (920–925MHz), the 5MHz (920–925MHz) system bandwidth is divided into 20 channels with a bandwidth of 250kHz, such as… Figure 14 As shown, CH2, CH3, CH8, CH9, CH10, CH11, CH12, CH13, CH17, CH18 and CH19 are channels that are unavailable to the AMP device. Based on the candidate frequency domain resources that the AMP device can actually use (i.e. CH0, CH1, CH4, CH5, CH6, CH7, CH14, CH15 and CH16), the relative number of each available candidate frequency domain resource (i.e. RCH0 to RCH8) is obtained.

[0298] Specifically, the unit of the frequency hopping interval can be candidate frequency domain resources. Of course, the unit of the frequency hopping interval can also be other frequency domain resources, and this application embodiment is not limited to this.

[0299] In some embodiments, the frequency hopping interval is a fixed value, or the frequency hopping interval is cyclically selected from a plurality of preset frequency hopping intervals in a first order, or the frequency hopping interval is determined from a plurality of preset frequency hopping intervals based on the value of i, or the frequency hopping interval is determined from a plurality of preset frequency hopping intervals based on the relative number of the available candidate frequency domain resources used on the i-th available time unit.

[0300] In some embodiments, the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula 16:

[0301] F (i+1) =(F (i) Formula 16

[0302] Among them, F (i+1) F represents the relative number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) ΔF represents the relative number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit, ΔF represents the frequency hopping interval, and M′ represents the total number of candidate frequency domain resources available to the AMP device in its corresponding deployment frequency band.

[0303] In some embodiments, the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula 17:

[0304] F (i+1) =(F (i) +ΔF)mod(q′+1)+p′ Formula 17

[0305] Among them, F (i+1) F represents the relative number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) ΔF represents the relative number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit, ΔF represents the frequency hopping interval, p′ represents the smallest relative number of the candidate frequency domain resources available to the AMP device in its corresponding deployment frequency band, and q′ represents the largest relative number of the candidate frequency domain resources available to the AMP device in its corresponding deployment frequency band.

[0306] Among them, F (i) and F (i+1) Satisfying: p′≤F (i) ≤q′,p′≤F (i+1) ≤q′.

[0307] In some embodiments, the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula 18:

[0308] F (i+1) =(F (i) +ΔF)mod(q k ′+1)+p k ′ Formula 18

[0309] Among them, F (i+1)represents the relative number of the available candidate frequency-domain resource used by the AMP device on the (i+1)-th available time unit, F (i) represents the relative number of the available candidate frequency-domain resource used by the AMP device on the i-th available time unit, ΔF represents the frequency hopping interval, p k ' represents the relative number of the smallest available candidate frequency-domain resource in the candidate frequency-domain resource set k associated with the AMP device within the deployment frequency band corresponding to the AMP device, q k ' represents the relative number of the largest available candidate frequency-domain resource in the candidate frequency-domain resource set k associated with the AMP device within the deployment frequency band corresponding to the AMP device;

[0310] wherein, F (i) and F (i+1) satisfy: p k '≤F (i) ≤q k ', p k '≤F (i+1) ≤q k '.

[0311] In some embodiments, the available candidate frequency-domain resource used by the AMP device on the (i+1)-th available time unit is determined based on the following formula 19:

[0312] F (i+1) =F (i) +(-1) init *(-1) S ΔF Formula 19

[0313] wherein, F (i+1) represents the relative number of the available candidate frequency-domain resource used by the AMP device on the (i+1)-th available time unit, F (i) represents the relative number of the available candidate frequency-domain resource used by the AMP device on the i-th available time unit, init has a value of 0 or 1, and ΔF represents the frequency hopping interval;

[0314] wherein, the initial value of S is 0, when F (i) +(-1) init *(-1) S ΔF < p' or F (i) +(-1) init *(-1) S ΔF > q', S = S+1, and F (i+1) is calculated based on the updated S, p' represents the relative number of the smallest available candidate frequency-domain resource within the deployment frequency band corresponding to the AMP device, and q' represents the relative number of the largest available candidate frequency-domain resource within the deployment frequency band corresponding to the AMP device;

[0315] Among them, F (i) and F (i+1) Satisfying: p′≤F (i) ≤q′,p′≤F (i+1) ≤q′.

[0316] In some embodiments, the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula 20:

[0317] F (i+1) =F (i) +(-1) init *(-1) S ΔF Formula 20

[0318] Among them, F (i+1) This represents the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. relatively Number, F (i) This indicates the relative number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit. The value of init is 0 or 1, and ΔF represents the frequency hopping interval.

[0319] Within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device, the initial value of S is 0, and in F (i) +(-1) init *(-1) S ΔF <p k ′ or F (i) +(-1) init *(-1) S ΔF>q k In the case of S = S + 1, and F is performed based on the updated S. (i+1) The calculation of p k ' represents the smallest available candidate frequency domain resource relative number within the candidate frequency domain resource set k associated with the AMP device, q k ′ represents the relative number of the largest available candidate frequency domain resource within the candidate frequency domain resource set k associated with the AMP device;

[0320] Among them, F (i) and F (i+1) Satisfy: p k ′≤F (i) ≤q k ′, p k ′≤F (i+1) ≤q k ′.

[0321] In some embodiments, in formulas 16 and 20 above, when S = S + 1 and there are multiple preset frequency hopping intervals, the AMP device selects a frequency hopping interval from the multiple preset frequency hopping intervals based on a preset order. Optionally, the preset order and the multiple preset frequency hopping intervals adopt the same configuration method, for example, both are protocol-defined parameters, or both are network configuration parameters.

[0322] Specifically, for example, the preset order can be an order of frequency hopping intervals from smallest to largest, or an order of frequency hopping intervals from largest to smallest, or an order of frequency hopping interval numbers from smallest to largest, or an order of frequency hopping interval numbers from largest to smallest, or other orders.

[0323] It should be noted that simple modifications can be made to the above formulas 16 to 20, and the modified formulas also fall within the scope of protection of this application.

[0324] In some embodiments, the candidate frequency domain resources available to the AMP device in its corresponding deployment frequency band are configured by the network; or, the candidate frequency domain resources available to the AMP device in its corresponding deployment frequency band are preempted and shared by the network device with the AMP device; or, the candidate frequency domain resources available to the AMP device in its corresponding deployment frequency band are preempted by the AMP device.

[0325] In some embodiments, in Formulas 7 to 10, 14, 15, 19 and 20 above, the value of init (0 or 1) is randomly determined by the AMP device, or the value of init is determined by the network configuration (dynamic configuration / semi-static configuration), or the value of init is determined based on the position of the first candidate frequency domain resource selected during initialization (e.g., if the position of the first candidate frequency domain resource is less than a threshold, then init = 0; otherwise, init = 1), or the value of init is determined based on the identifier of the AMP device and / or the identifier of the receiving device (i.e., the communication device).

[0326] In some embodiments, the candidate frequency domain resource set k associated with the AMP device is the candidate frequency domain resource set configured or indicated by the network among multiple candidate frequency domain resource sets within the deployment frequency band corresponding to the AMP device.

[0327] In some embodiments, the candidate frequency domain resource set k associated with the AMP device is determined from multiple candidate frequency domain resource sets within the deployment frequency band corresponding to the AMP device, based on the identifier of the AMP device and / or the group identifier to which the AMP device belongs. For example, assuming the number of multiple candidate frequency domain resource sets is V, the candidate frequency domain resource set k is determined based on the following formula: ID mod V or Group_ID mod V, where mod represents the modulo operation. For example, when ID mod V = z1, the first candidate frequency domain resource set is selected; when ID mod V = z2, the second candidate frequency domain resource set is selected, and so on; where z1 and z2 are used as examples, there can be z3, z4, etc., which are not limited here. At the same time, z1 / z2, etc. can be a single value or a set of multiple values.

[0328] In some embodiments, the candidate frequency domain resource set k associated with the AMP device is determined from multiple candidate frequency domain resource sets within the deployment frequency band corresponding to the AMP device based on the number of the first candidate frequency domain resource selected during the initialization of the AMP device. For example, if the number of the first candidate frequency domain resource selected during the initialization of the AMP device is located in candidate frequency domain resource set 0, then the candidate frequency domain resource set associated with the AMP device is candidate frequency domain resource set 0; if the number of the first candidate frequency domain resource selected during the initialization of the AMP device is located in candidate frequency domain resource set 1, then the candidate frequency domain resource set associated with the AMP device is candidate frequency domain resource set 1; and so on.

[0329] In some embodiments, the first candidate frequency domain resource selected by the AMP device during initialization is randomly selected, or the first candidate frequency domain resource selected by the AMP device during initialization is configured by the network, or the first candidate frequency domain resource selected by the AMP device during initialization is determined based on the identifier of the AMP device and / or the identifier of the peer device.

[0330] For example, the first candidate frequency domain resource selected during AMP device initialization is based on the association between the identifier of the AMP device and / or the identifier of the peer device (i.e., the identifier of the communication device). The first candidate frequency domain resource selected during AMP device initialization is determined based on the following formula: ID mod(q+1)+p; where p represents the smallest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and q represents the largest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device.

[0331] In some embodiments, the N candidate frequency domain resources are determined based on at least one frequency hopping pattern. Optionally, the at least one frequency hopping pattern is agreed upon by a protocol, or the at least one frequency hopping pattern is configured by the network (dynamic configuration / semi-static configuration).

[0332] Specifically, for example, a network device can indicate the N candidate frequency domain resources through a bitmap. For instance, there are a total of 10 available candidate frequency domain resources, with each bit corresponding to one available candidate frequency domain resource. The AMP device performs frequency hopping on these frequency domain resources according to preset rules, such as from low to high, or from high to low, or the network device configures / the AMP device determines the first frequency domain resource to be used, and then the frequency domain resources are used in a cyclical manner (for example, if the network device indicates that CH1 / CH4 / CH6 / CH9 / CH15 is used, and the AMP device can determine that CH6 is used first, then the frequency hopping is performed in the order of CH6=>CH9=>CH15=>CH1=>CH4).

[0333] Optionally, the N candidate frequency domain resources can be determined based on a combination of multiple semi-statically configured frequency hopping patterns, with the network device indicating the configured frequency hopping pattern index.

[0334] In this embodiment of the application, to verify the impact of frequency hopping distance on the propagation time (e.g., time of arrival (TOA)) / propagation distance estimation performance, TOA estimation under reference signals with different hopping frequencies can be simulated, and the error statistics of TOA estimation can be plotted as follows: Figure 15 and Figure 16 The cumulative distribution function (CDF) curve is shown. Simulation results show that compared to intra-channel frequency hopping with a smaller hopping distance, inter-channel frequency hopping with a larger hopping distance significantly improves TOA estimation performance. This verifies the advantages of frequency domain frequency hopping (such as inter-channel frequency hopping) in the embodiments of this application. The horizontal axis represents the difference between the measured TOA and the actual TOA; absolute values ​​were not taken in the simulation, so the results can be positive or negative. The vertical axis represents the cumulative probability value. Specifically, in... Figure 15 In this example, frequency hopping is performed within the channel, with a hopping distance of 40 subcarriers (150kHz), which is very close to the bandwidth of the Physical Random Access Channel (PRACH) (48 subcarriers). It can be seen that under the in-channel frequency hopping scheme, the propagation time (TOA) estimation error is approximately 12ns (corresponding to the values ​​at the 5% and 95% points, indicating that the performance is better than 12ns in the middle 90% of cases), corresponding to a distance error of 3.6m. Figure 16 In this process, frequency hopping is performed between channels with a hopping distance of 4MHz. The propagation time (TOA) estimation error is approximately 2.2ns, corresponding to a distance error of 0.7m.

[0335] Therefore, in the embodiments of this application, the communication device can determine the location of the AMP device based on the reference signals transmitted on N candidate frequency domain resources, or the communication device can determine the location of the receiving end device (i.e., the communication device) of the reference signal based on the reference signals transmitted on N candidate frequency domain resources; and / or, the communication device can determine the distance between the AMP device and the receiving end device (i.e., the communication device) of the reference signal based on the reference signals transmitted on N candidate frequency domain resources.

[0336] The above text combined Figures 7 to 16 The method embodiments of this application are described in detail below, in conjunction with... Figures 17 to 21 The present application describes the device embodiments in detail. It should be understood that the device embodiments correspond to the method embodiments, and similar descriptions can be referred to the method embodiments.

[0337] Figure 17 A schematic block diagram of an environmental energy AMP device 300 according to an embodiment of this application is shown. Figure 17 As shown, the AMP device 300 includes:

[0338] Communication unit 310 is used to transmit reference signals on N candidate frequency domain resources;

[0339] Wherein, the reference signals transmitted on the N candidate frequency domain resources are used to determine the location of the AMP device or the receiving device of the reference signal, and / or, the reference signals transmitted on the N candidate frequency domain resources are used to determine the distance between the AMP device and the receiving device of the reference signal, where N is a positive integer and N≥2.

[0340] In some embodiments, the AMP device may have one or more candidate frequency domain resources for transmitting reference signals on the same available time unit.

[0341] In some embodiments, the candidate frequency domain resources for transmitting the reference signal in the i-th available time unit are different from the candidate frequency domain resources for transmitting the reference signal in the (i+1)-th available time unit, where i is an integer greater than or equal to 0.

[0342] In some embodiments, the interval between the candidate frequency domain resources for transmitting the reference signal in the i-th available time unit and the candidate frequency domain resources for transmitting the reference signal in the (i+1)-th available time unit is greater than or equal to X frequency domain units, where X is a positive integer.

[0343] In some embodiments, the frequency domain unit is one of the following: candidate frequency domain resource, channel, system bandwidth, carrier, subcarrier, physical resource block (PRB), bandwidth portion (BWP), megahertz (MHz), kilohertz (kHz), hertz (Hz).

[0344] In some embodiments, when the number of candidate frequency domain resources used by the AMP device for transmitting reference signals in the same available time unit is one, the candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on at least one of the following:

[0345] The candidate frequency domain resources used by the AMP device in the i-th available time unit, the frequency hopping interval, the total number of candidate frequency domain resources in the deployment frequency band corresponding to the AMP device, the smallest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and the largest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device.

[0346] In some embodiments, the frequency hopping interval is a fixed value, or the frequency hopping interval is cyclically selected from a plurality of preset frequency hopping intervals in a first order, or the frequency hopping interval is determined from a plurality of preset frequency hopping intervals based on the value of i, or the frequency hopping interval is determined from a plurality of preset frequency hopping intervals based on the number of the frequency domain resource used on the i-th available time unit.

[0347] In some embodiments, the candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula:

[0348] F (i+1) =(F (i) +ΔF)mod M;

[0349] Among them, F (i+1) F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i) ΔF represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit, ΔF represents the frequency hopping interval, and M represents the total number of candidate frequency domain resources in the deployment frequency band corresponding to the AMP device.

[0350] In some embodiments, in F (i) In the case of candidate frequency domain resources available for the AMP device, let F (r) =F (i) The available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula:

[0351] F (r+1) =(F (r) +ΔF)mod M;

[0352] If F (r+1) For the candidate frequency domain resources available for the AMP device, then F (i+1) =F (r+1) ;

[0353] If F (r+1) For candidate frequency domain resources that are unavailable for the AMP device, let r = r + 1, and perform F based on the updated r. (r+1) Calculation;

[0354] Among them, F (i+1) F represents the number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) ΔF represents the number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit, ΔF represents the frequency hopping interval, and M represents the total number of candidate frequency domain resources in the deployment frequency band corresponding to the AMP device.

[0355] In some embodiments, the candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula:

[0356] F (i+1) =(F (i) +ΔF)mod(q+1)+p;

[0357] Among them, F (i+1) F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i) ΔF represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit, p represents the smallest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and q represents the largest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device.

[0358] Among them, F (i) and F (i+1) Satisfying: p≤F (i) ≤q, p≤F (i+1) ≤q.

[0359] In some embodiments, in F (i) In the case of candidate frequency domain resources available for the AMP device, let F (r) =F (i) The available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula:

[0360] F (r+1) =(F (r) +ΔF)mod(q+1)+p;

[0361] If F (r+1) For the candidate frequency domain resources available for the AMP device, then F (i+1) =F(r+1) ;

[0362] If F (r+1) For candidate frequency domain resources that are unavailable for the AMP device, let r = r + 1, and perform F based on the updated r. (r+1) Calculation;

[0363] Among them, F (i+1) F represents the number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) ΔF represents the number of the available candidate frequency domain resource used by the AMP device in the i-th available time unit, p represents the smallest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and q represents the largest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device.

[0364] Among them, F (i) and F (i+1) Satisfying: p≤F (i) ≤q, p≤F (i+1) ≤q.

[0365] In some embodiments, the candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula:

[0366] F (i+1) =(F (i) +ΔF)mod(q k +1)+p k ;

[0367] Among them, F (i+1) F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i) This represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit, ΔF represents the frequency hopping interval, and p k q represents the smallest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device. k This represents the largest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device;

[0368] Among them, F (i) and F (i+1) Satisfy: p k ≤F (i) ≤q k， p k ≤F (i+1) ≤q k .

[0369] In some embodiments, in F (i) In the case of candidate frequency domain resources available for the AMP device, let F (r) =F (i) The available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula:

[0370] F (r+1) =(F (r) +ΔF)mod(q k +1)+p k ;

[0371] If F (r+1) For the candidate frequency domain resources available for the AMP device, then F (i+1) =F (r+1) ;

[0372] If F (r+1) For candidate frequency domain resources that are unavailable for the AMP device, let r = r + 1, and perform F based on the updated r. (r+1) Calculation;

[0373] Among them, F (i+1) F represents the number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) This represents the number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit, ΔF represents the frequency hopping interval, and p k q represents the smallest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device. k This represents the largest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device;

[0374] Among them, F (i) and F (i+1) Satisfy: p k ≤F (i) ≤q k， p k ≤F (i+1) ≤q k .

[0375] In some embodiments, the candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula:

[0376] F (i+1) =F (i) +(-1) init *(-1)S ΔF;

[0377] wherein, F (i+1) represents the number of the candidate frequency-domain resource used by the AMP apparatus on the (i+1)-th available time unit, and F (i) represents the number of the candidate frequency-domain resource used by the AMP apparatus on the i-th available time unit, init takes a value of 0 or 1, and ΔF represents a frequency hopping interval;

[0378] wherein, the initial value of S is 0, when F (i) +(-1) init *(-1) S ΔF<p or F (i) +(-1) init *(-1) S ΔF>q, S=S+1, and F (i+1) is calculated based on the updated S, p represents the minimum candidate frequency-domain resource number within the deployment frequency band corresponding to the AMP apparatus, and q represents the maximum candidate frequency-domain resource number within the deployment frequency band corresponding to the AMP apparatus;

[0379] wherein, F (i) and F (i+1) satisfy: p≤F (i) ≤q, p≤F (i+1) ≤q.

[0380] In some embodiments, when F (i) is an available candidate frequency-domain resource of the AMP apparatus, let F (r) =F (i) , and the available candidate frequency-domain resource used by the AMP apparatus on the (i+1)-th available time unit is determined based on the following formula:

[0381] F (r+1) =F (r) +(-1) init *(-1) S ΔF;

[0382] if F (r+1) is an available candidate frequency-domain resource of the AMP apparatus, then F (i+1) =F (r+1) ;

[0383] if F (r+1) is an unavailable candidate frequency-domain resource of the AMP apparatus, let r=r+1, and calculate F (r+1) based on the updated r;

[0384] wherein, F (i+1)represents the number of the available candidate frequency domain resource used by the AMP device on the (i+1)-th available time unit, F (i) represents the number of the available candidate frequency domain resource used by the AMP device on the i-th available time unit, init takes a value of 0 or 1, and ΔF represents the frequency hopping interval;

[0385] wherein the initial value of S is 0, when F (i) +(-1) init *(-1) S ΔF<p or F (i) +(-1) init *(-1) S ΔF>q, S = S+1, and F is calculated based on the updated S (i+1) , p represents the minimum candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and q represents the maximum candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device;

[0386] wherein, F (i) and F (i+1) satisfy: p≤F (i) ≤q, p≤F (i+1) ≤q.

[0387] In some embodiments, the candidate frequency domain resource used by the AMP device on the (i+1)-th available time unit is determined based on the following formula:

[0388] F (i+1) =F (i) +(-1) init *(-1) S ΔF;

[0389] wherein, F (i+1) represents the number of the candidate frequency domain resource used by the AMP device on the (i+1)-th available time unit, F (i) represents the number of the candidate frequency domain resource used by the AMP device on the i-th available time unit, init takes a value of 0 or 1, and ΔF represents the frequency hopping interval;

[0390] wherein, within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device, the initial value of S is 0, when F (i) +(-1) init *(-1) S ΔF<p k or F (i) +(-1) init *(-1) S ΔF>q kIn the case of S = S + 1, and F is performed based on the updated S. (i+1) The calculation of p k q represents the smallest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device. k This represents the largest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device;

[0391] Among them, F (i) and F (i+1) Satisfy: p k ≤F (i) ≤q k， p k ≤F (i+1) ≤q k .

[0392] In some embodiments, in F (i) In the case of candidate frequency domain resources available for the AMP device, let F (r) =F (i) The available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula:

[0393] F (r+1) =F (r) +(-1) init *(-1) S ΔF;

[0394] If F (r+1) For the candidate frequency domain resources available for the AMP device, then F (i+1) =F (r+1) ;

[0395] If F (r+1) For candidate frequency domain resources that are unavailable for the AMP device, let r = r + 1, and perform F based on the updated r. (r+1) Calculation;

[0396] Among them, F (i+1) F represents the number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) This indicates the number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit. The value of init is 0 or 1, and ΔF represents the frequency hopping interval.

[0397] Wherein, within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device, the initial value of S is 0, and in F (i) +(-1) init *(-1) S ΔF <pk or F (i) +(-1) init *(-1) S ΔF>q k In the case of S = S + 1, and F is performed based on the updated S. (i+1) The calculation of p k q represents the smallest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device. k This represents the largest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device;

[0398] Among them, F (i) and F (i+1) Satisfy: p k ≤F (i) ≤q k， p k ≤F (i+1) ≤q k .

[0399] In some embodiments, when the number of candidate frequency domain resources for transmitting reference signals by the AMP device in the same available time unit is multiple, the j-th candidate frequency domain resource used by the AMP device in the (i+1)-th available time unit is determined based on at least one of the following:

[0400] The j-th candidate frequency domain resource used by the AMP device in the i-th available time unit, the frequency hopping interval associated with the j-th candidate frequency domain resource, the total number of candidate frequency domain resources in the deployment frequency band corresponding to the AMP device, the smallest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and the largest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device.

[0401] Where j is a positive integer.

[0402] In some embodiments, the frequency hopping interval associated with the j-th candidate frequency domain resource is a fixed value; or, the frequency hopping interval associated with the j-th candidate frequency domain resource is cyclically selected from a plurality of preset frequency hopping intervals in a second order; or, the frequency hopping interval associated with the j-th candidate frequency domain resource is determined from a plurality of preset frequency hopping intervals based on the value of i; or, the frequency hopping interval associated with the j-th candidate frequency domain resource is determined from a plurality of preset frequency hopping intervals based on the number of the j-th candidate frequency domain resource used on the i-th available time unit.

[0403] In some embodiments, the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit is determined based on the following formula:

[0404] F(i+1)_j =(F (i)_j +ΔF′)mod M;

[0405] Among them, F (i+1)_j F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i)_j ΔF′ represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit, ΔF′ represents the frequency hopping interval associated with the j-th candidate frequency domain resource, and M represents the total number of candidate frequency domain resources in the deployment frequency band corresponding to the AMP device.

[0406] In some embodiments, the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit is determined based on the following formula:

[0407] F (i+1)_j =(F (i)_j +ΔF′)mod(q+1)+p;

[0408] Among them, F (i+1)_j F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i)_j ΔF′ represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit, ΔF′ represents the frequency hopping interval associated with the j-th candidate frequency domain resource, p represents the smallest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and q represents the largest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device.

[0409] Among them, F (i)_j and F (i+1)_j Satisfying: p≤F (i)_j ≤q, p≤F (i+1)_j ≤q.

[0410] In some embodiments, the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit is determined based on the following formula:

[0411] F (i+1)_j =(F (i)_j +ΔF′)mod(q k +1)+p k ;

[0412] Among them, F (i+1)_j F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i)_jrepresents the number of the j-th used candidate frequency domain resource of the AMP device on the i-th available time unit, ΔF' represents the frequency hopping interval associated with the j-th candidate frequency domain resource, p k represents the minimum candidate frequency domain resource number in the candidate frequency domain resource set k associated with the AMP device within the deployment frequency band corresponding to the AMP device, q k represents the maximum candidate frequency domain resource number in the candidate frequency domain resource set k associated with the AMP device within the deployment frequency band corresponding to the AMP device;

[0413] wherein, F (i)_j and F (i+1)_j satisfy: p k ≤F (i)_j ≤q k， p k ≤F (i+1)_j ≤q k .

[0414] In some embodiments, the j-th used candidate frequency domain resource of the AMP device on the (i+1)-th available time unit is determined based on the following formula:

[0415] F (i+1)_j =F (i)_j +(-1) init *(-1) S ΔF';

[0416] wherein, F (i+1)_j represents the number of the j-th used candidate frequency domain resource of the AMP device on the (i+1)-th available time unit, F (i)_j represents the number of the j-th used candidate frequency domain resource of the AMP device on the i-th available time unit, init is 0 or 1, and ΔF' represents the frequency hopping interval associated with the j-th candidate frequency domain resource;

[0417] wherein, the initial value of S is 0, when F (i)_j +(-1) init *(-1) S ΔF'<p or F (i)_j +(-1) init *(-1) S ΔF'>q, S = S + 1, and F (i+1)_j is calculated based on the updated S, p represents the minimum candidate frequency domain resource number within the deployment frequency band corresponding to the AMP device, and q represents the maximum candidate frequency domain resource number within the deployment frequency band corresponding to the AMP device;

[0418] wherein, F (i)_j and F (i+1)_j satisfy: p≤F(i)_j ≤q, p≤F (i+1)_j ≤q.

[0419] In some embodiments, the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit is determined based on the following formula:

[0420] F (i+1)_j =F (i)_j +(-1) init *(-1) S ΔF′;

[0421] Among them, F (i+1)_j F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i)_j The value of init represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit. The value of init is 0 or 1, and ΔF′ represents the frequency hopping interval associated with the j-th candidate frequency domain resource.

[0422] Wherein, within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device, the initial value of S is 0, and in F (i)_j +(-1) init *(-1) S ΔF′ <p k or F (i)_j +(-1) init *(-1) S ΔF′>q k In the case of S = S + 1, and F is performed based on the updated S. (i+1)_j The calculation of p k q represents the smallest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device. k This represents the largest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device;

[0423] Among them, F (i)_j and F (i+1)_j Satisfy: p k ≤F (i)_j ≤q k， p k ≤F (i+1)_j ≤q k .

[0424] In some embodiments, the multiple candidate frequency domain resources used by the AMP device for transmitting reference signals in the same available time unit are consecutive frequency domain resources, or the multiple candidate frequency domain resources used by the AMP device for transmitting reference signals in the same available time unit are non-consecutive frequency domain resources.

[0425] In some embodiments, when the number of candidate frequency domain resources for transmitting a reference signal by the AMP device in the same available time unit is one, the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on at least one of the following:

[0426] The available candidate frequency domain resources used by the AMP device in the i-th available time unit, the frequency hopping interval, the total number of candidate frequency domain resources available to the AMP device in its corresponding deployment frequency band, the smallest relative number of the candidate frequency domain resource available to the AMP device in its corresponding deployment frequency band, and the largest relative number of the candidate frequency domain resource available to the AMP device in its corresponding deployment frequency band.

[0427] In some embodiments, the frequency hopping interval is a fixed value, or the frequency hopping interval is cyclically selected from a plurality of preset frequency hopping intervals in a first order, or the frequency hopping interval is determined from a plurality of preset frequency hopping intervals based on the value of i, or the frequency hopping interval is determined from a plurality of preset frequency hopping intervals based on the relative number of the available candidate frequency domain resources used on the i-th available time unit.

[0428] In some embodiments, the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula:

[0429] F (i+1) =(F (i) +ΔF)mod M′;

[0430] Among them, F (i+1) F represents the relative number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) The relative number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit is represented, ΔF represents the frequency hopping interval, and M′ represents the total number of candidate frequency domain resources available to the AMP device in its corresponding deployment frequency band.

[0431] In some embodiments, the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula:

[0432] F (i+1) =(F (i) +ΔF)mod(q′+1)+p′;

[0433] Among them, F (i+1)F represents the relative number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) ΔF represents the relative number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit, p′ represents the smallest relative number of the candidate frequency domain resources available to the AMP device in its corresponding deployment frequency band, and q′ represents the largest relative number of the candidate frequency domain resources available to the AMP device in its corresponding deployment frequency band.

[0434] Among them, F (i) and F (i+1) Satisfying: p′≤F (i) ≤q′,p′≤F (i+1) ≤q′.

[0435] In some embodiments, the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula:

[0436] F (i+1) =(F (i) +ΔF)mod(q k ′+1)+p k ′;

[0437] Among them, F (i+1) F represents the relative number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) This represents the relative number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit, ΔF represents the frequency hopping interval, and p k ' represents the smallest available candidate frequency domain resource relative number within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device, q k ′ represents the relative number of the largest available candidate frequency domain resource within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device;

[0438] Among them, F (i) and F (i+1) Satisfy: p k ′≤F (i) ≤q k ′, p k ′≤F (i+1) ≤q k ′.

[0439] In some embodiments, the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula:

[0440] F(i+1) =F (i) +(-1) init *(-1) S ΔF;

[0441] wherein, F (i+1) represents a relative number of an available candidate frequency domain resource used by the AMP device on the (i+1)th available time unit, F (i) represents a relative number of an available candidate frequency domain resource used by the AMP device on the ith available time unit, init has a value of 0 or 1, and ΔF represents a frequency hopping interval;

[0442] wherein, an initial value of S is 0, when F (i) +(-1) init *(-1) S ΔF < p' or F (i) +(-1) init *(-1) S ΔF > q', S = S+1, and calculation of F (i+1) is performed based on the updated S, p' represents a minimum relative number of candidate frequency domain resources available to the AMP device within a corresponding deployment frequency band thereof, and q' represents a maximum relative number of candidate frequency domain resources available to the AMP device within the corresponding deployment frequency band thereof;

[0443] wherein, F (i) and F (i+1) satisfy: p' ≤ F (i) ≤ q', p' ≤ F (i+1) ≤ q'.

[0444] In some embodiments, the available candidate frequency domain resource used by the AMP device on the (i+1)th available time unit is determined based on the following formula:

[0445] F (i+1) =F (i) +(-1) init *(-1) S ΔF;

[0446] wherein, F (i+1) represents a relative number of an available candidate frequency domain resource used by the AMP device on the (i+1)th available time unit, F (i) represents a relative number of an available candidate frequency domain resource used by the AMP device on the ith available time unit, init has a value of 0 or 1, and ΔF represents a frequency hopping interval;

[0447] wherein, within a candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device, an initial value of S is 0, when F(i) +(-1) init *(-1) S ΔF <p k ′ or F (i) +(-1) init *(-1) S ΔF>q k In the case of S = S + 1, and F is performed based on the updated S. (i+1) The calculation of p k ' represents the smallest available candidate frequency domain resource relative number within the candidate frequency domain resource set k associated with the AMP device, q k ′ represents the relative number of the largest available candidate frequency domain resource within the candidate frequency domain resource set k associated with the AMP device;

[0448] Among them, F (i) and F (i+1) Satisfy: p k ′≤F (i) ≤q k ′, p k ′≤F (i+1) ≤q k ′.

[0449] In some embodiments, the candidate frequency domain resources available to the AMP device in its corresponding deployment frequency band are configured by the network; or, the candidate frequency domain resources available to the AMP device in its corresponding deployment frequency band are preempted and shared by the network device with the AMP device; or, the candidate frequency domain resources available to the AMP device in its corresponding deployment frequency band are preempted by the AMP device.

[0450] In some embodiments, the value of init is randomly determined by the AMP device, or the value of init is determined by network configuration, or the value of init is determined based on the location of the first candidate frequency domain resource selected during initialization, or the value of init is determined based on the identifier of the AMP device and / or the identifier of the receiving device.

[0451] In some embodiments, the AMP device 300 further includes a processing unit 320;

[0452] When S = S + 1 and there are multiple preset frequency hopping intervals, the processing unit 320 is used to select a frequency hopping interval from the multiple preset frequency hopping intervals based on a preset order.

[0453] In some embodiments, the candidate frequency domain resource set k associated with the AMP device is a candidate frequency domain resource set configured or indicated by the network among multiple candidate frequency domain resource sets within the deployment frequency band corresponding to the AMP device; or, the candidate frequency domain resource set k associated with the AMP device is determined from multiple candidate frequency domain resource sets within the deployment frequency band corresponding to the AMP device based on the identifier of the AMP device and / or the group identifier to which the AMP device belongs; or, the candidate frequency domain resource set k associated with the AMP device is determined from multiple candidate frequency domain resource sets within the deployment frequency band corresponding to the AMP device based on the number of the first candidate frequency domain resource selected during the initialization of the AMP device.

[0454] In some embodiments, the values ​​of the plurality of preset frequency hopping intervals can be positive and / or negative.

[0455] In some embodiments, the first candidate frequency domain resource selected by the AMP device during initialization is randomly selected, or the first candidate frequency domain resource selected by the AMP device during initialization is configured by the network, or the first candidate frequency domain resource selected by the AMP device during initialization is determined based on the identifier of the AMP device and / or the identifier of the peer device.

[0456] In some embodiments, the N candidate frequency domain resources are determined based on at least one frequency hopping pattern.

[0457] In some embodiments, the at least one frequency hopping pattern is agreed upon by a protocol, or the at least one frequency hopping pattern is configured by the network.

[0458] In some embodiments, the time unit is one of the following: symbol, time slot, mini-time slot, subframe, second, millisecond, microsecond.

[0459] In some embodiments, the N candidate frequency domain resources are some or all of the candidate frequency domain resources within the deployment frequency band corresponding to the AMP device; and / or,

[0460] When the AMP device transmits a reference signal using the N candidate frequency domain resources, it uses all or part of the resources on each candidate frequency domain resource to transmit the reference signal; and / or,

[0461] The N candidate frequency domain resources do not overlap, or there are partially overlapping candidate frequency domain resources among the N candidate frequency domain resources.

[0462] In some embodiments, the reference signal transmitted by the AMP device includes a frame header or a packet header, or the AMP device transmits information carrying a frame header or a packet header before transmitting the reference signal;

[0463] The frame header or packet header at least carries information about the duration of time that the candidate frequency domain resources have been occupied.

[0464] In some embodiments, the frame header or packet header also carries at least one of the following:

[0465] Information used to identify the AMP device;

[0466] Information used to identify the receiving device;

[0467] Synchronization / pilot sequences are used by the receiving device to obtain synchronization information;

[0468] Configuration information of the reference signal sent by the AMP device.

[0469] In some embodiments, the AMP device transmits reference signals on N candidate frequency domain resources, including:

[0470] The AMP device transmits reference signals on the N candidate frequency domain resources using active transmission or backscattering.

[0471] In some embodiments, the candidate frequency domain resources are one of the following: channel, system bandwidth, carrier bandwidth, BWP, aggregation / set / binding of multiple BWPs, aggregation / set / binding of multiple subcarriers, and aggregation / set / binding of multiple PRBs.

[0472] In some embodiments, there is the following relationship between the number of times W of the AMP device sends a reference signal, the duration T1 of a single reference signal transmission by the AMP device, and the time T for the network to schedule the AMP device to communicate: W*T1≤T;

[0473] Where W is a positive integer, and T and T1 are both positive numbers.

[0474] In some embodiments, the number of times the AMP device sends the reference signal is determined by the protocol, or the number of times the AMP device sends the reference signal is configured by the network; and / or,

[0475] The duration of a single reference signal transmission by the AMP device is determined by the protocol, or the duration of a single reference signal transmission by the AMP device is configured by the network; and / or,

[0476] The time interval between two consecutive frequency hopping transmissions of the reference signal by the AMP device is determined by the protocol, or the time interval between two consecutive frequency hopping transmissions of the reference signal by the AMP device is configured by the network; and / or,

[0477] The maximum duration for the AMP device to transmit reference signals is determined by the protocol, or the maximum duration for the AMP device to transmit reference signals is configured by the network.

[0478] In some embodiments, different AMP devices use the same method to determine candidate frequency domain resources for transmitting reference signals based on dual-frequency phase difference for ranging and / or positioning, or different AMP devices use different methods to determine candidate frequency domain resources for transmitting reference signals based on dual-frequency phase difference for ranging and / or positioning.

[0479] In some embodiments, different AMP devices use frequency division multiplexing (FDM) to transmit reference signals for ranging and / or positioning based on dual-frequency phase difference.

[0480] In some embodiments, the communication unit may be a communication interface or transceiver, or an input / output interface of a communication chip or system-on-a-chip. The processing unit may be one or more processors.

[0481] It should be understood that the AMP device 300 according to the embodiments of this application may correspond to the AMP device in the method embodiments of this application, and the above and other operations and / or functions of each unit in the AMP device 300 are respectively for implementing Figure 7 The corresponding process for the AMP device in Method 200 shown will not be elaborated here for the sake of brevity.

[0482] Figure 18 A schematic block diagram of a communication device 400 according to an embodiment of this application is shown. Figure 18 As shown, the communication device 400 includes:

[0483] The communication unit 410 is used to receive reference signals sent by the environmental energy AMP device on N candidate frequency domain resources;

[0484] The reference signals transmitted on the N candidate frequency domain resources are used to determine the location of the AMP device or the communication device, and / or the reference signals transmitted on the N candidate frequency domain resources are used to determine the distance between the AMP device and the communication device, where N is a positive integer and N≥2.

[0485] In some embodiments, the AMP device may have one or more candidate frequency domain resources for transmitting reference signals on the same available time unit.

[0486] In some embodiments, the candidate frequency domain resources for transmitting the reference signal in the i-th available time unit are different from the candidate frequency domain resources for transmitting the reference signal in the (i+1)-th available time unit, where i is an integer greater than or equal to 0.

[0487] In some embodiments, the interval between the candidate frequency domain resources for transmitting the reference signal in the i-th available time unit and the candidate frequency domain resources for transmitting the reference signal in the (i+1)-th available time unit is greater than or equal to X frequency domain units, where X is a positive integer.

[0488] In some embodiments, the frequency domain unit is one of the following: candidate frequency domain resource, channel, system bandwidth, carrier, subcarrier, physical resource block (PRB), bandwidth portion (BWP), megahertz (MHz), kilohertz (kHz), hertz (Hz).

[0489] In some embodiments, when the number of candidate frequency domain resources used by the AMP device for transmitting reference signals in the same available time unit is one, the candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on at least one of the following:

[0490] The candidate frequency domain resources used by the AMP device in the i-th available time unit, the frequency hopping interval, the total number of candidate frequency domain resources in the deployment frequency band corresponding to the AMP device, the smallest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and the largest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device.

[0491] In some embodiments, the frequency hopping interval is a fixed value, or the frequency hopping interval is cyclically selected from a plurality of preset frequency hopping intervals in a first order, or the frequency hopping interval is determined from a plurality of preset frequency hopping intervals based on the value of i, or the frequency hopping interval is determined from a plurality of preset frequency hopping intervals based on the number of the frequency domain resource used on the i-th available time unit.

[0492] In some embodiments, the candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula:

[0493] F (i+1) =(F (i) +ΔF)mod M;

[0494] Among them, F (i+1) F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i) ΔF represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit, ΔF represents the frequency hopping interval, and M represents the total number of candidate frequency domain resources in the deployment frequency band corresponding to the AMP device.

[0495] In some embodiments, in F (i) In the case of candidate frequency domain resources available for the AMP device, let F (r) =F(i) The available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula:

[0496] F (r+1) =(F (r) +ΔF)mod M;

[0497] If F (r+1) For the candidate frequency domain resources available for the AMP device, then F (i+1) =F (r+1) ;

[0498] If F (r+1) For candidate frequency domain resources that are unavailable for the AMP device, let r = r + 1, and perform F based on the updated r. (r+1) Calculation;

[0499] Among them, F (i+1) F represents the number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) ΔF represents the number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit, ΔF represents the frequency hopping interval, and M represents the total number of candidate frequency domain resources in the deployment frequency band corresponding to the AMP device.

[0500] In some embodiments, the candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula:

[0501] F (i+1) =(F (i) +ΔF)mod(q+1)+p;

[0502] Among them, F (i+1) F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i) ΔF represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit, p represents the smallest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and q represents the largest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device.

[0503] Among them, F (i) and F (i+1) Satisfying: p≤F (i) ≤q, p≤F (i+1) ≤q.

[0504] In some embodiments, in F (i) In the case of candidate frequency domain resources available for the AMP device, let F (r)=F (i) The available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula:

[0505] F (r+1) =(F (r) +ΔF)mod(q+1)+p;

[0506] If F (r+1) For the candidate frequency domain resources available for the AMP device, then F (i+1) =F (r+1) ;

[0507] If F (r+1) For candidate frequency domain resources that are unavailable for the AMP device, let r = r + 1, and perform F based on the updated r. (r+1) Calculation;

[0508] Among them, F (i+1) F represents the number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) ΔF represents the number of the available candidate frequency domain resource used by the AMP device in the i-th available time unit, p represents the smallest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and q represents the largest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device.

[0509] Among them, F (i) and F (i+1) Satisfying: p≤F (i) ≤q, p≤F (i+1) ≤q.

[0510] In some embodiments, the candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula:

[0511] F (i+1) =(F (i) +ΔF)mod(q k +1)+p k ;

[0512] Among them, F (i+1) F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i) This represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit, ΔF represents the frequency hopping interval, and p k q represents the smallest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device. kThis represents the largest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device;

[0513] Among them, F (i) and F (i+1) Satisfy: p k ≤F (i) ≤q k， p k ≤F (i+1) ≤q k .

[0514] In some embodiments, in F (i) In the case of candidate frequency domain resources available for the AMP device, let F (r) =F (i) The available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula:

[0515] F (r+1) =(F (r) +ΔF)mod(q k +1)+p k ;

[0516] If F (r+1) For the candidate frequency domain resources available for the AMP device, then F (i+1) =F (r+1) ;

[0517] If F (r+1) For candidate frequency domain resources that are unavailable for the AMP device, let r = r + 1, and perform F based on the updated r. (r+1) Calculation;

[0518] Among them, F (i+1) F represents the number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) This represents the number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit, ΔF represents the frequency hopping interval, and p k q represents the smallest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device. k This represents the largest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device;

[0519] Among them, F (i) and F (i+1) Satisfy: p k ≤F (i) ≤q k，p k ≤F (i+1) ≤q k .

[0520] In some embodiments, the candidate frequency domain resource used by the AMP device on the (i+1)-th available time unit is determined based on the following formula:

[0521] F (i+1) =F (i) +(-1) init *(-1) S ΔF;

[0522] where, F (i+1) represents the number of the candidate frequency domain resource used by the AMP device on the (i+1)-th available time unit, F (i) represents the number of the candidate frequency domain resource used by the AMP device on the i-th available time unit, init takes a value of 0 or 1, and ΔF represents the frequency hopping interval;

[0523] wherein, the initial value of S is 0, when F (i) +(-1) init *(-1) S ΔF<p or F (i) +(-1) init *(-1) S ΔF>q, S=S+1, and F (i+1) is calculated based on the updated S, p represents the minimum candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and q represents the maximum candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device;

[0524] wherein, F (i) and F (i+1) satisfy: p≤F (i) ≤q, p≤F (i+1) ≤q.

[0525] In some embodiments, when F (i) is an available candidate frequency domain resource for the AMP device, let F (r) =F (i) , the available candidate frequency domain resource used by the AMP device on the (i+1)-th available time unit is determined based on the following formula:

[0526] F (r+1) =F (r) +(-1) init *(-1) S ΔF;

[0527] if F (r+1)is a candidate frequency domain resource available to the AMP device, then F (i+1) =F (r+1) ;

[0528] if F (r+1) is an unavailable candidate frequency domain resource for the AMP device, set r=r+1, and calculate F (r+1) based on the updated r;

[0529] wherein, F (i+1) represents the number of an available candidate frequency domain resource used by the AMP device on the (i+1)th available time unit, F (i) represents the number of an available candidate frequency domain resource used by the AMP device on the ith available time unit, init takes a value of 0 or 1, and ΔF represents a frequency hopping interval;

[0530] wherein, the initial value of S is 0, when F (i) +(-1) init *(-1) S ΔF<p or F (i) +(-1) init *(-1) S ΔF>q, S=S+1, and calculate F (i+1) based on the updated S, p represents the minimum candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and q represents the maximum candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device;

[0531] wherein, F (i) and F (i+1) satisfy: p≤F (i) ≤q, p≤F (i+1) ≤q.

[0532] In some embodiments, the candidate frequency domain resource used by the AMP device on the (i+1)th available time unit is determined based on the following formula:

[0533] F (i+1) =F (i) +(-1) init *(-1) S ΔF;

[0534] wherein, F (i+1) represents the number of a candidate frequency domain resource used by the AMP device on the (i+1)th available time unit, F (i) represents the number of a candidate frequency domain resource used by the AMP device on the ith available time unit, init takes a value of 0 or 1, and ΔF represents a frequency hopping interval;

[0535] Wherein, within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device, the initial value of S is 0, and in F (i) +(-1) init *(-1) S ΔF <p k or F (i) +(-1) init *(-1) S ΔF>q k In the case of S = S + 1, and F is performed based on the updated S. (i+1) The calculation of p k q represents the smallest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device. k This represents the largest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device;

[0536] Among them, F (i) and F (i+1) Satisfy: p k ≤F (i) ≤q k， p k ≤F (i+1) ≤q k .

[0537] In some embodiments, in F (i) In the case of candidate frequency domain resources available for the AMP device, let F (r) =F (i) The available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula:

[0538] F (r+1) =F (r) +(-1) init *(-1) S ΔF;

[0539] If F (r+1) For the candidate frequency domain resources available for the AMP device, then F (i+1) =F (r+1) ;

[0540] If F (r+1) For candidate frequency domain resources that are unavailable for the AMP device, let r = r + 1, and perform F based on the updated r. (r+1) Calculation;

[0541] Among them, F (i+1) F represents the number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i)This indicates the number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit. The value of init is 0 or 1, and ΔF represents the frequency hopping interval.

[0542] Wherein, within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device, the initial value of S is 0, and in F (i) +(-1) init *(-1) S ΔF <p k or F (i) +(-1) init *(-1) S ΔF>q k In the case of S = S + 1, and F is performed based on the updated S. (i+1) The calculation of p k q represents the smallest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device. k This represents the largest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device;

[0543] Among them, F (i) and F (i+1) Satisfy: p k ≤F (i) ≤q k， p k ≤F (i+1) ≤q k .

[0544] In some embodiments, when the number of candidate frequency domain resources for transmitting reference signals by the AMP device in the same available time unit is multiple, the j-th candidate frequency domain resource used by the AMP device in the (i+1)-th available time unit is determined based on at least one of the following:

[0545] The j-th candidate frequency domain resource used by the AMP device in the i-th available time unit, the frequency hopping interval associated with the j-th candidate frequency domain resource, the total number of candidate frequency domain resources in the deployment frequency band corresponding to the AMP device, the smallest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and the largest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device.

[0546] Where j is a positive integer.

[0547] In some embodiments, the frequency hopping interval associated with the j-th candidate frequency domain resource is a fixed value; or, the frequency hopping interval associated with the j-th candidate frequency domain resource is cyclically selected from a plurality of preset frequency hopping intervals in a second order; or, the frequency hopping interval associated with the j-th candidate frequency domain resource is determined from a plurality of preset frequency hopping intervals based on the value of i; or, the frequency hopping interval associated with the j-th candidate frequency domain resource is determined from a plurality of preset frequency hopping intervals based on the number of the j-th candidate frequency domain resource used on the i-th available time unit.

[0548] In some embodiments, the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit is determined based on the following formula:

[0549] F (i+1)_j =(F (i)_j +ΔF′)mod M;

[0550] Among them, F (i+1)_j F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i)_j ΔF′ represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit, ΔF′ represents the frequency hopping interval associated with the j-th candidate frequency domain resource, and M represents the total number of candidate frequency domain resources in the deployment frequency band corresponding to the AMP device.

[0551] In some embodiments, the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit is determined based on the following formula:

[0552] F (i+1)_j =(F (i)_j +ΔF′)mod(q+1)+p;

[0553] Among them, F (i+1)_j F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i)_j ΔF′ represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit, ΔF′ represents the frequency hopping interval associated with the j-th candidate frequency domain resource, p represents the smallest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and q represents the largest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device.

[0554] Among them, F (i)_j and F (i+1)_j Satisfying: p≤F (i)_j ≤q, p≤F (i+1)_j ≤q.

[0555] In some embodiments, the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit is determined based on the following formula:

[0556] F (i+1)_j =(F (i)_j +ΔF′)mod(q k +1)+p k ;

[0557] Among them, F (i+1)_j F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i)_j This represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit, ΔF′ represents the frequency hopping interval associated with the j-th candidate frequency domain resource, and p k q represents the smallest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device. k This represents the largest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device;

[0558] Among them, F (i)_j and F (i+1)_j Satisfy: p k ≤F (i)_j ≤q k， p k ≤F (i+1)_j ≤q k .

[0559] In some embodiments, the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit is determined based on the following formula:

[0560] F (i+1)_j =F (i)_j +(-1) init *(-1) S ΔF′;

[0561] Among them, F (i+1)_j F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i)_j The value of init represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit. The value of init is 0 or 1, and ΔF′ represents the frequency hopping interval associated with the j-th candidate frequency domain resource.

[0562] Where S is initialized to 0, and F (i)_j +(-1) init *(-1)S ΔF′<p or F (i)_j +(-1) init *(-1) S ΔF′>q, S = S+1, and F is calculated based on the updated S (i+1)_j , wherein p represents the minimum candidate frequency domain resource number within the deployment frequency band corresponding to the AMP device, and q represents the maximum candidate frequency domain resource number within the deployment frequency band corresponding to the AMP device;

[0563] wherein, F (i)_j and F (i+1)_j satisfy: p≤F (i)_j ≤q, p≤F (i+1)_j ≤q.

[0564] In some embodiments, the j-th used candidate frequency domain resource of the AMP device on the (i+1)-th available time unit is determined based on the following formula:

[0565] F (i+1)_j = F (i)_j +(-1) init *(-1) S ΔF′;

[0566] wherein, F (i+1)_j represents the number of the j-th used candidate frequency domain resource of the AMP device on the (i+1)-th available time unit, F (i)_j represents the number of the j-th used candidate frequency domain resource of the AMP device on the i-th available time unit, init takes a value of 0 or 1, and ΔF′ represents the frequency hopping interval associated with the j-th candidate frequency domain resource;

[0567] wherein, within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device, the initial value of S is 0, and when F (i)_j +(-1) init *(-1) S ΔF′<p k or F (i)_j +(-1) init *(-1) S ΔF′>q k , S = S+1, and F is calculated based on the updated S, p (i+1)_j represents the minimum candidate frequency domain resource number in the candidate frequency domain resource set k associated with the AMP device, q k represents the maximum candidate frequency domain resource number in the candidate frequency domain resource set k associated with the AMP device; k

[0568] wherein, F​(i)_j and F (i+1)_j Satisfy: p k ≤F (i)_j ≤q k， p k ≤F (i+1)_j ≤q k .

[0569] In some embodiments, the multiple candidate frequency domain resources used by the AMP device for transmitting reference signals in the same available time unit are consecutive frequency domain resources, or the multiple candidate frequency domain resources used by the AMP device for transmitting reference signals in the same available time unit are non-consecutive frequency domain resources.

[0570] In some embodiments, when the number of candidate frequency domain resources for transmitting a reference signal by the AMP device in the same available time unit is one, the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on at least one of the following:

[0571] The available candidate frequency domain resources used by the AMP device in the i-th available time unit, the frequency hopping interval, the total number of candidate frequency domain resources available to the AMP device in its corresponding deployment frequency band, the smallest relative number of the candidate frequency domain resource available to the AMP device in its corresponding deployment frequency band, and the largest relative number of the candidate frequency domain resource available to the AMP device in its corresponding deployment frequency band.

[0572] In some embodiments, the frequency hopping interval is a fixed value, or the frequency hopping interval is cyclically selected from a plurality of preset frequency hopping intervals in a first order, or the frequency hopping interval is determined from a plurality of preset frequency hopping intervals based on the value of i, or the frequency hopping interval is determined from a plurality of preset frequency hopping intervals based on the relative number of the available candidate frequency domain resources used on the i-th available time unit.

[0573] In some embodiments, the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula:

[0574] F (i+1) =(F (i) +ΔF)mod M′;

[0575] Among them, F (i+1) F represents the relative number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i)The relative number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit is represented, ΔF represents the frequency hopping interval, and M′ represents the total number of candidate frequency domain resources available to the AMP device in its corresponding deployment frequency band.

[0576] In some embodiments, the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula:

[0577] F (i+1) =(F (i) +ΔF)mod(q′+1)+p′;

[0578] Among them, F (i+1) F represents the relative number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) ΔF represents the relative number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit, p′ represents the smallest relative number of the candidate frequency domain resources available to the AMP device in its corresponding deployment frequency band, and q′ represents the largest relative number of the candidate frequency domain resources available to the AMP device in its corresponding deployment frequency band.

[0579] Among them, F (i) and F (i+1) Satisfying: p′≤F (i) ≤q′,p′≤F (i+1) ≤q′.

[0580] In some embodiments, the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula:

[0581] F (i+1) =(F (i) +ΔF)mod(q k ′+1)+p k ′;

[0582] Among them, F (i+1) F represents the relative number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) This represents the relative number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit, ΔF represents the frequency hopping interval, and p k ' represents the smallest available candidate frequency domain resource relative number within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device, q k' represents the relative number of the maximum available candidate frequency domain resource within candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device;

[0583] wherein, F (i) and F (i+1) satisfies: p k ' ≤ F (i) ≤ q k ', p k ' ≤ F (i+1) ≤ q k '.

[0584] In some embodiments, the available candidate frequency domain resource used by the AMP device on the (i+1)th available time unit is determined based on the following formula:

[0585] F (i+1) = F (i) + (-1) init * (-1) S ΔF;

[0586] wherein, F (i+1) represents the relative number of the available candidate frequency domain resource used by the AMP device on the (i+1)th available time unit, F (i) represents the relative number of the available candidate frequency domain resource used by the AMP device on the ith available time unit, init takes a value of 0 or 1, and ΔF represents a frequency hopping interval;

[0587] wherein, the initial value of S is 0, when F (i) + (-1) init * (-1) S ΔF < p' or F (i) + (-1) init * (-1) S ΔF > q', S = S + 1, and F (i+1) is calculated based on the updated S, p' represents the relative number of the minimum available candidate frequency domain resource of the AMP device in the corresponding deployment frequency band, and q' represents the relative number of the maximum available candidate frequency domain resource of the AMP device in the corresponding deployment frequency band;

[0588] wherein, F (i) and F (i+1) satisfies: p' ≤ F (i) ≤ q', p' ≤ F (i+1) ≤ q'.

[0589] In some embodiments, the available candidate frequency domain resource used by the AMP device on the (i+1)th available time unit is determined based on the following formula:

[0590] F (i+1) =F (i) +(-1) init *(-1) S ΔF;

[0591] Among them, F (i+1) This represents the available candidate frequency domain resources that the AMP device can use in the (i+1)th available time unit. relatively Number, F (i) The value of init represents the relative number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit. The value of init is 0 or 1, and ΔF represents the frequency hopping interval.

[0592] Wherein, within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device, the initial value of S is 0, and in F (i) +(-1) init *(-1) S ΔF <p k ′ or F (i) +(-1) init *(-1) S ΔF>q k In the case of S = S + 1, and F is performed based on the updated S. (i+1) The calculation of p k ' represents the smallest available candidate frequency domain resource relative number within the candidate frequency domain resource set k associated with the AMP device, q k ′ represents the relative number of the largest available candidate frequency domain resource within the candidate frequency domain resource set k associated with the AMP device;

[0593] Among them, F (i) and F (i+1) Satisfy: p k ′≤F (i) ≤q k ′, p k ′≤F (i+1) ≤q k ′.

[0594] In some embodiments, the candidate frequency domain resources available to the AMP device in its corresponding deployment frequency band are configured by the network; or, the candidate frequency domain resources available to the AMP device in its corresponding deployment frequency band are preempted and shared by the network device with the AMP device; or, the candidate frequency domain resources available to the AMP device in its corresponding deployment frequency band are preempted by the AMP device.

[0595] In some embodiments, the value of init is randomly determined by the AMP device, or the value of init is determined by network configuration, or the value of init is determined based on the location of the first candidate frequency domain resource selected during initialization, or the value of init is determined based on the identifier of the AMP device and / or the identifier of the receiving device.

[0596] In some embodiments, when S = S+1 and there are multiple preset frequency hopping intervals, the frequency hopping interval used by the AMP device is selected from the multiple preset frequency hopping intervals in a preset order.

[0597] In some embodiments, the candidate frequency domain resource set k associated with the AMP device is a candidate frequency domain resource set configured or indicated by the network among multiple candidate frequency domain resource sets within the deployment frequency band corresponding to the AMP device; or, the candidate frequency domain resource set k associated with the AMP device is determined from multiple candidate frequency domain resource sets within the deployment frequency band corresponding to the AMP device based on the identifier of the AMP device and / or the group identifier to which the AMP device belongs; or, the candidate frequency domain resource set k associated with the AMP device is determined from multiple candidate frequency domain resource sets within the deployment frequency band corresponding to the AMP device based on the number of the first candidate frequency domain resource selected during the initialization of the AMP device.

[0598] In some embodiments, the values ​​of the plurality of preset frequency hopping intervals can be positive and / or negative.

[0599] In some embodiments, the first candidate frequency domain resource selected by the AMP device during initialization is randomly selected, or the first candidate frequency domain resource selected by the AMP device during initialization is configured by the network, or the first candidate frequency domain resource selected by the AMP device during initialization is determined based on the identifier of the AMP device and / or the identifier of the peer device.

[0600] In some embodiments, the N candidate frequency domain resources are determined based on at least one frequency hopping pattern.

[0601] In some embodiments, the at least one frequency hopping pattern is agreed upon by a protocol, or the at least one frequency hopping pattern is configured by the network.

[0602] In some embodiments, the time unit is one of the following: symbol, time slot, mini-time slot, subframe, second, millisecond, microsecond.

[0603] In some embodiments, the N candidate frequency domain resources are some or all of the candidate frequency domain resources within the deployment frequency band corresponding to the AMP device; and / or,

[0604] When the AMP device transmits a reference signal using the N candidate frequency domain resources, it uses all or part of the resources on each candidate frequency domain resource to transmit the reference signal; and / or,

[0605] The N candidate frequency domain resources do not overlap, or there are partially overlapping candidate frequency domain resources among the N candidate frequency domain resources.

[0606] In some embodiments, the reference signal transmitted by the AMP device includes a frame header or a packet header, or the AMP device transmits information carrying a frame header or a packet header before transmitting the reference signal;

[0607] The frame header or packet header at least carries information about the duration of time that the candidate frequency domain resources have been occupied.

[0608] In some embodiments, the frame header or packet header also carries at least one of the following:

[0609] Information used to identify the AMP device;

[0610] Information used to identify the receiving device;

[0611] Synchronization / pilot sequences are used by the receiving device to obtain synchronization information;

[0612] Configuration information of the reference signal sent by the AMP device.

[0613] In some embodiments, the AMP device transmits reference signals on N candidate frequency domain resources, including:

[0614] The AMP device transmits reference signals on the N candidate frequency domain resources using active transmission or backscattering.

[0615] In some embodiments, the candidate frequency domain resources are one of the following: channel, system bandwidth, carrier bandwidth, BWP, aggregation / set / binding of multiple BWPs, aggregation / set / binding of multiple subcarriers, and aggregation / set / binding of multiple PRBs.

[0616] In some embodiments, there is the following relationship between the number of times W of the AMP device sends a reference signal, the duration T1 of a single reference signal transmission by the AMP device, and the time T for the network to schedule the AMP device to communicate: W*T1≤T;

[0617] Where W is a positive integer, and T and T1 are both positive numbers.

[0618] In some embodiments, the number of times the AMP device sends the reference signal is determined by the protocol, or the number of times the AMP device sends the reference signal is configured by the network; and / or,

[0619] The duration of a single reference signal transmission by the AMP device is determined by the protocol, or the duration of a single reference signal transmission by the AMP device is configured by the network; and / or,

[0620] The time interval between two consecutive frequency hopping transmissions of the reference signal by the AMP device is determined by the protocol, or the time interval between two consecutive frequency hopping transmissions of the reference signal by the AMP device is configured by the network; and / or,

[0621] The maximum duration for the AMP device to transmit reference signals is determined by the protocol, or the maximum duration for the AMP device to transmit reference signals is configured by the network.

[0622] In some embodiments, different AMP devices use the same method to determine candidate frequency domain resources for transmitting reference signals based on dual-frequency phase difference for ranging and / or positioning, or different AMP devices use different methods to determine candidate frequency domain resources for transmitting reference signals based on dual-frequency phase difference for ranging and / or positioning.

[0623] In some embodiments, different AMP devices use frequency division multiplexing (FDM) to transmit reference signals for ranging and / or positioning based on dual-frequency phase difference.

[0624] In some embodiments, the communication device is one of the following: access point (AP), site (STA), base station, terminal device, or transmit / receive point (TRP).

[0625] In some embodiments, the communication unit may be a communication interface or transceiver, or an input / output interface of a communication chip or system-on-a-chip. The processing unit may be one or more processors.

[0626] It should be understood that the communication device 400 according to the embodiments of this application may correspond to the communication device in the method embodiments of this application, and the above and other operations and / or functions of each unit in the communication device 400 are respectively for implementing Figure 7 The corresponding process of the communication device in method 200 shown will not be described in detail here for the sake of brevity.

[0627] Figure 19 This is a schematic structural diagram of a communication device 500 provided in an embodiment of this application. Figure 19 The communication device 500 shown includes a processor 510, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0628] In some embodiments, such as Figure 19As shown, the communication device 500 may further include a memory 520. The processor 510 can retrieve and run computer programs from the memory 520 to implement the methods described in this embodiment.

[0629] The memory 520 can be a separate device independent of the processor 510, or it can be integrated into the processor 510.

[0630] In some embodiments, such as Figure 19 As shown, the communication device 500 may also include a transceiver 530, and the processor 510 may control the transceiver 530 to communicate with other devices. Specifically, it may send information or data to other devices or receive information or data sent by other devices.

[0631] The transceiver 530 may include a transmitter and a receiver. The transceiver 530 may further include antennas, and the number of antennas may be one or more.

[0632] In some embodiments, the processor 510 may implement the functions of the processing unit in the AMP device 300, or the processor 510 may implement the functions of the processing unit in the communication device 400. For the sake of brevity, these will not be described in detail here.

[0633] In some embodiments, transceiver 530 can perform the functions of the communication unit in AMP device 300, which will not be described in detail here for the sake of brevity.

[0634] In some embodiments, the transceiver 530 can perform the functions of the communication unit in the communication device 400, which will not be described in detail here for the sake of brevity.

[0635] In some embodiments, the communication device 500 may specifically be the communication device 400 of the present application embodiments, and the communication device 500 may implement the corresponding processes implemented by the communication device 400 in the various methods of the present application embodiments. For the sake of brevity, it will not be described in detail here.

[0636] In some embodiments, the communication device 500 may specifically be the AMP device 300 of the present application embodiments, and the communication device 500 may implement the corresponding processes implemented by the AMP device 300 in the various methods of the present application embodiments. For the sake of brevity, it will not be described in detail here.

[0637] Figure 20 This is a schematic structural diagram of the device according to an embodiment of this application. Figure 20 The illustrated device 600 includes a processor 610, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0638] In some embodiments, such as Figure 20As shown, the device 600 may further include a memory 620. The processor 610 can retrieve and run computer programs from the memory 620 to implement the methods described in the embodiments of this application.

[0639] The memory 620 can be a separate device independent of the processor 610, or it can be integrated into the processor 610.

[0640] In some embodiments, the processor 610 may implement the functions of the processing unit in the AMP device 300, or the processor 610 may implement the functions of the processing unit in the communication device 400. For the sake of brevity, these will not be described in detail here.

[0641] In some embodiments, the device 600 may further include an input interface 630. The processor 610 can control the input interface 630 to communicate with other devices or chips; specifically, it can acquire information or data sent by other devices or chips. Optionally, the processor 610 may be located inside or outside the chip.

[0642] In some embodiments, the input interface 630 can implement the function of the communication unit in the AMP device 300, or the input interface 630 can implement the function of the communication unit in the communication device 400.

[0643] In some embodiments, the device 600 may further include an output interface 640. The processor 610 can control the output interface 640 to communicate with other devices or chips; specifically, it can output information or data to other devices or chips. Optionally, the processor 610 may be located inside or outside the chip.

[0644] In some embodiments, the output interface 640 can implement the function of the communication unit in the AMP device 300, or the output interface 640 can implement the function of the communication unit in the communication device 400.

[0645] In some embodiments, the device can be applied to the communication device in the embodiments of this application, and the device can implement the corresponding processes implemented by the communication device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0646] In some embodiments, the device can be applied to the AMP device in the embodiments of this application, and the device can implement the corresponding processes implemented by the AMP device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0647] In some embodiments, the apparatus mentioned in the present application may also be a chip. For example, it may be a system-on-a-chip, a system-on-a-chip, a chip system, or a system-on-a-chip, etc.

[0648] Figure 21 This is a schematic block diagram of a communication system 700 provided in an embodiment of this application. Figure 21 As shown, the communication system 700 includes an AMP device 710 and a communication device 720.

[0649] The AMP device 710 can be used to implement the corresponding functions implemented by the AMP device in the above method, and the communication device 720 can be used to implement the corresponding functions implemented by the communication device in the above method. For the sake of brevity, these will not be described in detail here.

[0650] It should be understood that the processor in the embodiments of this application may be an integrated circuit chip with signal processing capabilities. In implementation, 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 can 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 can 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 can be located 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 memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method.

[0651] It is understood that 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. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory used in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0652] It should be understood that the above-described memory is exemplary and not a limiting description. For example, 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), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DR RAM), etc. That is to say, the memory in the embodiments of this application is intended to include, but is not limited to, these and any other suitable types of memory.

[0653] This application also provides a computer-readable storage medium for storing computer programs.

[0654] In some embodiments, the computer-readable storage medium may be applied to the communication device in the embodiments of this application, and the computer program causes the computer to execute the corresponding processes implemented by the communication device in the various methods of the embodiments of this application. For the sake of brevity, these will not be described in detail here.

[0655] In some embodiments, the computer-readable storage medium may be applied to the AMP device in the embodiments of this application, and the computer program causes the computer to execute the corresponding processes implemented by the AMP device in the various methods of the embodiments of this application. For the sake of brevity, these will not be described in detail here.

[0656] This application also provides a computer program product, including computer program instructions.

[0657] In some embodiments, the computer program product can be applied to the communication device in the embodiments of this application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the communication device in the various methods of the embodiments of this application. For the sake of brevity, they will not be described in detail here.

[0658] In some embodiments, the computer program product can be applied to the AMP device in the embodiments of this application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the AMP device in the various methods of the embodiments of this application. For the sake of brevity, they will not be described in detail here.

[0659] This application also provides a computer program.

[0660] In some embodiments, the computer program can be applied to the communication device in the embodiments of this application. When the computer program is run on a computer, it causes the computer to execute the corresponding processes implemented by the communication device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0661] In some embodiments, the computer program can be applied to the AMP device in the embodiments of this application. When the computer program is run on a computer, it causes the computer to execute the corresponding processes implemented by the AMP device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0662] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0663] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0664] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, 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. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, 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.

[0665] 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.

[0666] In addition, 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.

[0667] If 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. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. 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.

[0668] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for wireless communication, characterized in that, include: The ambient energy AMP device transmits reference signals on N candidate frequency domain resources; Wherein, the reference signals transmitted on the N candidate frequency domain resources are used to determine the location of the AMP device or the receiving device of the reference signal, and / or, the reference signals transmitted on the N candidate frequency domain resources are used to determine the distance between the AMP device and the receiving device of the reference signal, where N is a positive integer and N≥2; The AMP device may have one or more candidate frequency domain resources for transmitting reference signals in the same available time unit. Where the number of candidate frequency domain resources used by the AMP device for transmitting reference signals in the same available time unit is one, the candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on at least one of the following: The candidate frequency domain resources used by the AMP device in the i-th available time unit, the frequency hopping interval, the total number of candidate frequency domain resources in the deployment frequency band corresponding to the AMP device, the smallest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and the largest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device; The candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula: F (i+1) = (F (i) +ΔF) mod M; Among them, F (i+1) F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i) ΔF represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit, ΔF represents the frequency hopping interval, and M represents the total number of candidate frequency domain resources in the deployment frequency band corresponding to the AMP device.

2. The method as described in claim 1, characterized in that, The candidate frequency domain resources for transmitting the reference signal in the i-th available time unit are different from those in the (i+1)-th available time unit, where i is an integer greater than or equal to 0.

3. The method as described in claim 1, characterized in that, The interval between the candidate frequency domain resources for transmitting the reference signal in the i-th available time unit and the candidate frequency domain resources for transmitting the reference signal in the (i+1)-th available time unit is greater than or equal to X frequency domain units, where X is a positive integer.

4. The method as described in claim 3, characterized in that, The frequency domain unit is one of the following: candidate frequency domain resource, channel, system bandwidth, carrier, subcarrier, physical resource block (PRB), bandwidth portion (BWP), megahertz (MHz), kilohertz (kHz), and hertz (Hz).

5. The method as described in claim 1, characterized in that, The frequency hopping interval is a fixed value, or the frequency hopping interval is selected cyclically from a plurality of preset frequency hopping intervals in a first order, or the frequency hopping interval is determined from a plurality of preset frequency hopping intervals based on the value of i, or the frequency hopping interval is determined from a plurality of preset frequency hopping intervals based on the number of the frequency domain resource used on the i-th available time unit.

6. The method as described in claim 1, characterized in that, In F (i) In the case of candidate frequency domain resources available for the AMP device, let F (r) = F (i) The available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula: F (r+1) = (F (r) +ΔF) mod M; If F (r+1) For the candidate frequency domain resources available for the AMP device, then F (i+1) = F (r+1) ; If F (r+1) For candidate frequency domain resources that are unavailable for the AMP device, let r = r + 1, and perform F based on the updated r. (r+1) Calculation; Among them, F (i+1) F represents the number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) ΔF represents the number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit, ΔF represents the frequency hopping interval, and M represents the total number of candidate frequency domain resources in the deployment frequency band corresponding to the AMP device.

7. The method as described in claim 1, characterized in that, The candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are also determined based on the following formula: F (i+1) = (F (i) +ΔF) mod (q+1) + p; Among them, F (i+1) F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i) ΔF represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit, p represents the smallest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and q represents the largest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device. Among them, F (i) and F (i+1) Satisfying: p≤F (i) ≤q ， p≤F (i+1) ≤q.

8. The method as described in claim 1, characterized in that, In F (i) In the case of candidate frequency domain resources available for the AMP device, let F (r) = F (i) The available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are also determined based on the following formula: F (r+1) = (F (r) +ΔF) mod (q+1) + p; if F (r+1) For the candidate frequency domain resources available for the AMP device, then F (i+1) = F (r+1) ; If F (r+1) For candidate frequency domain resources that are unavailable for the AMP device, let r = r + 1, and perform F based on the updated r. (r+1) Calculation; Among them, F (i+1) F represents the number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) ΔF represents the number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit, p represents the smallest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and q represents the largest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device. Among them, F (i) and F (i+1) Satisfying: p≤F (i) ≤q ， p≤F (i+1) ≤q.

9. The method as described in claim 6, characterized in that, The candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are also determined based on the following formula: F (i+1) = (F (i) +ΔF) mod (q k +1) + p k ; Among them, F (i+1) F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i) This represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit, ΔF represents the frequency hopping interval, and p k q represents the smallest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device. k This represents the largest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device; Among them, F (i) and F (i+1) Satisfy: p k ≤F (i) ≤q k， p k ≤F (i+1) ≤q k .

10. The method as described in claim 1, characterized in that, In F (i) In the case of candidate frequency domain resources available for the AMP device, let F (r) = F (i) The available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula: F (r+1) = (F (r) +ΔF) mod (q k +1) + p k ; If F (r+1) For the candidate frequency domain resources available for the AMP device, then F (i+1) = F (r+1) ; If F (r+1) For candidate frequency domain resources that are unavailable for the AMP device, let r = r + 1, and perform F based on the updated r. (r+1) Calculation; Among them, F (i+1) F represents the number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) This represents the number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit, ΔF represents the frequency hopping interval, and p k q represents the smallest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device. k This represents the largest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device; Among them, F (i) and F (i+1) Satisfy: p k ≤F (i) ≤q k， p k ≤F (i+1) ≤q k .

11. The method as described in claim 1, characterized in that, The candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are also determined based on the following formula: F (i+1) = F (i) +(-1) init (-1) S ΔF; Among them, F (i+1) F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i) The value of init represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit. The value of init is 0 or 1, and ΔF represents the frequency hopping interval. wherein, an initial value of S is 0, when F (i) +(-1) init (-1) S ΔF<p or F (i) +(-1) init (-1) S ΔF>q, S=S+1, and F is calculated based on the updated S (i+1) where p represents the minimum candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and q represents the maximum candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device; Among them, F (i) and F (i+1) Satisfying: p≤F (i) ≤q ， p≤F (i+1) ≤q.

12. The method as described in claim 1, characterized in that, In F (i) In the case of candidate frequency domain resources available for the AMP device, let F (r) = F (i) The available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula: F (r+1) = F (r) +(-1) init (-1) S ΔF; If F (r+1) For the candidate frequency domain resources available for the AMP device, then F (i+1) = F (r+1) ; If F (r+1) For candidate frequency domain resources that are unavailable for the AMP device, let r = r + 1, and perform F based on the updated r. (r+1) Calculation; Among them, F (i+1) F represents the number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) This indicates the number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit. The value of init is 0 or 1, and ΔF represents the frequency hopping interval. wherein, the initial value of S is 0, in F (i) +(-1) init (-1) S ΔF<p or F (i) +(-1) init (-1) S ΔF>q, S=S+1, and calculating F (i+1) based on the updated S, p represents the minimum candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and q represents the maximum candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device; Among them, F (i) and F (i+1) Satisfying: p≤F (i) ≤q ， p≤F (i+1) ≤q.

13. The method as described in claim 1, characterized in that, The candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are also determined based on the following formula: F (i+1) = F (i) +(-1) init (-1) S ΔF; Among them, F (i+1) F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i) The value of init represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit. The value of init is 0 or 1, and ΔF represents the frequency hopping interval. Wherein, within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device, the initial value of S is 0, and in F (i) +(-1) init (-1) S ΔF <p k or F (i) +(-1) init (-1) S ΔF>q k In the case of S=S+1, and F is performed based on the updated S. (i+1) The calculation, p k q represents the smallest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device. k This represents the largest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device; Among them, F (i) and F (i+1) Satisfy: p k ≤F (i) ≤q k， p k ≤F (i+1) ≤q k .

14. The method as described in claim 1, characterized in that, In F (i) In the case of candidate frequency domain resources available for the AMP device, let F (r) = F (i) The available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula: F (r+1) = F (r) +(-1) init (-1) S ΔF; If F (r+1) For the candidate frequency domain resources available for the AMP device, then F (i+1) = F (r+1) ; If F (r+1) For candidate frequency domain resources that are unavailable for the AMP device, let r = r + 1, and perform F based on the updated r. (r+1) Calculation; Among them, F (i+1) F represents the number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) This indicates the number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit. The value of init is 0 or 1, and ΔF represents the frequency hopping interval. Wherein, within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device, the initial value of S is 0, and in F (i) +(-1) init (-1) S ΔF <p k or F (i) +(-1) init (-1) S ΔF>q k In the case of S=S+1, and F is performed based on the updated S. (i+1) The calculation, p k q represents the smallest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device. k This represents the largest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device; Among them, F (i) and F (i+1) Satisfy: p k ≤F (i) ≤q k， p k ≤F (i+1) ≤q k .

15. The method as described in claim 1, characterized in that, When the AMP device has multiple candidate frequency domain resources for transmitting reference signals in the same available time unit, the j-th candidate frequency domain resource used by the AMP device in the (i+1)-th available time unit is determined based on at least one of the following: The j-th candidate frequency domain resource used by the AMP device in the i-th available time unit, the frequency hopping interval associated with the j-th candidate frequency domain resource, the total number of candidate frequency domain resources in the deployment frequency band corresponding to the AMP device, the smallest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and the largest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device. Where j is a positive integer.

16. The method as described in claim 15, characterized in that, The frequency hopping interval associated with the j-th candidate frequency domain resource is a fixed value, or the frequency hopping interval associated with the j-th candidate frequency domain resource is cyclically selected from multiple preset frequency hopping intervals according to a second order, or the frequency hopping interval associated with the j-th candidate frequency domain resource is determined from multiple preset frequency hopping intervals based on the value of i, or the frequency hopping interval associated with the j-th candidate frequency domain resource is determined from multiple preset frequency hopping intervals based on the number of the j-th candidate frequency domain resource used on the i-th available time unit.

17. The method as described in claim 15, characterized in that, The candidate frequency domain resource used by the AMP device in the (i+1)th available time unit is determined based on the following formula: F (i+1)_j = (F (i)_j +ΔF ) mod M; Among them, F (i+1)_j F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i)_j ΔF represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit. The frequency hopping interval associated with the j-th candidate frequency domain resource is represented by M, and M represents the total number of candidate frequency domain resources in the deployment frequency band corresponding to the AMP device.

18. The method as described in claim 15, characterized in that, The candidate frequency domain resource used by the AMP device in the (i+1)th available time unit is determined based on the following formula: F (i+1)_j = (F (i)_j +ΔF ) mod (q+1) + p; Among them, F (i+1)_j F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i)_j ΔF represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit. represents the frequency hopping interval associated with the j-th candidate frequency domain resource, p represents the smallest candidate frequency domain resource number within the deployment frequency band corresponding to the AMP device, and q represents the largest candidate frequency domain resource number within the deployment frequency band corresponding to the AMP device; Among them, F (i) _j and F (i+1) _j Satisfying: p≤F (i) _j ≤q ， p≤F (i+1) _j ≤q.

19. The method as described in claim 15, characterized in that, The candidate frequency domain resource used by the AMP device in the (i+1)th available time unit is determined based on the following formula: F (i+1)_j = (F (i)_j +ΔF ) mod (q k +1) + p k ; Among them, F (i+1)_j F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i)_j ΔF represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit. p represents the frequency hopping interval associated with the j-th candidate frequency domain resource. k q represents the smallest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device. k This represents the largest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device; Among them, F (i)_j and F (i+1)_j Satisfy: p k ≤F (i)_j ≤q k， p k ≤F (i+1)_j ≤q k .

20. The method as described in claim 15, characterized in that, The candidate frequency domain resource used by the AMP device in the (i+1)th available time unit is determined based on the following formula: F (i+1)_j = F (i)_j +(-1) init (-1) S ΔF ; Among them, F (i+1)_j F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i)_j This represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit, where init takes the value 0 or 1, and ΔF This represents the frequency hopping interval associated with the j-th candidate frequency domain resource; wherein, the initial value of S is 0, and in F (i)_j +(-1) init (-1) S ΔF <p or F (i)_j +(-1) init (-1) S ΔF >q, S = S + 1, and F is calculated based on the updated S (i+1)_j p represents the minimum candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and q represents the maximum candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device; Among them, F (i)_j and F (i+1)_j Satisfying: p≤F (i) _j ≤q ， p≤F (i+1) _j ≤q.

21. The method as described in claim 15, characterized in that, The candidate frequency domain resource used by the AMP device in the (i+1)th available time unit is determined based on the following formula: F (i+1)_j = F (i)_j +(-1) init (-1) S ΔF ; Among them, F (i+1)_j F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i)_j This represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit, where init takes the value 0 or 1, and ΔF This represents the frequency hopping interval associated with the j-th candidate frequency domain resource; Wherein, within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device, the initial value of S is 0, and in F (i)_j +(-1) init (-1) S ΔF <p k or F (i)_j +(-1) init (-1) S ΔF >q k In the case of S=S+1, and F is performed based on the updated S. (i+1)_j The calculation, p k q represents the smallest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device. k This represents the largest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device; Among them, F (i)_j and F (i+1)_j Satisfy: p k ≤F (i) _j ≤q k， p k ≤F (i+1) _j ≤q k .

22. The method as described in claim 15, characterized in that, The AMP device may have multiple candidate frequency domain resources for transmitting reference signals in the same available time unit that are consecutive frequency domain resources, or the AMP device may have multiple candidate frequency domain resources for transmitting reference signals in the same available time unit that are non-consecutive frequency domain resources.

23. The method as described in claim 1, characterized in that, When the number of candidate frequency domain resources for transmitting a reference signal by the AMP device in the same available time unit is one, the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on at least one of the following: The available candidate frequency domain resources used by the AMP device in the i-th available time unit, the frequency hopping interval, the total number of candidate frequency domain resources available to the AMP device in its corresponding deployment frequency band, the smallest relative number of the candidate frequency domain resource available to the AMP device in its corresponding deployment frequency band, and the largest relative number of the candidate frequency domain resource available to the AMP device in its corresponding deployment frequency band.

24. The method as described in claim 23, characterized in that, The frequency hopping interval is a fixed value, or the frequency hopping interval is selected cyclically from a plurality of preset frequency hopping intervals in a first order, or the frequency hopping interval is determined from a plurality of preset frequency hopping intervals based on the value of i, or the frequency hopping interval is determined from a plurality of preset frequency hopping intervals based on the relative number of the available candidate frequency domain resources used on the i-th available time unit.

25. The method as described in claim 23, characterized in that, The available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula: F (i+1) = (F (i) +ΔF) mod M ; Among them, F (i+1) F represents the relative number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) The relative number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit is represented by ΔF, where ΔF represents the frequency hopping interval, and M represents the frequency hopping interval. This represents the total number of candidate frequency domain resources available to the AMP device within its corresponding deployment frequency band.

26. The method as described in claim 23, characterized in that, The available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula: F (i+1) = (F (i) +ΔF) mod (q +1) + p ; Among them, F (i+1) F represents the relative number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) This represents the relative number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit, ΔF represents the frequency hopping interval, and p q represents the smallest relative number of candidate frequency domain resources available to the AMP device within its corresponding deployment frequency band. This represents the relative number of the largest candidate frequency domain resource available to the AMP device within its corresponding deployment frequency band; Among them, F (i) and F (i+1) Satisfy: p ≤F (i) ≤q ， p ≤F (i+1) ≤q .

27. The method as described in claim 23, characterized in that, The available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula: F (i+1) = (F (i) +ΔF) mod (q k +1) + p k ; Among them, F (i+1) F represents the relative number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) This represents the relative number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit, ΔF represents the frequency hopping interval, and p k q represents the smallest available candidate frequency domain resource relative number within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device. k This represents the relative number of the largest available candidate frequency domain resource within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device; Among them, F (i) and F (i+1) Satisfy: p k ≤F (i) ≤q k ， p k ≤F (i+1) ≤q k .

28. The method as described in claim 23, characterized in that, The available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula: F (i+1) = F (i) +(-1) init (-1) S ΔF; Among them, F (i+1) F represents the relative number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) The value of init represents the relative number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit. The value of init is 0 or 1, and ΔF represents the frequency hopping interval. Where S is initialized to 0, and F (i) +(-1) init (-1) S ΔF <p or F (i) +(-1) init (-1) S ΔF>q In the case of S=S+1, and F is performed based on the updated S. (i+1) The calculation, p q represents the smallest relative number of candidate frequency domain resources available to the AMP device within its corresponding deployment frequency band. This represents the relative number of the largest candidate frequency domain resource available to the AMP device within its corresponding deployment frequency band; Among them, F (i) and F (i+1) Satisfy: p ≤F (i) ≤q ， p ≤F (i+1) ≤q .

29. The method as described in claim 23, characterized in that, The available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula: F (i+1) = F (i) +(-1) init (-1) S ΔF; Among them, F (i+1) This represents the available candidate frequency domain resources that the AMP device can use in the (i+1)th available time unit. relatively Number, F (i) The value of init represents the relative number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit. The value of init is 0 or 1, and ΔF represents the frequency hopping interval. Wherein, within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device, the initial value of S is 0, and in F (i) +(-1) init (-1) S ΔF <p k or F (i) +(-1) init (-1) S ΔF>q k In the case of S=S+1, and F is performed based on the updated S. (i+1) The calculation, p k q represents the smallest available candidate frequency domain resource relative number within the candidate frequency domain resource set k associated with the AMP device. k This represents the relative number of the largest available candidate frequency domain resource within the candidate frequency domain resource set k associated with the AMP device; Among them, F (i) and F (i+1) Satisfy: p k ≤F (i) ≤q k ， p k ≤F (i+1) ≤q k .

30. The method according to any one of claims 8, 10, 12, 14, 23 to 29, characterized in that, The candidate frequency domain resources available to the AMP device in its corresponding deployment frequency band are configured by the network; or, the candidate frequency domain resources available to the AMP device in its corresponding deployment frequency band are preempted and shared by the network device with the AMP device; or, the candidate frequency domain resources available to the AMP device in its corresponding deployment frequency band are preempted by the AMP device.

31. The method as described in claims 11, 12, 13, 14, 20, 21, 28, or 29, characterized in that, The value of init is randomly determined by the AMP device, or the value of init is determined by the network configuration, or the value of init is determined based on the location of the first candidate frequency domain resource selected during initialization, or the value of init is determined based on the identifier of the AMP device and / or the identifier of the receiving device.

32. The method as described in claims 11, 12, 13, 14, 20, 21, 28, or 29, characterized in that, The method further includes: When S=S+1 and there are multiple preset frequency hopping intervals, the AMP device selects a frequency hopping interval from the multiple preset frequency hopping intervals based on a preset order.

33. The method as described in claims 9, 10, 13, 14, 19, 21, 27, or 29, characterized in that, The candidate frequency domain resource set k associated with the AMP device is a candidate frequency domain resource set configured or indicated by the network among multiple candidate frequency domain resource sets within the deployment frequency band corresponding to the AMP device; or, the candidate frequency domain resource set k associated with the AMP device is determined from multiple candidate frequency domain resource sets within the deployment frequency band corresponding to the AMP device based on the identifier of the AMP device and / or the group identifier to which the AMP device belongs; or, the candidate frequency domain resource set k associated with the AMP device is determined from multiple candidate frequency domain resource sets within the deployment frequency band corresponding to the AMP device based on the number of the first candidate frequency domain resource selected during the initialization of the AMP device.

34. The method as described in claim 5, 16, or 24, characterized in that, The values ​​of the multiple preset frequency hopping intervals can be positive and / or negative.

35. The method according to any one of claims 4 to 29, characterized in that, The first candidate frequency domain resource selected by the AMP device during initialization is randomly selected, or the first candidate frequency domain resource selected by the AMP device during initialization is configured by the network, or the first candidate frequency domain resource selected by the AMP device during initialization is determined based on the identifier of the AMP device and / or the identifier of the peer device.

36. The method according to any one of claims 1 to 4, characterized in that, The N candidate frequency domain resources are determined based on at least one frequency hopping pattern.

37. The method as described in claim 36, characterized in that, The at least one frequency hopping pattern is agreed upon by the protocol, or the at least one frequency hopping pattern is configured by the network.

38. The method according to any one of claims 1 to 29, characterized in that, The time unit is one of the following: symbol, time slot, mini-time slot, subframe, second, millisecond, microsecond.

39. The method according to any one of claims 1 to 29, characterized in that, The N candidate frequency domain resources are some or all of the candidate frequency domain resources within the deployment frequency band corresponding to the AMP device; and / or When the AMP device uses the N candidate frequency domain resources to transmit the reference signal, it uses all or part of the resources on each candidate frequency domain resource to transmit the reference signal. And / or, The N candidate frequency domain resources do not overlap, or there are partially overlapping candidate frequency domain resources among the N candidate frequency domain resources.

40. The method according to any one of claims 1 to 29, characterized in that, The reference signal sent by the AMP device includes a frame header or a packet header, or the AMP device sends information carrying a frame header or packet header before sending the reference signal; The frame header or packet header at least carries information about the duration of time that the candidate frequency domain resources have been occupied.

41. The method as described in claim 40, characterized in that, The frame header or packet header also carries at least one of the following: Information used to identify the AMP device; Information used to identify the receiving device; Synchronization / pilot sequences are used by the receiving device to obtain synchronization information; Configuration information of the reference signal sent by the AMP device.

42. The method according to any one of claims 1 to 29, characterized in that, The AMP device transmits reference signals on N candidate frequency domain resources, including: The AMP device transmits reference signals on the N candidate frequency domain resources using active transmission or backscattering.

43. The method according to any one of claims 1 to 29, characterized in that, The candidate frequency domain resources are one of the following: channel, system bandwidth, carrier bandwidth, BWP, aggregation / set / binding of multiple BWPs, aggregation / set / binding of multiple subcarriers, and aggregation / set / binding of multiple PRBs.

44. The method according to any one of claims 1 to 29, characterized in that, The following relationship exists between the number of times W, the duration T1 of a single reference signal transmission by the AMP device, and the time T for the network to schedule the AMP device to communicate: W T1≤T; Where W is a positive integer, and T and T1 are both positive numbers.

45. The method according to any one of claims 1 to 29, characterized in that, The number of times the AMP device sends the reference signal is determined by the protocol, or the number of times the AMP device sends the reference signal is configured by the network; and / or, The duration of a single reference signal transmission by the AMP device is determined by the protocol, or the duration of a single reference signal transmission by the AMP device is configured by the network; and / or, The time interval between two consecutive frequency hopping transmissions of the reference signal by the AMP device is determined by the protocol, or the time interval between two consecutive frequency hopping transmissions of the reference signal by the AMP device is configured by the network; and / or, The maximum duration for the AMP device to transmit reference signals is determined by the protocol, or the maximum duration for the AMP device to transmit reference signals is configured by the network.

46. ​​The method according to any one of claims 1 to 29, characterized in that, Different AMP devices use the same method to determine candidate frequency domain resources for transmitting reference signals based on dual-frequency phase difference for ranging and / or positioning, or different AMP devices use different methods to determine candidate frequency domain resources for transmitting reference signals based on dual-frequency phase difference for ranging and / or positioning.

47. The method according to any one of claims 1 to 29, characterized in that, Different AMP devices use frequency division multiplexing (FDM) to transmit reference signals for ranging and / or positioning based on dual-frequency phase difference.

48. A method for wireless communication, characterized in that, include: The communication equipment receives reference signals transmitted by the ambient AMP device on N candidate frequency domain resources; Wherein, the reference signals transmitted on the N candidate frequency domain resources are used to determine the location of the AMP device or the communication device, and / or, the reference signals transmitted on the N candidate frequency domain resources are used to determine the distance between the AMP device and the communication device, where N is a positive integer and N≥2; The AMP device may have one or more candidate frequency domain resources for transmitting reference signals in the same available time unit. Where the number of candidate frequency domain resources used by the AMP device for transmitting reference signals in the same available time unit is one, the candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on at least one of the following: The candidate frequency domain resources used by the AMP device in the i-th available time unit, the frequency hopping interval, the total number of candidate frequency domain resources in the deployment frequency band corresponding to the AMP device, the smallest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and the largest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device; The candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula: F (i+1) = (F (i) +ΔF) mod M; Among them, F (i+1) F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i) ΔF represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit, ΔF represents the frequency hopping interval, and M represents the total number of candidate frequency domain resources in the deployment frequency band corresponding to the AMP device.

49. The method as described in claim 48, characterized in that, The candidate frequency domain resources for transmitting the reference signal in the i-th available time unit are different from those in the (i+1)-th available time unit, where i is an integer greater than or equal to 0.

50. The method as described in claim 48, characterized in that, The interval between the candidate frequency domain resources for transmitting the reference signal in the i-th available time unit and the candidate frequency domain resources for transmitting the reference signal in the (i+1)-th available time unit is greater than or equal to X frequency domain units, where X is a positive integer.

51. The method as described in claim 50, characterized in that, The frequency domain unit is one of the following: candidate frequency domain resource, channel, system bandwidth, carrier, subcarrier, physical resource block (PRB), bandwidth portion (BWP), megahertz (MHz), kilohertz (kHz), and hertz (Hz).

52. The method as described in claim 48, characterized in that, The frequency hopping interval is a fixed value, or the frequency hopping interval is selected cyclically from a plurality of preset frequency hopping intervals in a first order, or the frequency hopping interval is determined from a plurality of preset frequency hopping intervals based on the value of i, or the frequency hopping interval is determined from a plurality of preset frequency hopping intervals based on the number of the frequency domain resource used on the i-th available time unit.

53. The method as described in claim 48, characterized in that, In F (i) In the case of candidate frequency domain resources available for the AMP device, let F (r) = F (i) The available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula: F (r+1) = (F (r) +ΔF) mod M; If F (r+1) For the candidate frequency domain resources available for the AMP device, then F (i+1) = F (r+1) ; If F (r+1) For candidate frequency domain resources that are unavailable for the AMP device, let r = r + 1, and perform F based on the updated r. (r+1) Calculation; Among them, F (i+1) F represents the number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) ΔF represents the number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit, ΔF represents the frequency hopping interval, and M represents the total number of candidate frequency domain resources in the deployment frequency band corresponding to the AMP device.

54. The method as described in claim 48, characterized in that, The candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are also determined based on the following formula: F (i+1) = (F (i) +ΔF) mod (q+1) + p; Among them, F (i+1) F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i) ΔF represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit, p represents the smallest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and q represents the largest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device. Among them, F (i) and F (i+1) Satisfying: p≤F (i) ≤q ， p≤F (i+1) ≤q.

55. The method as described in claim 48, characterized in that, In F (i) In the case of candidate frequency domain resources available for the AMP device, let F (r) = F (i) The available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula: F (r+1) = (F (r) +ΔF) mod (q+1) + p; If F (r+1) For the candidate frequency domain resources available for the AMP device, then F (i+1) = F (r+1) ; If F (r+1) For candidate frequency domain resources that are unavailable for the AMP device, let r = r + 1, and perform F based on the updated r. (r+1) Calculation; Among them, F (i+1) F represents the number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) ΔF represents the number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit, p represents the smallest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and q represents the largest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device. Among them, F (i) and F (i+1) Satisfying: p≤F (i) ≤q ， p≤F (i+1) ≤q.

56. The method as described in claim 48, characterized in that, The candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are also determined based on the following formula: F (i+1) = (F (i) +ΔF) mod (q k +1) + p k ; Among them, F (i+1) F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i) This represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit, ΔF represents the frequency hopping interval, and p k q represents the smallest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device. k This represents the largest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device; Among them, F (i) and F (i+1) Satisfy: p k ≤F (i) ≤q k， p k ≤F (i+1) ≤q k .

57. The method as described in claim 48, characterized in that, In F (i) In the case of candidate frequency domain resources available for the AMP device, let F (r) = F (i) The available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula: F (r+1) = (F (r) +ΔF) mod (q k +1) + p k ; If F (r+1) For the candidate frequency domain resources available for the AMP device, then F (i+1) = F (r+1) ; If F (r+1) For candidate frequency domain resources that are unavailable for the AMP device, let r = r + 1, and perform F based on the updated r. (r+1) Calculation; Among them, F (i+1) F represents the number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) This represents the number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit, ΔF represents the frequency hopping interval, and p k q represents the smallest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device. k This represents the largest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device; Among them, F (i) and F (i+1) Satisfy: p k ≤F (i) ≤q k， p k ≤F (i+1) ≤q k .

58. The method as described in claim 48, characterized in that, The candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are also determined based on the following formula: F (i+1) = F (i) +(-1) init (-1) S ΔF; Among them, F (i+1) F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i) The value of init represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit. The value of init is 0 or 1, and ΔF represents the frequency hopping interval. Wherein, the initial value of S is 0, and in F (i) +(-1) init (-1) S ΔF<p or F (i) +(-1) init (-1) S ΔF>q, S=S+1, and F is calculated based on the updated S (i+1) , wherein p represents the minimum candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and q represents the maximum candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device; Among them, F (i) and F (i+1) Satisfying: p≤F (i) ≤q ， p≤F (i+1) ≤q.

59. The method as described in claim 48, characterized in that, In F (i) In the case of candidate frequency domain resources available for the AMP device, let F (r) = F (i) The available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula: F (r+1) = F (r) +(-1) init (-1) S ΔF; If F (r+1) For the candidate frequency domain resources available for the AMP device, then F (i+1) = F (r+1) ; If F (r+1) For candidate frequency domain resources that are unavailable for the AMP device, let r = r + 1, and perform F based on the updated r. (r+1) Calculation; Among them, F (i+1) F represents the number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) This indicates the number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit. The value of init is 0 or 1, and ΔF represents the frequency hopping interval. wherein, the initial value of S is 0, when F (i) +(-1) init (-1) S ΔF<p or F (i) +(-1) init (-1) S ΔF>q, S=S+1, and F is calculated based on the updated S (i+1) , p represents the minimum candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and q represents the maximum candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device; Among them, F (i) and F (i+1) Satisfying: p≤F (i) ≤q ， p≤F (i+1) ≤q.

60. The method as described in claim 48, characterized in that, The candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula: F (i+1) = F (i) +(-1) init (-1) S ΔF; Among them, F (i+1) F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i) The value of init represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit. The value of init is 0 or 1, and ΔF represents the frequency hopping interval. Wherein, within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device, the initial value of S is 0, and in F (i) +(-1) init (-1) S ΔF <p k or F (i) +(-1) init (-1) S ΔF>q k In the case of S=S+1, and F is performed based on the updated S. (i+1) The calculation, p k q represents the smallest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device. k This represents the largest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device; Among them, F (i) and F (i+1) Satisfy: p k ≤F (i) ≤q k， p k ≤F (i+1) ≤q k .

61. The method as described in claim 48, characterized in that, In F (i) In the case of candidate frequency domain resources available for the AMP device, let F (r) = F (i) The available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula: F (r+1) = F (r) +(-1) init (-1) S ΔF; If F (r+1) For the candidate frequency domain resources available for the AMP device, then F (i+1) = F (r+1) ; If F (r+1) For candidate frequency domain resources that are unavailable for the AMP device, let r = r + 1, and perform F based on the updated r. (r+1) Calculation; Among them, F (i+1) F represents the number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) This indicates the number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit. The value of init is 0 or 1, and ΔF represents the frequency hopping interval. Wherein, within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device, the initial value of S is 0, and in F (i) +(-1) init (-1) S ΔF <p k or F (i) +(-1) init (-1) S ΔF>q k In the case of S=S+1, and F is performed based on the updated S. (i+1) The calculation, p k q represents the smallest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device. k This represents the largest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device; Among them, F (i) and F (i+1) Satisfy: p k ≤F (i) ≤q k， p k ≤F (i+1) ≤q k .

62. The method as described in claim 48, characterized in that, When the AMP device has multiple candidate frequency domain resources for transmitting reference signals in the same available time unit, the j-th candidate frequency domain resource used by the AMP device in the (i+1)-th available time unit is determined based on at least one of the following: The j-th candidate frequency domain resource used by the AMP device in the i-th available time unit, the frequency hopping interval associated with the j-th candidate frequency domain resource, the total number of candidate frequency domain resources in the deployment frequency band corresponding to the AMP device, the smallest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and the largest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device. Where j is a positive integer.

63. The method as described in claim 62, characterized in that, The frequency hopping interval associated with the j-th candidate frequency domain resource is a fixed value, or the frequency hopping interval associated with the j-th candidate frequency domain resource is cyclically selected from multiple preset frequency hopping intervals according to a second order, or the frequency hopping interval associated with the j-th candidate frequency domain resource is determined from multiple preset frequency hopping intervals based on the value of i, or the frequency hopping interval associated with the j-th candidate frequency domain resource is determined from multiple preset frequency hopping intervals based on the number of the j-th candidate frequency domain resource used on the i-th available time unit.

64. The method as described in claim 62, characterized in that, The candidate frequency domain resource used by the AMP device in the (i+1)th available time unit is determined based on the following formula: F (i+1)_j = (F (i)_j +ΔF ) mod M; Among them, F (i+1)_j F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i)_j ΔF represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit. The frequency hopping interval associated with the j-th candidate frequency domain resource is represented by M, and M represents the total number of candidate frequency domain resources in the deployment frequency band corresponding to the AMP device.

65. The method as described in claim 62, characterized in that, The candidate frequency domain resource used by the AMP device in the (i+1)th available time unit is determined based on the following formula: F (i+1)_j = (F (i)_j +ΔF ) mod (q+1) + p; Among them, F (i+1)_j F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i)_j ΔF represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit. represents the frequency hopping interval associated with the j-th candidate frequency domain resource, p represents the smallest candidate frequency domain resource number within the deployment frequency band corresponding to the AMP device, and q represents the largest candidate frequency domain resource number within the deployment frequency band corresponding to the AMP device; Among them, F (i) _j and F (i+1) _j Satisfying: p≤F (i) _j ≤q ， p≤F (i+1) _j ≤q.

66. The method as described in claim 62, characterized in that, The candidate frequency domain resource used by the AMP device in the (i+1)th available time unit is determined based on the following formula: F (i+1)_j = (F (i)_j +ΔF ) mod (q k +1) + p k ; Among them, F (i+1)_j F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i)_j ΔF represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit. p represents the frequency hopping interval associated with the j-th candidate frequency domain resource. k q represents the smallest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device. k This represents the largest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device; Among them, F (i)_j and F (i+1)_j Satisfy: p k ≤F (i)_j ≤q k， p k ≤F (i+1)_j ≤q k .

67. The method as described in claim 62, characterized in that, The candidate frequency domain resource used by the AMP device in the (i+1)th available time unit is determined based on the following formula: F (i+1)_j = F (i)_j +(-1) init (-1) S ΔF ; Among them, F (i+1)_j F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i)_j This represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit, where init takes the value 0 or 1, and ΔF This represents the frequency hopping interval associated with the j-th candidate frequency domain resource; wherein, an initial value of S is initialized to 0, and in F (i)_j +(-1) init (-1) S ΔF <p or F (i)_j +(-1) init (-1) S ΔF >q, S=S+1, and F is calculated based on the updated S (i+1)_j , wherein p represents the minimum candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and q represents the maximum candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device; Among them, F (i)_j and F (i+1)_j Satisfying: p≤F (i) _j ≤q ， p≤F (i+1) _j ≤q.

68. The method as described in claim 62, characterized in that, The candidate frequency domain resource used by the AMP device in the (i+1)th available time unit is determined based on the following formula: F (i+1)_j = F (i)_j +(-1) init (-1) S ΔF ; Among them, F (i+1)_j F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i)_j This represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit, where init takes the value 0 or 1, and ΔF This represents the frequency hopping interval associated with the j-th candidate frequency domain resource; Wherein, within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device, the initial value of S is 0, and in F (i)_j +(-1) init (-1) S ΔF <p k or F (i)_j +(-1) init (-1) S ΔF >q k In the case of S=S+1, and F is performed based on the updated S. (i+1)_j The calculation, p k q represents the smallest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device. k This represents the largest candidate frequency domain resource number within the candidate frequency domain resource set k associated with the AMP device; Among them, F (i)_j and F (i+1)_j Satisfy: p k ≤F (i) _j ≤q k， p k ≤F (i+1) _j ≤q k .

69. The method as described in claim 62, characterized in that, The AMP device may have multiple candidate frequency domain resources for transmitting reference signals in the same available time unit that are consecutive frequency domain resources, or the AMP device may have multiple candidate frequency domain resources for transmitting reference signals in the same available time unit that are non-consecutive frequency domain resources.

70. The method as described in claim 48, characterized in that, When the number of candidate frequency domain resources for transmitting a reference signal by the AMP device in the same available time unit is one, the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on at least one of the following: The available candidate frequency domain resources used by the AMP device in the i-th available time unit, the frequency hopping interval, the total number of candidate frequency domain resources available to the AMP device in its corresponding deployment frequency band, the smallest relative number of the candidate frequency domain resource available to the AMP device in its corresponding deployment frequency band, and the largest relative number of the candidate frequency domain resource available to the AMP device in its corresponding deployment frequency band.

71. The method as described in claim 70, characterized in that, The frequency hopping interval is a fixed value, or the frequency hopping interval is selected cyclically from a plurality of preset frequency hopping intervals in a first order, or the frequency hopping interval is determined from a plurality of preset frequency hopping intervals based on the value of i, or the frequency hopping interval is determined from a plurality of preset frequency hopping intervals based on the relative number of the available candidate frequency domain resources used on the i-th available time unit.

72. The method as described in claim 70, characterized in that, The available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula: F (i+1) = (F (i) +ΔF) mod M ; Among them, F (i+1) F represents the relative number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) The relative number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit is represented by ΔF, where ΔF represents the frequency hopping interval, and M represents the frequency hopping interval. This represents the total number of candidate frequency domain resources available to the AMP device within its corresponding deployment frequency band.

73. The method as described in claim 70, characterized in that, The available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula: F (i+1) = (F (i) +ΔF) mod (q +1) + p ; Among them, F (i+1) F represents the relative number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) This represents the relative number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit, ΔF represents the frequency hopping interval, and p q represents the smallest relative number of candidate frequency domain resources available to the AMP device within its corresponding deployment frequency band. This represents the relative number of the largest candidate frequency domain resource available to the AMP device within its corresponding deployment frequency band; Among them, F (i) and F (i+1) Satisfy: p ≤F (i) ≤q ， p ≤F (i+1) ≤q .

74. The method as described in claim 70, characterized in that, The available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula: F (i+1) = (F (i) +ΔF) mod (q k +1) + p k ; Among them, F (i+1) F represents the relative number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) This represents the relative number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit, ΔF represents the frequency hopping interval, and p k q represents the smallest available candidate frequency domain resource relative number within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device. k This represents the relative number of the largest available candidate frequency domain resource within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device; Among them, F (i) and F (i+1) Satisfy: p k ≤F (i) ≤q k ， p k ≤F (i+1) ≤q k .

75. The method as described in claim 70, characterized in that, The available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula: F (i+1) = F (i) +(-1) init (-1) S ΔF; Among them, F (i+1) F represents the relative number of the available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit. (i) The value of init represents the relative number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit. The value of init is 0 or 1, and ΔF represents the frequency hopping interval. Where S is initialized to 0, and F (i) +(-1) init (-1) S ΔF <p or F (i) +(-1) init (-1) S ΔF>q In the case of S=S+1, and F is performed based on the updated S. (i+1) The calculation, p q represents the smallest relative number of candidate frequency domain resources available to the AMP device within its corresponding deployment frequency band. This represents the relative number of the largest candidate frequency domain resource available to the AMP device within its corresponding deployment frequency band; Among them, F (i) and F (i+1) Satisfy: p ≤F (i) ≤q ， p ≤F (i+1) ≤q .

76. The method as described in claim 70, characterized in that, The available candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula: F (i+1) = F (i) +(-1) init (-1) S ΔF; Among them, F (i+1) This represents the available candidate frequency domain resources that the AMP device can use in the (i+1)th available time unit. relatively Number, F (i) The value of init represents the relative number of the available candidate frequency domain resources used by the AMP device in the i-th available time unit. The value of init is 0 or 1, and ΔF represents the frequency hopping interval. Wherein, within the candidate frequency domain resource set k associated with the AMP device in the deployment frequency band corresponding to the AMP device, the initial value of S is 0, and in F (i) +(-1) init (-1) S ΔF <p k or F (i) +(-1) init (-1) S ΔF>q k In the case of S=S+1, and F is performed based on the updated S. (i+1) The calculation, p k q represents the smallest available candidate frequency domain resource relative number within the candidate frequency domain resource set k associated with the AMP device. k This represents the relative number of the largest available candidate frequency domain resource within the candidate frequency domain resource set k associated with the AMP device; Among them, F (i) and F (i+1) Satisfy: p k ≤F (i) ≤q k ， p k ≤F (i+1) ≤q k .

77. The method according to any one of claims 55, 57, 59, 61, 70 to 76, characterized in that, The candidate frequency domain resources available to the AMP device in its corresponding deployment frequency band are configured by the network; or, the candidate frequency domain resources available to the AMP device in its corresponding deployment frequency band are preempted and shared by the network device with the AMP device; or, the candidate frequency domain resources available to the AMP device in its corresponding deployment frequency band are preempted by the AMP device.

78. The method as described in claims 58, 59, 60, 61, 67, 68, 75, or 76, characterized in that, The value of init is randomly determined by the AMP device, or the value of init is determined by the network configuration, or the value of init is determined based on the location of the first candidate frequency domain resource selected during initialization, or the value of init is determined based on the identifier of the AMP device and / or the identifier of the receiving device.

79. The method as described in claims 58, 59, 60, 61, 67, 68, 75, or 76, characterized in that, When S=S+1 and there are multiple preset frequency hopping intervals, the frequency hopping interval used by the AMP device is selected from the multiple preset frequency hopping intervals based on a preset order.

80. The method as described in claim 56, 57, 60, 61, 66, 68, 74, or 76, characterized in that, The candidate frequency domain resource set k associated with the AMP device is a candidate frequency domain resource set configured or indicated by the network among multiple candidate frequency domain resource sets within the deployment frequency band corresponding to the AMP device; or, the candidate frequency domain resource set k associated with the AMP device is determined from multiple candidate frequency domain resource sets within the deployment frequency band corresponding to the AMP device based on the identifier of the AMP device and / or the group identifier to which the AMP device belongs; or, the candidate frequency domain resource set k associated with the AMP device is determined from multiple candidate frequency domain resource sets within the deployment frequency band corresponding to the AMP device based on the number of the first candidate frequency domain resource selected during the initialization of the AMP device.

81. The method as described in claim 52, 63, or 71, characterized in that, The values ​​of the multiple preset frequency hopping intervals can be positive and / or negative.

82. The method according to any one of claims 48 to 76, characterized in that, The first candidate frequency domain resource selected by the AMP device during initialization is randomly selected, or the first candidate frequency domain resource selected by the AMP device during initialization is configured by the network, or the first candidate frequency domain resource selected by the AMP device during initialization is determined based on the identifier of the AMP device and / or the identifier of the peer device.

83. The method according to any one of claims 48 to 51, characterized in that, The N candidate frequency domain resources are determined based on at least one frequency hopping pattern.

84. The method as described in claim 83, characterized in that, The at least one frequency hopping pattern is agreed upon by the protocol, or the at least one frequency hopping pattern is configured by the network.

85. The method according to any one of claims 48 to 76, characterized in that, The time unit is one of the following: symbol, time slot, mini-time slot, subframe, second, millisecond, microsecond.

86. The method according to any one of claims 48 to 76, characterized in that, The N candidate frequency domain resources are some or all of the candidate frequency domain resources within the deployment frequency band corresponding to the AMP device; and / or When the AMP device uses the N candidate frequency domain resources to transmit the reference signal, it uses all or part of the resources on each candidate frequency domain resource to transmit the reference signal. And / or, The N candidate frequency domain resources do not overlap, or there are partially overlapping candidate frequency domain resources among the N candidate frequency domain resources.

87. The method according to any one of claims 48 to 76, characterized in that, The reference signal sent by the AMP device includes a frame header or a packet header, or the AMP device sends information carrying a frame header or packet header before sending the reference signal; The frame header or packet header at least carries information about the duration of time that the candidate frequency domain resources have been occupied.

88. The method as described in claim 87, characterized in that, The frame header or packet header also carries at least one of the following: Information used to identify the AMP device; Information used to identify the receiving device; Synchronization / pilot sequences are used by the receiving device to obtain synchronization information; Configuration information of the reference signal sent by the AMP device.

89. The method according to any one of claims 48 to 76, characterized in that, The AMP device transmits reference signals on N candidate frequency domain resources, including: The AMP device transmits reference signals on the N candidate frequency domain resources using active transmission or backscattering.

90. The method according to any one of claims 48 to 76, characterized in that, The candidate frequency domain resources are one of the following: channel, system bandwidth, carrier bandwidth, BWP, aggregation / set / binding of multiple BWPs, aggregation / set / binding of multiple subcarriers, and aggregation / set / binding of multiple PRBs.

91. The method according to any one of claims 48 to 76, characterized in that, The following relationship exists between the number of times W, the duration T1 of a single reference signal transmission by the AMP device, and the time T for the network to schedule the AMP device to communicate: W T1≤T; Where W is a positive integer, and T and T1 are both positive numbers.

92. The method according to any one of claims 48 to 76, characterized in that, The number of times the AMP device sends the reference signal is determined by the protocol, or the number of times the AMP device sends the reference signal is configured by the network; and / or, The duration of a single reference signal transmission by the AMP device is determined by the protocol, or the duration of a single reference signal transmission by the AMP device is configured by the network; and / or, The time interval between two consecutive frequency hopping transmissions of the reference signal by the AMP device is determined by the protocol, or the time interval between two consecutive frequency hopping transmissions of the reference signal by the AMP device is configured by the network; and / or, The maximum duration for the AMP device to transmit reference signals is determined by the protocol, or the maximum duration for the AMP device to transmit reference signals is configured by the network.

93. The method according to any one of claims 48 to 76, characterized in that, Different AMP devices use the same method to determine candidate frequency domain resources for transmitting reference signals based on dual-frequency phase difference for ranging and / or positioning, or different AMP devices use different methods to determine candidate frequency domain resources for transmitting reference signals based on dual-frequency phase difference for ranging and / or positioning.

94. The method according to any one of claims 48 to 76, characterized in that, Different AMP devices use frequency division multiplexing (FDM) to transmit reference signals for ranging and / or positioning based on dual-frequency phase difference.

95. The method according to any one of claims 48 to 76, characterized in that, The communication device is one of the following: access point (AP), station (STA), base station, terminal equipment, or transmit / receive point (TRP).

96. An environmental energy AMP device, characterized in that, include: A communication unit is used to transmit reference signals on N candidate frequency domain resources; Wherein, the reference signals transmitted on the N candidate frequency domain resources are used to determine the location of the AMP device or the receiving device of the reference signal, and / or, the reference signals transmitted on the N candidate frequency domain resources are used to determine the distance between the AMP device and the receiving device of the reference signal, where N is a positive integer and N≥2; The AMP device may have one or more candidate frequency domain resources for transmitting reference signals in the same available time unit. Where the number of candidate frequency domain resources used by the AMP device for transmitting reference signals in the same available time unit is one, the candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on at least one of the following: The candidate frequency domain resources used by the AMP device in the i-th available time unit, the frequency hopping interval, the total number of candidate frequency domain resources in the deployment frequency band corresponding to the AMP device, the smallest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and the largest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device; The candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula: F (i+1) = (F (i) +ΔF) mod M; Among them, F (i+1) F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i) ΔF represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit, ΔF represents the frequency hopping interval, and M represents the total number of candidate frequency domain resources in the deployment frequency band corresponding to the AMP device.

97. A communication device, characterized in that, include: The communication unit is used to receive reference signals sent by the environmental energy AMP device on N candidate frequency domain resources; Wherein, the reference signals transmitted on the N candidate frequency domain resources are used to determine the location of the AMP device or the communication device, and / or, the reference signals transmitted on the N candidate frequency domain resources are used to determine the distance between the AMP device and the communication device, where N is a positive integer and N≥2; The AMP device may have one or more candidate frequency domain resources for transmitting reference signals in the same available time unit. Where the number of candidate frequency domain resources used by the AMP device for transmitting reference signals in the same available time unit is one, the candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on at least one of the following: The candidate frequency domain resources used by the AMP device in the i-th available time unit, the frequency hopping interval, the total number of candidate frequency domain resources in the deployment frequency band corresponding to the AMP device, the smallest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device, and the largest candidate frequency domain resource number in the deployment frequency band corresponding to the AMP device; The candidate frequency domain resources used by the AMP device in the (i+1)th available time unit are determined based on the following formula: F (i+1) = (F (i) +ΔF) mod M; Among them, F (i+1) F represents the number of the candidate frequency domain resource used by the AMP device in the (i+1)th available time unit. (i) ΔF represents the number of the candidate frequency domain resource used by the AMP device in the i-th available time unit, ΔF represents the frequency hopping interval, and M represents the total number of candidate frequency domain resources in the deployment frequency band corresponding to the AMP device.

98. An environmental energy AMP device, characterized in that, include: A processor and a memory, the memory for storing a computer program, the processor for calling and running the computer program stored in the memory, causing the AMP device to perform the method as described in any one of claims 1 to 47.

99. A communication device, characterized in that, include: A processor and a memory, the memory for storing a computer program, the processor for calling and running the computer program stored in the memory, causing the communication device to perform the method as described in any one of claims 48 to 95.

100. A chip, characterized in that, Includes: a processor for retrieving and running a computer program from memory, causing a device on which the chip is mounted to perform the method as described in any one of claims 1 to 47.

101. A chip, characterized in that, Includes: a processor for retrieving and running a computer program from memory, causing a device on which the chip is mounted to perform the method as described in any one of claims 48 to 95.

102. A computer-readable storage medium, characterized in that, Used to store a computer program, which, when executed, implements the method as described in any one of claims 1 to 47.

103. A computer-readable storage medium, characterized in that, Used to store a computer program, which, when executed, implements the method as described in any one of claims 48 to 95.

104. A computer program product, characterized in that, It includes computer program instructions, which, when executed, implement the method as described in any one of claims 1 to 47.

105. A computer program product, characterized in that, It includes computer program instructions, which, when executed, implement the method as described in any one of claims 48 to 95.

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