CN117880080A - Parameter configuration method, data transmission method, RIS (radio resource identifier) equipment and base station - Google Patents

Abstract

The embodiment of the application discloses a parameter configuration method, a data transmission method, RIS equipment and a base station, wherein the parameter configuration method comprises the following steps: receiving a first signaling sent by a base station; the first signaling comprises first route information of the terminal equipment and first configuration parameters of corresponding reconfigurable intelligent surface equipment; the first configuration parameter is used for adjusting the reflected signal; and carrying out parameter configuration on the reconfigurable intelligent surface equipment based on the first route information and the first configuration parameters.

Description

Parameter configuration method, data transmission method, RIS (radio resource identifier) equipment and base station

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a parameter configuration method, a data transmission method, an RIS device, and a base station.

Background

Along with the continuous development of the information technology, the unmanned aerial vehicle is applied to building security, power line inspection, logistics transportation and the like, and is a hot spot for future intelligent application. However, the unmanned aerial vehicle generally accesses to a side lobe signal of a base station when flying in the air, the communication performance is limited, and the service quality provided by the unmanned aerial vehicle cannot be ensured.

Disclosure of Invention

The technical scheme is realized as follows:

The embodiment of the application provides a parameter configuration method applied to reconfigurable intelligent surface (Reconfigurable Intelligent Surfaces, RIS) equipment, which comprises the following steps:

receiving a first signaling sent by a base station; the first signaling comprises first route information of the terminal equipment and corresponding first configuration parameters of the RIS equipment; the first configuration parameter is used for adjusting the reflected signal;

and carrying out parameter configuration on the RIS equipment based on the first route information and the first configuration parameters.

The embodiment of the application provides a data transmission method, which is applied to a base station and comprises the following steps:

transmitting a first signaling to the RIS device; the first signaling comprises first route information of the terminal equipment and corresponding first configuration parameters of the RIS equipment; the first configuration parameter is used to adjust the reflected signal.

The embodiment of the application provides RIS equipment, which comprises a first receiving and transmitting device, a processing device and a storage device;

the first transceiver is configured to receive a first signaling sent by the base station; the first signaling comprises first route information of the terminal equipment and corresponding first configuration parameters of the RIS equipment;

The processing device is used for carrying out parameter configuration on the RIS equipment based on the first route information and the first configuration parameter;

the storage device is used for storing the travel time information of the plurality of sub-routes in the first route information and corresponding first configuration parameters.

The embodiment of the application provides a base station, which comprises a second transceiver device;

the second transceiver is used for sending a first signaling to the RIS equipment; the first signaling includes first route information of a terminal device and a first configuration parameter of the corresponding RIS device.

The embodiment of the application provides a computer readable storage medium, wherein computer executable instructions are stored in the computer readable storage medium, and the computer executable instructions are configured to execute the steps of the parameter configuration method or the steps of the data transmission method.

The embodiment of the application provides a parameter configuration method, a data transmission method, RIS equipment and a base station, wherein the parameter configuration method comprises the following steps: receiving a first signaling sent by a base station; the first signaling comprises first route information of the terminal equipment and first configuration parameters of the corresponding RIS equipment; the first configuration parameter is used for adjusting the reflected signal; and carrying out parameter configuration on the RIS equipment based on the first route information and the first configuration parameters.

Drawings

Fig. 1 is a schematic flow chart of a parameter configuration method provided in an embodiment of the present application;

fig. 2 is a flow chart of a data sending method provided in an embodiment of the present application;

fig. 3 is a schematic flow chart of a parameter configuration method and a data sending method provided in an embodiment of the present application;

fig. 4 is a schematic flow chart of a communication method of an unmanned aerial vehicle under the assistance of a novel RIS device provided in an embodiment of the present application;

FIG. 5 is a schematic diagram of the composition and structure of a RIS device according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a base station according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the present application will be further described with reference to the accompanying drawings, and the described embodiments should not be construed as limiting the present application, and all other embodiments obtained by those skilled in the art without making any inventive effort are within the scope of the present application.

In the following description, reference is made to "some embodiments\other embodiments" which describe a subset of all possible embodiments, but it is to be understood that "some embodiments\other embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.

In the following description, the terms "first", "second", and the like are merely used to distinguish between similar objects and do not represent a particular ordering of the objects, it being understood that the "first", "second", or the like may be interchanged with a particular order or precedence, as permitted, to enable embodiments of the present application described herein to be implemented in an order other than that illustrated or described herein.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of the present application only and is not intended to be limiting of the present application.

To accomplish the predefined task, the unmanned aerial vehicle may fly automatically in a fixed route or automatically in control segments. The unmanned aerial vehicle needs to be controlled when flying in the air, the third generation partnership project (3rd Generation Partnership Project,3GPP) has realized the enabling of a long term evolution system (Long Term Evolution, LTE) system to the unmanned aerial vehicle in Rel-15, and currently Rel-18 is realizing the enabling of a New Radio (NR) system to the unmanned aerial vehicle. As presently discussed in the standards organization, it is a definite technological trend to continue to support drones in future 6G wireless systems.

Because the cellular network is originally designed to serve the ground users, the main lobe of the base station radio frequency signal points to the ground direction, and the unmanned aerial vehicle can only access the side lobe signal of the base station. In order to serve an aerial unmanned aerial vehicle, one scheme is to reform a base station antenna which is recently arranged, so that the antenna of the base station points to the air when serving the unmanned aerial vehicle, but obviously, the reform has huge complexity and cost and lower feasibility.

In recent years, a totally new revolutionary technology called reconfigurable intelligent surface RIS has emerged, which is capable of significantly improving the performance of a wireless communication network by integrating a large number of low-cost passive reflection elements on one plane, intelligently changing the reflection amplitude and/or phase of signals through real-time parameter configuration to reconfigure the wireless propagation environment, cooperatively implementing the technology for directional signal enhancement, and is considered as one of the core technologies of the future 6G.

Based on the problems existing in the related art and in combination with the RIS technology, the embodiment of the present application provides a parameter configuration method, which is applied to the RIS device, as shown in fig. 1, and is a flow chart of the parameter configuration method provided in the embodiment of the present application, where the method includes the following steps:

S101, receiving a first signaling sent by a base station.

It should be noted that the first signaling includes first route information of the terminal device and a first configuration parameter of the corresponding RIS device. The first configuration parameter is used to adjust a reflected signal, which may be a reflected signal of a radio frequency signal transmitted by the base station to the RIS device. The first configuration parameter may be a parameter for adjusting the magnitude, direction, coverage, etc. of the reflected signal, such as curvature of the RIS, voltage of individual cells in the RIS, etc. The terminal device may be a flying device such as an unmanned aerial vehicle.

In some embodiments, the first route information may be route information to be traveled by the terminal device, which is acquired in advance by the base station. The first route information may include a plurality of first configuration parameters corresponding to different first route information may be the same or different. The RIS device may be preset near the first route of the terminal device in order to provide services for the terminal device.

In some embodiments, the first route information includes travel time information for a plurality of sub-routes. The travel time information may be a length of time or a period of time or the like that the terminal device spends traveling in the sub-route. The first configuration parameters may include a plurality of first paths, and if the route to be traveled by the terminal device is the first path, the first path may be divided into a plurality of sub-paths, where the time lengths or time periods corresponding to the different sub-paths are different, and the first configuration parameters corresponding to the different sub-paths may be the same or different. Thus, after obtaining the travel time information and the corresponding first configuration parameters of the sub-route, the travel time information and the corresponding first configuration parameters may be stored into a preset storage area, for example in a storage means of the RIS device.

It can be understood that, by storing the travel time information of the sub-route of the terminal device and the corresponding first configuration parameters in the preset storage area, the parameter configuration is performed on the RIS device directly based on the first configuration parameters corresponding to the stored travel time information in the subsequent travel process of the terminal device, without acquiring the first route information and the corresponding first configuration parameters of the terminal device from a base station, an unmanned aerial vehicle server or the like, so that the communication interaction flow can be reduced, and the service efficiency and the service quality of the RIS device can be improved.

S102, parameter configuration is carried out on the RIS equipment based on the first route information and the first configuration parameters.

In some embodiments, when the RIS device is configured based on the first route information and the first configuration parameters, the travel time information of different sub-routes and the corresponding first configuration parameters may be determined, so that the RIS device is configured according to the first configuration parameters corresponding to the travel time information.

In some embodiments, parameter configuration of the RIS device may be adjusting parameters related to the RIS device, such as the magnitude of the curvature of the RIS, the voltage amplitude of the unit cell of the RIS device, the current direction, etc. By carrying out parameter configuration on RIS equipment, the terminal equipment can be in the range of the radio frequency main lobe signal of the base station or access the radio frequency main lobe signal.

In the embodiment of the application, a first signaling sent by a base station is received; the first signaling comprises first route information of the terminal equipment and first configuration parameters of the corresponding RIS equipment; the first configuration parameter is used for adjusting the reflected signal; and carrying out parameter configuration on the RIS equipment based on the first route information and the first configuration parameters. Therefore, the first signaling comprises the first configuration parameter capable of adjusting the reflected signal, so that parameter configuration is carried out on the RIS equipment according to the first route information and the first configuration parameter, and the terminal equipment can be located in the coverage range of the radio frequency main lobe signal of the base station when traveling based on the first route information, thereby improving the communication performance of the terminal equipment and ensuring the service quality of the terminal equipment.

In some embodiments of the present application, the parameter configuration is performed on the RIS device according to the first route information and the first configuration parameter, that is, the above step S102 may be implemented through the following steps S1021 to S1023, and the following descriptions are given respectively.

S1021, acquiring first time information.

The first time information may be time information during the traveling of the terminal device, for example, may be a specific time point, for example, a time point when the terminal device starts traveling, or a certain time point during the traveling, or a time point when the traveling is about to end. For example, the first time information may be 10 minutes at 10 am, 14 minutes at 12 minutes at afternoon, etc.

In some embodiments, the RIS device is provided with a clock module by which specific first time information can be obtained, which clock module can be operated continuously after the RIS device is started, or after it is determined that the terminal device is starting to travel.

In some embodiments, the first signaling may carry information about the time at which the terminal device starts to travel, or after the first signaling is sent, the base station determines the time at which the terminal device starts to travel, and sends other signaling to the RIS device again, where the signaling includes information about the time at which the terminal device starts to travel, so that the RIS device can determine the time when the clock module is enabled according to the time information.

S1022, determining a second configuration parameter corresponding to the first time information from the first configuration parameters based on the first time information and the travel time information.

It should be noted that the second configuration parameter may be one or more of a plurality of first configuration parameters, and different travel time information may correspond to different first configuration parameters, so that the travel time information corresponding to the first time information may be determined first, and the second configuration parameter corresponding to the first time information may be determined according to the corresponding travel time information.

In some embodiments, in the case where the first time information is a specific time point and the travel time information is a time period, the travel time period corresponding to the first time information may be determined, for example, if the first time information is 15 points and 12 minutes, the travel time information in the first route information includes three periods: 15 points, 15 points 10 minutes), [15 points 10 minutes, 15 points 18 minutes), and [15 points 18 minutes, 15 points 30 minutes), the first time information 15 points 12 minutes corresponds to the second time period [15 points 10 minutes, 15 points 18 minutes), so that the configuration parameter corresponding to the second time period can be determined as the second configuration parameter corresponding to the first time information.

S1023, carrying out parameter configuration on the RIS equipment based on the second configuration parameters.

In some embodiments, when the parameter configuration is performed on the RIS device based on the second configuration parameter, if the current configuration parameter of the RIS device is different from the second configuration parameter, the current configuration parameter of the RIS device may be adjusted to the second configuration parameter; if the current configuration parameters of the RIS device are the same as the second configuration parameters, the current configuration parameters of the RIS device can be kept unchanged.

It can be understood that, based on the obtained first time information and the travel time information, a second configuration parameter corresponding to the current travel sub-route (current travel time information) of the terminal device can be rapidly determined, so that after parameter configuration is performed on the RIS device based on the second configuration parameter, the terminal device can be located in the coverage area of the radio frequency main lobe signal.

In some embodiments of the present application, after performing parameter configuration on the RIS device based on the first route information and the first configuration parameter, the following steps S201 to S202 may be further performed, and each step is described below separately.

S201, receiving a second signaling sent by the base station.

It should be noted that the second signaling includes a third configuration parameter. The third configuration parameter and the first configuration parameter may be different, as may the third configuration parameter and the second configuration parameter. The third configuration parameter may be used to adjust the reflected signal, e.g., to adjust the magnitude, direction, coverage, etc. of the reflected signal.

In some embodiments, the second signaling is different from the first signaling, and the second signaling may be signaling that is sent after the base station sends the first signaling to the RIS device. The second signaling may be sent by the base station after determining that the travel route of the terminal device deviates from the first route in the first route information, may be sent after determining that the terminal is not located in the coverage area of the radio frequency main lobe in the process of traveling along the first route, or may be sent after determining that the terminal device performs parameter configuration on the RIS device based on the first configuration parameter, and the terminal device is not located in the coverage area of the radio frequency main lobe yet. Here, the transmission timing of the second signaling is merely an exemplary illustration, which is not limited in this application.

In some embodiments, after the RIS device performs parameter configuration on the basis of the first route information and the corresponding first configuration parameter, the RIS device may further acquire feature information of the reflected signal, and send the feature information to the base station, where the feature information may be at least one of a size, a direction, and a coverage area. After receiving the characteristic information, the base station can determine whether the terminal equipment is currently in the coverage of the radio frequency main lobe.

S202, adjusting configuration parameters of the RIS equipment based on the third configuration parameters.

In some embodiments, adjusting the configuration parameters of the RIS device based on the third configuration parameters may be changing the current configuration parameters of the RIS device and adjusting the current configuration parameters to the third configuration parameters. The current configuration parameter of the RIS device may be a first configuration parameter, a second configuration parameter, or another configuration parameter different from the first configuration parameter (or the second configuration parameter).

In an exemplary embodiment, if the second signaling is sent by the base station after determining that the terminal device performs parameter configuration on the RIS device based on the first configuration parameter, the terminal device is still not located in the coverage area of the radio frequency main lobe, and the adjusting the current configuration parameter of the RIS device may be adjusting the first configuration parameter to the third configuration parameter.

It can be understood that by adjusting the configuration parameters of the RIS device according to the third configuration parameters, tuning configuration in the traveling process of the terminal device can be achieved, so that the problem that the terminal device still cannot be located in the coverage area of the radio frequency main lobe after the parameter configuration is performed on the RIS device or the terminal device deviates from the pre-stored first route only according to the first configuration parameters and the corresponding traveling time information stored in the preset storage area is avoided, and the communication capability of the terminal device is further improved.

In some embodiments of the present application, the terminal device may further obtain a first service requirement level of the terminal device, where the first service requirement level may be determined according to a quality requirement of an object that the terminal device provides the service, for example, the higher the quality requirement, the higher the first service requirement level. For example, if the quality requirement includes three of low, medium and high, the corresponding first service demand level may be primary, secondary and tertiary, respectively, with a greater number of levels indicating a higher service demand level.

In some embodiments, the first signaling may include first service requirement level information of the terminal device; in other embodiments, the first service requirement level information of the terminal device may also be information carried in other signaling sent after the base station resends the first signaling; in still other embodiments, the first service requirement level information of the terminal device may also be obtained in advance by the terminal device from a server corresponding to the terminal device. The manner in which the first service requirement level information of the terminal device is obtained is merely exemplary, which is not limited in this application.

In some embodiments, after the RIS device obtains the first service requirement level of the terminal device, if it is determined that the first service requirement level meets the first condition, the parameter configuration function of the RIS device may be turned off.

It should be noted that, the first condition may be that after the quality requirement of the object that provides the service by the terminal device is reduced, the first service requirement level is lower than the preset requirement level. For example, if the preset demand level is two-level, after the quality requirement of the object served by the terminal device is reduced, the first service demand level is reduced from three-level to one-level, and then the parameter configuration function of the RIS device can be closed, that is, the parameter configuration is not performed on the RIS device, and it is not necessary to ensure that the terminal device is located in the coverage area of the radio frequency main lobe in the running process.

It can be understood that, when the first service requirement level of the terminal device is determined to meet the first condition, the parameter configuration function of the RIS device is turned off, so that the performance consumption of the RIS device can be reduced, and efficient operation of other modules of the RIS device is ensured.

In some embodiments of the present application, if the first signaling includes information of a plurality of terminal devices, a second service requirement level and an execution task type of each terminal device are determined. The second service requirement level of the different terminal devices may be the same or different. The second service requirement level is similar to the first service requirement level, and may also be determined according to a quality requirement of an object that provides the service for the terminal device, which is not described herein. The type of task performed by the terminal device may include a joint task, which refers to a plurality of terminal devices cooperatively performing the same task, or a non-joint task, which may be a single task, such as one terminal device performing only one task.

In some embodiments, the RIS device may determine the target terminal device to be served by the RIS device based on the second service requirement level of each terminal device, or the type of task performed by each terminal device, or both the second service requirement level and the type of task performed by each terminal device.

For example, the RIS device may determine the terminal device with the highest second service requirement level as the target terminal device; or determining the terminal equipment for executing the joint task as a service object under the condition that the second service requirement levels of the terminal equipment are the same.

In some embodiments, after the RIS device determines the target terminal device to be served by the RIS device, the RIS device may perform parameter configuration on the RIS device based on the first route information and the first configuration parameter of the target terminal device, so as to provide a communication service for the target terminal device.

It can be appreciated that, according to the second service requirement level of the terminal device and/or the task type, the terminal device that most needs the RIS device to provide the communication service can be determined, so as to improve the service quality of the terminal device.

The embodiment of the application also provides a data sending method, which is applied to a base station, and as shown in fig. 2, a flow diagram of the data sending method provided in the embodiment of the application is shown, and the method includes:

S301, sending a first signaling to the RIS device.

It should be noted that the first signaling includes first route information of the terminal device and a first configuration parameter of the corresponding RIS device. The first configuration parameter is used to adjust the reflected signal. The reflected signal may be a reflected signal of a radio frequency signal transmitted by the base station to the RIS device. The first configuration parameter may be a parameter for adjusting the magnitude, direction, coverage, etc. of the reflected signal, such as curvature of the RIS, voltage of individual cells in the RIS, etc.

In some embodiments, the base station may acquire the first route information of the terminal device in advance, for example, may send an information acquisition request to a server of the terminal device, thereby acquiring the first route information of the terminal device.

In some embodiments, the first route information includes travel time information of a plurality of sub-routes, where the travel time information may be a time period or a time length occupied by the terminal device when traveling according to the sub-routes. After obtaining the travel time information of each sub-route, the base station can determine a first configuration parameter corresponding to each travel time information, so that the terminal equipment can be in the radio frequency main lobe range of the base station when traveling in the first route. After determining the respective first configuration parameters for each of the travel time information, first signaling may be generated based on the travel time information and the respective first configuration parameters.

In some embodiments, the base station may send the first signaling to the RIS device after generating the first signaling based on the travel time information of the different sub-routes and the corresponding first configuration parameters, or send the first signaling to the RIS device before determining that the terminal device is about to travel.

It can be understood that, because the first signaling includes the first configuration parameter for adjusting the reflected signal, the first signaling is sent to the RIS device, so that the RIS device can perform parameter configuration on the RIS device according to the first route information and the first configuration parameter, and the terminal device is ensured to be in the coverage of the radio frequency main lobe signal of the base station when traveling based on the first route information, thereby improving the communication performance of the terminal device and ensuring the service quality of the terminal device.

In some embodiments of the present application, after the base station sends the first signaling to the RIS device, the RIS device may perform parameter configuration on the RIS device based on the first route information and the corresponding first configuration parameter, and send, to the base station, characteristic information of a reflected signal of a radio frequency signal transmitted by the configured base station to the RIS device, where the characteristic information may be at least one of a size, a direction, and a coverage area.

In some embodiments, after receiving the characteristic information of the reflected signal fed back by the RIS device based on the first signaling, the base station may determine an access signal of the terminal device based on the characteristic information. The base station can determine whether the terminal setting is accessed to the radio frequency main lobe signal of the base station or is within the coverage range of the radio frequency main lobe signal of the base station according to the travelling route of the terminal equipment and combining the size, the direction, the coverage range and the like of the reflected signal.

In some embodiments of the present application, after sending the first signaling to the RIS device, the base station may further send a second signaling to the RIS device, where the second signaling is different from the first signaling, and the second signaling includes a third configuration parameter, where the third configuration parameter is different from the first configuration parameter.

In some embodiments, the second signaling may be sent by the base station after determining that the travel route of the terminal device deviates from the first route in the first route information, may be sent after determining that the terminal is not in the coverage area of the radio frequency main lobe during traveling along the first route, or may be sent after determining that the terminal device configures parameters of the RIS device based on the first configuration parameters, and the terminal device is not in the coverage area of the radio frequency main lobe yet. Here, the transmission timing of the second signaling is merely an exemplary illustration, which is not limited in this application.

In some embodiments, after the RIS device performs parameter configuration on the RIS device based on the first configuration parameter, if the base station determines that the terminal device is not connected to the radio frequency main lobe signal according to the transmission signal feature information fed back by the RIS device, the base station may send a second signaling to the RIS device, so that after the RIS device receives the second signaling, the configuration parameter of the RIS device is adjusted based on a third configuration parameter in the second signaling.

It can be understood that, under the condition that the terminal equipment is not in the coverage range of the radio frequency main lobe signal, the second signaling is sent to the RIS equipment, so that the RIS equipment can adjust the current configuration parameters of the RIS equipment based on the third configuration parameters in the second signaling, thereby realizing optimal configuration in the travelling process of the terminal equipment and further ensuring the communication performance of the terminal equipment.

In some embodiments of the present application, as shown in fig. 3, a flow chart of a parameter configuration method and a data transmission method provided in the embodiments of the present application is shown, and the method provided in the embodiments of the present application relates to an interaction process between an RIS device and a base station, and the method provided in the embodiments of the present application is described below with reference to fig. 3.

S401, the base station sends a first signaling to the RIS equipment.

In some embodiments, the base station may acquire the first route information of the terminal device in advance, for example, may send an information acquisition request to a server of the terminal device, thereby acquiring the first route information of the terminal device. The first route information includes travel time information of a plurality of sub-routes, and the travel time information may be a time period or a time length occupied by the terminal device when traveling according to the sub-routes. After obtaining the travel time information of each sub-route, the base station can determine a first configuration parameter corresponding to each travel time information, so that the terminal equipment can be in the radio frequency main lobe range of the base station when traveling in the first route. After determining the respective first configuration parameters for each of the travel time information, a first signaling may be generated based on the travel time information and the respective first configuration parameters and sent to the RIS device.

In some embodiments, the base station may send the first signaling to the RIS device directly after generating the first signaling based on the travel time information of the different sub-routes and the corresponding first configuration parameters, or send the first signaling to the RIS device before determining that the terminal device is about to travel.

S402, the RIS equipment receives a first signaling sent by the base station.

It should be noted that the first signaling includes first route information of the terminal device and a first configuration parameter of the corresponding RIS device. The first configuration parameter is used to adjust a reflected signal, which may be a reflected signal of a radio frequency signal transmitted by the base station to the RIS device. The first configuration parameter may be a parameter for adjusting the magnitude, direction, coverage, etc. of the reflected signal, such as curvature of the RIS, voltage of individual cells in the RIS, etc. The terminal device may be a flying device such as an unmanned aerial vehicle.

In some embodiments, the first route information may be route information to be traveled by the terminal device, which is acquired in advance by the base station. The first route information may include a plurality of first configuration parameters corresponding to different first route information may be the same or different. The RIS device may be preset near the first route of the terminal device in order to provide services for the terminal device.

In some embodiments, the first route information includes travel time information for a plurality of sub-routes. The travel time information may be a length of time or a period of time or the like that the terminal device spends traveling in the sub-route. The first configuration parameters may include a plurality of first paths, and if the route to be traveled by the terminal device is the first path, the first path may be divided into a plurality of sub-paths, where the time lengths or time periods corresponding to the different sub-paths are different, and the first configuration parameters corresponding to the different sub-paths may be the same or different. Thus, after obtaining the travel time information and the corresponding first configuration parameters of the sub-route, the travel time information and the corresponding first configuration parameters may be stored into a preset storage area, for example in a storage means of the RIS device.

It can be understood that, by storing the travel time information of the sub-route of the terminal device and the corresponding first configuration parameters in the preset storage area, the parameter configuration is performed on the RIS device directly based on the first configuration parameters corresponding to the stored travel time information in the subsequent travel process of the terminal device, without acquiring the first route information and the corresponding first configuration parameters of the terminal device from a base station, an unmanned aerial vehicle server or the like, so that the communication interaction flow can be reduced, and the service efficiency and the service quality of the RIS device can be improved.

S403, parameter configuration is carried out on the RIS equipment based on the first route information and the first configuration parameters.

In some embodiments, when the RIS device is configured based on the first route information and the first configuration parameters, the travel time information of different sub-routes and the corresponding first configuration parameters may be determined, so that the RIS device is configured according to the first configuration parameters corresponding to the travel time information.

In some embodiments, parameter configuration of the RIS device may be adjusting parameters related to the RIS device, such as the magnitude of the curvature of the RIS, the voltage amplitude of the unit cell of the RIS device, the current direction, etc. By carrying out parameter configuration on RIS equipment, the terminal equipment can be in the range of the radio frequency main lobe signal of the base station or access the radio frequency main lobe signal.

In the embodiment of the application, a base station sends a first signaling to RIS equipment; the RIS equipment receives a first signaling sent by a base station; the first signaling comprises first route information of the terminal equipment and first configuration parameters of the corresponding RIS equipment; the first configuration parameter is used for adjusting the reflected signal; the RIS equipment carries out parameter configuration on the RIS equipment based on the first route information and the first configuration parameters. Therefore, the RIS equipment carries out parameter configuration on the RIS equipment according to the first route information and the first configuration parameters, so that the terminal equipment can be positioned in the coverage range of the radio frequency main lobe signal of the base station when traveling based on the first route information, thereby improving the communication performance of the terminal equipment and ensuring the service quality of the terminal equipment.

Next, an implementation process of the application embodiment in an actual application scenario is described.

In some embodiments, as shown in fig. 4, a flow chart of a method for communication of a drone with assistance of a novel RIS device provided in an embodiment of the present application is shown, where the novel RIS device has storage, control and clock functions. The process flow of this method is described below with reference to fig. 4.

S501, the base station sends an information acquisition signaling to the unmanned aerial vehicle server, requesting to acquire the flight route information of the unmanned aerial vehicle (corresponding to the "first route information" in other embodiments).

In the embodiment of the present application, the drone (corresponding to the "terminal device" in other embodiments) uses the cellular network as the radio access service, and a specific high-order (high quality of service requirement) user needs high quality radio access. The network may be configured with a novel RIS device (corresponding to the "RIS device" in other embodiments) at a specific location as required, i.e. a plurality of novel RIS devices are provided in the flight area of the unmanned aerial vehicle, and the reflected signals of the novel RIS devices may cover the flight route of the unmanned aerial vehicle.

In some embodiments, the unmanned aerial vehicle server stores the flight route information of the unmanned aerial vehicle in advance, and the base station transmits information acquisition signaling for requesting acquisition of the flight route information of the unmanned aerial vehicle to the unmanned aerial vehicle server by transmitting the information acquisition signaling to the unmanned aerial vehicle.

S502, the unmanned aerial vehicle server feeds back flight route information of the unmanned aerial vehicle to the base station.

In some embodiments, the drone server may send the flight path information of the drone to the base station after receiving the information acquisition signaling sent by the base station.

S503, the base station sets RIS transmission coefficients corresponding to different time periods (corresponding to the "first configuration parameters" in other embodiments) based on the obtained flight path information, and sends configuration signaling to the novel RIS device (corresponding to the "send first signaling to reconfigurable intelligent surface device" in other embodiments).

In some embodiments, the base station presets reflection coefficients of all relevant novel RIS devices on the whole flight path according to the flight point location information of the unmanned aerial vehicle (corresponding to the first configuration parameters corresponding to the determined travel time information in other embodiments), so that the reflected signals can enable the unmanned aerial vehicle to access the radio frequency main lobe signals, and specific control information should include the RIS reflection coefficients to be applied by a certain novel RIS in a specific time period (corresponding to the travel time information in other embodiments), and corresponding relations between a series of time periods and the reflection coefficients are corresponding.

In some embodiments, the flight route information includes time periods corresponding to different sub-routes, where the time periods may be time periods occupied when the unmanned aerial vehicle flies in the sub-routes, for example, if the first route information includes three sub-routes: A. b, C the corresponding time period of the sub-route A is [9 points, 9 points and 10 minutes ], namely the unmanned aerial vehicle flies in the sub-route A between 9 points and 10 minutes; the corresponding time period of the sub-route B is [9 points 10 minutes, 9 points 15 minutes ], namely the unmanned plane flies in the sub-route B between the 9 points 10 minutes and the 9 points 15 minutes; the corresponding time period of the sub-route C is [9 points 15 min, 9 points 30 min ], namely the unmanned plane flies in the sub-route B between 9 points 15 min and 9 points 30 min.

In some embodiments, the base station may set corresponding RIS reflection coefficients for different time periods (sub-routes), and send configuration signaling to the new RIS device, where the configuration signaling includes time information and the corresponding RIS reflection coefficients, and the time information may be the time period. The configuration signaling comprises the set RIS emission coefficient and the corresponding time period, so that after the novel RIS device obtains the RIS reflection coefficient and the corresponding time period and configures the novel RIS device based on the RIS reflection coefficient, the unmanned aerial vehicle can be in the coverage range of the radio frequency main lobe when flying in the corresponding sub-route.

S504, the new RIS device stores different time periods and corresponding RIS reflection coefficients sent by the base station (corresponding to "store travel time information and corresponding first configuration parameters to a preset storage area" in other embodiments).

In some embodiments, a particular new RIS device stores relevant parameters and time information according to configuration signaling and then initiates application specific reflection coefficients for a specific period of time. That is, the new RIS device, after obtaining the RIS reflection coefficient and the corresponding time period transmitted by the new RIS device, may store the RIS reflection coefficient and the corresponding time period in its own storage area.

In some embodiments, after obtaining different time periods and corresponding RIS reflection coefficients, the new RIS device may activate the corresponding RIS reflection coefficients within a specific time period, i.e. parameter configuration is performed on the new RIS device based on the corresponding RIS reflection coefficients.

S505, the base station determines whether the unmanned aerial vehicle is in the coverage range of the radio frequency main lobe based on the new flight route of the unmanned aerial vehicle.

In some embodiments, after the novel RIS device performs parameter configuration on the novel RIS device based on the obtained RIS reflection information and the corresponding time period, the base station may compare the new flight route of the unmanned aerial vehicle with the main lobe coverage area of the RIS reflection, and determine whether the unmanned aerial vehicle is located in the radio frequency main lobe coverage area or outside the radio frequency main lobe coverage area. The new flight path may be obtained directly from the drone or from a drone server.

S506, if the base station determines that the unmanned aerial vehicle is out of the coverage range of the radio frequency main lobe, the base station sends dynamic reconfiguration signaling (equivalent to the second signaling in other embodiments) to the novel RIS equipment.

In some embodiments, including a new RIS reflection coefficient in the dynamic reconfiguration signaling may trigger the new RIS device to reset the RIS reflection coefficient so that the RIS main lobe reflection can again cover the route of the drone for the required period of time.

In some embodiments, if the base station identifies that the unmanned aerial vehicle flight point location offset exceeds the coverage of the reflected RIS main lobe (e.g., the network identifies that the unmanned aerial vehicle has accessed a side lobe of a remote cell, or that the wireless link quality of the unmanned aerial vehicle is below a certain threshold), then a dynamic reconfiguration signaling is sent to trigger the reset of the RIS reflection coefficient so that the RIS main lobe reflection can again cover the path of the unmanned aerial vehicle for the required period of time.

Future 6G systems have a high level of intelligence and have the ability to predict the maneuver state of the unmanned aerial vehicle. If the system is able to predict future changes in flight path and attitude of the drone, then instructions to modify the RIS reflection coefficient may be made in advance.

If the high QoS traffic demand of the relevant drone traffic drops, without having to access the main lobe coverage of the system all the time, the system may shut down the reflection function of the corresponding RIS (equivalent to "shut down the parameter configuration function of the reconfigurable smart surface device" in other embodiments).

If multiple unmanned aerial vehicles need RIS service at the same time, the service object can be determined according to the level of QoS requirement: unmanned aerial vehicles with high QoS requirements should be served first. If the QoS requirements of multiple drones are the same, then one drone may be randomly selected as the RIS service object. In the case of the same QoS requirements, a higher service priority may be given to the group of robots performing the joint task (having the same QoS requirements) than to a single drone.

It should be noted that the relevant signaling mentioned in the embodiments of the present application needs to be defined in the future 6G standard.

The embodiment of the application provides novel RIS equipment which has the functions of micro-storage, simple control and clock. The micro memory is characterized in that a reflection coefficient table preconfigured by the base station can be stored, the clock function is characterized in that time information can be acquired, the control function is characterized in that the time is acquired from the clock, and the reflection coefficient of a characteristic time point is read from the memory and is applied to the novel RIS equipment.

According to the unmanned aerial vehicle communication method assisted by the novel RIS equipment, aiming at the particularity of the known flight route of the unmanned aerial vehicle, the RIS reflection coefficient is preset, and then the RIS reflection coefficient is dynamically adjusted according to a specific event, so that the defect that a large amount of signaling is consumed to continuously and dynamically adjust the RIS reflection coefficient is overcome. Through intelligently configuring and adjusting the RIS reflection coefficient, the unmanned aerial vehicle can access the main lobe signal of the base station radio frequency, thereby obtaining better wireless access quality.

Fig. 5 is a schematic structural diagram of an RIS device provided in an embodiment of the present application, and as shown in fig. 5, an RIS device 600 includes:

A first transceiver 601, configured to receive a first signaling sent by a base station; the first signaling comprises first route information of the terminal equipment and corresponding first configuration parameters of the RIS equipment;

processing means 602, configured to perform parameter configuration on the RIS device based on the first route information and the first configuration parameter;

and a storage device 603, configured to store travel time information of a plurality of sub-routes in the first route information and corresponding first configuration parameters.

In some embodiments, the processing device 602 is further configured to obtain first time information; determining a second configuration parameter corresponding to the first time information from the first configuration parameters based on the first time information and the travel time information; and carrying out parameter configuration on the RIS equipment based on the second configuration parameters.

In some embodiments, the first transceiver 601 is further configured to receive second signaling sent by the base station; the second signaling includes a third configuration parameter; accordingly, the processing device 602 is further configured to adjust a configuration parameter of the RIS device based on the third configuration parameter.

In some embodiments, the processing device 602 is further configured to obtain characteristic information of the reflected signal; the characteristic information comprises at least one of size, direction and coverage; and sending the characteristic information to the base station.

In some embodiments, the processing apparatus 602 is further configured to obtain a first service requirement level of the terminal device; and if the first service demand level meets a first condition, closing a parameter configuration function of the RIS equipment.

In some embodiments, the processing apparatus 602 is further configured to determine a second service requirement level and an execution task type of each terminal device if the first signaling includes information of a plurality of terminal devices; determining target terminal equipment to be served by the RIS equipment based on the second service demand level and/or the execution task type; and carrying out parameter configuration on the RIS equipment based on the first route information and the first configuration parameters of the target terminal equipment.

Fig. 6 is a schematic structural diagram of a base station according to an embodiment of the present application, and as shown in fig. 6, a base station 700 includes:

a second transceiver 701, configured to send a first signaling to the RIS device; the first signaling includes first route information of a terminal device and a first configuration parameter of the corresponding RIS device.

In some embodiments, the second transceiver 701 is further configured to receive characteristic information of the reflected signal fed back by the RIS device based on the first signaling; the characteristic information comprises at least one of size, direction and coverage;

In some embodiments, the base station 700 further comprises data determining means for determining an access signal of the terminal device based on the characteristic information.

In some embodiments, the second transceiver 701 is further configured to obtain first route information of the terminal device, where the first route information includes travel time information of a plurality of sub-routes;

in some embodiments, the data determining device is further configured to determine a first configuration parameter corresponding to each travel time information; the first signaling is generated based on the travel time information and the corresponding first configuration parameters.

In some embodiments, the second transceiver 701 is further configured to send second signaling to the RIS device, where the second signaling includes a third configuration parameter.

It should be noted that, the descriptions of the RIS device and the base station in the embodiments of the present application are similar to those of the corresponding method embodiments described above, and have similar beneficial effects as those of the method embodiments, so that a detailed description is omitted. For technical details not disclosed in the embodiments of the present apparatus, please refer to the description of the embodiments of the method of the present application for understanding.

In the embodiment of the present application, if the above-mentioned parameter configuration method or data transmission method is implemented in the form of a software functional module, and sold or used as a separate product, the parameter configuration method or data transmission method may also be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be embodied essentially or in a part contributing to the related solution, in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read Only Memory (ROM), a magnetic disk, an optical disk, or other various media capable of storing program codes. Thus, embodiments of the present application are not limited to any specific combination of hardware and software.

Accordingly, the present embodiment provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the parameter configuration method or the data transmission method provided in the above embodiment.

The above description of the RIS device, base station and storage medium embodiments is similar to the description of the corresponding method embodiments described above, with similar advantageous effects as the method embodiments. For technical details not disclosed in the RIS device, base station and storage medium embodiments of the present application, please refer to the description of the method embodiments of the present application for understanding.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … … at least one" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above described device embodiments are only illustrative, e.g. the division of the units is only one logical function division, and there may be other divisions in practice, such as: multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. In addition, the various components shown or discussed may be coupled or directly coupled or communicatively coupled to each other via some interface, whether indirectly coupled or communicatively coupled to devices or units, whether electrically, mechanically, or otherwise.

The units described above as separate components may or may not be physically separate, and components shown as units may or may not be physical units; can be located in one place or distributed to a plurality of network units; some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may be separately used as one unit, or two or more units may be integrated in one unit; the integrated units may be implemented in hardware or in hardware plus software functional units.

One of ordinary skill in the art will appreciate that: all or part of the steps for implementing the above method embodiments may be implemented by hardware related to program instructions, and the foregoing program may be stored in a computer readable storage medium, where the program, when executed, performs steps including the above method embodiments; and the aforementioned storage medium includes: various media capable of storing program codes, such as a removable storage device, a ROM, a magnetic disk, or an optical disk.

Alternatively, the integrated units described above may be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product. Based on such understanding, the technical solutions of the embodiments of the present application may be embodied in essence or in a part contributing to the prior art in the form of a software product stored in a storage medium, including several instructions for causing a product to perform all or part of the methods described in the various embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a removable storage device, a ROM, a magnetic disk, or an optical disk.

The foregoing is merely an embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art will easily think about changes or substitutions within the technical scope of the present application, and should be covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A parameter configuration method is applied to reconfigurable intelligent surface RIS equipment, and comprises the following steps:

receiving a first signaling sent by a base station; the first signaling comprises first route information of the terminal equipment and corresponding first configuration parameters of the RIS equipment; the first configuration parameter is used for adjusting the reflected signal;

and carrying out parameter configuration on the RIS equipment based on the first route information and the first configuration parameters.

2. The method of claim 1, the first configuration parameter comprising a plurality, the first route information comprising travel time information for a plurality of sub-routes; the method further comprises the steps of:

and storing the travel time information and the corresponding first configuration parameters into a preset storage area.

3. The method of claim 2, wherein the parameter configuring the RIS device according to the first route information and the first configuration parameter comprises:

Acquiring first time information;

determining a second configuration parameter corresponding to the first time information from the first configuration parameters based on the first time information and the travel time information;

and carrying out parameter configuration on the RIS equipment based on the second configuration parameters.

4. The method of claim 1, further comprising:

receiving a second signaling sent by the base station; the second signaling includes a third configuration parameter;

and adjusting the configuration parameters of the RIS equipment based on the third configuration parameters.

5. The method of claim 1, further comprising:

acquiring characteristic information of the reflected signals; the characteristic information comprises at least one of size, direction and coverage;

and sending the characteristic information to the base station.

6. The method of claim 1, further comprising:

acquiring a first service demand level of the terminal equipment;

and if the first service demand level meets a first condition, closing a parameter configuration function of the RIS equipment.

7. The method of claim 1, further comprising:

if the first signaling comprises information of a plurality of terminal devices, determining a second service requirement level and an execution task type of each terminal device;

Determining target terminal equipment to be served by the RIS equipment based on the second service demand level and/or the execution task type;

and carrying out parameter configuration on the RIS equipment based on the first route information and the first configuration parameters of the target terminal equipment.

8. A data transmission method is applied to a base station and comprises the following steps:

transmitting a first signaling to the RIS device; the first signaling comprises first route information of the terminal equipment and corresponding first configuration parameters of the RIS equipment; the first configuration parameter is used to adjust the reflected signal.

9. An RIS device comprises a first transceiver, a processing device and a storage device;

the first transceiver is configured to receive a first signaling sent by the base station; the first signaling comprises first route information of the terminal equipment and corresponding first configuration parameters of the RIS equipment;

the processing device is used for carrying out parameter configuration on the RIS equipment based on the first route information and the first configuration parameter;

the storage device is used for storing the travel time information of the plurality of sub-routes in the first route information and corresponding first configuration parameters.

10. A base station comprising a second transceiving means;

The second transceiver is used for sending a first signaling to the RIS equipment; the first signaling includes first route information of a terminal device and a first configuration parameter of the corresponding RIS device.