Node identification method, apparatus, device, and readable storage medium

Abstract

This application discloses a node identification method, apparatus, device, and readable storage medium. The method includes: acquiring first information, the first information being related to a signal transmitted by a base station; and determining one or more nodes associated with the base station based on the first information. In embodiments of this application, a terminal can identify one or more nodes associated with a base station, assisting the base station in more accurately adjusting the beam of each node, thereby improving the signal strength of the terminal or improving the positioning accuracy based on multiple nodes.

Description

Technical Field

[0001] This application belongs to the field of communication technology, and specifically relates to a method, apparatus, device and readable storage medium for identifying nodes. Background Technology

[0002] Smart surface devices consist of a large-scale device array and an array control module. The large-scale device array comprises a large number of device units arranged in a regular, repeating pattern on a planar substrate. To achieve significant signal manipulation, hundreds or thousands of device units are typically required to form the array. Each device unit has a variable structure; for example, it may contain a positive-intrinsic-negative (PIN) diode, whose switching state determines the unit's response to external wireless signals. The array control module of the smart surface can control the operating state of each device unit, thereby dynamically or semi-statically controlling its response to wireless signals. The wireless response signals of each device unit in the large-scale device array superimpose to form specific beam propagation characteristics on a macroscopic scale. The control module is the "brain" of the smart surface device, determining the wireless signal response beam of the smart surface according to the needs of the communication system, making the originally static communication environment "intelligent" and "controllable."

[0003] Currently, how terminals can identify nodes associated with base stations is a problem that urgently needs to be solved. Summary of the Invention

[0004] This application provides a node identification method, apparatus, device, and readable storage medium, which enables a terminal to identify nodes associated with a base station.

[0005] Firstly, a node identification method is provided, executed by a terminal, including:

[0006] Obtain first information, which is related to the signal sent by the base station;

[0007] Based on the first information, determine one or more nodes associated with the base station;

[0008] The node includes at least one of the following:

[0009] Reconfigurable smart surface nodes;

[0010] Relay node;

[0011] IAB node.

[0012] Secondly, a node identification method is provided, executed by the node, including:

[0013] To change or control the characteristics of a first signal transmitted by a base station associated with the node;

[0014] The characteristic change information of the first signal is associated with the information of the node.

[0015] Thirdly, a node identification method is provided, executed by a base station, including:

[0016] A second signal is sent to a first node associated with the base station, and the relevant information of the second signal corresponds to that of the first node.

[0017] Thirdly, a node identification device is provided, comprising:

[0018] The first acquisition module is used to acquire first information, which is related to the signal sent by the base station.

[0019] The first determining module is used to determine one or more nodes associated with the base station based on the first information;

[0020] The node includes at least one of the following:

[0021] Reconfigurable smart surface nodes;

[0022] Relay node;

[0023] IAB node.

[0024] Fourthly, a node identification device is provided, comprising:

[0025] A processing module for changing or controlling the characteristics of a first signal transmitted by a base station associated with the node;

[0026] The characteristic change information of the first signal is associated with the information of the node.

[0027] Fifthly, a node identification device is provided, comprising:

[0028] The fourth transmitting module is used to transmit a second signal to the first node associated with the base station, wherein the relevant information of the second signal corresponds to that of the first node.

[0029] A sixth aspect provides a terminal comprising: a processor, a memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, performs the steps of the method described in the first aspect.

[0030] A seventh aspect provides a network-side device, comprising: a processor, a memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, implements the steps of the method as described in the second or third aspect.

[0031] Eighthly, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method as described in the first, second, or third aspect.

[0032] A ninth aspect provides a program product stored in a non-volatile storage medium, the program product being executed by at least one processor to implement the steps of the processing method as described in the first, second, or third aspect.

[0033] In a tenth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run programs or instructions to implement the processing methods described in the first, second, or third aspects.

[0034] In this embodiment, the terminal can identify one or more nodes associated with the base station, assisting the base station in more accurately adjusting the beam of each node, thereby improving the strength of the terminal signal or improving the positioning accuracy based on multiple nodes. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the SSB in NR;

[0036] Figure 2 This is a block diagram of a wireless communication system applicable to embodiments of this application;

[0037] Figure 3 This is one of the schematic diagrams of the node identification method in the embodiments of this application;

[0038] Figure 4 This is a second schematic diagram of the node identification method in the embodiments of this application;

[0039] Figure 5 This is one of the schematic diagrams of the node identification method in the embodiments of this application;

[0040] Figure 6 This is a schematic diagram of a scenario in which a node is used for relay in an embodiment of this application;

[0041] Figure 7a and Figure 7b This is a schematic diagram illustrating how the UE determines the features carried by SSB1 / SSB2 by detecting the phase change features carried by SSB in an embodiment of this application.

[0042] Figure 8 In this embodiment of the application, the signals sent by the base station to different nodes carry node information;

[0043] Figure 9This is one of the schematic diagrams of the node identification device in the embodiments of this application;

[0044] Figure 10 This is a second schematic diagram of the node identification device in the embodiments of this application;

[0045] Figure 11 This is a second schematic diagram of the node identification device in the embodiments of this application;

[0046] Figure 12 This is a schematic diagram of the terminal in an embodiment of this application;

[0047] Figure 13 This is a schematic diagram of the network-side device in an embodiment of this application. Detailed Implementation

[0048] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0049] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and are not used to describe a specified order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0050] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. However, the following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description, although these technologies can also be applied to applications other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0051] To facilitate understanding of the embodiments of this application, the following technical points are introduced first:

[0052] I. Smart Surfaces / Metamaterial Surfaces:

[0053] Smart surfaces are an emerging technology with several related terms, all referring to similar technologies or entities. These terms include:

[0054] Large Intelligent Surface (LIS);

[0055] Smart Reflect Array (SRA);

[0056] Configurable Reflect Array (RRA);

[0057] Intelligent Reflecting Surface (IRS);

[0058] Reconfigurable Intelligent Surface (RIS).

[0059] Smart surface technology has applications in multiple technical fields, with various design schemes depending on the application scenario. Classified by the physical principle of the device unit, it includes tunable resonators (variable capacitor type), guided waveguide type, and element rotation polarization type, etc.; according to the wireless signal output form, it is divided into reflective smart surfaces and transmissive smart surfaces; according to the wireless signal response parameters, it includes phase-controlled smart surfaces, amplitude-controlled smart surfaces, and amplitude-phase combined control smart surfaces; according to the control of response parameters, it is divided into continuous control and discrete control types; according to the frequency or speed of controlling the amplitude and phase of the smart surface, it is divided into static, semi-static / dynamic control smart surfaces. Static smart surfaces can already be applied to existing systems, such as fourth-generation (4G) and fifth-generation (5G) mobile communication systems. Considering the complexity of device design and fabrication, the academic community generally chooses to use discrete control device units with a single wireless signal response parameter for research. Currently, the Intelligent Reflecting Surface (IRS) widely discussed in academia is a type of phase-controlled intelligent surface based on signal reflection. It controls the phase of the reflected signal of the device unit through a 1-bit indication information to achieve phase flipping of 0 or π.

[0060] Thanks to the elimination of the need for radio frequency and baseband processing circuits, smart surface devices have several advantages over traditional wireless communication transceivers:

[0061] (1) Smart surface devices have lower cost and lower implementation complexity;

[0062] (2) Smart surface devices have lower power consumption;

[0063] (3) The smart surface does not introduce additional receiver thermal noise;

[0064] (4) Intelligent surface devices are thin and lightweight, allowing for flexible deployment.

[0065] The types of RIS reflector units are as follows:

[0066] (1) Tunable resonator: A variable capacitor is integrated into the resonator, and a phase shift is generated by changing the frequency of the frequency-agile patch resonator.

[0067] (2) Guided wave control method: In this case, the arriving space wave is coupled to the guided wave by the antenna, and then the guided wave is phase-shifted and re-transmitted, forming an antenna phase shifter.

[0068] (3) Rotation technology of circularly polarized waves: Designed using the reflection law of electromagnetic waves.

[0069] Based on whether they can be dynamically controlled, reflective arrays / smart surfaces can be divided into two main categories:

[0070] (1) Static reflective array / smart surface: The structure and function of the reflective array can be fixed. For an incident wave at an angle, the metasurface unit causes the amplitude, phase, polarization and other characteristics of the incident wave to change in a fixed way, and the corresponding reflected wave is obtained.

[0071] (2) Dynamic Reflective Arrays / Smart Surfaces: The structure and function of a reflective array are controllable. For an incident wave at a certain angle, the amplitude, phase, polarization, and other characteristics of the incident wave can be changed through programmable control to obtain a corresponding reflected wave. To achieve programmable control of the reflective metasurface, switching elements (such as diodes) must be introduced into the reflective unit. PIN diodes are currently a common choice for controlling reconfigurable metasurfaces. PIN diodes have a wide range of RF impedances and low distortion, and are widely used in the microwave RF field. The switching elements in the reflective unit give it multiple different states, and the switching between different states can be achieved by controlling the on and off states of the switching elements. The structure and performance of the corresponding reflective unit change significantly when the switching elements are on or off. That is, the reflective unit in different states has different control modes for the amplitude, phase, polarization, and other characteristics of the incident wave.

[0072] II. Direct modulation of signals by smart surfaces:

[0073] Because smart surfaces can directly modulate the wavefront and various electromagnetic parameters of electromagnetic signals, such as phase, amplitude, frequency, and even polarization, without the need for complex baseband processing and RF transceiver operations, smart surfaces can not only change the wireless channel environment to enhance the reception quality of third-party signals, but also be used to directly modulate signals.

[0074] For example, adjusting the reflected phase / amplitude of the electromagnetic units on a smart surface is not only used to maximize the received signal-to-noise ratio of the incident electromagnetic wave, but also for information transmission within the LIS itself. The receiver receives information from the smart surface by detecting changes in the phase / amplitude of the reflected signal.

[0075] III. Passive Intelligent Surfaces:

[0076] Because smart surfaces are composed of a large number of device units and have no radio frequency and baseband processing capabilities, they are called passive smart surfaces.

[0077] IV. Smart surfaces combining active and passive power (or active smart surfaces):

[0078] Because smart surfaces consist of numerous device units and lack RF and baseband processing capabilities, base stations cannot separately obtain channel information from the base station to the smart surface and from the smart surface to the terminal. The received signal from the base station or terminal is formed by the superposition of response signals from numerous smart surface device units; changing the operating state of one or a few device units does not significantly alter the received signal. One possible measurement scheme is to install a small number of active device units in the smart surface, enabling it to perform channel measurement and feedback. The base station uses compressed sensing or deep learning algorithms to deduce reasonable smart surface configuration parameters from limited channel information. Smart surface-based communication systems require an efficient channel measurement mechanism to maximize end-to-end signal quality while maintaining low complexity of the smart surface. This type of smart surface, equipped with some active devices, possesses the ability to receive and even transmit signals, making it a hybrid active-passive smart surface (or an active smart surface).

[0079] V. Regarding the Synchronization Signal and PBCH block (SSB) in New Radio (NR):

[0080] See Figure 1 In NR, a single SSB comprises a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS), and a Physical Broadcast Channel (PBCH), distributed across four consecutive Orthogonal Frequency Division Multiplexing (OFDM) symbols. An SSB burst set period includes multiple SSBs (e.g., eight SSBs), with different SSBs corresponding to different beam directions. NR supports SSB burst set periods of 5 milliseconds (ms), 10 ms, 20 ms, etc.

[0081] See Figure 2The figure shows a block diagram of a wireless communication system applicable to an embodiment of this application. The wireless communication system includes a terminal 21, a network-side device 22, and a smart surface device 23. The terminal 21 can also be called a terminal device or user equipment (UE). The terminal 21 can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), wearable device, vehicle-mounted device (VUE), pedestrian terminal (PUE), etc. Wearable devices include wristbands, headphones, glasses, etc. It should be noted that the specific type of terminal 21 is not limited in this embodiment.

[0082] Network-side device 22 can be a base station or a core network. The base station can be referred to as a node B, evolved node B, access point, base transceiver station (BTS), radio base station, radio transceiver, basic service set (BSS), extended service set (ESS), B node, evolved B node (eNB), home B node, home evolved B node, WLAN access point, WiFi node, transmitting and receiving point (TRP), radio access network node, or any other suitable term in the field. As long as the same technical effect is achieved, the base station is not limited to the specified technical terms. It should be noted that in this application embodiment, only the base station in the NR system is used as an example, but the specific type of base station is not limited.

[0083] The following description, in conjunction with the accompanying drawings, details a node identification method, apparatus, device, and readable storage medium provided in this application through some embodiments and application scenarios.

[0084] See Figure 3 This application provides a node identification method, executed by a terminal, including steps 301 and 302.

[0085] Step 301: Obtain first information, which is related to the signal sent by the base station;

[0086] Step 302: Based on the first information, determine one or more nodes associated with the base station;

[0087] The node includes at least one of the following:

[0088] Reconfigurable Intelligent Surface (RIS) node;

[0089] Relay node;

[0090] Integrated Access and Backhaul (IAB) node.

[0091] For example, based on the first information, identify or determine one or more nodes associated with the serving cell, or determine one or more nodes associated with neighboring cells.

[0092] It is understood that the base station can know whether the node exists, or the deployment location of the node, or the node's parameters (e.g., pattern set, bit quantization precision, control signal characteristics, etc.).

[0093] In this application embodiment, the application scenarios for terminal identification of different nodes may include:

[0094] Scenario 1: Nodes used for relay:

[0095] In other words, the base station itself cannot cover the terminal; the terminal must access the base station cell through a node. See [link / reference]. Figure 6 Terminal 1 is located between the base station and the node, and receives SSB2; Terminal 2 is located within the node's coverage area but cannot receive the base station's signal. Thus, Terminal 1 can only receive signals from the base station, and Terminal 2 can only receive signals from the base station as modified by Node 1. In this way, Terminal 2 identifies Node 1 and reports it to the base station, allowing the base station to more accurately adjust the beams of Terminal 1 and Terminal 2. For example, it can enhance the signal of Terminal 2 through joint optimization by the base station and LIS, and enhance the signal of Terminal 1 through base station beam adjustment.

[0096] Scenario 2: UE Coverage Enhancement Scenario:

[0097] When the data service rate of the UE exceeds the current channel capacity, the system provides stronger signal quality through nodes or increases data stream multiplexing, thereby improving the data communication rate of the UE.

[0098] Optionally, the cell can configure the UE to associate with multiple nodes, and the UE can identify multiple nodes. Furthermore, the UE can feed back the desired beam of each node to the base station.

[0099] Scenario 3: Location based on multiple nodes:

[0100] The UE can identify signals from multiple nodes, which can improve the accuracy of node-based positioning.

[0101] It is understood that, in the embodiments of this application, the application scenarios for terminal identification of different nodes are not limited to the above three scenarios.

[0102] In some embodiments, step 301 includes: detecting a first signal sent by a base station; determining first information based on the first signal, the first information including: feature change information of the first signal, information of a node corresponding to the feature change information of the first signal (e.g., the index of the node), and the feature change of the first signal being changed or controlled by the node; step 302 includes: determining information of one or more nodes associated with the base station based on the feature change information of the first signal.

[0103] In this embodiment of the application, before detecting the first signal sent by the base station, the method further includes: determining whether the terminal can detect the signal sent by the node; if the terminal can detect the signal sent by the node, then performing the step of detecting the first signal sent by the base station.

[0104] In this embodiment of the application, the method further includes: sending the detection result of the first signal, the detection result including: whether the signal sent by the node can be detected (i.e., whether the node pairing is successful), and / or whether the information of the node associated with the base station can be determined (e.g., the index of the node).

[0105] In this embodiment of the application, determining the information of the node associated with the base station based on the characteristic change information of the first signal includes:

[0106] Based on the feature change information of the first signal and the first association relationship, the index of the node associated with the base station is determined; wherein, the first association relationship includes the association relationship between the feature change pattern of the first signal and the index of the node.

[0107] Optionally, the first association is agreed upon by a protocol or sent to the terminal by the base station.

[0108] In this embodiment of the application, the method further includes: if the node associated with the base station is activated or deactivated, obtaining information about the activated or deactivated node by receiving signaling sent by the base station; or if the association between the characteristic change pattern of the first signal and the node index changes, obtaining the updated association between the characteristic change pattern of the first signal and the node index by receiving signaling sent by the base station.

[0109] Optionally, the features of the first signal may include one or more of the following: (1) phase, (2) amplitude, (3) polarization mode, (4) frequency, and (5) orbital angular momentum (OAM) mode.

[0110] In this embodiment of the application, the characteristic change of the first signal is altered or controlled by the node, including:

[0111] The changes in the phase, amplitude, polarization, frequency, and / or OAM mode of the first signal are altered or controlled by adjusting the switching on or off of the diodes associated with the node.

[0112] or,

[0113] The changes in the phase, amplitude, polarization, frequency, and / or OAM mode of the first signal are applied to the node by applying different voltage changes or controls.

[0114] In the embodiments of this application, the characteristics of the first signal vary in the time domain and / or frequency domain.

[0115] In this embodiment of the application, one or more of the following features of the first signal, namely the way in which time-domain resources change, the granularity of the changing time-domain resources, the change period, the information of the time unit of change, and the starting position of the change period, are agreed upon by the protocol or sent to the terminal by the base station.

[0116] In the embodiments of this application, the time-domain resource granularity is every M orthogonal frequency division multiplex (OFDM) symbols, where M is greater than or equal to 1; or every N time slots, where N is greater than or equal to 1; or every K synchronization signal and PBCH block (SSB) period, where K is greater than or equal to 1.

[0117] In this embodiment of the application, the characteristics of the first signal change with frequency domain resources, and one or more of the granularities of the changing frequency domain resources are agreed upon by the protocol or sent to the terminal by the base station.

[0118] In the embodiments of this application, the frequency domain resource granularity is a subcarrier, a subcarrier group, a bandwidth part (BWP), a BWP group, a radio bearer (RB), an RB bundle, or an RB group.

[0119] In the embodiments of this application, the first signal includes at least one of the following: (1) SSB, (2) Channel State Information Reference Signal (CSI-RS), (3) System Information Block (SIB)1, (4) Demodulation Reference Signal (DMRS), and (5) Tracking Reference Signal (TRS).

[0120] In this embodiment of the application, in step 301, a second signal sent by the base station to the first node is received, and the relevant information of the second signal corresponds to the first node; based on the second signal, first information is determined, and the first information includes: the relevant information of the second signal; in step 302, based on the relevant information of the second signal, one or more nodes associated with the base station are determined.

[0121] In the embodiments of this application, the relevant information of the second signal includes at least one of the following: sequence format, sequence phase, initial sequence, scrambling sequence, and orthogonal cover code of the sequence.

[0122] In this embodiment of the application, determining one or more nodes associated with the base station based on the relevant information of the second signal includes:

[0123] Based on the relevant information of the second signal and the second association relationship, the index of the node associated with the base station is determined; wherein, the second association relationship includes: the association relationship between the relevant information of the second signal and the index of the node.

[0124] Optionally, the second association relationship is agreed upon by a protocol or sent to the terminal by the base station.

[0125] In the embodiments of this application, the second signal includes one or more of the following: (1) SSB, (2) CSI-RS, (3) DMRS, (4) Message 2 (MSG2), (5) Message 4 (MSG4), and (6) Message B (MSGB). Optionally, CSI-RS or DMRS is quasi-co-located with SSB.

[0126] In this embodiment of the application, in step 301, first information sent by the base station is received, the first information indicating a third association relationship, wherein the third association relationship includes the association relationship between the third signal and the node index.

[0127] Optionally, the third signal includes one or more of the following: (1) SSB, (2) CSI-RS, (3) DMRS.

[0128] In this embodiment of the application, the method further includes: sending information (e.g., node identification information) of one or more nodes identified by the terminal to the network side. Optionally, the information of the one or more nodes is used by the network side to adjust the beam of the node associated with the terminal.

[0129] In this embodiment of the application, if the terminal identifies multiple nodes, the method further includes: acquiring signals from the multiple nodes; and locating the terminal based on the signals from the multiple nodes.

[0130] In this embodiment, the terminal can identify one or more nodes associated with the base station, assisting the base station in more accurately adjusting the beam of each node, thereby improving the strength of the terminal signal or improving the positioning accuracy based on multiple nodes.

[0131] See Figure 4 This application provides a node identification method, executed by RIS, and the specific steps include: step 401.

[0132] Step 401: Change or control the characteristics of a first signal transmitted by a base station associated with the node, wherein the characteristic change information of the first signal is associated with the information of the node.

[0133] In the embodiments of this application, the features of the first signal include one or more of the following: (1) phase, (2) amplitude, (3) polarization mode, (4) frequency, and (5) OAM mode.

[0134] In this embodiment of the application, the feature of changing or controlling the first signal includes:

[0135] Method 1: Change or control the phase, amplitude, polarization, frequency and / or OAM mode of the first signal transmitted by the base station associated with the node by adjusting the on or off state of the diode associated with the node.

[0136] Method 2: By applying different voltages to the node, the phase, amplitude, polarization, frequency, and / or OAM mode of the first signal transmitted by the base station associated with the node are changed or controlled.

[0137] In the embodiments of this application, the characteristics of the first signal vary in the time domain and / or frequency domain.

[0138] In this embodiment of the application, one or more of the following features of the first signal, namely the way in which time-domain resources change, the granularity of the changing time-domain resources, the change period, the information of the time unit of change, and the starting position of the change period, are agreed upon by the protocol or sent to the terminal by the base station.

[0139] In the embodiments of this application, the temporal resource granularity is per M OFDM symbols, where M is greater than or equal to 1; or per N time slots, where N is greater than or equal to 1; or per K SSB cycles, where K is greater than or equal to 1.

[0140] In this embodiment of the application, the characteristics of the first signal change with frequency domain resources, and one or more of the granularities of the changing frequency domain resources are agreed upon by the protocol or sent to the terminal by the base station.

[0141] In the embodiments of this application, the frequency domain resource granularity is a subcarrier, a subcarrier group, a BWP, a BWP group, an RB, an RPBundle, or an RB group.

[0142] In the embodiments of this application, the first signal includes at least one of the following: (1) SSB, (2) CSI-RS, (3) SIB1, (4) DMRS, (5) TRS.

[0143] In this embodiment of the application, before changing or controlling the characteristics of the first signal transmitted by the base station associated with the node, the method further includes:

[0144] Receive configuration information sent by the base station associated with the node;

[0145] The configuration information indicates one or more of the following:

[0146] (1) First association;

[0147] (2) Second relationship;

[0148] (3) Third-party relationship;

[0149] (4) The first signal has at least one of the following characteristics: time-domain resource granularity, change period, change time unit information, and start position of the change period.

[0150] (5) The characteristics of the first signal change with frequency domain resources in a manner that changes with frequency domain resources, and at least one of the following:

[0151] The first association relationship includes the association relationship between the characteristic change pattern of the first signal and the index of the node;

[0152] The second association relationship includes: the association relationship between the relevant information of the second signal and the index of the node, wherein the second signal includes one or more of the following: SSB, CSI-RS, DMRS, MSG2, MSG4, MSGB;

[0153] The third association relationship includes the association relationship between the third signal and the node index, and the third signal includes one or more of the following: SSB, CSI-RS, DMRS.

[0154] In the embodiments of this application, a node implicitly indicates the information of the node, such as the node's index, by changing or controlling the characteristic changes of the base station signal. This enables the terminal to identify one or more nodes associated with the base station based on the characteristic change information of the signal, assisting the base station in more accurately adjusting the beam of each node, thereby improving the strength of the terminal signal or improving the positioning accuracy based on multiple nodes.

[0155] See Figure 5 This application provides a node identification method, which is executed by a base station, and the specific steps include: step 501.

[0156] Step 501: Send a second signal to the first node associated with the base station, wherein the relevant information of the second signal corresponds to the first node.

[0157] In this embodiment of the application, the relevant information of the second signal includes at least one of the following:

[0158] (1) Sequence format, (2) Sequence phase, (3) Initial sequence, (4) Scrambling sequence, and (5) Orthogonal mask of the sequence.

[0159] In the embodiments of this application, the second signal includes one or more of the following: (1) SSB, (2) CSI-RS, (3) DMRS, (4) MSG2, (5) MSG4, (6) MSGB.

[0160] In this embodiment of the application, the method further includes:

[0161] Send configuration information to the first node;

[0162] The configuration information indicates one or more of the following:

[0163] (1) First association;

[0164] (2) Second relationship;

[0165] (3) Third-party relationship;

[0166] (4) The first signal has at least one of the following characteristics: time-domain resource granularity, change period, change time unit information, and start position of the change period.

[0167] (5) The characteristics of the first signal change with frequency domain resources in a manner that changes with frequency domain resources, and at least one of the following:

[0168] The first association relationship includes the association relationship between the characteristic change pattern of the first signal and the index of the node;

[0169] The second association includes: the association between the relevant information of the second signal and the index of the node;

[0170] The third association relationship includes the association relationship between the third signal and the node index, and the third signal includes one or more of the following: SSB, CSI-RS, DMRS.

[0171] In this embodiment of the application, the terminal can identify one or more nodes associated with the base station based on the received second signal, assisting the base station to more accurately adjust the beam of each node, thereby improving the strength of the terminal signal or improving the positioning accuracy based on multiple nodes.

[0172] The embodiments of this application are described below with reference to Embodiment 1, Embodiment 2 and Embodiment 3, wherein the node is RIS.

[0173] Example 1: RIS modifies / controls the first signal characteristics to implicitly indicate RIS information.

[0174] Step 1: The base station sends a configuration message, which includes one or more of the following:

[0175] (1) Configuration parameters of the first signal, signal identification related parameters, time and frequency resources, periodic or non-periodic parameters, etc.;

[0176] (2) RIS signal manipulation / modulation parameters, number of RIS states, coding modulation method (differential or direct modulation), RIS type (manipulation signal characteristics, amplitude / phase / polarization direction, etc.), RIS switching timing (switching within the cyclic prefix (CP) or during symbol switching);

[0177] Optionally, the base station (through the interface between the base station and the RIS) sends corresponding configuration information, indicating the configuration parameters of the first signal, etc.

[0178] The RIS encodes modulation information according to configuration information and the RIS index or identifier (index / ID) to determine the forwarding pattern corresponding to each symbol or each transmission occasion of the first signal.

[0179] The number of symbols or transmission opportunities configured in the first signal is not less than the number of coded and modulated information that the RIS needs to transmit.

[0180] Step 2: The UE detects the first signal sent by the base station;

[0181] The first signal contains multiple symbols or multiple transmission timings;

[0182] The base station transmits the first signal using the same transmit beam, and the RIS operates according to the forwarding pattern determined in the previous step.

[0183] Step 3: The UE determines the RIS information, such as the RIS index, based on the characteristic change pattern of the first signal and the first correlation relationship (RIS coding and modulation method).

[0184] The UE first determines whether it can detect the RIS signal (whether the UE can pair with the RIS);

[0185] If the RIS signal can be detected, determine the index (or feature index) of the RIS corresponding to the first signal feature.

[0186] Referring to Table 1, the characteristic change pattern X corresponds to RIS index 1, the characteristic change pattern Y corresponds to RIS index 2, and the characteristic change pattern Z corresponds to RIS index 3.

[0187] Table 1

[0188] The characteristic change pattern of the first signal RIS Index Characteristic Change Pattern X 1 Feature variation law Y 2 Feature variation law Z 3

[0189] Among them, the correlation between the characteristic change pattern of the first signal of the protocol definition or base station notification terminal and the index of RIS.

[0190] Optionally, the first signal includes at least one of the following: SSB, CSI-RS, SIB1, DMRS, TRS, or other signals.

[0191] Optionally, the features of the first signal include at least one time-varying feature such as phase, amplitude, polarization, frequency, and OAM mode.

[0192] In this embodiment of the application, the specific method for RIS to change / control the characteristics of the first signal is as follows:

[0193] (1) RIS changes / controls at least one of the phase, amplitude, polarization, frequency, and OAM mode of the first signal;

[0194] (2) The RIS changes / controls at least one of the phase, amplitude, polarization, frequency, and OAM mode of the first signal by adjusting the diode associated with the RIS unit to be on or off, or by applying different voltages to the RIS unit.

[0195] If a RIS is added or removed (activated or deactivated) in the cell, the information of the activated or deactivated node is obtained by receiving signaling sent by the base station. Alternatively, if the association between the characteristics of an existing RIS and the first signal changes, the UE is notified by changing the cell system message. That is, the base station notifies the UE of the system message change by paging the system message, and the UE reads the system message to obtain the change information.

[0196] Optionally, the UE reports the detection result of the first signal, which indicates whether the UE detected RIS, whether the RISindex detection was successful, etc.

[0197] Method 1-1: The characteristics of the first signal only change in the time domain.

[0198] The characteristics of the first signal that change over time, including the manner in which the characteristics change, the temporal granularity of the change, the period of change, and the starting position of the period of change, may be defined by a protocol or notified to the terminal by the base station.

[0199] The time granularity at which the RIS changes / controls the first signal characteristic can be every M (M>=1) OFDM symbols, every N (N>=1) time slots, or every K (K>=1) SSB cycles. The SSB cycle can be 5 milliseconds (ms), 10 ms, 20 ms, 40 ms, etc., meaning that each time granularity can change the base station's signal characteristics.

[0200] Taking SSB as the first signal as an example, RIS implicitly indicates the information of RIS by changing the signal characteristics of SSB.

[0201] (1) Temporal granularity of change: The fastest change is once every 1 SSB burst set period;

[0202] (2) Change cycle: 4 SSB burst set cycles;

[0203] (3) The way in which the characteristics of the first signal change over time:

[0204] The first characteristic is that the phases of each SSB burst set in the four SSB burst set cycles are phase 1, phase 2, phase 1, and phase 2, respectively. (See [link]). Figure 7a ;

[0205] The second characteristic is that the phases of each SSB burst set in the four SSB burst set cycles are phase 1, phase 1, phase 2, and phase 2, respectively. See [link to relevant documentation]. Figure 7b ;

[0206] The first feature and the second feature can be associated with RIS index 1 and RIS index 2 (or feature index 1 and feature index 2), respectively.

[0207] In this way, the UE can determine which feature SSB1 / SSB2 carries by detecting the phase change features carried by the SSB, and thus determine the index of the RIS associated with SSB1 / SSB2.

[0208] Method 1-2: The characteristics of the first signal only change in the frequency domain.

[0209] The characteristics of the first signal change with different frequency domain resources, and the granularity of the changing frequency domain resources is defined by the protocol or broadcast by the base station.

[0210] The frequency domain resource granularity at which RIS changes / controls the first signal characteristics can be every M (M>=1) subcarriers, RB, RPBundle, RB group (containing several RBs); that is, each frequency domain resource granularity can change the signal characteristics of the base station.

[0211] Methods 1-3: The characteristics of the first signal vary in the frequency domain and time domain.

[0212] In this embodiment, the RIS implicitly indicates RIS-related information, such as the RIS index, to the UE by changing / controlling the characteristics of the first signal transmitted by the base station as time and frequency domain resources change.

[0213] Example 2: The base station sends signals to different RISs carrying RIS information.

[0214] Method 2-1: The base station has 5 SSBs, of which SSB2, SSB3 and SSB4 are sent by the base station to RIS1, and SSB0 and SSB1 are the other two SSBs.

[0215] See Figure 8 The SSBs (SSB2, SSB3, and SSB4) sent by the base station to RIS1 carry information related to RIS1, such as the initial sequence of the PSS or SSS of SSB2, SSB3, and SSB4, the scrambling sequence, or the cover code, etc., which are related to RIS1.

[0216] The association between the initial sequence, scrambling sequence, or cover code and RIS1 information can be defined by the protocol or indicated to the UE by the base station (e.g., via SIB / MIB).

[0217] Optionally, the UE can detect the SSB to determine the RIS associated with the SSB or to determine if there is a usable RIS within the coverage area of ​​the SSB.

[0218] Optionally, the UE may further determine whether it needs RIS assistance during subsequent RIS-based beam training.

[0219] Method 2-2: The SSB does not carry information related to RIS1, while the CSI-RS, DMRS, MSG2, MSG4 or MSGB sent to RIS carry information related to RIS1.

[0220] Among them, the initial sequence, scrambling sequence, or cover code of CSI-RS or DMRS are related to RIS1.

[0221] Optionally, the association between the initial sequence, scrambling sequence, or cover code and RIS1 information is defined by the protocol or instructed to the UE by the base station (e.g., via SIB, Master Information Block (MIB), Radio Resource Control (RRC) signaling, Media Access Control (MAC) control element (CE), or Layer 1 signaling).

[0222] The UE determines the information of the RIS associated with it by detecting CSI-RS or DMRS (the index of the RIS carried in the reference signal, and the preliminary results of RIS beam training).

[0223] Optionally, CSI-RS or DMRS can be quasi-co-located with SSB.

[0224] Methods 2-3: SSB and CSI-RS / DMRS, etc., all carry information related to RIS1.

[0225] If a RIS is added or removed in the cell, or if the association between the characteristics of an existing RIS and the first signal changes, the UE is notified through a cell system message change. That is, the base station notifies the UE of the system message change through paging, and the UE reads the system message to obtain the change information.

[0226] Example 3: The base station directly indicates which SSBs are associated with the RIS.

[0227] For example, the UE receives the SSB and the index of the RIS associated with the SSB from the base station. For example, SSB1 is associated with RIS1, SSB2 is associated with RIS2, and SSB3 is not associated with any RIS.

[0228] The UE receives the CSI-RS / DMRS notification from the base station and the index of the RIS associated with the CSI-RS / DMRS.

[0229] If a RIS is added or removed in the cell, or if the association between the characteristics of an existing RIS and the first signal changes, the UE is notified through a cell system message change. That is, the base station notifies the UE of the system message change through a paging message, and the UE reads the system message to obtain the change information.

[0230] It is understood that the RIS in the above three embodiments can also be some kind of relay, such as layer 1 relay, layer 2 relay, layer 3 relay, or integrated access and backhaul (IAB) node.

[0231] See Figure 9 This application provides a node identification device 900, which includes:

[0232] The first acquisition module 901 is used to acquire first information, which is related to the signal sent by the base station.

[0233] The first determining module 902 is used to determine one or more nodes associated with the base station based on the first information; wherein the nodes include at least one of the following: a reconfigurable smart surface node; a relay node; and an IAB node.

[0234] In this embodiment of the application, the first acquisition module 901 is further configured to: detect a first signal sent by the base station; determine first information based on the first signal, wherein the first information includes: feature change information of the first signal;

[0235] The first determining module 902 is further configured to: determine information about one or more nodes associated with the base station based on the characteristic change information of the first signal.

[0236] In this embodiment of the application, the device 900 further includes:

[0237] The second determining module is used to determine whether the terminal can detect the signal sent by the node; if the terminal can detect the signal sent by the node, then the step of determining the first information based on the first signal is triggered.

[0238] In this embodiment of the application, the device 900 further includes:

[0239] The first transmitting module is used to transmit the detection result of the first signal, the detection result including: whether the signal transmitted by the node can be detected, and / or whether the information of the node associated with the base station can be determined.

[0240] In this embodiment of the application, the first determining module 902 is further configured to: determine the index of the node associated with the base station based on the feature change information of the first signal and the first association relationship; wherein, the first association relationship includes the association relationship between the feature change pattern of the first signal and the index of the node.

[0241] In this embodiment of the application, the first association relationship is agreed upon by a protocol or sent to the terminal by the base station.

[0242] In this embodiment of the application, the device 900 further includes:

[0243] The second acquisition module is used to acquire information about the activated or deactivated node by receiving signaling sent by the base station if the node associated with the base station is activated or deactivated; or to acquire the updated association between the characteristic change pattern of the first signal and the node index by receiving signaling sent by the base station if the association between the characteristic change pattern of the first signal and the node index changes.

[0244] In the embodiments of this application, the features of the first signal include one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode.

[0245] In this embodiment of the application, the characteristic changes of the first signal are altered or controlled by the node, including: changes in the phase, amplitude, polarization, frequency and / or OAM mode of the first signal are altered or controlled by adjusting the on or off state of the diode associated with the node; or, changes in the phase, amplitude, polarization, frequency and / or OAM mode of the first signal are altered or controlled by applying different voltages to the node.

[0246] In this embodiment of the application, one or more of the following features of the first signal, namely the way in which time-domain resources change, the granularity of the changing time-domain resources, the change period, the information of the time unit of change, and the starting position of the change period, are agreed upon by the protocol or sent to the terminal by the base station.

[0247] In the embodiments of this application, the temporal resource granularity is per M OFDM symbols, where M is greater than or equal to 1; or per N time slots, where N is greater than or equal to 1; or per K SSB cycles, where K is greater than or equal to 1.

[0248] In this embodiment of the application, the characteristics of the first signal change with frequency domain resources, and one or more of the granularities of the changing frequency domain resources are agreed upon by the protocol or sent to the terminal by the base station.

[0249] In the embodiments of this application, the frequency domain resource granularity is a subcarrier, a subcarrier group, a BWP, a BWP group, an RB, an RPBundle, or an RB group.

[0250] In the embodiments of this application, the first signal includes at least one of the following: SSB, CSI-RS, SIB1, DMRS, and TRS.

[0251] In this embodiment of the application, the first acquisition module 901 is further configured to: receive a second signal sent by the base station to the first node, wherein the relevant information of the second signal corresponds to the first node; and determine first information based on the second signal, wherein the first information includes: the relevant information of the second signal;

[0252] The first determining module 902 is further configured to: determine one or more nodes associated with the base station based on the relevant information of the second signal.

[0253] In this embodiment of the application, the relevant information of the second signal includes at least one of the following:

[0254] Sequence format, sequence phase, initial sequence, scrambling sequence, and orthogonal mask of the sequence.

[0255] In this embodiment of the application, the first determining module 902 is further configured to: determine the index of the node associated with the base station based on the relevant information of the second signal and the second association relationship;

[0256] The second association relationship includes the association relationship between the relevant information of the second signal and the index of the node.

[0257] In this embodiment of the application, the second association relationship is agreed upon by a protocol or sent to the terminal by the base station.

[0258] In the embodiments of this application, the second signal includes one or more of the following: SSB, CSI-RS, DMRS, MSG2, MSG4, MSGB.

[0259] In this embodiment of the application, the first acquisition module 901 is further configured to: receive first information sent by the base station, the first information indicating a third association relationship, wherein the third association relationship includes the association relationship between the index of the third signal and the node.

[0260] In the embodiments of this application, the third signal includes one or more of the following: SSB, CSI-RS, DMRS.

[0261] In this embodiment of the application, the device 900 further includes:

[0262] The second sending module is used to send information about one or more nodes identified by the terminal to the network side.

[0263] In this embodiment of the application, the device 900 further includes:

[0264] The third transmitting module is used to transmit the beams of one or more nodes desired by the terminal to the network side if the terminal identifies one or more nodes.

[0265] The apparatus provided in this application embodiment can achieve... Figure 3 The various processes implemented in the method embodiments shown achieve the same technical effects, and will not be described again here to avoid repetition.

[0266] See Figure 10 This application provides a node identification device, the device 1000 including:

[0267] The processing module 1001 is used to change or control the characteristics of a first signal transmitted by a base station associated with the node; wherein the characteristic change information of the first signal is associated with the information of the node.

[0268] In the embodiments of this application, the features of the first signal include one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode.

[0269] In this embodiment of the application, the feature of changing or controlling the first signal transmitted by the base station associated with the node includes:

[0270] The phase, amplitude, polarization, frequency, and / or OAM mode of a first signal transmitted by a base station associated with the node are changed or controlled by adjusting the on or off state of the diode associated with the node.

[0271] or,

[0272] By applying different voltages to the node, the phase, amplitude, polarization, frequency, and / or OAM mode of the first signal transmitted by the base station associated with the node can be changed or controlled.

[0273] In this embodiment of the application, one or more of the following features of the first signal, namely the way in which time-domain resources change, the granularity of the changing time-domain resources, the change period, the information of the time unit of change, and the starting position of the change period, are agreed upon by the protocol or sent to the terminal by the base station.

[0274] In the embodiments of this application, the temporal resource granularity is per M OFDM symbols, where M is greater than or equal to 1; or per N time slots, where N is greater than or equal to 1; or per K SSB cycles, where K is greater than or equal to 1.

[0275] In this embodiment of the application, the characteristics of the first signal change with frequency domain resources, and one or more of the granularities of the changing frequency domain resources are agreed upon by the protocol or sent to the terminal by the base station.

[0276] In the embodiments of this application, the frequency domain resource granularity is a subcarrier, a subcarrier group, a BWP, a BWP group, an RB, an RPBundle, or an RB group.

[0277] In the embodiments of this application, the first signal includes at least one of the following: SSB, CSI-RS, SIB1, DMRS, and TRS.

[0278] In this embodiment of the application, the device 1000 further includes:

[0279] The second acquisition module is used to receive configuration information sent by the base station associated with the node;

[0280] The configuration information indicates one or more of the following:

[0281] First relationship;

[0282] Second relationship;

[0283] Third-party relationship;

[0284] The first signal is characterized by at least one of the following: time-domain resource granularity of time-domain resource change, change period, change time unit information, and start position of change period;

[0285] The first signal's characteristics change with frequency domain resources in a manner that includes at least one of the following: the granularity of the frequency domain resources in which the characteristics change.

[0286] The first association relationship includes the association relationship between the characteristic change pattern of the first signal and the index of the node;

[0287] The second association relationship includes: the association relationship between the relevant information of the second signal and the index of the node, wherein the second signal includes one or more of the following: SSB, CSI-RS, DMRS, MSG2, MSG4, MSGB;

[0288] The third association relationship includes the association relationship between the third signal and the node index, and the third signal includes one or more of the following: SSB, CSI-RS, DMRS.

[0289] The apparatus provided in this application embodiment can achieve... Figure 4 The various processes implemented in the method embodiments shown achieve the same technical effects, and will not be described again here to avoid repetition.

[0290] See Figure 11 This application provides a node identification device, the device 1100 including:

[0291] The fourth transmitting module 1101 is used to transmit a second signal to the first node associated with the base station, wherein the relevant information of the second signal corresponds to the first node.

[0292] In the embodiments of this application, the relevant information of the second signal includes at least one of the following: sequence format, sequence phase, initial sequence, scrambling sequence, and orthogonal mask of the sequence.

[0293] In the embodiments of this application, the second signal includes one or more of the following: SSB, CSI-RS, DMRS, MSG2, MSG4, MSGB.

[0294] In this embodiment of the application, the device 1100 includes:

[0295] The fifth sending module is used to send configuration information to the first node;

[0296] The configuration information indicates one or more of the following:

[0297] First relationship;

[0298] Second relationship;

[0299] Third-party relationship;

[0300] The first signal is characterized by at least one of the following: time-domain resource granularity of time-domain resource change, change period, change time unit information, and start position of change period;

[0301] The first signal's characteristics change with frequency domain resources in a manner that includes at least one of the following: the granularity of the frequency domain resources in which the characteristics change.

[0302] The first association relationship includes the association relationship between the characteristic change pattern of the first signal and the index of the node;

[0303] The second association includes: the association between the relevant information of the second signal and the index of the node;

[0304] The third association relationship includes the association relationship between the third signal and the node index, and the third signal includes one or more of the following: SSB, CSI-RS, DMRS.

[0305] The apparatus provided in this application embodiment can achieve... Figure 5 The various processes implemented in the method embodiments shown achieve the same technical effects, and will not be described again here to avoid repetition.

[0306] Figure 12 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0307] The terminal 1200 includes, but is not limited to, the following components: radio frequency unit 1201, network module 1202, audio output unit 1203, input unit 1204, sensor 1205, display unit 1206, user input unit 1207, interface unit 1208, memory 1209, and processor 1210.

[0308] Those skilled in the art will understand that the terminal 1200 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 1210 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 12 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0309] It should be understood that, in this embodiment, the input unit 1204 may include a graphics processing unit (GPU) 12041 and a microphone 12042. The GPU 12041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 1206 may include a display panel 12061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 1207 includes a touch panel 12071 and other input devices 12072. The touch panel 12071 is also called a touch screen. The touch panel 12071 may include a touch detection device and a touch controller. Other input devices 12072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0310] In this embodiment, the radio frequency unit 1201 receives downlink data from the network-side device and processes it for the processor 1210; additionally, it sends uplink data to the network-side device. Typically, the radio frequency unit 1201 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0311] The memory 1209 can be used to store software programs or instructions and various data. The memory 1209 may primarily include a program or instruction storage area and a data storage area. The program or instruction storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 1209 may include high-speed random access memory and non-volatile memory, wherein the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. For example, at least one disk storage device, flash memory device, or other non-volatile solid-state storage device.

[0312] Processor 1210 may include one or more processing units; optionally, processor 1210 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operating system, user interface, and applications or instructions, and the modem processor mainly handles wireless communication, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 1210.

[0313] The terminal provided in this application embodiment can achieve... Figure 3 The various processes implemented in the method embodiments shown achieve the same technical effects, and will not be described again here to avoid repetition.

[0314] This application also provides a network-side device. For example... Figure 13 As shown, the network-side device 1300 includes: an antenna 1301, a radio frequency (RF) device 1302, and a baseband device 1303. The antenna 1301 is connected to the RF device 1302. In the uplink direction, the RF device 1302 receives information through the antenna 1301 and transmits the received information to the baseband device 1303 for processing. In the downlink direction, the baseband device 1303 processes the information to be transmitted and sends it to the RF device 1302. The RF device 1302 processes the received information and transmits it through the antenna 1301.

[0315] The aforementioned frequency band processing device can be located in the baseband device 1303. The method executed by the network-side device in the above embodiments can be implemented in the baseband device 1303, which includes a processor 1304 and a memory 1305.

[0316] The baseband device 1303 may, for example, include at least one baseband board on which multiple chips are disposed, such as... Figure 13As shown, one of the chips, for example, is a processor 1304, which is connected to a memory 1305 to call the program in the memory 1305 and execute the network device operation shown in the above method embodiment.

[0317] The baseband device 1303 may also include a network interface 1306 for exchanging information with the radio frequency device 1302, such as a common public radio interface (CPRI).

[0318] Specifically, the network-side device in this application embodiment further includes: instructions or programs stored in memory 1305 and executable on processor 1304, wherein processor 1304 calls the instructions or programs in memory 1305 to execute. Figures 10-11 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0319] This application also provides a program product, which is stored in a non-volatile storage medium and executed by at least one processor to implement the following: Figures 3-5 The steps of the processing method described above.

[0320] This application embodiment also provides a readable storage medium storing a program or instructions that, when executed by a processor, implement the above-described functionality. Figures 3-5 The various processes of the method embodiments shown can achieve the same technical effect, and will not be described again here to avoid repetition.

[0321] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0322] This application embodiment also provides a chip, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor being used to run network-side device programs or instructions to achieve the above-mentioned... Figures 3-5 The various processes of the method embodiments shown can achieve the same technical effect, and will not be described again here to avoid repetition.

[0323] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0324] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0325] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0326] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A node identification method performed by a terminal, the method comprising: The method comprises: obtaining first information related to a signal transmitted by a base station; determining one or more nodes associated with the base station according to the first information; The method comprises: receiving a second signal transmitted by the base station to a first node, the second signal being associated with the first node; determining the first information according to the second signal, the first information comprising information associated with the second signal; The method comprises: determining one or more nodes associated with the base station according to the information associated with the second signal; The nodes comprise at least one of: a reconfigurable intelligent surface node; a relay node; an integrated access and backhaul (IAB) node.

2. The method of claim 1, wherein, The method comprises: detecting a first signal transmitted by the base station; determining the first information according to the first signal, the first information comprising characteristic change information of the first signal; The method comprises: determining the information of one or more nodes associated with the base station according to the characteristic change information of the first signal.

3. The method of claim 2, wherein, Before detecting the first signal transmitted by the base station, the method further comprises: determining whether the terminal can detect a signal transmitted by the node; If the terminal can detect the signal transmitted by the node, the method further comprises:

4. The method of claim 3, wherein, determining the first information according to the first signal. The method further comprises:

5. The method of claim 2, wherein, sending a detection result of the first signal, the detection result comprising whether the terminal can detect the signal transmitted by the node and / or whether the terminal can determine the information of the node associated with the base station. The method comprises: determining an index of the node associated with the base station according to the characteristic change information of the first signal and a first association relationship; 6. The method of claim 5, wherein, The first association relationship comprises an association relationship between the characteristic change rule of the first signal and the index of the node.

7. The method of claim 5, wherein, The first association relationship is determined by a protocol or signaling transmitted by the base station to the terminal. The method further comprises: if the node associated with the base station is activated or deactivated, obtaining information of the activated or deactivated node by receiving signaling transmitted by the base station; or if the association relationship between the characteristic change rule of the first signal and the index of the node changes, obtaining the updated association relationship between the characteristic change rule of the first signal and the index of the node by receiving signaling transmitted by the base station.

8. The method of claim 2, wherein, The characteristics of the first signal comprise one or more of the following: phase, amplitude, polarization mode, frequency, and orbital angular momentum (OAM) mode.

9. The method of claim 8, wherein: the change in the phase, amplitude, polarization mode, frequency, and / or OAM mode of the first signal is controlled or changed by turning on or off a diode associated with the node; or the change in the phase, amplitude, polarization mode, frequency, and / or OAM mode of the first signal is controlled or changed by applying different voltages to the node. ​ 10. The method of claim 2, wherein, One or more of the following is agreed by protocol or sent by the base station to the terminal: a manner in which the characteristic of the first signal varies with time-domain resources, a granularity of time-domain resources in which the variation occurs, a period of variation, time unit information of variation, and a starting position of the period of variation.

11. The method of claim 10, wherein, The time-domain resource granularity is every M orthogonal frequency division multiplexing symbols, M being greater than or equal to 1, or every N time slots, N being greater than or equal to 1, or every K synchronization signal block (SSB) periods, K being greater than or equal to 1.

12. The method of claim 2, wherein, One or more of the following is agreed by protocol or sent by the base station to the terminal: a manner in which the characteristic of the first signal varies with frequency-domain resources, a granularity of frequency-domain resources in which the variation occurs.

13. The method of claim 12, wherein, The frequency-domain resource granularity is a subcarrier, a group of subcarriers, a bandwidth part (BWP), a group of BWPs, a radio bearer (RB), a bundle of RBs, or a group of RBs.

14. The method according to any one of claims 2-13, characterized in that, The first signal includes at least one of the following: an SSB, a channel state information reference signal (CSI-RS), a system information block 1, a demodulation reference signal (DMRS), and a tracking reference signal (TRS).

15. The method of claim 1, wherein, The related information of the second signal includes at least one of the following: A sequence format, a sequence phase, an initial sequence, a scrambling sequence, and a sequence orthogonal cover code.

16. The method of claim 1, wherein, The determining of the one or more nodes associated with the base station according to the related information of the second signal includes: Determining an index of a node associated with the base station according to the related information of the second signal and a second association relationship. The second association relationship includes an association relationship between the related information of the second signal and the index of the node.

17. The method of claim 16, wherein, The second association relationship is agreed by protocol or sent by the base station to the terminal.

18. The method of claim 1, wherein The second signal includes one or more of the following: an SSB, a CSI-RS, a DMRS, a message 2, a message 4, and a message B.

19. The method of claim 1, wherein, The obtaining of the first information includes: Receiving first information sent by the base station, the first information indicating a third association relationship, wherein the third association relationship includes an association relationship between a third signal and an index of a node.

20. The method of claim 19, wherein, The third signal includes one or more of the following: an SSB, a CSI-RS, and a DMRS.

21. The method of claim 1, wherein, The method further includes: Sending information of one or more nodes identified by the terminal to a network side.

22. The method of claim 1, wherein, If the terminal identifies one or more nodes, the method further includes: Sending information of one or more nodes expected by the terminal to the network side.

23. A node identification method, performed by a node, the method comprising: The method further includes: Changing or controlling a characteristic of a first signal sent by a base station associated with the node; The characteristic variation information of the first signal is associated with information of the node. Before changing or controlling the characteristic of the first signal sent by the base station associated with the node, the method further includes: Receiving configuration information sent by the base station associated with the node; The configuration information indicates one or more of the following: A first association relationship; A second association relationship; A third association relationship; At least one of the following: a granularity of time-domain resources in which the characteristic of the first signal varies with time-domain resources, a period of variation, time unit information of variation, and a starting position of the period of variation; At least one of the following: a manner in which the characteristic of the first signal varies with frequency-domain resources, a granularity of frequency-domain resources in which the variation occurs. The first association relationship includes an association relationship between a characteristic variation rule of the first signal and an index of a node. The second association relationship includes an association relationship between related information of a second signal and an index of a node, and the second signal includes one or more of the following: SSB, CSI-RS, DMRS, message 2, message 4, and message B. The third association relationship includes an association relationship between a third signal and an index of a node, and the third signal includes one or more of the following: SSB, CSI-RS, and DMRS.

24. The method of claim 23, wherein, The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode.

25. The method of claim 23, wherein, The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode.

26. The method of claim 23, wherein, The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode.

27. The method of claim 26, wherein, The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode.

28. The method of claim 23, wherein, The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode.

29. The method of claim 28, wherein, The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode.

30. The method of any one of claims 23-29, wherein, The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode.

31. A node identification method, performed by a base station, the method comprising: The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency, and OAM mode. The characteristic of the first signal includes one or more of the following: phase, amplitude, polarization mode, frequency The third association relationship includes an association relationship between a third signal and an index of a node, and the third signal includes one or more of the following: SSB, CSI-RS, and DMRS.

32. The method of claim 31, wherein, The related information of the second signal includes at least one of the following: Sequence format, sequence phase, initial sequence, scrambling sequence, and orthogonal mask of the sequence.

33. The method of claim 31, wherein, The second signal includes one or more of the following: SSB, CSI-RS, DMRS, message 2, message 4, and message B.

34. A node identification apparatus, characterized by Comprise: A first acquisition module configured to acquire first information related to a signal transmitted by a base station; A first determination module configured to determine one or more nodes associated with the base station according to the first information; The first acquisition module is further configured to receive a second signal transmitted by the base station to a first node, and related information of the second signal corresponds to the first node; Determine first information according to the second signal, wherein the first information includes related information of the second signal; The first determination module is further configured to determine one or more nodes associated with the base station according to the related information of the second signal; The node includes at least one of the following: A reconfigurable intelligent surface node; A relay node; An IAB node.

35. A node identification apparatus, comprising: Comprise: A processing module configured to change or control a feature of a first signal transmitted by a base station associated with the node; The feature change information of the first signal is associated with the information of the node; A second acquisition module configured to receive configuration information transmitted by the base station associated with the node; The configuration information indicates one or more of the following: The first association relationship; The second association relationship; The third association relationship; At least one of the following: time domain resource granularity, change period, time unit information of change, and starting position of the change period of the feature of the first signal changing with time domain resources; At least one of the following: change manner and frequency domain resource granularity of the feature of the first signal changing with frequency domain resources; The first association relationship includes an association relationship between a change rule of the feature of the first signal and an index of a node; The second association relationship includes an association relationship between related information of a second signal and an index of a node, and the second signal includes one or more of the following: SSB, CSI-RS, DMRS, message 2, message 4, and message B; The third association relationship includes an association relationship between a third signal and an index of a node, and the third signal includes one or more of the following: SSB, CSI-RS, and DMRS.

36. A node identification apparatus, comprising: Comprise: A fourth sending module configured to send a second signal to a first node associated with a base station, and related information of the second signal corresponds to the first node; A fifth sending module configured to send configuration information to the first node; The configuration information indicates one or more of the following: The first association relationship; The second association relationship; The third association relationship; at least one of a time domain resource granularity, a variation period, a time unit of variation, a starting position of the variation period of a characteristic of the first signal varying with a time domain resource, the first signal comprising at least one of: SSB, CSI-RS, system information block 1, DMRS, TRS; at least one of a variation manner, a frequency domain resource granularity of the characteristic of the first signal varying with a frequency domain resource; wherein the first association relationship comprises an association relationship between a variation rule of the characteristic of the first signal and an index of the node; the second association relationship comprises an association relationship between the related information of the second signal and an index of the node; the third association relationship comprises an association relationship between a third signal and an index of the node, the third signal comprising one or more of: SSB, CSI-RS, DMRS.

37. A terminal, characterized by comprising: a processor, a memory, and a program stored on the memory and executable on the processor, the program, when executed by the processor, implementing the steps of the method of any one of claims 1 to 22.

38. A network-side device, comprising: comprising: a processor, a memory, and a program stored on the memory and executable on the processor, the program, when executed by the processor, implementing the steps of the method of any one of claims 23 to 33.

39. A readable storage medium characterized by, a program or instructions stored on the readable storage medium, the program or instructions, when executed by a processor, implementing the steps of the method of any one of claims 1 to 33.

Images