Wireless communication method and device
Patent Information
- Application Number
- CN202380089746.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-01-03
- Publication Date
- 2025-08-08
AI Technical Summary
In New Radio (NR) systems, the evolution of random communication technology has put forward higher requirements for measurement. How to perform measurements to meet higher measurement requirements is a problem that needs to be solved, especially in terms of power saving and reliability. Sexually.
By measuring the first signal and the second signal, the target measurement result is obtained. The structure of the first signal and the second signal is simple, the measurement result can be obtained reliably, and the measurement is more power-saving. Specific methods include using signal amplitudes to carry information or envelope detection of the received signal.
It achieves efficient and reliable acquisition of measurement results in the NR system, reduces power consumption, and avoids additional resource overhead and reception complexity.
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Figure CN120457747A_ABST
Abstract
Description
Wireless communication method and device Technical Field
[0001] The embodiments of the present application relate to the field of communications, and specifically to a method and device for wireless communications. Background Art
[0002] In New Radio (NR) systems, the evolution of random communication technologies has put forward higher requirements for measurement (such as power saving and reliability). How to perform measurements to meet these higher measurement requirements is a problem that needs to be solved.
[0003] Summary of the Invention
[0004] The present application provides a method and device for wireless communication, in which a first communication device can obtain a target measurement result by measuring a first signal and a second signal. That is, by measuring the first signal and the second signal, the measurement result can be reliably obtained to ensure the measurement quality. In addition, the first signal and the second signal have a simple structure, and the measurement is more power-saving.
[0005] In a first aspect, a wireless communication method is provided, comprising:
[0006] The first communication device obtains a target measurement result by measuring the first signal and the second signal;
[0007] The first signal is a signal that carries information through signal amplitude, or the first signal is a signal received using envelope detection; and / or the second signal is a signal that carries information through signal amplitude, or the second signal is a signal received using envelope detection.
[0008] In a second aspect, a wireless communication method is provided, including:
[0009] The second communication device sends a first signal and a second signal;
[0010] The first signal and the second signal are used by the first communication device to obtain a target measurement result;
[0011] The signal in the first signal is a signal that carries information through signal amplitude, or the signal in the first signal is a signal received using envelope detection; and / or the second signal is a signal that carries information through signal amplitude, or the second signal is a signal received using envelope detection.
[0012] In a third aspect, a communication device is provided for executing the method in the first aspect.
[0013] Specifically, the communication device includes a functional module for executing the method in the above-mentioned first aspect.
[0014] In a fourth aspect, a communication device is provided for executing the method in the second aspect.
[0015] Specifically, the communication device includes a functional module for executing the method in the above-mentioned second aspect.
[0016] In a fifth aspect, a communication device is provided, comprising a processor and a memory; the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, so that the communication device executes the method in the above-mentioned first aspect.
[0017] In a sixth aspect, a communication device is provided, comprising a processor and a memory; the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, so that the communication device executes the method in the above-mentioned second aspect.
[0018] In a seventh aspect, a device is provided for implementing the method in any one of the first to second aspects above.
[0019] Specifically, the apparatus includes: a processor, configured to call and run a computer program from a memory, so that a device equipped with the apparatus executes the method in any one of the first to second aspects described above.
[0020] In an eighth aspect, a computer-readable storage medium is provided for storing a computer program, wherein the computer program enables a computer to execute the method in any one of the first to second aspects above.
[0021] In a ninth aspect, a computer program product is provided, comprising computer program instructions, wherein the computer program instructions enable a computer to execute the method in any one of the first to second aspects above.
[0022] In a tenth aspect, a computer program is provided, which, when executed on a computer, enables the computer to execute the method in any one of the first to second aspects above.
[0023] Through the above technical solution, the first communication device can obtain the target measurement result by measuring the first signal and the second signal. That is, by measuring the first signal and the second signal, the measurement result can be reliably obtained to ensure the measurement quality. In addition, the first signal and the second signal have simple structures and the measurement is more power-saving. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] FIG1 is a schematic diagram of a communication system architecture provided in an embodiment of the present application.
[0025] FIG2 is a diagram of a receiver system based on zero-power wake-up provided by the present application.
[0026] FIG3 is a schematic diagram of an MC-OOK signal generated by multi-carrier modulation provided by the present application.
[0027] FIG4 is a schematic diagram of a modulation depth provided according to an embodiment of the present application.
[0028] FIG5 is a schematic diagram of a constellation point region A and a constellation point region B provided according to an embodiment of the present application.
[0029] FIG6 is a schematic flowchart of a wireless communication method provided according to an embodiment of the present application.
[0030] FIG7 is a schematic diagram of a WUS signal and data signal mapping provided according to an embodiment of the present application.
[0031] FIG8 is a schematic diagram of a WUS signal provided according to an embodiment of the present application.
[0032] 9 to 15 are schematic diagrams of a first signal and a second signal provided according to embodiments of the present application, respectively.
[0033] FIG16 is a schematic block diagram of a communication device provided according to an embodiment of the present application.
[0034] Figure 17 is a schematic block diagram of another communication device provided according to an embodiment of the present application.
[0035] Figure 18 is a schematic block diagram of another communication device provided according to an embodiment of the present application.
[0036] FIG19 is a schematic block diagram of a device provided according to an embodiment of the present application.
[0037] Figure 20 is a schematic block diagram of a communication system provided according to an embodiment of the present application. DETAILED DESCRIPTION
[0038] The following will describe the technical solutions in the embodiments of this application in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. With respect to the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0039] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, NR system evolution system, LTE-based access to unlicensed spectrum (LTE-U) system on unlicensed spectrum, NR-based access to unlicensed spectrum (NR-U) system on unlicensed spectrum, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Internet of Things (IoT), Wireless Fidelity (WFI) system. Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system, sixth-generation communication (6G) system or other communication systems.
[0040] Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communications, but will also support, for example, device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine type communication (MTC), vehicle-to-vehicle (V2V) communication, sidelink (SL) communication, vehicle-to-everything (V2X) communication, etc. The embodiments of the present application can also be applied to these communication systems.
[0041] In some embodiments, the communication system in the embodiments of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, an independent (SA) networking scenario, or a non-standalone (NSA) networking scenario.
[0042] In some embodiments, the communication system in the embodiments of the present application can be applied to an unlicensed spectrum, where the unlicensed spectrum can also be considered as a shared spectrum; or, the communication system in the embodiments of the present application can also be applied to an authorized spectrum, where the authorized spectrum can also be considered as an unshared spectrum.
[0043] In some embodiments, the communication system in the embodiments of the present application can be applied to the FR1 frequency band (corresponding to the frequency band range of 410MHz to 7.125GHz), can also be applied to the FR2 frequency band (corresponding to the frequency band range of 24.25GHz to 52.6GHz), and can also be applied to new frequency bands such as high-frequency bands corresponding to the frequency band range of 52.6GHz to 71GHz or the frequency band range of 71GHz to 114.25GHz.
[0044] The embodiments of the present application describe various embodiments in conjunction with network devices and terminal devices, wherein the terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
[0045] The terminal device can be a station (ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next-generation communication system such as an NR network, or a terminal device in a future evolved Public Land Mobile Network (PLMN) network, etc.
[0046] In an embodiment of the present application, the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons and satellites, etc.).
[0047] In an embodiment of the present application, the terminal device may be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city or a wireless terminal device in a smart home, an in-vehicle communication device, a wireless communication chip / application specific integrated circuit (ASIC) / system on chip (SoC), etc.
[0048] As an example and not a limitation, in the embodiment of the present application, the terminal device may also be a wearable device. Wearable devices may also be called wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are fully functional, large in size, and can achieve complete or partial functions without relying on smartphones, such as smart watches or smart glasses, as well as those that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.
[0049] In an embodiment of the present application, the network device may be a device for communicating with a mobile device. The network device may be an access point (AP) in WLAN, a base station (BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved base station (eNB or eNodeB) in LTE, or a relay station or access point, or a network device or base station (gNB) or a transmission reception point (TRP) in a vehicle-mounted device, a wearable device, and an NR network, or a network device in a future evolved PLMN network or a network device in an NTN network, etc.
[0050] As an example and not a limitation, in an embodiment of the present application, the network device may have a mobile feature, for example, the network device may be a mobile device. In some embodiments, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. In some embodiments, the network device may also be a base station set up in a location such as land or water.
[0051] In an embodiment of the present application, the network device can provide services for a cell, and the terminal device communicates with the network device through the transmission resources used by the cell (for example, frequency domain resources, or spectrum resources). The cell can be a cell corresponding to the network device (for example, a base station). The cell can belong to a macro base station or a base station corresponding to a small cell. The small cells here may include: metro cells, micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
[0052] For example, a communication system 100 used in an embodiment of the present application is shown in FIG1 . The communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120 (or a communication terminal or terminal). The network device 110 may provide communication coverage for a specific geographic area and may communicate with terminal devices within the coverage area.
[0053] FIG1 exemplarily shows a network device and two terminal devices. In some embodiments, the communication system 100 may include multiple network devices and each network device may include another number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.
[0054] In some embodiments, the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiments of the present application.
[0055] It should be understood that in the embodiments of the present application, a device having a communication function in a network / system may be referred to as a communication device. Taking the communication system 100 shown in FIG1 as an example, the communication device may include a network device 110 and a terminal device 120 having a communication function. The network device 110 and the terminal device 120 may be the specific devices described above and will not be described in detail here. The communication device may also include other devices in the communication system 100, such as a network controller, a mobility management entity, and other network entities, which are not limited in the embodiments of the present application.
[0056] It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and / or" is simply a description of an association between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " generally indicates that the related objects are in an "or" relationship.
[0057] It should be understood that this document relates to a first communication device and a second communication device. The first communication device can be a terminal device, such as a mobile phone, machine facilities, customer premises equipment (CPE), industrial equipment, vehicles, etc.; the second communication device can be a peer communication device of the first communication device, such as a network device, mobile phone, industrial equipment, vehicles, etc. In the embodiments of the present application, the first communication device can be a terminal device, and the second communication device can be a network device (i.e., uplink communication or downlink communication); alternatively, the first communication device can be a first terminal, and the second communication device can be a second terminal (i.e., sideline communication).
[0058] The terms used in the embodiments of this application are intended only to explain the specific embodiments of this application and are not intended to limit this application. The terms "first," "second," "third," and "fourth," etc. in the specification and claims of this application and the accompanying drawings are used to distinguish different objects, not to describe a specific order. In addition, the terms "including" and "having," and any variations thereof, are intended to cover non-exclusive inclusions.
[0059] It should be understood that the "indication" mentioned in the embodiments of this application can be a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B.
[0060] 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.
[0061] In the embodiments of the present application, "pre-definition" or "pre-configuration" may be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (e.g., a terminal device and a network device). The present application does not limit the specific implementation method. For example, pre-definition may refer to information defined in a protocol.
[0062] In the embodiments of the present application, the “protocol” may refer to a standard protocol in the communications field, for example, it may be an evolution of an existing LTE protocol, NR protocol, Wi-Fi protocol, or a protocol related to other communications systems. The present application does not limit the protocol type.
[0063] To facilitate a better understanding of the embodiments of the present application, the terminal energy saving based on waking up the receiver related to the present application is explained.
[0064] To further conserve power in terminal equipment (UE), a wake-up receiver (Wake-up receiver) is introduced to receive a wake-up signal (WUS). This wake-up receiver features extremely low cost, low complexity, and extremely low power consumption. It primarily receives the WUS through envelope detection. Therefore, the WUS received by the wake-up receiver differs from the modulation scheme and waveform of the signal carried by the Physical Downlink Control Channel (PDCCH). The wake-up signal primarily consists of an envelope signal modulated by amplitude shift keying (ASK) on a carrier signal. Demodulation of the envelope signal is also primarily accomplished by driving a low-power circuit using energy provided by the wireless RF signal, making it passive. The wake-up receiver can also be powered by the UE. Regardless of the power supply method, it significantly reduces power consumption compared to traditional UE receivers. The wake-up receiver can be integrated with the UE as an additional module, or it can function as a standalone wake-up module for the UE.
[0065] For example, a block diagram of a receiver system based on zero-power wake-up can be shown in Figure 2. The wake-up receiver receives a wake-up signal. If the UE needs to turn on the main receiver, the UE can be instructed to turn on the main receiver. Otherwise, the main receiver of the UE can be in a closed state or a power-off state. It should be noted that the wake-up receiver can also be referred to as a zero-power receiver or a low-power receiver, and the main receiver can also be referred to as a main transceiver. This embodiment of the present application is not limited to this.
[0066] Since the wake-up receiver has extremely low power consumption, it does not need to be turned on and off to save power like a traditional receiver (i.e., the main receiver). Instead, it can remain on to receive the wake-up signal (WUS). The wake-up signal (WUS) can be an envelope signal that performs ASK modulation on a carrier signal. For example, the WUS signal in WiFi technology uses on-off keying (OOK) modulation. The modulation principle of OOK is to modulate the amplitude of the carrier signal to non-zero and zero values, corresponding to on (On) and off (Off), respectively, to represent information bits. OOK is also known as binary amplitude keying (2ASK). As shown in Figure 3, the wake-up radio synchronization (WUR-Sync) part carries a synchronization sequence repeated twice, in which bit 1 is modulated to On and bit 0 is modulated to Off.
[0067] It should be noted that the above-mentioned OOK signal is generated through multi-carrier (MC), so it is called MC-OOK signal. The generation of MC-OOK signal can adopt multi-carrier modulation such as OFDM modulation to generate OOK signal, which can maintain good compatibility with the orthogonal frequency-division multiplexing (OFDM) system and reduce the transmitter complexity introduced by the wake-up radio (WUR) signal. Figure 4 is a schematic diagram of the MC-OOK signal generated by multi-carrier modulation. By mapping the corresponding amplitude values to multiple subcarriers in the frequency domain, the waveform of the time domain signal converted by the inverse discrete Fourier transform (IDFT) is similar to the waveform formed by ASK modulation, where bit 1 is represented by the high level of the signal and bit 0 is represented by the low level of the signal.
[0068] In an OOK signal generated using multiple carriers, the amplitudes of the on and off signals must reach a certain modulation depth for correct demodulation at the receiver. For example, in Wi-Fi MC-OOK signals, the ratio of the average power of the on and off symbols must be at least 20 dB.
[0069] Therefore, when generating the On signal, the assignment of the subcarrier carrying the signal must ensure that the amplitude of the generated time-domain signal meets the modulation depth requirements, and the amplitude of the signal is as flat as possible within the time-domain symbol. Accordingly, the amplitude of the Off signal is as low as possible compared to the symbol of the On signal to meet the modulation depth requirements. Taking 256 Quadrature Amplitude Modulation (QAM) modulation as an example, the above requirements are met by mapping different constellation points on the subcarriers. As shown in Figure 5, the constellation points with larger amplitudes (i.e., constellation points in region A) are mapped to the subcarriers to generate the On signal (WUS "1"), and the constellation points with smaller amplitudes (i.e., constellation points in region B) are mapped to the subcarriers to generate the Off signal (WUS "0"). For the Off signal, the corresponding subcarrier can also be set as a null subcarrier to achieve this.
[0070] In the symbols where the off signal is located, the modulation symbols mapped to the corresponding subcarriers only need to ensure that the time domain waveform meets the low level, and even no modulation symbols are mapped on these carriers.
[0071] In order to facilitate a better understanding of the embodiments of the present application, the zero-power consumption devices related to the present application are described.
[0072] As 5G industry applications expand, the types of connected objects and application scenarios will increase, placing higher demands on the price and power consumption of communication terminals. The application of battery-free, low-cost passive IoT devices has become a key technology for cellular IoT, expanding the types and number of terminals connected to 5G networks and truly realizing the interconnection of everything. Passive IoT devices can be based on existing zero-power devices and expanded upon them for use in cellular IoT.
[0073] Based on the energy source and usage of zero-power terminals, zero-power terminals can be divided into the following types:
[0074] 1) Passive zero-power terminal
[0075] Zero-power terminals do not require internal batteries. When they approach network devices (such as the reader / writer of a radio frequency identification (RFID) system), they are within the near-field radiation generated by the network device's antenna. Consequently, the zero-power terminal's antenna generates an induced current through electromagnetic induction, which drives the low-power chip circuits in the zero-power terminal. This enables forward link signal demodulation and backward link signal modulation. For backscatter links, the zero-power terminal uses backscattering to transmit signals.
[0076] It can be seen that the passive zero-power terminal does not require a built-in battery to drive either the forward link or the reverse link, and is a true zero-power terminal.
[0077] Passive zero-power terminals do not require batteries, and their RF and baseband circuits are very simple. For example, they do not require a low-noise amplifier (LNA), a power amplifier (PA), a crystal oscillator, or an analog-to-digital converter (ADC). Therefore, they have many advantages such as small size, light weight, very low price, and long service life.
[0078] 2) Semi-passive zero-power terminal
[0079] Semi-passive zero-power terminals do not have conventional batteries themselves, but instead use energy harvesting modules to collect ambient energy and store it in an energy storage unit (such as a capacitor). The energy storage unit then drives the low-power chip circuitry of the zero-power terminal, performing tasks such as demodulating forward link signals and modulating reverse link signals. For the reverse link, the zero-power terminal can transmit signals using backscatter or active transmission. Ambient energy can include wireless energy, solar energy, thermal energy, and other energy sources.
[0080] It can be seen that the semi-passive zero-power terminal does not require a built-in battery to drive either the forward link or the reverse link. Although energy stored in capacitors is used in operation, the energy comes from the radio energy collected by the energy harvesting module. Therefore, it is also a true zero-power terminal.
[0081] Semi-passive zero-power consumption terminals inherit many advantages of passive zero-power consumption terminals, and therefore have many advantages such as small size, light weight, very low price, and long service life.
[0082] 3) Active zero-power terminal
[0083] In some scenarios, active zero-power terminals can also be used. These terminals can have built-in batteries. The batteries power the low-power chip circuits in the zero-power terminal, which perform tasks such as demodulating forward link signals and modulating reverse link signals. For reverse link transmission, the zero-power terminal uses backscattering or active transmission.
[0084] Active zero-power terminals are powered by built-in batteries to extend their communication range and improve communication reliability. Therefore, they are used in scenarios with relatively high requirements for communication distance and read latency.
[0085] In NR and Wi-Fi systems, the battery-free and low-cost nature of devices enables low-cost, large-scale deployment and maintenance-free IoT devices. IoT devices that rely on ambient energy in NR and Wi-Fi systems are called ambient IoT. Ambient Power (AMP)-enabled IoT devices operate using energy harvested from ambient sources, such as wireless signals, solar energy, and thermal energy. These devices are similar to passive or semi-passive devices in zero-power communications.
[0086] In order to facilitate a better understanding of the embodiments of the present application, the problems solved by the present application are explained.
[0087] When the UE detects the WUS signal by waking up the receiver, in order to determine the reception quality of the WUS signal and whether it is maintained in the WUS working (WUS on) state, that is, the state of detecting the WUS signal by waking up the receiver, the UE needs to detect the quality of the WUS signal. If the reception quality of the WUS signal meets certain conditions, the WUS on state is maintained, otherwise, it is necessary to exit the WUS on state and turn on the main receiver to receive relevant signals. In order to measure the quality of the WUS signal, it is necessary to measure certain signals, such as synchronization signals, reference signals, measurement signals, etc., which are generally sent periodically. The setting of these signals will bring additional resource overhead and reception complexity. Directly measuring the WUS signal itself can avoid additional resource overhead, but the WUS signal cannot guarantee that the measurement results of periodicity or stability can be obtained, because the WUS signal is sent on demand and the periodicity of the transmission cannot be guaranteed, which will cause the UE to fail to obtain the measurement results in time.
[0088] Based on the above problems, the present application proposes a measurement scheme, in which the first communication device can obtain the target measurement result by measuring the first signal and the second signal. That is, by measuring the first signal and the second signal, the measurement result can be reliably obtained to ensure the measurement quality. In addition, the first signal and the second signal have a simple structure, and the measurement is more power-saving.
[0089] To facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are described in detail below through specific embodiments. The following related technologies can be combined with the technical solutions of the embodiments of the present application as optional solutions, and they all fall within the scope of protection of the embodiments of the present application. The embodiments of the present application include at least part of the following contents.
[0090] FIG6 is a schematic flow chart of a wireless communication method 200 according to an embodiment of the present application. As shown in FIG6 , the wireless communication method 200 may include at least part of the following contents:
[0091] S210, the second communication device sends a first signal and a second signal;
[0092] S220, the first communication device obtains a target measurement result by measuring a first signal and a second signal; wherein the first signal is a signal that carries information through signal amplitude, or the first signal is a signal received using envelope detection; and / or the second signal is a signal that carries information through signal amplitude, or the second signal is a signal received using envelope detection.
[0093] In an embodiment of the present application, the first communication device can obtain the target measurement result by measuring the first signal and the second signal. That is, by measuring the first signal and the second signal, the measurement result can be reliably obtained to ensure the measurement quality. In addition, the first signal and the second signal have a simple structure and the measurement is more power-saving.
[0094] In some embodiments, the target measurement result is used to determine the reception quality of a target signal, where the target signal is a signal that carries information through signal amplitude, or is a signal received using envelope detection. That is, in this embodiment, the first communications device can obtain a measurement result by measuring the first signal and the second signal, and determine the reception quality of the target signal based on the measurement result. In other words, the first communications device can promptly obtain the reception quality of the target signal, thereby ensuring reliable transmission of the target signal.
[0095] In some embodiments, the target measurement result is a Radio Resource Management (RRM) measurement result. That is, in this embodiment, the first communication device obtains the RRM measurement result by measuring the first signal and the second signal. Since the first signal and the second signal have simple structures, the RRM measurement is more power-efficient. Optionally, the wake-up receiver of the first communication device (such as a terminal) obtains the RRM measurement result by measuring the first signal and the second signal, thereby avoiding waking up the main receiver of the first communication device (such as a terminal) to perform the RRM measurement, thereby saving power for the first communication device (such as a terminal).
[0096] In some embodiments, the target measurement result is a mobility measurement result. That is, in this embodiment, the first communication device obtains the mobility measurement result by measuring the first signal and the second signal. Due to the simple structure of the first signal and the second signal, the mobility measurement is more power-efficient. Optionally, the wake-up receiver of the first communication device (e.g., a terminal) obtains the mobility measurement result by measuring the first signal and the second signal, thereby avoiding waking up the main receiver of the first communication device (e.g., a terminal) to perform the mobility measurement, thereby saving power for the first communication device (e.g., a terminal).
[0097] In some embodiments, the target measurement result is a radio link monitoring (RLM) measurement result. That is, in this embodiment, the first communication device obtains the RLM measurement result by measuring the first signal and the second signal. Since the first signal and the second signal have simple structures, the RLM measurement is more power-efficient. Optionally, the wake-up receiver of the first communication device (such as a terminal) obtains the RLM measurement result by measuring the first signal and the second signal, thereby avoiding waking up the main receiver of the first communication device (such as a terminal) to perform the RLM measurement, thereby achieving power saving for the first communication device (such as a terminal).
[0098] In some embodiments, the first communication device may also measure other signals including the first signal and the second signal to obtain the target measurement result, which is not limited in this embodiment of the present application.
[0099] In some embodiments, the first communication device (such as a terminal) may include a main receiver and a wake-up receiver. As shown in FIG2 , the wake-up receiver may receive a wake-up signal (WUS). If the main receiver needs to be turned on, the main receiver may be instructed to be turned on. Otherwise, the main receiver may be in an off state or a power-off state. In addition, the wake-up receiver may receive other signals that carry information through signal amplitude, or the wake-up receiver may receive other signals received using envelope detection, such as the wake-up receiver may receive a target signal, a first signal, and a second signal. It should be noted that the wake-up receiver may also be referred to as a zero-power receiver or a low-power receiver, and the main receiver may also be referred to as a main transceiver, which is not limited in the embodiments of the present application.
[0100] For example, the main receiver of the first communication device (such as a terminal) is mainly used for receiving NR signals and channels. The WUS can be received by waking up the receiver to achieve the purpose of power saving. When there is no data to be received, the main receiver can be turned off and the wake-up receiver can be turned on to save power. Due to the poor coverage of the WUS signal, the UE can only save power through WUS within the coverage range of the WUS signal. When the wake-up receiver is turned on, it is necessary to detect the reception quality of the WUS signal. When the reception quality of the WUS signal cannot meet the reliable reception of the WUS signal, it is necessary to exit the WUS working (WUS on) state to avoid the first communication device (such as a terminal) always being unable to receive the WUS through the wake-up receiver and unable to wake up the main receiver, causing communication interruption.
[0101] In some embodiments, the measurement results of the first signal and the second signal are obtained by measuring a wake-up receiver of the first communication device, or the measurement results of the first signal and the second signal are obtained by measuring a main receiver of the first communication device.
[0102] Specifically, the measurement of the first signal and the second signal performed by the first communication device (such as a terminal) can be performed by a wake-up receiver or by a main receiver. For example, when there is no data to be received, the main receiver can be turned off and the wake-up receiver can be turned on to save power. Before the main receiver is turned off, it is necessary to determine whether the first communication device (such as a terminal) can reliably receive the WUS signal through the wake-up receiver, so that when the network needs to wake up the main receiver, it can be awakened by the WUS signal. For example, the first signal and the second signal are measured by the main receiver of the first communication device (such as a terminal) to determine the reception quality of the WUS signal, so as to determine whether the WUS signal can be reliably received, thereby determining whether the main receiver can be turned off and the WUS signal can be received by the wake-up receiver to save power.
[0103] In some embodiments, the first communication device may be a zero-power device, which may demodulate or receive a signal that carries information through signal amplitude, or the first communication device may demodulate or receive a signal received using envelope detection, such as the first communication device may demodulate or receive a target signal, a first signal, and a second signal. Optionally, the first communication device may obtain energy through energy harvesting for communication, information acquisition, and processing, that is, before the second communication device communicates with the first communication device, it first needs to ensure that the first communication device receives radio waves for wireless power supply and obtains wireless energy through energy harvesting. In other words, the embodiments of the present application may be applied to zero-power communication technology. Optionally, the target signal may be a power supply signal for the first communication device.
[0104] It should be understood that the present application does not limit the specific method in which the first communication device obtains energy through energy harvesting. As an example and not a limitation, the first communication device can obtain energy through wireless power supply methods such as wireless radio frequency signals, solar energy, pressure or temperature.
[0105] It should be noted that zero-power devices are a general term for devices with extremely low complexity and extremely low power consumption. Such devices do not rely on batteries, and the energy required for their operation comes from the environment, and they can have energy collection and storage capabilities. The communication of zero-power devices can support simple modulation and demodulation methods, such as Amplitude Shift Keying (ASK) / Frequency Shift Keying (FSK), etc. Specifically, zero-power devices can refer to ambient power (AMP)-enabled devices introduced by the 3rd Generation Partnership Project (3GPP) and WiFi technology, or they can be a communication module of an existing device, such as the wake-up radio (WUR) functional module introduced by WiFi technology and the wake-up receiver (Wake up receiver) of terminal devices introduced by 3GPP.
[0106] Specifically, the energy of the AMP device comes from the environment. Depending on the type of the AMP device, some AMP devices may have active transmission capabilities instead of relying solely on backscatter.
[0107] That is, in the embodiment of the present application, the first communication device may be a receiver with only extremely low complexity and power consumption, or the first communication device may be a device that communicates with the network by detecting signals of specific waveforms, such as ASK, FSK, OOK signals, etc. Such devices include, for example, zero-power devices or devices based on ambient energy, such as Ambient IoT devices. Such devices can communicate in LTE or NR systems, or in WiFi systems.
[0108] In some embodiments, the second communication device is a device for communicating with the first communication device. Optionally, the second communication device may be a network device, or the second communication device may be a terminal device, or the second communication device may be a power supply node.
[0109] In some embodiments, the second communication device may be a base station in an LTE or NR system, or an AP device in a WiFi system. And / or, the first communication device may be a terminal device with a wake-up receiver in an LTE or NR system, or a non-access point station (non-AP STA) in a WiFi system, such as a station (STA) with a wake-up radio (WUR) function.
[0110] In some embodiments, a signal that carries information through signal amplitude, or a signal received using envelope detection, having a waveform different from an OFDM-based NR signal or a WiFi signal, may be referred to as a wake-up radio (WUR) signal. Functionally, a wake-up radio (WUR) signal may include a WUS signal, a synchronization signal, a measurement signal, a reference signal, and the like. The wake-up radio (WUR) signal may be generated by an independent transmitter or by a transmitter based on multi-carrier modulation.
[0111] In some embodiments, the target signal may be a wake-up radio (WUR) signal, such as a WUS signal. Of course, the target signal may also be other signals, or some signals used to transmit data, which is not limited in the embodiments of the present application. Optionally, the WUS signal is an on-off keying (OOK) signal or a multi-carrier on-off keying (MC-OOK) signal. For example, in zero-power communication, IoT devices with extremely low power consumption and complexity, such as AMP IoT devices, receive signals mainly based on ASK modulation, such as OOK signals. The signals received by such devices are not only WUS signals for wake-up, but also signals for transmitting user data.
[0112] In some embodiments, the WUS signal, received by a WUR receiver with extremely low power consumption and complexity, uses a waveform that facilitates WUR detection, such as ASK, FSK, or OOK signals. The WUR signal can be generated using a multi-carrier modulation-based transmitter used to generate NR signals. As shown in Figure 7, the WUS signal is multiplexed within the NR signal band. The WUS signal and NR signal are mapped to different subcarriers and processed and transmitted by an OFDM transmitter.
[0113] In some embodiments, the first signal is a partial signal of the target signal. Optionally, the target signal is a wake-up signal (WUS), and the first signal is a preamble signal in the WUS signal.
[0114] It should be noted that the WUS signal is used by the network to send a wake-up signal to the terminal when needed, so that the terminal can turn on the main receiver. Therefore, the transmission of the WUS signal is on-demand, not periodic. Therefore, if the WUS signal is used as a measurement signal, the measurement results will be obtained untimely and unstable. In an embodiment of the present application, the first signal (the preamble signal in the WUS signal) and the second signal can be jointly measured, and the reception quality of the target signal can be determined based on the measurement results.
[0115] Specifically, the preamble signal in the WUS signal is used to identify the WUS signal, or the preamble signal in the WUS signal is used to synchronize the reception of the WUS signal. As shown in Figure 8, the WUS signal includes a preamble portion and a payload portion. The transmission period of the WUS signal is the duty cycle, that is, the resources corresponding to the WUS signal are periodic preset resources. In other words, the timing of sending the WUS signal and the time window for detecting the WUS signal appear periodically, which is to further save power. However, the WUS signal does not need to be sent in every cycle.
[0116] In some embodiments, the resource corresponding to the second signal is a resource corresponding to part or all of the target signal. Optionally, the resource corresponding to the target signal is a periodic preset resource.
[0117] For example, the target signal is a WUS signal, and the resources corresponding to the second signal are the resources corresponding to the preamble signal in the WUS signal, or the resources corresponding to the second signal are the resources corresponding to the payload signal in the WUS signal, or the resources corresponding to the second signal are the resources corresponding to the WUS signal.
[0118] In some embodiments, when the resource corresponding to the second signal is the resource corresponding to the first signal in the target signal, the second signal is the same as the first signal. That is, in this embodiment, to avoid resource overhead and detection complexity caused by additional measurement signals, the reception quality of the target signal can be determined by measuring a portion of the target signal.
[0119] In some embodiments, the target signal is a WUS signal, and the first signal and the second signal are both preamble signals. As shown in FIG9 , the first signal is the preamble signal in the WUS signal, and the second signal is a preamble signal sent separately from the WUS signal. Thus, a periodic measurement signal (i.e., a preamble signal) can be obtained.
[0120] In other words, in order to obtain a periodic measurement signal, in this embodiment, the transmission of the preamble signal is periodic, and the payload part in the WUS signal carries the wake-up information and is sent as needed, so it may be non-periodic. As shown in Figure 9, the time domain resources of the WUS signal are configured with a duty cycle as a period. The second communication device (such as a network device) does not send a WUS signal on the time domain resources of each WUS signal. When it is not necessary to send the wake-up information carried in the WUS signal, the preamble signal is still sent for the first communication device (such as a terminal device) to perform measurement. Specifically, in combination with the preamble signal included in the WUS signal transmission and the preamble signal sent separately, the preamble signal is a periodically transmitted signal.
[0121] In some embodiments, when the resource corresponding to the second signal is the resource corresponding to the first signal in the target signal, the second signal is a signal different from the first signal.
[0122] In some embodiments, the sequence used by the second signal is different from the sequence used by the first signal. For example, although the first signal and the second signal are both preamble signals, the sequence used by the second signal is different from the sequence used by the first signal.
[0123] Specifically, the preamble signal in the WUS signal is generally a predefined sequence used to identify the WUS signal and perform synchronization. The sequence used by the second signal (i.e., the preamble signal sent separately) can be different from the sequence used by the preamble signal in the WUS signal. In other words, when the preamble signal is sent separately, using a different sequence helps prevent the first communication device (e.g., a terminal) from receiving the WUS payload, thereby reducing power consumption of the first communication device (e.g., a terminal).
[0124] In some embodiments, the sequence used by the second signal is agreed upon by a protocol, or the sequence used by the second signal is configured by a network device.
[0125] For example, referring to the preamble signal in the WUS signal in the WiFi system, the preamble signal uses a predefined 32-bit sequence W0, and the second signal (ie, the preamble signal sent separately) uses a 32-bit sequence W1.
[0126] Wherein, W0=[1 0 1 0 0 1 0 0 1 0 1 1 1 0 1 1 0 0 0 1 0 1 1 1 0 0 1 1 1 0 0 0],W1=[0 1 0 1 1 0 1 1 0 1 0 0 0 1 0 0 1 1 1 0 1 0 0 0 1 1 0 0 0 1 1 1].
[0127] It should be noted that the above W0 and W1 are just examples, and the embodiments of the present application do not limit the length and value of the specific sequence.
[0128] In some embodiments, the second signal is a measurement signal. For example, the first signal is a preamble signal in a WUS signal, and the second signal is a measurement signal.
[0129] Specifically, the resource corresponding to the WUS signal is generally preset or network-configured, and the first communication device (e.g., a terminal) detects the WUS signal on this resource. When it is not necessary to send a WUS signal on the WUS signal resource, the second communication device (e.g., a network device) can send a measurement signal (i.e., a measurement signal) for the first communication device (e.g., a terminal) to perform the measurement.
[0130] For example, a second communication device (such as a network device) may send a measurement signal (i.e., a second signal) on a resource corresponding to a preamble signal in the WUS signal in a resource corresponding to the WUS signal. The first signal is the preamble signal in the WUS signal, and the second signal is the measurement signal. As shown in FIG10 , the measurement signal is sent on a time domain resource in which the WUS signal is not sent, wherein the measurement signal occupies a resource corresponding to the preamble signal in the WUS signal in the WUS signal resource.
[0131] For example, a second communication device (such as a network device) may send a measurement signal (i.e., a second signal) on resources corresponding to the WUS signal. The first signal is a preamble signal in the WUS signal, and the second signal is a measurement signal. As shown in FIG11 , the measurement signal is sent on time domain resources where the WUS signal is not sent, wherein the measurement signal occupies all resources corresponding to the WUS signal.
[0132] For example, a second communication device (such as a network device) may send a measurement signal (i.e., a second signal) on a resource corresponding to a payload in a WUS signal in a resource corresponding to a WUS signal. The first signal is a preamble signal in a WUS signal, and the second signal is a measurement signal. As shown in FIG12 , the measurement signal is sent on a time domain resource in which the WUS signal is not sent, wherein the measurement signal occupies a resource corresponding to the payload in the WUS signal in a WUS signal resource.
[0133] In some embodiments, the time domain resources corresponding to the second signal are at least partially different from the time domain resources corresponding to the target signal.
[0134] In some embodiments, the frequency domain resources corresponding to the second signal are the same as the frequency domain resources corresponding to the target signal.
[0135] Optionally, the second signal is a measurement signal. Specifically, for example, the frequency domain resources of the second signal (e.g., the measurement signal) are the same as the frequency domain resources of the target signal (e.g., the WUS signal), and the time domain resources of the second signal (e.g., the measurement signal) are at least partially different from the time domain resources of the target signal (e.g., the WUS signal).
[0136] In some embodiments, the resource corresponding to the second signal is a periodic resource.
[0137] In some embodiments, the resource corresponding to the second signal is a preset resource, or the resource corresponding to the second signal is configured by a network device.
[0138] In some embodiments, the duty cycle of the resource corresponding to the second signal is different from the duty cycle of the resource corresponding to the target signal.
[0139] It should be noted that the occurrence of the resource corresponding to the second signal may have a certain periodicity, and the duty cycle of the resource corresponding to the second signal represents the period of the resource corresponding to the second signal. Similarly, the occurrence of the resource corresponding to the target signal may have a certain periodicity, and the duty cycle of the resource corresponding to the target signal represents the period of the resource corresponding to the target signal.
[0140] In this embodiment, to more flexibly configure the second signal (e.g., a measurement signal), the frequency domain resources of the second signal may be the same as the frequency domain resources of the target signal (e.g., a WUS signal), but the time domain resources of the second signal may not be completely the same as the time domain resources of the target signal (e.g., a WUS signal). For example, the duty cycle of the resource corresponding to the second signal (e.g., a measurement signal) may be different from the duty cycle of the resource corresponding to the target signal (e.g., a WUS signal).
[0141] Optionally, when a certain transmission of the second signal overlaps with the target signal, the current transmission of the second signal may be abandoned.
[0142] For example, the first signal is the preamble signal in the WUS signal, and the second signal is the measurement signal. As shown in Figure 13, the duty cycle of the resource corresponding to the measurement signal is twice the duty cycle of the resource corresponding to the WUS signal, and the time domain resources of the measurement signal overlap with the time domain resources of the WUS signal. If the WUS signal is sent, the WUS preamble is used as the measurement signal. If the WUS signal is not sent, the measurement signal is sent.
[0143] For example, the first signal is the preamble signal in the WUS signal, and the second signal is the measurement signal. As shown in Figure 14, the duty cycle of the resource corresponding to the WUS signal is twice the duty cycle of the resource corresponding to the measurement signal. The time domain resources of the measurement signal partially overlap with the time domain resources of the WUS signal. On the overlapping time domain resources, if the WUS signal is sent, the WUS preamble is used as the measurement signal. If the WUS signal is not sent, the measurement signal is sent.
[0144] In some embodiments, the duty cycle of the resource corresponding to the second signal is the same as the duty cycle of the resource corresponding to the target signal.
[0145] For example, the first signal is the preamble signal in the WUS signal, and the second signal is the measurement signal. The time domain resources of the measurement signal may not overlap with the time domain resources of the WUS signal. As shown in Figure 15, the duty cycle of the resources corresponding to the WUS signal and the duty cycle of the resources corresponding to the measurement signal are equal, but the time domain resources do not overlap. In this case, the signal used for measurement may include the measurement signal and the preamble signal in the WUS signal.
[0146] Therefore, in an embodiment of the present application, the first communication device can obtain the target measurement result by measuring the first signal and the second signal. That is, by measuring the first signal and the second signal, the measurement result can be reliably obtained to ensure the measurement quality. Moreover, the first signal and the second signal have a simple structure, and the measurement is more power-saving.
[0147] The above text, in combination with Figures 6 to 15, describes in detail the method embodiment of the present application. The following text, in combination with Figures 16 to 20, describes in detail the device embodiment of the present application. It should be understood that the device embodiment and the method embodiment correspond to each other, and similar descriptions can refer to the method embodiment.
[0148] FIG16 shows a schematic block diagram of a communication device 300 according to an embodiment of the present application. The communication device 300 is a first communication device. As shown in FIG16 , the communication device 300 includes:
[0149] The processing unit 310 is configured to obtain a target measurement result by measuring the first signal and the second signal;
[0150] The first signal is a signal that carries information through signal amplitude, or the first signal is a signal received using envelope detection; and / or the second signal is a signal that carries information through signal amplitude, or the second signal is a signal received using envelope detection.
[0151] In some embodiments, the target measurement result is used to determine the reception quality of a target signal, wherein the target signal is a signal that carries information through signal amplitude, or the target signal is a signal received using envelope detection; and / or,
[0152] The target measurement result is a radio resource management RRM measurement result; and / or,
[0153] The target measurement result is a mobility measurement result; and / or,
[0154] The target measurement result is a radio link monitoring (RLM) measurement result.
[0155] In some embodiments, the first signal is a partial signal of the target signal.
[0156] In some embodiments, the resources corresponding to the second signal are resources corresponding to part or all of the target signal.
[0157] In some embodiments, the resource corresponding to the target signal is a periodic preset resource.
[0158] In some embodiments, when the resource corresponding to the second signal is the resource corresponding to the first signal in the target signal, the second signal is the same signal as the first signal.
[0159] In some embodiments, when the resource corresponding to the second signal is the resource corresponding to the first signal in the target signal, the second signal is a signal different from the first signal.
[0160] In some embodiments, the sequence used by the second signal is different from the sequence used by the first signal.
[0161] In some embodiments, the second signal is a measurement signal.
[0162] In some embodiments, the time domain resources corresponding to the second signal are at least partially different from the time domain resources corresponding to the target signal.
[0163] In some embodiments, the resource corresponding to the second signal is a periodic resource.
[0164] In some embodiments, the resource corresponding to the second signal is a preset resource, or the resource corresponding to the second signal is configured by a network device.
[0165] In some embodiments, the frequency domain resources corresponding to the second signal are the same as the frequency domain resources corresponding to the target signal.
[0166] In some embodiments, the duty cycle of the resource corresponding to the second signal is different from the duty cycle of the resource corresponding to the target signal.
[0167] In some embodiments, the duty cycle of the resource corresponding to the second signal is the same as the duty cycle of the resource corresponding to the target signal.
[0168] In some embodiments, the target signal is a wake-up signal WUS, and the first signal is a preamble signal in the WUS signal.
[0169] In some embodiments, the measurement results of the first signal and the second signal are obtained by measuring a wake-up receiver of the first communication device, or the measurement results of the first signal and the second signal are obtained by measuring a main receiver of the first communication device.
[0170] In some embodiments, the communication unit may be a communication interface or a transceiver, or an input / output interface of a communication chip or a system on chip. The processing unit may be one or more processors.
[0171] It should be understood that the communication device 300 according to the embodiment of the present application may correspond to the first communication device in the method embodiment of the present application, and the above-mentioned and other operations and / or functions of each unit in the communication device 300 are respectively for implementing the corresponding processes of the first communication device in the method 200 shown in Figure 6. For the sake of brevity, they will not be repeated here.
[0172] FIG17 shows a schematic block diagram of a communication device 400 according to an embodiment of the present application. The communication device 400 is a second communication device. As shown in FIG17 , the communication device 400 includes:
[0173] A communication unit 410 is configured to send a first signal and a second signal;
[0174] The first signal and the second signal are used by the first communication device to obtain a target measurement result;
[0175] The signal in the first signal is a signal that carries information through signal amplitude, or the signal in the first signal is a signal received using envelope detection; and / or the second signal is a signal that carries information through signal amplitude, or the second signal is a signal received using envelope detection.
[0176] In some embodiments, the target measurement result is used to determine the reception quality of a target signal, wherein the target signal is a signal that carries information through signal amplitude, or the target signal is a signal received using envelope detection; and / or,
[0177] The target measurement result is a radio resource management RRM measurement result; and / or,
[0178] The target measurement result is a mobility measurement result; and / or,
[0179] The target measurement result is a radio link monitoring (RLM) measurement result.
[0180] In some embodiments, the first signal is a partial signal of the target signal.
[0181] In some embodiments, the resources corresponding to the second signal are resources corresponding to part or all of the target signal.
[0182] In some embodiments, the resource corresponding to the target signal is a periodic preset resource.
[0183] In some embodiments, when the resource corresponding to the second signal is the resource corresponding to the first signal in the target signal, the second signal is the same signal as the first signal.
[0184] In some embodiments, when the resource corresponding to the second signal is the resource corresponding to the first signal in the target signal, the second signal is a signal different from the first signal.
[0185] In some embodiments, the sequence used by the second signal is different from the sequence used by the first signal.
[0186] In some embodiments, the second signal is a measurement signal.
[0187] In some embodiments, the time domain resources corresponding to the second signal are at least partially different from the time domain resources corresponding to the target signal.
[0188] In some embodiments, the resource corresponding to the second signal is a periodic resource.
[0189] In some embodiments, the resource corresponding to the second signal is a preset resource, or the resource corresponding to the second signal is configured by a network device.
[0190] In some embodiments, the frequency domain resources corresponding to the second signal are the same as the frequency domain resources corresponding to the target signal.
[0191] In some embodiments, the duty cycle of the resource corresponding to the second signal is different from the duty cycle of the resource corresponding to the target signal.
[0192] In some embodiments, the duty cycle of the resource corresponding to the second signal is the same as the duty cycle of the resource corresponding to the target signal.
[0193] In some embodiments, the target signal is a wake-up signal WUS, and the first signal is a preamble signal in the WUS signal.
[0194] In some embodiments, the measurement results of the first signal and the second signal are obtained by measuring a wake-up receiver of the first communication device, or the measurement results of the first signal and the second signal are obtained by measuring a main receiver of the first communication device.
[0195] In some embodiments, the communication unit may be a communication interface or a transceiver, or an input / output interface of a communication chip or a system on chip. The processing unit may be one or more processors.
[0196] It should be understood that the communication device 400 according to the embodiment of the present application may correspond to the second communication device in the method embodiment of the present application, and the above-mentioned and other operations and / or functions of each unit in the communication device 400 are respectively for implementing the corresponding processes of the second communication device in the method 200 shown in Figure 6. For the sake of brevity, they will not be repeated here.
[0197] Figure 18 is a schematic structural diagram of a communication device 500 provided in an embodiment of the present application. The communication device 500 shown in Figure 18 includes a processor 510, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.
[0198] In some embodiments, as shown in FIG18 , the communication device 500 may further include a memory 520. The processor 510 may call and execute a computer program from the memory 520 to implement the method in the embodiment of the present application.
[0199] The memory 520 may be a separate device independent of the processor 510 , or may be integrated into the processor 510 .
[0200] In some embodiments, as shown in FIG18 , the communication device 500 may further include a transceiver 530 , and the processor 510 may control the transceiver 530 to communicate with other devices. Specifically, the transceiver 530 may send information or data to other devices, or receive information or data sent by other devices.
[0201] The transceiver 530 may include a transmitter and a receiver. The transceiver 530 may further include an antenna, and the number of antennas may be one or more.
[0202] In some embodiments, the processor 510 may implement the functionality of a processing unit in the first communication device, or the processor 510 may implement the functionality of a processing unit in the second communication device, which will not be described in detail here for the sake of brevity.
[0203] In some embodiments, the transceiver 530 may implement the function of the communication unit in the first communication device, which will not be described in detail here for the sake of brevity.
[0204] In some embodiments, the transceiver 530 may implement the function of a communication unit in the second communication device, which will not be described in detail here for the sake of brevity.
[0205] In some embodiments, the communication device 500 may specifically be the first communication device of the embodiment of the present application, and the communication device 500 may implement the corresponding processes implemented by the first communication device in each method of the embodiment of the present application. For the sake of brevity, they will not be repeated here.
[0206] In some embodiments, the communication device 500 may specifically be the second communication device of the embodiment of the present application, and the communication device 500 may implement the corresponding processes implemented by the second communication device in each method of the embodiment of the present application. For the sake of brevity, they will not be repeated here.
[0207] Figure 19 is a schematic structural diagram of an apparatus according to an embodiment of the present application. The apparatus 600 shown in Figure 19 includes a processor 610, which can call and execute a computer program from a memory to implement the method according to the embodiment of the present application.
[0208] In some embodiments, as shown in FIG19 , the apparatus 600 may further include a memory 620. The processor 610 may call and execute a computer program from the memory 620 to implement the method in the embodiment of the present application.
[0209] The memory 620 may be a separate device independent of the processor 610 , or may be integrated into the processor 610 .
[0210] In some embodiments, the apparatus 600 may further include an input interface 630. The processor 610 may control the input interface 630 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips. Optionally, the processor 610 may be located inside or outside the chip.
[0211] In some embodiments, the processor 610 may implement the functionality of a processing unit in the second communication device, or the processor 610 may implement the functionality of a processing unit in the first communication device, which will not be described in detail here for the sake of brevity.
[0212] In some embodiments, the input interface 630 may implement the functionality of a communication unit in the second communication device, or the input interface 630 may implement the functionality of a communication unit in the first communication device.
[0213] In some embodiments, the apparatus 600 may further include an output interface 640. The processor 610 may control the output interface 640 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips. Optionally, the processor 610 may be located inside or outside the chip.
[0214] In some embodiments, the output interface 640 may implement the functionality of a communication unit in the second communication device, or the output interface 640 may implement the functionality of a communication unit in the first communication device.
[0215] In some embodiments, the apparatus may be applied to the first communication device in the embodiments of the present application, and the apparatus may implement the corresponding processes implemented by the first communication device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be described here.
[0216] In some embodiments, the apparatus can be applied to the second communication device in the embodiments of the present application, and the apparatus can implement the corresponding processes implemented by the second communication device in each method of the embodiments of the present application. For the sake of brevity, they will not be repeated here.
[0217] In some embodiments, the device mentioned in the embodiments of the present application may also be a chip, such as a system-on-chip, a system-on-chip, a chip system, or a system-on-chip chip.
[0218] FIG20 is a schematic block diagram of a communication system 700 provided in an embodiment of the present application. As shown in FIG20 , the communication system 700 includes a second communication device 710 and a first communication device 720 .
[0219] Among them, the second communication device 710 can be used to implement the corresponding functions implemented by the second communication device in the above method, and the first communication device 720 can be used to implement the corresponding functions implemented by the first communication device in the above method. For the sake of brevity, they are not repeated here.
[0220] It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiment can be completed by hardware integrated logic circuits in the processor or software instructions. The above processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The various methods, steps, and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium mature in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
[0221] It is understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.
[0222] It should be understood that the above-mentioned memories are exemplary but not restrictive. For example, the memories in the embodiments of the present application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM RAM (DR RAM), etc. In other words, the memories in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.
[0223] An embodiment of the present application also provides a computer-readable storage medium for storing a computer program.
[0224] In some embodiments, the computer-readable storage medium can be applied to the first communication device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the first communication device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.
[0225] In some embodiments, the computer-readable storage medium can be applied to the second communication device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the second communication device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.
[0226] An embodiment of the present application also provides a computer program product, including computer program instructions.
[0227] In some embodiments, the computer program product can be applied to the first communication device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the first communication device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.
[0228] In some embodiments, the computer program product can be applied to the second communication device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the second communication device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.
[0229] The embodiment of the present application also provides a computer program.
[0230] In some embodiments, the computer program can be applied to the first communication device in the embodiments of the present application. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the first communication device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.
[0231] In some embodiments, the computer program can be applied to the second communication device in the embodiments of the present application. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the second communication device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.
[0232] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.
[0233] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.
[0234] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.
[0235] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.
[0236] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
[0237] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. In view of this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.
[0238] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.
Claims
1. A wireless communication method, characterized in that: include: The first communication device obtains a target measurement result by measuring the first signal and the second signal; The first signal is a signal that carries information through signal amplitude, or the first signal is a signal received using envelope detection; And / or, the second signal is a signal that carries information through signal amplitude, or the second signal is a signal received using envelope detection.
2. The method according to claim 1, characterized in that The target measurement result is used to determine the reception quality of a target signal, wherein the target signal is a signal that carries information through signal amplitude, or the target signal is a signal received using envelope detection; and / or, The target measurement result is a radio resource management RRM measurement result; and / or, The target measurement result is a mobility measurement result; and / or, The target measurement result is a radio link monitoring (RLM) measurement result.
3. The method according to claim 2, characterized in that The first signal is a partial signal of the target signal.
4. The method according to claim 3, characterized in that The resources corresponding to the second signal are resources corresponding to part or all of the target signal.
5. The method according to claim 4, characterized in that The resource corresponding to the target signal is a periodic preset resource.
6. The method according to claim 4 or 5, characterized in that In a case where the resource corresponding to the second signal is the resource corresponding to the first signal in the target signal, the second signal is the same signal as the first signal.
7. The method according to claim 4 or 5, characterized in that In a case where the resource corresponding to the second signal is the resource corresponding to the first signal in the target signal, the second signal is a signal different from the first signal.
8. The method according to claim 7, characterized in that The sequence used by the second signal is different from the sequence used by the first signal.
9. The method according to claim 4, 5 or 7, characterized in that The second signal is a measurement signal.
10. The method according to claim 3, characterized in that The time domain resources corresponding to the second signal are at least partially different from the time domain resources corresponding to the target signal.
11. The method according to claim 10, characterized in that The resource corresponding to the second signal is a periodic resource.
12. The method according to claim 10 or 11, characterized in that The resource corresponding to the second signal is a preset resource, or the resource corresponding to the second signal is configured by a network device.
13. The method according to any one of claims 10 to 12, characterized in that The frequency domain resources corresponding to the second signal are the same as the frequency domain resources corresponding to the target signal.
14. The method according to any one of claims 10 to 13, characterized in that The duty cycle of the resource corresponding to the second signal is different from the duty cycle of the resource corresponding to the target signal.
15. The method according to any one of claims 10 to 13, characterized in that The duty cycle of the resource corresponding to the second signal is the same as the duty cycle of the resource corresponding to the target signal.
16. The method according to any one of claims 2 to 15, characterized in that The target signal is a wake-up signal WUS, and the first signal is a preamble signal in the WUS signal.
17. The method according to any one of claims 1 to 16, characterized in that The measurement results of the first signal and the second signal are obtained by measuring a wake-up receiver of the first communication device, or the measurement results of the first signal and the second signal are obtained by measuring a main receiver of the first communication device.
18. A wireless communication method, characterized in that: include: The second communication device sends a first signal and a second signal; The first signal and the second signal are used by the first communication device to obtain a target measurement result; The signal in the first signal is a signal that carries information through signal amplitude, or the signal in the first signal is a signal received using envelope detection; and / or the second signal is a signal that carries information through signal amplitude, or the second signal is a signal received using envelope detection.
19. The method according to claim 18, characterized in that The target measurement result is used to determine the reception quality of a target signal, wherein the target signal is a signal that carries information through signal amplitude, or the target signal is a signal received using envelope detection; and / or, The target measurement result is a radio resource management RRM measurement result; and / or, The target measurement result is a mobility measurement result; and / or, The target measurement result is a radio link monitoring (RLM) measurement result.
20. The method according to claim 19, wherein The first signal is a partial signal of the target signal.
21. The method according to claim 20, characterized in that The resources corresponding to the second signal are resources corresponding to part or all of the target signal.
22. The method according to claim 21, characterized in that The resource corresponding to the target signal is a periodic preset resource.
23. The method according to claim 21 or 22, characterized in that In a case where the resource corresponding to the second signal is the resource corresponding to the first signal in the target signal, the second signal is the same signal as the first signal.
24. The method according to claim 21 or 22, characterized in that In a case where the resource corresponding to the second signal is the resource corresponding to the first signal in the target signal, the second signal is a signal different from the first signal.
25. The method according to claim 24, characterized in that The sequence used by the second signal is different from the sequence used by the first signal.
26. The method according to claim 21, 22 or 24, characterized in that The second signal is a measurement signal.
27. The method according to claim 20, characterized in that The time domain resources corresponding to the second signal are at least partially different from the time domain resources corresponding to the target signal.
28. The method according to claim 27, characterized in that The resource corresponding to the second signal is a periodic resource.
29. The method according to claim 27 or 28, characterized in that The resource corresponding to the second signal is a preset resource, or the resource corresponding to the second signal is configured by a network device.
30. The method according to any one of claims 27 to 29, wherein: The frequency domain resources corresponding to the second signal are the same as the frequency domain resources corresponding to the target signal.
31. The method according to any one of claims 27 to 30, characterized in that The duty cycle of the resource corresponding to the second signal is different from the duty cycle of the resource corresponding to the target signal.
32. The method according to any one of claims 27 to 30, characterized in that The duty cycle of the resource corresponding to the second signal is the same as the duty cycle of the resource corresponding to the target signal.
33. The method according to any one of claims 19 to 32, wherein: The target signal is a wake-up signal WUS, and the first signal is a preamble signal in the WUS signal.
34. The method according to any one of claims 19 to 33, wherein: The measurement results of the first signal and the second signal are obtained by measuring a wake-up receiver of the first communication device, or the measurement results of the first signal and the second signal are obtained by measuring a main receiver of the first communication device.
35. A communication device, characterized in that: The communication device is a first communication device, and the communication device includes: a processing unit, configured to obtain a target measurement result by measuring the first signal and the second signal; The first signal is a signal that carries information through signal amplitude, or the first signal is a signal received using envelope detection; and / or the second signal is a signal that carries information through signal amplitude, or the second signal is a signal received using envelope detection.
36. A communication device, characterized in that: The communication device is a second communication device, and the communication device includes: a communication unit, configured to send a first signal and a second signal; The first signal and the second signal are used by the first communication device to obtain a target measurement result; The signal in the first signal is a signal that carries information through signal amplitude, or the signal in the first signal is a signal received using envelope detection; and / or the second signal is a signal that carries information through signal amplitude, or the second signal is a signal received using envelope detection.
37. A communication device, characterized in that: include: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory, so that the communication device executes the method according to any one of claims 1 to 17.
38. A communication device, characterized in that: include: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory, so that the communication device executes the method according to any one of claims 18 to 34.
39. A chip, characterized in that: include: A processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes the method according to any one of claims 1 to 17.
40. A chip, characterized in that: include: A processor, configured to call and execute a computer program from a memory, so that a device equipped with the chip executes the method according to any one of claims 18 to 34.
41. A computer-readable storage medium, characterized in that For storing a computer program, when the computer program is executed, the method according to any one of claims 1 to 17 is implemented.
42. A computer-readable storage medium, characterized in that For storing a computer program, when said computer program is executed, the method according to any one of claims 18 to 34 is implemented.
43. A computer program product, characterized in that The method comprises computer program instructions, which, when executed, implement the method according to any one of claims 1 to 17.
44. A computer program product, characterized in that The method comprises computer program instructions which, when executed, implement the method according to any one of claims 18 to 34.
45. A computer program, characterized in that When the computer program is executed, the method according to any one of claims 1 to 17 is implemented.
46. A computer program, characterized in that When the computer program is executed, the method according to any one of claims 18 to 34 is implemented.