Wireless communication method and device, equipment and storage medium

Abstract

The invention discloses a wireless communication method and device, equipment and a storage medium, and relates to the field of communication. The method is executed by a first node, and comprises the following steps: the first node sends a group of signals, and the group of signals comprises at least one first signal and at least one second signal; wherein the first signal is sent according to configuration information, and the second signal is modulated and sent through a first channel according to the configuration information. Compared with a feedback mode that quantized channel information is loaded on signaling to be sent in the related technology, the channel modulation signal mode in the invention occupies fewer sending resources without damaging the channel information needing to be fed back, reduces the resource overhead required for feeding back the channel information, reduces the feedback cost of the channel information, and improves the feedback efficiency of the channel information. And the feedback efficiency of the channel information is improved.

Description

Wireless communication method, device, equipment and storage medium Technical Field

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

[0002] In wireless communication scenarios, when accurate channel information is needed, the method of quantizing the channel information and then sending signaling containing the quantized channel information as feedback is often used. This method not only consumes a lot of resources but also causes some damage to the channel information, impacting communication costs and efficiency.

[0003] Therefore, there is an urgent need for a solution that can both ensure channel information integrity and reduce resource overhead.

[0004] Summary of the Invention

[0005] The embodiments of the present application provide a wireless communication method, apparatus, device, and storage medium that can provide relatively complete and accurate channel information feedback using fewer channel resources. The technical solution is as follows:

[0006] According to one aspect of the present application, a wireless communication method is provided, where the method is performed by a first node and includes:

[0007] The first node sends a group of signals, the group of signals including at least one first signal and at least one second signal;

[0008] The first signal is sent according to the configuration information, and the second signal is sent by modulating the channel information of the first channel.

[0009] According to one aspect of the present application, a wireless communication method is provided, where the method is performed by a second node and includes:

[0010] receiving a group of signals sent by a first node, the group of signals including at least one first signal and at least one second signal;

[0011] The first signal is sent by the first node according to configuration information, and the second signal is sent by the first node by modulating the channel information of the first channel.

[0012] According to one aspect of the present application, a wireless communication device is provided, the device comprising:

[0013] A first sending module, configured to send a group of signals, where the group of signals includes at least one first signal and at least one second signal;

[0014] The first signal is sent according to the configuration information, and the second signal is sent by modulating the channel information of the first channel.

[0015] According to one aspect of the present application, a wireless communication device is provided, the device comprising:

[0016] A second receiving module, configured to receive a group of signals sent by the first node, where the group of signals includes at least one first signal and at least one second signal;

[0017] The first signal is sent by the first node according to configuration information, and the second signal is sent by the first node by modulating the channel information of the first channel.

[0018] According to one aspect of the present application, a communication device is provided, which terminal includes: a processor; a transceiver connected to the processor; and a memory for storing an executable program of the processor; wherein the processor is configured to load and execute the executable program to implement the wireless communication method as described in the above aspect.

[0019] According to one aspect of the present application, a communication device is provided, wherein the network device includes: a processor; a transceiver connected to the processor; and a memory for storing an executable program of the processor; wherein the processor is configured to load and execute the executable program to implement the wireless communication method as described in the above aspect.

[0020] According to one aspect of the present application, a computer-readable storage medium is provided, in which an executable program is stored. The executable program is loaded and executed by a processor of a communication device to implement the wireless communication method as described in the above aspect.

[0021] According to one aspect of the present application, a computer program product is provided, which includes a computer program, wherein the computer program is stored in a computer-readable storage medium, a processor of a communication device reads the computer program from the computer-readable storage medium, and the processor executes the computer program, so that the communication device performs the wireless communication method described in the above aspect.

[0022] According to one aspect of the present application, a chip is provided, which includes a programmable logic circuit and / or a program, and when the chip is running, it is used to implement the wireless communication method as described in the above aspects.

[0023] The technical solutions provided by the embodiments of the present application include at least the following beneficial effects:

[0024] Compared with the feedback method in the related art in which the quantized channel information is carried on the signaling, the present application feeds back the channel information of the first channel by means of a channel modulation signal, and modulates the channel information of the first channel on the second signal, which can achieve lossless channel information feedback and improve the feedback accuracy and efficiency of the channel information. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0026] FIG1 shows a schematic diagram of a scene of a perception mode in the related art;

[0027] FIG2 shows a schematic diagram of a wireless communication scenario provided by an exemplary embodiment of the present application;

[0028] FIG3 shows a schematic diagram of a wireless communication scenario provided by an exemplary embodiment of the present application;

[0029] FIG4 shows a schematic diagram of a wireless communication scenario provided by an exemplary embodiment of the present application;

[0030] FIG5 shows a schematic diagram of a wireless communication scenario provided by an exemplary embodiment of the present application;

[0031] FIG6 shows a schematic flow chart of a wireless communication method provided by an exemplary embodiment of the present application;

[0032] FIG7 shows a schematic flow chart of a wireless communication method provided by an exemplary embodiment of the present application;

[0033] FIG8 shows a schematic flow chart of a wireless communication method provided by an exemplary embodiment of the present application;

[0034] FIG9 is a schematic diagram showing a flow chart of a wireless communication method provided by an exemplary embodiment of the present application;

[0035] FIG10 is a schematic diagram showing a flow chart of a wireless communication method provided by an exemplary embodiment of the present application;

[0036] FIG11 shows a schematic diagram of a wireless communication scenario provided by an exemplary embodiment of the present application;

[0037] FIG12 shows a structural block diagram of a wireless communication device provided by an exemplary embodiment of the present application;

[0038] FIG13 shows a structural block diagram of a wireless communication device provided by an exemplary embodiment of the present application;

[0039] FIG14 shows a schematic structural diagram of a communication device provided in an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0040] To make the objectives, technical solutions, and advantages of the present application more clear, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings. Exemplary embodiments will be described in detail herein, with examples shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are merely examples of devices and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0041] In this document, "plurality" refers to two or more. "And / or" describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. The character " / " generally indicates an "or" relationship between the associated objects.

[0042] The terms used in this application are for the purpose of describing particular embodiments only and are not intended to limit this application. As used in this application and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0043] It should be understood that although the terms first, second, third, etc. may be used in this application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0044] Next-generation networks, such as the sixth-generation (6G) mobile communication network, are expected to be a fusion of mobile communication networks, sensing networks, and computing networks. In a narrow sense, the sensing network refers to a system capable of target positioning (ranging, speed, and angle measurement), target imaging, target detection, target tracking, and target recognition. In a broader sense, it refers to a system that understands the attributes and status of all services, networks, users, terminals, and environmental objects.

[0045] From the perspective of perception applications, perception can be classified into the following categories:

[0046] Outdoor / wide-area / local-area applications: including smart cities (e.g., weather monitoring), smart transportation / high-speed rail (e.g., high-precision map construction, road supervision, intrusion detection), and low-altitude applications (e.g., drone monitoring and obstacle avoidance, flight intrusion detection, flight path management).

[0047] Indoor / local applications: including smart home and health management (such as respiratory monitoring, intrusion detection, gesture / posture recognition, motion monitoring, and mobile trajectory tracking), smart factories (such as intrusion detection, material detection, and object defect detection), etc.

[0048] The above are just some exemplary classifications of perception applications, and the application scope of perception is not limited to the above examples.

[0049] Wireless communication and perception are two key applications of modern radio frequency technology. Perception uses radio waves to detect parameters of the physical environment, enabling environmental perception such as target location, motion recognition, and imaging. Traditionally, perception and wireless communication exist independently, and this separate design wastes wireless spectrum and hardware resources. With the advent of the Beyond Fifth Generation (B5G) and 6G eras, the communication spectrum is shifting towards millimeter-wave, terahertz, and visible light communications. The spectrum for future wireless communications will overlap with the spectrum for traditional perception. Integrated communication and perception technology merges wireless communication and perception, leveraging wireless resources for perception; enabling sensing services over a wider range using widely deployed cellular networks; achieving higher perception accuracy through joint perception using base stations and multiple terminals; and reusing wireless communication hardware modules for perception, reducing costs. In short, integrated communication and perception technology empowers future wireless communication systems with perception capabilities, providing a foundation for the development of smart transportation, smart cities, smart factories, drones, and other services.

[0050] A sensing mode in related technologies is shown in FIG1 , in which a sensing transmitter (STx) 110 (such as a base station) sends a sensing signal to a sensing receiver (SRx) 130 (such as a terminal), and the sensing signal is used to instruct or request the sensing receiver 130 to feedback sensing information. Based on the received sensing signal, the sensing receiver 130 feeds back the sensing information to the sensing transmitter 110. The sensing transmitter 110 can be a sensing control node or a sensing demand node. However, in order to extract more sensing environment information, it is necessary to feed back complete channel information, such as the channel amplitude and phase of each subcarrier; and the quantization accuracy requirement is also relatively high. In such a sensing mode, on the one hand, when the quantization accuracy is insufficient, only lossy compressed channel information can be fed back. On the other hand, the higher the quantization accuracy, the more information bits the quantized channel information occupies, and the feedback overhead of the channel information will be very large.

[0051] In view of the above problems, the embodiments of the present application improve the feedback of channel information, thereby reducing the resource overhead of channel information feedback while providing lossless feedback of channel information. The technical solutions provided in 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, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD) system, Advanced Long Term Evolution (LTE-A) system, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, fifth generation (5G) mobile communication system, New Radio (NR) system, NR system evolution system, LTE on unlicensed spectrum (LTE-based access to unlicensed spectrum). spectrum, LTE-U) system, NR (NR-based access to unlicensed spectrum, NR-U) system on unlicensed spectrum, non-terrestrial communication network (NTN) system, wireless local area network (WLAN), wireless fidelity (Wi-Fi), cellular Internet of Things system, cellular passive Internet of Things system, and may also be applicable to subsequent evolution systems of 5G NR system, and may also be applicable to 6G and subsequent evolution systems. In some embodiments of the present application, "NR" may also be referred to as 5G NR system or 5G system.Among them, the 5G mobile communication system may include non-standalone networking (NSA) and / or standalone networking (SA).

[0052] The technical solutions provided in the embodiments of the present application can also be applied to machine type communication (MTC), long term evolution technology for machine-to-machine communication (LTE-M), device-to-device (D2D) network, machine-to-machine (M2M) network, Internet of Things (IoT) network or other networks. Among them, the IoT network can include, for example, the Internet of Vehicles. Among them, the communication mode in the Internet of Vehicles system is collectively referred to as vehicle to other devices (Vehicle to X, V2X, X can represent anything), for example, the V2X can include: vehicle to vehicle (V2V) communication, vehicle to infrastructure (V2I) communication, vehicle to pedestrian communication (V2P) or vehicle to network (V2N) communication, etc.

[0053] Figures 2 to 5 exemplarily illustrate several wireless communication scenarios that may be used in the embodiments of the present application, but do not mean to limit the application scenarios of the embodiments of the present application.

[0054] As shown in FIG2 , the wireless communication scenario includes a first node 10 and a second node 20 , the first channel is a channel from the second node 20 to the first node 10 , and the second channel is a channel from the first node 10 to the second node 20 .

[0055] As shown in FIG3 , the wireless communication scenario includes a first node 10 , a second node 20 and a third node 30 . The first channel is a channel from the third node 30 to the first node 10 , and the second channel is a channel from the first node 10 to the second node 20 .

[0056] As shown in FIG4 , the wireless communication scenario includes a first node 10 , a second node 20 and a third node 30 . The first channel is a channel from the second node 20 to the third node 30 , and the second channel is a channel from the first node 10 to the second node 20 .

[0057] As shown in Figure 5, the wireless communication scenario includes a first node 10, a second node 20, a third node 30 and a fourth node 40. The first channel is the channel from the fourth node 40 to the third node 30, and the second channel is the channel from the first node 10 to the second node 20.

[0058] In summary, the first channel can be any channel for which the second node 20 desires to obtain channel information. This application does not limit the first channel, as long as it is a channel for which the first node 10 can obtain or measure channel information. In some embodiments of this application, the first channel and the channel information of the first channel are equivalent concepts.

[0059] In some embodiments, the first node or the second node is a network device. The network device includes, but is not limited to, an evolved Node B (eNB), a radio network controller (RNC), a node B (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (e.g., a home evolved Node B, or a home node B, HNB), a baseband unit (BBU), an access point (AP) in a wireless fidelity (Wi-Fi) system, a wireless relay node, a wireless backhaul node, a transmission point (TP) or a transmission and reception point (TRP), etc. It may also be a next generation node B (gNB) or a transmission point (TRP or TP) in a 5G system, or one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system, or a network node constituting a gNB or a transmission point, such as a baseband unit (BBU) or a distributed unit (DPU). Unit, DU), etc., or base stations in 6G communication systems, etc.

[0060] In some embodiments, the first node or the second node is a terminal, also known 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, user device. The terminals include, but are not limited to, handheld devices, wearable devices, vehicle-mounted devices, and Internet of Things devices, such as mobile phones, tablet computers, e-book readers, laptop computers, desktop computers, televisions, game consoles, mobile Internet devices (MIDs), augmented reality (AR) terminals, virtual reality (VR) terminals, and mixed reality (MR) terminals, wearable devices, handles, electronic tags, controllers, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical care, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, wireless terminals in remote medical surgery, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loops (WLANs), and wireless terminals in industrial control. Loop (WLL) stations, personal digital assistants (PDA), TV set-top boxes (STB), customer premises equipment (CPE), etc.

[0061] FIG6 shows a flow chart of a wireless communication method provided by an exemplary embodiment of the present application. The method in this embodiment is executed by a first node, and the method includes at least some of the following steps:

[0062] Step 220: Send a group of signals, where the group of signals includes at least one first signal and at least one second signal.

[0063] The set of signals may be periodic, non-periodic, or semi-persistent.

[0064] In some embodiments, the set of signals is a set of reference signals, wherein the first signal is a first reference signal and the second signal is a second reference signal.

[0065] In some embodiments, the group of signals is a group of perception signals, wherein the first signal is a first perception signal and the second signal is a second perception signal.

[0066] In some embodiments, the type of the first signal and / or the type of the second signal may be the same or different, and the types include at least one of a channel state information reference signal (CSI-RS), a demodulation reference signal (DMRS), a phase tracking reference signal (PT-RS), a sounding reference signal (SRS), a synchronization signal block (SSB), a sensing signal, etc.

[0067] The first signal is sent by the first node according to the configuration information, and the second signal is sent by the first node via modulation of the first channel. That is, the first signal is not modulated by the channel information of the first channel, while the second signal is modulated by the channel information of the first channel. Both the first signal and the second signal are sent according to the configuration information. If the configuration information includes the configuration of the first signal and the configuration of the second signal, the first signal is sent according to the configuration of the first signal, and the second signal is sent according to the configuration of the second signal. Furthermore, the second signal is additionally modulated by the channel information of the first channel before being sent.

[0068] The first node sends a group of signals to the second node. Optionally, the first channel is a channel from the second node to the first node; or, the first channel is a channel from another node to the first node, such as a channel from the third node to the first node; or, the first channel is a channel from the second node to another node, such as a channel from the second node to the third node; or, the first channel is a channel from the fourth node to the third node.

[0069] The second channel is a channel from the first node to the second node. The first signal is sent on the second channel according to the configuration information without being modulated by the channel information of the first channel. The second signal is sent on the second channel after being modulated according to the configuration information and by the channel information of the first channel. Therefore, the first signal sent on the second channel carries the channel information of the second channel, and the second signal sent on the second channel carries both the channel information of the first channel and the channel information of the second channel.

[0070] In some embodiments, in the configuration information, the configuration of the first signal and the configuration of the second signal are the same or different. In some specific embodiments, the time domain information of the first signal is different from the time domain information of the second signal, while the other configurations are the same; or the frequency domain information of the first signal is different from the frequency domain information of the second signal, while the other configurations are the same; or the code domain information of the first signal is different from the code domain information of the second signal, while the other configurations are the same; or the spatial information of the first signal is the same as the spatial information of the second signal, while the other configurations are different; or the time domain information, frequency domain information, code domain information, and spatial information of the first signal are all different from the time domain information, frequency domain information, code domain information, and spatial information of the second signal.

[0071] In some embodiments, the first signal and the second signal are sent simultaneously, or within a first time interval. Optionally, the first time interval is predefined by a standard protocol, configured by a network device, determined autonomously by the first node, or configured by the second node to the first node.

[0072] Spatial information can be understood as meanings such as airspace information, spatial relationships, and beam information. Spatial information can be indicated using a Transmission Configuration Indication (TCI). The Quasi Co-Location (QCL) information carried in the TCI indicates the beam information corresponding to the signal.

[0073] In some embodiments, the channel information may be considered as channel-state information (CSI), such as CSI measured but not quantized by the first node.

[0074] In some embodiments, the channel information of the first channel includes at least one of amplitude, phase, Doppler shift, and multipath delay. Doppler shift refers to the change in phase and frequency caused by propagation distance differences when a node moves in a certain direction at a constant rate. Multipath delay refers to the interference delay effect caused by multipath transmission in an electromagnetic wave propagation channel.

[0075] For example, the channel information of the first channel is the channel state information of the first channel, including information about amplitude, phase, Doppler shift, and multipath delay. Taking amplitude and / or phase as an example, the second signal is modulated by the amplitude of the first channel; or, the second signal is modulated by the phase of the first channel; or, the second signal is modulated by both amplitude and phase of the first channel.

[0076] In some embodiments, the configuration information is autonomously configured by a first node, and the configuration information is used to configure the resources of the group of signals, such as when the first node is a base station. In some embodiments, the first node receives the configuration information, and the configuration information is used to configure the resources of the group of signals. In some embodiments, the configuration information comes from a second node or other nodes, where the second node can be a network device or a terminal, and the other nodes can be routers, power supply devices, peer devices, network devices, etc.

[0077] In some embodiments, the configuration information includes at least one of the following:

[0078] Configuration of the first signal;

[0079] Configuration of the second signal.

[0080] In some embodiments, configuring includes at least one of the following:

[0081] Sequence information, such as sequence identification (Identity, ID), etc.

[0082] Port information, such as at least one of the port number and port index;

[0083] Time domain resources, such as at least one of a period, a time slot offset, a start symbol of the time domain, a number of symbols in the time domain, and a number of repetitions;

[0084] Frequency domain resources, such as at least one of a comb parameter, a comb index (offset), a cyclic shift, a starting resource such as a resource block (RB), bandwidth, and frequency hopping parameters;

[0085] Code domain resources, such as orthogonal codes. For example, a first signal is encoded using a first orthogonal code, and a second signal is encoded using a second orthogonal code, where the first and second orthogonal codes are mutually orthogonal.

[0086] Power information, such as at least one of a power compensation coefficient, target power, path loss reference signal, and closed-loop power control mode;

[0087] Spatial information, such as at least one of beam information, carrier ID, associated signal type, and associated signal index. The associated signal refers to a signal associated with the first signal and / or the second signal. For example, when the first signal and / or the second signal is an SRS signal, it can be associated with signals such as an SSB and a channel state reference signal (CS-RS). The association here means that the SRS and SSB are transmitted using the same beam or the same beam pair. The same beam pair includes a transmit beam and a receive beam.

[0088] In the embodiment of the present application, the configuration of the first signal and the second signal includes at least two types: repeated configuration and independent configuration.

[0089] In some embodiments, the group of signals is a group of repeated signals, and the first signal and the second signal are two signals in the group of repeated signals, that is, the configuration of the first signal and the configuration of the second signal in the configuration information are the same.

[0090] In some embodiments, the configuration of the first signal and the configuration of the second signal are independently configured, that is, the configuration of the first signal and the configuration of the second signal in the configuration information are partially different or completely different.

[0091] In some embodiments, the configuration of the first signal and / or the second signal may be explicitly indicated or implicitly indicated. For example, when the first signal and the second signal form a set of repeated signals, an explicit configuration is used; when the first signal and the second signal are independently configured, an implicit configuration is used.

[0092] In some embodiments, the configuration information is used to indicate at least one of the following:

[0093] The sequence information of the first signal and the sequence information of the second signal are the same;

[0094] The sequence information of the first signal is different from the sequence information of the second signal;

[0095] The port information of the first signal is the same as the port information of the second signal;

[0096] The port information of the first signal is different from the port information of the second signal;

[0097] The frequency domain resources of the first signal and the frequency domain resources of the second signal are the same;

[0098] The spatial information of the first signal and the spatial information of the second signal are the same;

[0099] The power information of the first signal and the power information of the second signal are the same;

[0100] The interval between the time domain resource of the first signal and the time domain resource of the second signal is less than a first threshold;

[0101] The time domain resources of the first signal and the time domain resources of the second signal are the same, and the code domain resources of the first signal and the code domain resources of the second signal are different.

[0102] In some specific embodiments, the frequency domain resources of the first signal and the frequency domain resources of the second signal are the same, for example, the physical resource blocks, or the transmission bandwidth, and the starting physical resource block of the first signal and the second signal are the same. For another example, the physical resource blocks, or the transmission bandwidth, and the starting physical resource block, as well as the subcarrier numbers within a physical resource block of the first signal and the second signal are the same.

[0103] In some specific embodiments, the beam information of the first signal is the same as the beam information of the second signal, for example, the transmission configuration indicator (TCI) index of the first signal and the second signal is the same; for example, the associated signal type and index of the first signal and the second signal are the same.

[0104] In some specific embodiments, the time domain resource interval between the first signal and the second signal is relatively small. For example, the first signal and the second signal are in adjacent symbols of the same time slot. In another example, the first signal and the second signal are in the same time slot. In another example, the interval between the first signal and the second signal is less than m symbols, where m symbols is determined by the network device, which may determine this based on the UE's mobility to ensure that the interval between the first signal and the second signal is no greater than the correlation time.

[0105] In some specific embodiments, the first signal and the second signal have the same time domain resources, frequency domain resources, power information, and beam information, and the first signal and the second signal use orthogonal codes, that is, different code domain resources.

[0106] In some embodiments, the configuration information is configured with or includes the configuration of the first signal and / or the second signal, and the configuration information includes a basic sequence. The elements of the basic sequence can be all 1, or it can be a real number sequence, such as a gold sequence, or it can be a complex number sequence, for example, the real part and the imaginary part are generated by the gold sequence respectively.

[0107] In summary, the method provided by the embodiment of the present application, compared with the feedback method of carrying the quantized channel information on the signaling in the related art, the present application feeds back the channel information of the first channel by means of a channel modulation signal. On the one hand, the channel information of the first channel is modulated on the second signal, which can achieve lossless channel information feedback; on the other hand, only the time-frequency resources occupied by the first signal and the second signal are needed to feed back the channel information of the first channel, without the need to feed back multiple quantized bits. Since the time-frequency resources of the first signal and the second signal are multiplexed, no additional sending resources are required, which reduces the resource overhead required for feedback channel information, reduces the feedback cost of channel information, and improves the feedback accuracy and efficiency of channel information. Moreover, since the two signals can be repeated signals or independently configured signals, the flexibility of channel feedback is improved.

[0108] In a communication scenario, the method provided in this embodiment provides a channel information feedback method that provides more accurate feedback channel information and has lower resource overhead compared to traditional channel information feedback methods (such as measuring CSI).

[0109] In the perception scenario, the method provided in this embodiment supports wireless perception of the first node based on the channel information of the first channel. For example, based on the Doppler frequency shift of the first channel, the moving speed of the first node is perceived. For another example, based on the multipath delay of the first channel, the distance of the first node is perceived. For another example, based on the changes in the channel information of the first channel obtained through multiple measurements (such as changes in amplitude and / or phase), the perception of obstructions on the transmission path between the first node and the first node (such as the existence of obstructions, the departure of obstructions, etc.) is achieved. This application does not limit how the second node uses the channel information of the first channel for wireless perception, and it can be implemented using the wireless perception technology in the relevant technology.

[0110] As mentioned above, the configuration of the first signal and the second signal includes at least the following two methods:

[0111] Mode 1: Repeated configuration, that is, the configuration of the first signal and the configuration of the second signal are determined based on the configuration of the repeated signal;

[0112] Mode 2: Independent configuration, that is, the first signal and the second signal are two independently configured signals.

[0113] Next, taking the configuration information of a sounding reference signal (SRS) received by a first node as an example, possible configurations of the first signal and the second signal under two configuration modes are described respectively:

[0114] Method 1: Repeated configuration, that is, the configuration of the first signal and the configuration of the second signal are determined based on the configuration of the repeated signal

[0115] If the configuration of the first signal and the configuration of the second signal are repeated or identical, the first signal and the second signal may be considered duplicate signals. Based on the repeated configuration, the first signal and the second signal are sent simultaneously or periodically. Optionally, the period value is predefined by a standard protocol, configured by a network device, determined autonomously by the first node, or configured by the second node to the first node.

[0116] In some embodiments, the first node receives a repetition configuration of SRS-Resource, where the number of repetitions is greater than or equal to 2, with two repetitions corresponding to the first signal and the second signal, respectively. Here, the SRS signal is used as an example for explanation. Taking the number of repetitions as 2 as an example, the configuration of SRS-Resource is illustrated, and the specific values ​​are as follows:

[0117]

[0118]

[0119] Mode 2: Independent configuration, that is, the first signal and the second signal are two independently configured signals

[0120] In some embodiments, the first node receives an SRS resource set (SRS-ResourceSet), which includes at least two SRS-Resources, each including a configuration of a first signal and a configuration of a second signal. Optionally, the configuration of the first signal and the configuration of the second signal are partially different or completely different.

[0121] In some embodiments, the first signal and the second signal have the same configuration of frequency domain resources and spatial information. The first signal and the second signal have the same time slot configuration, that is, when both the first signal is periodic or semi-persistent, the period value and time slot offset value are the same; when both the first signal and the second signal are aperiodic, the time slot offset value is the same.

[0122] In some embodiments, the symbol positions of the first signal and the second signal within the time slot (including the starting symbol and / or the number of symbols in the time domain) are the same, but the port indexes are different; or, the symbol positions of the first signal and the second signal within the time slot (including the starting symbol and / or the number of symbols in the time domain) are different, and the port indexes are the same or different.

[0123] For example, an SRS-ResourceSet includes two SRS-Resources corresponding to the first signal and the second signal, where the configurations of the first signal and the second signal are the same except for the start symbol. The SRS-ResourceSet is as follows:

[0124]

[0125] The configuration of the first signal is as follows:

[0126]

[0127]

[0128] The configuration of the second signal is as follows:

[0129]

[0130] Take the SRS-ResourceSet containing two SRS-Resources corresponding to the first signal and the second signal as an example for explanation, wherein the configurations of the first signal and the second signal are the same except for the SRS port index. The SRS-ResourceSet is as follows:

[0131]

[0132]

[0133] The configuration of the first signal is as follows:

[0134]

[0135] The configuration of the second signal is as follows:

[0136]

[0137]

[0138] It should be understood that the above configuration information and values ​​are only examples, and this embodiment does not impose any limitations on them.

[0139] In the embodiment of the present application, the second signal is sent by modulating the channel information of the first channel, which at least includes a modulation mode of amplitude and / or phase modulation in the channel information of the first channel. The modulation mode can be divided into the following three types:

[0140] Type 1: Amplitude modulation via the first channel;

[0141] Type 2: Phase modulation via the first channel;

[0142] Type 3: Amplitude and phase modulation via the first channel.

[0143] Type 1: Amplitude modulation via the first channel

[0144] Figure 7 shows a flow chart of a wireless communication method provided by an exemplary embodiment of the present application, and takes the method in which the second signal is sent through amplitude modulation of the first channel, and the configurations of the first signal and the second signal in the configuration information are the same as an example for schematic illustration, that is, the configuration of the first signal and the configuration of the second signal are repeated.

[0145] Step 701: The first node modulates the second signal through the amplitude of the first channel;

[0146] Step 703: The first node sends a first signal and a second signal.

[0147] The configuration information of this embodiment includes the basic sequence of the first signal and the basic sequence of the second signal, and it is assumed that the basic sequences of the first signal and the second signal (hereinafter referred to as sequences) are the same, both of which are S=[s0,s1,…s L-2 ,s L-1 ], where L is the length of the sequence of the first signal and the length of the sequence of the second signal.

[0148] In this embodiment, the first channel is a channel from the second node to the first node, and the second channel is a channel from the first node to the second node. Among them, N c is the number of frequency domain units corresponding to the first channel, and the amplitude of the first channel is A=[a0,a1,…a L-2 ,a L-1 ], the phase of the first channel is The frequency domain unit is any one of a subband, a subcarrier, and a physical resource block. This embodiment is described by taking the frequency domain unit being a subcarrier as an example.

[0149] The first signal is sent by the first node to the second node according to the configuration information, and the second signal is sent by the first node according to the configuration information and the L second sequence elements therein are transmitted through the N in the first channel. c The amplitudes corresponding to all or part of the sequence elements in the first sequence elements are modulated and then sent to the second node.

[0150] The sequence element in the sequence of the first channel is the first sequence element, the sequence element in the configured basic sequence of the second signal is the second sequence element, and the sequence element in the sequence of the second signal sent by the first node is the third sequence element. The third sequence element is obtained by modulating the second sequence element by the amplitude corresponding to the first sequence element.

[0151] In some embodiments, L=N c , the i-th second sequence element in the L second sequence elements is obtained by N c The amplitude modulation corresponding to the i-th sequence element in the first sequence elements, i is not greater than L or N c An integer, i is an integer less than or equal to L, and i is an integer less than or equal to N c For example, the sequence of the second signal sent is S1=[s0a0,s1a1,…s L-2 a Nc-2 ,s L-1 a Nc-1 ].

[0152] In some embodiments, L>N c The L third sequence elements in the second signal sent are repeated by the L second sequence elements carrying the N in the first channel.c All or part of the sequence elements in the L sequence elements are obtained, that is, at least two second sequence elements in the L second sequence elements are obtained through N c The amplitude modulation corresponding to the jth first sequence element in the first sequence elements, where j is less than or equal to N c For example, the sequence of the second signal sent is S1=[s0a0,s1a0,s2a1…s L-2 a Nc-1 ,s L-1 a Nc-1 ].

[0153] In some embodiments, L>N c , the L third sequence elements in the second signal sent are the K second sequence elements in the L second sequence elements through N c In some embodiments, the K second sequence elements may be sampled from the L second sequence elements, or selected from the L second sequence elements according to a selection rule, or selected from the L second sequence elements according to a pseudo-random algorithm, where K is less than or equal to N c For example, the sequence of the second signal sent is S1=[s0a0,s1a1,s2a2,…s L-2 a Nc-2 ,s L-1 a Nc-1 ].

[0154] In some embodiments, L<N c , the L third sequence elements in the second signal sent are N in the first channel c The sequence elements of some sequence elements, that is, L second sequence elements through N c The amplitude modulation corresponding to M first sequence elements in the first sequence elements is a positive integer less than or equal to L. Optionally, the M first sequence elements can be selected from N c The first sequence elements are sampled, or N are sampled according to the selection rules. c The first sequence elements are selected, or the pseudo-random algorithm is used to select N c The sampling method is, for example, equal-interval sampling, intercepting the channel sequence on a part of the bandwidth, etc. The embodiment of the present application does not impose any limitation on the specific sampling method. For example, L is 4, N cTaking M as an example, if a0, a2, a4, and a6 are sampled at equal intervals to obtain the four first sequence elements, then the sequence S1 of the second signal to be sent is [s0a0, s1a2, s2a4, s3a6]; alternatively, if the four first sequence elements corresponding to a2, a3, a4, and a5 are intercepted on a partial bandwidth, then the sequence S1 of the second signal to be sent is [s0a2, s1a3, s2a4, s3a5]; alternatively, if the four first sequence elements corresponding to a0, a3, a4, and a6 are sampled according to a pseudo-random algorithm, then the sequence S1 of the second signal to be sent is [s0a0, s1a3, s2a4, s3a6].

[0155] To sum up, the method provided in the embodiment of the present application sends a first signal and a second signal modulated by the amplitude of the first channel according to the configuration information, so that the second node can obtain the amplitude information of the first channel and the information of the second channel more accurately, reducing the resource overhead of channel feedback and improving the flexibility of channel feedback.

[0156] Type 2: Phase modulation via the first channel

[0157] Figure 8 shows a flow chart of a wireless communication method provided by an exemplary embodiment of the present application, and takes the method in which the second signal is sent through phase modulation of the first channel, and the configurations of the first signal and the second signal in the configuration information are the same as an example for schematic explanation, that is, the configuration of the first signal and the configuration of the second signal are repeated.

[0158] Step 801: A first node modulates a second signal through the phase of a first channel;

[0159] Step 803: The first node sends a first signal and a second signal.

[0160] The configuration information of this embodiment includes the basic sequences of the first signal and the second signal, and it is assumed that the basic sequences of the first signal and the second signal are the same, both of which are S=[s0,s1,…s L-2 ,s L-1 ], where L is the length of the sequence of the first signal and the second signal.

[0161] In this embodiment, the first channel is a channel from the second node to the first node, and the second channel is a channel from the first node to the second node. Among them, N c is the number of frequency domain units corresponding to the first channel, and the amplitude of the first channel is A=[a0,a1,…a L-2 ,a L-1 ], the phase of the first channel is The frequency domain unit is any one of a subband, a subcarrier, and a physical resource block. This embodiment is described by taking the frequency domain unit being a subcarrier as an example.

[0162] The first signal is sent by the first node to the second node according to the configuration information, and the second signal is sent by the first node according to the configuration information and the L second sequence elements therein are transmitted through the N in the first channel. c The phases corresponding to all or part of the sequence elements in the first sequence elements are modulated and then sent to the second node.

[0163] The sequence element in the sequence of the first channel is the first sequence element, the sequence element in the configured base sequence of the second signal is the second sequence element, and the sequence element in the sequence of the second signal sent by the first node is the third sequence element. The third sequence element is obtained by modulating the second sequence element by the phase corresponding to the first sequence element. In some embodiments, L=N c , the i-th second sequence element in the L second sequence elements is obtained by N c The phase modulation corresponding to the i-th sequence element in the first sequence elements, i is not greater than L or N c An integer, i is an integer less than or equal to L, and i is an integer less than or equal to N c For example, the sequence of the second signal sent is

[0164] In some embodiments, L>N c The L third sequence elements in the second signal sent are repeated by the L second sequence elements carrying the N in the first channel. c All or part of the sequence elements in the L sequence elements are obtained, that is, at least two second sequence elements in the L second sequence elements are obtained through N c Phase modulation corresponding to the jth first sequence element in the first sequence elements, where j is less than or equal to N c For example, the sequence of the second signal sent is

[0165] In some embodiments, L>N c , the L third sequence elements in the second signal sent are the K second sequence elements in the L second sequence elements through N c Optionally, the K second sequence elements may be sampled from the L second sequence elements, or selected from the L second sequence elements according to a selection rule, or selected from the L second sequence elements according to a pseudo-random algorithm, where K is less than or equal to N c For example, the sequence of the second signal sent is

[0166] In some embodiments, L<N c , the L third sequence elements in the second signal sent are N in the first channel c The sequence elements of some sequence elements, that is, L second sequence elements through N c The phase modulation corresponding to M first sequence elements in the first sequence elements is a positive integer less than or equal to L. Optionally, the M first sequence elements can be selected from N c The first sequence elements are sampled, or N are sampled according to the selection rules. c The first sequence elements are selected, or the pseudo-random algorithm is used to select N c The sampling method is, for example, sampling at equal intervals, intercepting the channel sequence on a portion of the bandwidth, etc. The present application embodiment does not impose any limitation on the specific sampling method. For example, taking L as 4, N as 7, and M as 4 as an example, the four first sequence elements corresponding to a0, a2, a4, and a6 are sampled at equal intervals, and the sequence of the second signal sent is Alternatively, the four first sequence elements corresponding to a2, a3, a4, and a5 are intercepted on a portion of the bandwidth, and the sequence of the second signal sent is Alternatively, the four first sequence elements corresponding to a0, a3, a4, and a6 are obtained by sampling according to a pseudo-random algorithm, and the sequence of the second signal sent is

[0167] To sum up, the method provided in the embodiment of the present application sends a first signal and a second signal phase-modulated by the first channel according to the configuration information, so that the second node can obtain the phase information of the first channel and the information of the second channel more accurately, reducing the resource overhead of channel feedback and improving the flexibility of channel feedback.

[0168] Type 3: Amplitude and phase modulation via the first channel

[0169] Figure 9 shows a flow chart of a wireless communication method provided by an exemplary embodiment of the present application, and takes the method in which the second signal is sent through phase modulation of the first channel, and the configurations of the first signal and the second signal in the configuration information are the same as an example for schematic explanation, that is, the configuration of the first signal and the configuration of the second signal are repeated.

[0170] Step 901: The first node modulates the second signal through the amplitude and phase of the first channel;

[0171] Step 903: The first node sends a first signal and a second signal.

[0172] The configuration information of this embodiment includes the basic sequences of the first signal and the second signal, and it is assumed that the basic sequences of the first signal and the second signal are the same, both of which are S=[s0,s1,…s L-2 ,s L-1 ], where L is the length of the sequence of the first signal and the second signal.

[0173] In this embodiment, the first channel is a channel from the second node to the first node, and the second channel is a channel from the first node to the second node. Among them, N c is the number of frequency domain units corresponding to the first channel, and the amplitude of the first channel is A=[a0,a1,…a L-2 ,a L-1 ], the phase of the first channel is The frequency domain unit is any one of a subband, a subcarrier, and a physical resource block. This embodiment is described by taking the frequency domain unit being a subcarrier as an example.

[0174] The first signal is sent by the first node to the second node according to the configuration information, and the second signal is sent by the first node according to the configuration information and the L second sequence elements thereof through the N in the first channel. c The amplitudes and phases corresponding to all or part of the sequence elements in the first sequence elements are modulated and then sent to the second node.

[0175] The sequence element in the sequence of the first channel is the first sequence element, the sequence element in the configured basic sequence of the second signal is the second sequence element, and the sequence element in the sequence of the second signal sent by the first node is the third sequence element. The third sequence element is obtained by modulating the second sequence element by the amplitude and phase of the first sequence element.

[0176] In some embodiments, L=N c , the i-th second sequence element in the L second sequence elements is obtained by N c The amplitude and phase modulation corresponding to the i-th sequence element in the first sequence elements, i is not greater than L or N c An integer, i is an integer less than or equal to L, and i is an integer less than or equal to N c For example, the sequence of the second signal sent is

[0177] In some embodiments, L>N c The L third sequence elements in the second signal sent are repeated by the L second sequence elements carrying the N in the first channel. c All or part of the sequence elements in the L sequence elements are obtained, that is, at least two second sequence elements in the L second sequence elements are obtained through N cThe amplitude and phase modulation corresponding to the jth first sequence element in the first sequence elements, where j is less than or equal to N c For example, the sequence of the second signal sent is

[0178] In some embodiments, L>N c , the L third sequence elements in the second signal sent are the K second sequence elements in the L second sequence elements through N c Optionally, the K second sequence elements may be sampled from the L second sequence elements, or selected from the L second sequence elements according to a selection rule, or selected from the L second sequence elements according to a pseudo-random algorithm, where K is less than or equal to N c For example, the sequence of the second signal sent is

[0179] In some embodiments, L<N c , the L third sequence elements in the second signal sent are N in the first channel c The sequence elements of some sequence elements, that is, L second sequence elements through N c The amplitude and phase modulation corresponding to M first sequence elements in the first sequence elements, M is a positive integer less than or equal to L. Optionally, the M first sequence elements can be selected from N c The first sequence elements are sampled, or N are sampled according to the selection rules. c The first sequence elements are selected, or the pseudo-random algorithm is used to select N c The sampling method is, for example, sampling at equal intervals or intercepting a channel sequence on a portion of the bandwidth. The present application embodiment does not impose any limitation on the specific sampling method. For example, taking L as 4, N as 7, and M as 4 as an example, the four first sequence elements corresponding to a0, a2, a4, and a6 are sampled at equal intervals, and the sequence of the second signal sent is Alternatively, the four first sequence elements corresponding to a2, a3, a4, and a5 are intercepted on a portion of the bandwidth, and the sequence of the second signal sent is Alternatively, the four first sequence elements corresponding to a0, a3, a4, and a6 are obtained by sampling according to a pseudo-random algorithm, and the sequence of the second signal sent is

[0180] To sum up, the method provided in the embodiment of the present application sends a first signal and a second signal modulated by amplitude and phase of the first channel according to the configuration information, so that the second node can obtain the information of the first channel and the second channel more accurately, reducing the resource overhead of channel feedback and improving the flexibility of channel feedback.

[0181] Figure 10 shows a flow chart of a wireless communication method provided by an exemplary embodiment of the present application. The method in this embodiment is executed by the second node, and the method includes at least some of the following steps:

[0182] Step 320: Receive a group of signals sent by the first node, where the group of signals includes at least one first signal and at least one second signal;

[0183] The set of signals may be periodic, non-periodic, or semi-persistent.

[0184] The first signal is sent by the first node according to the configuration information, and the second signal is sent by the first node via modulation of the first channel. That is, the first signal is not modulated by the channel information of the first channel, while the second signal is modulated by the channel information of the first channel. Both the first signal and the second signal are sent according to the configuration information. If the configuration information includes the configuration of the first signal and the configuration of the second signal, the first signal is sent according to the configuration of the first signal, and the second signal is sent according to the configuration of the second signal. Furthermore, the second signal is additionally modulated by the channel information of the first channel before being sent.

[0185] The first node sends a group of signals to the second node. Optionally, the first channel is a channel from the second node to the first node; or, the first channel is a channel from another node to the first node, such as a channel from the third node to the first node; or, the first channel is a channel from the second node to another node, such as a channel from the second node to the third node; or, the first channel is a channel from the fourth node to the third node.

[0186] The second channel is a channel from the first node to the second node. The first signal is sent on the second channel according to the configuration information without being modulated by the first channel. The second signal is sent on the second channel after being modulated according to the configuration information and the channel information of the first channel. Therefore, the first signal carries the channel information of the second channel, and the second signal carries the channel information of the first channel and the channel information of the second channel at the same time.

[0187] In some embodiments, in the configuration information, the configuration of the first signal and the configuration of the second signal are the same or different. For example, the time domain information of the first signal is different from the time domain information of the second signal, and the other configurations are the same; or the frequency domain information of the first signal is different from the frequency domain information of the second signal, and the other configurations are the same; or the code domain information of the first signal is different from the code domain information of the second signal, and the other configurations are the same; or the spatial information of the first signal is the same as the spatial information of the second signal, and the other configurations are different; or the time domain information, frequency domain information, code domain information, and spatial information of the first signal are all different from the time domain information, frequency domain information, code domain information, and spatial information of the second signal.

[0188] Spatial information can be understood as meaning spatial information, spatial relationships, beam information, etc. Spatial information can be indicated using a transmission configuration indicator (TCI). The QCL information carried in the TCI is used to indicate the beam information corresponding to the signal.

[0189] In some embodiments, the channel information may be considered as CSI, such as CSI measured but not quantized by the first node.

[0190] In some embodiments, the channel information of the first channel includes at least one of amplitude, phase, Doppler shift, and multipath delay.

[0191] Taking amplitude and / or phase as an example, the second signal is modulated by the amplitude of the first channel; or, the second signal is modulated by the phase of the first channel; or, the second signal is modulated by the amplitude and phase of the first channel.

[0192] In some embodiments, configuration information is sent by the second node to the first node, where the configuration information is used to configure resources of the group of signals.

[0193] In some embodiments, the configuration information is sent to the first node by other nodes, which may be routers, power supply devices, peer devices, network devices, etc.

[0194] In some embodiments, the configuration information is autonomously configured by the first node, and the configuration information is used to configure resources of the group of signals, for example, the first node is a base station.

[0195] In some embodiments, the configuration information includes at least one of the following:

[0196] Configuration of the first signal;

[0197] Configuration of the second signal.

[0198] In some embodiments, configuring includes at least one of the following:

[0199] Sequence information, such as sequence ID;

[0200] Port information, such as at least one of the port number and port index;

[0201] Time domain resources, such as at least one of a period, a time slot offset, a start symbol of the time domain, a number of symbols in the time domain, and a number of repetitions;

[0202] Frequency domain resources, such as at least one of comb parameters, comb index (offset), cyclic shift, starting resources such as RBs, bandwidth, and frequency hopping parameters;

[0203] Code domain resources, such as orthogonal codes. For example, a first signal is encoded using a first orthogonal code, and a second signal is encoded using a second orthogonal code, where the first and second orthogonal codes are mutually orthogonal.

[0204] Power information, such as at least one of a power compensation coefficient, target power, path loss reference signal, and closed-loop power control mode;

[0205] Spatial information, such as at least one of beam information, carrier ID, associated signal type, and associated signal index.

[0206] In some embodiments, the group of signals is a group of repeated signals, and the first signal and the second signal are two signals in the group of repeated signals, that is, the configuration of the first signal and the configuration of the second signal in the configuration information are the same.

[0207] In some embodiments, the configuration of the first signal and the configuration of the second signal are independently configured, that is, the configuration of the first signal and the configuration of the second signal in the configuration information are partially different or not the same.

[0208] In some embodiments, the configuration information is used to indicate at least one of the following:

[0209] The sequence information of the first signal and the sequence information of the second signal are the same;

[0210] The sequence information of the first signal is different from the sequence information of the second signal;

[0211] The port information of the first signal is the same as the port information of the second signal;

[0212] The port information of the first signal is different from the port information of the second signal;

[0213] The frequency domain resources of the first signal and the frequency domain resources of the second signal are the same;

[0214] The spatial information of the first signal and the spatial information of the second signal are the same;

[0215] The power information of the first signal and the power information of the second signal are the same;

[0216] The interval between the time domain resource of the first signal and the time domain resource of the second signal is less than a first threshold;

[0217] The time domain resources of the first signal and the time domain resources of the second signal are the same, and the code domain resources of the first signal and the code domain resources of the second signal are different.

[0218] Step 340: Determine channel information of the first channel and / or the second channel.

[0219] In some embodiments, channel information of the first channel is determined based on the second signal and the first signal.

[0220] In some embodiments, the channel information of the first channel is determined based on the second signal, the first signal, and a first operation method.

[0221] In some embodiments, the first operation mode includes at least one of the following:

[0222] Divide the first signal by the second signal;

[0223] • Multiply the second signal by the conjugate of the first signal.

[0224] In some embodiments, the channel information of the first channel is determined based on a quotient of the second signal and the first signal; or, the channel information of the first channel is determined based on a multiplication of the second signal and a conjugate of the second signal.

[0225] In some embodiments, the second node determines channel information of the first channel based on the received second signal and the received first signal.

[0226] In some embodiments, the channel information of the second channel is determined based on the first signal, a basis sequence of the first signal, and a second operation method.

[0227] In some embodiments, the second operation mode includes at least one of the following:

[0228] Dividing the first signal by the basis sequence of the first signal;

[0229] • Multiplying the first signal by the conjugate of the basis sequence of the first signal.

[0230] In some embodiments, the channel information of the first channel is determined based on a quotient of the second signal and the first signal; or, the channel information of the first channel is determined based on a multiplication of the second signal and a conjugate of the second signal.

[0231] In some embodiments, the channel information of the first channel is determined by dividing the received second signal by the received first signal; or the channel information of the first channel is determined by conjugating the received second signal and the received first signal.

[0232] In some embodiments, channel information of a second channel is determined based on the first signal and the first signal.

[0233] In some embodiments, the second node determines channel information of the second channel based on the received first signal and the first signal in the configuration information.

[0234] In some embodiments, the channel information of the second channel is determined based on a quotient of the received first signal and the first signal configured by the configuration information;

[0235] Alternatively, the channel information of the second channel is determined based on a conjugate multiplication of the received first signal and the first signal configured by the configuration information. In some embodiments, the channel information of the second channel is determined by dividing the received first signal by the first signal in the configuration information; or by conjugate multiplication of the received first signal by the first signal in the configuration information.

[0236] In this embodiment, a schematic description is given by taking the case where the first channel is a channel from the second node to the first node, the second channel is a channel from the first node to the second node, and the configurations of the first signal and the second signal in the configuration information are the same, that is, the configuration of the first signal and the configuration of the second signal are repeated.

[0237] Assume that the basic sequences of the first signal and the second signal in the configuration information are the same, both S = [s0, s1, ...s L-2 ,s L-1 ], where L is the length of the sequence of the first signal and the second signal.

[0238] Let the sequence of the first channel be Among them, N c is the number of frequency domain units corresponding to the first channel, a is the amplitude of the first channel, e -w The frequency domain unit is any one of a subband, a subcarrier, and a physical resource block. This embodiment uses the frequency domain unit being a subcarrier as an example for explanation.

[0239] Let the sequence of the second channel be H2.

[0240] A case where the channel information of the first channel is determined:

[0241] 1. For the case where the second signal determines the first channel by amplitude modulation of the first channel:

[0242] In some embodiments, the first signal Y1 received by the second node on the first signal resource is equal to S×H2+N1, that is, The second signal Y2=S1×H2+N2 received by the second node on the second signal resource, that is, Where N1 and N2 are noises. Then the amplitude of the first channel is obtained by dividing the sequence of the received second signal by the sequence of the received first signal, or by conjugating the sequence of the received second signal with the sequence of the received first signal. L-2 ,a L-1 ]+N 12 ′. Among them, M 12 ' is noise, for example, N' 12 is the quotient of N2 and N1.

[0243] 2. For the case where the second signal is phase modulated by the first channel:

[0244] In some embodiments, the first signal Y1 received by the second node on the first signal resource is equal to S×H2+N1, that is, The second signal Y2=S1×H2+N2 received by the second node on the second signal resource, that is, Where N1 and N2 are noises. Then the phase of the first channel is obtained by dividing the sequence of the received second signal by the sequence of the received first signal, or by conjugating the sequence of the received second signal with the sequence of the received first signal. Among them, N 12 ' is noise, for example, N' 12 is the quotient of N2 and N1.

[0245] 3. For the case where the second signal is amplitude and / or phase modulated by the first channel:

[0246] In some embodiments, the first signal Y1 received by the second node on the first signal resource is equal to S×H2+N1, that is, The second signal Y2=S1×H2+N2 received by the second node on the second signal resource, that is, Where N1 and N2 are noises. Then the sequence of the first channel is obtained by dividing the sequence of the second signal received by the sequence of the first signal received, or by conjugating and multiplying the sequence of the second signal received by the sequence of the first signal received. Among them, N c is the number of frequency domain units corresponding to the first channel, and the amplitude of the first channel is A=[a0,a1,…a L-2 ,a L-1 ], the phase of the first channel is N 12 ' is noise, for example, N' 12is the quotient of N2 and N1.

[0247] A case where the channel information of the second channel is determined:

[0248] In some embodiments, the first signal Y1 received by the second node on the first signal resource is equal to S×H2+N1, that is, Where N1 and N2 are noises. Then the sequence of the first signal received is divided by the base sequence of the first signal in the configuration information, or the sequence of the first signal received is conjugate-multiplied by the base sequence of the first signal in the configuration information to obtain the sequence of the second channel. Wherein, N1′ is noise, and N′1 is, for example, the derivative of N1.

[0249] In some embodiments, the sequence of the first channel includes N c The sequence of the received second signal includes L third sequence elements, and the L third sequence elements in the received second signal are obtained by combining the L second sequence elements of the second signal in the configuration information through N c The channel information of all or part of the first sequence elements is modulated. Wherein, L is the length of the second signal sequence, N c is the number of frequency domain units corresponding to the first channel.

[0250] For L=N c Situation:

[0251] In some embodiments, L=N c , then the i-th second sequence element in the L second sequence elements is represented by N c The channel information modulation of the i-th sequence element in the first sequence elements, i is not greater than L or N c After the second node processes the data of the i-th third sequence element, it obtains the channel information of the j-th first sequence element. For example, the second node knows that the third second sequence element in the L second sequence elements is composed of N c The channel information of the second first sequence element is modulated by dividing or conjugate-multiplying the third third sequence element of the L third sequence elements in the received second signal and the third second sequence element of the L second sequence elements in the configuration information to obtain the channel information of the second first sequence element.

[0252] For L>N c Situation:

[0253] In some embodiments, L>N c , then at least two of the L second sequence elements are composed of N cThe second node processes the at least two third sequence elements corresponding to the at least two second sequence elements to obtain the channel information of the jth first sequence element. For example, the second node knows that the third and fourth second sequence elements of the L second sequence elements are composed of N c The channel information of the second first sequence element is modulated by dividing or conjugate-multiplying the third and fourth third sequence elements of the L third sequence elements in the received second signal by the third and fourth second sequence elements of the L second sequence elements in the configuration information, and then taking an average value, a maximum value, a minimum value, or a middle value to obtain the channel information of the second first sequence element.

[0254] In some embodiments, L>N c , then the K second sequence elements in the L second sequence elements are composed of N c The second node modulates the channel information of the K first sequence elements. c After data processing of the third sequence elements, the N c For example, the second node knows that K of the L second sequence elements are composed of N c The channel information of the first sequence elements is modulated, and K third sequence elements among the L third sequence elements in the received second signal are divided or conjugate multiplied by K second sequence elements among the L second sequence elements in the configuration information to obtain N c The channel information of the first sequence elements.

[0255] For L<N c Situation:

[0256] In some embodiments, L<N c , then the L second sequence elements are N c The channel information of M first sequence elements in the first sequence elements is modulated, where M is a positive integer less than or equal to L. After the second node processes the L third sequence elements, it obtains the channel information of the M first sequence elements. For example, the second node knows that the L second sequence elements are composed of N c The channel information of M first sequence elements is modulated by dividing or conjugate-multiplying the L third sequence elements in the received second signal and the L second sequence elements in the configuration information to obtain the channel information of the M first sequence elements.

[0257] In summary, the method provided in the embodiment of the present application supports obtaining channel information in two channel directions by calculating a set of received signals, thereby reducing resource overhead in the channel feedback process and improving communication efficiency.

[0258] For example, in conjunction with the communication scenarios shown in Figures 2 to 5 above, the following wireless communication methods may be used. It should be understood that the following wireless communication methods are intended to be illustrative and do not limit the wireless communication methods provided in this application. The feedback method of the first channel may also be applied not to the wireless sensing scenario, but to other communication scenarios.

[0259] As shown in Figure 2, the first node 10 sends a group of signals, which includes at least one first signal and at least one second signal. The second signal is sent after being modulated by the channel information of the first channel, and the first signal is not modulated by the channel information of the first channel. After the second node 20 receives the group of signals, the first signal carries the channel information of the second channel, and the second signal carries the channel information of the first channel and the channel information of the second channel. That is, the second node 20 can determine the channel information of the second channel based on the first signal, and can determine the channel information of the first channel based on the first signal and the second signal. Exemplarily, the first node is a mobile phone and the second node is a vehicle. The vehicle perceives the change of the obstruction between the mobile phone and the vehicle through the change of the channel information of the first signal and / or the second signal (such as amplitude and / or phase), and perceives the moving speed of the mobile phone through the Doppler frequency shift of the first channel.

[0260] As shown in Figure 3, the first node 10 sends a group of signals, which includes at least one first signal and at least one second signal. The second signal is sent after being modulated by the channel information of the first channel, and the first signal is not modulated by the channel information of the first channel. The second node 20 can determine the channel information of the first channel and / or the channel information of the second channel based on the group of signals. Exemplarily, the first node is a mobile phone, the second node is a vehicle, and the third node is a base station. The vehicle perceives the distance between itself and the mobile phone through the multipath delay of the second signal, and also perceives the moving speed and distance of the mobile phone relative to the base station through the Doppler frequency shift and multipath delay of the first channel.

[0261] As shown in Figure 4, the first node 10 obtains the channel information of the first channel (in any manner, transmitted to the first node 10 by the third node 30), and the first node 10 sends a group of signals, which includes at least one first signal and at least one second signal. Among them, the first signal is not modulated by the channel information of the first channel, and the second signal is sent after being modulated by the channel information of the first channel. The second node 20 can determine the channel information of the first channel and / or the channel information of the second channel based on the group of signals. Exemplarily, the first node is a mobile phone, the second node is a vehicle, and the third node is a base station. The vehicle is out of the communication range with the base station. The vehicle perceives the distance between the mobile phone and the vehicle through the multipath delay of the second signal, and also perceives the change of the obstruction between the vehicle itself and the base station through the change of the channel information of the first channel (such as the change of amplitude and phase), and perceives the distance between the vehicle itself and the base station through the multipath delay of the first channel.

[0262] As shown in Figure 5, the first node 10 obtains the channel information of the first channel (in any manner, transmitted to the first node 10 by the third node 30), and the first node 10 sends a group of signals, which includes at least one first signal and at least one second signal. Among them, the second signal is sent after being modulated by the channel information of the first channel, and the first signal is sent without being modulated by the channel information of the first channel. The second node 20 can determine the channel information of the first channel and / or the channel information of the second channel based on the group of signals. Exemplarily, the first node is a mobile phone, the second node is a vehicle, the third node is a base station, and the fourth node is an indoor router. The vehicle is out of the communication range with the base station. The vehicle perceives the distance between the mobile phone and the vehicle through the multipath delay of the second signal, and also perceives the change of the obstruction between the indoor router and the base station through the change of the channel information of the first channel (such as the change of amplitude and phase).

[0263] FIG11 shows a schematic diagram of a wireless communication scenario provided by an exemplary embodiment of the present application. This embodiment is schematically described by taking at least a first node 111 and a second node 113 as an example.

[0264] In this embodiment, the second channel is a channel from the first node 111 to the second node 113, and the first channel is a channel from the second node 113 to the first node 111 or a channel from another node to the first node 111. The other nodes may be routers, power supply devices, peer devices, network devices, etc.

[0265] The first node 111 sends a group of signals based on the configuration information, where the configuration information is used to configure resources for a group of signals. Optionally, the configuration information is determined autonomously by the first node 111, or configured by the second node 113 to the first node 111, or configured by other nodes to the first node 111.

[0266] In the configuration information, the configuration of the first signal and the configuration of the second signal are repeated, or the first signal and the second signal are independently configured signals.

[0267] Based on the configuration information, the first node 111 sends a set of signals to the second node 113, the set of signals including a first signal and a second signal. The first signal is sent according to the configuration information, and the second signal is sent after being modulated through the first channel according to the configuration information. Optionally, the second signal is amplitude- and / or phase-modulated using the first channel. Therefore, the first signal carries channel information for the second channel, and the second signal carries channel information for both the first and second channels.

[0268] The second node 113 receives a set of signals from the first node 111. The received first signal is divided by the first signal configured by the configuration information to obtain channel information of the second channel. The received second signal is divided by the received first signal to obtain channel information of the first channel.

[0269] In summary, the method provided in this embodiment, by carrying the channel information of the second channel on the first signal and simultaneously carrying the channel information of the first channel and the second channel on the second signal through channel modulation, can achieve a lossless and resource-efficient channel information feedback method while meeting the channel information feedback requirements, allowing the receiving node to obtain channel information in both channel directions. Furthermore, because the two signals can be repeated signals or independently configured signals, the flexibility of channel feedback is improved.

[0270] FIG12 shows a block diagram of a wireless communication device according to an exemplary embodiment of the present application. The device includes at least some of the following modules: a first sending module 510 and a first receiving module 530.

[0271] The first sending module 510 is used to send a group of signals, where the group of signals includes at least one first signal and at least one second signal; wherein the first signal is sent according to the configuration information, and the second signal is sent by modulating the channel information of the first channel.

[0272] In some embodiments, the first channel comprises a second node to the device channel.

[0273] In some embodiments, the channel information of the first channel includes at least one of the following: amplitude, phase, Doppler shift, and multipath delay.

[0274] In some embodiments, the sequence in the first channel includes N c first sequence elements, and the sequence of the second signal includes L second sequence elements;

[0275] The second signal is composed of the L second sequence elements through the N c modulate and send the channel information corresponding to all or part of the first sequence elements;

[0276] Wherein, L is the sequence length of the second signal in the configuration information, N c is the number of frequency domain units corresponding to the first channel.

[0277] In some embodiments,

[0278] When L equals N c In the case of the i-th second sequence element in the L second sequence elements, the N c The channel information corresponding to the i-th sequence element in the first sequence elements is modulated and sent, where i is less than or equal to L or N c integer;

[0279] When L is greater than N c In the case of at least two second sequence elements of the L second sequence elements, the N c The channel information corresponding to the jth first sequence element in the first sequence elements is modulated and sent, where j is less than or equal to N c An integer of, or, K second sequence elements in the L second sequence elements are represented by N c The channel information corresponding to the first sequence elements is modulated and sent, and K is less than or equal to N c A positive integer;

[0280] When L is less than N c In the case of the L second sequence elements through the N c The channel information corresponding to M first sequence elements in the first sequence elements is modulated and sent, where M is a positive integer less than or equal to L.

[0281] In some embodiments, the apparatus further includes a first receiving module 530, configured to receive the configuration information, where the configuration information is used to configure resources of the group of signals.

[0282] In some embodiments, the configuration information includes at least one of the following:

[0283] configuration of the first signal;

[0284] configuration of the second signal;

[0285] The configuration includes: at least one of sequence information, port information, time domain resources, frequency domain resources, code domain resources, power information, and spatial information.

[0286] In some embodiments, the configuration information is used to indicate at least one of the following:

[0287] The sequence information of the first signal is the same as the sequence information of the second signal;

[0288] The sequence information of the first signal is different from the sequence information of the second signal;

[0289] The port information of the first signal is the same as the port information of the second signal;

[0290] The port information of the first signal is different from the port information of the second signal;

[0291] The frequency domain resource of the first signal is the same as the frequency domain resource of the second signal;

[0292] The spatial information of the first signal is the same as the spatial information of the second signal;

[0293] The power information of the first signal is the same as the power information of the second signal;

[0294] An interval between the time domain resource of the first signal and the time domain resource of the second signal is smaller than a first threshold;

[0295] The time domain resources of the first signal and the time domain resources of the second signal are the same, and the code domain resources of the first signal and the code domain resources of the second signal are different.

[0296] In some embodiments, the configuration information includes configurations of a set of repetitive signals, and the configurations of the first signal and the second signal are determined based on the configurations of the set of repetitive signals.

[0297] In summary, the apparatus provided in this embodiment supports carrying the channel information of the second channel on the first signal, and simultaneously carrying the channel information of the first channel and the second channel on the second signal by means of a channel modulation signal. This enables lossless channel information feedback that reduces resource overhead while meeting channel information feedback requirements, allowing the receiving node to obtain channel information in both channel directions. Furthermore, because the two signals can be duplicate signals or independently configured signals, the flexibility of channel feedback is enhanced.

[0298] FIG13 shows a block diagram of a wireless communication device according to an exemplary embodiment of the present application. The device includes at least some of the following modules: a second receiving module 610 and a second sending module 630.

[0299] The second receiving module 610 is used to receive a group of signals sent by the first node, where the group of signals includes at least one first signal and at least one second signal; wherein the first signal is sent by the first node according to the configuration information, and the second signal is sent by the first node through modulation of the channel information of the first channel.

[0300] In some embodiments, the first channel comprises a channel from the second node to the first node.

[0301] In some embodiments, channel information of the first channel is determined based on the second signal and the first signal.

[0302] In some embodiments, the apparatus further includes a determination module 620 configured to determine channel information of the first channel based on the second signal, the first signal, and a first operation method.

[0303] In some embodiments, the first operation mode includes at least one of the following:

[0304] dividing the first signal by the second signal;

[0305] The second signal and the conjugate of the second signal are multiplied.

[0306] In some embodiments, the channel information of the first channel is determined based on a quotient of the second signal and the first signal;

[0307] Alternatively, the channel information of the first channel is determined based on the second signal and a conjugate multiplication of the second signal.

[0308] In some embodiments, the channel information of the first channel includes at least one of the following:

[0309] Amplitude, phase, Doppler shift, and multipath delay.

[0310] In some embodiments, the sequence in the first channel includes N c first sequence elements, and the received sequence of the second signal includes L second sequence elements;

[0311] The received second signal is composed of the L second sequence elements through the N c Channel information corresponding to all or part of the first sequence elements in the first sequence elements is modulated and sent;

[0312] Wherein, L is the sequence length of the second signal, N c is the number of frequency domain units corresponding to the first channel.

[0313] In some embodiments,

[0314] When L equals N c In the case of the i-th second sequence element in the L second sequence elements, the N c The channel information modulation corresponding to the i-th sequence element in the first sequence elements, i is less than or equal to L or N c integer;

[0315] When L is greater than N c In the case where at least two of the L second sequence elements are composed of the N c The channel information corresponding to the j-th first sequence element in the first sequence elements is modulated, or the K second sequence elements in the L second sequence elements are modulated by the N c The channel information corresponding to the first sequence elements is modulated, and K is less than or equal to N c A positive integer;

[0316] When L is less than N c In the case where the L second sequence elements are composed of the N c The channel information corresponding to M first sequence elements in the first sequence elements is modulated, where M is a positive integer less than or equal to L.

[0317] In some embodiments, the determination module 620 is further configured to determine channel information of a second channel based on the first signal and the second signal, wherein the second channel is a channel from the first node to the second node.

[0318] In some embodiments, the second operation mode includes at least one of the following:

[0319] dividing the first signal by a basis sequence of the first signal;

[0320] The first signal is conjugate multiplied by a basis sequence of the first signal.

[0321] In some embodiments, the determining module 620 is further configured to determine channel information of the second channel by dividing the received first signal by the first signal configured by the configuration information;

[0322] Alternatively, the received first signal is conjugate-multiplied by the first signal configured by the configuration information to determine the channel information of the second channel.

[0323] In some embodiments, the apparatus further includes a second sending module 630, configured to send the configuration information to the first node, where the configuration information is used to configure resources of the group of signals.

[0324] In some embodiments, the configuration information includes at least one of the following:

[0325] configuration of the first signal;

[0326] configuration of the second signal;

[0327] The configuration includes: at least one of sequence information, port information, time domain resources, frequency domain resources, code domain resources, power information, and spatial information.

[0328] In some embodiments, the configuration information is used to indicate at least one of the following:

[0329] The sequence information of the first signal is the same as the sequence information of the second signal;

[0330] The sequence information of the first signal is different from the sequence information of the second signal;

[0331] The port information of the first signal is the same as the port information of the second signal;

[0332] The port information of the first signal is different from the port information of the second signal;

[0333] The frequency domain resource of the first signal is the same as the frequency domain resource of the second signal;

[0334] The spatial information of the first signal is the same as the spatial information of the second signal;

[0335] The power information of the first signal is the same as the power information of the second signal;

[0336] An interval between the time domain resource of the first signal and the time domain resource of the second signal is smaller than a first threshold;

[0337] The time domain resources of the first signal and the time domain resources of the second signal are the same, and the code domain resources of the first signal and the code domain resources of the second signal are different.

[0338] In some embodiments, the configuration information includes configurations of a set of repetitive signals, and the configurations of the first signal and the second signal are determined based on the configurations of the set of repetitive signals.

[0339] In summary, the device provided in the embodiment of the present application supports obtaining channel information in two channel directions by calculating a set of received signals, thereby reducing resource overhead in the channel feedback process and improving communication efficiency.

[0340] It should be noted that the device provided in the above embodiment is only illustrated by the division of the above functional modules. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0341] Regarding the device in this embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method and will not be elaborated here.

[0342] FIG14 shows a schematic structural diagram of a communication device provided by an exemplary embodiment of the present application. The communication device 700 includes: a processor 701 , a receiver 702 , a transmitter 703 , a memory 704 and a bus 705 .

[0343] The communication device provided in this embodiment includes: at least one of: a terminal, a network device, a perception node, a perception device, a perception receiving end, and a perception sending end.

[0344] The processor 701 , the receiver 702 , the transmitter 703 and the memory 704 are connected to each other via a bus 705 .

[0345] The processor 701 includes one or more processing cores, and the processor 701 executes various functional applications and information processing by running software programs and modules. In some embodiments, the processor 701 can be used to implement the functions and steps of the determination module 620 as described above.

[0346] The receiver 702 and transmitter 703 can be implemented as a communication component, which can be a communication chip. In some embodiments, the receiver 702 can be used to implement the functions and steps of the first receiving module 530 and / or the second receiving module 610 described above. In some embodiments, the transmitter 703 can be used to implement the functions and steps of the first transmitting module 510 and / or the second transmitting module 630 described above.

[0347] The memory 704 is connected to the processor 701 via a bus 705. The memory 704 may be used to store at least one instruction, and the processor 701 may be used to execute the at least one instruction to implement each step in the above method embodiment.

[0348] In addition, the memory 704 can be implemented by any type of volatile or non-volatile storage device or a combination thereof. Volatile or non-volatile storage devices include but are not limited to: magnetic disks or optical disks, electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), static random-access memory (SRAM), read-only memory (ROM), magnetic memory, flash memory, and programmable read-only memory (PROM).

[0349] In some embodiments, the receiver 702 receives signals / data independently, or the processor 701 controls the receiver 702 to receive signals / data, or the processor 701 requests the receiver 702 to receive signals / data, or the processor 701 cooperates with the receiver 702 to receive signals / data.

[0350] In some embodiments, the transmitter 703 independently sends signals / data, or the processor 701 controls the transmitter 703 to send signals / data, or the processor 701 requests the transmitter 703 to send signals / data, or the processor 701 cooperates with the transmitter 703 to send signals / data.

[0351] In an exemplary embodiment, a computer-readable storage medium is further provided, in which at least one program is stored. The at least one program is loaded and executed by the processor to implement the wireless communication method provided by each of the above method embodiments.

[0352] In an exemplary embodiment, a chip is further provided. The chip includes a programmable logic circuit and / or program instructions. When the chip runs on a communication device, it is used to implement the wireless communication methods provided by the above-mentioned various method embodiments.

[0353] In an exemplary embodiment, a computer program product is further provided. When the computer program product is executed on a processor of a computer device, the computer device is enabled to perform the above wireless communication method.

[0354] Those skilled in the art will appreciate that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented using hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more programs or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any media that facilitates the transmission of computer programs from one place to another. The storage medium can be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0355] The above description is merely an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A wireless communication method, characterized in that: The method is performed by a first node, and includes: The first node sends a group of signals, the group of signals including at least one first signal and at least one second signal; The first signal is sent according to the configuration information, and the second signal is sent by modulating the channel information of the first channel.

2. The method according to claim 1, characterized in that The first channel includes a channel from the second node to the first node.

3. The method according to claim 1, characterized in that The channel information of the first channel includes at least one of the following: Amplitude, phase, Doppler shift, and multipath delay.

4. The method according to any one of claims 1 to 3, characterized in that: The sequence in the first channel includes N c In the case where the sequence of the second signal includes L first sequence elements, and the sequence of the second signal includes L second sequence elements, the second signal is composed of the L second sequence elements through the N c modulate and send the channel information corresponding to all or part of the first sequence elements; Wherein, L is the sequence length of the second signal in the configuration information, N c is the number of frequency domain units corresponding to the first channel.

5. The method according to claim 4, characterized in that When L equals N c In the case of the i-th second sequence element in the L second sequence elements, the N c The channel information corresponding to the i-th sequence element in the first sequence elements is modulated and sent, where i is less than or equal to L or N c integer; When L is greater than N c In the case of at least two second sequence elements of the L second sequence elements, the N c The channel information corresponding to the jth first sequence element in the first sequence elements is modulated and sent, where j is less than or equal to N c An integer of, or, K second sequence elements in the L second sequence elements are represented by N c The channel information corresponding to the first sequence elements is modulated and sent, and K is less than or equal to N c A positive integer; When L is less than N c In the case of the L second sequence elements through the N c The channel information corresponding to M first sequence elements in the first sequence elements is modulated and sent, where M is a positive integer less than or equal to L.

6. The method according to claim 1 or 2, characterized in that The method further comprises: The configuration information is received, where the configuration information is used to configure resources of the group of signals.

7. The method according to any one of claims 1 to 6, characterized in that: The configuration information includes at least one of the following: configuration of the first signal; configuration of the second signal; The configuration includes: at least one of sequence information, port information, time domain resources, frequency domain resources, code domain resources, power information, and spatial information.

8. The method according to any one of claims 1 to 7, characterized in that: The configuration information is used to indicate at least one of the following: The sequence information of the first signal is the same as the sequence information of the second signal; The sequence information of the first signal is different from the sequence information of the second signal; The port information of the first signal is the same as the port information of the second signal; The port information of the first signal is different from the port information of the second signal; The frequency domain resource of the first signal is the same as the frequency domain resource of the second signal; The spatial information of the first signal is the same as the spatial information of the second signal; The power information of the first signal is the same as the power information of the second signal; An interval between the time domain resource of the first signal and the time domain resource of the second signal is smaller than a first threshold; The time domain resources of the first signal and the time domain resources of the second signal are the same, and the code domain resources of the first signal and the code domain resources of the second signal are different.

9. The method according to any one of claims 1 to 7, characterized in that: The configuration information includes configurations of a set of repetitive signals, and the configurations of the first signal and the second signal are determined based on the configurations of the set of repetitive signals.

10. A wireless communication method, characterized in that: The method is performed by the second node, and includes: receiving a group of signals sent by a first node, the group of signals including at least one first signal and at least one second signal; The first signal is sent by the first node according to configuration information, and the second signal is sent by the first node by modulating the channel information of the first channel.

11. The method according to claim 10, characterized in that The first channel includes a channel from the second node to the first node.

12. The method according to claim 10 or 11, characterized in that The method further comprises: Channel information of the first channel is determined based on the second signal and the first signal.

13. The method according to claim 12, characterized in that Channel information of the first channel is determined based on the second signal, the first signal, and a first operation method.

14. The method according to claim 13, characterized in that The first operation mode includes at least one of the following: dividing the first signal by the second signal; The second signal and the conjugate of the second signal are multiplied.

15. The method according to claim 12, characterized in that The channel information of the first channel includes at least one of the following: Amplitude, phase, Doppler shift, and multipath delay.

16. The method according to claim 15, characterized in that The sequence in the first channel includes N c first sequence elements, and the received sequence of the second signal includes L second sequence elements; The received second signal is composed of the L second sequence elements through the N c Channel information corresponding to all or part of the first sequence elements in the first sequence elements is modulated and sent; Wherein, L is the sequence length of the second signal, N c is the number of frequency domain units corresponding to the first channel.

17. The method according to claim 16, characterized in that When L equals N c In the case of the i-th second sequence element in the L second sequence elements, the N c The channel information modulation corresponding to the i-th sequence element in the first sequence elements, i is less than or equal to L or N c integer; When L is greater than N c In the case where at least two of the L second sequence elements are composed of the N c The channel information corresponding to the j-th first sequence element in the first sequence elements is modulated, or the K second sequence elements in the L second sequence elements are modulated by the N c The channel information corresponding to the first sequence elements is modulated, and K is less than or equal to N c A positive integer; When L is less than N c In the case where the L second sequence elements are composed of the N c The channel information corresponding to M first sequence elements in the first sequence elements is modulated, where M is a positive integer less than or equal to L.

18. The method according to any one of claims 10 to 17, characterized in that: The method further comprises: Channel information of a second channel is determined based on the first signal, wherein the second channel is a channel from the first node to the second node.

19. The method according to claim 18, characterized in that The channel information of the second channel is determined based on the first signal, a sequence of the first signal, and a second operation method.

20. The method according to claim 18, wherein The second operation mode includes at least one of the following: dividing the first signal by the sequence of the first signal; The first signal is multiplied by the sequence conjugate of the first signal.

21. The method according to claim 10 or 11, characterized in that The method further comprises: The configuration information is sent to the first node, where the configuration information is used to configure resources of the group of signals.

22. The method according to any one of claims 10 to 21, characterized in that: The configuration information includes at least one of the following: configuration of the first signal; configuration of the second signal; The configuration includes: at least one of sequence information, port information, time domain resources, frequency domain resources, code domain resources, power information, and spatial information.

23. The method according to any one of claims 10 to 22, characterized in that The configuration information is used to indicate at least one of the following: The sequence information of the first signal is consistent with the sequence information of the second signal; The sequence information of the first signal is different from the sequence information of the second signal; The port information of the first signal is the same as the port information of the second signal; The port information of the first signal is different from the port information of the second signal; The frequency domain resource of the first signal is the same as the frequency domain resource of the second signal; The spatial information of the first signal is the same as the spatial information of the second signal; The power information of the first signal is the same as the power information of the second signal; An interval between the time domain resource of the first signal and the time domain resource of the second signal is smaller than a first threshold; The time domain resources of the first signal and the time domain resources of the second signal are the same, and the code domain resources of the first signal and the code domain resources of the second signal are different.

24. The method according to any one of claims 10 to 23, characterized in that The configuration information includes configurations of a set of repetitive signals, and the configurations of the first signal and the second signal are determined based on the configurations of the set of repetitive signals.

25. A wireless communication device, characterized in that: The device comprises: A first sending module, configured to send a group of signals, where the group of signals includes at least one first signal and at least one second signal; The first signal is sent according to the configuration information, and the second signal is sent by modulating the channel information of the first channel.

26. A wireless communication device, characterized in that: The device comprises: A second receiving module, configured to receive a group of signals sent by the first node, where the group of signals includes at least one first signal and at least one second signal; The first signal is sent by the first node according to configuration information, and the second signal is sent by the first node by modulating the channel information of the first channel.

27. A communication device, characterized in that: The communication device comprises: processor; a transceiver connected to the processor; a memory for storing an executable program for the processor; The processor is configured to load and execute the executable program to implement the wireless communication method according to any one of claims 1 to 9.

28. A communication device, characterized in that: The communication device comprises: processor; a transceiver connected to the processor; a memory for storing an executable program for the processor; The processor is configured to load and execute the executable program so that the communication device implements the wireless communication method according to any one of claims 10 to 24.

29. A computer-readable storage medium, characterized in that The computer-readable storage medium stores an executable program, which is loaded and executed by a processor of the communication device to implement the wireless communication method according to any one of claims 1 to 9, or the wireless communication method according to any one of claims 10 to 24.

30. A chip, characterized in that: The chip includes a programmable logic circuit or a program, and a communication device equipped with the chip is used to implement the wireless communication method according to any one of claims 1 to 10, or the wireless communication method according to any one of claims 11 to 23.

31. A computer program product, characterized in that The computer program product includes a computer program, which is stored in a computer-readable storage medium. The processor of the communication device reads the computer program from the computer-readable storage medium, and the processor executes the computer program, so that the communication device performs the wireless communication method according to any one of claims 1 to 9, or the wireless communication method according to any one of claims 10 to 24.

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