Transmission method and apparatus, device, and storage medium

Abstract

The present application relates to the field of mobile communications, and discloses a transmission method and apparatus, a device, and a storage medium. The method comprises: a low-power consumption device transmitting information over a Uu link spectrum. The low-power consumption device transmits information over a Uu link spectrum, so as to provide an implementation method of information transmission between the low-power consumption device and an intermediate node and / or a network device; and an implementation method of information transmission between devices in different topological structures corresponding to the low-power consumption device can be determined, thereby supporting a communication system related to the low-power consumption device to be deployed under different topological structures. In the topological structure implemented on the basis of a Uu link, since the Uu link is an existing communication link, the multiplexing of the Uu link spectrum enables the topological structure based on the Uu link spectrum to meet spectrum specifications, thereby reducing implementation costs.

Description

Transmission method, device, equipment and storage medium Technical Field

[0001] The present application relates to the field of mobile communications, and in particular to a transmission method, apparatus, device and storage medium. Background Art

[0002] With the continuous evolution of wireless communication technology, the Internet of Things (IoT) is being applied to all aspects of production and life. Low-power IoT devices, such as ambient power enabled IoT (A-IoT) devices, have simple radio frequency and baseband circuits, offering numerous advantages such as small size, light weight, low price, long service life, and maintenance-free operation.

[0003] In the communication system that introduces low-power devices, the specific implementation of information transmission of low-power devices needs further discussion and research.

[0004] Summary of the Invention

[0005] This application provides a transmission method, apparatus, device, and storage medium. The technical solution is as follows:

[0006] According to one aspect of the present application, a transmission method is provided, the method being performed by a low-power consumption device, the method comprising:

[0007] The low-power device transmits information on the Uu link spectrum.

[0008] According to another aspect of the present application, a transmission method is provided, which is performed by an intermediate node and includes:

[0009] The intermediate node transmits information with the low-power device on the Uu link spectrum;

[0010] The intermediate node includes a node between the low-power device and the network device.

[0011] According to another aspect of the present application, a transmission method is provided, the method being performed by a network device, the method comprising:

[0012] The network device transmits information with the low-power device on the Uu link spectrum.

[0013] According to another aspect of the present application, a transmission device is provided, comprising:

[0014] The transmission module is used to transmit information on the Uu link spectrum.

[0015] According to another aspect of the present application, a transmission device is provided, comprising:

[0016] A transmission module, used to transmit information with low-power devices on the Uu link spectrum;

[0017] The device includes a node between the low-power device and the network device.

[0018] According to another aspect of the present application, a transmission device is provided, comprising:

[0019] The transmission module is used to transmit information with low-power devices on the Uu link spectrum.

[0020] According to another aspect of the present application, a low-power device is provided, comprising: a processor; a transceiver connected to the processor; and a memory for storing executable instructions of the processor; wherein the low-power device is configured to load and execute the executable instructions to implement the transmission method as described in the above aspects.

[0021] According to another aspect of the present application, an intermediate node is provided, comprising: a processor; a transceiver connected to the processor; and a memory for storing executable instructions of the processor; wherein the intermediate node is configured to load and execute the executable instructions to implement the transmission method as described in the above aspects.

[0022] According to another aspect of the present application, a network device is provided, comprising: a processor; a transceiver connected to the processor; and a memory for storing executable instructions of the processor; wherein the network device is configured to load and execute the executable instructions to implement the transmission method as described in the above aspects.

[0023] According to another aspect of the present application, a computer-readable storage medium is provided, in which executable instructions are stored. The executable instructions are loaded and executed by a processor to implement the transmission method as described in the above aspects.

[0024] According to another aspect of the present application, a chip is provided, which includes a programmable logic circuit and / or program instructions. When the chip runs on a computer device, it is used to implement the transmission method described in the above aspects based on the programmable logic circuit and / or program instructions.

[0025] According to another aspect of the present application, a computer program product or computer program is provided, wherein the computer program product or computer program includes computer instructions, wherein the computer instructions are stored in a computer-readable storage medium, and a processor reads and executes the computer instructions from the computer-readable storage medium, so that a computer device executes the transmission method described in the above aspect.

[0026] The technical solutions provided by the embodiments of the present application include at least the following beneficial effects:

[0027] By transmitting information over the Uu link spectrum using low-power devices, a method for implementing information transmission between low-power devices and intermediate nodes and / or network devices is provided. This method can clarify the implementation method for information transmission between devices in different topologies corresponding to low-power devices, thereby supporting the deployment of communication systems involving low-power devices in different topologies. In the above-mentioned topology based on the Uu link, since the Uu link is an existing communication link, by reusing the Uu link spectrum, the topology based on the Uu link spectrum can meet the spectrum specifications, reducing implementation costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0029] FIG1 is a schematic diagram of a low-power communication system provided by an exemplary embodiment of the present application;

[0030] FIG2 is a schematic diagram of radio frequency energy harvesting provided by an exemplary embodiment of the present application;

[0031] FIG3 is a schematic diagram of a backscatter communication process provided by an exemplary embodiment of the present application;

[0032] FIG4 is a schematic diagram of resistive load modulation provided by an exemplary embodiment of the present application;

[0033] FIG5 is a schematic diagram of an encoding method provided by an exemplary embodiment of the present application;

[0034] FIG6 is a schematic diagram of a first topological structure provided by an exemplary embodiment of the present application;

[0035] FIG7 is a schematic diagram of a second topology structure provided by an exemplary embodiment of the present application;

[0036] FIG8 is a schematic diagram of a system architecture of a communication system provided by an exemplary embodiment of the present application;

[0037] FIG9 is a flow chart of a transmission method provided by an exemplary embodiment of the present application;

[0038] FIG10 is a flow chart of a transmission method provided by an exemplary embodiment of the present application;

[0039] FIG11 is a flow chart of a transmission method provided by an exemplary embodiment of the present application;

[0040] FIG12 is a flow chart of a transmission method provided by an exemplary embodiment of the present application;

[0041] FIG13 is a schematic diagram of a spectrum used by a first topology structure provided by an exemplary embodiment of the present application;

[0042] FIG14 is a schematic diagram of a spectrum used by a second topology structure provided by an exemplary embodiment of the present application;

[0043] FIG15 is a flow chart of a transmission method provided by an exemplary embodiment of the present application;

[0044] FIG16 is a schematic diagram of a spectrum used by a first topology structure provided by an exemplary embodiment of the present application;

[0045] FIG17 is a schematic diagram of a spectrum used by a second topology structure provided by an exemplary embodiment of the present application;

[0046] FIG18 is a flow chart of a transmission method provided by an exemplary embodiment of the present application;

[0047] FIG19 is a schematic diagram of a spectrum used by a first topology structure provided by an exemplary embodiment of the present application;

[0048] FIG20 is a schematic diagram of a spectrum used by a second topology structure provided by an exemplary embodiment of the present application;

[0049] FIG21 is a flow chart of a transmission method provided by an exemplary embodiment of the present application;

[0050] FIG22 is a schematic diagram of a spectrum used by a first topology structure provided by an exemplary embodiment of the present application;

[0051] FIG23 is a schematic diagram of a spectrum used by a second topology structure provided by an exemplary embodiment of the present application;

[0052] FIG24 is a flow chart of a transmission method provided by an exemplary embodiment of the present application;

[0053] FIG25 is a schematic diagram of a spectrum used by a first topology structure provided by an exemplary embodiment of the present application;

[0054] FIG26 is a schematic diagram of a spectrum used by a second topology structure provided by an exemplary embodiment of the present application;

[0055] FIG27 is a flow chart of a transmission method provided by an exemplary embodiment of the present application;

[0056] FIG28 is a schematic diagram of a spectrum used by a first topology structure provided by an exemplary embodiment of the present application;

[0057] FIG29 is a schematic diagram of a spectrum used by a second topology structure provided by an exemplary embodiment of the present application;

[0058] FIG30 is a block diagram of a transmission device provided by an exemplary embodiment of the present application;

[0059] FIG31 is a block diagram of a transmission device provided by an exemplary embodiment of the present application;

[0060] FIG32 is a block diagram of a transmission device provided by an exemplary embodiment of the present application;

[0061] FIG33 is a schematic structural diagram of a communication device provided by an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0062] To make the objectives, technical solutions, and advantages of the present application more clear, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings. Exemplary embodiments will be described in detail herein, with examples shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are merely examples of devices and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0063] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. As used in this application and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0064] It should be understood that although the terms first, second, third, etc. may be used in this application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0065] The technical solutions described in some embodiments of the present application can be applied to various communication systems, such as: Global System for Mobile Communications (GSM), Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS) system, Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, NR system evolution system, LTE on unlicensed spectrum (LTE-U) system, NR on unlicensed spectrum (NR-based access to unlicensed spectrum, NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN) system, Wireless Fidelity (Wireless Fidelity) system. The present invention is applicable to the fifth generation mobile communication technology (5G) system, the cellular Internet of Things system, the cellular passive Internet of Things system, and can also be applied to the subsequent evolution system of the 5G NR system, and can also be applied to the sixth generation mobile communication technology (6G) system and subsequent evolution systems.

[0066] It should be understood that in some embodiments of the present application, "5G" may also be referred to as "5G NR" or "NR".

[0067] It should be understood that in the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and being indicated, configuration and being configured, etc.

[0068] Figure 1 shows a schematic diagram of a low-power communication system 100 provided by an exemplary embodiment of the present application, wherein the low-power communication system 100 includes a network device 120 and a low-power device 140. In some embodiments, the low-power device 140 includes a device (IoT device) that uses various environmental energies, such as wireless radio frequency energy, light energy, solar energy, thermal energy, mechanical energy, and other environmental energies to drive itself, and has the characteristics of low power consumption or zero power consumption. Such devices may have no energy storage capacity or may have very limited energy storage capacity (such as using a capacitor with a capacity of tens of uF). In some embodiments, the low-power device 140 includes at least one of a zero-power device, a zero-power IoT device, an ambient IoT device, and a passive IoT device. In some embodiments, the low-power communication in the present application is equivalent to / replaceable with zero-power communication, and the low-power IoT in the present application is equivalent to / replaceable with zero-power IoT.

[0069] The network device 120 is used to send wireless power supply signals, downlink communication signals and receive backscattered signals from the low-power device 140 to the low-power device 140. The low-power device 140 can also be called an ambient power enabled Internet of Things (Ambient IoT) device, which includes an energy collection module 141, a backscattered communication module 142 and a low-power computing module 143. The energy collection module 141 can collect energy carried by radio waves in space, which is used to drive the low-power computing module 143 of the low-power device 140 and realize backscattered communication. After obtaining energy, the low-power device 140 can receive control signaling from the network device 120 and send data to the network device 120 based on the backscattering method according to the control signaling. The sent data can come from data stored in the low-power device 140 itself (such as an identity or pre-written information, such as the production date, brand, manufacturer, etc. of the product).

[0070] Low-power device 140 may also include a sensor module 144 and a memory 145. Sensor module 144 may include various sensors, and low-power device 140 may report data collected by these sensors based on a low-power mechanism. Memory 145 is used to store basic information (such as item identification) or acquired sensor data such as ambient temperature and humidity.

[0071] The low-power device 140 itself does not require a battery, and at the same time, the low-power computing module 143 can perform simple signal demodulation, decoding or encoding, modulation and other simple calculation tasks. Therefore, the low-power device 140 only requires a very simple hardware design, making the low-power device 140 very low in cost and small in size.

[0072] The network device 120 includes but is not limited to: cellular network devices, such as 5G / 6G network devices, base station devices; WiFi / WLAN network devices, such as access points (APs), routers, mobile access points, etc., and the mobile access point is, for example, a mobile phone.

[0073] The low-power device 140 includes but is not limited to: handheld devices, wearable devices, vehicle-mounted devices and Internet of Things devices, etc. The low-power device 140 can be at least one of a mobile phone, a tablet computer, an e-book reader, a laptop computer, a desktop computer, a television, a game console, an augmented reality (AR) terminal, a virtual reality (VR) terminal and a mixed reality (MR) terminal, a wearable device, a handle, an electronic tag and a controller, etc.

[0074] Next, we will further introduce low-power communication:

[0075] Radio Frequency Power Harvesting

[0076] Figure 2 shows a schematic diagram of RF energy harvesting provided by an exemplary embodiment of the present application. RF energy harvesting is based on the principle of electromagnetic induction, using a radio frequency (RF) module to conduct electromagnetic induction and maintain a parallel relationship with a capacitor C and a load resistor R. L By connecting to the CMOS sensor, the energy from electromagnetic waves in space can be collected to generate the energy needed to drive low-power devices, such as demodulators, modulators, sensors, and memory readers. Therefore, low-power devices do not require traditional batteries.

[0077] Backscattering communication

[0078] Figure 3 shows a schematic diagram of a backscatter communication process provided by an exemplary embodiment of the present application. A low-power device 140 receives a wireless signal carrier 131 transmitted by a transmit (TX) module 121 of a network device 120 using an amplifier (AMP) 122, modulates the wireless signal carrier 131, loads the information to be transmitted using a logic processing module 147, and collects radio frequency energy using an energy harvesting module 141. The low-power device 140 uses an antenna 146 to radiate the modulated reflected signal 132. This information transmission process is called backscatter communication. The receive (RX) module 123 of the network device 120 uses a low-noise amplifier (LNA) 124 to receive the modulated reflected signal 132. Backscatter and load modulation functions are inseparable. Load modulation completes the modulation process by adjusting and controlling the circuit parameters of the oscillating circuit of the low-power device 140 according to the rhythm of the data stream, causing parameters such as the impedance of the electronic tag to change accordingly.

[0079] Load modulation technology mainly includes resistance load modulation and capacitance load modulation. FIG4 shows a schematic diagram of resistance load modulation provided by an exemplary embodiment of the present application. In resistance load modulation, the load resistor R L The third resistor R3 is connected in parallel, and the switch S based on the binary code control is turned on or off. The on and off of the third resistor R3 will cause the voltage on the circuit to change. The load resistor R L Maintaining a parallel connection relationship with the first capacitor C1, the load resistor R L Maintain a series connection relationship with the second resistor R2, and the second resistor R2 maintains a series connection relationship with the first inductor L1. The first inductor L1 is coupled to the second inductor L2, and the second inductor L2 maintains a series connection relationship with the second capacitor C2. Amplitude Shift Keying (ASK) modulation can be achieved, that is, the modulation and transmission of the signal is achieved by adjusting the amplitude of the backscattered signal of the low-power device. Similarly, in capacitive load modulation, the circuit resonant frequency can be changed by turning the capacitor on and off, and frequency shift keying (FSK) modulation can be achieved, that is, the modulation and transmission of the signal is achieved by adjusting the operating frequency of the backscattered signal of the low-power device.

[0080] Low-power devices use load modulation to modulate the incoming signal, thus achieving the backscatter communication process. Low-power devices have significant advantages: (1) They do not actively transmit signals, so they do not require complex RF links such as power amplifiers (PAs) and RF filters; (2) They do not need to actively generate high-frequency signals, so they do not require high-frequency crystal oscillators; (3) With backscatter communication, signal transmission does not consume the energy of the low-power device itself.

[0081] ·Extremely low power consumption active transmission technology.

[0082] Low-power devices can also use ultra-low-power active transmission technology. Unlike backscatter, when using ultra-low-power active transmission technology for data transmission, low-power devices use a relatively simple and low-power oscillator to generate the RF carrier, and then modulate the information to be transmitted onto the RF carrier. Based on current research, the power consumption of ultra-low-power active transmitters can be as low as hundreds of microwatts, thus achieving ultra-low-power data transmission.

[0083] Coding method for low-power communication.

[0084] FIG5 shows a schematic diagram of an encoding method provided by an exemplary embodiment of the present application. The data transmitted by the electronic tag can use different forms of codes to represent binary "1" and "0". The wireless radio frequency identification system usually uses one of the following encoding methods: Not Return to Zero (NRZ) encoding, Manchester encoding, Unipolar Return to Zero (URZ) encoding, Differential Binary Phase (DBP) encoding, Miller encoding and differential encoding. That is, different pulse signals can be used to represent 0 and 1.

[0085] (1) NRZ encoding: Non-return-to-zero encoding uses a high level to represent a binary "1" and a low level to represent a binary "0". Figure 5 shows a level diagram of encoding binary data: 101100101001011 using the NRZ method.

[0086] (2) Manchester coding: Manchester coding is also known as split-phase coding. In Manchester coding, the binary value is represented by the change in level (rising or falling) during half a bit period within the bit length. A negative jump during half a bit period represents a binary "1", and a positive jump during half a bit period represents a binary "0". The error in data transmission refers to the situation when the data bits sent by multiple electronic tags at the same time have different values. The received rising and falling edges cancel each other out, resulting in an uninterrupted carrier signal within the entire bit length. Manchester coding cannot have a state without change within the bit length. The reader can use this error to determine the specific location where the collision occurred. Manchester coding is conducive to detecting data transmission errors. When using carrier load modulation or backscatter modulation, it is usually used for data transmission from electronic tags to readers. Figure 5 shows a schematic diagram of the Manchester method to encode binary data: 101100101001011.

[0087] (3) URZ coding: The high level of unipolar return-to-zero coding in the first half bit period represents binary "1", while the low level signal that lasts throughout the entire bit period represents binary "1". Figure 5 shows the level diagram of URZ coding using the URZ method to encode binary data: 101100101001011.

[0088] (4) DBP encoding: Differential biphase encoding uses any edge within a half-bit period to represent a binary "0," while the absence of an edge represents a binary "1." Furthermore, the voltage level is inverted at the beginning of each bit period. This makes the bit beat easier to reconstruct for the receiver. Figure 5 shows a voltage level diagram of the binary data 101100101001011 encoded using the DBP method.

[0089] (5) Miller coding: In Miller coding, any edge within half a bit period represents a binary "1," while a constant level throughout the next bit period represents a binary "0." The level transition at the beginning of a bit period makes it easier for the receiver to reconstruct the bit beat. Figure 5 shows a schematic diagram of the levels of binary data 101100101001011 encoded using the Miller method.

[0090] (6) Differential coding: In differential coding, each binary “1” to be transmitted causes a change in the signal level, while for binary “0”, the signal level remains unchanged.

[0091] Classification of low-power devices.

[0092] Low-power devices can be divided into the following types based on their energy sources and usage:

[0093] (1) Passive low-power devices.

[0094] Low-power devices do not require built-in batteries. When the low-power device approaches the network device, it is within the near field formed by the radiation of the network device's antenna. For example, the network device is a reader / writer of the Radio Frequency Identification (RFID) system. Therefore, the antenna of the low-power device generates an induced current through electromagnetic induction, and the induced current drives the low-power chip circuit of the low-power device. This realizes the demodulation of the forward link (downlink, the link from the network device to the low-power device) signal and the modulation of the backward link (uplink, the link from the low-power device to the network device) signal. For the backscatter link, the low-power device can use backscatter or extremely low-power active transmission to transmit signals.

[0095] Passive low-power devices require no internal batteries for either the forward or reverse link, making them truly low-power (zero-power) devices. They don't require batteries, and their RF and baseband circuits are very simple. For example, they don't require components like LNAs, PAs, crystal oscillators, or analog-to-digital converters (ADCs). These devices offer numerous advantages, including small size, light weight, very low price, and a long service life.

[0096] (2) Semi-passive low-power devices.

[0097] Semi-passive, low-power devices do not have conventional batteries installed. Instead, they use radio frequency energy harvesting modules to harvest radio wave energy, or energy harvesting modules corresponding to solar energy, light energy, thermal energy, kinetic energy, and other energies. The harvested energy is then stored in an energy storage unit, typically a capacitor. After the energy storage unit harvests energy, it drives the low-power chip circuits of the low-power device, performing tasks such as demodulating forward link signals and modulating backward link signals. For backscatter links, low-power devices can use backscatter or extremely low-power active transmission to transmit signals.

[0098] Semi-passive low-power devices require no internal battery for either forward or reverse link operation. Instead, the energy stored in capacitors is derived from radio energy harvested by RF energy harvesting modules, making them truly low-power (zero-power) devices. They inherit many of the advantages of passive low-power devices, including small size, light weight, very low price, and long service life.

[0099] (3) Active low-power devices.

[0100] Low-power devices used in some scenarios can also be active low-power devices. These devices may have built-in batteries (conventional batteries, such as dry cells or rechargeable lithium batteries, can be used). The batteries power the low-power chip circuitry within the low-power device, performing tasks such as demodulating forward link signals and modulating reverse link signals. For backscatter links, however, the low-power device can use backscatter or extremely low-power active transmission to transmit signals. Therefore, the low power consumption of active low-power devices is primarily due to the fact that reverse link signal transmission does not consume the low-power device's own power, but instead uses backscatter. Although active low-power devices use batteries, their ultra-low-power communication technology results in very low power consumption, significantly extending battery life. In active low-power devices, the built-in battery powers the RFID chip, increasing the tag's read and write range and improving communication reliability. Therefore, they are suitable for scenarios with relatively high requirements for communication range and read latency.

[0101] Classification of low-power devices based on transmitter type.

[0102] Low-power IoT services are similar to other IoT services, primarily focusing on uplink services. Low-power IoT devices can be categorized into the following types based on how they send data:

[0103] (1) Low-power devices based on backscattering.

[0104] These low-power devices use backscattering, as described above, for uplink data transmission. They lack active transmitters, only backscattering transmitters. Therefore, when these low-power devices transmit uplink data, they require network equipment to provide a carrier. These low-power devices use backscattering based on the carrier to achieve uplink data transmission.

[0105] (2) Low-power devices based on active transmitters.

[0106] These low-power devices use active transmitters with active transmission capabilities for uplink data transmission. Therefore, when sending uplink data, these low-power devices can use their own active transmitters to send uplink data without the need for network equipment to provide a carrier. Examples of active transmitters suitable for low-power devices include ultra-low-power ASK transmitters and ultra-low-power FSK transmitters. Based on current implementations, these transmitters can reduce overall power consumption to 400-600 microwatts when transmitting a 100-microwatt signal.

[0107] (3) Low-power devices that have both backscatter and active transmitters.

[0108] These low-power devices can support both backscatter and active transmitters. They can determine whether to use backscatter or active transmitters based on different circumstances (e.g., varying battery levels, available ambient energy), or based on network device scheduling.

[0109] Application scenarios of low-power communication.

[0110] Due to its significant advantages such as extremely low cost, low power consumption, and small size, low-power communication can be widely used in various industries, such as logistics for vertical industries, smart warehousing, smart agriculture, energy and electricity, industrial Internet, etc.; it can also be used in personal applications such as smart wearables and smart homes.

[0111] Cellular passive IoT.

[0112] The cellular Internet of Things (IoT) is booming. The 3rd Generation Partnership Project (3GPP) has standardized IoT technologies such as Narrowband-Internet of Things (NB-IoT), Machine-Type Communications (MTC), and Reduced Capability (RedCap). However, IoT communication needs in many scenarios remain unmet. For example:

[0113] Harsh communication environment.

[0114] Certain IoT scenarios may encounter extreme environments such as high temperature, extremely low temperature, high humidity, high voltage, high radiation, or high-speed movement. Examples include ultra-high voltage substations, high-speed train track monitoring, environmental monitoring in high-altitude cold regions, and industrial production lines. In these scenarios, existing IoT devices will not function due to the operating environment limitations of conventional power supplies. Furthermore, extreme operating environments are not conducive to IoT device maintenance, such as battery replacement.

[0115] Requirements for extremely small terminal form factors.

[0116] Certain IoT communication scenarios, such as food traceability, commodity distribution, and smart wearables, require terminals to be extremely small for ease of use. For example, IoT terminals used for commodity management in the distribution process often use electronic tags, which are embedded in the product packaging in a very compact form factor. Another example is lightweight wearable IoT terminals that can meet user needs while improving the user experience.

[0117] Extremely low-cost IoT communication needs.

[0118] Many IoT communication scenarios require IoT terminal devices to be sufficiently low-cost to enhance their competitiveness compared to alternative technologies. For example, in logistics or warehousing scenarios, IoT terminal devices can be attached to each item to facilitate the management of large quantities of circulating items. Communication between the IoT terminal device and the logistics network enables precise management of the entire logistics process and lifecycle. These scenarios require IoT terminal devices to be sufficiently competitively priced.

[0119] Therefore, in order to cover these unmet IoT communication needs, cellular IoT also needs to develop ultra-low-cost, extremely small-size, battery-free / maintenance-free IoT, and low-power IoT can just meet these needs.

[0120] The low-power Internet of Things (IoT), also known as the Ambient IoT (A-IoT) or the passive IoT, refers to devices that use various ambient energies, such as radio frequency energy, light, solar energy, thermal energy, and mechanical energy, to power themselves. These devices may have no energy storage capacity or very limited energy storage capacity (such as using capacitors with a capacity of tens of microfarads). Compared to other IoT devices, A-IoT devices offer many advantages, including the absence of conventional batteries, maintenance-free operation, compact size, low complexity, low cost, and a long lifespan.

[0121] Low-power IoT can be used in at least four scenarios:

[0122] (1) Object recognition, such as logistics, production line product management, and supply chain management;

[0123] (2) Environmental monitoring, such as temperature, humidity, and harmful gas monitoring of the working environment and natural environment;

[0124] (3) Positioning, such as indoor positioning, intelligent object search, and production line item positioning;

[0125] (4) Intelligent control, such as intelligent control of various electrical appliances in smart homes (turning on and off air conditioners, adjusting temperature), and intelligent control of various facilities in agricultural greenhouses (automatic irrigation and fertilization).

[0126] Introduction to communication of low-power devices:

[0127] There are currently at least two types of low-power devices (A-IoT devices):

[0128] Low-power devices with ~1uW peak power consumption, energy storage capability, and an initial sampling frequency offset of 10 Xppm, there is no uplink or downlink power amplifier, and the uplink transmission is sent by backscattering the external carrier.

[0129] Low-power devices with peak power consumption less than a few hundred uW, energy storage capabilities, and an initial sampling deviation of 10 X PPM may be configured with uplink and / or downlink power amplifiers, and can generate uplink transmissions internally through low-power devices, or send uplink transmissions by backscattering an external carrier.

[0130] Low-power devices mainly involve two topologies (deployment scenarios):

[0131] For example, FIG6 is a schematic diagram of a first topology structure provided by an exemplary embodiment of the present application. As shown in FIG6, the topology structure 1 can be represented as a base station (BS) The low-power device 602 and the base station 601 directly perform two-way signaling and / or data communication with the low-power device 602. The base station 601 that sends information to the low-power device 602 and the base station 601 that receives information sent by the low-power device 602 may be two different base stations 601.

[0132] For example, FIG7 is a schematic diagram of a second topology structure provided by an exemplary embodiment of the present application. As shown in FIG7 , topology structure 2 can be represented as a base station intermediate node Low-power device 703. Low-power device 703 performs bidirectional communication with intermediate node 702. Intermediate node 702 can relay signaling and / or data between base station 701 and low-power device 703. In some embodiments, intermediate node 702 is a terminal under network control and is located indoors.

[0133] Taking into account the compatibility with existing cellular networks, low-power devices may adopt different sending / receiving methods in the above two deployment scenarios / topology types. For example, in topology 1, the low-power device can be regarded as a terminal with very weak capabilities. Therefore, when communicating directly with the BS, the cellular downlink can be used as the downlink (receiving) of the low-power device, and the cellular uplink can be used as the uplink (sending) of the low-power device. In topology 2, the low-power device communicates directly with the terminal as an intermediate node. Then, the uplink or downlink design based on the cellular can be used as the uplink of the low-power device, and / or the uplink design based on the cellular can be used as the downlink of the low-power device. In addition, for the transmission from the intermediate node to the low-power device, considering that the intermediate node can generally only work in the cellular uplink mode, the design of the cellular uplink is borrowed here.

[0134] Some possible scenarios are:

[0135] The above topology operates in the frequency division duplexing (FDD) spectrum of the authorized frequency range 1 (FR1).

[0136] Data sent from low-power devices should at least be in the uplink (UL) spectrum.

[0137] The deployed frequency band can be NR spectrum (in-band to NR), LTE or NR protection spectrum (in guard-band to LTE / NR), or independent spectrum (in standalone band).

[0138] For low-power devices, the following methods are used:

[0139] Low-power devices transmit by backscattering an external carrier wave provided by other nodes outside the topology.

[0140] Low-power devices transmit by backscattering an external carrier wave provided by a node within the topology, such as the BS in topology 1 or the BS or intermediate node in topology 2.

[0141] Low-power devices do not need to rely on external internal carriers, and the data to be sent is generated by the low-power device.

[0142] Combined with the above analysis, it can be seen that the capabilities of existing network equipment (BS) and terminals (intermediate nodes) may not be able to support the above-mentioned topology involving low-power devices, and low-power devices may also need to support different capabilities to adapt to different topologies. This application provides device capabilities that different devices need to support in a communication system (A-IoT system) involving low-power devices, thereby supporting the deployment of different topologies involving low-power devices. The device capabilities are related to the uplink and downlink spectrum in which the device works, specifically including:

[0143] (1) Capabilities of low-power devices

[0144] For the downlink (reception) of low-power devices, the low-power devices support at least one of the following reception capabilities: reception on the Uu downlink (DL) spectrum, reception on the Uu uplink (UL) spectrum, and reception on the newly introduced spectrum (e.g., guard-band or standalone-band).

[0145] For the uplink (transmission) of the low-power device, the low-power device supports at least one of the following three transmission capabilities: transmitting on the Uu UL spectrum, transmitting on the Uu DL spectrum, and transmitting on the newly introduced spectrum.

[0146] For different scenarios, the above capabilities can be combined in different ways.

[0147] (2) Capabilities of intermediate nodes (for topology 2 above)

[0148] For the downlink of low-power devices, intermediate nodes support at least one of transmitting to low-power devices on the Uu UL spectrum and transmitting to low-power devices on the newly introduced spectrum.

[0149] For the uplink of low-power devices, the intermediate node supports at least one of the following reception capabilities: receiving transmissions from low-power devices on the Uu UL spectrum, receiving transmissions from low-power devices on the Uu DL spectrum, and receiving transmissions from low-power devices on the newly introduced spectrum.

[0150] The above capabilities can be combined in different scenarios.

[0151] (3) Capabilities of network devices (for topology 1 above)

[0152] The basic capability is to transmit to low-power devices in the Uu DL spectrum and receive transmissions from low-power devices in the Uu UL spectrum.

[0153] For downlinks of low-power devices, network equipment supports transmission to low-power devices on the newly introduced spectrum.

[0154] For uplinks of low-power devices, network equipment supports reception of low-power devices on the newly introduced spectrum.

[0155] By providing corresponding capabilities for low-power devices, intermediate nodes, and network devices in the communication system involving low-power devices, the communication system involving low-power devices can be deployed in different topologies (deployment scenarios).

[0156] 8 shows a schematic diagram of a system architecture of a communication system 800 provided in one embodiment of the present application. The system architecture may include: a terminal 10, an access network device 20, and a core network device 30.

[0157] The terminal 10 may refer to a UE (User Equipment), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a wireless communication device, a user agent, or a user apparatus. Alternatively, the terminal may also be a cellular phone, a cordless phone, a SIP (Session Initiation Protocol) phone, a WLL (Wireless Local Loop) station, a PDA (Personal Digital Assistant), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal in a 5GS (5th Generation System) or a terminal in a future-evolved PLMN (Public Land Mobile Network), etc., and the embodiments of the present application are not limited thereto. For ease of description, the above-mentioned devices are collectively referred to as terminals. In some embodiments, a communication connection is established between the terminal 10 and a low-power device, thereby transmitting data and / or signaling with the low-power device.

[0158] It should be noted that there are usually multiple terminals 10. One or more terminals 10 can be distributed within each cell managed by the access network device 20. Furthermore, one or more terminals 10 can also be distributed outside the cell managed by the access network device 20. Different terminals 10 can communicate with each other based on sidelinks.

[0159] Access network equipment 20 is a device deployed in an access network to provide wireless communication capabilities for terminal 10. Access network equipment 20 may include various forms of macro base stations, micro base stations, relay stations, access points, and the like. In systems employing different wireless access technologies, the names of devices that provide access network equipment functions may vary. For example, in 5G NR systems, they are referred to as gNodeBs or gNBs. As communication technologies evolve, the term "access network equipment" may change. For ease of description, in the embodiments of this application, the aforementioned devices that provide wireless communication capabilities for terminal 10 are collectively referred to as access network equipment. Optionally, a communication relationship can be established between terminal 10 and core network equipment 30 through access network equipment 20. For example, in a Long Term Evolution (LTE) system, access network equipment 20 may be an Evolved Universal Terrestrial Radio Access Network (EUTRAN) or one or more eNodeBs in EUTRAN; in a 5G NR system, access network equipment 20 may be a RAN or one or more gNBs in the RAN.

[0160] The core network equipment 30 primarily provides user connectivity, user management, and service bearering, serving as a bearer network interface to external networks. For example, the core network equipment in a 5G NR system may include devices such as an AMF (Access and Mobility Management Function) entity, a UPF (User Plane Function) entity, and an SMF (Session Management Function) entity. The access network equipment 20 and the core network equipment 30 may be collectively referred to as network equipment.

[0161] In one example, the access network device 20 and the core network device 30 communicate with each other via an air technology, such as the NG interface in a 5G NR system. The access network device 20 and the terminal 10 communicate with each other via an air technology, such as the Uu interface. The terminals 10 communicate with each other via an air technology, such as the PC5 interface.

[0162] FIG9 is a flow chart of a transmission method provided by an exemplary embodiment of the present application. The method may be performed by a low-power device. The method includes:

[0163] Step 902: The low-power device transmits information on the Uu link spectrum.

[0164] In some embodiments, low-power devices include devices that use ambient energy, such as radio frequency energy, light energy, solar energy, thermal energy, mechanical energy, or other ambient energy for their operation. In some embodiments, low-power devices have no energy storage capability or have limited energy storage capability. In some embodiments, low-power devices are equivalent to or can be replaced by zero-power devices, zero-power IoT devices, ambient-energy IoT (A-IoT) devices, or passive IoT devices.

[0165] The Uu link spectrum is the spectrum resource used by the Uu link. In some embodiments, the Uu link spectrum is equivalent to / replaceable with the Uu spectrum. In some embodiments, the Uu link is a communication link established based on the Uu interface. In some embodiments, the Uu link is a communication link established between an access network device (e.g., a base station) and a user device (e.g., a terminal) through the Uu interface. The Uu link is different from the sidelink of device-to-device (D2D) communication and vehicle-to-X (V2X) communication. In some embodiments, the cellular spectrum used by the 3GPP communication system may be referred to as the Uu spectrum. In some embodiments, according to the duplex mode on different Uu spectra, the Uu spectrum can be divided into TDD (Time Division Duplex) spectrum and FDD (Frequency Division Duplex) spectrum. Among them, the FDD spectrum uses two symmetrical frequency channels for Uu uplink (UE transmission) and Uu downlink (UE reception), respectively, and reserves a certain spectrum protection interval between the two. In addition, spectrum resources for other radio technologies may also be allocated in the spectrum specifications, such as spectrum resources for satellites, Wi-Fi, emergency rescue, etc.

[0166] In some embodiments, the Uu UL spectrum in the present application includes the spectrum used for uplink in the FDD spectrum, and the Uu DL spectrum in the present application includes the spectrum used for downlink in the FDD spectrum. In some embodiments, the FDD spectrum belongs to FR1.

[0167] In some embodiments, the low-power device transmits information including at least one of sending information and receiving information. The information transmitted by the low-power device includes at least one of signaling, data, and a reference signal.

[0168] In some embodiments, a low-power device transmits information with an intermediate node over the Uu link spectrum. The intermediate node comprises a node between the low-power device and the network device. The intermediate node establishes communication connections with both the low-power device and the network device. In some embodiments, the intermediate node is used to relay information between the network device and the low-power device. In some embodiments, the intermediate node is a terminal.

[0169] In some embodiments, the low-power device transmits information with the network device on the Uu link spectrum. In some embodiments, the network device includes an access network device, such as a base station.

[0170] In some embodiments, the low-power device sends information on at least one of the Uu UL spectrum and the Uu DL spectrum (for example, the low-power device 602 in FIG. 6 sends information to the network device 601, and / or the low-power device 703 in FIG. 7 sends information to the intermediate node 702), and / or the low-power device receives information on at least one of the Uu UL spectrum and the Uu DL spectrum (for example, the low-power device 602 in FIG. 6 receives information sent by the network device 601, and / or the low-power device 703 in FIG. 7 receives information sent by the intermediate node 702). The Uu UL is a communication link for the user equipment to send information to the access network device, and the Uu DL is a communication link for the access network device to send information to the user equipment.

[0171] In some embodiments, the low-power device transmits information to the intermediate node using at least one of the Uu UL spectrum and the Uu DL spectrum. In some embodiments, the low-power device receives information transmitted by the intermediate node using at least one of the Uu UL spectrum and the Uu DL spectrum. In some embodiments, the low-power device transmits information to the network device using at least one of the Uu UL spectrum and the Uu DL spectrum. In some embodiments, the low-power device receives information transmitted by the network device using at least one of the Uu UL spectrum and the Uu DL spectrum. In some embodiments, the low-power device transmits information to the intermediate node and / or the network device using a spectrum other than the Uu link spectrum.

[0172] 6 , in topology 1, the low-power device 602 may send information to the network device 601 on the Uu UL spectrum and / or send information to the network device 601 on a spectrum other than the Uu link spectrum. The low-power device 602 may receive information sent by the network device 601 on the Uu DL spectrum and / or receive information sent by the network device 601 on a spectrum other than the Uu link spectrum.

[0173] For example, with continued reference to FIG7 , in topology 2, the low-power device 703 can send information to the intermediate node 702 using at least one of a Uu UL spectrum, a Uu DL spectrum, and a spectrum other than the Uu link spectrum. The low-power device 703 can receive information sent by the intermediate node 702 using a spectrum other than the Uu UL spectrum and / or the Uu link spectrum. The intermediate node 702 can send information to the network device 701 using the Uu UL spectrum. The intermediate node 702 can receive information sent by the network device 701 using the Uu DL spectrum.

[0174] For the above information transmission, the relevant equipment must have corresponding capabilities. The following introduces the capabilities of low-power devices, intermediate nodes, and network equipment.

[0175] In some embodiments, the low-power device has at least one of a first capability, a third capability, a fifth capability, a sixth capability, an eighth capability, and an eleventh capability. The first capability, the third capability, and the eighth capability correspond to transmission by the low-power device, and the fifth capability, the sixth capability, and the eleventh capability correspond to reception by the low-power device. In some embodiments, the first capability indicates that the low-power device supports sending information on the UU UL spectrum. The third capability indicates that the low-power device supports sending information on the UU DL spectrum. The fifth capability indicates that the low-power device supports receiving information on the UU DL spectrum. The sixth capability indicates that the low-power device supports receiving information on the UU UL spectrum. The eighth capability indicates that the low-power device supports sending information on the first spectrum. The eleventh capability indicates that the low-power device supports receiving information on the first spectrum.

[0176] In some embodiments, the intermediate device has at least one of a second capability, a fourth capability, a seventh capability, a tenth capability, and a thirteenth capability. The second, fourth, and tenth capabilities correspond to reception by the intermediate node, while the seventh and thirteenth capabilities correspond to transmission by the intermediate node. In some embodiments, the second capability indicates that the intermediate node supports receiving information sent by a low-power device over the Uu UL spectrum. The fourth capability indicates that the intermediate node supports receiving information sent by a low-power device over the Uu DL spectrum. The seventh capability indicates that the intermediate node supports sending information to a low-power device over the Uu UL spectrum. The tenth capability indicates that the intermediate node supports receiving information sent by a low-power device over the first spectrum. The thirteenth capability indicates that the intermediate node supports sending information to a low-power device over the first spectrum.

[0177] In some embodiments, the network device has at least one of the ninth capability and the twelfth capability. The ninth capability corresponds to receiving on the network device, and the twelfth capability corresponds to sending on the network device. For details, see the following description. In some embodiments, the ninth capability indicates that the network device supports receiving information sent by a low-power device over a first spectrum. The twelfth capability indicates that the network device supports sending information to a low-power device over the first spectrum.

[0178] Capabilities for low-power devices:

[0179] In some embodiments, when the low-power device has a first capability, the low-power device sends information on the Uu UL spectrum. The first capability is used to indicate that the low-power device supports sending information on the Uu UL spectrum.

[0180] In some embodiments, the low-power device transmitting information over the Uu UL spectrum includes at least one of the low-power device transmitting information to a network device over the Uu UL spectrum and the low-power device transmitting information to an intermediate node over the Uu UL spectrum. In this case, the intermediate node has a second capability. The second capability is used to indicate that the intermediate node supports receiving information sent by the low-power device over the Uu UL spectrum.

[0181] In some embodiments, when the low-power device has a third capability, the low-power device transmits information over the Uu DL spectrum. The third capability indicates that the low-power device supports transmitting information over the Uu DL spectrum. In some embodiments, the low-power device transmits information to the intermediate node over the Uu DL spectrum. In this case, the intermediate node has a fourth capability. The fourth capability indicates that the intermediate node supports receiving information sent by the low-power device over the Uu DL spectrum.

[0182] In some embodiments, if the low-power device has the fifth capability, the low-power device receives information over the Uu DL spectrum. The fifth capability is used to indicate that the low-power device supports receiving information over the Uu DL spectrum. In some embodiments, the low-power device receives information sent by the network device over the Uu DL spectrum.

[0183] In some embodiments, when the low-power device has a sixth capability, the low-power device receives information over the UU UL spectrum. The sixth capability indicates that the low-power device supports receiving information over the UU UL spectrum. In some embodiments, the low-power device receives information sent by an intermediate node over the UU UL spectrum. In this case, the intermediate node has a seventh capability. The seventh capability indicates that the intermediate node supports sending information to the low-power device over the UU UL spectrum.

[0184] In some embodiments, when the low-power device has the eighth capability, the low-power device sends information on the first spectrum. The eighth capability is used to indicate that the low-power device supports sending information on the first spectrum. In some embodiments, the first spectrum includes at least one of a guard spectrum (guard-band) and an independent spectrum (SA-band). In some embodiments, the guard spectrum belongs to the cellular spectrum, and the guard spectrum includes a portion of bandwidth reserved around (edge ​​of) the used spectrum in the cellular spectrum as a guard interval spectrum to avoid mutual interference between adjacent frequency bands. In some embodiments, the independent spectrum includes a spectrum outside the cellular spectrum that is independent of the cellular spectrum.

[0185] In some embodiments, the low-power device transmitting information over the first spectrum includes at least one of the low-power device transmitting information to the network device over the first spectrum and the low-power device transmitting information to the intermediate node over the first spectrum. In this case, the network device has a ninth capability, and the intermediate node has a tenth capability. The ninth capability indicates that the network device supports receiving information sent by the low-power device over the first spectrum. The tenth capability indicates that the intermediate node supports receiving information sent by the low-power device over the first spectrum.

[0186] In some embodiments, when the low-power device has an eleventh capability, the low-power device receives information on the first spectrum. The eleventh capability is used to indicate that the low-power device supports receiving information on the first spectrum.

[0187] In some embodiments, receiving information on the first spectrum by the low-power device includes at least one of receiving information sent by the network device on the first spectrum and receiving information sent by the intermediate node on the first spectrum. In this case, the network device has a twelfth capability, and the intermediate node has a thirteenth capability. The twelfth capability indicates that the network device supports sending information to the low-power device on the first spectrum. The thirteenth capability indicates that the intermediate node supports sending information to the low-power device on the first spectrum.

[0188] In some embodiments, the capabilities of the low-power device are notified to intermediate nodes and / or network devices via higher-layer signaling. The capabilities of the low-power device indicate the spectrum used to transmit information. The capabilities of the low-power device include at least one of the first, third, fifth, sixth, eighth, and eleventh capabilities described above.

[0189] It should be noted that the sending and receiving capabilities of the low-power devices can be freely combined, and the embodiments of the present application do not limit this. The following describes possible combinations.

[0190] Case 1: The low-power device has at least one of the following two different receiving capabilities, and the low-power device has the first capability to support sending information on the Uu UL spectrum. The following two capabilities are applicable to two different topologies respectively.

[0191] (1) Capability 1-1 (fifth capability): The low-power device supports receiving information sent from network devices on the Uu DL spectrum, applicable to topology 1.

[0192] (2) Capability 1-2 (sixth capability): The low-power device supports receiving information sent from the intermediate node on the Uu UL spectrum, applicable to topology 2.

[0193] The above content is for illustration of implementing the sending capability and receiving capability of the low-power device as different capabilities. In some embodiments, the first capability and at least one of the fifth capability and the sixth capability are combined into one capability.

[0194] Case 2: The low-power device has at least one of the following two different receiving and transmitting capabilities. The following two capabilities are applicable to two different topologies.

[0195] (1) Capability 2-1 (fifth capability + first capability): The low-power device supports receiving information sent by the network device on the Uu DL spectrum, and supports sending information to the network device on the Uu UL spectrum, applicable to topology structure 1.

[0196] (2) Capability 2-2 (sixth capability + third capability): The low-power device supports receiving information sent by the intermediate node on the Uu UL spectrum, and supports sending information to the intermediate node on the Uu DL spectrum, applicable to topology structure 2.

[0197] The above description combines the sending capability and receiving capability of the low-power device into one capability. In some embodiments, the sending capability and receiving capability are implemented as different capabilities.

[0198] Case 3: The low-power device has at least one of the following two different receiving capabilities, and the low-power device has an eighth capability that supports sending information on the first spectrum. The following two capabilities are applicable to two different topologies respectively.

[0199] (1) Capability 3-1 (fifth capability): The low-power device supports receiving information sent from network devices on the Uu DL spectrum, applicable to topology 1.

[0200] (2) Capability 3-2 (sixth capability): The low-power device supports receiving information sent from the intermediate node on the Uu UL spectrum, applicable to topology 2.

[0201] The above content is for illustration of implementing the sending capability and receiving capability of the low-power device as different capabilities. In some embodiments, the eighth capability is combined with at least one of the fifth capability and the sixth capability into one capability.

[0202] Case 4: The low-power device has the eleventh capability, supporting information reception on the first spectrum. The low-power device also has the first capability, supporting information transmission on the Uu UL spectrum. This case can be applied to two different topologies, and no different capabilities need to be introduced for the low-power device.

[0203] In some embodiments, the transmission capability and the reception capability of the low-power device are combined into one capability. In some embodiments, the transmission capability and the reception capability are implemented as different capabilities.

[0204] Case 5: The low-power device has at least one of the following two different transmission capabilities, and the low-power device has an eleventh capability that supports receiving information on the first spectrum. The following two capabilities are applicable to two different topologies.

[0205] (1) Capability 5-1 (first capability): The low-power device supports sending information to the network device on the Uu UL spectrum, applicable to topology 1.

[0206] (2) Capability 5-2 (third capability): Low-power devices support sending information to intermediate nodes on the Uu DL spectrum, applicable to topology 2.

[0207] The above content is for illustration of implementing the sending capability and receiving capability of the low-power device as different capabilities. In some embodiments, the eleventh capability is combined with at least one of the first capability and the third capability into one capability.

[0208] Case 6: The low-power device has capability 11, supporting information reception on the first spectrum. It also has capability 8, supporting information transmission on the first spectrum. It is also transmitting uplink. This case can be applied to two different topologies, without requiring different capabilities for the low-power device.

[0209] In some embodiments, the transmission capability and the reception capability of the low-power device are combined into one capability. In some embodiments, the transmission capability and the reception capability are implemented as different capabilities.

[0210] It should be noted that, in some embodiments, the first capability, third capability, fifth capability, sixth capability, eighth capability and eleventh capability of the low-power device are respectively implemented as different capabilities. In some embodiments, two or more of the first capability, third capability, fifth capability, sixth capability, eighth capability and eleventh capability of the low-power device are combined to implement the same capability. In the case where multiple capabilities of the low-power device are combined to implement one capability, the combined capabilities include multiple reception-related capabilities, multiple transmission-related capabilities, or reception-related capabilities and transmission-related capabilities of the low-power device. For the six situations corresponding to the above-mentioned low-power devices, there can be further combinations. For example, if situation 1 and situation 2 are combined, the low-power device has the first capability, the third capability, the fifth capability, and the sixth capability, and these four capabilities can be further combined. If situation 1 and situation 4 are combined, the low-power device has the first capability, the fifth capability, the sixth capability, and the eleventh capability, and these four capabilities can be further combined.

[0211] Capabilities for intermediate nodes:

[0212] In some embodiments, when the intermediate node has the second capability, the intermediate node receives information sent by the low-power device over the UU UL spectrum. In this case, the low-power device has the first capability. The second capability indicates that the intermediate node supports receiving information sent by the low-power device over the UU UL spectrum. The first capability indicates that the low-power device supports sending information over the UU UL spectrum.

[0213] In some embodiments, when the intermediate node has the fourth capability, the intermediate node receives information sent by the low-power device over the Uu DL spectrum. In this case, the low-power device has the third capability. The fourth capability indicates that the intermediate node supports receiving information sent by the low-power device over the Uu DL spectrum. The third capability indicates that the low-power device supports sending information over the Uu DL spectrum.

[0214] In some embodiments, when the intermediate node has the seventh capability, the intermediate node sends information to the low-power device over the Uu UL spectrum. In this case, the low-power device has the sixth capability. The seventh capability indicates that the intermediate node supports sending information to the low-power device over the Uu UL spectrum. The sixth capability indicates that the low-power device supports receiving information over the Uu UL spectrum.

[0215] In some embodiments, when the intermediate node has the tenth capability, the intermediate node receives information sent by the low-power device over the first spectrum. In this case, the low-power device has the eighth capability. The tenth capability indicates that the intermediate node supports receiving information sent by the low-power device over the first spectrum. The eighth capability indicates that the low-power device supports sending information over the first spectrum.

[0216] In some embodiments, when the intermediate node has the thirteenth capability, the intermediate node sends information to the low-power device over the first spectrum. In this case, the low-power device has the eleventh capability. The thirteenth capability indicates that the intermediate node supports sending information to the low-power device over the first spectrum. The eleventh capability indicates that the low-power device supports receiving information over the first spectrum.

[0217] It should be noted that the sending and receiving capabilities of the intermediate nodes can be freely combined, and the embodiments of the present application do not limit this. Corresponding to the introduction of Cases 1 to 6 of the low-power device in the previous text, the following introduces the possible capability combinations of the intermediate nodes.

[0218] Case 1: The intermediate node has the seventh capability, supporting sending information to the low-power device on the Uu UL spectrum, and has the second capability, supporting receiving information sent by the low-power device on the Uu UL spectrum.

[0219] In some embodiments, the transmitting and receiving capabilities of the intermediate node are combined into a single capability. In some embodiments, the transmitting and receiving capabilities are implemented as separate capabilities. In some embodiments, when the intermediate node is implemented as a terminal, the aforementioned capabilities are additional capabilities possessed by the terminal as an intermediate node compared to existing terminals.

[0220] Case 2: The intermediate node has the fourth capability, supporting receiving information sent by the low-power device on the Uu DL spectrum, and has the seventh capability, supporting sending information to the low-power device on the Uu UL spectrum.

[0221] In some embodiments, the transmitting and receiving capabilities of the intermediate node are combined into a single capability. In some embodiments, the transmitting and receiving capabilities are implemented as separate capabilities. In some embodiments, when the intermediate node is implemented as a terminal, the aforementioned capabilities are additional capabilities possessed by the terminal as an intermediate node compared to existing terminals.

[0222] Case 3: The intermediate node has the seventh capability, supporting sending information to the low-power device on the Uu UL spectrum, and has the tenth capability, supporting receiving information sent by the low-power device on the first spectrum.

[0223] In some embodiments, the transmitting and receiving capabilities of the intermediate node are combined into a single capability. In some embodiments, the transmitting and receiving capabilities are implemented as separate capabilities. In some embodiments, when the intermediate node is implemented as a terminal, the aforementioned capabilities are additional capabilities possessed by the terminal as an intermediate node compared to existing terminals.

[0224] Case 4: The intermediate node has the thirteenth capability, supporting sending information to the low-power device on the first spectrum, and has the second capability, supporting receiving information sent by the low-power device on the Uu UL spectrum.

[0225] In some embodiments, the transmitting and receiving capabilities of the intermediate node are combined into a single capability. In some embodiments, the transmitting and receiving capabilities are implemented as separate capabilities. In some embodiments, when the intermediate node is implemented as a terminal, the aforementioned capabilities are additional capabilities possessed by the terminal as an intermediate node compared to existing terminals.

[0226] Case 5: The intermediate node has the thirteenth capability, supporting sending information to the low-power device on the first spectrum, and has the fourth capability, supporting receiving information sent by the low-power device on the Uu DL spectrum.

[0227] In some embodiments, the transmitting and receiving capabilities of the intermediate node are combined into a single capability. In some embodiments, the transmitting and receiving capabilities are implemented as separate capabilities. In some embodiments, when the intermediate node is implemented as a terminal, the aforementioned capabilities are additional capabilities possessed by the terminal as an intermediate node compared to existing terminals.

[0228] Case 6: The intermediate node has the thirteenth capability, supporting sending information to the low-power device on the first spectrum, and has the tenth capability, supporting receiving information sent by the low-power device on the first spectrum.

[0229] In some embodiments, the transmitting and receiving capabilities of the intermediate node are combined into a single capability. In some embodiments, the transmitting and receiving capabilities are implemented as separate capabilities. In some embodiments, when the intermediate node is implemented as a terminal, the aforementioned capabilities are additional capabilities possessed by the terminal as an intermediate node compared to existing terminals.

[0230] It should be noted that in some embodiments, the second, fourth, seventh, tenth, and thirteenth capabilities of an intermediate node are implemented as different capabilities. In some embodiments, two or more of the second, fourth, seventh, tenth, and thirteenth capabilities of an intermediate node are combined to form a single capability. When multiple capabilities of an intermediate node are combined to form a single capability, the combined capabilities may include multiple receive-related capabilities, multiple transmit-related capabilities, or both receive-related and transmit-related capabilities. Further combinations are possible for the six scenarios corresponding to the intermediate node described above. For example, combining scenarios 1 and 2 results in the intermediate node having the second, fourth, and seventh capabilities, and these three capabilities can be further combined. Combining scenarios 1 and 4 results in the intermediate node having the second, seventh, and thirteenth capabilities, and these three capabilities can be further combined.

[0231] Capabilities for network devices:

[0232] In some embodiments, a network device receives information sent by a low-power device over a Uu UL spectrum. In this case, the low-power device has a first capability. The first capability is used to indicate that the low-power device supports sending information over the Uu UL spectrum.

[0233] In some embodiments, the network device sends information to the low-power device over the Uu DL spectrum. In this case, the low-power device has a fifth capability. The fifth capability is used to indicate that the low-power device supports receiving information over the Uu DL spectrum.

[0234] In some embodiments, when the network device has the ninth capability, the network device receives information sent by the low-power device over the first spectrum. In this case, the low-power device has the eighth capability. The ninth capability indicates that the network device supports receiving information sent by the low-power device over the first spectrum. The eighth capability indicates that the low-power device supports sending information over the first spectrum.

[0235] In some embodiments, when a network device has the twelfth capability, the network device transmits information to a low-power device over a first spectrum. In this case, the low-power device has the eleventh capability. The first spectrum includes at least one of a protected spectrum and an independent spectrum. The twelfth capability indicates that the network device supports transmitting information to the low-power device over the first spectrum. The eleventh capability indicates that the low-power device supports receiving information over the first spectrum.

[0236] It should be noted that the capabilities corresponding to the transmission and reception of the above-mentioned network devices can be freely combined, and the embodiments of the present application do not limit this. Corresponding to the introduction of Cases 1 to 6 of the low-power device in the previous text, the following introduces the possible capability combinations of network devices.

[0237] Case 1: The network device has the same capabilities as existing network devices and has no new capabilities.

[0238] Case 2: The network device has the same capabilities as existing network devices and has no new capabilities.

[0239] Case 3: The network device has the ninth capability and supports receiving information sent by the low-power device on the first spectrum.

[0240] In some embodiments, when the network device is implemented as an access network device, the above capabilities are additional capabilities possessed by the access network device compared to existing access network devices.

[0241] Case 4: The network device has the twelfth capability and supports sending information to the low-power device on the first spectrum.

[0242] In some embodiments, when the network device is implemented as an access network device, the above capabilities are additional capabilities possessed by the access network device compared to existing access network devices.

[0243] Case 5: The network device has the twelfth capability and supports sending information to the low-power device on the first spectrum.

[0244] In some embodiments, when the network device is implemented as an access network device, the above capabilities are additional capabilities possessed by the access network device compared to existing access network devices.

[0245] Case 6: The network device has the twelfth capability, supporting sending information to the low-power device on the first spectrum, and has the ninth capability, supporting receiving information sent by the low-power device on the first spectrum.

[0246] In some embodiments, the transmit capability and receive capability of the network device are combined into a single capability. In some embodiments, the transmit capability and receive capability are implemented as separate capabilities. In some embodiments, when the network device is implemented as an access network device, the capabilities described above are additional capabilities possessed by the access network device compared to existing access network devices.

[0247] It should be noted that in some embodiments, the ninth and twelfth capabilities of a network device are implemented as different capabilities. In some embodiments, the ninth and twelfth capabilities of a network device are combined to form a single capability. Further combinations are possible for the six scenarios corresponding to the aforementioned network devices. For example, combining scenarios 3 and 4 results in the network device having both the ninth and twelfth capabilities, and these two capabilities can be further combined. Combining scenarios 3 and 6 results in the network device having both the ninth and twelfth capabilities, and these two capabilities can be further combined.

[0248] In summary, the method provided in this embodiment transmits information on the Uu link spectrum through a low-power device, provides an implementation method for information transmission between a low-power device and an intermediate node and / or network device, and can clarify the implementation method for information transmission between devices in different topologies corresponding to the low-power device, thereby supporting the deployment of communication systems involving low-power devices in different topologies. In the above-mentioned topology structure implemented based on the Uu link, since the Uu link is an existing communication link, by reusing the Uu link spectrum, the topology structure based on the Uu link spectrum can meet the spectrum specifications, reducing the implementation cost.

[0249] The method provided in this embodiment also provides a plurality of implementation methods applicable to different topologies for low-power devices to send information to intermediate nodes and / or network devices by sending information to intermediate nodes and / or network devices on the Uu UL spectrum, sending information to intermediate nodes on the Uu DL spectrum, and sending information to intermediate nodes and / or network devices on the first spectrum through a low-power device. The method also provides a plurality of implementation methods applicable to different topologies for low-power devices to receive information from intermediate nodes and / or network devices by receiving information sent by network devices on the Uu DL spectrum, receiving information sent by intermediate nodes on the Uu UL spectrum, and receiving information sent by intermediate nodes and / or network devices on the first spectrum through a low-power device. In addition, since the Uu link has a wide coverage range, the communication coverage range for low-power devices can be improved.

[0250] FIG10 is a flow chart of a transmission method provided by an exemplary embodiment of the present application. The method may be performed by an intermediate node. The method includes:

[0251] Step 1002: The intermediate node transmits information with the low-power device on the Uu link spectrum.

[0252] In some embodiments, low-power devices include devices that use ambient energy for power. In some embodiments, low-power devices have no energy storage capability or have limited energy storage capability. In some embodiments, low-power devices are equivalent to or can be replaced by zero-power devices, zero-power IoT devices, A-IoT devices, or passive IoT devices.

[0253] The Uu link spectrum is the spectrum resource used by the Uu link. In some embodiments, the Uu link spectrum is equivalent to / replaceable with the Uu spectrum. In some embodiments, the Uu link is a communication link established based on the Uu interface. In some embodiments, the Uu link is a communication link established between the access network device and the user equipment through the Uu interface. The Uu link is different from the sidelink of D2D communication and V2X communication. In some embodiments, the cellular spectrum used by the 3GPP communication system can be called the Uu spectrum. In some embodiments, the Uu spectrum is divided into TDD spectrum and FDD spectrum. In addition, the spectrum specifications may also divide spectrum resources for other radio technologies, such as spectrum resources for satellite, Wi-Fi, emergency rescue, etc. In some embodiments, the Uu UL spectrum in this application includes the spectrum used for uplink in the FDD spectrum, and the Uu DL spectrum in this application includes the spectrum used for downlink in the FDD spectrum. In some embodiments, the FDD spectrum belongs to FR1.

[0254] In some embodiments, transmitting information with the low-power device includes at least one of sending information to the low-power device and receiving information sent by the low-power device. The transmitted information includes at least one of signaling, data, and a reference signal.

[0255] In some embodiments, the intermediate node comprises a node between the low-power device and the network device. The intermediate node establishes communication connections with the low-power device and the network device, respectively. In some embodiments, the intermediate node is used to transfer information between the network device and the low-power device. In some embodiments, the intermediate node is a terminal.

[0256] In some embodiments, the intermediate node transmits information to the low-power device on at least one of the Uu UL spectrum and the Uu DL spectrum, and / or the intermediate node receives information transmitted by the low-power device on at least one of the Uu UL spectrum and the Uu DL spectrum. In some embodiments, the intermediate node transmits information to the low-power device on a spectrum other than the Uu link spectrum.

[0257] In some embodiments, when the intermediate node has the second capability, the intermediate node receives information sent by the low-power device over the UU UL spectrum. In this case, the low-power device has the first capability. The second capability indicates that the intermediate node supports receiving information sent by the low-power device over the UU UL spectrum. The first capability indicates that the low-power device supports sending information over the UU UL spectrum.

[0258] In some embodiments, when the intermediate node has the fourth capability, the intermediate node receives information sent by the low-power device over the Uu DL spectrum. In this case, the low-power device has the third capability. The fourth capability indicates that the intermediate node supports receiving information sent by the low-power device over the Uu DL spectrum. The third capability indicates that the low-power device supports sending information over the Uu DL spectrum.

[0259] In some embodiments, when the intermediate node has the seventh capability, the intermediate node sends information to the low-power device over the Uu UL spectrum. In this case, the low-power device has the sixth capability. The seventh capability indicates that the intermediate node supports sending information to the low-power device over the Uu UL spectrum. The sixth capability indicates that the low-power device supports receiving information over the Uu UL spectrum.

[0260] In some embodiments, when the intermediate node has the tenth capability, the intermediate node receives information sent by the low-power device on the first spectrum. In this case, the low-power device has the eighth capability. The tenth capability is used to indicate that the intermediate node supports receiving information sent by the low-power device on the first spectrum. The eighth capability is used to indicate that the low-power device supports sending information on the first spectrum. In some embodiments, the first spectrum includes at least one of a guard spectrum (guard-band) and an independent spectrum (SA-band). In some embodiments, the guard spectrum belongs to the cellular spectrum, and the guard spectrum includes a portion of bandwidth reserved around (edge ​​of) the used spectrum in the cellular spectrum as a guard interval spectrum, which is used to avoid mutual interference between adjacent frequency bands. In some embodiments, the independent spectrum includes a spectrum outside the cellular spectrum that is independent of the cellular spectrum.

[0261] In some embodiments, when the intermediate node has the thirteenth capability, the intermediate node sends information to the low-power device over the first spectrum. In this case, the low-power device has the eleventh capability. The thirteenth capability indicates that the intermediate node supports sending information to the low-power device over the first spectrum. The eleventh capability indicates that the low-power device supports receiving information over the first spectrum.

[0262] It should be noted that the sending and receiving capabilities of the above-mentioned intermediate nodes can be freely combined, and the embodiments of the present application do not limit this.

[0263] In summary, the method provided in this embodiment transmits information over the Uu link spectrum via an intermediate node and a low-power device, providing an implementation method for information transmission between a low-power device and an intermediate node. This method can clarify the implementation method for information transmission between devices in different topologies corresponding to low-power devices, thereby supporting the deployment of communication systems involving low-power devices in different topologies. In the above-mentioned topology implemented based on the Uu link, since the Uu link is an existing communication link, by reusing the Uu link spectrum, the topology based on the Uu link spectrum can meet the spectrum specifications, reducing implementation costs.

[0264] The method provided in this embodiment also provides multiple implementations for low-power devices to send information to intermediate nodes, including sending information to intermediate nodes over the Uu UL spectrum, sending information to intermediate nodes over the Uu DL spectrum, and sending information to intermediate nodes over the first spectrum. Furthermore, the method provides multiple implementations for low-power devices to receive information from intermediate nodes, including receiving information from intermediate nodes over the Uu UL spectrum and receiving information from intermediate nodes over the first spectrum. Furthermore, because the Uu link has a wide coverage range, the communication coverage for low-power devices can be improved.

[0265] FIG11 is a flow chart of a transmission method provided by an exemplary embodiment of the present application. The method may be executed by a network device. The method includes:

[0266] Step 1102: The network device transmits information with the low-power device on the Uu link spectrum.

[0267] In some embodiments, low-power devices include devices that use ambient energy for power. In some embodiments, low-power devices have no energy storage capability or have limited energy storage capability. In some embodiments, low-power devices are equivalent to or can be replaced by zero-power devices, zero-power IoT devices, A-IoT devices, or passive IoT devices.

[0268] The Uu link spectrum is the spectrum resource used by the Uu link. In some embodiments, the Uu link spectrum is equivalent to / replaceable with the Uu spectrum. In some embodiments, the Uu link is a communication link established based on the Uu interface. In some embodiments, the Uu link is a communication link established between the access network device and the user equipment through the Uu interface. The Uu link is different from the sidelink of D2D communication and V2X communication. In some embodiments, the cellular spectrum used by the 3GPP communication system can be called the Uu spectrum. In some embodiments, the Uu spectrum is divided into TDD spectrum and FDD spectrum. In addition, the spectrum specifications may also divide spectrum resources for other radio technologies, such as spectrum resources for satellite, Wi-Fi, emergency rescue, etc. In some embodiments, the Uu UL spectrum in this application includes the spectrum used for uplink in the FDD spectrum, and the Uu DL spectrum in this application includes the spectrum used for downlink in the FDD spectrum. In some embodiments, the FDD spectrum belongs to FR1.

[0269] In some embodiments, transmitting information with the low-power device includes at least one of sending information to the low-power device and receiving information sent by the low-power device. The transmitted information includes at least one of signaling, data, and a reference signal.

[0270] In some embodiments, the network device includes an access network device, such as a base station.

[0271] In some embodiments, the network device transmits information to the low-power device on at least one of the Uu UL spectrum and the Uu DL spectrum, and / or the network device receives information transmitted by the low-power device on at least one of the Uu UL spectrum and the Uu DL spectrum. In some embodiments, the network device transmits information to the low-power device on a spectrum other than the Uu link spectrum.

[0272] In some embodiments, a network device receives information sent by a low-power device over a Uu UL spectrum. In this case, the low-power device has a first capability. The first capability is used to indicate that the low-power device supports sending information over the Uu UL spectrum.

[0273] In some embodiments, the network device sends information to the low-power device over the Uu DL spectrum. In this case, the low-power device has a fifth capability. The fifth capability is used to indicate that the low-power device supports receiving information over the Uu DL spectrum.

[0274] In some embodiments, when the network device has the ninth capability, the network device receives information sent by the low-power device on the first spectrum. In this case, the low-power device has the eighth capability. The ninth capability is used to indicate that the network device supports receiving information sent by the low-power device on the first spectrum. The eighth capability is used to indicate that the low-power device supports sending information on the first spectrum. In some embodiments, the first spectrum includes at least one of a guard spectrum (guard-band) and an independent spectrum (SA-band). In some embodiments, the guard spectrum belongs to the cellular spectrum, and the guard spectrum includes a portion of the bandwidth reserved around (edge ​​of) the used spectrum in the cellular spectrum as a guard interval spectrum, which is used to avoid mutual interference between adjacent frequency bands. In some embodiments, the independent spectrum includes a spectrum outside the cellular spectrum, which is independent of the cellular spectrum.

[0275] In some embodiments, when a network device has the twelfth capability, the network device transmits information to a low-power device over a first spectrum. In this case, the low-power device has the eleventh capability. The first spectrum includes at least one of a protected spectrum and an independent spectrum. The twelfth capability indicates that the network device supports transmitting information to the low-power device over the first spectrum. The eleventh capability indicates that the low-power device supports receiving information over the first spectrum.

[0276] It should be noted that the sending and receiving capabilities of the above-mentioned network devices can be freely combined, and the embodiments of the present application do not limit this.

[0277] In summary, the method provided in this embodiment transmits information over the Uu link spectrum between a network device and a low-power device, providing an implementation method for information transmission between a low-power device and a network device. This method can clarify the implementation method for information transmission between devices in different topologies corresponding to low-power devices, thereby supporting the deployment of communication systems involving low-power devices in different topologies. In the above-mentioned topology implemented based on the Uu link, since the Uu link is an existing communication link, by reusing the Uu link spectrum, the topology based on the Uu link spectrum can meet the spectrum specifications, reducing implementation costs.

[0278] The method provided in this embodiment also provides multiple implementations for low-power devices to send information to network devices, including sending information to network devices over the Uu UL spectrum and over the first spectrum. It also provides multiple implementations for low-power devices to receive information from intermediate nodes and / or network devices, including receiving information from network devices over the Uu DL spectrum and over the first spectrum. Furthermore, because the Uu link has a wider coverage range, it can improve communication coverage for low-power devices.

[0279] The method provided in this application supports the deployment of communication systems involving low-power devices in different topologies (deployment scenarios) by designing corresponding capabilities for low-power devices, intermediate nodes, and network devices in the communication system. Before providing a detailed introduction to the capabilities of each device, the spectrum of the possible uplink (transmission) and downlink (reception) operations of the low-power devices is analyzed.

[0280] DL for low-power devices, that is, on which spectrum the low-power devices receive data and / or signaling from other devices (network devices or intermediate nodes).

[0281] Option 1a: Using the Uu DL spectrum as the DL spectrum for low-power devices.

[0282] Applicable to topology 1, the link from the network device to the intermediate node or low-power device is called downlink. Not applicable to topology 2, the existing terminal (intermediate node) cannot transmit on the Uu DL spectrum.

[0283] Option 1b: Using the Uu UL spectrum as DL spectrum for low-power devices.

[0284] This is not applicable to topology 1, as existing network devices cannot transmit on the Uu UL spectrum. This is applicable to topology 2, similar to sidelink and D2D, where intermediate nodes can transmit to other devices on the Uu UL spectrum.

[0285] UL for low-power devices, that is, the spectrum on which low-power devices send data and / or signaling to other devices.

[0286] Option 2a: Using the Uu UL spectrum as the UL spectrum for low-power devices.

[0287] Applicable to topology 1, any link from a network device to an intermediate node or low-power device is called an uplink. This also applies to topology 2, similar to sidelink and D2D, where intermediate nodes can receive transmissions from other devices on the Uu UL spectrum.

[0288] Option 2b: Using the Uu DL spectrum as the UL spectrum for low-power devices.

[0289] This is not applicable to topology 1, as existing network devices cannot receive data on the Uu DL spectrum. This is applicable to topology 2, as existing terminals (intermediate nodes) need to receive data from network devices and low-power devices on the Uu DL spectrum.

[0290] In addition, if the uplink spectrum and / or downlink spectrum of the low-power device operates in the protected spectrum and / or independent spectrum, the existing network equipment and terminals (intermediate nodes) do not support it and need to be redesigned. In this case, a unified approach can be adopted, as follows.

[0291] Solution 1c: Use the guard spectrum and / or independent spectrum as the DL spectrum for low-power devices. For example, the network devices in topology 1 and / or the terminals in topology 2 can transmit to the low-power devices on the guard spectrum and / or independent spectrum. In some embodiments, the guard spectrum belongs to the cellular spectrum. The guard spectrum includes a portion of bandwidth around (at the edge of) the used spectrum in the cellular spectrum, which is reserved as a guard interval spectrum to avoid mutual interference between adjacent frequency bands. In some embodiments, the independent spectrum includes a spectrum outside the cellular spectrum that is independent of the cellular spectrum.

[0292] Solution 2c: Use the protected spectrum and / or independent spectrum as the UL spectrum for low-power devices. For example, the network devices in topology 1 and / or the terminals in topology 2 can receive transmissions from the low-power devices on the protected spectrum and / or independent spectrum.

[0293] Based on the above analysis, the spectrum that may be used by low-power devices for uplink and downlink in different topologies is summarized in Table 1.

[0294] Table 1

[0295] Based on the above analysis of the spectrum in which low-power devices may transmit data and / or signaling, six possible scenarios are introduced:

[0296] Case 1: The low-power device receives using solution 1a (corresponding to topology 1) + solution 1b (corresponding to topology 2), and the low-power device sends using solution 2a (corresponding to topology 1 and topology 2).

[0297] Case 2: The low-power device receives using solution 1a (corresponding to topology 1) + solution 1b (corresponding to topology 2), and the low-power device sends using solution 2a (corresponding to topology 1) + solution 2b (corresponding to topology 2).

[0298] Case 3: The low-power device receives using solution 1a (corresponding to topology 1) + solution 1b (corresponding to topology 2), and the low-power device sends using solution 2c (corresponding to topology 1 and topology 2).

[0299] Case 4: The low-power device uses solution 1c (corresponding to topology 1 and topology 2) for reception, and solution 2a (corresponding to topology 1 and topology 2) for transmission.

[0300] Case 5: The low-power device receives using solution 1c (corresponding to topology 1 and topology 2), and the low-power device sends using solution 2a (corresponding to topology 1) + solution 2b (corresponding to topology 2).

[0301] Case 6: The low-power device receives using solution 1c (corresponding to topology 1 and topology 2), and the low-power device sends using solution 2c (corresponding to topology 1 and topology 2).

[0302] For the above situation 1:

[0303] FIG12 is a flow chart of a transmission method provided by an exemplary embodiment of the present application. The method can be used in the system shown in FIG8. The method includes:

[0304] Step 1202: The low power device sends information to the intermediate node and / or network device on the Uu UL spectrum.

[0305] In some embodiments, low-power devices include devices that use ambient energy for power. In some embodiments, low-power devices have no energy storage capability or have limited energy storage capability. In some embodiments, low-power devices are equivalent to or can be replaced by zero-power devices, zero-power IoT devices, A-IoT devices, or passive IoT devices.

[0306] The Uu link spectrum is the spectrum resource used by the Uu link. In some embodiments, the Uu link spectrum is equivalent to / replaceable with the Uu spectrum. In some embodiments, the Uu link is a communication link established based on the Uu interface. In some embodiments, the Uu link is a communication link established between the access network device and the user equipment through the Uu interface. The Uu link is different from the sidelink of D2D communication and V2X communication. In some embodiments, the cellular spectrum used by the 3GPP communication system can be called the Uu spectrum. In some embodiments, the Uu spectrum is divided into TDD spectrum and FDD spectrum. In addition, the spectrum specifications may also divide spectrum resources for other radio technologies, such as spectrum resources for satellite, Wi-Fi, emergency rescue, etc. In some embodiments, the Uu UL spectrum in this application includes the spectrum used for uplink in the FDD spectrum, and the Uu DL spectrum in this application includes the spectrum used for downlink in the FDD spectrum. In some embodiments, the FDD spectrum belongs to FR1.

[0307] In some embodiments, the above information includes at least one of signaling, data and reference signal.

[0308] In some embodiments, the intermediate node comprises a node between the low-power device and the network device. The intermediate node establishes communication connections with the low-power device and the network device, respectively. In some embodiments, the intermediate node is used to transfer information between the network device and the low-power device. In some embodiments, the intermediate node is a terminal.

[0309] In some embodiments, the network device includes an access network device, such as a base station.

[0310] In some embodiments, when the low-power device has a first capability, the low-power device transmits information over the UU UL spectrum. The first capability indicates that the low-power device supports transmitting information over the UU UL spectrum. In some embodiments, the low-power device transmitting information over the UU UL spectrum includes at least one of the low-power device transmitting information to a network device over the UU UL spectrum and the low-power device transmitting information to an intermediate node over the UU UL spectrum. In this case, the intermediate node has a second capability. The second capability indicates that the intermediate node supports receiving information sent by the low-power device over the UU UL spectrum.

[0311] Step 1204: The low power consumption device receives information sent by the network device on the Uu DL spectrum.

[0312] In some embodiments, if the low-power device has the fifth capability, the low-power device receives information over the Uu DL spectrum. The fifth capability is used to indicate that the low-power device supports receiving information over the Uu DL spectrum. In some embodiments, the low-power device receives information sent by the network device over the Uu DL spectrum.

[0313] Step 1206: The low-power device receives information sent by the intermediate node on the Uu UL spectrum.

[0314] In some embodiments, when the low-power device has a sixth capability, the low-power device receives information over the UU UL spectrum. The sixth capability indicates that the low-power device supports receiving information over the UU UL spectrum. In some embodiments, the low-power device receives information sent by an intermediate node over the UU UL spectrum. In this case, the intermediate node has a seventh capability. The seventh capability indicates that the intermediate node supports sending information to the low-power device over the UU UL spectrum.

[0315] It should be noted that the above content illustrates the implementation of the transmit and receive capabilities of low-power devices as different capabilities. In some embodiments, the first capability described above is combined with at least one of the fifth and sixth capabilities to form a single capability. For example, Figure 13 is a schematic diagram of the spectrum used by the first topology provided by an exemplary embodiment of the present application. Figure 14 is a schematic diagram of the spectrum used by the second topology provided by an exemplary embodiment of the present application. The following provides an overview of the capabilities of the relevant devices with reference to the accompanying figures.

[0316] In some embodiments, the capability of the low-power device to send information on the Uu UL spectrum (first capability) is the default capability of the low-power device. On this basis, the capabilities of the low-power device can be divided into:

[0317] Capability 1 (fifth capability): receiving information sent by network devices on the Uu DL spectrum.

[0318] Capability 2 (sixth capability): receiving information sent by an intermediate node on the Uu UL spectrum.

[0319] In some embodiments, the first capability is combined with the fifth capability and the sixth capability, respectively, to form two capabilities:

[0320] Capability 1 (first capability + fifth capability): receiving information sent by network devices on the Uu DL spectrum and sending information to network devices on the Uu UL spectrum.

[0321] Capability 2 (first capability + sixth capability): receiving information sent by an intermediate node on the Uu UL spectrum, and sending information to the intermediate node on the Uu UL spectrum.

[0322] For intermediate nodes, unlike existing terminals that only need to communicate with network devices, terminals acting as intermediate nodes also need to have the ability to send information to low-power devices on the Uu UL spectrum (seventh capability), and / or the ability to receive information sent by low-power devices on the Uu UL spectrum (second capability).

[0323] In some embodiments, the capabilities of the low-power device are notified to the intermediate node and / or the network device via high-layer signaling, wherein the capabilities of the low-power device are used to indicate the frequency spectrum in which the low-power device transmits information.

[0324] In this embodiment, step 1202, step 1204, and step 1206 are optional. In different embodiments, one or more of these steps may be omitted or replaced.

[0325] Step 1202 can be implemented as an independent embodiment, such as being implemented as a sending method on the low-power device side, or a receiving method on the intermediate node side, or a receiving method on the network device side. Step 1204 can be implemented as an independent embodiment, such as being implemented as a receiving method on the low-power device side, or a sending method on the network device side. Step 1206 can be implemented as an independent embodiment, such as being implemented as a receiving method on the low-power device side, or a sending method on the intermediate node side. Steps 1202 and 1204 can be implemented as independent embodiments, such as being implemented as transmission methods on the low-power device and network device sides. Steps 1202 and 1206 can be implemented as independent embodiments, such as being implemented as transmission methods on the low-power device and intermediate node sides.

[0326] It should be noted that the order of the steps in this embodiment is for illustration only and is not intended to limit the order of the steps when implementing this embodiment. When implementing this embodiment, the order of the steps may be adjusted according to actual circumstances.

[0327] In summary, the method provided in this embodiment sends information to intermediate nodes and / or network devices on the Uu UL spectrum via a low-power device, providing an implementation method for low-power devices to send information to intermediate nodes and / or network devices. By receiving information sent by network devices on the Uu DL spectrum and receiving information sent by intermediate nodes on the Uu UL spectrum via a low-power device, an implementation method for low-power devices to receive information from intermediate nodes and / or network devices is provided. The implementation method for information transmission between devices in different topologies corresponding to low-power devices can be clarified, thereby supporting the deployment of communication systems involving low-power devices in different topologies. In the above-mentioned topology structure implemented based on the Uu link, since the Uu link is an existing communication link, by reusing the Uu link spectrum, the topology structure based on the Uu link spectrum can meet the spectrum specifications, thereby reducing the implementation cost.

[0328] For the above situation 2:

[0329] FIG15 is a flow chart of a transmission method provided by an exemplary embodiment of the present application. The method can be used in the system shown in FIG8. The method includes:

[0330] Step 1502: The low power consumption device receives information sent by the network device on the Uu DL spectrum.

[0331] In some embodiments, low-power devices include devices that use ambient energy for power. In some embodiments, low-power devices have no energy storage capability or have limited energy storage capability. In some embodiments, low-power devices are equivalent to or can be replaced by zero-power devices, zero-power IoT devices, A-IoT devices, or passive IoT devices.

[0332] The Uu link spectrum is the spectrum resource used by the Uu link. In some embodiments, the Uu link spectrum is equivalent to / replaceable with the Uu spectrum. In some embodiments, the Uu link is a communication link established based on the Uu interface. In some embodiments, the Uu link is a communication link established between the access network device and the user equipment through the Uu interface. The Uu link is different from the sidelink of D2D communication and V2X communication. In some embodiments, the cellular spectrum used by the 3GPP communication system can be called the Uu spectrum. In some embodiments, the Uu spectrum is divided into TDD spectrum and FDD spectrum. In addition, the spectrum specifications may also divide spectrum resources for other radio technologies, such as spectrum resources for satellite, Wi-Fi, emergency rescue, etc. In some embodiments, the Uu UL spectrum in this application includes the spectrum used for uplink in the FDD spectrum, and the Uu DL spectrum in this application includes the spectrum used for downlink in the FDD spectrum. In some embodiments, the FDD spectrum belongs to FR1.

[0333] In some embodiments, the above information includes at least one of signaling, data and reference signal.

[0334] In some embodiments, the network device includes an access network device, such as a base station.

[0335] In some embodiments, if the low-power device has the fifth capability, the low-power device receives information over the Uu DL spectrum. The fifth capability is used to indicate that the low-power device supports receiving information over the Uu DL spectrum. In some embodiments, the low-power device receives information sent by the network device over the Uu DL spectrum.

[0336] Step 1504: The low power device sends information to the network device on the Uu UL.

[0337] In some embodiments, when the low-power device has a first capability, the low-power device transmits information on the UU UL spectrum. The first capability is used to indicate that the low-power device supports transmitting information on the UU UL spectrum. In some embodiments, the low-power device transmits information to the network device on the UU UL spectrum.

[0338] Step 1506: The low-power device receives information sent by the intermediate node on the Uu UL spectrum.

[0339] In some embodiments, the intermediate node comprises a node between the low-power device and the network device. The intermediate node establishes communication connections with the low-power device and the network device, respectively. In some embodiments, the intermediate node is used to transfer information between the network device and the low-power device. In some embodiments, the intermediate node is a terminal.

[0340] In some embodiments, when the low-power device has a sixth capability, the low-power device receives information over the UU UL spectrum. The sixth capability indicates that the low-power device supports receiving information over the UU UL spectrum. In some embodiments, the low-power device receives information sent by an intermediate node over the UU UL spectrum. In this case, the intermediate node has a seventh capability. The seventh capability indicates that the intermediate node supports sending information to the low-power device over the UU UL spectrum.

[0341] Step 1508: The low power device sends information to the intermediate node on the Uu DL spectrum.

[0342] In some embodiments, when the low-power device has a third capability, the low-power device transmits information over the Uu DL spectrum. The third capability indicates that the low-power device supports transmitting information over the Uu DL spectrum. In some embodiments, the low-power device transmits information to the intermediate node over the Uu DL spectrum. In this case, the intermediate node has a fourth capability. The fourth capability indicates that the intermediate node supports receiving information sent by the low-power device over the Uu DL spectrum.

[0343] It should be noted that the above content is an illustration of the low-power device's transmission and reception capabilities implemented as different capabilities. In some embodiments, at least one of the fifth and sixth capabilities is combined with at least one of the first and third capabilities to form a single capability. For example, Figure 16 is a schematic diagram of the spectrum used by the first topology provided by an exemplary embodiment of the present application. Figure 17 is a schematic diagram of the spectrum used by the second topology provided by an exemplary embodiment of the present application. The following is an overall introduction to the capabilities of the relevant devices in conjunction with the accompanying drawings.

[0344] In some embodiments, the low-power device has two different downlink receiving and uplink transmitting capabilities:

[0345] Capability 1 (fifth capability + first capability): receiving information sent by a network device on a Uu DL spectrum and sending information to a network device on a Uu UL spectrum.

[0346] Capability 2 (sixth capability + third capability): receiving information sent by an intermediate node on the Uu UL spectrum, and sending information to the intermediate node on the Uu DL spectrum.

[0347] For intermediate nodes, unlike existing terminals that only need to communicate with network devices, terminals acting as intermediate nodes also need to have the ability to send information to low-power devices on the Uu UL spectrum (seventh capability), and / or the ability to receive information sent by low-power devices on the Uu DL spectrum (fourth capability).

[0348] In some embodiments, the capabilities of the low-power device are notified to the intermediate node and / or the network device via high-layer signaling, wherein the capabilities of the low-power device are used to indicate the frequency spectrum of the low-power device for transmitting information.

[0349] In this embodiment, step 1502, step 1504, step 1506, and step 1508 are optional. In different embodiments, one or more of these steps may be omitted or replaced.

[0350] Step 1502 can be implemented as an independent embodiment, such as being implemented as a receiving method on the low-power device side or a sending method on the network device side. Step 1504 can be implemented as an independent embodiment, such as being implemented as a sending method on the low-power device side or a receiving method on the network device side. Step 1506 can be implemented as an independent embodiment, such as being implemented as a receiving method on the low-power device side or a sending method on the intermediate node side. Step 1508 can be implemented as an independent embodiment, such as being implemented as a sending method on the low-power device side or a receiving method on the intermediate node side. Steps 1502 and 1504 can be implemented as independent embodiments, such as being implemented as transmission methods on the low-power device and the network device side. Steps 1506 and 1508 can be implemented as independent embodiments, such as being implemented as transmission methods on the low-power device and the intermediate node side.

[0351] It should be noted that the order of the steps in this embodiment is for illustration only and is not intended to limit the order of the steps when implementing this embodiment. When implementing this embodiment, the order of the steps may be adjusted according to actual circumstances.

[0352] In summary, the method provided in this embodiment sends information to the network device on the Uu UL spectrum and sends information to the intermediate node on the Uu DL spectrum by the low-power device, providing an implementation method for the low-power device to send information to the intermediate node and / or the network device. The low-power device receives information sent by the network device on the Uu DL spectrum and receives information sent by the intermediate node on the Uu UL spectrum, providing an implementation method for the low-power device to receive information from the intermediate node and / or the network device. The implementation method for information transmission between devices in different topologies corresponding to the low-power device can be clarified, thereby supporting the communication system involving low-power devices to be deployed in different topologies. In the above-mentioned topology structure implemented based on the Uu link, since the Uu link is an existing communication link, by reusing the Uu link spectrum, the topology structure based on the Uu link spectrum can meet the spectrum specifications, thereby reducing the implementation cost.

[0353] Regarding the above situation 3:

[0354] FIG18 is a flow chart of a transmission method provided by an exemplary embodiment of the present application. The method can be used in the system shown in FIG8. The method includes:

[0355] Step 1802: The low-power device sends information to an intermediate node and / or a network device on a first spectrum.

[0356] In some embodiments, low-power devices include devices that use ambient energy for power. In some embodiments, low-power devices have no energy storage capability or have limited energy storage capability. In some embodiments, low-power devices are equivalent to or can be replaced by zero-power devices, zero-power IoT devices, A-IoT devices, or passive IoT devices.

[0357] The Uu link spectrum is the spectrum resource used by the Uu link. In some embodiments, the Uu link spectrum is equivalent to / replaceable with the Uu spectrum. In some embodiments, the Uu link is a communication link established based on the Uu interface. In some embodiments, the Uu link is a communication link established between the access network device and the user equipment through the Uu interface. The Uu link is different from the sidelink of D2D communication and V2X communication. In some embodiments, the cellular spectrum used by the 3GPP communication system can be called the Uu spectrum. In some embodiments, the Uu spectrum is divided into TDD spectrum and FDD spectrum. In addition, the spectrum specifications may also divide spectrum resources for other radio technologies, such as spectrum resources for satellite, Wi-Fi, emergency rescue, etc. In some embodiments, the Uu UL spectrum in this application includes the spectrum used for uplink in the FDD spectrum, and the Uu DL spectrum in this application includes the spectrum used for downlink in the FDD spectrum. In some embodiments, the FDD spectrum belongs to FR1.

[0358] In some embodiments, the above information includes at least one of signaling, data and reference signal.

[0359] In some embodiments, the intermediate node comprises a node between the low-power device and the network device. The intermediate node establishes communication connections with the low-power device and the network device, respectively. In some embodiments, the intermediate node is used to transfer information between the network device and the low-power device. In some embodiments, the intermediate node is a terminal.

[0360] In some embodiments, the network device includes an access network device, such as a base station.

[0361] In some embodiments, when the low-power device has the eighth capability, the low-power device sends information on the first spectrum. The eighth capability is used to indicate that the low-power device supports sending information on the first spectrum. In some embodiments, the first spectrum includes at least one of a guard spectrum (guard-band) and an independent spectrum (SA-band). In some embodiments, the guard spectrum belongs to the cellular spectrum, and the guard spectrum includes a portion of bandwidth reserved around (edge ​​of) the used spectrum in the cellular spectrum as a guard interval spectrum to avoid mutual interference between adjacent frequency bands. In some embodiments, the independent spectrum includes a spectrum outside the cellular spectrum that is independent of the cellular spectrum.

[0362] In some embodiments, the low-power device transmitting information over the first spectrum includes at least one of the low-power device transmitting information to the network device over the first spectrum and the low-power device transmitting information to the intermediate node over the first spectrum. In this case, the network device has a ninth capability, and the intermediate node has a tenth capability. The ninth capability indicates that the network device supports receiving information sent by the low-power device over the first spectrum. The tenth capability indicates that the intermediate node supports receiving information sent by the low-power device over the first spectrum.

[0363] Step 1804: The low power device receives information sent by the network device on the Uu DL spectrum.

[0364] In some embodiments, if the low-power device has the fifth capability, the low-power device receives information over the Uu DL spectrum. The fifth capability is used to indicate that the low-power device supports receiving information over the Uu DL spectrum. In some embodiments, the low-power device receives information sent by the network device over the Uu DL spectrum.

[0365] Step 1806: The low-power device receives information sent by the intermediate node on the Uu UL spectrum.

[0366] In some embodiments, when the low-power device has a sixth capability, the low-power device receives information over the UU UL spectrum. The sixth capability indicates that the low-power device supports receiving information over the UU UL spectrum. In some embodiments, the low-power device receives information sent by an intermediate node over the UU UL spectrum. In this case, the intermediate node has a seventh capability. The seventh capability indicates that the intermediate node supports sending information to the low-power device over the UU UL spectrum.

[0367] It should be noted that the above content illustrates the implementation of the transmit and receive capabilities of low-power devices as different capabilities. In some embodiments, the eighth capability described above is combined with at least one of the fifth and sixth capabilities to form a single capability. For example, Figure 19 is a schematic diagram of the spectrum used by the first topology provided by an exemplary embodiment of the present application. Figure 20 is a schematic diagram of the spectrum used by the second topology provided by an exemplary embodiment of the present application. The following is a general introduction to the capabilities of the relevant devices in conjunction with the accompanying drawings.

[0368] In some embodiments, the capability of the low-power device to send information on the first spectrum (eighth capability) is a default capability of the low-power device. On this basis, the capabilities of the low-power device can be divided into:

[0369] Capability 1 (fifth capability): receiving information sent by network devices on the Uu DL spectrum.

[0370] Capability 2 (sixth capability): receiving information sent by an intermediate node on the Uu UL spectrum.

[0371] In some embodiments, the eighth capability is combined with the fifth capability and the sixth capability, respectively, to form two capabilities:

[0372] Capability 1 (eighth capability + fifth capability): receiving information sent by the network device on the Uu DL spectrum, and sending information to the network device on the first spectrum.

[0373] Capability 2 (eighth capability + sixth capability): receiving information sent by the intermediate node on the Uu UL spectrum, and sending information to the intermediate node on the first spectrum.

[0374] For intermediate nodes, unlike existing terminals that only need to communicate with network devices, terminals acting as intermediate nodes also need to have the ability to send information to low-power devices on the Uu UL spectrum (seventh capability), and / or the ability to receive information sent by low-power devices on the first spectrum (tenth capability).

[0375] The network device, unlike the existing access network device, also needs to support the capability of receiving information sent by the low-power device on the first spectrum (ninth capability).

[0376] In some embodiments, the capabilities of the low-power device are notified to the intermediate node and / or the network device via high-layer signaling, wherein the capabilities of the low-power device are used to indicate the frequency spectrum in which the low-power device transmits information.

[0377] In this embodiment, step 1802, step 1804, and step 1806 are optional. In different embodiments, one or more of these steps may be omitted or replaced.

[0378] Step 1802 can be implemented as an independent embodiment, such as being implemented as a sending method on the low-power device side, or a receiving method on the intermediate node side, or a receiving method on the network device side. Step 1804 can be implemented as an independent embodiment, such as being implemented as a receiving method on the low-power device side, or a sending method on the network device side. Step 1806 can be implemented as an independent embodiment, such as being implemented as a receiving method on the low-power device side, or a sending method on the intermediate node side. Steps 1802 and 1804 can be implemented as independent embodiments, such as being implemented as transmission methods on the low-power device and the network device side. Steps 1802 and 1806 can be implemented as independent embodiments, such as being implemented as transmission methods on the low-power device and the intermediate node side.

[0379] It should be noted that the order of the steps in this embodiment is for illustration only and is not intended to limit the order of the steps when implementing this embodiment. When implementing this embodiment, the order of the steps may be adjusted according to actual circumstances.

[0380] In summary, the method provided in this embodiment sends information to the intermediate node and / or network device on the first spectrum through the low-power device, and provides an implementation method for the low-power device to send information to the intermediate node and / or network device. The low-power device receives information sent by the network device on the Uu DL spectrum and receives information sent by the intermediate node on the Uu UL spectrum, providing an implementation method for the low-power device to receive information from the intermediate node and / or network device. The implementation method for information transmission between devices in different topologies corresponding to the low-power device can be clarified, thereby supporting the communication system involving low-power devices to be deployed in different topologies. In the above-mentioned topology structure implemented based on the Uu link, since the Uu link is an existing communication link, by reusing the Uu link spectrum, the topology structure based on the Uu link spectrum can meet the spectrum specifications, thereby reducing the implementation cost.

[0381] Regarding the above situation 4:

[0382] FIG21 is a flow chart of a transmission method provided by an exemplary embodiment of the present application. The method can be used in the system shown in FIG8. The method includes:

[0383] Step 2102: The low-power device receives information sent by the intermediate node and / or the network device on the first spectrum.

[0384] In some embodiments, low-power devices include devices that use ambient energy for power. In some embodiments, low-power devices have no energy storage capability or have limited energy storage capability. In some embodiments, low-power devices are equivalent to or can be replaced by zero-power devices, zero-power IoT devices, A-IoT devices, or passive IoT devices.

[0385] The Uu link spectrum is the spectrum resource used by the Uu link. In some embodiments, the Uu link spectrum is equivalent to / replaceable with the Uu spectrum. In some embodiments, the Uu link is a communication link established based on the Uu interface. In some embodiments, the Uu link is a communication link established between the access network device and the user equipment through the Uu interface. The Uu link is different from the side link of D2D communication and V2X communication. In some embodiments, the cellular spectrum used by the 3GPP communication system may be called the Uu spectrum. In some embodiments, the Uu spectrum is divided into TDD spectrum and FDD spectrum. In addition, in the spectrum specification, spectrum resources for other radio technologies may also be divided, such as spectrum resources for satellite, Wifi, emergency rescue, etc. In some embodiments, the Uu UL spectrum in this application includes the spectrum used for uplink in the FDD spectrum. In some embodiments, the FDD spectrum belongs to FR1.

[0386] In some embodiments, the above information includes at least one of signaling, data and reference signal.

[0387] In some embodiments, the intermediate node comprises a node between the low-power device and the network device. The intermediate node establishes communication connections with the low-power device and the network device, respectively. In some embodiments, the intermediate node is used to transfer information between the network device and the low-power device. In some embodiments, the intermediate node is a terminal.

[0388] In some embodiments, the network device includes an access network device, such as a base station.

[0389] In some embodiments, when the low-power device has the eleventh capability, the low-power device receives information on the first spectrum. The eleventh capability is used to indicate that the low-power device supports receiving information on the first spectrum. In some embodiments, the first spectrum includes at least one of a guard spectrum (guard-band) and an independent spectrum (SA-band). In some embodiments, the guard spectrum belongs to the cellular spectrum, and the guard spectrum includes a portion of bandwidth reserved around (edge ​​of) the used spectrum in the cellular spectrum as a guard interval spectrum to avoid mutual interference between adjacent frequency bands. In some embodiments, the independent spectrum includes a spectrum outside the cellular spectrum that is independent of the cellular spectrum.

[0390] In some embodiments, receiving information on the first spectrum by the low-power device includes at least one of receiving information sent by the network device on the first spectrum and receiving information sent by the intermediate node on the first spectrum. In this case, the network device has a twelfth capability, and the intermediate node has a thirteenth capability. The twelfth capability indicates that the network device supports sending information to the low-power device on the first spectrum. The thirteenth capability indicates that the intermediate node supports sending information to the low-power device on the first spectrum.

[0391] Step 2104: The low power device sends information to the intermediate node and / or the network device on the Uu UL spectrum.

[0392] In some embodiments, when the low-power device has a first capability, the low-power device sends information on the Uu UL spectrum. The first capability is used to indicate that the low-power device supports sending information on the Uu UL spectrum.

[0393] In some embodiments, the low-power device transmitting information over the Uu UL spectrum includes at least one of the low-power device transmitting information to a network device over the Uu UL spectrum and the low-power device transmitting information to an intermediate node over the Uu UL spectrum. In this case, the intermediate node has a second capability. The second capability is used to indicate that the intermediate node supports receiving information sent by the low-power device over the Uu UL spectrum.

[0394] It should be noted that the above content illustrates the implementation of the transmission and reception capabilities of low-power devices as different capabilities. In some embodiments, the eleventh capability is combined with the first capability to form a single capability. The capabilities of the relevant devices are further generally described below. For example, Figure 22 is a schematic diagram of the spectrum used by the first topology provided by an exemplary embodiment of the present application. Figure 23 is a schematic diagram of the spectrum used by the second topology provided by an exemplary embodiment of the present application. The capabilities of the relevant devices are further generally described below in conjunction with the accompanying drawings.

[0395] In some embodiments, regardless of the topology, the low-power device has an eleventh capability of receiving information sent by the network device and / or intermediate node on the first spectrum. Furthermore, the low-power device has a first capability of sending information to the network device and / or intermediate node on the Uu UL spectrum. In this case, there is no need to distinguish between the capabilities (types) of different low-power devices.

[0396] For intermediate nodes, unlike existing terminals that only need to communicate with network devices, terminals acting as intermediate nodes also need to have the ability to send information to low-power devices on the first spectrum (the thirteenth capability), and / or the ability to receive information sent by low-power devices on the Uu UL spectrum (the second capability).

[0397] Different from existing access network devices, the network device also needs to have the capability of sending information to the low-power device on the first spectrum (the twelfth capability). The network device still receives information sent by the low-power device on the Uu UL spectrum.

[0398] In some embodiments, the capabilities of the low-power device are notified to the intermediate node and / or the network device via high-layer signaling, wherein the capabilities of the low-power device are used to indicate the frequency spectrum in which the low-power device transmits information.

[0399] In this embodiment, step 2102 and step 2104 are optional. In different embodiments, one or more of these steps may be omitted or replaced.

[0400] Step 2102 can be implemented as an independent embodiment, such as a receiving method on the low-power device side, a sending method on the intermediate node side, or a sending method on the network device side. Step 2104 can be implemented as an independent embodiment, such as a sending method on the low-power device side, a receiving method on the network device side, or a receiving method on the intermediate node side. Steps 2102 and 2104 can be implemented as independent embodiments, such as a transmission method on the low-power device and the network device side, or a transmission method on the low-power device and the intermediate node side.

[0401] It should be noted that the order of the steps in this embodiment is for illustration only and is not intended to limit the order of the steps when implementing this embodiment. When implementing this embodiment, the order of the steps may be adjusted according to actual circumstances.

[0402] In summary, the method provided in this embodiment sends information to the intermediate node and / or network device on the Uu UL spectrum via a low-power device, and provides an implementation method for the low-power device to send information to the intermediate node and / or network device. By receiving the information sent by the intermediate node and / or network device on the first spectrum via the low-power device, an implementation method for the low-power device to receive information from the intermediate node and / or network device is provided. The implementation method for information transmission between devices in different topologies corresponding to the low-power device can be clarified, thereby supporting the communication system involving low-power devices to be deployed in different topologies. In the above-mentioned topology structure implemented based on the Uu link, since the Uu link is an existing communication link, by reusing the Uu link spectrum, the topology structure based on the Uu link spectrum can meet the spectrum specifications, thereby reducing the implementation cost.

[0403] Regarding the above situation 5:

[0404] FIG24 is a flow chart of a transmission method provided by an exemplary embodiment of the present application. The method can be used in the system shown in FIG8. The method includes:

[0405] Step 2402: The low-power device receives information sent by the intermediate node and / or the network device on the first spectrum.

[0406] In some embodiments, low-power devices include devices that use ambient energy for power. In some embodiments, low-power devices have no energy storage capability or have limited energy storage capability. In some embodiments, low-power devices are equivalent to or can be replaced by zero-power devices, zero-power IoT devices, A-IoT devices, or passive IoT devices.

[0407] The Uu link spectrum is the spectrum resource used by the Uu link. In some embodiments, the Uu link spectrum is equivalent to / replaceable with the Uu spectrum. In some embodiments, the Uu link is a communication link established based on the Uu interface. In some embodiments, the Uu link is a communication link established between the access network device and the user equipment through the Uu interface. The Uu link is different from the sidelink of D2D communication and V2X communication. In some embodiments, the cellular spectrum used by the 3GPP communication system can be called the Uu spectrum. In some embodiments, the Uu spectrum is divided into TDD spectrum and FDD spectrum. In addition, the spectrum specifications may also divide spectrum resources for other radio technologies, such as spectrum resources for satellite, Wi-Fi, emergency rescue, etc. In some embodiments, the Uu UL spectrum in this application includes the spectrum used for uplink in the FDD spectrum, and the Uu DL spectrum in this application includes the spectrum used for downlink in the FDD spectrum. In some embodiments, the FDD spectrum belongs to FR1.

[0408] In some embodiments, the above information includes at least one of signaling, data and reference signal.

[0409] In some embodiments, the intermediate node comprises a node between the low-power device and the network device. The intermediate node establishes communication connections with the low-power device and the network device, respectively. In some embodiments, the intermediate node is used to transfer information between the network device and the low-power device. In some embodiments, the intermediate node is a terminal.

[0410] In some embodiments, the network device includes an access network device, such as a base station.

[0411] In some embodiments, when the low-power device has the eleventh capability, the low-power device receives information on the first spectrum. The eleventh capability is used to indicate that the low-power device supports receiving information on the first spectrum. In some embodiments, the first spectrum includes at least one of a guard spectrum (guard-band) and an independent spectrum (SA-band). In some embodiments, the guard spectrum belongs to the cellular spectrum, and the guard spectrum includes a portion of bandwidth reserved around (edge ​​of) the used spectrum in the cellular spectrum as a guard interval spectrum to avoid mutual interference between adjacent frequency bands. In some embodiments, the independent spectrum includes a spectrum outside the cellular spectrum that is independent of the cellular spectrum.

[0412] In some embodiments, receiving information on the first spectrum by the low-power device includes at least one of receiving information sent by the network device on the first spectrum and receiving information sent by the intermediate node on the first spectrum. In this case, the network device has a twelfth capability, and the intermediate node has a thirteenth capability. The twelfth capability indicates that the network device supports sending information to the low-power device on the first spectrum. The thirteenth capability indicates that the intermediate node supports sending information to the low-power device on the first spectrum.

[0413] Step 2404: The low power device sends information to the network device on the Uu UL spectrum.

[0414] In some embodiments, when the low-power device has a first capability, the low-power device transmits information on the UU UL spectrum. The first capability is used to indicate that the low-power device supports transmitting information on the UU UL spectrum. In some embodiments, the low-power device transmits information to the network device on the UU UL spectrum.

[0415] Step 2406: The low power device sends information to the intermediate node on the Uu DL spectrum.

[0416] In some embodiments, when the low-power device has a third capability, the low-power device transmits information over the Uu DL spectrum. The third capability indicates that the low-power device supports transmitting information over the Uu DL spectrum. In some embodiments, the low-power device transmits information to the intermediate node over the Uu DL spectrum. In this case, the intermediate node has a fourth capability. The fourth capability indicates that the intermediate node supports receiving information sent by the low-power device over the Uu DL spectrum.

[0417] It should be noted that the above content illustrates the implementation of the transmit and receive capabilities of low-power devices as different capabilities. In some embodiments, the eleventh capability described above is combined with at least one of the first and third capabilities to form a single capability. For example, Figure 25 is a schematic diagram of the spectrum used by the first topology provided by an exemplary embodiment of the present application. Figure 26 is a schematic diagram of the spectrum used by the second topology provided by an exemplary embodiment of the present application. The following provides an overall introduction to the capabilities of the relevant devices in conjunction with the accompanying drawings.

[0418] In some embodiments, the capability of the low-power device to receive information on the first spectrum (the eleventh capability) is a default capability of the low-power device. On this basis, the capabilities of the low-power device can be divided into:

[0419] Capability 1 (first capability): Send information to network devices on the Uu UL spectrum.

[0420] • Capability 2 (third capability): Send information to intermediate nodes on the Uu DL spectrum.

[0421] In some embodiments, the eleventh capability is combined with the first capability and the third capability, respectively, to form two capabilities:

[0422] Capability 1 (eleventh capability + first capability): receiving information sent by the network device on the first spectrum, and sending information to the network device on the Uu UL spectrum.

[0423] Capability 2 (eleventh capability + third capability): receiving information sent by the intermediate node on the first spectrum, and sending information to the intermediate node on the Uu DL spectrum.

[0424] For intermediate nodes, unlike existing terminals that only need to communicate with network devices, terminals acting as intermediate nodes also need to have the ability to send information to low-power devices on the first spectrum (the thirteenth capability), and / or the ability to receive information sent by low-power devices on the Uu DL spectrum (the fourth capability).

[0425] Different from existing access network devices, the network device also needs to support the capability of sending information to the low-power device on the first spectrum (the twelfth capability). The network device still receives information sent by the low-power device on the Uu UL spectrum.

[0426] In some embodiments, the capabilities of the low-power device are notified to the intermediate node and / or the network device via high-layer signaling, wherein the capabilities of the low-power device are used to indicate the frequency spectrum of the low-power device for transmitting information.

[0427] In this embodiment, step 2402, step 2404, and step 2406 are optional. In different embodiments, one or more of these steps may be omitted or replaced.

[0428] Step 2402 can be implemented as an independent embodiment, such as being implemented as a receiving method on the low-power device side, a sending method on the intermediate node side, or a sending method on the network device side. Step 2404 can be implemented as an independent embodiment, such as being implemented as a sending method on the low-power device side, or a receiving method on the network device side. Step 2406 can be implemented as an independent embodiment, such as being implemented as a sending method on the low-power device side, or a receiving method on the intermediate node side. Steps 2402 and 2404 can be implemented as independent embodiments, such as being implemented as transmission methods on the low-power device and the network device side. Steps 2402 and 2406 can be implemented as independent embodiments, such as being implemented as transmission methods on the low-power device and the intermediate node side.

[0429] It should be noted that the order of the steps in this embodiment is for illustration only and is not intended to limit the order of the steps when implementing this embodiment. When implementing this embodiment, the order of the steps may be adjusted according to actual circumstances.

[0430] In summary, the method provided in this embodiment sends information to the network device on the Uu UL spectrum and sends information to the intermediate node on the Uu DL spectrum through the low-power device, providing an implementation method for the low-power device to send information to the intermediate node and / or network device. The low-power device receives information sent by the intermediate node and / or network device on the first spectrum, providing an implementation method for the low-power device to receive information from the intermediate node and / or network device. The implementation method for information transmission between devices in different topologies corresponding to the low-power device can be clarified, thereby supporting the communication system involving low-power devices to be deployed in different topologies. In the above-mentioned topology structure implemented based on the Uu link, since the Uu link is an existing communication link, by reusing the Uu link spectrum, the topology structure based on the Uu link spectrum can meet the spectrum specifications, thereby reducing the implementation cost.

[0431] Regarding the above situation 6:

[0432] FIG27 is a flow chart of a transmission method provided by an exemplary embodiment of the present application. The method can be used in the system shown in FIG8. The method includes:

[0433] Step 2702: The low-power device receives information sent by the intermediate node and / or the network device on the first spectrum.

[0434] In some embodiments, low-power devices include devices that use ambient energy for power. In some embodiments, low-power devices have no energy storage capability or have limited energy storage capability. In some embodiments, low-power devices are equivalent to or can be replaced by zero-power devices, zero-power IoT devices, A-IoT devices, or passive IoT devices.

[0435] In some embodiments, the above information includes at least one of signaling, data and reference signal.

[0436] In some embodiments, the intermediate node comprises a node between the low-power device and the network device. The intermediate node establishes communication connections with the low-power device and the network device, respectively. In some embodiments, the intermediate node is used to transfer information between the network device and the low-power device. In some embodiments, the intermediate node is a terminal.

[0437] In some embodiments, the network device includes an access network device, such as a base station.

[0438] In some embodiments, when the low-power device has the eleventh capability, the low-power device receives information on the first spectrum. The eleventh capability is used to indicate that the low-power device supports receiving information on the first spectrum. In some embodiments, the first spectrum includes at least one of a guard spectrum (guard-band) and an independent spectrum (SA-band). In some embodiments, the guard spectrum belongs to the cellular spectrum, and the guard spectrum includes a portion of bandwidth reserved around (edge ​​of) the used spectrum in the cellular spectrum as a guard interval spectrum to avoid mutual interference between adjacent frequency bands. In some embodiments, the independent spectrum includes a spectrum outside the cellular spectrum that is independent of the cellular spectrum.

[0439] In some embodiments, receiving information on the first spectrum by the low-power device includes at least one of receiving information sent by the network device on the first spectrum and receiving information sent by the intermediate node on the first spectrum. In this case, the network device has a twelfth capability, and the intermediate node has a thirteenth capability. The twelfth capability indicates that the network device supports sending information to the low-power device on the first spectrum. The thirteenth capability indicates that the intermediate node supports sending information to the low-power device on the first spectrum.

[0440] Step 2704: The low-power device sends information to the intermediate node and / or the network device on the first spectrum.

[0441] In some embodiments, when the low-power device has an eighth capability, the low-power device transmits information on the first spectrum. The eighth capability is used to indicate that the low-power device supports transmitting information on the first spectrum.

[0442] In some embodiments, the low-power device transmitting information over the first spectrum includes at least one of the low-power device transmitting information to the network device over the first spectrum and the low-power device transmitting information to the intermediate node over the first spectrum. In this case, the network device has a ninth capability, and the intermediate node has a tenth capability. The ninth capability indicates that the network device supports receiving information sent by the low-power device over the first spectrum. The tenth capability indicates that the intermediate node supports receiving information sent by the low-power device over the first spectrum.

[0443] It should be noted that the above content illustrates the implementation of the transmit and receive capabilities of low-power devices as different capabilities. In some embodiments, the eleventh capability and the eighth capability are combined into a single capability. For example, Figure 28 is a schematic diagram of the spectrum used by the first topology provided by an exemplary embodiment of the present application. Figure 29 is a schematic diagram of the spectrum used by the second topology provided by an exemplary embodiment of the present application. The following is a general introduction to the capabilities of the relevant devices in conjunction with the accompanying drawings.

[0444] In some embodiments, regardless of the topology, low-power devices have an eleventh capability, supporting the reception of information sent by network devices and / or intermediate nodes over the first spectrum. They also have an eighth capability, supporting the transmission of information to network devices and / or intermediate nodes over the first spectrum. In this case, there is no need to distinguish between the capabilities (types) of different low-power devices.

[0445] For intermediate nodes, unlike existing terminals that only need to communicate with network devices, terminals acting as intermediate nodes also need to have the ability to send information to low-power devices on the first spectrum (the thirteenth capability), and / or the ability to receive information sent by low-power devices on the first spectrum (the tenth capability).

[0446] For network equipment, different from existing access network equipment, the network equipment also needs to have the ability to send information to low-power devices on the first spectrum (the twelfth capability), and / or the ability to receive information sent by low-power devices on the first spectrum (the ninth capability).

[0447] In some embodiments, the capabilities of the low-power device are notified to the intermediate node and / or the network device via high-layer signaling, wherein the capabilities of the low-power device are used to indicate the frequency spectrum in which the low-power device transmits information.

[0448] In this embodiment, step 2702 and step 2704 are optional. In different embodiments, one or more of these steps may be omitted or replaced.

[0449] Step 2702 can be implemented as an independent embodiment, such as a receiving method on the low-power device side, a sending method on the intermediate node side, or a sending method on the network device side. Step 2704 can be implemented as an independent embodiment, such as a sending method on the low-power device side, a receiving method on the network device side, or a receiving method on the intermediate node side. Steps 2702 and 2704 can be implemented as independent embodiments, such as a transmission method on the low-power device and the network device side, or a transmission method on the low-power device and the intermediate node side.

[0450] It should be noted that the order of the steps in this embodiment is for illustration only and is not intended to limit the order of the steps when implementing this embodiment. When implementing this embodiment, the order of the steps may be adjusted according to actual circumstances.

[0451] In summary, the method provided in this embodiment sends information to intermediate nodes and / or network devices on the first spectrum via a low-power device, providing an implementation method for low-power devices to send information to intermediate nodes and / or network devices. Receive information sent by network devices and / or intermediate nodes on the first spectrum via a low-power device, providing an implementation method for low-power devices to receive information from intermediate nodes and / or network devices. The implementation method for information transmission between devices in different topologies corresponding to low-power devices can be clarified, thereby supporting the deployment of communication systems involving low-power devices in different topologies. In the above-mentioned topology structure implemented based on the first spectrum, since the first spectrum can be flexibly set, flexible deployment of low-power devices can be achieved.

[0452] It should be noted that the order of the method steps provided in the embodiments of the present application can be appropriately adjusted, the steps can also be increased or decreased accordingly according to the circumstances, and different steps can be freely combined to form new embodiments. Any person skilled in the art who is familiar with the present invention can easily think of the method of variation within the technical scope disclosed in this application, and should be included in the protection scope of this application, so it will not be repeated here. In addition, the order of the above-mentioned different situations does not have a preferred meaning, but is only for the convenience of expression.

[0453] FIG30 is a block diagram of a transmission device provided by an exemplary embodiment of the present application, which can be implemented as a low-power device or a part of a low-power device through software or hardware or a combination of both.

[0454] The transmission module 3001 is used to transmit information on the Uu link spectrum.

[0455] In some embodiments, the apparatus includes a device that uses ambient energy, such as radio frequency energy, light energy, solar energy, thermal energy, mechanical energy, or other ambient energy for its operation. In some embodiments, the apparatus has no energy storage capability or has limited energy storage capability. In some embodiments, the apparatus is equivalent to or can be replaced by a zero-power device, a zero-power IoT device, an Ambient-IoT (A-IoT) device, or a passive IoT device.

[0456] The Uu link spectrum is the spectrum resource used by the Uu link. In some embodiments, the Uu link spectrum is equivalent to / replaceable with the Uu spectrum. In some embodiments, the Uu link is a communication link established based on the Uu interface. In some embodiments, the Uu link is a communication link established between an access network device (e.g., a base station) and a user device (e.g., a terminal) through the Uu interface. The Uu link is different from the sidelink of D2D communication and V2X communication. In some embodiments, the cellular spectrum used by the 3GPP communication system may be referred to as the Uu spectrum. In some embodiments, the Uu spectrum is divided into TDD spectrum and FDD spectrum. In addition, in the spectrum specification, spectrum resources for other radio technologies may also be divided, such as spectrum resources for satellite, Wi-Fi, emergency rescue, etc. In some embodiments, the Uu UL spectrum in this application includes the spectrum used for uplink in the FDD spectrum, and the Uu DL spectrum in this application includes the spectrum used for downlink in the FDD spectrum. In some embodiments, the FDD spectrum belongs to FR1.

[0457] In some embodiments, the device transmitting information includes at least one of sending information and receiving information. The information transmitted by the device includes at least one of signaling, data, and a reference signal.

[0458] In some embodiments, the device transmits information with an intermediate node over a Uu link spectrum. The intermediate node comprises a node between the device and a network device. The intermediate node establishes communication connections with both the device and the network device. In some embodiments, the intermediate node is configured to relay information between the network device and the device. In some embodiments, the intermediate node is a terminal.

[0459] In some embodiments, the apparatus transmits information with a network device on a Uu link spectrum. In some embodiments, the network device includes an access network device, such as a base station.

[0460] In some embodiments, the transmission module 3001 is configured to transmit information on at least one of a Uu UL spectrum and a Uu DL spectrum, and / or receive information on at least one of a Uu UL spectrum and a Uu DL spectrum. The Uu UL is a communication link for a user equipment to transmit information to an access network device, and the Uu DL is a communication link for an access network device to transmit information to a user equipment.

[0461] In some embodiments, the device transmits information to the intermediate node using at least one of the Uu UL spectrum and the Uu DL spectrum. In some embodiments, the device receives information transmitted by the intermediate node using at least one of the Uu UL spectrum and the Uu DL spectrum. In some embodiments, the device transmits information to the network device using at least one of the Uu UL spectrum and the Uu DL spectrum. In some embodiments, the device receives information transmitted by the network device using at least one of the Uu UL spectrum and the Uu DL spectrum. In some embodiments, the device transmits information to the intermediate node and / or the network device using a spectrum other than the Uu link spectrum.

[0462] For the above information transmission, the relevant equipment must have corresponding capabilities. The following introduces the capabilities of the device, intermediate nodes, and network equipment.

[0463] In some embodiments, a device has at least one of the first, third, fifth, sixth, eighth, and eleventh capabilities. The first, third, and eighth capabilities correspond to the device's transmission, while the fifth, sixth, and eleventh capabilities correspond to the device's reception. In some embodiments, an intermediate device has at least one of the second, fourth, seventh, tenth, and thirteenth capabilities. The second, fourth, and tenth capabilities correspond to the intermediate node's reception, while the seventh and thirteenth capabilities correspond to the intermediate node's transmission. In some embodiments, a network device has at least one of the ninth and twelfth capabilities. The ninth capability corresponds to the network device's reception, while the twelfth capability corresponds to the network device's transmission. For details, please refer to the following description.

[0464] Device-specific capabilities:

[0465] In some embodiments, the transmission module 3001 is configured to transmit information on the Uu UL spectrum when the device has a first capability. The first capability is used to indicate that the device supports transmitting information on the Uu UL spectrum.

[0466] In some embodiments, the transmission module 3001 is configured to at least one of transmit information to a network device over a UU UL spectrum and transmit information to an intermediate node over a UU UL spectrum. In this case, the intermediate node has a second capability. The second capability indicates that the intermediate node supports receiving information transmitted by a device over the UU UL spectrum.

[0467] In some embodiments, the transmission module 3001 is configured to transmit information over the Uu DL spectrum if the device has a third capability. The third capability indicates that the device supports transmitting information over the Uu DL spectrum. In some embodiments, the transmission module 3001 is configured to transmit information to an intermediate node over the Uu DL spectrum. In this case, the intermediate node has a fourth capability. The fourth capability indicates that the intermediate node supports receiving information transmitted by the device over the Uu DL spectrum.

[0468] In some embodiments, the transmission module 3001 is configured to receive information on the Uu DL spectrum if the device has a fifth capability. The fifth capability is used to indicate that the device supports receiving information on the Uu DL spectrum. In some embodiments, the transmission module 3001 is configured to receive information sent by a network device on the Uu DL spectrum.

[0469] In some embodiments, the transmission module 3001 is configured to receive information on the UU UL spectrum when the device has a sixth capability. The sixth capability indicates that the device supports receiving information on the UU UL spectrum. In some embodiments, the transmission module 3001 is configured to receive information sent by an intermediate node on the UU UL spectrum. In this case, the intermediate node has a seventh capability. The seventh capability indicates that the intermediate node supports sending information to the device on the UU UL spectrum.

[0470] In some embodiments, the transmission module 3001 is configured to send information on the first spectrum when the device has the eighth capability. The eighth capability is used to indicate that the device supports sending information on the first spectrum. In some embodiments, the first spectrum includes at least one of a guard spectrum (guard-band) and an independent spectrum (SA-band). In some embodiments, the guard spectrum belongs to the cellular spectrum, and the guard spectrum includes a portion of bandwidth reserved around (at the edge of) the used spectrum in the cellular spectrum as a guard interval spectrum to avoid mutual interference between adjacent frequency bands. In some embodiments, the independent spectrum includes a spectrum outside the cellular spectrum that is independent of the cellular spectrum.

[0471] In some embodiments, the transmission module 3001 is configured to at least one of transmit information to a network device over a first spectrum and transmit information to an intermediate node over the first spectrum. In this case, the network device has a ninth capability, and the intermediate node has a tenth capability. The ninth capability indicates that the network device supports receiving information transmitted by the device over the first spectrum. The tenth capability indicates that the intermediate node supports receiving information transmitted by the device over the first spectrum.

[0472] In some embodiments, the transmission module 3001 is configured to receive information on the first spectrum when the device has an eleventh capability. The eleventh capability is used to indicate that the device supports receiving information on the first spectrum.

[0473] In some embodiments, the transmission module 3001 is configured to receive at least one of information transmitted by a network device over a first spectrum and information transmitted by an intermediate node over the first spectrum. In this case, the network device has a twelfth capability, and the intermediate node has a thirteenth capability. The twelfth capability indicates that the network device supports transmitting information to the device over the first spectrum. The thirteenth capability indicates that the intermediate node supports transmitting information to the device over the first spectrum.

[0474] In some embodiments, the capabilities of a device are communicated to intermediate nodes and / or network devices via high-layer signaling. The device capabilities indicate the spectrum of information transmitted by the device. The device capabilities include at least one of the first capability, third capability, fifth capability, sixth capability, eighth capability, and eleventh capability.

[0475] It should be noted that the sending and receiving capabilities of the above-mentioned devices can be freely combined, and the embodiments of the present application do not impose any restrictions on this. The following introduces possible combinations.

[0476] Capabilities for intermediate nodes:

[0477] In some embodiments, when the intermediate node has the second capability, the intermediate node receives information sent by the device over the UU UL spectrum. In this case, the device has the first capability. The second capability indicates that the intermediate node supports receiving information sent by the device over the UU UL spectrum. The first capability indicates that the device supports sending information over the UU UL spectrum.

[0478] In some embodiments, when the intermediate node has the fourth capability, the intermediate node receives information sent by the device over the Uu DL spectrum. In this case, the device has the third capability. The fourth capability indicates that the intermediate node supports receiving information sent by the device over the Uu DL spectrum. The third capability indicates that the device supports sending information over the Uu DL spectrum.

[0479] In some embodiments, when the intermediate node has the seventh capability, the intermediate node sends information to the device over the UU UL spectrum. In this case, the device has the sixth capability. The seventh capability indicates that the intermediate node supports sending information to the device over the UU UL spectrum. The sixth capability indicates that the device supports receiving information over the UU UL spectrum.

[0480] In some embodiments, when the intermediate node has the tenth capability, the intermediate node receives information sent by the device on the first spectrum. In this case, the device has the eighth capability. The tenth capability indicates that the intermediate node supports receiving information sent by the device on the first spectrum. The eighth capability indicates that the device supports sending information on the first spectrum.

[0481] In some embodiments, when the intermediate node has the thirteenth capability, the intermediate node transmits information to the device over the first spectrum. In this case, the device has the eleventh capability. The thirteenth capability indicates that the intermediate node supports transmitting information to the device over the first spectrum. The eleventh capability indicates that the device supports receiving information over the first spectrum.

[0482] It should be noted that the sending and receiving capabilities of the above-mentioned intermediate nodes can be freely combined, and the embodiments of the present application do not limit this.

[0483] Capabilities for network devices:

[0484] In some embodiments, the network device receives information sent by the device in the Uu UL spectrum. In this case, the device has a first capability. The first capability is used to indicate that the device supports sending information in the Uu UL spectrum.

[0485] In some embodiments, the network device sends information to the device over the Uu DL spectrum. In this case, the device has the fifth capability. The fifth capability is used to indicate that the device supports receiving information over the Uu DL spectrum.

[0486] In some embodiments, when the network device has the ninth capability, the network device receives information sent by the device over the first spectrum. In this case, the device has the eighth capability. The ninth capability indicates that the network device supports receiving information sent by the device over the first spectrum. The eighth capability indicates that the device supports sending information over the first spectrum.

[0487] In some embodiments, when a network device has the twelfth capability, the network device transmits information to a device over a first spectrum. In this case, the device has the eleventh capability. The first spectrum includes at least one of a guard spectrum and an independent spectrum. The twelfth capability indicates that the network device supports transmitting information to the device over the first spectrum. The eleventh capability indicates that the device supports receiving information over the first spectrum.

[0488] It should be noted that the sending and receiving capabilities of the above-mentioned network devices can be freely combined, and the embodiments of the present application do not limit this.

[0489] In some embodiments, the apparatus provided by the embodiments of the present application includes a transmission module 3001, which supports the execution of all transmission-related steps performed by the low-power device in each of the above embodiments.

[0490] In some embodiments, the device provided by the embodiments of the present application includes multiple transmission modules 3001, which respectively support the execution of some transmission-related steps performed by the low-power device in each of the above-mentioned embodiments. For example, the transmission module 3001 can be divided into a sending module for performing sending and a receiving module for performing receiving.

[0491] In some embodiments, the steps performed by different transmission modules 3001 are exactly the same, partially the same, or completely different.

[0492] In summary, the device provided in this embodiment transmits information over the Uu link spectrum, providing an implementation method for information transmission between the device and intermediate nodes and / or network devices. This method can clarify the implementation method for information transmission between devices in different topologies corresponding to the device, thereby supporting the deployment of communication systems involving the device in different topologies. In the above-mentioned topology based on the Uu link, since the Uu link is an existing communication link, by reusing the Uu link spectrum, the topology based on the Uu link spectrum can meet the spectrum specifications, reducing implementation costs.

[0493] FIG31 is a block diagram of a transmission device provided by an exemplary embodiment of the present application, which can be implemented as an intermediate node or a part of an intermediate node through software or hardware or a combination of both. The device includes a transmission module 3101 .

[0494] The transmission module 3101 is configured to transmit information with the low-power device on the Uu link spectrum.

[0495] In some embodiments, low-power devices include devices that use ambient energy for power. In some embodiments, low-power devices have no energy storage capability or have limited energy storage capability. In some embodiments, low-power devices are equivalent to or can be replaced by zero-power devices, zero-power IoT devices, A-IoT devices, or passive IoT devices.

[0496] The Uu link spectrum is the spectrum resource used by the Uu link. In some embodiments, the Uu link spectrum is equivalent to / replaceable with the Uu spectrum. In some embodiments, the Uu link is a communication link established based on the Uu interface. In some embodiments, the Uu link is a communication link established between the access network device and the user equipment through the Uu interface. The Uu link is different from the sidelink of D2D communication and V2X communication. In some embodiments, the cellular spectrum used by the 3GPP communication system can be called the Uu spectrum. In some embodiments, the Uu spectrum is divided into TDD spectrum and FDD spectrum. In addition, the spectrum specifications may also divide spectrum resources for other radio technologies, such as spectrum resources for satellite, Wi-Fi, emergency rescue, etc. In some embodiments, the Uu UL spectrum in this application includes the spectrum used for uplink in the FDD spectrum, and the Uu DL spectrum in this application includes the spectrum used for downlink in the FDD spectrum. In some embodiments, the FDD spectrum belongs to FR1.

[0497] In some embodiments, transmitting information with the low-power device includes at least one of sending information to the low-power device and receiving information sent by the low-power device. The transmitted information includes at least one of signaling, data, and a reference signal.

[0498] In some embodiments, the apparatus comprises a node between a low-power device and a network device. The apparatus establishes communication connections with the low-power device and the network device, respectively. In some embodiments, the apparatus is configured to relay information between the network device and the low-power device. In some embodiments, the apparatus is a terminal.

[0499] In some embodiments, the apparatus transmits information to the low-power device on at least one of the Uu UL spectrum and the Uu DL spectrum, and / or the apparatus receives information transmitted by the low-power device on at least one of the Uu UL spectrum and the Uu DL spectrum. In some embodiments, the apparatus transmits information to the low-power device on a spectrum other than the Uu link spectrum.

[0500] In some embodiments, the transmission module 3101 is configured to receive information sent by a low-power device over a UU UL spectrum when the apparatus has a second capability. In this case, the low-power device has a first capability. The second capability indicates that the apparatus supports receiving information sent by the low-power device over the UU UL spectrum. The first capability indicates that the low-power device supports sending information over the UU UL spectrum.

[0501] In some embodiments, the transmission module 3101 is configured to receive information sent by a low-power device over a UU DL spectrum when the apparatus has a fourth capability. In this case, the low-power device has a third capability. The fourth capability indicates that the apparatus supports receiving information sent by the low-power device over the UU DL spectrum. The third capability indicates that the low-power device supports sending information over the UU DL spectrum.

[0502] In some embodiments, the transmission module 3101 is configured to transmit information to the low-power device over the UU UL spectrum when the apparatus has the seventh capability. In this case, the low-power device has the sixth capability. The seventh capability indicates that the apparatus supports transmitting information to the low-power device over the UU UL spectrum. The sixth capability indicates that the low-power device supports receiving information over the UU UL spectrum.

[0503] In some embodiments, the transmission module 3101 is configured to receive information sent by a low-power device on a first spectrum when the apparatus has the tenth capability. In this case, the low-power device has the eighth capability. The tenth capability is used to indicate that the apparatus supports receiving information sent by a low-power device on the first spectrum. The eighth capability is used to indicate that the low-power device supports sending information on the first spectrum. In some embodiments, the first spectrum includes at least one of a guard spectrum (guard-band) and an independent spectrum (SA-band). In some embodiments, the guard spectrum belongs to a cellular spectrum, and the guard spectrum includes a portion of bandwidth reserved around (edge ​​of) a used spectrum in the cellular spectrum as a guard interval spectrum, which is used to avoid mutual interference between adjacent frequency bands. In some embodiments, the independent spectrum includes a spectrum outside the cellular spectrum that is independent of the cellular spectrum.

[0504] In some embodiments, the transmission module 3101 is configured to transmit information to the low-power device over the first spectrum when the apparatus has the thirteenth capability. In this case, the low-power device has the eleventh capability. The thirteenth capability indicates that the apparatus supports transmitting information to the low-power device over the first spectrum. The eleventh capability indicates that the low-power device supports receiving information over the first spectrum.

[0505] It should be noted that the sending and receiving capabilities of the above-mentioned devices can be freely combined, and the embodiments of the present application do not limit this.

[0506] In some embodiments, the apparatus provided by the embodiments of the present application includes a transmission module 3101, which supports the execution of all transmission-related steps performed by the low-power device in each of the above embodiments.

[0507] In some embodiments, the device provided by the embodiments of the present application includes multiple transmission modules 3101, which respectively support the execution of some transmission-related steps performed by the low-power device in each of the above-mentioned embodiments. For example, the transmission module 3101 can be divided into a sending module for performing sending and a receiving module for performing receiving.

[0508] In some embodiments, the steps performed by different transmission modules 3101 are exactly the same, partially the same, or completely different.

[0509] In summary, the device provided in this embodiment transmits information between the device and the low-power device on the Uu link spectrum, providing an implementation method for information transmission between the low-power device and the device. This method can clarify the implementation method for information transmission between devices in different topologies corresponding to the low-power device, thereby supporting the deployment of communication systems involving low-power devices in different topologies. In the above-mentioned topology structure implemented based on the Uu link, since the Uu link is an existing communication link, by reusing the Uu link spectrum, the topology structure based on the Uu link spectrum can meet the spectrum specifications, reducing the implementation cost.

[0510] FIG32 is a block diagram of a transmission device provided by an exemplary embodiment of the present application, which can be implemented as a network device or a part of a network device through software or hardware or a combination of both. The device includes a transmission module 3201 .

[0511] The transmission module 3201 is configured to transmit information with the low-power device on the Uu link spectrum.

[0512] In some embodiments, low-power devices include devices that use ambient energy for power. In some embodiments, low-power devices have no energy storage capability or have limited energy storage capability. In some embodiments, low-power devices are equivalent to or can be replaced by zero-power devices, zero-power IoT devices, A-IoT devices, or passive IoT devices.

[0513] The Uu link spectrum is the spectrum resource used by the Uu link. In some embodiments, the Uu link spectrum is equivalent to / replaceable with the Uu spectrum. In some embodiments, the Uu link is a communication link established based on the Uu interface. In some embodiments, the Uu link is a communication link established between the access network device and the user equipment through the Uu interface. The Uu link is different from the sidelink of D2D communication and V2X communication. In some embodiments, the cellular spectrum used by the 3GPP communication system can be called the Uu spectrum. In some embodiments, the Uu spectrum is divided into TDD spectrum and FDD spectrum. In addition, the spectrum specifications may also divide spectrum resources for other radio technologies, such as spectrum resources for satellite, Wi-Fi, emergency rescue, etc. In some embodiments, the Uu UL spectrum in this application includes the spectrum used for uplink in the FDD spectrum, and the Uu DL spectrum in this application includes the spectrum used for downlink in the FDD spectrum. In some embodiments, the FDD spectrum belongs to FR1.

[0514] In some embodiments, transmitting information with the low-power device includes at least one of sending information to the low-power device and receiving information sent by the low-power device. The transmitted information includes at least one of signaling, data, and a reference signal.

[0515] In some embodiments, the apparatus includes an access network device, such as a base station.

[0516] In some embodiments, the apparatus transmits information to the low-power device on at least one of the Uu UL spectrum and the Uu DL spectrum, and / or the apparatus receives information transmitted by the low-power device on at least one of the Uu UL spectrum and the Uu DL spectrum. In some embodiments, the apparatus transmits information to the low-power device on a spectrum other than the Uu link spectrum.

[0517] In some embodiments, the transmission module 3201 is configured to receive information sent by a low-power device on a Uu UL spectrum. In this case, the low-power device has a first capability. The first capability is used to indicate that the low-power device supports sending information on the Uu UL spectrum.

[0518] In some embodiments, the transmission module 3201 is configured to send information to the low-power device on the Uu DL spectrum. In this case, the low-power device has a fifth capability. The fifth capability is used to indicate that the low-power device supports receiving information on the Uu DL spectrum.

[0519] In some embodiments, the transmission module 3201 is configured to receive information sent by a low-power device on a first spectrum when the apparatus has a ninth capability. In this case, the low-power device has an eighth capability. The ninth capability is used to indicate that the apparatus supports receiving information sent by a low-power device on a first spectrum. The eighth capability is used to indicate that the low-power device supports sending information on a first spectrum. In some embodiments, the first spectrum includes at least one of a guard spectrum (guard-band) and an independent spectrum (SA-band). In some embodiments, the guard spectrum belongs to a cellular spectrum, and the guard spectrum includes a portion of bandwidth reserved around (edge ​​of) a used spectrum in the cellular spectrum as a guard interval spectrum, which is used to avoid mutual interference between adjacent frequency bands. In some embodiments, the independent spectrum includes a spectrum outside the cellular spectrum that is independent of the cellular spectrum.

[0520] In some embodiments, the transmission module 3201 is configured to transmit information to the low-power device over a first spectrum when the apparatus has the twelfth capability. In this case, the low-power device has the eleventh capability. The first spectrum includes at least one of a guard spectrum and an independent spectrum. The twelfth capability indicates that the apparatus supports transmitting information to the low-power device over the first spectrum. The eleventh capability indicates that the low-power device supports receiving information over the first spectrum.

[0521] It should be noted that the sending and receiving capabilities of the above-mentioned devices can be freely combined, and the embodiments of the present application do not limit this.

[0522] In some embodiments, the apparatus provided by the embodiments of the present application includes a transmission module 3201, which supports the execution of all transmission-related steps performed by the low-power device in each of the above embodiments.

[0523] In some embodiments, the device provided by the embodiments of the present application includes multiple transmission modules 3201, which respectively support the execution of some transmission-related steps performed by the low-power device in each of the above-mentioned embodiments. For example, the transmission module 3201 can be divided into a sending module for performing sending and a receiving module for performing receiving.

[0524] In some embodiments, the steps performed by different transmission modules 3201 are exactly the same, partially the same, or completely different.

[0525] In summary, the device provided in this embodiment transmits information between the device and the low-power device on the Uu link spectrum, providing an implementation method for information transmission between the low-power device and the device. This method can clarify the implementation method for information transmission between devices in different topologies corresponding to the low-power device, thereby supporting the deployment of communication systems involving low-power devices in different topologies. In the above-mentioned topology structure implemented based on the Uu link, since the Uu link is an existing communication link, by reusing the Uu link spectrum, the topology structure based on the Uu link spectrum can meet the spectrum specifications, reducing the implementation cost.

[0526] It should be noted that the device provided in the above embodiment only uses the division of the above-mentioned functional modules as an example to implement its functions. In actual applications, the above-mentioned functions can be assigned to different functional modules according to actual needs, that is, the content structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0527] Regarding the apparatus in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0528] Figure 33 is a structural diagram of a communication device provided by an exemplary embodiment of the present application. The communication device is a terminal or a network device. The communication device 3300 includes: a processor 3301, a receiver 3302, a transmitter 3303, a memory 3304 and a bus 3305.

[0529] The processor 3301 includes one or more processing cores. The processor 3301 executes various functional applications and information processing by running software programs and modules.

[0530] The receiver 3302 and the transmitter 3303 may be implemented as a communication component, which may be a communication chip.

[0531] The memory 3304 is connected to the processor 3301 via a bus 3305. The memory 3304 may be used to store at least one instruction, and the processor 3301 may be used to execute the at least one instruction to implement each step in the above method embodiment.

[0532] In addition, the memory 3304 can be implemented by any type of volatile or non-volatile storage device or a combination thereof. Volatile or non-volatile storage devices include but are not limited to: magnetic disks or optical disks, Electrically Erasable Programmable Read Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Static Random-Access Memory (SRAM), Read-Only Memory (ROM), magnetic memory, flash memory, and Programmable Read-Only Memory (PROM).

[0533] In some embodiments, when the communication device is implemented as a low-power device, the processor 3301 is configured to transmit information on the Uu link spectrum. In some embodiments, the processor 3301 is further configured to execute other processing-related steps in the above method embodiments.

[0534] In some embodiments, when the communication device is implemented as an intermediate node, the processor 3301 is configured to transmit information with the low-power device over the Uu link spectrum; wherein the intermediate node includes a node between the low-power device and the network device. In some embodiments, the processor 3301 is further configured to execute other processing-related steps in the above method embodiments.

[0535] In some embodiments, when the communication device is implemented as a network device, the processor 3301 is configured to transmit information with the low-power device on the Uu link spectrum. In some embodiments, the processor 3301 is further configured to execute other processing-related steps in the above method embodiments.

[0536] In some embodiments, the receiver 3302 receives signals / data independently, or the processor 3301 controls the receiver 3302 to receive signals / data, or the processor 3301 requests the receiver 3302 to receive signals / data, or the processor 3301 cooperates with the receiver 3302 to receive signals / data.

[0537] In some embodiments, the transmitter 3303 independently sends signals / data, or the processor 3301 controls the transmitter 3303 to send signals / data, or the processor 3301 requests the transmitter 3303 to send signals / data, or the processor 3301 cooperates with the transmitter 3303 to send signals / data.

[0538] In some embodiments, the processor 3301 and the receiver 3302 may be implemented as one module, or the processor 3301 may be implemented as a part of the receiver 3302 .

[0539] In some embodiments, the receiver 3302 may be implemented as a receiver. Optionally, the receiver includes the processor 3301 or does not include the processor 3301.

[0540] In some embodiments, the processor 3301 and the transmitter 3303 may be implemented as one module, or the processor 3301 may be implemented as a part of the transmitter 3303 .

[0541] In some embodiments, the transmitter 3303 may be implemented as a transmitter. Optionally, the receiver includes the processor 3301 or does not include the processor 3301.

[0542] In an exemplary embodiment, a computer-readable storage medium is also provided, in which at least one instruction, at least one program, code set or instruction set is stored. The at least one instruction, the at least one program, the code set or instruction set is loaded and executed by a processor to implement the transmission method provided by the above-mentioned various method embodiments.

[0543] In an exemplary embodiment, a chip is also provided, which includes a programmable logic circuit and / or program instructions. When the chip runs on a communication device, it is used to implement the transmission method provided by the above-mentioned various method embodiments based on the programmable logic circuit and / or program.

[0544] In an exemplary embodiment, a computer program product is further provided. When the computer program product is executed on a processor of a computer device, the computer device is enabled to perform the above transmission method.

[0545] In an exemplary embodiment, a computer program is further provided. The computer program includes computer instructions. A processor of a computer device executes the computer instructions, so that the computer device performs the above-mentioned transmission method.

[0546] Those skilled in the art will appreciate that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented using hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any media that facilitates the transmission of computer programs from one place to another. The storage medium can be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0547] The above description is merely an exemplary embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A transmission method, characterized in that, The method is executed by a low-power device, and the method includes: The low-power device transmits information on the Uu link spectrum.

2. The method according to claim 1, characterized in that The low-power device transmitting information on the Uu link spectrum includes: The low-power device sends the information on at least one of the Uu uplink (UL) spectrum and the Uu downlink (DL) spectrum, and / or the low-power device receives the information on at least one of the Uu UL spectrum and the Uu DL spectrum.

3. The method according to claim 2, characterized in that, The low-power device sending the information on at least one of the Uu UL spectrum and the Uu DL spectrum includes: When the low-power device has a first capability, the low-power device sends the information on the Uu UL spectrum.

4. The method according to claim 3, characterized in that, The low-power device sending the information on the Uu UL spectrum includes at least one of the following: The low-power device sends the information to a network device on the Uu UL spectrum; The low-power device sends the information to an intermediate node on the Uu UL spectrum, and the intermediate node has a second capability; Wherein, the intermediate node includes a node between the low-power device and the network device.

5. The method according to any one of claims 2 to 4, characterized in that The low-power device sending the information on at least one of the Uu UL spectrum and the Uu DL spectrum includes: When the low-power device has a third capability, the low-power device sends the information on the Uu DL spectrum.

6. The method according to claim 5, characterized in that, The low-power device sending the information on the Uu DL spectrum includes: The low-power device sends the information to an intermediate node on the Uu DL spectrum, and the intermediate node has a fourth capability; Wherein, the intermediate node includes a node between the low-power device and the network device.

7. The method according to any one of claims 2 to 6, characterized in that The low-power device receiving the information on at least one of the Uu UL spectrum and the Uu DL spectrum includes at least one of the following: When the low-power device has a fifth capability, the low-power device receives the information on the Uu DL spectrum; When the low-power device has a sixth capability, the low-power device receives the information on the Uu UL spectrum.

8. The method according to claim 7, wherein The low-power device receiving the information on the Uu DL spectrum includes: The low-power device receives the information sent by the network device on the Uu DL spectrum.

9. The method according to claim 7 or 8, characterized in that, The low-power device receiving the information on the Uu UL spectrum includes: The low-power device receives the information sent by an intermediate node on the Uu UL spectrum, and the intermediate node has a seventh capability; Wherein, the intermediate node includes a node between the low-power device and the network device.

10. The method according to any one of claims 1 to 9, characterized in that, The method further includes: When the low-power device has an eighth capability, the low-power device sends the information on a first spectrum; Wherein, the first spectrum includes at least one of a guard spectrum and an independent spectrum.

11. The method according to claim 10, wherein The low-power device sending the information on the first spectrum includes at least one of the following: The low-power device sends the information to a network device on the first spectrum, and the network device has a ninth capability; The low-power device sends the information to an intermediate node on the first spectrum, and the intermediate node has a tenth capability; Wherein, the intermediate node includes a node between the low-power device and the network device.

12. The method according to any one of claims 1 to 11, characterized in that, The method further includes: When the low-power device has an eleventh capability, the low-power device receives the information on the first spectrum; Wherein, the first spectrum includes at least one of a protected spectrum and an independent spectrum.

13. The method according to claim 12, wherein The low-power device receiving the information on the first spectrum includes at least one of the following: The low-power device receives the information sent by a network device on the first spectrum, and the network device has a twelfth capability; The low-power device receives the information sent by an intermediate node on the first spectrum, and the intermediate node has a thirteenth capability; Wherein, the intermediate node includes a node between the low-power device and the network device.

14. The method according to any one of claims 1 to 13, characterized in that The capability of the low-power device is notified to the intermediate node and / or the network device through high-layer signaling; Wherein, the capability of the low-power device is used to indicate the spectrum on which the low-power device transmits the information, and the intermediate node includes a node between the low-power device and the network device.

15. The method according to any one of claims 1 to 14, characterized in that The information includes at least one of signaling and data.

16. A transmission method, characterized in that, The method is executed by an intermediate node, and the method includes: The intermediate node transmits information with the low-power device on the Uu link spectrum; Wherein, the intermediate node includes a node between the low-power device and the network device.

17. The method according to claim 16, wherein The intermediate node transmitting information with the low-power device on the Uu link spectrum includes: When the intermediate node has a second capability, the intermediate node receives the information sent by the low-power device on the Uu UL spectrum, and the low-power device has a first capability.

18. The method according to claim 16 or 17, characterized in that, The intermediate node transmitting information with the low-power device on the Uu link spectrum includes: When the intermediate node has a fourth capability, the intermediate node receives the information sent by the low-power device on the Uu DL spectrum, and the low-power device has a third capability.

19. The method according to any one of claims 16 to 18, characterized in that, The intermediate node transmitting information with the low-power device on the Uu link spectrum includes: When the intermediate node has a seventh capability, the intermediate node sends the information to the low-power device on the Uu UL spectrum, and the low-power device has a sixth capability.

20. The method according to any one of claims 16 to 19, characterized in that, The method further includes: When the intermediate node has a tenth capability, the intermediate node receives the information sent by the low-power device on the first spectrum, and the low-power device has an eighth capability; Wherein, the first spectrum includes at least one of a protected spectrum and an independent spectrum.

21. The method according to any one of claims 16 to 20, characterized in that, The method further includes: When the intermediate node has a thirteenth capability, the intermediate node sends the information to the low-power device on the first spectrum, and the low-power device has an eleventh capability; Wherein, the first spectrum includes at least one of a protected spectrum and an independent spectrum.

22. The method according to any one of claims 16 to 21, characterized in that, The capabilities of the low-power device are notified to the intermediate node through high-layer signaling; wherein, the capabilities of the low-power device are used to indicate the spectrum on which the low-power device transmits the information.

23. The method according to any one of claims 16 to 22, characterized in that, The information includes at least one of signaling and data.

24. A transmission method, characterized in that, The method is performed by a network device, and the method includes: The network device transmits information with a low-power device on the Uu link spectrum.

25. The method according to claim 24, characterized in that, The network device transmits information with a low-power device on the Uu link spectrum, including: The network device receives the information sent by the low-power device on the Uu UL spectrum, and the low-power device has a first capability.

26. The method according to claim 24 or 25, characterized in that, The network device transmits information with a low-power device on the Uu link spectrum, including: The network device sends the information to the low-power device on the Uu DL spectrum, and the low-power device has a fifth capability.

27. The method according to any one of claims 24 to 26, characterized in that, The method further includes: When the network device has a ninth capability, the network device receives the information sent by the low-power device on a first spectrum, and the low-power device has an eighth capability; wherein, the first spectrum includes at least one of a guard spectrum and an independent spectrum.

28. The method according to any one of claims 24 to 27, characterized in that, The method further includes: When the network device has a twelfth capability, the network device sends the information to the low-power device on a first spectrum, and the low-power device has an eleventh capability; wherein, the first spectrum includes at least one of a guard spectrum and an independent spectrum.

29. The method according to any one of claims 24 to 28, characterized in that, The capabilities of the low-power device are notified to the network device through high-layer signaling; wherein, the capabilities of the low-power device are used to indicate the spectrum on which the low-power device transmits the information.

30. The method according to any one of claims 24 to 29, characterized in that, The information includes at least one of signaling and data.

31. A transmission device, characterized in that, The apparatus includes: A transmission module, configured to transmit information on the Uu link spectrum.

32. A transmission device, characterized in that, The apparatus includes: A transmission module, configured to transmit information with a low-power device on the Uu link spectrum; wherein, the apparatus includes a node between the low-power device and the network device.

33. A transmission device, characterized in that, The apparatus includes: A transmission module, configured to transmit information with a low-power device on the Uu link spectrum.

34. A low-power device, characterized in that, The low-power device includes: A processor; A transceiver connected to the processor; A memory for storing executable instructions of the processor; wherein, the low-power device is configured to transmit information on the Uu link spectrum.

35. The low-power device according to claim 34, wherein, The low-power device is configured to: Send the information on at least one of the Uu UL spectrum and the Uu DL spectrum, and / or, receive the information on at least one of the Uu UL spectrum and the Uu DL spectrum.

36. The low-power device according to claim 35, wherein The low-power device is configured to: When the low-power device has a first capability, send the information on the Uu UL spectrum.

37. The low-power device according to claim 36, wherein The low-power device is configured to be at least one of the following: Send the information to the network device on the Uu UL spectrum; Send the information to an intermediate node on the Uu UL spectrum, and the intermediate node has a second capability; wherein, the intermediate node includes a node between the low-power device and the network device.

38. The low-power device according to any one of claims 35 to 37, characterized in that The low-power device is configured to: When the low-power device has a third capability, the information is sent on the Uu DL spectrum.

39. The low-power device according to claim 38, characterized in that, The low-power device is configured to: send the information to an intermediate node on the Uu DL spectrum, where the intermediate node has a fourth capability; wherein the intermediate node includes a node between the low-power device and the network device.

40. The low-power device according to any one of claims 35 to 39, characterized in that The low-power device is configured to at least one of the following: receive the information on the Uu DL spectrum when the low-power device has a fifth capability; receive the information on the Uu UL spectrum when the low-power device has a sixth capability.

41. The low-power device according to claim 40, wherein, The low-power device is configured to: receive the information sent by the network device on the Uu DL spectrum.

42. The low-power device according to claim 40 or 41, characterized in that, The low-power device is configured to: receive the information sent by the intermediate node on the Uu UL spectrum, where the intermediate node has a seventh capability; wherein the intermediate node includes a node between the low-power device and the network device.

43. The low-power device according to any one of claims 34 to 42, characterized in that, The low-power device is configured to: send the information on a first spectrum when the low-power device has an eighth capability; wherein the first spectrum includes at least one of a guard spectrum and an independent spectrum.

44. The low-power device according to claim 43, wherein The low-power device is configured to at least one of the following: send the information to the network device on the first spectrum, where the network device has a ninth capability; send the information to the intermediate node on the first spectrum, where the intermediate node has a tenth capability; wherein the intermediate node includes a node between the low-power device and the network device.

45. The low-power device according to any one of claims 34 to 44, characterized in that, The low-power device is configured to: receive the information on the first spectrum when the low-power device has an eleventh capability; wherein the first spectrum includes at least one of a guard spectrum and an independent spectrum.

46. The low-power device according to claim 45, wherein The low-power device is configured to at least one of the following: receive the information sent by the network device on the first spectrum, where the network device has a twelfth capability; receive the information sent by the intermediate node on the first spectrum, where the intermediate node has a thirteenth capability; wherein the intermediate node includes a node between the low-power device and the network device.

47. The low-power device according to any one of claims 34 to 46, characterized in that, The capabilities of the low-power device are notified to the intermediate node and / or the network device through higher-layer signaling; wherein the capabilities of the low-power device are used to indicate the spectrum on which the low-power device transmits the information, and the intermediate node includes a node between the low-power device and the network device.

48. The low-power device according to any one of claims 34 to 47, characterized in that The information includes at least one of signaling and data.

49. An intermediate node, characterized in that, The intermediate node includes: a processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor; wherein the intermediate node is configured to transmit information with the low-power device on the Uu link spectrum; wherein the intermediate node includes a node between the low-power device and the network device.

50. The intermediate node according to claim 49, wherein The intermediate node is configured to: receive the information sent by the low-power device on the Uu UL spectrum when the intermediate node has a second capability, and the low-power device has a first capability.

51. The intermediate node according to claim 49 or 50, characterized in that, The intermediate node is configured to: When the intermediate node has a fourth capability, receive the information sent by the low-power device on the Uu DL spectrum, where the low-power device has a third capability.

52. The intermediate node according to any one of claims 49 to 51, characterized in that, The intermediate node is configured to: When the intermediate node has a seventh capability, send the information to the low-power device on the Uu UL spectrum, where the low-power device has a sixth capability.

53. The intermediate node according to any one of claims 49 to 52, characterized in that, The intermediate node is configured to: When the intermediate node has a tenth capability, receive the information sent by the low-power device on a first spectrum, where the low-power device has an eighth capability; Wherein, the first spectrum includes at least one of a guard spectrum and an independent spectrum.

54. The intermediate node according to any one of claims 49 to 53, characterized in that, The intermediate node is configured to: When the intermediate node has a thirteenth capability, send the information to the low-power device on a first spectrum, where the low-power device has an eleventh capability; Wherein, the first spectrum includes at least one of a guard spectrum and an independent spectrum.

55. The intermediate node according to any one of claims 49 to 54, characterized in that, The capabilities of the low-power device are notified to the intermediate node through high-layer signaling; Wherein, the capabilities of the low-power device are used to indicate the spectrum on which the low-power device transmits the information.

56. The intermediate node according to any one of claims 49 to 55, characterized in that, The information includes at least one of signaling and data.

57. A network device, characterized in that, The network device includes: A processor; A transceiver connected to the processor; A memory for storing executable instructions of the processor; Wherein, the network device is configured to transmit information with a low-power device on the Uu link spectrum.

58. The network device according to claim 57, wherein The network device is configured to: Receive the information sent by the low-power device on the Uu UL spectrum, where the low-power device has a first capability.

59. The network device according to claim 57 or 58, characterized in that, The network device is configured to: Send the information to the low-power device on the Uu DL spectrum, where the low-power device has a fifth capability.

60. The network device according to any one of claims 57 to 59, characterized in that, The network device is configured to: When the network device has a ninth capability, receive the information sent by the low-power device on a first spectrum, where the low-power device has an eighth capability; Wherein, the first spectrum includes at least one of a guard spectrum and an independent spectrum.

61. The network device according to any one of claims 57 to 60, characterized in that, The network device is configured to: When the network device has a twelfth capability, send the information to the low-power device on a first spectrum, where the low-power device has an eleventh capability; Wherein, the first spectrum includes at least one of a guard spectrum and an independent spectrum.

62. The network device according to any one of claims 57 to 61, characterized in that, The capabilities of the low-power device are notified to the network device through high-layer signaling; Wherein, the capabilities of the low-power device are used to indicate the spectrum on which the low-power device transmits the information.

63. The network device according to any one of claims 57 to 62, characterized in that, The information includes at least one of signaling and data.

64. A computer-readable storage medium, characterized in that, Executable instructions are stored in the readable storage medium, and the executable instructions are loaded and executed by the processor to implement the transmission method as described in any one of claims 1 to 30.

65. A chip, characterized in that, The chip includes a programmable logic circuit or program, and the chip is used to implement the transmission method as described in any one of claims 1 to 30 based on the programmable logic circuit or program.

66. A computer program product, characterized in that, The computer program product includes computer instructions, the computer instructions are stored in a computer-readable storage medium, a processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes the transmission method according to any one of claims 1 to 30.

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