Meteorological measurement method, device and system

Abstract

The invention discloses a meteorological measurement method, device and system, relates to the technical field of communication, and aims to solve the problems that meteorological services provided by meteorological detection equipment such as weather radars, rain gauges and meteorological satellites are unbalanced in supply distribution and large in updating time delay, and the surface precipitation cannot be accurately determined. The method comprises the steps that a receiving end receives a reference signal transmitted through a wireless channel, the reference signal is measured to obtain meteorological information, and then the receiving end reports the meteorological information to core network equipment. Correspondingly, the core network equipment receives the meteorological information reported by the receiving end, determines meteorological characteristic parameters based on the meteorological information, and further provides meteorological services corresponding to the meteorological characteristic parameters. Wherein the meteorological information is used for representing the meteorological characteristics of the wireless channel in the transmission process, and / or the channel state of the wireless channel under the to-be-measured weather. The scheme of the invention can be widely applied to the fields of communication technology, artificial intelligence, Internet of Vehicles, smart home networking and the like.

Description

Technical Field

[0001] The present application relates to the field of communications, and in particular to a meteorological measurement method, device and system. Background Art

[0002] Public meteorological services provide daily meteorological services to the public, so that the public can use public meteorological services to avoid meteorological risks and reduce losses caused by meteorological disasters. For example, people can avoid traveling in bad weather according to weather forecasts. However, public meteorological services cannot meet the meteorological services required by different industries. For example, public meteorological services can only provide large-scale weather forecasts, and cannot meet the meteorological services required by the urban transportation industry, such as short precipitation update delays and specific precipitation amounts corresponding to different regions.

[0003] Weather detection equipment such as weather radar, rain gauge, and meteorological satellite can obtain detection information of rainfall weather, and then determine precipitation and weather forecasts based on the acquired detection information. However, weather radar mainly detects clouds in the sky, which is suitable for measuring precipitation in high-altitude areas and cannot accurately determine surface precipitation; rain gauges have poor spatial representativeness and are easily disturbed by external factors (such as wind and obstructions), resulting in the inability to accurately determine surface precipitation; meteorological satellites have the problem of large delays in meteorological services. Furthermore, there is an imbalance in the distribution of meteorological detection equipment, resulting in uneven distribution of meteorological services provided and large update delays in some areas. Summary of the invention

[0004] The embodiments of the present application provide a meteorological measurement method, device and system to solve the problems of uneven supply distribution, large update delay, inability to accurately determine surface precipitation, etc. in meteorological services provided by meteorological detection equipment such as weather radars, rain gauges, and meteorological satellites.

[0005] In order to achieve the above objectives, this application adopts the following technical solutions:

[0006] In a first aspect, the present application provides a meteorological measurement method, which can be executed by a receiving end and a functional module or chip in the receiving end, and the method includes: the receiving end receives a reference signal transmitted through a wireless channel, then measures the reference signal to obtain meteorological information, and further reports the meteorological information to a core network device. The meteorological information is used to characterize the meteorological characteristics of the wireless channel during the transmission process, and / or the channel state of the wireless channel under the meteorological conditions to be measured.

[0007] Based on the method described in the first aspect, the receiving end further obtains meteorological information by measuring the received reference signal, and then reports the meteorological information to the core network device. The meteorological information is used to characterize the meteorological characteristics of the wireless channel during the transmission process, and / or to characterize the channel state of the wireless channel under the meteorological conditions to be measured. In this way, the core network device can determine the characteristic parameters of the meteorology based on the meteorological information to provide a meteorological service with balanced supply distribution, short update delay, and accurate determination of the characteristic parameters of the meteorology.

[0008] In one possible design, a receiving end receives a sensing request message for requesting measurement and reporting of meteorological information, and then, the receiving end receives a reference signal transmitted through a wireless channel according to the sensing request message. Based on this possible design, the receiving end receives a reference signal based on the request of the sensing request message to achieve the goal of reporting meteorological information.

[0009] In a possible design, the perception request message includes at least one of the following: a measurement type, a measurement amount, a measurement period, or a measurement duration; wherein the measurement type is used to indicate the type of weather to be measured; and the measurement amount is used to indicate the information that needs to be measured corresponding to the weather to be measured. Based on this possible design, the specific information included in the perception request message is given to facilitate the subsequent receiving end to measure and report the weather information.

[0010] In a possible design, the meteorological information includes at least one of the following: distance decoupling path loss information, path loss information caused by weather, link length, polarization information, direction information, or frequency information. Based on this possible design, detailed information included in the meteorological information is provided to facilitate the subsequent core network device to accurately determine the characteristic parameters of the meteorological service based on the meteorological information after receiving the meteorological information.

[0011] In a possible design, the path loss information caused by weather is determined by the receiving end according to at least one of the following: link attenuation, free space path loss, transmission path loss caused by water film, and noise. Based on this possible design, a method for determining the path loss information caused by weather is given to achieve the purpose of determining the path loss information caused by weather.

[0012] In a second aspect, the present application provides a meteorological measurement method, which can be executed by a core network device and a functional module or chip in the core network device, and the method includes: the core network device receives meteorological information reported by a receiving end, and determines characteristic parameters of the meteorology based on the meteorological information. The meteorological information is used to characterize the meteorological characteristics of the wireless channel during the transmission process, and / or the channel state of the wireless channel under the meteorology to be measured.

[0013] Based on the method described in the second aspect, the core network equipment can determine the characteristic parameters of the meteorology based on meteorological information to provide meteorological services with balanced supply distribution, short update delay, and accurate determination of the characteristic parameters of the meteorology.

[0014] In one possible design, the core network device sends a perception request message for requesting the receiving end to measure and report meteorological information. Based on this possible design, the core network device can achieve the purpose of obtaining meteorological information based on the sent perception request message.

[0015] In a possible design, the perception request message sent by the core network device includes at least one of the following: measurement type, measurement amount, measurement cycle, or measurement duration; the measurement type is used to indicate the type of weather to be measured; the measurement amount is used to indicate the information that needs to be measured corresponding to the weather to be measured. Based on this possible design, the specific information included in the perception request message sent by the core network device is given, so that the receiving end can measure and report the meteorological information requested by the perception request message according to the perception request message, and further, the core network device obtains the meteorological information to achieve the purpose of obtaining the meteorological information.

[0016] In one possible design, the meteorological information received by the core network device includes at least one of the following: distance decoupling path loss information, path loss information caused by weather, link length, polarization information, direction information, or frequency information. Based on this possible design, specific information included in the meteorological information of the core network device is given, so that the core network device can achieve the purpose of determining characteristic parameters of the weather based on the received meteorological information.

[0017] In a possible design, the path loss information caused by weather is determined by the receiving end according to at least one of the following: link attenuation, free space path loss, transmission path loss caused by water film, and noise. Based on this possible design, a method for determining the path loss information caused by weather in the weather information received by the core network device is given, so that the core network device can obtain the path loss information caused by weather.

[0018] In one possible design, the sending end is a terminal device and the receiving end is an access network device; or, the sending end is an access network device and the receiving end is a terminal device. Based on this possible design, the sending end and the receiving end can correspond to different devices, and the solution can be flexibly and diversely applied to different scenarios to improve the utilization rate of the solution.

[0019] In a third aspect, the present application provides a communication device, which may be a receiving end or a chip or system on chip in the receiving end, or a functional module in the receiving end for implementing the method in the first aspect or any possible design of the first aspect. The communication device may implement the functions performed by the receiving end in the above aspects or possible designs, and the functions may be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions. For example, the communication device may include a transceiver unit and a processing unit. Among them,

[0020] A transceiver unit, configured to receive a reference signal transmitted via a wireless channel;

[0021] A processing unit, configured to measure a reference signal to obtain meteorological information; the meteorological information is used to characterize meteorological characteristics of a wireless channel during transmission, and / or a channel state of the wireless channel under the meteorological conditions to be measured;

[0022] The transceiver unit is also used to report meteorological information to the core network equipment.

[0023] Specifically, the relevant description of meteorological information may refer to the first aspect or any possible design of the first aspect. At the same time, the execution actions of each unit of the communication device may refer to the first aspect or any possible design of the first aspect, and will not be repeated here.

[0024] In a fourth aspect, the present application provides a communication device, which may be a receiving end or a chip or system on chip in the receiving end. The communication device may implement the functions performed by the receiving end in the above-mentioned aspects or possible designs, and the functions may be implemented by hardware. In one possible design, the communication device includes a processor and a communication interface. Among them, the processor and the communication interface are used to support the communication device to execute the meteorological measurement method in the first aspect or any possible design of the first aspect. In another possible design, the communication device may also include a memory, the memory being used to store computer-executable instructions and data necessary for the communication device. When the communication device is running, the processor executes the computer-executable instructions stored in the memory so that the communication device executes the meteorological measurement method as described in the above-mentioned first aspect or any possible design of the first aspect.

[0025] In a fifth aspect, the present application provides a communication device, which may be a core network device or a chip or system on chip in a core network device, or a functional module in a core network device for implementing the second aspect or any possible design of the second aspect. The communication device may implement the functions performed by the core network device in the above aspects or possible designs, and the functions may be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions. For example, the communication device may include a transceiver unit and a processing unit. Among them,

[0026] A transceiver unit, used to receive meteorological information reported by a receiving end, where the meteorological information is used to characterize meteorological characteristics of the wireless channel during transmission and / or the channel state of the wireless channel under the meteorological conditions to be measured;

[0027] The processing unit is used to determine characteristic parameters of the weather based on the meteorological information.

[0028] Specifically, the relevant description of meteorological information may refer to the second aspect or any possible design of the second aspect. At the same time, the execution actions of each unit of the communication device may refer to the second aspect or any possible design of the second aspect, and will not be repeated here.

[0029] In a sixth aspect, the present application provides a communication device, which may be a core network device or a chip or system on chip in a core network device. The communication device may implement the functions performed by the core network device in the above aspects or possible designs, and the functions may be implemented by hardware. In one possible design, the communication device includes a processor and a communication interface. Among them, the processor and the communication interface are used to support the communication device to execute the meteorological measurement method in the second aspect or any possible design of the second aspect. In another possible design, the communication device may also include a memory, the memory being used to store computer-executable instructions and data necessary for the communication device. When the communication device is running, the processor executes the computer-executable instructions stored in the memory so that the communication device executes the meteorological measurement method in the above second aspect or any possible design of the second aspect.

[0030] In a seventh aspect, the present application provides a communication system, which includes the communication device provided in the third aspect or the fourth aspect, or the communication system includes the communication device provided in the fifth aspect or the sixth aspect.

[0031] In an eighth aspect, the present application provides a computer-readable storage medium storing computer instructions, which, when the computer instructions are executed on a computer, enable the computer to execute the meteorological measurement method in the first aspect or any possible design of the first aspect; or enable the computer to execute the meteorological measurement method in the second aspect or any possible design of the second aspect.

[0032] In a ninth aspect, the present application provides a computer program product comprising computer instructions, which, when executed on a computer, cause the computer to execute the meteorological measurement method in the first aspect or any possible design of the first aspect; or, cause the computer to execute the meteorological measurement method in the second aspect or any possible design of the second aspect.

[0033] Among them, the technical effects brought about by any one of the design methods in the third and fourth aspects can refer to the technical effects brought about by the first aspect or any possible design of the first aspect, and will not be repeated. The technical effects brought about by any one of the design methods in the fifth and sixth aspects can refer to the technical effects brought about by the second aspect or any possible design of the second aspect, and will not be repeated. The technical effects brought about by any one of the design methods in the seventh to ninth aspects can refer to the technical effects brought about by the first aspect or any possible design of the first aspect, or the technical effects brought about by any one of the design methods in the seventh to ninth aspects can refer to the technical effects brought about by the second aspect or any possible design of the second aspect, and will not be repeated. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1a A schematic diagram of a communication system provided in an embodiment of the present application;

[0035] Figure 1b A schematic diagram of a communication system provided in an embodiment of the present application;

[0036] Figure 2 A schematic diagram of a flow chart of a meteorological measurement method provided in an embodiment of the present application;

[0037] Figure 3 A schematic diagram of a flow chart of a meteorological measurement method provided in an embodiment of the present application;

[0038] Figure 4 A schematic diagram of the structure of a communication device provided by the present application;

[0039] Figure 5 A schematic diagram of the structure of a communication device provided by the present application;

[0040] Figure 6A schematic diagram of the structure of a communication device provided in this application. DETAILED DESCRIPTION

[0041] Before introducing the embodiments of the present application, some technical terms involved in the embodiments of the present application are explained. It should be noted that the following explanations are intended to make the embodiments of the present application easier to understand and should not be regarded as limiting the scope of protection required by the embodiments of the present application.

[0042] Meteorological detection and forecasting can refer to obtaining detection information of rainfall weather mainly by weather detection equipment such as weather radar, rain gauge or meteorological satellite, and then determining the surface rainfall and reconstructing the rainfall field based on the acquired detection information, and forecasting the weather within a certain period of time to people based on the determination and reconstruction results, so that users can refer to the meteorological forecast for user activities. Surface rainfall refers to the depth of the water layer that falls on a certain point or a certain unit area on the ground within a certain period of time. The rainfall field refers to dividing the detection area into multiple non-overlapping unit areas, each unit area corresponds to a specific surface rainfall, and the surface rainfall is used to indicate the depth of the water layer in the unit area within a certain period of time.

[0043] Weather radar is a radar specially used for atmospheric detection. It can detect rainfall over a large area continuously by detecting weather radar echoes, and can provide spatially continuous precipitation dynamic detection information. However, weather radar only supports detecting precipitation in high-altitude areas. The surface rainfall determined by weather radar is easily affected by factors such as vertical changes in precipitation and spatiotemporal changes in raindrop spectra, resulting in inaccurate surface rainfall.

[0044] A rain gauge is an instrument used to measure the amount of precipitation in a certain area over a period of time. It is suitable for determining surface precipitation in a small area. Therefore, the spatial representativeness of the surface precipitation determined by the rain gauge is poor, and the process of measuring precipitation by the rain gauge is easily disturbed by external factors (such as wind and obstructions), resulting in unstable and inaccurate surface precipitation. At the same time, determining surface precipitation in remote areas and / or complex terrain areas through rain gauges has the problem of high maintenance costs.

[0045] Meteorological satellites are artificial satellites used for meteorological observations. They support global rainfall measurements, but the communication distance between meteorological satellites and ground equipment is large, resulting in long delays in meteorological services. Low-orbit meteorological satellites pass over the same area twice a day at a fixed time, and cannot guarantee continuous observation of an area, resulting in the problem that the surface precipitation determined by geosynchronous meteorological satellites cannot support the construction of real-time rainfall fields.

[0046] From the above, we can see that the meteorological detection and forecasting by weather radar, rain gauge or meteorological satellite and other meteorological detection equipment, such as weather services such as natural disaster warning, rainfall forecast, rainfall assessment and other services, have deficiencies in the following aspects:

[0047] (1) There is an imbalance in the distribution of meteorological services provided by meteorological detection equipment. For example, in densely populated and economically prosperous areas, more meteorological detection equipment will be deployed to provide immediate and high-quality meteorological services to end users and / or equipment; in sparsely populated and economically backward areas, fewer meteorological detection equipment will be deployed due to the cost of configuring and maintaining meteorological detection equipment, resulting in insufficient meteorological services for end users and / or equipment.

[0048] (2) It is difficult for meteorological detection equipment to complete meteorological detection in complex terrain areas, resulting in the inability to estimate the impact of complex terrain areas on surrounding meteorological services. For example, Hengduan Mountain Area A will affect the meteorological services of counties and districts adjacent to Hengduan Mountain Area A and / or the cities to which Hengduan Mountain Area A belongs, causing the problem of unstable meteorological services.

[0049] (3) The meteorological services provided by meteorological detection equipment have a large update delay. For example, when the meteorological services provided by the weather radar need to be updated, the update delay of the weather radar includes: the time required for the radar detection signal to cover the detection area and the time for data transmission. The update delay is on the order of ten minutes.

[0050] In order to solve the problems of uneven supply distribution, large update delay, and inability to accurately determine surface precipitation in meteorological services provided by meteorological detection equipment such as weather radars, rain gauges, and meteorological satellites, the present application provides a meteorological measurement method, the method comprising: a receiving end receives a reference signal transmitted through a wireless channel, then measures the reference signal to obtain meteorological information, and further reports the meteorological information to a core network device. Correspondingly, the core network device receives the meteorological information reported by the receiving end, and determines the characteristic parameters of the meteorology based on the meteorological information. Among them, the meteorological information is used to characterize the meteorological characteristics of the wireless channel during the transmission process, and / or the channel state of the wireless channel under the meteorology to be measured. In this way, meteorological measurements based on cellular networks and determination of characteristic parameters of meteorology can make full use of the advantages of cellular networks such as wide distribution, low cost, and low transmission delay, to accurately determine surface precipitation and provide widely distributed meteorological services with short update delays. It should be understood that precipitation can be described interchangeably as rainfall.

[0051] The meteorological measurement method provided in the embodiment of the present application is described below in conjunction with the accompanying drawings.

[0052] The technical solution of the embodiment of the present application can be used in a cellular network. A cellular network is also called a mobile network or a mobile communication system or a wireless communication system (or simply a communication system). It is a mobile communication hardware architecture. The service area of ​​a mobile terminal device in a cellular network is divided into regular hexagonal sub-service areas. Each sub-service area is provided with a base station, forming a structure similar to a "honeycomb". This is why this mobile communication method is called a cellular mobile communication method. A cellular network is mainly composed of three parts: a mobile station, a base station subsystem (BSS), and a network subsystem. A mobile station is also called a mobile terminal device, which refers to a mobile device with wireless communication functions, such as a mobile phone, a tablet computer, etc. A base station subsystem is also called a base station device, which is responsible for sending and receiving wireless signals and wireless resource management, such as a mobile base station, a wireless transceiver, etc. The network subsystem is responsible for all functions related to terminal users, such as call connection processing, mobility management, user equipment and confidentiality, such as switches. A cellular network has the advantages of wide distribution, low cost, and low transmission delay.

[0053] Taking the cellular network replacement description as an example of a communication system, the communication system can be a third generation partnership project (3GPP) communication system, such as a long term evolution (LTE) system, or a fifth generation (5G) mobile communication system, a new radio (NR) system, a beyond 5G (B5G) mobile communication system, a sixth generation (6G) mobile communication system, a new radio vehicle to everything (NR V2X) system, and can also be applied to a system with a hybrid network of LTE and 5G, or a device-to-device (D2D) communication system, a machine-to-machine (M2M) communication system, an Internet of Things (IoT), and other next generation communication systems, and can also be a non-3GPP communication system without limitation. Figure 1a Taking the communication system shown as an example, the meteorological measurement method provided in the embodiment of the present application is described.

[0054] The technical solutions of the embodiments of the present application can be applied to various communication scenarios, for example, one or more of the following communication scenarios: enhanced mobile broadband (eMBB), ultra-reliable low latency communication (URLLC), machine type communication (MTC), massive machine type communications (mMTC), D2D, V2X, and IoT and other communication scenarios.

[0055] Figure 1a A schematic diagram of a communication system provided in an embodiment of the present application, such as Figure 1a As shown, the communication system 10 includes a terminal, an access network device, and a core network device. It is understandable that the devices in the communication system 10 can communicate directly or through forwarding by other devices, and this embodiment of the application does not specifically limit this.

[0056] Understandably, the above Figure 1a It is only a schematic diagram and does not constitute a limitation on the applicable scenarios of the technical solution provided in this application. Those skilled in the art should understand that in the specific implementation process, the communication system 10 may also include Figure 1a The communication system 10 may include fewer devices, or other devices. The number of devices in the communication system 10 may also be determined according to specific needs without limitation. Figure 1a The equipment in the system shown is described.

[0057] The terminal may be a terminal equipment (terminal equipment) or a user equipment (user equipment, UE) or a mobile station (mobile station, MS) or a mobile terminal (mobile terminal, MT), etc., including a handheld device with wireless communication function, a vehicle-mounted device, a wearable device or a computing device. Specifically, the terminal may be a mobile phone, a tablet computer or a computer with wireless transceiver function, or a virtual reality (virtual reality, VR) terminal, an augmented reality (augmented reality, AR) terminal, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in telemedicine, a wireless terminal in a smart grid, a wireless terminal in a smart city, a smart home, a vehicle-mounted terminal, etc. In the embodiment of the present application, the device for realizing the function of the terminal may be a terminal, or may be a device that can support the terminal to realize the function, such as a chip system (such as a chip, or a processing system composed of multiple chips) or a modem. The following takes the device for realizing the function of the terminal as an example to describe the meteorological measurement method provided in the embodiment of the present application.

[0058] The access network device is mainly used to implement the functions of resource scheduling, wireless resource management, wireless access control, etc. of the terminal. It is a device in the radio access network (RAN) that accesses the terminal to the wireless network. The RAN can be connected to the core network (for example, it can be the core network of LTE, or it can be the core network of 5G, etc.). The access network device can be an evolutionary base station (eNB or eNodeB) in LTE, or a base station in a 5G network or a future evolved public land mobile network (PLMN), a broadband network service gateway (BNG), an aggregation switch or a non-3GPP access device; or the access network device in the embodiment of the present application can also be a wireless controller in a cloud radio access network (CRAN); or a transmission and reception point (TRP), or a device including a TRP, etc., which is not specifically limited in the embodiment of the present application. Optionally, the access network device in the embodiment of the present application may include various forms of base stations, such as: macro base stations, micro base stations (also called small stations), relay stations, access points, etc., which are not specifically limited in the embodiment of the present application. In the embodiment of the present application, the device for realizing the function of the access network device may be the access network device, or may be a device capable of supporting the access network device to realize the function, such as a chip system (e.g., a processing system composed of one chip or multiple chips) or a modem. The following takes the device for realizing the function of the access network device as an example, and describes the meteorological measurement method provided in the embodiment of the present application.

[0059] Core network equipment is divided into control plane function (CP) equipment and user plane function (UP) equipment. The user plane equipment is mainly responsible for packet forwarding, quality of service (QoS) control, billing information statistics, etc., including user plane function (UPF); the control plane equipment is mainly responsible for business process interaction, issuing packet forwarding policies and QoS control policies to the user plane, including location management function (LMF), network data analysis function (NWDAF) network element, access and mobility management function (AMF) network element, session management function (SMF) network element, policy control function (PCF) network element, application function (AF) network element, network exposure function (NEF) network element, authentication server function (AUSF) network element, network slice selection function (NSSF) network element, network function storage function (NRF) network element, unified data management (UDM) network element.

[0060] For example, in the case where the reference signal in the technical solution of the embodiment of the present application is a positioning reference signal, a possible communication system architecture is as follows: Figure 1b The system architecture includes UE, next generation eNodeB (ng-eNB), next generation Node B (gNB), AMF and LMF.

[0061] Among them, UE is Figure 1a The terminal has the same function as the device. For detailed description, please refer to Figure 1a The description of the terminal in the example will not be repeated here.

[0062] Among them, ng-eNB and gNB are both RAN devices. Specifically, ng-eNB is a base station that supports eLTE and connects to the 5G core network, and gNB is a base station that supports NR. ng-eNB and gNB communicate through the Xn interface. It should be understood that ng-eNB and gNB are connected to Figure 1a The access network equipment has the same functions as the equipment. For detailed functional description, please refer to Figure 1a The description of the access network equipment will not be repeated here.

[0063] Among them, AMF is a core network equipment element, which is mainly responsible for registration management, connection management, access management, mobility management and various functions related to security and access management and authorization, so that UE can transmit data with LMF.

[0064] Among them, LMF is a core network equipment network element, which is mainly responsible for estimating the location of UE. Optionally, LMF network element can be replaced by other functional network elements for estimating the location of UE, such as evolved serving mobile location center (E-SMLC) and secure user plane location-location platform (SLP).

[0065] Among them, NR-Uu is the wireless link between UE and gNB, and UE and gNB communicate through NR-Uu.

[0066] Among them, LTE-Uu is the wireless link between UE and ng-eNB, and UE and ng-eNB communicate through NR-Uu.

[0067] Among them, NG-C is the wireless link between gNB and AMF, and between ng-eNB and AMF. gNB and AMF communicate through NG-C, and ng-eNB and AMF communicate through NG-C.

[0068] Among them, NLs is the wireless link between AMF and LMF, and AMF and LMF communicate through NLs.

[0069] Optional, Figure 1a Each device in the communication system (such as a terminal, an access network device, and a core network device) may also be referred to as a communication device, which may be a general device or a dedicated device, and the embodiments of the present application do not specifically limit this.

[0070] Optional, this application Figure 1aThe related functions of each device in the network can be implemented by one device, or by multiple devices together, or by one or more functional modules in one device, and the embodiments of the present application do not specifically limit this. It is understandable that the above functions can be network elements in hardware devices, or software functions running on dedicated hardware, or a combination of hardware and software, or virtualization functions instantiated on a platform (e.g., a cloud platform).

[0071] Combine the following Figure 1a The communication system shown describes the meteorological measurement method provided in the embodiment of the present application. The actions, terms, etc. involved in the following embodiments can refer to each other. The message name or parameter name in the message exchanged between devices in each embodiment is only an example, and other names can also be used in the specific implementation. For example, "corresponding" in the following embodiment can be replaced by "associated" and the like.

[0072] Figure 2 A schematic diagram of a meteorological measurement method provided in an embodiment of the present application is shown in FIG. Figure 2 As shown, this may include:

[0073] S201: The receiving end receives a reference signal.

[0074] Among them, the receiving end refers to a device for receiving a reference signal sent by the transmitting end, which can be a terminal or an access network device. The transmitting end refers to a device for sending a reference signal, which can be a terminal or an access network device. There is at least one combination of the receiving end and the transmitting end. The specific combination is determined according to the actual application scenario and is not limited in this application. For example, the receiving end is an access network device and the transmitting end is a terminal; or, the receiving end is a terminal and the transmitting end is an access network device.

[0075] Among them, the reference signal refers to a reference signal transmitted through a wireless channel between a transmitter and a receiver. The reference signal may include but is not limited to a reference signal specified in a communication standard. For example, the reference signal may be a channel state information-reference signal (channel state information-reference signal) used to measure the channel characteristics of a wireless channel between a transmitter and a receiver. The wireless channel may be alternatively described as a wireless link or link or a cellular network transmission link, etc. The channel characteristics may include but are not limited to the path loss or link attenuation of the channel, etc. In the present application, the reference signal is given a new purpose, and the reference signal is also used to measure and obtain meteorological information. In addition, the present application does not limit the naming of the reference signal, and the reference signal may also be called a reference signal or other names without limitation.

[0076] In one possible scenario, the reference signal may be a positioning reference signal in an uplink transmission scenario and / or a downlink transmission scenario. For example, in an uplink transmission scenario, the reference signal may be a sounding reference signal (SRS) sent by a base station to a terminal, and in a downlink transmission scenario, the reference signal may be a positioning reference signal (PRS) sent by a terminal to a base station.

[0077] S202: The receiving end measures the reference signal to obtain meteorological information.

[0078] Among them, the meteorological information is used to characterize the meteorological characteristics of the wireless channel during the transmission process, and / or the channel state of the wireless channel under the meteorological conditions to be measured. The meteorological information may include at least one of the following: distance decoupling path loss information, path loss information caused by weather, link length, polarization information, direction information, or frequency information.

[0079] In the present application, the meteorological information used to characterize the meteorological characteristics of the wireless channel during the transmission process can be understood as follows: the information in the wireless channel will change during the transmission process due to the influence of the meteorological information to be measured, and accordingly, the characteristics of the meteorological information can be characterized by the information of the changes in the wireless channel caused by the meteorological information to be measured during the transmission process. Therefore, the information of the changes in the wireless channel caused by the meteorological information to be measured can be called meteorological characteristics.

[0080] The meteorological conditions to be measured in this application include but are not limited to precipitation, snowfall, etc.

[0081] Among them, the distance decoupling path loss information is used to indicate the attenuation rate caused by weather. The attenuation rate refers to the ratio of the path loss information caused by weather to the link length. The path loss information caused by weather is used to indicate the link attenuation caused by weather. The link attenuation refers to the attenuation value of the power of the reference signal from the transmitter to the receiver. The link length is used to indicate the distance between the transmitter and the receiver. The polarization information is used to indicate the vibration direction of the radio wave. The direction information is used to indicate the direction of the propagation path. The frequency information is used to indicate the operating frequency of the reference signal or the transmitter.

[0082] Optionally, the receiving end measuring the reference signal to obtain the meteorological information may include: the receiving end measuring the reference signal to obtain the received power of the reference signal, and then obtaining the meteorological information according to the received power of the reference signal and the transmitted power of the reference signal.

[0083] In the present application, the path loss information caused by weather can be determined by the receiving end according to at least one of the following: link attenuation, free space path loss, transmission path loss caused by water film, and noise. For example, the path loss information caused by weather is equal to link attenuation minus free space path loss, transmission path loss caused by water film, and noise. Among them, free space path loss refers to the energy loss caused by the reference signal when it propagates in free space, the transmission path loss caused by water film refers to the energy loss caused to the reference signal by the water film wrapping outside the antenna, and noise refers to the energy loss caused to the reference signal by the wireless channel noise.

[0084] In the present application, the link attenuation value refers to the difference between the power when the receiving end receives the reference signal and the power when the transmitting end sends the reference signal. The power when the receiving end receives the reference signal can be referred to as the receiving power, and the power when the transmitting end sends the reference signal can be referred to as the transmitting power. In one possible way, the transmitting end sends the transmitting power to the receiving end through signaling, such as radio resource control (RRC) signaling, and then the receiving end determines the link attenuation value by subtracting the receiving power from the transmitting power. In another possible way, the power when the transmitting end sends the reference signal is a default value, and the default value has been stored in the receiving end, so the receiving end subtracts the receiving power from the default value to determine the link attenuation value. For example, assuming that the transmitting end is a base station and the receiving end is a terminal, the base station will send the transmitting power of the reference signal to the terminal through downlink control information (DCI), and then the terminal determines that the power when receiving the reference signal is 20dBm, and further, the terminal determines that the link attenuation value is 10dBm.

[0085] In this application, the link length can be obtained by measuring the reference signal at the receiving end, or can be further calculated by the core network device based on the location information of the receiving end and the sending end provided by the functional network element (for example, LMF). Figure 3 The embodiment shown.

[0086] In the present application, polarization information is used to indicate the horizontal polarization, vertical polarization, or other polarization direction of the reference signal. It should be understood that when the horizontal polarization, vertical polarization, or other polarization direction of the reference signal is agreed upon by the receiving end and the transmitting end, the polarization information may not be measured. When the receiving end is not sure about the horizontal polarization, vertical polarization, or other polarization direction of the reference signal sent by the transmitting end, the receiving end needs to measure the polarization information.

[0087] In this application, the direction information can be obtained by measuring the arrival angle of the reference signal by the receiving end, or can be further calculated by the core network device based on the position information of the receiving end and the sending end provided by the functional network element (for example, LMF). Figure 3 The embodiment shown.

[0088] In the present application, the frequency information does not need to be measured by the receiving end, and the frequency of the reference signal sent by the sending end or the operating frequency of the sending end can be understood as the default value agreed upon by the receiving end and the sending end.

[0089] S203: The receiving end reports the weather information to the core network device. Correspondingly, the core network device receives the weather information.

[0090] Optionally, the receiving end reports the weather information to the core network device in any of the following possible design methods:

[0091] One possible design method is that the receiving end obtains a perception request message sent by the core network device to request the receiving end to measure and report meteorological information. In response to the perception request message, the receiving end executes S201 and S203 to report the meteorological information to the core network device.

[0092] Another possible design is that the receiving end actively reports weather information to the core network device. For example, the receiving end reports weather information to the core network device at a fixed time or a preset time or a preset period. For example, in the case of a 12-hour day, the receiving end reports weather information to the core network device at 3 o'clock, 6 o'clock, 9 o'clock, and 12 o'clock.

[0093] S204: The core network device determines characteristic parameters of the weather based on the weather information.

[0094] The characteristic parameter of the meteorology corresponds to a parameter characterizing the meteorology to be measured. For example, when the meteorology to be measured is precipitation, the characteristic parameter of the meteorology may be a precipitation rate. For a description of the meteorological information, see S202.

[0095] Specifically, the core network device determines the characteristic parameters of the weather based on the weather information, including: the core network device brings the specific weather information into the method for determining the characteristic parameters of the weather according to the specific weather information to obtain the characteristic parameters of the weather. The method for determining the characteristic parameters of the weather according to the specific weather information is an existing method.

[0096] For example, assuming that the meteorological data to be measured is precipitation, the meteorological information is precipitation information, including distance decoupled path loss information, and the characteristic parameter of the meteorological data is the precipitation rate, the core network device brings the distance decoupled path loss information into the method based on empirical information to obtain the precipitation rate. Among them, the method based on empirical information is an existing method for determining the precipitation rate based on the distance decoupled path loss information and the precipitation parameters corresponding to the precipitation type.

[0097] Furthermore, the core network equipment may provide meteorological services corresponding to the meteorological characteristic parameters based on the meteorological characteristic parameters.

[0098] For example, when the meteorological information to be measured is precipitation, the meteorological information may be precipitation information, the characteristic parameter of the meteorological information may be precipitation rate, and the meteorological service corresponding to the precipitation rate may be meteorological services such as determining surface precipitation, reconstructing precipitation field, and constructing high-precision rain field inversion. Specifically, the core network device may determine the precipitation rate based on precipitation information by referring to the following method. Figure 3 Step S305 is shown.

[0099] based on Figure 2 In the method shown, the receiving end receives a reference signal, then measures the reference signal, obtains meteorological information used to characterize the meteorological characteristics of the wireless channel during transmission, and / or meteorological information of the channel state of the wireless channel under the meteorological conditions to be measured, and further reports the meteorological information to the core network device. Correspondingly, the core network device receives the meteorological information, determines the characteristic parameters of the meteorology based on the meteorological information, and further provides meteorological services corresponding to the characteristic parameters of the meteorology. In this way, through the cellular mobile communication mode between the sending end, the receiving end, and the core network device, a meteorological service with balanced supply distribution, small update delay, and accurate determination of the characteristic parameters of the meteorology is achieved.

[0100] The type of weather to be measured may include but is not limited to precipitation and snowfall. When the type of weather to be measured is precipitation, the weather information can be replaced with precipitation information. The following example takes the replacement of the weather information with precipitation information, the receiving end is a base station, the sending end is a terminal, and after the receiving end obtains the perception request message, it reports precipitation information to the core network device, and the characteristic parameter of precipitation corresponds to the precipitation rate. Figure 3 right Figure 2 The meteorological measurement method shown is introduced.

[0101] Figure 3 A schematic diagram of a meteorological measurement method provided in an embodiment of the present application is shown in FIG. Figure 2 As shown, the method may include:

[0102] S301: The core network device sends a perception request message to the base station. Correspondingly, the base station receives the perception request message.

[0103] Among them, the perception request message is used to request the base station to measure and report precipitation information, including at least one of the following: measurement type, measurement amount, measurement cycle, or measurement duration.

[0104] Specifically, the measurement type is used to indicate that the type of meteorology to be measured is precipitation.

[0105] The measurement quantity is used to indicate the information that needs to be measured corresponding to precipitation, such as at least one of the following information: distance decoupling path loss information, path loss information caused by precipitation, link length, polarization information, direction information, etc.

[0106] The measurement period is used to indicate the interval between two measurements, for example, 10 minutes.

[0107] Measurement duration, used to indicate the total duration of the measurement, for example, 60 minutes.

[0108] S302: The terminal sends a reference signal. Correspondingly, the base station responds to the sensing request message and receives the reference signal.

[0109] The reference signal refers to a reference signal transmitted through a wireless channel between a terminal and a base station, including but not limited to electromagnetic waves.

[0110] Specifically, the terminal sends a reference signal to the base station, and correspondingly, the base station receives the reference signal sent by the terminal.

[0111] It should be understood that the present application does not limit the number of terminals that send reference signals to the base station.

[0112] In one possible scenario, a single terminal sends a reference signal to a base station. Accordingly, the base station receives the reference signal sent by the terminal. Subsequently, precipitation information determined by the base station corresponds to precipitation information of a communication link environment between the terminal and the base station.

[0113] For example, terminal 1 sends an electromagnetic wave as a reference signal to the base station. Correspondingly, the base station receives the electromagnetic wave sent by the terminal, and the subsequent path loss information caused by precipitation determined by the base station corresponds to the path loss information caused by precipitation on the communication link between the terminal and the base station.

[0114] In another possible situation, at least one terminal sends a reference signal to the base station. Accordingly, the base station receives the reference signal sent by at least one terminal, and subsequently the base station determines precipitation information of different communication link environments between different terminals and the base station respectively.

[0115] For example, terminal 1 sends electromagnetic wave 1 as a reference signal to the base station, and terminal 2 sends electromagnetic wave 2 as a reference signal to the base station. Correspondingly, the base station receives electromagnetic wave 1 and electromagnetic wave 2, and the subsequent road damage information caused by precipitation determined by the base station includes road damage information 1 caused by precipitation and road damage information 2 caused by precipitation. Road damage information 1 caused by precipitation refers to the road damage information caused by precipitation on the communication link between terminal 1 and the base station, and road damage information 2 caused by precipitation refers to the road damage information caused by precipitation on the communication link between terminal 2 and the base station.

[0116] S303: The base station determines precipitation information based on the reference signal.

[0117] The precipitation information is used to characterize the precipitation characteristics of the wireless channel between the terminal and the base station during the transmission process, and / or the channel state of the wireless channel between the terminal and the base station under precipitation, including at least one of the following: distance decoupling path loss information, path loss information caused by precipitation, link length, polarization information, direction information, or frequency information. The detailed explanation of each information is as follows:

[0118] (1) Distance decoupling path loss information

[0119] The distance decouples the path loss information and is used to indicate the attenuation rate caused by precipitation; the attenuation rate refers to the ratio of the path loss information caused by precipitation to the link length.

[0120] Specifically, the method for determining the distance decoupling path loss information includes: dividing the path loss information caused by precipitation by the link length. Therefore, the model of the distance decoupling path loss information can be expressed as:

[0121] γ rain =A r (t) / L (1)

[0122] In formula (1), γ rain Indicates distance decoupling path loss information; A r (t) represents the path loss information caused by precipitation; L represents the link length.

[0123] It should be understood that the present application does not limit the manner of determining the distance decoupling path loss information. For example, the distance decoupling path loss information may be determined by a base station, or the distance decoupling path loss information may be determined by a core network device.

[0124] In one possible manner, the base station determines the distance decoupling path loss information, including: the base station first determines the path loss information caused by precipitation and the link length, and then determines the distance decoupling path loss information.

[0125] Exemplarily, terminal 1 sends an electromagnetic wave as a reference signal to the base station. Accordingly, the base station receives the electromagnetic wave and determines that the path loss information caused by precipitation is 10dBm and the link length is 10m. Therefore, the base station can determine that the distance decoupling path loss information is 1dBm / m.

[0126] Another possible manner is that the core network device determines the distance decoupling path loss information, including: after the core network device obtains the path loss information caused by precipitation and the link length, it determines the distance decoupling path loss information.

[0127] Exemplarily, the precipitation information reported by the base station to the core network device includes the path loss information caused by precipitation being 10 dBm and the link length being 20 m. The core network device receives the precipitation information and determines that the distance decoupling path loss information is 0.5 dBm / m.

[0128] (2) Road damage information caused by precipitation

[0129] The path loss information caused by precipitation is used to indicate the link attenuation caused by precipitation; the link attenuation refers to the attenuation value of the power of the reference signal from the terminal to the base station.

[0130] Specifically, the path loss information caused by precipitation is determined by the base station according to at least one of the following: link attenuation, free space path loss, transmission path loss caused by water film, and noise. The determination method includes: link attenuation minus free space path loss, minus transmission path loss caused by water film, and minus noise. Therefore, the model of the path loss information caused by precipitation can be expressed as:

[0131] A r (t) = A(t) - A WA (t)-A BL -N(t) (2)

[0132] In formula (2), A r (t) represents the path loss information caused by precipitation; A(t) represents the link attenuation, which refers to the attenuation value of the reference signal power from the terminal to the base station; A WA (t) represents the free space path loss; A BL represents the transmission path loss caused by water film; N(t) represents noise.

[0133] In formula (2), A WA (t), A BL , N(t) can be calculated using an existing model, and A(t) can be calculated by the base station based on the transmit power of the reference signal and the receive power of the reference signal.

[0134] It should be understood that the present application does not limit the method of determining link attenuation. For example, the terminal first sends the transmit power of the reference signal to the base station through signaling, and then the base station determines A(t); or, the transmit power of the reference signal sent by the terminal to the base station is a default value, which is stored in the base station, and then the base station determines A(t).

[0135] Exemplarily, the terminal sends the power when sending the reference signal (which can be simply referred to as the sending power) to the base station through RRC signaling. Subsequently, the base station measures the power when receiving the reference signal (which can be simply referred to as the receiving power). Further, the base station subtracts the receiving power from the sending power to obtain A(t).

[0136] Exemplarily, the power when the terminal sends a reference signal (which can be simply referred to as the sending power) is a default value, and the default value has been stored in the base station. Subsequently, the base station measures the power when receiving the reference signal (which can be simply referred to as the receiving power). Further, the base station subtracts the receiving power from the default value to obtain A(t).

[0137] (3) Link length

[0138] Link length is used to indicate the path length between the terminal and the base station.

[0139] It should be understood that the transmission scenario for determining the link length in this application can be applied to uplink transmission scenarios or downlink transmission scenarios. In the uplink transmission scenario, the base station measures the SRS sent by the terminal to further determine the link length between the base station and the terminal. In the downlink transmission scenario, the terminal measures the PRS sent by the base station to further determine the link length between the terminal and the base station.

[0140] It should be understood that, when the SRS or PRS is used as a reference signal, the SRS or PRS is not only used to determine the link length, but also can be used to determine the link attenuation.

[0141] For example, in an uplink transmission scenario, the reference signal sent by the terminal to the base station is SRS, and the corresponding base station receives and measures SRS. A possible measurement method is to obtain a correlation spectrum by correlating the SRS sequence and then search for a peak value. The time sampling point corresponding to the peak value is the propagation time of the electromagnetic wave on the link. The link length is then determined based on the measured propagation time. At the same time, the base station can determine the link attenuation through the received power of the SRS.

[0142] For example, in a downlink transmission scenario, the reference signal sent by the base station to the terminal is PRS, and the corresponding terminal receives and measures PRS. A possible measurement method is to search for the peak after obtaining the correlation spectrum by correlating the PRS sequence. The time sampling point corresponding to the peak is the propagation time of the electromagnetic wave on the link, and then the link length is determined based on the measured propagation time. At the same time, the terminal can determine the link attenuation through the received power of PRS.

[0143] It should be understood that the present application does not limit the method of determining the link length. For example, when the receiving end is a base station and the transmitting end is a terminal, the link length can be determined by the base station, or the link length can be determined by the core network device.

[0144] Exemplarily, when the receiving end is a base station, the transmitting end is a terminal, and the link length is determined by the base station, the base station sends an SRS through the terminal to perform measurement, and further determines the link length between the base station and the terminal.

[0145] Exemplarily, when the receiving end is a base station, the sending end is a terminal, and the link length is determined by the core network device, the core network device obtains the location information of the terminal from the location management function (LMF) network element, and further determines the link length between the base station and the terminal based on the location information of the base station.

[0146] (4) Polarization information

[0147] Polarization information, indicating the horizontal polarization, vertical polarization, or other polarization direction of the reference signal, can be used to estimate the shape of precipitation particles and can also be used to determine the precipitation rate. Horizontal polarization means that the vibration direction of the radio wave is parallel to the ground. Vertical polarization means that the vibration direction of the radio wave is perpendicular to the ground.

[0148] The horizontal polarization of the reference signal refers to the horizontal polarization direction used when the terminal antenna sends the reference signal, or the horizontal polarization direction used when the base station receives the reference signal, or the horizontal polarization direction is used when the terminal antenna sends the reference signal and the base station receives the reference signal. The vertical polarization of the reference signal refers to the vertical polarization direction used when the terminal antenna sends the reference signal, or the vertical polarization direction is used when the base station receives the reference signal, or the vertical polarization direction is used when the terminal antenna sends the reference signal and the base station receives the reference signal. Other polarization directions of the reference signal can be specific direction values, such as angle values ​​offset based on a certain reference direction, which means that the terminal antenna uses other polarization directions other than horizontal and vertical when sending the reference signal, or the base station uses other polarization directions other than horizontal and vertical when receiving the reference signal.

[0149] Polarization information is used to estimate the shape of precipitation particles. When water droplets fall, they will deform due to the increase in the falling speed and the air resistance they encounter. The originally approximately circular shape will gradually become flat as the speed increases and it approaches the surface. The larger the water droplet particles, the more severe the deformation. Therefore, the reference signal will change when it propagates in horizontal polarization and vertical polarization. The shape of the precipitation particles can usually be estimated by detecting this difference. For example, the shape of the precipitation particles can be estimated by performing a ratio operation on the horizontal polarization of the reference signal and the vertical polarization of the reference signal. Alternatively, the shape of the precipitation particles can be estimated by performing a ratio operation on the horizontal polarization of the reference signal and the polarization of the reference signal in other directions. It should be understood that in the present application, the shape of the precipitation particles can be further estimated by performing a ratio operation on the polarization of the reference signal in different directions, without limiting the polarization direction of the reference signal.

[0150] In one possible scenario, the core network device needs to obtain the horizontal polarization of the reference signal and the vertical polarization of the reference signal, and further determine the precipitation rate based on the obtained horizontal polarization of the reference signal and the vertical polarization of the reference signal. For details, see S305, which will not be repeated here.

[0151] (5) Direction information

[0152] Direction information is used to indicate the direction of the propagation path. It can be an angle with a reference direction. The determination method of direction information in this application is similar to the determination method of link length in this application.

[0153] In one possible manner, the direction information is determined by the base station. For example, the base station obtains an angle of arrival (AOA) or an angle of departure (AOD) by measuring a reference signal to determine the relative direction or angle between the terminal and the base station.

[0154] In another possible manner, the direction information is determined by the terminal. For example, the terminal obtains AOA or AOD by measuring a reference signal to determine the relative direction or angle between the terminal and the base station.

[0155] In another possible way, the direction information is determined by the core network equipment. For example, the core network equipment obtains the terminal's orientation information through a functional network element (such as LMF) that obtains the terminal's location information, and further determines the relative orientation or angle between the terminal and the base station based on the base station's location information.

[0156] (6) Frequency information

[0157] Frequency information is used to indicate the reference signal or the operating frequency of the terminal.

[0158] It should be understood that the frequency information in this application does not need to be measured by the base station. It can be simply understood that the reference signal or the operating frequency of the terminal is a default value agreed upon by the terminal and the base station.

[0159] It should be understood that the present application does not limit the manner of reporting frequency information to the core network device. For example, the frequency information may be an absolute radio frequency channel number (ARFCN), or a center frequency, or a frequency band range, or an indication of a low frequency or a high frequency. Among them, each number in the ARFCN corresponds to an absolute frequency domain position, the center frequency refers to the middle frequency of the frequency band range, the frequency band range refers to the operating frequency range of the reference signal, the low frequency refers to the frequency below 6 GHz, such as represented by the frequency band range FR1 (frequency range 1) defined in 5G NR, and the high frequency refers to the frequency above 6 GHz, such as represented by the frequency band range FR2 (frequency range 2) defined in 5G NR.

[0160] For example, in one possible situation, the base station reports specific frequency information to the core network device, for example, the frequency information reported by the base station to the core network device is that the center frequency is 5 GHz. In another possible situation, the base station reports the number corresponding to the ARFCN to the core network device, and the core network device can further determine the specific frequency information through the number corresponding to the ARFCN.

[0161] S304: The base station reports the precipitation information to the core network device. Correspondingly, the core network device receives the precipitation information.

[0162] The precipitation information is used to characterize the channel state of the wireless channel between the terminal and the base station under precipitation. The detailed description of the precipitation information is shown in S303 and will not be repeated here.

[0163] S305: The core network device determines the precipitation rate based on the precipitation information.

[0164] Specifically, the core network device determines the precipitation rate based on the precipitation information, including: the core network device determines the distance decoupling path loss information based on the precipitation information, and then determines the precipitation rate based on the distance decoupling path loss information.

[0165] It should be understood that the present application does not limit the manner in which the core network device determines the distance decoupling path loss information. For example, the core network device may determine the distance decoupling path loss information directly or indirectly.

[0166] One possible way is that the core network device directly determines the distance decoupling path loss information through precipitation information. For example, the precipitation information reported by the base station to the core network device includes the distance decoupling path loss information, so the core network device can directly determine the distance decoupling path loss information. Another possible way is that the core network device indirectly determines the distance decoupling path loss information through precipitation information. For example, the precipitation information reported by the base station to the core network device includes the path loss information caused by precipitation, and the core network device obtains the link length from the LMF network element, and then the core network device can determine the distance decoupling path loss information through formula (1).

[0167] It should be understood that the present application does not limit the manner in which the core network device determines the precipitation rate based on the distance decoupling path loss information. For example, the core network device may determine the precipitation rate based on empirical information, or the core network device may determine the precipitation rate based on the raindrop spectrum. The specific manner is as follows:

[0168] Method 1: The core network equipment determines the precipitation rate based on empirical information

[0169] The core network device determines the precipitation rate based on empirical information, including: the core network device determines the precipitation rate based on distance decoupling path loss information and precipitation parameters corresponding to the precipitation type, where the precipitation parameters include k and α. At this time, the model for determining the precipitation rate can be expressed as:

[0170] γ rain = k × R α (3)

[0171] Among them, γ rain represents the distance decoupled path loss information, R represents the precipitation rate, and k and α represent precipitation parameters.

[0172] For example, the precipitation type is stratus precipitation, the precipitation parameters corresponding to stratus precipitation are k=200, α=1.6, the core network device determines that the distance decoupling path loss information is 1dBm / m, and the precipitation rate R can be obtained by formula (3).

[0173] Specifically, different precipitation types correspond to different precipitation parameters. For example, Table 1 lists precipitation parameters corresponding to several common precipitation types.

[0174] Table 1

[0175] Precipitation Type k α Thunderstorm 830 1.5 drizzle 190 1.5 Stratiform precipitation 227 1.53 Convective precipitation 161 1.55

[0176] Method 2: The core network equipment determines the precipitation rate based on the raindrop spectrum

[0177] The core network device determines the precipitation rate based on the raindrop spectrum, including: the core network device first determines the raindrop spectrum function based on raindrop diameter, frequency information, temperature, inversion function, polarization information and other information, and further determines the precipitation rate through raindrop velocity, raindrop diameter, and raindrop spectrum function.

[0178] Specifically, the core network equipment determines the raindrop spectrum function based on raindrop diameter, frequency information, temperature, inversion function, polarization information and other information, as follows:

[0179] There is a corresponding relationship between the raindrop spectrum function N(D) and the distance decoupling path loss information. The specific corresponding model can be expressed as:

[0180]

[0181] In formula (4), C(D, f, T) represents the inversion function, D represents the raindrop diameter, N(D) represents the raindrop spectrum function, f represents the signal operating frequency, and T represents the temperature.

[0182] The determination model of the raindrop spectrum function can also be expressed as:

[0183] N(D)=N D D μ exp(-ΛD)(0 <D<D max ) (5)

[0184] In formula (5), D represents the raindrop diameter, and the concentration parameter N D , μ is the shape parameter, and Λ is the slope of the unknown parameter.

[0185] Furthermore, in determining formula (5), the central parameter N D , μ shape parameter, Λ slope, the precipitation rate can be determined by the raindrop velocity, raindrop diameter, and raindrop spectrum function. At this time, the model for determining the precipitation rate can be expressed as:

[0186]

[0187] In formula (6), R represents the precipitation rate, D represents the raindrop diameter, N(D) is the raindrop spectrum function, and V(D) represents the raindrop velocity.

[0188] The value of raindrop velocity V(D) is related to the raindrop diameter. The model for determining raindrop velocity based on raindrop diameter can be expressed as:

[0189]

[0190] For example, when the base station measures precipitation information, the frequency information f is used for the same path. 1 , frequency information f 2 , horizontal polarization information and vertical polarization information, and f 1 、f 2 , horizontal polarization information, and vertical polarization information are combined and brought into formula (4) to obtain at least formula (8). Then, the concentrated parameter N can be determined by solving formula (8): D , μ shape parameter, Λ slope. Finally, the determined concentration parameter N D , μ shape parameter, and Λ slope are substituted into formula (6) to obtain the precipitation rate R.

[0191]

[0192] In formula (8), D represents the raindrop diameter, N(D) represents the raindrop spectrum function, and f 1 Represents a kind of frequency information, f 2 represents another frequency information, T represents temperature, C(D,f,T) is the inversion function, γ rain，1 Indicates that the base station is measuring the reference signal operating frequency of f 1 , and in the absence of polarization information, the corresponding distance decoupling path loss information; γ rain，2,h Indicates that the reference signal operating frequency measured by the base station is f 2 , and in the case of horizontal polarization information, the corresponding distance decoupling path loss information; γ rain，3,v Indicates that the reference signal operating frequency measured by the base station is f 2 , and when there is vertical polarization information, the corresponding distance decoupling path loss information.

[0193] based on Figure 3In the method shown, the base station receives a perception request message sent by the core network device to request the base station to report precipitation information. Subsequently, the base station receives a reference signal sent by the terminal according to the perception request message. Further, the base station determines the precipitation information based on the reference signal. Finally, the base station reports the precipitation information to the core network device, so that the core network device can determine the precipitation rate based on the received precipitation information, and further provide meteorological services that accurately determine the precipitation rate. At the same time, the wide distribution and short information transmission delay characteristics of the terminals, base stations, and core network devices are maximized to provide meteorological services with balanced supply distribution and short update delay.

[0194] The above mainly introduces the scheme provided by the embodiment of the present application from the perspective of interaction between various devices. It is understandable that various devices, such as a transmitting end (such as a terminal), a receiving end (such as an access network device), a core network device, etc., in order to realize the above functions, include hardware structures and / or software modules corresponding to the execution of each function. It should be easy for those skilled in the art to realize that, in combination with the algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present application.

[0195] The embodiment of the present application can group the functional modules of the transmitting end, receiving end, core network equipment, etc. according to the above method example. For example, each functional module can be grouped according to each function, or two or more functions can be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the grouping of modules in the embodiment of the present application is schematic and is only a logical functional grouping. There may be other grouping methods in actual implementation.

[0196] Figure 4 FIG. 4 shows a structural diagram of a communication device 40, which can be used to perform the functions of the receiving end involved in the above embodiment. As an implementation method, Figure 4 The communication device 40 shown includes: a transceiver unit 401, a processing unit 402;

[0197] The transceiver unit 401 is used to receive a reference signal transmitted through a wireless channel, and is also used to report meteorological information to a core network device, wherein the meteorological information is used to characterize the meteorological characteristics of the wireless channel during the transmission process, and / or the channel state of the wireless channel under the weather to be measured. For example, the transceiver unit 401 can be used to support the communication device 40 to execute S302 and S304.

[0198] The processing unit 402 is configured to measure the reference signal to obtain the meteorological information. For example, the processing unit 402 may support the communication device 40 to execute S303.

[0199] Among them, the relevant descriptions of the reference signal, the meteorological information to be measured, and the meteorological information can refer to those described in the above method embodiments.

[0200] Specifically, the above Figure 3 All relevant contents of each step involved in the illustrated method embodiment can be referred to the functional description of the corresponding functional module, and will not be repeated here. The communication device 40 is used to execute Figure 3 The function of the base station in the meteorological measurement method shown can therefore achieve the same effect as the above-mentioned meteorological measurement method.

[0201] As another possible way to achieve this, Figure 4 The communication device 40 shown includes: a processing module and a communication module. The processing module is used to control and manage the actions of the communication device 40. For example, the processing module can integrate the functions of the processing unit 402, and can be used to support the communication device 40 to execute S303 and other processes of the technology described herein. The communication module can integrate the functions of the transceiver unit 401, and can be used to support the communication device 40 to execute S302, S304 and communicate with other network entities, such as Figure 3 The communication device 40 may also include a storage module for storing program codes and data of the communication device 40.

[0202] Figure 5 FIG. 5 shows a structural diagram of a communication device 50, which can be used to perform the functions of the core network device involved in the above embodiment. As an implementable manner, Figure 5 The communication device 50 shown includes: a transceiver unit 501, a processing unit 502;

[0203] The transceiver unit 501 is used to receive meteorological information reported by the receiving end, where the meteorological information is used to characterize meteorological characteristics of the wireless channel during transmission and / or the channel state of the wireless channel under the weather to be measured. For example, the transceiver unit 501 can be used to support the communication device 50 to execute S304.

[0204] The processing unit 502 is configured to determine characteristic parameters of the weather based on the weather information. For example, the processing unit 502 may support the communication device 50 to execute S305.

[0205] Among them, the relevant descriptions of meteorological information, meteorological information to be measured, and characteristic parameters of meteorological information can refer to those described in the above method embodiments.

[0206] Specifically, the above Figure 3 All relevant contents of each step involved in the method embodiment shown can be referred to the functional description of the corresponding functional module, and will not be repeated here. The communication device 50 is used to execute Figure 3 The functions of the core network equipment in the meteorological measurement method shown can therefore achieve the same effect as the above-mentioned meteorological measurement method.

[0207] As another possible way to achieve this, Figure 5 The communication device 50 shown includes: a processing module and a communication module. The processing module is used to control and manage the actions of the communication device 50. For example, the processing module can integrate the functions of the processing unit 502, and can be used to support the communication device 50 to execute S305 and other processes of the technology described in this article. The communication module can integrate the functions of the transceiver unit 501, and can be used to support the communication device 50 to execute S304 and communicate with other network entities, such as Figure 3 The communication device 50 may also include a storage module for storing program codes and data of the communication device 50.

[0208] As mentioned above, the processing module may be a processor or a controller. It may implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the contents disclosed in this application. The processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like. The communication module may be a transceiver circuit or a communication interface, and the like. The storage module may be a memory. When the processing module is a processor, the communication module is a communication interface, and the storage module is a memory, the communication device 40 and the communication device 50 involved in the embodiments of the present application may be Figure 6 For example, the receiving end and the core network device mentioned above can be used Figure 6 The structure shown or includes Figure 6 Parts shown. Figure 6 A schematic diagram of the composition of a communication device 60 provided in an embodiment of the present application is shown as follows: Figure 6 As shown, the communication device 60 may include a processor 601 , a communication line 602 , and a communication interface 603 .

[0209] Furthermore, the communication device 60 may also include a memory 604 . The processor 601 , the memory 604 and the communication interface 603 may be connected via a communication line 602 .

[0210] The processor 601 may be a central processing unit (CPU), a general-purpose processor, a network processor (NP), a digital signal processor (DSP), a microprocessor, a microcontroller, a programmable logic device (PLD), or any combination thereof. The processor 601 may also be other communication devices with processing functions, such as circuits, devices, or software modules.

[0211] The communication line 602 is used to transmit information between the components included in the communication device 60.

[0212] The communication interface 603 is used to communicate with other devices or other communication networks. The other communication network may be Ethernet, a radio access network (RAN), a wireless local area network (WLAN), etc. The communication interface 603 may be a radio frequency module, a transceiver, or any communication device capable of achieving communication. The embodiment of the present application is described by taking the communication interface 603 as a radio frequency module as an example, wherein the radio frequency module may include an antenna, a radio frequency circuit, etc., and the radio frequency circuit may include a radio frequency integrated chip, a power amplifier, etc.

[0213] The memory 604 is used to store instructions, where the instructions may be computer programs.

[0214] Among them, the memory 604 can be a read-only memory (ROM) or other types of static storage devices that can store static information and / or instructions, or a random access memory (RAM) or other types of dynamic storage devices that can store information and / or instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage, magnetic disk storage media or other magnetic storage devices, and the optical disc storage includes a compressed optical disc, a laser disc, an optical disc, a digital versatile disc, a Blu-ray disc, etc.

[0215] It should be noted that the memory 604 can exist independently of the processor 601, or can be integrated with the processor 601. The memory 604 can be used to store instructions or program codes or some data, etc. The memory 604 can be located in the communication device 60, or can be located outside the communication device 60, without limitation. The processor 601 is used to execute the instructions stored in the memory 604 to implement the communication method provided in the following embodiments of the present application.

[0216] In one example, the processor 601 may include one or more CPUs, such as Figure 6 CPU0 and CPU1 in.

[0217] As an optional implementation, the communication device 60 includes multiple processors, for example, Figure 6 In addition to the processor 601, a processor 607 may also be included.

[0218] As an optional implementation, the communication device 60 further includes an output device 605 and an input device 606. The input device 606 is a keyboard, a mouse, a microphone or a joystick, etc., and the output device 605 is a display screen, a speaker, etc.

[0219] It should be noted that the communication device 60 can be a desktop computer, a portable computer, a network server, a mobile phone, a tablet computer, a wireless terminal, an embedded device, a chip system or a Figure 6 In addition, Figure 6 The structure shown in the figure does not constitute a limitation on the communication device, except Figure 6 In addition to the components shown, the communication device may include more or fewer components than shown, or combine certain components, or arrange the components differently.

[0220] In the embodiment of the present application, the chip system may be composed of a chip, or may include a chip and other discrete devices.

[0221] The embodiment of the present application also provides a computer-readable storage medium. All or part of the processes in the above method embodiments can be completed by a computer program to instruct the relevant hardware, and the program can be stored in the above computer-readable storage medium. When the program is executed, it can include the processes of the above method embodiments. The computer-readable storage medium can be a terminal of any of the above embodiments, such as: an internal storage unit including a data transmission end and / or a data receiving end, such as a hard disk or memory of a terminal. The above computer-readable storage medium can also be an external storage device of the above terminal, such as a plug-in hard disk, a smart memory card (smart media card, SMC), a secure digital (securedigital, SD) card, a flash card (flash card), etc. equipped on the above terminal. Further, the above computer-readable storage medium can also include both the internal storage unit of the above terminal and an external storage device. The above computer-readable storage medium is used to store the above computer program and other programs and data required by the above terminal. The above computer-readable storage medium can also be used to temporarily store data that has been output or is to be output.

[0222] It should be understood that the collection, storage, use, processing, transmission, provision and disclosure of user personal information involved in the technical solution of this application are in compliance with relevant laws and regulations and do not violate public order and good morals. For example, in the technical solution of this application, the processing of user personal information is carried out with the authorization of the user, and the same description is not repeated here.

[0223] It should be noted that the terms "first" and "second" in the specification, claims and drawings of the present application are used to distinguish different objects rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices.

[0224] It should be understood that in the present application, "at least one (item)" means one or more, "more than one" means two or more, "at least two (items)" means two or three and more than three, and "and / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0225] It should be understood that in the embodiments of the present application, "B corresponding to A" means that B is associated with A. For example, B can be determined based on A. It should also be understood that determining B based on A does not mean determining B only based on A, but B can also be determined based on A and / or other information. In addition, the "connection" that appears in the embodiments of the present application refers to various connection methods such as direct connection or indirect connection to achieve communication between devices, and the embodiments of the present application do not impose any limitation on this.

[0226] Unless otherwise specified, the "transmission" (transmit / transmission) appearing in the embodiments of the present application refers to bidirectional transmission, including sending and / or receiving actions. Specifically, the "transmission" in the embodiments of the present application includes the sending of data, the receiving of data, or the sending of data and the receiving of data. In other words, the data transmission here includes uplink and / or downlink data transmission. Data may include channels and / or signals, uplink data transmission is uplink channel and / or uplink signal transmission, and downlink data transmission is downlink channel and / or downlink signal transmission. The "network" and "system" appearing in the embodiments of the present application express the same concept, and the communication system is the communication network.

[0227] Through the description of the above implementation methods, technical personnel in the relevant field can clearly understand that for the convenience and simplicity of description, only the grouping of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be grouped into different functional modules to complete all or part of the functions described above.

[0228] In the several embodiments provided in the present application, it should be understood that the disclosed communication devices and methods can be implemented in other ways. For example, the communication device embodiments described above are only schematic. For example, the grouping of the modules or units is only a logical function grouping. There may be other grouping methods in actual implementation, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0229] The units described as separate components may or may not be physically separated, and the components shown as units may be one physical unit or multiple physical units, that is, they may be located in one place or distributed in multiple different places. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0230] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0231] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium, including several instructions to enable a device, such as a single-chip microcomputer, a chip, etc., or a processor (processor) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media for storing program codes such as USB flash drives, mobile hard drives, ROM, RAM, magnetic disks or optical disks.

[0232] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A meteorological measurement method, It is characterized in that include: receiving a reference signal transmitted via a wireless channel; Measuring the reference signal to obtain meteorological information; The meteorological information is used to characterize the meteorological characteristics of the wireless channel during transmission and / or the channel state of the wireless channel under the meteorological conditions to be measured; Report the meteorological information to the core network equipment.

2. The method according to claim 1, It is characterized in that The method further comprises: receiving a sensing request message, wherein the sensing request message is used to request measurement and reporting of the meteorological information; The receiving a reference signal transmitted through a wireless channel includes: receiving the reference signal transmitted through the wireless channel according to the perception request message.

3. The method according to claim 2, It is characterized in that The perception request message includes at least one of the following: measurement type, measurement quantity, measurement period, or measurement duration; The measurement type is used to indicate the type of the meteorological information to be measured; The measurement quantity is used to indicate the information that needs to be measured corresponding to the meteorological information to be measured.

4. The method according to any one of claims 1 to 3, It is characterized in that The meteorological information includes at least one of the following: Distance decoupling path loss information, path loss information caused by weather, link length, polarization information, direction information, or frequency information.

5. The method according to claim 4, It is characterized in that The road damage information caused by weather is determined by at least one of the following: The receiving end is based on link attenuation, free space path loss, transmission path loss caused by water film, and noise.

6. A meteorological measurement method, It is characterized in that include: Receive weather information reported by the receiving end; The meteorological information is used to characterize the meteorological characteristics of the wireless channel during transmission and / or the channel state of the wireless channel under the meteorological conditions to be measured; Based on the meteorological information, characteristic parameters of the meteorology are determined.

7. The method according to claim 6, It is characterized in that The method further comprises: A perception request message is sent, where the perception request message is used to request measurement and reporting of the meteorological information.

8. The method according to claim 7, It is characterized in that The perception request message includes at least one of the following: measurement type, measurement quantity, measurement period, or measurement duration; The measurement type is used to indicate the type of the meteorological information to be measured; The measurement quantity is used to indicate the information that needs to be measured corresponding to the meteorological information to be measured.

9. The method according to any one of claims 6 to 8, It is characterized in that The meteorological information includes at least one of the following: Distance decoupling path loss information, path loss information caused by weather, link length, polarization information, direction information, or frequency information.

10. The method according to claim 9, It is characterized in that The path loss information caused by weather is determined by the receiving end according to at least one of the following: link attenuation, free space path loss, transmission path loss caused by water film, and noise.

11. The method according to any one of claims 1 to 10, It is characterized in that The sending end is a terminal device and the receiving end is an access network device; or, The sending end is the access network device and the receiving end is the terminal device.

12. A communication device, It is characterized in that The communication device is applied to a receiving end, and the communication device includes: A transceiver unit, configured to receive a reference signal transmitted via a wireless channel; A processing unit, configured to measure the reference signal to obtain meteorological information; the meteorological information is used to characterize meteorological characteristics of the wireless channel during transmission and / or a channel state of the wireless channel under the meteorological conditions to be measured; The transceiver unit is also used to report the meteorological information to the core network equipment.

13. A communication device, It is characterized in that The communication device comprises a processor and a communication interface, and the processor and the communication interface are used to support the communication device to execute the meteorological measurement method according to any one of claims 1-5.

14. A communication device, It is characterized in that The communication device is applied to a core network device, and the communication device includes: A transceiver unit, configured to receive meteorological information reported by a receiving end; the meteorological information is used to characterize meteorological characteristics of the wireless channel during transmission and / or a channel state of the wireless channel under the meteorological conditions to be measured; A processing unit is used to determine characteristic parameters of the meteorology based on the meteorological information.

15. A communication device, It is characterized in that The communication device comprises a processor and a communication interface, and the processor and the communication interface are used to support the communication device to execute the meteorological measurement method according to any one of claims 6-11.

16. A communication system, It is characterized in that The communication system comprises a transmitting end and the communication device according to claim 12 or 13, or the communication system comprises a transmitting end and the communication device according to claim 14 or 15.

17. A computer-readable storage medium, It is characterized in that The computer-readable storage medium stores computer instructions, and when the computer instructions are executed on a computer, the computer executes the method according to any one of claims 1 to 5, or the computer executes the method according to any one of claims 6 to 11.

18. A computer program product, It is characterized in that The computer program product comprises computer instructions, and when the computer instructions are executed on a computer, the computer is caused to execute the method according to any one of claims 1 to 5, or the computer is caused to execute the method according to any one of claims 6 to 11.

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