Processing method, measurement method, device, apparatus, and computer storage medium

Abstract

The application discloses a processing method, a measuring method, a device, equipment and a computer storage medium. The method comprises the following steps: an RIS node sends a measurement report to a network side device, wherein the measurement report comprises information of an incident tilt angle of a first target cell; and / or the RIS node selects a second target cell according to the information of the incident tilt angle to initiate random access; wherein the incident tilt angle is determined according to an incident signal of the first target cell or the second target cell and a coordinate system defined based on a reflection panel of the RIS node.

Description

Technical Field

[0001] This application belongs to the field of communication technology, specifically relating to a processing method, measurement method, apparatus, device, and computer storage medium. Background Technology

[0002] The reflection characteristics of a reconfigurable intelligent surface (RIS) are affected by the incident angle of the incoming wave. For example, the larger the angle between the direction of the incoming wave and the normal direction of the RIS reflective panel (called the incident tilt angle), the smaller the reflection gain obtained by controlling the reflected beamforming, and the stronger the side lobes. Existing target cell selection only considers the signal strength of the reference signal. If the RIS selects the target cell based solely on signal strength, it will select a target cell with an excessively large incident tilt angle, resulting in poor RIS reflection performance. Summary of the Invention

[0003] This application provides a processing method, measurement method, apparatus, device, and computer storage medium that can solve the problem of poor reflection effect of RIS nodes due to unsuitable direction of incident signal from the selected target cell.

[0004] In a first aspect, a processing method is provided, comprising: a RIS node sending a measurement report to a network-side device, the measurement report including: information on the incident tilt angle of a first target cell; and / or, the RIS node selecting a second target cell to initiate random access based on the incident tilt angle information; wherein, the incident tilt angle is determined based on the incident signal of the first target cell or the second target cell and a coordinate system defined based on the reflector panel of the RIS node.

[0005] Secondly, a measurement method is provided, including:

[0006] The network-side device receives a measurement report from the RIS node, the measurement report including: information on the incident tilt angle of the first target cell; the incident tilt angle is determined based on the incident signal of the first target cell and a coordinate system defined based on the reflector panel of the RIS node.

[0007] Thirdly, a processing apparatus is provided, comprising:

[0008] The first sending module is configured to send a measurement report to the network-side equipment, the measurement report including: information on the incident tilt angle of the first target cell; and / or,

[0009] The access module is used to select a second target cell and initiate random access based on the incident tilt angle information;

[0010] The incident tilt angle is determined based on the incident signal of the first target cell or the second target cell and the coordinate system defined by the reflective panel based on the RIS node.

[0011] Fourthly, a measuring device is provided, comprising:

[0012] The third receiving module is used to receive a measurement report from the RIS node, the measurement report including: information on the incident tilt angle of the first target cell; the incident tilt angle is determined based on the incident signal of the first target cell and a coordinate system defined based on the reflector panel of the RIS node.

[0013] Fifthly, a communication device is provided, 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 described in the first or second aspect.

[0014] A sixth aspect provides a readable storage medium on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first or second aspect.

[0015] A seventh aspect provides a computer program / program product stored in a non-transient storage medium, the computer program / program product being executed by at least one processor to implement the steps of the processing method as described in the first or second aspect.

[0016] Eighthly, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being used to run programs or instructions to implement the processing method as described in the first or second aspect.

[0017] In this embodiment, the RIS node can report the incident tilt angle information of the first target cell to the network-side device, and / or the RIS node can select a second target cell to initiate random access based on the incident tilt angle information. This can ensure that the direction of the incident signal of the selected serving cell meets the reflection characteristics of the RIS node, effectively improve network coverage, and avoid the problem of poor reflection effect of the RIS node due to the unsuitable direction of the incident signal of the selected serving cell. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the RIS node structure;

[0019] Figure 2 This is a reflection diagram including RIS nodes;

[0020] Figure 3This is a flowchart of a processing method provided in an embodiment of this application;

[0021] Figure 4 This is a flowchart of a measurement method provided in an embodiment of this application;

[0022] Figure 5 This is a schematic diagram illustrating the target range of the reflection tilt angle of the RIS node.

[0023] Figure 6 This is a schematic diagram of a processing device provided in an embodiment of this application;

[0024] Figure 7 This is a schematic diagram of a cell measurement device provided in an embodiment of this application;

[0025] Figure 8 This is a schematic diagram of a communication device provided in an embodiment of this application. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0027] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specified order or sequence. It should be understood that such terms can be used interchangeably 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.

[0028] It is worth noting that the technologies described in this application are not limited to New Radio (NR) systems, 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. The following description describes NR systems for illustrative purposes, and NR terminology is used in most of the following description; however, these technologies can also be applied to applications other than NR systems, such as 6th generation (6G) wireless communication systems. th Generation 6G communication system.

[0029] To facilitate a better understanding of the embodiments of this application, the following technical points are introduced first:

[0030] I. Introduction to RIS

[0031] RIS can be implemented in different ways. RIS can be modeled as a RIS-Mobile Termination (MT) functional unit and a RIS-Reflection Surface Unit (RSU). Figure 1This paper illustrates the logical structure of a RIS node. The MT (Mediator) is used to establish a wireless connection between the RIS node and the serving base station. The RIS node sends measurement reports to the base station and reflection control signaling from the base station to the RIS node. The RIS-RSU (Reflection and Reflection Unit) is used for signal reflection and transmission between the base station and the UE, including the Synchronization Signal and PBCH (SSB) block, system messages, uplink / downlink proprietary signaling, uplink / downlink control channels, and uplink / downlink data signals. The RIS-MT may use a separate antenna or share an antenna on the RIS-RSU. A RIS-RSU control unit (e.g., a panel controller) connects the RIS-MT and the RIS-RSU. The RIS-MT sends received RIS-RSU control commands to the RIS-RSU control unit, which then controls the RIS-RSU. The base station can control the RIS-RSU's transmission parameters, including reflection beam parameters, by sending signaling to the RIS-MT to control the RIS-RSU.

[0032] Figure 2 An example of reflection on a RISC node is provided. Figure 2 The example illustrates the horizontal and vertical incident angles of the incident wave relative to the normal direction of the reflecting panel. The target range or threshold of the incident angle of the reference signal is the angle relative to the normal direction of the RIS-RSU. Assuming the RIS-RSU is deployed perpendicular to the ground, a three-dimensional coordinate system can be established with the direction perpendicular to the ground as the z-axis, the normal direction of the RIS-RSU as the y-axis, and the direction perpendicular to the YZ plane as the x-axis. The RIS node can report the incident angles of the incident beam in the vertical and horizontal directions in this three-dimensional coordinate system.

[0033] Where α refers to the vertical angle of incidence of the incident wave (or described as the vertical angle of incidence), β refers to the horizontal angle of incidence of the incident wave (or described as the horizontal angle of incidence), α1 refers to the vertical angle of incidence of the reflected wave (or described as the vertical angle of reflection), β1 refers to the horizontal angle of incidence of the reflected wave, "incoming direction" indicates the direction of incidence, "reflection direction" indicates the direction of reflection, and "blockage" indicates an obstacle.

[0034] II. Reflection Characteristics of RIS Nodes

[0035] Existing research results indicate that the reflection effect of RIS-RSU on incoming waves is affected by multiple factors, including the material of the reflective surface, the number of reflective elements contained in the RIS-RSU, the reflection shaping parameters of the RIS nodes, the frequency response characteristics of the RIS, and the direction of incoming waves.

[0036] For a given RIS-RSU, the range of reflected beam directions and gain that the RIS-RSU can support depends on the direction of the incident wave. The closer the incident wave is to the normal direction of the reflecting surface, the larger the range of reflection tilt angles that the RIS-RSU can support, and the stronger the reflection gain.

[0037] III. Principles for Selecting a Neighborhood

[0038] Similar to ordinary terminals (such as User Equipment, UE), RIS-MT requires a cell search, measurement, and selection process before accessing a base station. Existing UEs consider several factors when selecting a cell, such as the priority of Radio Access Technology (RAT), carrier priority, and the cell's reference signal strength. All other things being equal, the UE prioritizes cells with stronger signal strength to establish a radio connection and transmit data.

[0039] The direction of the incident wave relative to the RIS-RSU panel significantly affects the reflection performance of the RIS-RSU. If the RIS-MT cell measurement and selection directly reuses the existing UE cell selection principles, the difference in the incident direction from different candidate cells will be ignored during the cell selection process, and the candidate cell with the strongest signal will be selected directly. If the incident direction of the selected cell is not appropriate, the low reflection gain will offset the gain of the incident wave strength, resulting in a decrease in system performance.

[0040] See Figure 3 This application provides a processing method, the specific steps of which include: step 301.

[0041] Step 301: The RIS node sends a measurement report to the network-side device. The measurement report includes: information on the incident tilt angle of the first target cell; and / or, the RIS node selects a second target cell to initiate random access based on the incident tilt angle information; wherein, the incident tilt angle is determined based on the incident signal of the first target cell or the second target cell and the coordinate system defined based on the reflector panel of the RIS node.

[0042] It is understandable that the first target cell can be understood as the measurement cell, and the second target cell can be understood as the access cell. The first target cell and the second target cell can be the same cell or different cells.

[0043] Optionally, the information on the incident tilt angle includes one or more of the following:

[0044] (1) The incident tilt angle measured by the RIS node;

[0045] (2) The value of the reflection tilt angle or the range of the reflection tilt angle corresponding to the incident tilt angle;

[0046] (3) Range of incident tilt angle of RIS node.

[0047] In one embodiment of this application, the incident tilt angle includes one of the following:

[0048] (1) The angle between the incident signal of the first target cell or the second target cell and the reflective panel of the RIS node;

[0049] (2) The angle between the incident signal of the first target cell or the second target cell and the normal direction of the reflective panel of the RIS node;

[0050] (3) The vertical incident tilt angle and / or horizontal incident tilt angle of the incident signal of the first target cell or the second target cell with respect to the 3D coordinate system defined by the reflective panel of the RIS node.

[0051] In one embodiment of this application, the information of the incident tilt angle includes: the value of the reflection tilt angle corresponding to the incident tilt angle or the range of the reflection tilt angle; the method further includes:

[0052] The RIS node determines the range of its reflection tilt angle (or describes it as the working range of the reflection tilt angle) based on the incident tilt angle information, or based on the RIS node's position and the first target cell (such as the horizontal and vertical spatial information of the first target cell).

[0053] In one embodiment of this application, the incident tilt angle information includes: the range of incident tilt angles of the RIS node, and the method further includes:

[0054] The RIS node determines the target range of incident tilt angles that can cover the range of reflection tilt angles based on the target range of the first target cell configuration or predefined reflection tilt angles.

[0055] In one embodiment of this application, the measurement report further includes at least one of the following:

[0056] (1) Information of N first beams, the signal strength of the first beam is stronger than the signal strength of the other beams, and the incident tilt angle of the first beam is within the target range of the incident tilt angle.

[0057] (2) Information on M second beams, as well as the signal strength of the second beam and the corresponding incident tilt angle, wherein the signal strength of the second beam is stronger than the signal strength of the other beams;

[0058] (3) Information of K third beams, wherein the reference signal strength of the third beam is stronger than the reference signal strength of the other beams, and the incident tilt angle of the third beam is within the target range of the incident tilt angle.

[0059] Where N, M, and K are positive integers, and the target range of the incident tilt angle can be configured on the network side or pre-configured by the RIS.

[0060] In one embodiment of this application, the method further includes:

[0061] The RIS node receives first information from the network-side device, the first information including the configuration of the incident tilt angle, the configuration of the incident tilt angle including one or more of the following: an indication of whether to perform incident tilt angle measurement and / or reporting, physical layer filtering parameters, layer 3 filtering parameters, and target range of incident tilt angle.

[0062] In one embodiment of this application, the RIS node sends a measurement report to the network-side device, including any of the following methods:

[0063] Method 1: When the reference signal strength of the neighboring cell is greater than the fourth threshold and the incident tilt angle of the incident beam of the reference signal is within the target range of the incident tilt angle, the RIS node sends a measurement report to the network-side device.

[0064] Method 2: When the reference signal strength of the neighboring cell is greater than the fifth threshold, and the reflection tilt angle of the reflected beam corresponding to the incident beam of the reference signal is within the target range of the reflection tilt angle, the RIS node sends a measurement report to the network-side device.

[0065] The neighboring cells mentioned above are the adjacent cells of the cells currently covered by the RIS node.

[0066] In one embodiment of this application, the incident tilt angle of the incident beam of the reference signal of the second target cell is within the target range of the incident tilt angle, and the signal strength of the reference signal is at its maximum or greater than a sixth threshold.

[0067] In another embodiment of this application, the reflection tilt angle range of the reflected beam corresponding to the incident beam of the reference signal of the second target cell covers the target range of the reflection tilt angle, and the signal strength of the reference signal is at most or greater than the seventh threshold.

[0068] In another embodiment of this application, the reference signal strength of the second target cell is at most or greater than the eighth threshold.

[0069] In one embodiment of this application, the method further includes:

[0070] The RIS node receives the target range of the incident tilt angle from the network-side device.

[0071] The range of the incident tilt angle of a RIS node is equivalent to a capability of the RIS node, namely the working range of the incident tilt angle. The target range of the incident tilt angle is configured by the network-side device for the RIS node. The working range of the incident tilt angle of the RIS node may meet the target range of the incident tilt angle, or it may not meet the target range of the incident tilt angle.

[0072] In one embodiment of this application, when the reflection tilt angle range of the reflected beam corresponding to the incident beam of the reference signal of the second target cell covers the target range of the reflection tilt angle, and the signal strength of the reference signal is at its maximum or greater than a seventh threshold, the step of the RIS node selecting the second target cell to initiate random access based on the incident tilt angle information includes:

[0073] The RIS node determines whether the range of the reflection tilt angle of the first candidate cell is within the target range of the reflection tilt angle based on the incident tilt angle of the reference signal of the first candidate cell and the range of the adjustable reflection tilt angle corresponding to the incident tilt angle.

[0074] When the range of the reflection tilt angle corresponding to the first candidate cell is within the target range of the reflection tilt angle, the RIS node selects the first candidate cell as the second target cell to initiate random access, and the signal strength of the reference signal of the first candidate cell is greater than the seventh threshold.

[0075] In one embodiment of this application, when the range of the reflection tilt angle corresponding to the first candidate cell is within the target range of the reflection tilt angle, the step of the RIS node selecting the first candidate cell as the second target cell to initiate random access includes:

[0076] When the range of the reflection tilt angles of multiple first candidate cells is within the target range of the reflection tilt angle, the RIS node selects a second candidate cell from the multiple first candidate cells as the second target cell to initiate random access, and the second candidate cell has the largest reference signal strength.

[0077] In this embodiment, the RIS node can feed back the incident tilt angle information of the first target cell to the network-side device, and / or the RIS node can select the second target cell to initiate random access based on the incident tilt angle information. This can ensure that the direction of the incident signal of the selected serving cell meets the reflection characteristics of the RIS node, effectively improve network coverage, and avoid the problem of poor reflection effect of the RIS node due to the unsuitable direction of the incident signal of the selected serving cell.

[0078] See Figure 4 This application provides a measurement method, the specific steps of which include: step 401.

[0079] Step 401: The network-side device receives a measurement report from the RIS node, the measurement report including: information on the incident tilt angle of the first target cell; the incident tilt angle is determined based on the incident signal of the target cell and the coordinate system defined based on the reflector panel of the RIS node.

[0080] In one embodiment of this application, the incident tilt angle includes one of the following:

[0081] (1) The angle between the incident signal of the first target cell and the reflective panel of the RIS node;

[0082] (2) The angle between the incident signal of the first target cell and the normal direction of the reflective panel of the RIS node;

[0083] (3) The vertical and / or horizontal incident angles of the incident signal of the first target cell with the 3D coordinate system defined by the reflective panel of the RIS node.

[0084] In one embodiment of this application, the information on the incident tilt angle includes one or more of the following:

[0085] (1) The incident tilt angle measured by the RIS node;

[0086] (2) The value of the reflection tilt angle or the range of the reflection tilt angle corresponding to the incident tilt angle;

[0087] (3) Range of incident tilt angle of RIS node.

[0088] That is, the network-side device can receive from the RIS node a range of incident tilt angles corresponding to the target range that covers the first target cell configuration or a predefined reflection tilt angle.

[0089] In one embodiment of this application, the measurement report further includes at least one of the following:

[0090] (1) Information of N first beams, wherein the signal strength of the first beam is stronger than the signal strength of the other beams, and the incident tilt angle of the first beam is within the target range of the incident tilt angle.

[0091] (2) Information on M second beams, as well as the signal strength of the second beam and the corresponding incident tilt angle, wherein the signal strength of the second beam is stronger than the signal strength of the other beams;

[0092] (3) Information of K third beams, wherein the reference signal strength of the third beam is stronger than the reference signal strength of the other beams, and the incident tilt angle of the third beam is within the target range of the incident tilt angle.

[0093] Where N, M, and K are positive integers, and the target range of the incident tilt angle can be configured on the network side or pre-configured by the RIS.

[0094] In one embodiment of this application, the method further includes:

[0095] The network-side device sends first information to the RIS node, the first information including the configuration of the incident tilt angle, the configuration of the incident tilt angle including one or more of the following: an indication of whether to perform incident tilt angle measurement and / or reporting, physical layer filtering parameters, layer 3 filtering parameters, and target range of incident tilt angle.

[0096] In this embodiment, the RIS node can report the incident tilt angle of the first target cell to the network-side device. This ensures that the direction of the incident signal of the selected serving cell meets the reflection characteristics of the RIS node, effectively improving network coverage and avoiding the problem of poor reflection effect of the RIS node due to an unsuitable direction of the incident signal of the selected serving cell.

[0097] The implementation methods of this application are described below with reference to Embodiment 1 and Embodiment 2.

[0098] Example 1: Cell Measurement Configuration Based on Incident Tilt Angle

[0099] The measurement of the incident tilt angle can be part of the existing SSB beam or Channel State Information Reference Signal (CSI-RS) beam measurement configuration. When configuring the measurement of the RIS node, the base station can configure the measurement configuration related to the incident tilt angle (e.g., Measurement Object (MO)). For example, an indication of whether to measure the incident tilt angle can be added to the SSB or CSI-RS-based incident tilt angle measurement configuration.

[0100] Once the incident tilt angle measurement is configured, when the RIS node measures the SSB or CSI-RS, it needs to measure the incident tilt angle of the reference signal (e.g., SSB or CSI-RS) from the target cell under test, include the incident tilt angle in the measurement report, and send it to the target cell.

[0101] Optionally, the measurement configuration of the incident tilt angle may also include one or more of the following: filtering parameters of the physical layer, filtering parameters of layer 3, and a target range of the incident tilt angle, which is used by the RIS node to select the target measurement beam.

[0102] When determining the relevant information of the SSB or CSI-RS beam that needs to be reported, in addition to considering the received signal strength, it is also necessary to consider the magnitude of the incident tilt angle of the reference signal (such as SSB or CSI-RS) from the target cell.

[0103] Optionally, for a target area, the protocol can be predefined or the base station can configure the RIS node to determine the reporting method in one of the following ways:

[0104] (1) The RIS node reports the measured values ​​of the N (positive integer) incident beams with the strongest received signals within the target range, based on the incident tilt angle of the reference signal.

[0105] In other words, the base station can configure the RIS node to report the reference signal of the strongest beam receiving the signal, and the incident tilt angle is within the specified configuration range of N (positive integer) beams; the UE includes the signal strength and incident tilt angle value in the measurement report, where N can be pre-configured.

[0106] (2) The RIS node reports the M (positive integer) strongest incident beams, the signal strength of the beams, and the incident tilt angle.

[0107] (3) The RIS node determines the target range of the reflection tilt angle (i.e. the range of the angle between the reflected wave and the normal of the RIS-RSU). The working range of the reflection tilt angle of the RIS node is determined by the deployment location of the RIS node and the horizontal and vertical space that the RIS node needs to cover.

[0108] Based on the range of reflection tilt angles that need to be covered, the RIS node determines the target range corresponding to the incident tilt angle and reports the K (positive integer) beams of the reference signal with the strongest reported reference signal strength within the target range at the incident tilt angle of the reference signal.

[0109] The target range of the reflection tilt angle can be obtained by statistical analysis of the reflection tilt angle when serving the UE after the RIS node has been deployed for a period of time; or the RIS node can report the reflection tilt angle of the serving UE to the base station, and the base station can analyze and determine the target range of the reflection tilt angle of the RIS node after collecting enough data.

[0110] Optionally, for measurements of neighboring cells, the protocol can be predefined or the base station can configure RIS nodes to determine the reporting method in one of the following ways:

[0111] Method 1: Define a new measurement trigger event. When the RIS node is measuring neighboring cells, if it finds that the reference signal strength of a neighboring cell is higher than the pre-configured trigger condition and the incident tilt angle of the reference signal meets the target range of the incident tilt angle, the neighboring cell measurement reporting is triggered.

[0112] Method 2: Define a new measurement trigger event. When the RIS node is measuring a neighboring cell, if it finds that the reference signal strength of a neighboring cell meets the pre-configured triggering conditions and the reflected beam corresponding to the incident beam of the reference signal meets the target range, it triggers the neighboring cell measurement reporting.

[0113] It should be noted that the target range of the above-mentioned incident tilt angle can be represented by the maximum angle between the incident beam and the normal direction, or it can be defined by the maximum vertical incident tilt angle and the maximum horizontal incident tilt angle between the incident beam and the normal direction in the above-mentioned xyz coordinate system.

[0114] The target range of the aforementioned reflection tilt angle can be represented by the range of the angle between the reflected beam and the normal direction, or it can be defined by the range of the vertical reflection tilt angle (including the maximum and minimum values) and the range of the horizontal reflection tilt angle (including the maximum and minimum values) between the reflected beam and the normal direction as defined in the aforementioned xyz coordinate system. Figure 5 The example illustrates the target range of reflection tilt angles, where the vertical angle of the reflection tilt angle ranges from 0 to α. v The horizontal angle range of the reflection tilt angle is 0~α. h “RIS-RSU perpendicular direction” indicates the perpendicular direction of RIS-RSU.

[0115] Considering that the number of vertical (relative to the ground) and horizontal reflective elements of the RIS-RSU may differ, the target range based on the incident tilt angle can be defined and configured separately: the range of the vertical incident tilt angle and the range of the horizontal incident tilt angle.

[0116] The target range of the aforementioned incident tilt angle includes the range / threshold in the horizontal direction and the range / threshold in the vertical direction.

[0117] Optionally, the RIS node can report the working range of the corresponding reflection tilt angle when reporting the incident tilt angle.

[0118] Implementation Method 2: Cell Selection Method

[0119] When initiating initial access or when a radio link re-establishment occurs, the RIS node needs to re-search for and determine the target cell. The RIS node can determine the target cell by comprehensively considering the reference signal strength and the range of incident tilt angles of the candidate cells, and then initiate random access.

[0120] The RIS node determines the reference signal strength and incident tilt angle of the candidate cell, and selects the target cell to initiate random access in any of the following ways:

[0121] Method 1: When initiating initial access, the RIS node selects the first cell for access. The first reference signal in the first cell has the strongest signal strength, and the incident tilt angle of the first reference signal is within the target range.

[0122] Alternatively, the target range can be determined according to one or more of the following methods:

[0123] (a) When the RIS node was previously connected to the network, the target range for the RIS node storage was set by the network side;

[0124] (b) The target range specified by the type or performance parameters of the RIS node;

[0125] Method 2: The RIS node selects the second cell for access. The second reference signal in the second cell has the strongest signal strength, and the reflection tilt angle of the second reference signal can cover the target range of the reflection tilt angle.

[0126] (a) The RIS node determines whether the range of reflection tilt angles can cover the target range of the target reflection tilt angle based on the incident tilt angle of the reference signal of the candidate cell and the range of adjustable reflection tilt angles corresponding to the incident tilt angle.

[0127] (b) When the reference signals from multiple cells can be determined according to (a) to meet the requirements of the target working range of the reflection tilt angle, the candidate cell with the strongest reference signal strength is selected as the preferred target cell to initiate random access.

[0128] Method 3: When the RIS node cannot find a target cell with an incident tilt angle or reflection tilt angle that meets the requirements of the reference signal according to (Method 1) or (Method 2), the candidate cell with the strongest reference signal strength is selected as the target cell for access.

[0129] See Figure 6 This application provides a processing apparatus applied to a RIS node. The apparatus 600 includes:

[0130] The first sending module 601 is configured to send a measurement report to the network-side device, the measurement report including: information on the incident tilt angle of the first target cell; and / or,

[0131] Access module 602 is used to select a second target cell and initiate random access based on the incident tilt angle information;

[0132] The incident tilt angle is determined based on the incident signal of the first target cell or the second target cell and the coordinate system defined by the reflective panel based on the RIS node.

[0133] In one embodiment of this application, the incident tilt angle includes one of the following:

[0134] (1) The angle between the incident signal of the first target cell or the second target cell and the reflective panel of the RIS node;

[0135] (2) The angle between the incident signal of the first target cell or the second target cell and the normal direction of the reflective panel of the RIS node;

[0136] (3) The vertical incident tilt angle and / or horizontal incident tilt angle of the incident signal of the first target cell or the second target cell with respect to the 3D coordinate system defined by the reflective panel of the RIS node.

[0137] In one embodiment of this application, the information on the incident tilt angle includes: the value of the reflection tilt angle corresponding to the incident tilt angle or the range of the reflection tilt angle; the device further includes:

[0138] The first determining module is used to determine the range of the reflection tilt angle of the RIS node based on the incident tilt angle information, or the RIS node based on the position of the RIS node and the first target cell (such as the horizontal and vertical spatial information of the first target cell).

[0139] In one embodiment of this application, the incident tilt angle information includes: the range of incident tilt angles of the RIS node, and the device further includes:

[0140] The second determining module is used to determine the range of incident tilt angles that can cover the target range of the reflection tilt angles based on the target range of the target cell configuration or predefined reflection tilt angles.

[0141] In one embodiment of this application, the measurement report further includes at least one of the following:

[0142] (1) Information of N first beams, wherein the signal strength of the first beam is stronger than the signal strength of the other beams, and the incident tilt angle of the first beam is within the target range of the incident tilt angle.

[0143] (2) Information on M second beams, as well as the signal strength of the second beam and the corresponding incident tilt angle, wherein the signal strength of the second beam is stronger than the signal strength of the other beams;

[0144] (3) Information of K third beams, wherein the reference signal strength of the third beam is stronger than the reference signal strength of the other beams, and the incident tilt angle of the third beam is within the target range of the incident tilt angle.

[0145] Where N, M, and K are positive integers.

[0146] In one embodiment of this application, the apparatus further includes:

[0147] A first receiving module is configured to receive first information from the network-side device. The first information includes a configuration of the incident tilt angle, which includes one or more of the following: an indication of whether to perform an incident tilt angle measurement and / or reporting, physical layer filtering parameters, layer 3 filtering parameters, and a target range for the incident tilt angle.

[0148] In one embodiment of this application, the first sending module 601 is further configured to perform any of the following methods:

[0149] Method 1: When the reference signal strength of the neighboring cell is greater than the fourth threshold and the incident tilt angle of the incident beam of the reference signal is within the target range of the incident tilt angle, a measurement report is sent to the network-side device.

[0150] Method 2: When the reference signal strength of the neighboring cell is greater than the fifth threshold, and the reflection tilt angle of the reflected beam corresponding to the incident beam of the reference signal is within the target range of the reflection tilt angle, a measurement report is sent to the network-side device.

[0151] In one embodiment of this application, the incident tilt angle of the incident beam of the reference signal of the second target cell is within the target range of the incident tilt angle, and the signal strength of the reference signal is at its maximum or greater than a sixth threshold.

[0152] In another embodiment of this application, the reflection tilt angle range of the reflected beam corresponding to the incident beam of the reference signal of the second target cell covers the target range of the reflection tilt angle, and the signal strength of the reference signal is at most or greater than the seventh threshold.

[0153] In another embodiment of this application, the reference signal strength of the second target cell is at most or greater than the eighth threshold.

[0154] In one embodiment of this application, the apparatus further includes:

[0155] The second receiving module is used to receive the target range of the incident tilt angle from the network-side device.

[0156] In one embodiment of this application, when the reflection tilt angle range of the reflected beam corresponding to the incident beam of the reference signal of the second target cell covers the target range of the reflection tilt angle, and the signal strength of the reference signal is at its maximum or greater than a seventh threshold, the access module 602 is further configured to:

[0157] Based on the incident tilt angle of the reference signal of the first candidate cell and the range of the adjustable reflection tilt angle corresponding to the incident tilt angle, determine whether the range of the reflection tilt angle of the first candidate cell is within the target range of the reflection tilt angle.

[0158] If the range of the reflection tilt angle corresponding to the first candidate cell is within the target range of the reflection tilt angle, the first candidate cell is selected as the second target cell to initiate random access, and the signal strength of the reference signal of the first candidate cell is greater than the seventh threshold.

[0159] In one embodiment of this application, the access module 602 is further configured to:

[0160] When the range of reflection tilt angles of multiple first candidate cells is within the target range of reflection tilt angles, a second candidate cell is selected from the multiple first candidate cells as the second target cell to initiate random access, and the second candidate cell has the largest reference signal strength.

[0161] 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.

[0162] See Figure 7 This application provides a measurement device 700 applied to a network-side device, comprising:

[0163] The third receiving module 701 is used to receive a measurement report from the RIS node, the measurement report including: information on the incident tilt angle of the first target cell; the incident tilt angle is determined based on the incident signal of the first target cell and a coordinate system defined based on the reflector panel of the RIS node.

[0164] In one embodiment of this application, the incident tilt angle includes one of the following:

[0165] (1) The angle between the incident signal of the first target cell and the reflective panel of the RIS node;

[0166] (2) The angle between the incident signal of the first target cell and the normal direction of the reflective panel of the RIS node;

[0167] (3) The vertical and / or horizontal incident angles of the incident signal of the first target cell with the 3D coordinate system defined by the reflective panel of the RIS node.

[0168] In one embodiment of this application, the apparatus further includes:

[0169] Optionally, the information on the incident tilt angle includes one or more of the following:

[0170] (1) The incident tilt angle measured by the RIS node;

[0171] (2) The value of the reflection tilt angle or the range of the reflection tilt angle corresponding to the incident tilt angle;

[0172] (3) Range of incident tilt angle of RIS node.

[0173] In one embodiment of this application, the measurement report further includes at least one of the following:

[0174] (1) Information of N first beams, wherein the signal strength of the first beam is stronger than the signal strength of the other beams, and the incident tilt angle of the first beam is within the target range of the incident tilt angle.

[0175] (2) Information on M second beams, as well as the signal strength of the second beam and the corresponding incident tilt angle, wherein the signal strength of the second beam is stronger than the signal strength of the other beams;

[0176] (3) Information of K third beams, wherein the reference signal strength of the third beam is stronger than the reference signal strength of the other beams, and the incident tilt angle of the third beam is within the target range of the incident tilt angle.

[0177] Where N, M, and K are positive integers.

[0178] In one embodiment of this application, the apparatus further includes:

[0179] The second sending module is used to send first information to the RIS node. The first information includes the configuration of the incident tilt angle. The configuration of the incident tilt angle includes one or more of the following: an indication of whether to perform incident tilt angle measurement and / or reporting, physical layer filtering parameters, layer 3 filtering parameters, and target range of incident tilt angle.

[0180] 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.

[0181] Optional, such as Figure 8 As shown, this application embodiment also provides a communication device 800, including a processor 801, a memory 802, and a program or instructions stored in the memory 802 and executable on the processor 801. For example, when the communication device 800 is a RIS node, the program or instructions executed by the processor 801 implement the above-mentioned... Figure 3 The various processes in the method embodiments can achieve the same technical effect. When the communication device 800 is a network-side device, the program or instruction executed by the processor 801 implements the above. Figure 4 The various processes in the method embodiments can achieve the same technical effect, and will not be described again here to avoid repetition.

[0182] This application also provides a computer program / program product, which is stored in a non-volatile storage medium and executed by at least one processor to implement the following: Figure 3 or Figure 4 The steps of the processing method described above.

[0183] 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. Figure 3 or Figure 4 The various processes of the method embodiments shown can achieve the same technical effect, and will not be described again here to avoid repetition.

[0184] The processor mentioned above is the processor in the terminal or network-side device 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.

[0185] 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 programs or instructions to implement the above. Figure 3 or Figure 4 The various processes of the method embodiments shown can achieve the same technical effect, and will not be described again here to avoid repetition.

[0186] 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.

[0187] 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.

[0188] 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 computer 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.

[0189] 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 processing method, characterized in that, include: The configurable intelligent reflective surface (RIS) node sends a measurement report to the network-side device. The measurement report includes: information on the incident tilt angle of a first target cell; or, the RIS node selects a second target cell based on the incident tilt angle information to initiate random access. The incident tilt angle is determined based on the incident signal of the first target cell or the second target cell and the coordinate system defined by the reflective panel based on the RIS node.

2. The method according to claim 1, characterized in that, The incident tilt angle includes one of the following: The angle between the incident signal of the first target cell or the second target cell and the reflective panel of the RIS node; The angle between the incident signal of the first target cell or the second target cell and the normal direction of the reflective panel of the RIS node; The incident signal of the first target cell or the second target cell is relative to the vertical incident tilt angle and / or horizontal incident tilt angle of the 3D coordinate system defined by the reflective panel of the RIS node.

3. The method according to claim 1, characterized in that, The information about the incident tilt angle includes: the value of the reflection tilt angle corresponding to the incident tilt angle or the range of the reflection tilt angle; the method further includes: The RIS node determines the range of its reflection tilt angle based on the incident tilt angle information, or based on its location and the first target cell.

4. The method according to claim 1, characterized in that, The incident tilt angle information includes: the range of incident tilt angles of the RIS node, and the method further includes: The RIS node determines the range of incident tilt angles that can cover the target range of the reflection tilt angle based on the target range of the first target cell configured or predefined.

5. The method according to claim 1, characterized in that, The measurement report also includes at least one of the following: Information on N first beams, wherein the signal strength of the first beam is stronger than the signal strength of the other beams, and the incident tilt angle of the first beam is within the target range of the incident tilt angle; Information on M second beams, as well as the signal strength of the second beam and the corresponding incident tilt angle, wherein the signal strength of the second beam is stronger than the signal strength of the other beams; Information on K third beams, wherein the reference signal strength of the third beam is stronger than the reference signal strength of the other beams, and the incident tilt angle of the third beam is within the target range of the incident tilt angle; Where N, M, and K are positive integers.

6. The method according to claim 1, characterized in that, The method further includes: The RIS node receives first information from the network-side device, the first information including the configuration of the incident tilt angle, the configuration of the incident tilt angle including one or more of the following: an indication of whether to perform incident tilt angle measurement and / or reporting, physical layer filtering parameters, layer 3 filtering parameters, and target range of incident tilt angle.

7. The method according to claim 1, characterized in that, The RIS node sends a measurement report to the network-side device, including: If the reference signal strength of the neighboring cell is greater than the fourth threshold, and the incident tilt angle of the incident beam of the reference signal is within the target range of the incident tilt angle, the RIS node sends a measurement report to the network-side device. or, If the reference signal strength of a neighboring cell is greater than the fifth threshold, and the reflection tilt angle of the reflected beam corresponding to the incident beam of the reference signal is within the target range of the reflection tilt angle, the RIS node sends a measurement report to the network-side device.

8. The method according to claim 1, characterized in that, The incident tilt angle of the incident beam of the reference signal of the second target cell is within the target range of the incident tilt angle, and the signal strength of the reference signal is at its maximum or greater than the sixth threshold. or, The reflection tilt angle range of the reflected beam corresponding to the incident beam of the reference signal of the second target cell covers the target range of the reflection tilt angle, and the signal strength of the reference signal is at most or greater than the seventh threshold. or, The reference signal strength of the second target cell is the maximum or greater than the eighth threshold.

9. The method according to claim 5, 7, or 8, characterized in that, The method further includes: The RIS node receives the target range of the incident tilt angle from the network-side device.

10. The method according to claim 1, characterized in that, When the reflection tilt angle range of the reflected beam corresponding to the incident beam of the reference signal in the second target cell covers the target range of the reflection tilt angle, and the signal strength of the reference signal is at its maximum or greater than the seventh threshold, the RIS node selects the second target cell to initiate random access based on the incident tilt angle information, including: The RIS node determines whether the range of the reflection tilt angle of the first candidate cell is within the target range of the reflection tilt angle based on the incident tilt angle of the reference signal of the first candidate cell and the range of the adjustable reflection tilt angle corresponding to the incident tilt angle. When the range of the reflection tilt angle corresponding to the first candidate cell is within the target range of the reflection tilt angle, the RIS node selects the first candidate cell as the second target cell to initiate random access, and the signal strength of the reference signal of the first candidate cell is greater than the seventh threshold.

11. The method according to claim 10, characterized in that, When the range of the reflection tilt angle corresponding to the first candidate cell is within the target range of the reflection tilt angle, the step of the RIS node selecting the first candidate cell as the second target cell to initiate random access includes: When the range of the reflection tilt angles of multiple first candidate cells is within the target range of the reflection tilt angle, the RIS node selects a second candidate cell from the multiple first candidate cells as the second target cell to initiate random access, and the second candidate cell has the largest reference signal strength.

12. A measurement method, characterized in that, include: The network-side device receives a measurement report from the RIS node, the measurement report including: information on the incident tilt angle of the first target cell; The incident tilt angle is determined based on the incident signal of the first target cell and the coordinate system defined by the reflective panel based on the RIS node.

13. The method according to claim 12, characterized in that, The incident tilt angle includes one of the following: The angle between the incident signal of the first target cell and the reflective panel of the RIS node; The angle between the incident signal of the first target cell and the normal direction of the reflective panel of the RIS node; The incident signal of the first target cell is at the vertical and / or horizontal incident angles of the 3D coordinate system defined by the reflective panel of the RIS node.

14. The method according to claim 12, characterized in that, The information regarding the incident tilt angle includes one or more of the following: The value of the incident tilt angle measured by the RIS node; The value of the reflection tilt angle or the range of the reflection tilt angle corresponding to the incident tilt angle; The range of the incident tilt angle of the RIS node.

15. The method according to claim 12, characterized in that, The measurement report also includes at least one of the following: Information on N first beams, wherein the signal strength of the first beam is stronger than the signal strength of the other beams, and the incident tilt angle of the first beam is within the target range of the incident tilt angle; Information on M second beams, as well as the signal strength of the second beam and the corresponding incident tilt angle, wherein the signal strength of the second beam is stronger than the signal strength of the other beams; Information on K third beams, wherein the reference signal strength of the third beam is stronger than the reference signal strength of the other beams, and the incident tilt angle of the third beam is within the target range of the incident tilt angle; Where N, M, and K are positive integers.

16. The method according to claim 12, characterized in that, The method further includes: The network-side device sends first information to the RIS node, the first information including the configuration of the incident tilt angle, the configuration of the incident tilt angle including one or more of the following: an indication of whether to perform incident tilt angle measurement and / or reporting, physical layer filtering parameters, layer 3 filtering parameters, and target range of incident tilt angle.

17. A processing apparatus, characterized in that, include: The first sending module is used to send a measurement report to the network-side equipment, the measurement report including: information on the incident tilt angle of the first target cell; or, The access module is used to select a second target cell and initiate random access based on the incident tilt angle information; The incident tilt angle is determined based on the incident signal of the first target cell or the second target cell and the coordinate system defined by the reflective panel based on the RIS node.

18. The apparatus according to claim 17, characterized in that, The information on the incident tilt angle includes: the value of the reflection tilt angle corresponding to the incident tilt angle or the range of the reflection tilt angle; the device further includes: The first determining module is used to determine the range of the reflection tilt angle of the RIS node based on the incident tilt angle information, or based on the location of the RIS node and the first target cell.

19. The apparatus according to claim 17, characterized in that, The incident tilt angle information includes: the range of incident tilt angles of the RIS node, and the device further includes: The second determining module is used to determine the range of incident tilt angles that can cover the target range of the reflection tilt angle based on the target range of the first target cell configuration or predefined reflection tilt angle.

20. The apparatus according to claim 17, characterized in that, The device further includes: A first receiving module is configured to receive first information from the network-side device. The first information includes a configuration of the incident tilt angle, which includes one or more of the following: an indication of whether to perform an incident tilt angle measurement and / or reporting, physical layer filtering parameters, layer 3 filtering parameters, and a target range for the incident tilt angle.

21. The apparatus according to claim 17, characterized in that, The device further includes: The second receiving module is used to receive the target range of the incident tilt angle from the network-side device.

22. A measuring device, characterized in that, include: The third receiving module is used to receive a measurement report from the RIS node, the measurement report including: information on the incident tilt angle of the first target cell; The incident tilt angle is determined based on the incident signal of the first target cell and the coordinate system defined by the reflective panel based on the RIS node.

23. The apparatus according to claim 22, characterized in that, The device further includes: The second sending module is used to send first information to the RIS node. The first information includes the configuration of the incident tilt angle. The configuration of the incident tilt angle includes one or more of the following: an indication of whether to perform incident tilt angle measurement and / or reporting, physical layer filtering parameters, layer 3 filtering parameters, and target range of incident tilt angle.

24. A communication device, characterized in that, include: 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 any one of claims 1 to 16.

25. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the method as described in any one of claims 1 to 16.

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