Network-node-based ambient scatter communication method and related device

Abstract

A network-node-based ambient scatter communication method. The method is applied to a network node and comprises: determining a forwarding beam pattern set, wherein the forwarding beam pattern set comprises at least one forwarding beam pattern; and on the basis of a first data signal feature, using the at least one forwarding beam pattern to modulate a second data signal to a first data signal, and forwarding the modulated data signal to a user terminal, such that after the user terminal demodulates the modulated data signal, the first data signal and the second data signal, which is transmitted by a network node, are obtained.

Description

Environmental scattering communication method and related equipment based on network nodes

[0001] This disclosure is based on the Chinese patent application with application number 202310945586.8, application date July 28, 2023, and invention name “Environmental scattering communication method, system, device and medium based on network nodes”, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby introduced into the present disclosure as a reference. Technical Field

[0002] The present disclosure relates to the field of wireless communication technology, and in particular to a network node-based environmental scattering communication method, a network node, a user terminal, a communication system, an electronic device, a computer-readable storage medium, and a computer program product. Background Art

[0003] Intelligent Reflecting Surfaces (IRS) or Reconfigurable Intelligent Surfaces (RIS) are composed of a large number of low-cost electromagnetic units. By adjusting the parameters (such as phase) of each unit, the reflection or transmission direction of the signal incident on the smart surface can be controlled, allowing the signal to be reflected or transmitted in the desired direction. Due to its low cost, low power consumption, and easy deployment, RIS is expected to become a candidate technology for wireless communications in the sixth generation mobile network (6G) standard.

[0004] To address the spectrum and energy consumption challenges facing 6G, symbiotic scattering communication (RIS) has attracted widespread attention due to its mutually beneficial sharing of spectrum and energy. However, RIS-based symbiotic transmission communication systems are costly, power-intensive, and inefficient. Implementing environmental scattering communication based on RIS and other network nodes presents challenges.

[0005] Summary of the Invention

[0006] The present disclosure provides an environmental scattering communication method based on a network node and related equipment, which at least to a certain extent overcomes the problems of high cost and low efficiency of the symbiotic transmission communication system based on RIS in the related art.

[0007] According to one aspect of the present disclosure, a network node-based environmental scattering communication method is provided, which is applied to the network node and includes: determining a forwarding beam pattern set, wherein the forwarding beam pattern set includes at least one forwarding beam pattern; modulating a second data signal onto the first data signal using the at least one forwarding beam pattern according to a first data signal characteristic, and forwarding the modulated data signal to a user terminal, so that the user terminal demodulates the modulated data signal to obtain the first data signal and the second data signal transmitted by the network node.

[0008] In one embodiment of the present disclosure, the forwarding beam pattern set is determined by: determining an initial forwarding beam pattern, and determining the forwarding beam pattern set according to the initial forwarding beam pattern and preset parameters.

[0009] In one embodiment of the present disclosure, the forwarding beam pattern set is determined based on the initial forwarding beam pattern and preset parameters, including: determining the adjustable phase value set of the network node based on the preset parameters; superimposing the phases in the adjustable phase value set on the network node forwarding beam shaping weight matrix corresponding to the initial forwarding beam pattern to obtain the forwarding beam pattern set, wherein the forwarding beam patterns in the forwarding beam pattern set have the same beam forwarding direction.

[0010] In one embodiment of the present disclosure, the preset parameter is used to characterize the phase modulation order, and the preset parameter is determined by at least one of the following: the capability of the network node and the configuration of the network-side device.

[0011] In one embodiment of the present disclosure, the modulating the second data signal onto the first data signal using the at least one forwarding beam pattern according to the characteristics of the first data signal includes: modulating the second data signal onto the first data signal based on the forwarding beam pattern set and a preset mapping rule, wherein the preset mapping rule is used to characterize the correspondence between the second data signal and the forwarding beam pattern in the forwarding beam pattern set.

[0012] In one embodiment of the present disclosure, the first data signal characteristics include one or more of a cyclic prefix, a frame structure, a symbol period, and a symbol position.

[0013] In one embodiment of the present disclosure, one symbol period of the second data signal is one or more symbol periods of the first data signal.

[0014] In one embodiment of the present disclosure, the second data signal is modulated onto the first data signal in a phase modulation manner, and the second data signal maintains symbol synchronization with the first data signal.

[0015] In one embodiment of the present disclosure, the second data signal includes a third data signal and a fourth data signal, the third data signal is used to determine a demodulation reference of the fourth data signal, and to determine a starting position of the fourth data signal, and the fourth data signal is a data signal that the network node expects to transmit.

[0016] In one embodiment of the present disclosure, when transmitting the third data signal, all forwarding beam patterns in the forwarding beam pattern set are traversed and used at least once in a time-division manner, so that the user terminal obtains a demodulation reference for the fourth data signal.

[0017] In one embodiment of the present disclosure, the method further includes: starting from a preset number of symbol periods after a specific symbol sequence appears in the third data signal as the starting position of the fourth data signal.

[0018] According to another aspect of the present disclosure, a network node-based environmental scattering communication method is provided, which is applied to a user terminal. The method includes: receiving a data signal forwarded by the network node, the data signal including a first data signal and a second data signal, wherein the first data signal is transmitted by a network-side device, and the second data signal is a signal modulated by the network node onto the first data signal; and demodulating the data signals to obtain the first data signal transmitted by the network-side device and the second data signal transmitted by the network node.

[0019] In one embodiment of the present disclosure, the second data signal includes a third data signal and a fourth data signal, the third data signal is used to determine a demodulation reference of the fourth data signal, and is used to determine a starting position of the fourth data signal, and the fourth data signal is a data signal that the network node expects to transmit; wherein, the method further includes: comparing the phase states of adjacent data signals in units of symbol periods of the second data signal, and obtaining the third data signal characteristic when a continuous phase change exhibiting certain characteristics is detected in adjacent symbol periods, and the continuous phase change is greater than a preset first threshold.

[0020] In one embodiment of the present disclosure, the method further includes: determining a starting position of the fourth data signal according to the third data signal; and demodulating the fourth data signal based on the third data signal.

[0021] According to another aspect of the present disclosure, a network node is provided, including: a beam pattern determination module, used to determine a forwarding beam pattern set, wherein the forwarding beam pattern set includes at least one forwarding beam pattern; a data signal modulation module, used to modulate a second data signal onto the first data signal using the at least one forwarding beam pattern according to a characteristic of the first data signal, and forward the modulated data signal to a user terminal, so that the user terminal obtains the first data signal and the second data signal transmitted by the network node after demodulating the modulated data signal.

[0022] According to another aspect of the present disclosure, a user terminal is provided, including: a data receiving module, used to receive a data signal forwarded by a network node, the data signal including a first data signal and a second data signal, wherein the first data signal is transmitted by a network-side device, and the second data signal is a signal modulated by the network node onto the first data signal; a first demodulation module, used to demodulate the data signal to obtain the first data signal transmitted by the network-side device and the second data signal transmitted by the network node.

[0023] According to another aspect of the present disclosure, a communication system is provided, including a network-side device, a network node and a user terminal, wherein the network node is used to determine a forwarding beam pattern set, wherein the forwarding beam pattern set includes at least one forwarding beam pattern; according to the characteristics of the first data signal, the at least one forwarding beam pattern is used to modulate the second data signal onto the first data signal, and forward the modulated data signal to the user terminal; the user terminal is used to receive the data signal forwarded by the network node; and the data signal is demodulated to obtain the first data signal transmitted by the network-side device and the second data signal transmitted by the network node.

[0024] According to another aspect of the present disclosure, an electronic device is provided, comprising: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to perform the above-mentioned network node-based environment scattering communication method by executing the executable instructions.

[0025] According to another aspect of the present disclosure, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the computer program implements the above-mentioned network node-based environment scattering communication method.

[0026] According to another aspect of the present disclosure, a computer program product is provided, including executable instructions stored in a computer-readable storage medium. The executable instructions are read by a processor of an electronic device from the computer-readable storage medium, and the processor executes the executable instructions, so that the electronic device performs the above-mentioned network node-based environmental scattering communication method.

[0027] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification, are used to explain the principles of the present disclosure. Obviously, the drawings described below are only some embodiments of the present disclosure, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0029] FIG1 is a schematic diagram showing an exemplary system architecture of an environment scattering communication method based on network nodes according to an embodiment of the present disclosure.

[0030] FIG2 shows a flow chart of an environment scattering communication method based on a network node and applied to a network node according to an embodiment of the present disclosure.

[0031] FIG3 shows a flow chart of a method for obtaining a forwarding beam pattern set in an embodiment of the present disclosure.

[0032] FIG4 shows a flow chart of another method for obtaining a forwarding beam pattern set in an embodiment of the present disclosure.

[0033] FIG5 is a schematic diagram showing a specific example of a network node forwarding a data signal according to an embodiment of the present disclosure.

[0034] FIG6 shows a flow chart of an environment scattering communication method based on a network node and applied to a user terminal according to an embodiment of the present disclosure.

[0035] FIG7 shows a flow chart of another network node-based environment scattering communication method applied to a user terminal in an embodiment of the present disclosure.

[0036] FIG8 shows a schematic structural diagram of a network node in an embodiment of the present disclosure.

[0037] FIG9 shows a schematic structural diagram of a user terminal in an embodiment of the present disclosure.

[0038] FIG10 shows a schematic structural diagram of a communication system according to an embodiment of the present disclosure.

[0039] FIG11 shows a structural block diagram of an electronic device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0040] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0041] In addition, the accompanying drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. Identical reference numerals in the figures denote identical or similar parts, and thus repetitive descriptions thereof will be omitted. Some of the block diagrams shown in the accompanying drawings are functional entities that do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software, in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0042] FIG1 is a schematic diagram showing an exemplary system architecture of an environment scattering communication method based on a network node that can be applied to an embodiment of the present disclosure.

[0043] As shown in FIG1 , the system architecture 100 may include a network-side device 101 , a network node 102 , a network 103 and a user terminal 104 .

[0044] The network 103 is used as a medium to provide a communication link between the user terminal 104 and the network node 102, and between the network node 102 and the network-side device 101, and may be a wireless network.

[0045] In some embodiments, the wireless network described above uses standard communication technologies and / or protocols. The network is typically the Internet, but may be any network, including but not limited to a local area network (LAN), a metropolitan area network (MAN), a wide area network (WAN), a mobile, wireless network, a private network, or any combination of a virtual private network. In some embodiments, technologies and / or formats including Hypertext Markup Language (HTML), Extensible Markup Language (XML), etc. are used to represent data exchanged over the network. In addition, conventional encryption technologies such as Secure Socket Layer (SSL), Transport Layer Security (TLS), Virtual Private Network (VPN), and Internet Protocol Security (IPsec) may be used to encrypt all or some links. In other embodiments, customized and / or dedicated data communication technologies may be used to replace or supplement the above-mentioned data communication technologies.

[0046] The user terminal 104 may be various electronic devices, including but not limited to smart phones, tablet computers, laptop computers, desktop computers, wearable devices, augmented reality devices, virtual reality devices, etc.

[0047] In some embodiments, the user terminals of the applications installed on different user terminals 104 are the same, or the user terminals of the same type of applications based on different operating systems. Based on different terminal platforms, the specific form of the user terminal of the application can also be different. For example, the application client can be a mobile phone user terminal, a PC user terminal, etc.

[0048] The network node 102 can be an intelligent reflecting surface (IRS), a reconfigurable intelligent surface (RIS), an intelligent repeater or an intelligent relay device. It can intelligently adjust the wireless propagation environment between the user terminal 104 and the network side device 101 by integrating a large number of low-cost reflection / transmission elements on the plane, thereby significantly improving the performance of the wireless communication network.

[0049] The network side device 101 can be an evolved Node B (eNB), a 5G base station (gNB), or a later version of a base station, a radio network controller (RNC), a Node B (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (for example, a Home evolved NodeB, or a Home Node B, HNB), a baseband unit (BBU), a wireless fidelity (WIFI) access point (AP), a transmission point (TRP or TP), or other terms in the field. As long as the same technical effect is achieved, the network device is not limited to specific technical terms.

[0050] The network side device 101 can be a 4G base station, a 5G base station, a higher version of a base station, or a base station in other communication systems, or called a node B, an evolved node B, or a transmission reception point (TRP), or an access point (AP), or a WiFi device, or other terms in the field. As long as the same technical effect is achieved, the network side device is not limited to specific technical terms.

[0051] A symbiotic scattering communication system consists of a primary system and a secondary system. The primary system is a communication system with an active transmitting unit, such as a base station in a 5G network. The secondary system uses the primary system's spectrum and radio frequency signals to achieve passive backscatter communication, thereby sharing the primary system's spectrum, energy, and infrastructure resources. The secondary system's transmission provides additional multipath effects to the primary system, providing low-energy transmission opportunities for the secondary system while potentially improving the performance of the primary system.

[0052] Introducing network node 102, such as a RIS, into symbiotic scattering communication, with network-side device 101 serving as the primary system and network node 102 serving as the secondary system, can replace traditional reflective communication units to transmit secondary system information. Network node 102 can also leverage its controllability over the electromagnetic environment to assist in primary system information transmission. However, symbiotic transmission communication systems based on RIS in related technologies suffer from high cost, high power consumption, and low efficiency. Implementing environmental scattering communication based on network nodes such as RIS presents certain challenges.

[0053] To solve the above problem, in one embodiment, the network side device 101 transmits a first data signal to the network node 102 through the network 103; the network node 102 modulates the second data signal onto the first data signal and forwards the modulated data signal to the user terminal 104.

[0054] In one embodiment, after receiving the data signal forwarded by the network node 102, the user terminal 104 demodulates the above data signal to obtain the first data signal transmitted by the network side device 101 and the second data signal transmitted by the network node 102, thereby realizing environmental scattering communication based on the network node.

[0055] Those skilled in the art will appreciate that the number of user terminals, networks, network nodes, and network-side devices in FIG1 is merely illustrative, and any number of user terminals, networks, network nodes, and network-side devices may be provided as needed, and the present disclosure does not limit this.

[0056] Based on this, the present disclosure provides an environmental scattering communication method based on network nodes, which determines a forwarding beam pattern set having at least one forwarding beam pattern, modulates the second data signal onto the first data signal using at least one forwarding beam pattern according to the characteristics of the first data signal, and forwards the modulated data signal to the user terminal. After the user terminal demodulates the modulated data signal, it obtains the first data signal transmitted by the network side device and the second data signal transmitted by the network node. By utilizing the phase modulation characteristics of the network node, the data signal of the network node or the secondary node can be modulated on the wireless signal of the main system, which can enhance the transmission performance of the wireless signal of the main system, i.e., the network side device, to realize environmental scattering communication based on network nodes, reduce costs, reduce power consumption, and be easy to deploy, with the characteristics of high spectrum efficiency and high energy efficiency.

[0057] This exemplary implementation is described in detail below with reference to the accompanying drawings and examples.

[0058] First, embodiments of the present disclosure provide a method for ambient scattering communication based on a network node. This method can be performed by any electronic device with computing processing capabilities. In some embodiments, the method can be performed by a network node; in other embodiments, the method can be performed by a user terminal; and further, the method can be implemented through interaction between a network node and a user terminal.

[0059] FIG2 shows a flow chart of an environment scattering communication method based on a network node in an embodiment of the present disclosure. As shown in FIG2 , the environment scattering communication method based on a network node provided in an embodiment of the present disclosure is applied to a network node, and includes the following steps:

[0060] S202: Determine a forwarding beam pattern set, where the forwarding beam pattern set includes at least one forwarding beam pattern.

[0061] The above-mentioned network nodes can be reconfigurable smart surface devices, smart reflective surface devices, network control relays, wireless forwarding devices with beamforming functions, or other devices that can achieve the same functions. The network nodes are not limited to the above-mentioned specific technical terms.

[0062] In one embodiment, the aforementioned forwarding beam pattern refers to the electromagnetic field intensity distribution of the forwarding beam in space when a specific beam weight matrix is ​​used, and is a result of the beam weight matrix.

[0063] Exemplarily, the forwarding beam pattern may be an electromagnetic wave pattern having a specific reflection pattern or transmission pattern formed by adjusting electromagnetic elements, or may be an electromagnetic wave pattern having a reflection pattern or transmission pattern pointing in certain specific directions.

[0064] Exemplarily, based on the direction of the incident signal and the direction of the reflected signal incident on the network node, according to the reflection principle of the plane wave of the reflection array, an initial forwarding beam pattern can be calculated, and then based on the initial forwarding beam pattern, at least one forwarding beam pattern in the forwarding beam pattern set is determined.

[0065] It should be noted that the number of forwarding beam patterns in the forwarding beam pattern set can be determined according to actual conditions.

[0066] Beamforming uses electromagnetic wave correlation to change spatial field strength, enhancing signals in certain areas while weakening them in others. Through specific design, beams can be created that enhance signals in certain directions. In one embodiment, network nodes can control the beamforming weight matrix to generate a desired forwarding beam pattern, forwarding relevant data signals and enhancing signals in specific directions.

[0067] S204. Modulate the second data signal onto the first data signal using at least one forwarding beam pattern according to the characteristics of the first data signal, and forward the modulated data signal to the user terminal, so that the user terminal demodulates the modulated data signal to obtain the first data signal and the second data signal transmitted by the network node.

[0068] In one embodiment, the second data signal is modulated onto the first data signal in a phase-modulated manner. That is, during data signal transmission, the network-side device transmits the first data signal, which is then forwarded to the user terminal via a network node. When the network node forwards the first data signal, it simultaneously superimposes the second data signal.

[0069] It should be noted that the network node does not need to obtain the specific content of the first data signal, but only superimposes the second data signal when forwarding the first data signal, using the first data signal as the carrier of the second data signal. The above phase superposition operation is an operation on the beamforming weight matrix.

[0070] It should be noted that the second data signal needs to maintain symbol synchronization with the first data signal so that the user terminal can accurately demodulate the received data signal.

[0071] The first data signal may be a data signal transmitted by a network-side device, and the second data signal may be a data signal transmitted by a network node.

[0072] The first data signal feature may include at least one of the following: a cyclic prefix, a frame structure, a symbol period, a symbol position, etc. The cyclic prefix is ​​formed by copying the signal at the end of an Orthogonal Frequency Division Multiplexing (OFDM) symbol to the beginning, thereby ensuring subcarrier orthogonality; a frame is composed of parts that perform different functions to facilitate signal transmission; a symbol period is the duration of an OFDM symbol; and a symbol position is used to determine the location of a symbol in a data signal.

[0073] It should be noted that one symbol period of the second data signal is equal to one or more symbol periods of the first data signal. For example, one symbol period of the second data signal is twice the symbol period of the first data signal.

[0074] In an embodiment of the present disclosure, a forwarding beam pattern set having at least one forwarding beam pattern is determined, and based on the characteristics of the first data signal, at least one forwarding beam pattern is used to modulate the second data signal onto the first data signal, and the modulated data signal is forwarded to the user terminal. After the user terminal demodulates the modulated data signal, a first data signal transmitted by the network-side device and a second data signal transmitted by the network node are obtained. By utilizing the phase modulation characteristics of the network node, the data signal of the network node or the secondary node can be modulated on the wireless signal of the main system, which can enhance the transmission performance of the wireless signal of the main system, i.e., the network-side device, and realize environmental scattering communication based on the network node, thereby reducing costs, reducing power consumption, facilitating deployment, and having the characteristics of high spectrum efficiency and high energy efficiency.

[0075] Figure 3 shows a flow chart of a method for obtaining a forwarding beam pattern set in an embodiment of the present disclosure. As shown in Figure 3, in one embodiment, the forwarding beam pattern set is determined by the following method: S302: Determine an initial forwarding beam pattern, and determine a forwarding beam pattern set based on the initial forwarding beam pattern and preset parameters.

[0076] In one embodiment, the initial forwarding beam pattern can be calculated based on the direction of the incident signal and the direction of the reflected signal according to the reflection principle of the plane wave of the reflection array.

[0077] The above-mentioned preset parameters refer to the phase modulation order, and the preset parameters can be determined according to actual conditions. The above-mentioned preset parameters can be determined by the following methods: the capabilities of the network nodes and the configuration of the network side equipment.

[0078] The capability of a network node represents the phase modulation order that the network node can support; the configuration of a network-side device is used to represent the phase modulation order that the network-side device configures the network node with.

[0079] It should be noted that when a network device configures a phase modulation order for a network node, the network node determines the preset parameter based on the configuration of the network device. For example, if the network node supports a phase modulation order of 4 and the network device configures the network node to use a phase modulation order of 2, the preset parameter can be 2.

[0080] In one embodiment, the network node may determine a forwarding beam pattern set based on the first parameter and the initial forwarding beam pattern, and use at least one forwarding beam pattern in the forwarding beam pattern set to modulate the second data signal onto the first data signal in a phase-modulated manner based on the first data signal characteristics.

[0081] In the embodiment of the present disclosure, a forwarding beam pattern set is determined based on the pre-configured phase modulation order of the network node and the initial forwarding beam pattern, thereby introducing the network node into the symbiotic scattering communication system, realizing environmental scattering communication based on the network node, and improving spectrum efficiency and energy efficiency.

[0082] FIG4 shows a flow chart of another method for obtaining a forwarding beam pattern set in an embodiment of the present disclosure. As shown in FIG4 , in one embodiment, the above S302 determines the forwarding beam pattern set based on the initial forwarding beam pattern and preset parameters, including:

[0083] S3022. Determine a set of adjustable phase values ​​of the network node according to preset parameters.

[0084] S3024: Superimpose phases in the adjustable phase value set on the network node forwarding beamforming weight matrix corresponding to the initial forwarding beam pattern to obtain a forwarding beam pattern set, wherein the forwarding beam patterns in the forwarding beam pattern set have the same beam forwarding direction.

[0085] For example, each forwarding unit of a network node can perform a 2-bit phase modulation order, which can produce four phase changes. In this case, the network node's adjustable phase value set ψ, ψ = {0, π / 2, π, 3π / 2}. When each forwarding unit of a network node can perform a 3-bit phase modulation order, eight phase changes can be produced. In this case, the network node's adjustable phase value set ψ = {0, π / 4, π / 2, 3π / 4, π, 5π / 4, 3π / 2, 7π / 4}.

[0086] For the initial forwarding beam pattern, it is assumed that the forwarding beamforming weight matrix composed of the reflection phase of each forwarding unit of the network node is [θ i,j ], where θ i,j is the forwarding beamforming weight of the forwarding unit in row i and column j. For simplicity, the dimensions of the forwarding beamforming weight matrix are omitted. By adding each phase value in the adjustable phase value set ψ to all forwarding beamforming weights, at least one forwarding beam pattern can be formed.

[0087] For example, in the forward beamforming weight matrix [θ i,j ], the phase value of the adjustable phase value set ψ={0,π / 2,π,3π / 2} can be added to form 4 forwarding beam patterns, and then the forwarding beam pattern set Φ={[θ i,j ],[θ i,j +π / 2],[θ i,j +π],[θ i,j Each forwarding beam pattern in the forwarding beam pattern set has the same beam forwarding direction, but there is a phase difference between any two forwarding beam patterns.

[0088] In one embodiment, the above S204 uses at least one forwarding beam pattern to modulate the second data signal onto the first data signal according to the characteristics of the first data signal, including: based on a forwarding beam pattern set and a preset mapping rule, modulating the second data signal onto the first data signal, wherein the preset mapping rule is used to characterize the correspondence between the second data signal and the forwarding beam pattern in the forwarding beam pattern set.

[0089] In the case where each forwarding unit of the network node can perform a 2-bit phase modulation order, the bit information set A of the second data signal that the network node can transmit includes 4 types, A = {00, 01, 11, 10}, and the elements in the bit information set A can be corresponded one-to-one with the forwarding beam patterns in the forwarding beam pattern set to construct the above-mentioned preset mapping relationship, and the above-mentioned preset mapping relationship can be pre-configured in the network node.

[0090] The network node determines the forwarding beam pattern corresponding to the bit information of the second data signal to be transmitted based on the preset mapping relationship, thereby modulating the second data signal onto the first data signal.

[0091] In the embodiment of the present disclosure, by constructing a preset mapping rule, a correspondence between the second data signal and the forwarding beam pattern in the forwarding beam pattern set is established, so as to quickly and conveniently determine the forwarding beam pattern and improve the forwarding efficiency of the network node.

[0092] In one embodiment, the second data signal includes a third data signal and a fourth data signal, the third data signal is used to determine a demodulation reference of the fourth data signal and a starting position of the fourth data signal, and the fourth data signal is a data signal that the network node expects to transmit.

[0093] The third data signal refers to a packet header signal, and the third data signal is also used by the user terminal to detect and determine whether the second data signal is currently being transmitted.

[0094] It should be noted that, when transmitting the third data signal, all forwarding beam patterns in the forwarding beam pattern set are traversed and used at least once in a time-division manner, so that the user terminal obtains a demodulation reference for the fourth data signal.

[0095] All forwarding beam patterns in the forwarding beam pattern set can be traversed and used 2 to 3 times to effectively prevent the occurrence of missed transmissions and decryption failures.

[0096] In one embodiment, the method further includes: starting from a preset number of symbol periods after a specific symbol sequence appears in the third data signal as the starting position of the fourth data signal.

[0097] The above-mentioned specific symbol sequence may be formed according to a preset rule by at least one forwarding beam pattern in the forwarding beam pattern set.

[0098] The number of forwarding beam patterns in a specific symbol sequence is less than the total number of forwarding beam patterns. For example, if the forwarding beam pattern set includes 4 forwarding beam patterns, the number of specific symbol sequences can be 1, 2, or 3.

[0099] Exemplarily, the aforementioned preset number may be pre-configured in the network node and used to represent the number of times a specific symbol sequence appears continuously.

[0100] Exemplarily, when the forwarding beam pattern set includes 3 or more forwarding beam patterns, one or two forwarding beam patterns may be selected as a specific sequence. For example, two forwarding beam patterns may be selected to appear consecutively for a preset number of times in a preset order.

[0101] In one possible implementation, as shown in FIG5 , a forwarding beam pattern set Φ = {Θ1, Θ2}, where the phase change introduced by forwarding beam pattern Θ1 is θ1, and the phase change introduced by forwarding beam pattern Θ2 is θ2. During the first four symbol periods of the second data signal transmission, two forwarding beam patterns in the forwarding beam pattern set are traversed and used twice to serve as demodulation references for the fourth data signal, thereby improving reception performance.

[0102] Then, three forwarding beam patterns Θ1 are transmitted, and the first symbol period thereafter is the starting position of the fourth data signal, that is, the specific sequence representing the beginning of the fourth data signal is three consecutive repeated forwarding beam patterns.

[0103] In the embodiment of the present disclosure, the third data signal is transmitted according to a preset rule, so that the demodulation reference of the fourth data signal, the starting position of the fourth data signal, etc. can be determined by the third data signal, which facilitates demodulation.

[0104] FIG6 shows a flow chart of a network node-based environment scattering communication method applied to a user terminal according to an embodiment of the present disclosure. As shown in FIG6 , the network node-based environment scattering communication method provided in an embodiment of the present disclosure, applied to a user terminal, includes the following steps:

[0105] S602: Receive a data signal forwarded by a network node, where the data signal includes a first data signal and a second data signal. The first data signal is transmitted by a network-side device, and the second data signal is a signal modulated onto the first data signal by the network node.

[0106] S604: Demodulate the data signal to obtain a first data signal transmitted by the network-side device and a second data signal transmitted by the network node.

[0107] In one embodiment, after receiving the data signal or channel information forwarded by the network node, the user terminal uses a first demodulation method to demodulate the first data signal, wherein the first demodulation method may be maximum likelihood detection, which is not specifically limited in this disclosure.

[0108] The user terminal may use the demodulated first data signal to estimate the data signal or channel information, such as least squares estimation, to improve the accuracy of channel estimation. The method of channel estimation is not specifically limited in this disclosure.

[0109] In the embodiment of the present disclosure, by demodulating the received data signal forwarded by the network device node, a first data signal transmitted by the network side device and a second data signal transmitted by the network node are obtained, thereby realizing environmental scattering communication based on the network node, reducing costs, reducing power consumption, and improving spectrum efficiency and energy efficiency.

[0110] It should be noted that the second data signal includes a third data signal and a fourth data signal. The third data signal is used to determine the demodulation reference of the fourth data signal and the starting position of the fourth data signal. The fourth data signal is the data signal that the network node expects to transmit.

[0111] FIG7 illustrates a flow chart of another network node-based ambient scattering communication method applied to a user terminal according to an embodiment of the present disclosure. As shown in FIG7 , in one embodiment, the network node-based ambient scattering communication method provided by an embodiment of the present disclosure further includes: S702: comparing phase states of adjacent data signals in units of symbol periods of the second data signal; and obtaining a third data signal characteristic when a continuous phase change exhibiting a certain characteristic is detected in adjacent symbol periods, and the continuous phase change is greater than a preset first threshold.

[0112] In one embodiment, the phase difference detected in adjacent periods exceeds a preset first threshold, which is the phase average of n symbol periods before the current symbol period, where n is a positive integer and can be determined according to actual conditions.

[0113] Exemplarily, the preset first threshold can be configured as 30°. For example, within 5 consecutive symbol periods, the phase differences between adjacent channels are 0, 0, 45°, 90°, 45°, and 90°, respectively. Then, the third data signal characteristic is 45° representing the first symbol characteristic, and 90° representing the second symbol characteristic.

[0114] Continuing to refer to FIG. 7 , in one embodiment, the method further includes: S704 , determining a starting position of a fourth data signal according to the third data signal; and demodulating the fourth data signal based on the third data signal.

[0115] In one embodiment, when it is detected that a specific symbol sequence appears in the third data signal for a preset number of symbol periods, a forwarding beam pattern set may be obtained according to a forwarding beam pattern preceding the specific symbol sequence.

[0116] Starting from a preset number of symbol periods after a specific symbol sequence, the fourth data signal is used as the starting position, and each symbol of the fourth data signal is compared with each forwarding beam pattern in the above-mentioned forwarding beam pattern set to determine the forwarding beam pattern corresponding to each symbol of the fourth data signal. According to the preset mapping rule, the bit information corresponding to the forwarding beam pattern is determined, and the bit information transmitted by the network node can be determined.

[0117] In an embodiment of the present disclosure, by comparing the phase states of adjacent data signals using the symbol period of the second data signal as a unit, a third data signal characteristic is obtained when a continuous phase change exhibiting a certain characteristic is detected in adjacent symbol periods, and the continuous phase change is greater than a preset first threshold. Based on the third data signal, the starting position of the fourth data signal is determined, and the fourth data signal is demodulated based on the third data signal, thereby improving the demodulation accuracy of the third and fourth data signals and realizing environmental scattering communication based on network nodes.

[0118] Based on the same inventive concept, the embodiments of the present disclosure further provide a network node, a user terminal, and a communication system, as described in the following embodiments. Since the principles for solving the problems in the embodiments of the network node, user terminal, and communication system are similar to those in the above-described method embodiments, the implementation of the embodiments of the network node, user terminal, and communication system can refer to the implementation of the above-described method embodiments, and any repetitions will not be repeated.

[0119] FIG8 shows a schematic diagram of a network node in an embodiment of the present disclosure. As shown in FIG8 , the network node includes: a beam pattern determination module 801 and a data signal modulation module 802 .

[0120] The beam pattern determination module 801 is configured to determine a forwarding beam pattern set, wherein the forwarding beam pattern set includes at least one forwarding beam pattern;

[0121] The data signal modulation module 802 is used to modulate the second data signal onto the first data signal using at least one forwarding beam pattern according to the characteristics of the first data signal, and forward the modulated data signal to the user terminal, so that the user terminal can obtain the first data signal and the second data signal transmitted by the network node after demodulating the modulated data signal.

[0122] In one embodiment, the beam pattern determination module 801 is configured to determine the forwarding beam pattern set by: determining an initial forwarding beam pattern, and determining the forwarding beam pattern set according to the initial forwarding beam pattern and preset parameters.

[0123] In one embodiment, the beam pattern determination module 801 is used to determine a set of adjustable phase values ​​of a network node based on preset parameters; the phases in the set of adjustable phase values ​​are superimposed on the network node forwarding beam forming weight matrix corresponding to the initial forwarding beam pattern to obtain a forwarding beam pattern set, and the forwarding beam patterns in the forwarding beam pattern set have the same beam forwarding direction.

[0124] It should be noted that the preset parameter is used to characterize the phase modulation order, and the preset parameter is determined by at least one of the following: the capability of the network node and the configuration of the network-side device.

[0125] In one embodiment, the data signal modulation module 802 is used to modulate the second data signal onto the first data signal based on the forwarding beam pattern set and a preset mapping rule, wherein the preset mapping rule is used to characterize the correspondence between the second data signal and the forwarding beam pattern in the forwarding beam pattern set.

[0126] It should be noted that the first data signal characteristics include one or more of a cyclic prefix, a frame structure, a symbol period, and a symbol position.

[0127] It should be noted that one symbol period of the second data signal is one or more symbol periods of the first data signal.

[0128] It should be noted that the second data signal is modulated onto the first data signal in a phase modulation manner, and the second data signal maintains symbol synchronization with the first data signal.

[0129] It should be noted that the second data signal includes a third data signal and a fourth data signal. The third data signal is used to determine the demodulation reference of the fourth data signal and the starting position of the fourth data signal. The fourth data signal is the data signal that the network node expects to transmit.

[0130] In one embodiment, the data signal modulation module 802 is configured to traverse and use all forwarding beam patterns in the forwarding beam pattern set at least once in a time-division manner when transmitting the third data signal, so that the user terminal obtains a demodulation reference for the fourth data signal.

[0131] It should be noted that the fourth data signal starts from a preset number of symbol periods after a specific symbol sequence appears in the third data signal.

[0132] FIG9 shows a schematic diagram of a user terminal according to an embodiment of the present disclosure. As shown in FIG9 , in one embodiment, a user terminal provided by an embodiment of the present disclosure includes:

[0133] The data receiving module 901 is configured to receive a data signal forwarded by a network node, the data signal including a first data signal and a second data signal, wherein the first data signal is transmitted by a network-side device, and the second data signal is a signal modulated by the network node onto the first data signal;

[0134] The first demodulation module 902 is configured to demodulate the data signal to obtain a first data signal transmitted by the network-side device and a second data signal transmitted by the network node.

[0135] It should be noted that the second data signal includes a third data signal and a fourth data signal. The third data signal is used to determine the demodulation reference of the fourth data signal and the starting position of the fourth data signal. The fourth data signal is the data signal that the network node expects to transmit.

[0136] In one embodiment, referring to Figure 9, the user terminal also includes a second data demodulation module 903, which is used to compare the phase states of adjacent data signals in units of symbol periods of the second data signal, and obtain third data signal characteristics when continuous phase changes showing certain characteristics are detected in adjacent symbol periods, and the continuous phase changes are greater than a preset first threshold; determine the starting position of the fourth data signal based on the third data signal; and demodulate the fourth data signal based on the third data signal.

[0137] FIG10 shows a schematic diagram of a communication system according to an embodiment of the present disclosure. As shown in FIG10 , in one embodiment, a communication system provided by an embodiment of the present disclosure includes a network side device 101, a network node 102 and a user terminal 104, wherein:

[0138] The network node 102 is configured to determine a forwarding beam pattern set, wherein the forwarding beam pattern set includes at least one forwarding beam pattern; modulate the second data signal onto the first data signal using the at least one forwarding beam pattern according to a characteristic of the first data signal, and forward the modulated data signal to the user terminal;

[0139] The user terminal 104 is configured to receive a data signal forwarded by the network node 102 and demodulate the data signal to obtain a first data signal transmitted by the network-side device 101 and a second data signal transmitted by the network node 102 .

[0140] Those skilled in the art will appreciate that various aspects of the present disclosure may be implemented as systems, methods, or program products. Therefore, various aspects of the present disclosure may be implemented in the following forms: a complete hardware implementation, a complete software implementation (including firmware, microcode, etc.), or a combination of hardware and software implementations, which may be collectively referred to herein as "circuits," "modules," or "systems."

[0141] The electronic device 1100 according to this embodiment of the present disclosure is described below with reference to Figure 11. The electronic device 1100 shown in Figure 11 is merely an example and should not limit the functions and scope of use of the embodiments of the present disclosure.

[0142] As shown in Figure 11, electronic device 1100 is implemented as a general-purpose computing device. Components of electronic device 1100 may include, but are not limited to, the aforementioned at least one processing unit 1110, the aforementioned at least one storage unit 1120, and a bus 1130 connecting various system components (including storage unit 1120 and processing unit 1110).

[0143] The storage unit stores program codes, which can be executed by the processing unit 1110, so that the processing unit 1110 executes the steps according to various exemplary embodiments of the present disclosure described in the above “Exemplary Method” section of this specification.

[0144] Exemplarily, the processing unit 1110 can perform the following steps of the method embodiment as shown in Figure 2: determine a forwarding beam pattern set, wherein the forwarding beam pattern set includes at least one forwarding beam pattern; modulate the second data signal onto the first data signal using at least one forwarding beam pattern according to the characteristics of the first data signal, and forward the modulated data signal to the user terminal, so that the user terminal demodulates the modulated data signal to obtain the first data signal and the second data signal transmitted by the network node.

[0145] Exemplarily, the processing unit 1110 can execute the following steps of the method embodiment as shown in Figure 6: receiving a data signal forwarded by a network node, the data signal including a first data signal and a second data signal, wherein the first data signal is transmitted by a network side device, and the second data signal is a signal modulated onto the first data signal by the network node; demodulating the data signal to obtain the first data signal transmitted by the network side device and the second data signal transmitted by the network node.

[0146] The storage unit 1120 may include a readable medium in the form of a volatile storage unit, such as a random access memory unit (RAM) 11201 and / or a cache memory unit 11202 , and may further include a read-only memory unit (ROM) 11203 .

[0147] The storage unit 1120 may also include a program / utility 11204 having a set (at least one) of program modules 11205, such program modules 11205 including but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment.

[0148] The bus 1130 may represent one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

[0149] Electronic device 1100 may also communicate with one or more external devices 1140 (e.g., a keyboard, pointing device, Bluetooth device, etc.), one or more devices that enable a user to interact with electronic device 1100, and / or any device that enables electronic device 1100 to communicate with one or more other computing devices (e.g., a router, modem, etc.). Such communication may occur via input / output (I / O) interface 1150. Furthermore, electronic device 1100 may also communicate with one or more networks (e.g., a local area network (LAN), a wide area network (WAN), and / or a public network such as the Internet) via network adapter 1160. As shown, network adapter 1160 communicates with other modules of electronic device 1100 via bus 1130. It should be understood that, although not shown in the figure, other hardware and / or software modules may be used in conjunction with electronic device 1100, including but not limited to microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0150] Through the description of the above embodiments, it is easy for those skilled in the art to understand that the example embodiments described herein can be implemented by software or by combining software with necessary hardware. Therefore, the technical solution according to the embodiments of the present disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which can be a personal computer, a server, a terminal device, or a network device, etc.) to execute the method according to the embodiments of the present disclosure.

[0151] In particular, according to an embodiment of the present disclosure, the process described above with reference to the flowchart may be implemented as a computer program product, which includes: a computer program, which implements the above method when executed by a processor.

[0152] In an exemplary embodiment of the present disclosure, a computer-readable storage medium is also provided, which may be a readable signal medium or a readable storage medium. The computer-readable storage medium stores a program product capable of implementing the above-mentioned method of the present disclosure. In some possible implementations, various aspects of the present disclosure may also be implemented in the form of a program product, which includes program code. When the program product is executed on a user terminal, the program code is used to cause the user terminal to execute the steps according to various exemplary embodiments of the present disclosure described in the "Exemplary Methods" section above of this specification.

[0153] More specific examples of computer-readable storage media in the present disclosure may include, but are not limited to, an electrical connection having one or more conductors, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), optical fibers, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0154] In the present disclosure, a computer-readable storage medium may include a data signal propagated in baseband or as part of a carrier wave, which carries readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A readable signal medium may also be any readable medium other than a readable storage medium that can transmit, propagate, or transfer a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0155] In some embodiments, the program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

[0156] In a specific implementation, the program code for performing the operations of the present disclosure may be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Java, C++, and the like, as well as conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computing device, partially on the user's device, as a standalone software package, partially on the user's computing device and partially on a remote computing device, or entirely on a remote computing device or server. In the case of a remote computing device, the remote computing device may be connected to the user's computing device via any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computing device (e.g., via the Internet using an Internet service provider).

[0157] It should be noted that although several modules or units of the device for action execution are mentioned in the detailed description above, this division is not mandatory. In fact, according to the embodiments of the present disclosure, the features and functions of two or more modules or units described above can be concretized in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided into multiple modules or units to be concretized.

[0158] Furthermore, although the steps of the method of the present disclosure are described in a particular order in the accompanying drawings, this does not require or imply that the steps must be performed in this particular order, or that all steps shown must be performed to achieve the desired results. Additionally or alternatively, some steps may be omitted, multiple steps may be combined into one step, and / or one step may be decomposed into multiple steps.

[0159] Through the description of the above embodiments, it is easy for those skilled in the art to understand that the example embodiments described herein can be implemented by software or by combining software with necessary hardware. Therefore, the technical solution according to the embodiments of the present disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which can be a personal computer, a server, a mobile terminal, or a network device, etc.) to execute the method according to the embodiments of the present disclosure.

[0160] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the appended claims.

Claims

1. An environmental scattering communication method based on network nodes, wherein: Applied to network nodes, including: Determine a forwarding beam pattern set, wherein the forwarding beam pattern set includes at least one forwarding beam pattern; According to the characteristics of the first data signal, the second data signal is modulated onto the first data signal using the at least one forwarding beam pattern, and the modulated data signal is forwarded to the user terminal, so that after the user terminal demodulates the modulated data signal, it obtains the first data signal and the second data signal transmitted by the network node.

2. The method for environmental scattering communication based on network nodes according to claim 1, wherein: The forwarding beam pattern set is determined by: An initial forwarding beam pattern is determined, and the forwarding beam pattern set is determined according to the initial forwarding beam pattern and preset parameters.

3. The method for environmental scattering communication based on network nodes according to claim 2, wherein: The determining the forwarding beam pattern set according to the initial forwarding beam pattern and preset parameters includes: Determining a set of adjustable phase values ​​of the network node according to the preset parameters; The phases in the adjustable phase value set are respectively superimposed on the network node forwarding beamforming weight matrix corresponding to the initial forwarding beam pattern to obtain the forwarding beam pattern set, wherein the forwarding beam patterns in the forwarding beam pattern set have the same beam forwarding direction.

4. The method for environmental scattering communication based on network nodes according to claim 2, wherein: The preset parameter is used to characterize the phase modulation order, and the preset parameter is determined by at least one of the following: the capability of the network node and the configuration of the network side device.

5. The method for environmental scattering communication based on network nodes according to claim 1, wherein: The step of modulating the second data signal onto the first data signal using the at least one forwarding beam pattern according to the first data signal characteristic includes: Based on the forwarding beam pattern set and a preset mapping rule, the second data signal is modulated onto the first data signal, wherein the preset mapping rule is used to characterize the correspondence between the second data signal and the forwarding beam pattern in the forwarding beam pattern set.

6. The method for environmental scattering communication based on network nodes according to claim 1, wherein: The first data signal characteristics include one or more of a cyclic prefix, a frame structure, a symbol period, and a symbol position.

7. The method for environmental scattering communication based on network nodes according to claim 6, wherein: One symbol period of the second data signal is one or more symbol periods of the first data signal.

8. The method for environmental scattering communication based on network nodes according to claim 6, wherein: The second data signal is modulated onto the first data signal in a phase modulation manner, and the second data signal maintains symbol synchronization with the first data signal.

9. The method for environmental scattering communication based on network nodes according to claim 1, wherein: The second data signal includes a third data signal and a fourth data signal, the third data signal is used to determine a demodulation reference of the fourth data signal and a starting position of the fourth data signal, and the fourth data signal is a data signal that the network node expects to transmit.

10. The method for environmental scattering communication based on network nodes according to claim 9, wherein: When transmitting the third data signal, all the forwarding beam patterns in the forwarding beam pattern set are traversed and used at least once in a time division manner, so that the user terminal obtains a demodulation reference for the fourth data signal.

11. The method for environmental scattering communication based on network nodes according to claim 9, wherein: The method further comprises: The start position of the fourth data signal is a preset number of symbol periods after a specific symbol sequence appears in the third data signal.

12. An environmental scattering communication method based on network nodes, wherein: Applied to a user terminal, the method comprises: Receive a data signal forwarded by a network node, the data signal comprising a first data signal and a second data signal, wherein the first data signal is transmitted by a network-side device, and the second data signal is a signal modulated by the network node onto the first data signal; The data signal is demodulated to obtain the first data signal transmitted by the network side device and the second data signal transmitted by the network node.

13. The method for environmental scattering communication based on network nodes according to claim 12, wherein: The second data signal includes a third data signal and a fourth data signal, the third data signal is used to determine a demodulation reference of the fourth data signal and a starting position of the fourth data signal, and the fourth data signal is a data signal that the network node expects to transmit; Wherein, the method further comprises: The phase states of adjacent data signals are compared in units of symbol periods of the second data signal, and when continuous phase changes showing certain characteristics are detected in adjacent symbol periods and the continuous phase changes are greater than a preset first threshold, the third data signal characteristics are obtained.

14. The method for environmental scattering communication based on network nodes according to claim 13, wherein: The method further comprises: Determining a starting position of the fourth data signal according to the third data signal; The fourth data signal is demodulated based on the third data signal.

15. A network node, wherein: include: A beam pattern determination module, configured to determine a forwarding beam pattern set, wherein the forwarding beam pattern set includes at least one forwarding beam pattern; A data signal modulation module, configured to adopt the at least one forwarding beam pattern according to the first data signal characteristic The second data signal is modulated onto the first data signal, and the modulated data signal is forwarded to the user terminal, so that the user terminal demodulates the modulated data signal to obtain the first data signal and the second data signal transmitted by the network node.

16. A user terminal, wherein: include: A data receiving module, configured to receive a data signal forwarded by a network node, wherein the data signal includes a first data signal and a second data signal, wherein the first data signal is transmitted by a network-side device, and the second data signal is a signal modulated by the network node onto the first data signal; The first demodulation module is used to demodulate the data signal to obtain the first data signal transmitted by the network side device and the second data signal transmitted by the network node.

17. A communication system, wherein: It includes network side equipment, network nodes and user terminals, among which: The network node is configured to determine a forwarding beam pattern set, wherein the forwarding beam pattern set includes at least one forwarding beam pattern; modulate a second data signal onto the first data signal using the at least one forwarding beam pattern according to a feature of the first data signal, and forward the modulated data signal to the user terminal; The user terminal is used to receive the data signal forwarded by the network node; demodulate the data signal to obtain a first data signal transmitted by the network side device and a second data signal transmitted by the network node.

18. An electronic device, wherein: include: processor; as well as A memory, configured to store executable instructions of the processor; The processor is configured to execute the environment scattering communication method based on a network node as described in any one of claims 1 to 11, or execute the environment scattering communication method based on a network node as described in any one of claims 12 to 14 by executing the executable instructions.

19. A computer-readable storage medium having a computer program stored thereon, wherein: When the computer program is executed by a processor, the environment scattering communication method based on a network node according to any one of claims 1 to 11 is implemented, or the environment scattering communication method based on a network node according to any one of claims 12 to 14 is implemented.

20. A computer program product comprising a computer program, wherein: When the computer program is executed by a processor, the environment scattering communication method based on a network node according to any one of claims 1 to 11 is implemented, or the environment scattering communication method based on a network node according to any one of claims 12 to 14 is implemented.

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