WO2017173636A1 - 基于电子地图的小区切换方法和终端设备 - Google Patents

基于电子地图的小区切换方法和终端设备 Download PDF

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Publication number
WO2017173636A1
WO2017173636A1 PCT/CN2016/078737 CN2016078737W WO2017173636A1 WO 2017173636 A1 WO2017173636 A1 WO 2017173636A1 CN 2016078737 W CN2016078737 W CN 2016078737W WO 2017173636 A1 WO2017173636 A1 WO 2017173636A1
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WIPO (PCT)
Prior art keywords
base station
terminal device
switching
station information
handover
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PCT/CN2016/078737
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English (en)
French (fr)
Inventor
刘亚林
李辉
钱湘江
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华为技术有限公司
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Priority to PCT/CN2016/078737 priority Critical patent/WO2017173636A1/zh
Publication of WO2017173636A1 publication Critical patent/WO2017173636A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
    • H04W36/324—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data by mobility data, e.g. speed data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
    • H04W36/322—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data by location data

Definitions

  • the embodiments of the present invention relate to the field of communications, and in particular, to an electronic map-based cell handover method and a terminal device in the communication field.
  • Intelligent Transportation System is an advanced information technology, data communication transmission technology, sensor technology, embedded technology, electronic control technology, computer processing technology, distributed computer technology and cloud computing technology.
  • GPS Global Positioning System
  • GIS Geographic Information System
  • GPS Global Positioning System
  • the satellite positioning information is acquired, and electronic map information is introduced in the traffic system, so that the terminal device performs path planning in advance according to the destination.
  • the judgment variable of the cell handover is Received Signal Strength Indication (RSSI), Reference Signal Receiving Power (RSRP), or reference signal reception quality. (Reference Signal Receiving Quality, referred to as "RSRQ").
  • RSSI Received Signal Strength Indication
  • RSRP Reference Signal Receiving Power
  • RSRQ Reference Signal Receiving Quality
  • the embodiment of the invention provides a cell handover method and a terminal device based on an electronic map, which solves the problem that the high-speed mobile terminal device cell handover is not timely and unreliable.
  • the first aspect provides an electronic map-based cell handover method, including: the terminal device acquires first base station information and second base station information from an electronic map, where the first base station information is used to indicate location and coverage of the first base station. Range, the second base station information is used to indicate the location and coverage of the second base station, and the second base station is a base station adjacent to the first base station in the moving direction of the terminal device; The terminal device determines a handover location according to the first base station information and the second base station information; and the terminal device performs cell handover when the handover location is reached.
  • the electronic map-based cell switching method in combination with the electronic map information and the high-precision positioning, obtains the first base station information and the second base station information by using the terminal device, and can determine the switching position in advance, and when the switching position is reached Performing cell handover greatly improves the success rate of handover, effectively avoiding that the terminal device has left the coverage area of the source base station, and the handover of the terminal device has not been completed, thereby improving the user experience and greatly reducing the intelligent traffic.
  • the handover interruption time in the network makes the high-speed mobile terminal equipment also under the control of the network during the handover phase, which reduces the incidence of traffic accidents.
  • the terminal device determines, according to the first base station information and the second base station information, a handover location, where the terminal device determines the first handover boundary as the handover location,
  • the first switching boundary is a vertical cross section of the intersection of the first sphere covered by the first base station and the second sphere covered by the second base station.
  • the terminal device before the determining, by the terminal device, the handover location, obtains the moving speed of the terminal device; the terminal device determines the switching location according to the first base station information and the second base station information, and includes: the terminal device according to the first base station information, the second base station information And the moving speed, the switching position is determined.
  • the terminal device determines the switching location according to the first base station information, the second base station information, and the moving speed
  • the method includes: when the moving speed is less than the first threshold, the terminal device determines the first switching boundary as the switching position, where the first switching boundary is a first sphere covered by the first base station and a second sphere covered by the second base station a vertical cross-section of the intersecting portion of the sphere; when the moving speed is greater than the second threshold, the terminal device determines the third switching boundary as the switching position, the third switching boundary is that the spherical surface of the second sphere is in the first sphere And determining, when the moving speed is greater than the first threshold and less than the second threshold, the second switching boundary is determined as the switching position, where the second switching boundary is located at the first switching boundary and the third switching boundary Between; wherein the first threshold is less than the second threshold.
  • a terminal device for performing the method of any of the above first aspect or any of the possible implementations of the first aspect.
  • the terminal device comprises means for performing the method of any of the above-described first aspect or any of the possible implementations of the first aspect.
  • a terminal device comprising: a receiver, a transmitter, a memory, a processor, and a bus system.
  • the receiver, the transmitter, the memory and the processor are connected by the bus system, the memory is for storing instructions for executing the instructions stored by the memory to control the receiver to receive signals and control the sending
  • the transmitter transmits a signal, and when the processor executes the memory stored instructions, the execution causes the processor to perform the method of the first aspect or any of the possible implementations of the first aspect.
  • a computer readable medium for storing a computer program comprising instructions for performing the method of the first aspect or any of the possible implementations of the first aspect.
  • FIG. 1 is a schematic diagram of a wireless communication system to which an embodiment of the present invention is applied.
  • FIG. 2 is a schematic flowchart of an electronic map-based cell handover method according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of an electronic map based cell handover method according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of another electronic map based cell handover method according to an embodiment of the present invention.
  • FIG. 5 is a schematic block diagram of a terminal device according to an embodiment of the present invention.
  • FIG. 6 is a schematic block diagram of another terminal device according to an embodiment of the present invention.
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • FIG. 1 shows a wireless communication system 100 to which an embodiment of the present invention is applied.
  • the wireless communication system 100 can include a plurality of network devices, including, for example, three network devices, 110, 120, and 130, respectively.
  • Network devices 110, 120, and 130 may be devices that communicate with terminal devices, such as base stations or base station controllers, and the like. Each network device can provide communication coverage for a particular geographic area and can communicate with terminal devices (e.g., UEs) located within the coverage area (cell).
  • the network devices 110, 120, and 130 may be base stations (Base Transceiver Stations, referred to as "BTS") in a GSM system or a Code Division Multiple Access (“CDMA”) system, or may be a WCDMA system.
  • BTS Base Transceiver Stations
  • CDMA Code Division Multiple Access
  • a base station (NodeB, abbreviated as “NB”), which may also be an evolved base station (Evolutional Node B, “eNB” or “eNodeB”) in the LTE system, or a cloud radio access network (Cloud Radio Access) a wireless controller in the network, referred to as "CRAN”, or the network device may be a relay station, an access point, an in-vehicle device, a wearable device, a network side device in a future 5G network, or a public land mobile network that evolves in the future ( Network devices in the Public Land Mobile Network, referred to as "PLMN".
  • PLMN Public Land Mobile Network
  • the wireless communication system 100 also includes a plurality of terminal devices located within the coverage of different network devices, such as the terminal devices 140 located within the coverage of the base station 120.
  • the terminal device 140 is movable at high speed.
  • the terminal device 140 can refer to an access terminal, a user equipment (User Equipment, referred to as "UE"), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, and a wireless device.
  • Communication device User agent or user device.
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol ("SSIP”) phone, a Wireless Local Loop (WLL) station, and a personal digital processing (Personal Digital) Assistant, referred to as "PDA"), a handheld device with wireless communication capabilities, a computing device, or other location connected to a wireless modem Device, in-vehicle device, wearable device, terminal device in a future 5G network, or terminal device in a future public land mobile network (Public Land Mobile Network, referred to as "PLMN").
  • PLMN Public Land Mobile Network
  • FIG. 1 exemplarily shows three base stations and one terminal device.
  • the wireless communication system 100 may include a plurality of base stations and may include other numbers of terminal devices within the coverage of each base station, in accordance with an embodiment of the present invention. There is no limit to this.
  • the wireless communication system 100 may further include other network entities, such as a network controller, a mobility management entity, and the like, and the embodiment of the present invention is not limited thereto.
  • network entities such as a network controller, a mobility management entity, and the like, and the embodiment of the present invention is not limited thereto.
  • FIG. 2 is a schematic flowchart of an electronic map-based cell switching method 200 according to an embodiment of the present invention.
  • the method 200 can be applied to the wireless communication system 100 shown in FIG. 1, but the embodiment of the present invention is not limited thereto.
  • the terminal device acquires first base station information and a second base station information, where the first base station information is used to indicate a location and a coverage of the first base station, where the second base station information is used to indicate a location of the second base station. Covering, the second base station is a base station adjacent to the first base station in a moving direction of the terminal device;
  • the first base station may be a base station currently used by the terminal device
  • the second base station may be a base station adjacent to the first base station in a moving direction of the terminal device. Since the path planning has been performed, the moving path of the terminal device in the electronic map is known, so the moving direction of the terminal device is also known, and the terminal device can determine the second base station according to its own moving direction.
  • the terminal device may acquire the first base station information and the second base station information from the electronic map.
  • the information of each base station is recorded in the electronic map, including the location and coverage of each base station, such as coordinates, which may include the longitude, latitude and altitude of the terminal device (related to the height from the ground), and the terminal device may directly Obtaining the first base station information and the second base station information from the electronic map.
  • the terminal device can directly acquire and does not need to be transmitted by the base station, thereby reducing signaling overhead and improving system efficiency and spectrum utilization.
  • the terminal device determines, according to the first base station information and the second base station information, a handover location.
  • the terminal device may determine the handover location of the terminal device.
  • the terminal device performs cell handover when the handover location is reached.
  • the terminal device may acquire the satellite positioning information based on the GIS map and the GPS module configured by itself, so the terminal device may obtain the current location information, such as coordinates, in the electronic map according to the high-precision positioning technology, and may include the terminal.
  • the longitude, latitude, and altitude of the equipment (related to the height from the ground).
  • automatic driving using central path planning is adopted, so that the terminal device is predicted to be moved to a certain position in the electronic map, and even when the moving speed of the terminal device is combined, the terminal device arrives at the position. The time is also predictable.
  • the terminal device can perform cell handover when the handover location is reached.
  • the coverage-based handover is introduced to ensure the continuity of the terminal device service.
  • the base station sends the relevant configuration information by measuring the control message, and the terminal device completes the handover measurement according to the control, and completes the handover process under the control of the base station to ensure the uninterrupted communication service.
  • GSM Global System for Mobile Communication
  • the mobile station cannot establish the target base station immediately after the communication channel with the source base station is cut off. New channel, then a short call interruption time, this time is about 200 milliseconds.
  • the typical process of cell handover is: measurement control -> measurement report -> handover decision -> handover execution -> new measurement control. Since GSM is an inter-frequency network, the neighboring cell interference is small, and the signal strength can be measured.
  • the prior art relies on RSSI, RSRP, or RSRQ to determine whether a terminal device needs to perform cell handover.
  • the electronic map-based cell switching method provided by the embodiment of the present invention combines the electronic map information and the high-precision positioning, acquires the first base station information and the second base station information through the terminal device, determines the switching position in advance, and reaches the switching position.
  • Performing cell handover greatly improves the success rate of handover, effectively avoiding that the terminal device has left the coverage area of the source base station, and the handover of the terminal device has not been completed, thereby improving the user experience and greatly reducing the intelligent traffic.
  • the handover interruption time in the network makes the high-speed mobile terminal equipment also under the control of the network during the handover phase, which reduces the incidence of traffic accidents.
  • the terminal device may determine the switching location of the terminal device in multiple manners, which is not limited in this embodiment of the present invention.
  • the terminal device determines, according to the first base station information and the second base station information, a handover location, including:
  • the terminal device determines the first handover boundary as the handover location, where the first handover boundary is a vertical cross section of the intersection of the first sphere covered by the first base station and the second sphere covered by the second base station.
  • the first base station is 110 and the second base station is 120.
  • the first handover boundary can be set to be the first sphere covered by the first base station 110 and the second base station is 120 covered.
  • a vertical cross section of the intersection of the two spheres wherein the first sphere is centered on the first base station 110 and R1 is a radius; the second sphere is centered on the second base station 120, and R2 is a radius (R1 is the coverage of the first base station) Radius, R2 is the coverage radius of the second base station).
  • the method before the terminal device determines the handover location according to the first base station information and the second base station information, the method further includes:
  • the terminal device acquires a moving speed of the terminal device
  • Determining, by the terminal device, the handover location according to the first base station information and the second base station information including:
  • the terminal device determines the switching position according to the first base station information, the second base station information, and the moving speed.
  • the terminal device determines the switching location according to the first base station information, the second base station information, and the moving speed, including:
  • the terminal device determines the first switching boundary as the switching position, where the first switching boundary is that the first sphere covered by the first base station and the second sphere covered by the second base station intersect Partial vertical cross section;
  • the terminal device determines the third switching boundary as the switching position, where the third switching boundary is a portion of the spherical surface of the second sphere in the first sphere;
  • the terminal device determines a second switching boundary as the switching position, where the second switching boundary is between the first switching boundary and the third switching boundary ;
  • the first threshold is less than the second threshold.
  • the terminal device can be based on its own moving speed.
  • the three switching boundaries are set to determine the switching position of the terminal device.
  • the embodiment of the present invention divides the switching boundary into a first switching boundary, a second switching boundary, and a third switching boundary, and the terminal device may be different according to different conditions.
  • the situation is to perform cell handover at different handover boundaries. For example, if the first threshold value is set to 10 km/h and the second threshold value is 100 km/h, the terminal device determines that the switching position can be classified into the following three cases:
  • the first switching boundary is the switching position of the terminal device.
  • the first switching boundary may be set as a vertical cross section of the intersection of the first sphere and the second sphere, wherein the first sphere is centered on the first base station 110, R1 is a radius; the second sphere is a second base station 120 is the center, R2 is the radius (R1 is the coverage radius of the first base station 110, and R2 is the coverage radius of the second base station 120).
  • the third switching boundary is the switching position of the terminal device.
  • the third switching boundary may be set to be centered on the second base station 120, and the spherical surface of R2 is a portion of the sphere centered on the first base station 110 and R1 is a radius.
  • the second switching boundary is the switching position of the terminal device.
  • the second switching boundary may be set to an intermediate portion of the first switching boundary and the third switching boundary.
  • the terminal device by setting a plurality of handover boundaries, it is more practical, and the terminal device can complete the cell handover in time before leaving the coverage of the source cell, thereby greatly improving the success rate of the handover.
  • the terminal device can According to its own moving speed, the switching time is reasonably estimated, which greatly improves the user experience.
  • the electronic map-based cell switching method provided by the embodiment of the present invention can be used for a general-purpose cellular system, and can also be used for a dedicated trunking communication system, which is not limited by the embodiment of the present invention.
  • FIG. 5 shows a terminal device 300 according to an embodiment of the present invention.
  • the terminal device 300 includes:
  • the acquiring unit 310 is configured to acquire first base station information and a second base station information, where the first base station information is used to indicate a location and a coverage of the first base station, where the second base station information is used. And indicating a location and a coverage of the second base station, where the second base station is a base station adjacent to the first base station in a moving direction of the terminal device;
  • a determining unit 320 configured to determine, according to the first base station information and the second base station information, a handover location
  • the switching unit 330 is configured to perform cell handover when the handover location is reached.
  • the determining unit is specifically configured to:
  • the first switching boundary is determined as the switching position, and the first switching boundary is a vertical cross section of the intersection of the first sphere covered by the first base station and the second sphere covered by the second base station.
  • the obtaining unit is further configured to:
  • the determining unit is specifically configured to:
  • the switching position is determined based on the first base station information, the second base station information, and the moving speed.
  • the determining unit is specifically configured to:
  • determining a first switching boundary as the switching position where the first switching boundary is a vertical of a first sphere covered by the first base station and a second sphere covered by the second base station Cross-section;
  • the first threshold is less than the second threshold.
  • the terminal device 300 herein is embodied in the form of a functional unit.
  • the term "unit” herein may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor for executing one or more software or firmware programs (eg, a shared processor, a proprietary processor, or a group). Processors, etc.) and memory, merge logic, and/or other suitable components that support the described functionality.
  • ASIC application specific integrated circuit
  • processors for executing one or more software or firmware programs
  • memory merge logic, and/or other suitable components that support the described functionality.
  • the terminal device 300 may be used to perform various processes and/or steps corresponding to the terminal device in the foregoing method embodiments. To avoid repetition, details are not described herein again.
  • FIG. 6 shows a terminal device 400 provided by an embodiment of the present invention
  • the terminal device 400 includes Receiver 410, processor 420, transmitter 430, memory 440, and bus system 450.
  • the receiver 410, the processor 420, the transmitter 430 and the memory 440 are connected by a bus system 450 for storing instructions for executing instructions stored in the memory 440 to control the receiver 410.
  • a signal is received and the transmitter 430 is controlled to send an instruction.
  • the receiver 410 is configured to acquire first base station information and a second base station information, where the first base station information is used to indicate the location and coverage of the first base station, and the second base station information is used to indicate the second base station. Position and coverage, the second base station is a base station adjacent to the first base station in the moving direction of the terminal device;
  • the processor 420 is configured to determine, according to the first base station information and the second base station information, a handover location;
  • the processor 420 is further configured to perform cell handover when the handover location is reached.
  • the processor 420 is specifically configured to:
  • the first switching boundary is determined as the switching position, and the first switching boundary is a vertical cross section of the intersection of the first sphere covered by the first base station and the second sphere covered by the second base station.
  • the receiver 410 is further configured to:
  • the processor 420 is specifically configured to:
  • the switching position is determined based on the first base station information, the second base station information, and the moving speed.
  • the processor 420 is specifically configured to:
  • determining a first switching boundary as the switching position where the first switching boundary is a vertical of a first sphere covered by the first base station and a second sphere covered by the second base station Cross-section;
  • the first threshold is less than the second threshold.
  • the terminal device 400 can be used to perform various steps and/or processes corresponding to the terminal device in the foregoing method embodiments.
  • the memory 440 can include read only memory and random access memory and provide instructions and data to the processor. A portion of the memory may also include a nonvolatile SRAM.
  • the memory can also store information of the device type.
  • the processor 420 can be configured to execute instructions stored in a memory, and when the processor executes the instructions, the processor can perform various steps and/or processes corresponding to the terminal devices in the above method embodiments.
  • the processor may be a central processing unit (CPU), and the processor may also be other general purpose processors, digital signal processors (DSPs), and application specific integrated circuits (ASICs). ), Field Programmable Gate Array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • each step of the above method may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in a memory, and the processor executes instructions in the memory, in combination with hardware to perform the steps of the above method. To avoid repetition, it will not be described in detail here.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be indirect coupling through some interfaces, devices or units or Communication connections can also be electrical, mechanical or other forms of connection.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.
  • each functional unit in each embodiment of the present invention 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 integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present invention contributes in essence or to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a USB flash drive, a mobile hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a disk or a CD.
  • ROM Read-Only Memory
  • RAM Random Access Memory

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Abstract

本发明公开了一种基于电子地图的小区切换方法和终端设备。该方法包括：终端设备从电子地图中获取第一基站信息和第二基站信息，该第一基站信息用于表示第一基站的位置和覆盖范围，该第二基站信息用于表示第二基站的位置和覆盖范围；该终端设备根据该第一基站信息和该第二基站信息，确定切换位置；该终端设备在到达该切换位置时进行小区切换。本发明实施例的基于电子地图的小区切换方法和终端设备，通过终端设备获取第一基站信息和第二基站信息，提前确定切换位置，并在到达该切换位置时进行小区切换，大大提高了切换的成功率，有效地避免了终端设备已经离开源基站的覆盖区，而该终端设备的切换尚未完成的情况发生，提高了用户体验。

Description

基于电子地图的小区切换方法和终端设备 技术领域
本发明实施例涉及通信领域，更具体地，涉及通信领域中基于电子地图的小区切换方法和终端设备。
背景技术
智能交通系统(Intelligent Transport System，简称为“ITS”)是将先进的信息技术、数据通讯传输技术、传感器技术、嵌入式技术、电子控制技术、计算机处理技术、分布式计算机技术和云计算技术等运用于交通管理而建立的一种实时、准确、高效的综合交通运输管理系统。现在，越来越多的终端设备安装了全球定位系统(Global Positioning System，简称为“GPS”)，终端设备基于自身配置的地理信息系统(Geographic Information System，简称为“GIS”)地图和GPS模块获取卫星定位信息，在交通系统中引入了电子地图信息，以便终端设备根据目的地提前进行路径规划。
现有技术中，小区切换的判断变量是接收到的信号强度(Received Signal Strength Indication，简称为“RSSI”)、参考信号接收功率(Reference Signal Receiving Power，简称为“RSRP”)或参考信号接收质量(Reference Signal Receiving Quality，简称为“RSRQ”)。但是，在终端设备移动速度很快的情况下，例如，在智能交通系统中，汽车终端的行驶速度很快，信号强度的变化也很快，仅仅依靠RSSI、RSRP或RSRQ来确定汽车终端进行小区切换的位置很不及时，也不可靠。对于高速移动的终端设备来说，很可能会出现终端设备已经离开源小区，而切换尚未完成的情况。
发明内容
本发明实施例提供了一种基于电子地图的小区切换方法和终端设备，解决了高速移动的终端设备小区切换不及时、不可靠的问题。
第一方面，提供了一种基于电子地图的小区切换方法，包括：终端设备从电子地图中获取第一基站信息和第二基站信息，该第一基站信息用于表示第一基站的位置和覆盖范围，该第二基站信息用于表示第二基站的位置和覆盖范围，该第二基站为该终端设备移动方向上与该第一基站相邻的基站；该 终端设备根据该第一基站信息和该第二基站信息，确定切换位置；该终端设备在到达该切换位置时进行小区切换。
本发明实施例提供的基于电子地图的小区切换方法，结合电子地图信息和高精度定位，通过终端设备获取第一基站信息和第二基站信息，能够提前确定切换位置，并在到达该切换位置时进行小区切换，大大提高了切换的成功率，有效地避免了终端设备已经离开源基站的覆盖区，而该终端设备的切换尚未完成的情况发生，提高了用户体验，同时极大地降低了智能交通网络中的切换中断时间，使得高速移动的终端设备在切换阶段也处于网络的控制之中，降低了交通事故的发生率。
在第一方面的第一种可能的实现方式中，该终端设备根据该第一基站信息和该第二基站信息，确定切换位置，包括：该终端设备将第一切换边界确定为该切换位置，该第一切换边界为该第一基站覆盖的第一球体和该第二基站覆盖的第二球体相交部分的垂直横切面。
结合第一方面的上述可能的实现方式，在第一方面的第二种可能的实现方式中，在该终端设备根据该第一基站信息和该第二基站信息，确定切换位置之前，该方法还包括：该终端设备获取该终端设备的移动速度；该终端设备根据该第一基站信息和该第二基站信息，确定切换位置，包括：该终端设备根据该第一基站信息、该第二基站信息和该移动速度，确定该切换位置。
结合第一方面的上述可能的实现方式，在第一方面的第三种可能的实现方式中，该终端设备根据该第一基站信息、该第二基站信息和该移动速度，确定该切换位置，包括：当该移动速度小于第一阈值时，该终端设备将第一切换边界确定为该切换位置，该第一切换边界为该第一基站覆盖的第一球体和该第二基站覆盖的第二球体相交部分的垂直横切面；当该移动速度大于第二阈值时，该终端设备将第三切换边界确定为该切换位置，该第三切换边界为该第二球体的球面在该第一球体的部分；当该移动速度大于该第一阈值且小于该第二阈值时，该终端设备将第二切换边界确定为该切换位置，该第二切换边界位于该第一切换边界和该第三切换边界之间；其中，该第一阈值小于该第二阈值。
第二方面，提供了一种终端设备，用于执行上述第一方面或第一方面的任意可能的实现方式中的方法。具体地，该终端设备包括用于执行上述第一方面或第一方面的任意可能的实现方式中的方法的单元。
第三方面，提供了一种终端设备，该终端设备包括：接收器、发送器、存储器、处理器和总线系统。其中，该接收器、该发送器、该存储器和该处理器通过该总线系统相连，该存储器用于存储指令，该处理器用于执行该存储器存储的指令，以控制接收器接收信号，并控制发送器发送信号，并且当该处理器执行该存储器存储的指令时，该执行使得该处理器执行第一方面或第一方面的任意可能的实现方式中的方法。
第四方面，提供了一种计算机可读介质，用于存储计算机程序，该计算机程序包括用于执行第一方面或第一方面的任意可能的实现方式中的方法的指令。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对本发明实施例中所需要使用的附图作简单地介绍，显而易见地，下面所描述的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例应用的无线通信系统的示意图。
图2是本发明实施例提供的基于电子地图的小区切换方法的示意性流程图。
图3是本发明实施例提供的基于电子地图的小区切换方法的示意图。
图4是本发明实施例提供的另一基于电子地图的小区切换方法的示意图。
图5是本发明实施例提供的终端设备的示意性框图。
图6是本发明实施例提供的另一终端设备的示意性框图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明的一部分实施例，而不是全部实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例，都应属于本发明保护的范围。
本发明实施例的技术方案可以应用于各种通信系统，例如：全球移动通讯(Global System of Mobile communication，简称为“GSM”)系统、码分多 址(Code Division Multiple Access，简称为“CDMA”)系统、宽带码分多址(Wideband Code Division Multiple Access，简称为“WCDMA”)系统、通用分组无线业务(General Packet Radio Service，简称为“GPRS”)、长期演进(Long Term Evolution，简称为“LTE”)系统、LTE频分双工(Frequency Division Duplex，简称为“FDD”)系统、LTE时分双工(Time Division Duplex，简称为“TDD”)、通用移动通信系统(Universal Mobile Telecommunication System，简称为“UMTS”)或全球互联微波接入(Worldwide Interoperability for Microwave Access，简称为“WiMAX”)通信系统或未来的5G系统等。
图1示出了本发明实施例应用的无线通信系统100。该无线通信系统100可以包括多个网络设备，例如包括三个网络设备，分别为110、120和130。网络设备110、120和130可以是与终端设备通信的设备，如基站或基站控制器等。每个网络设备可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域(小区)内的终端设备(例如UE)进行通信。该网络设备110、120和130可以是GSM系统或码分多址(Code Division Multiple Access，简称为“CDMA”)系统中的基站(Base Transceiver Station，简称为“BTS”)，也可以是WCDMA系统中的基站(NodeB，简称为“NB”)，还可以是LTE系统中的演进型基站(Evolutional Node B，简称为“eNB”或“eNodeB”)，或者是云无线接入网络(Cloud Radio Access Network，简称为“CRAN”)中的无线控制器，或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备、未来5G网络中的网络侧设备或者未来演进的公共陆地移动网络(Public Land Mobile Network，简称为“PLMN”)中的网络设备等。本发明实施例仅以基站为例进行说明，但本发明并不限于此。
该无线通信系统100还包括位于不同网络设备覆盖范围内的多个终端设备，如图1中位于基站120覆盖范围内的终端设备140。该终端设备140是可以高速移动的。该终端设备140可以指接入终端、用户设备(User Equipment，简称为“UE”)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，简称为“SIP”)电话、无线本地环路(Wireless Local Loop，简称为“WLL”)站、个人数字处理(Personal Digital Assistant，简称为“PDA”)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处 理设备、车载设备、可穿戴设备、未来5G网络中的终端设备或者未来演进的公共陆地移动网络(Public Land Mobile Network，简称为“PLMN”)中的终端设备等。
图1示例性地示出了三个基站和一个终端设备，可选地，该无线通信系统100可以包括多个基站并且每个基站的覆盖范围内可以包括其它数量的终端设备，本发明实施例对此不做限定。
可选地，该无线通信系统100还可以包括网络控制器、移动管理实体等其他网络实体，本发明实施例不限于此。
图2是本发明实施例提供的基于电子地图的小区切换方法200的示意性流程图，该方法200可以应用于图1所示的无线通信系统100，但本发明实施例不限于此。
S210，终端设备从电子地图中获取第一基站信息和第二基站信息，该第一基站信息用于表示第一基站的位置和覆盖范围，该第二基站信息用于表示第二基站的位置和覆盖范围，该第二基站为该终端设备移动方向上与该第一基站相邻的基站；
具体地，该第一基站可以是该终端设备当前正在使用的基站，该第二基站可以是该终端设备移动方向上与该第一基站相邻的基站。由于已经进行了路径规划，该终端设备在电子地图中的移动路径是已知的，因此该终端设备的移动方向也是已知的，终端设备根据自身的移动方向就可以确定出该第二基站。
在本发明实施例中，该终端设备可以从电子地图中获取第一基站信息和第二基站信息。应理解，电子地图中记录了各个基站的信息，包括各个基站的位置和覆盖范围，例如坐标，可以包括该终端设备的经度、纬度和海拔(与距离地面的高度有关)，该终端设备可以直接从该电子地图中获取该第一基站信息和该第二基站信息。这样，由于基站的位置和覆盖范围等信息放在电子地图上，终端设备可以直接获取，不需要基站发送，从而减少了信令开销，提高了系统效率和频谱利用率。
S220，该终端设备根据该第一基站信息和该第二基站信息，确定切换位置；
具体地，在确定该第一基站的位置和覆盖范围、该第二基站的位置和覆盖范围之后，该终端设备就可以确定出该终端设备的切换位置。
S230，该终端设备在到达该切换位置时进行小区切换。
具体地，该终端设备可以基于自身配置的GIS地图和GPS模块获取卫星定位信息，故该终端设备可以根据高精度定位技术获取到自身在电子地图中的当前位置信息，例如坐标，可以包括该终端设备的经度、纬度和海拔(与距离地面的高度有关)。此外，在智能交通系统中，采用使用中心路径规划的自动驾驶，所以终端设备要移动到某一位置在电子地图中是可以预知的，甚至结合该终端设备的移动速度，该终端设备到达该位置的时间也是可以预知的。该终端设备在确定了切换位置之后，就可以在到达该切换位置时进行小区切换。
在现有技术中，由于终端设备的位置不断变化以及每个小区覆盖范围的有限性，引入基于覆盖的切换来保证终端设备业务的连续性。基站通过测量控制消息，下发相关配置信息，终端设备据此完成切换测量，并在基站控制下完成切换的过程，保证不间断的通信服务。在全球移动通信系统(Global System for Mobile Communication，简称为“GSM”)中，因为源基站和目标基站的电波频率不同，移动台在与源基站的联系信道切断后，往往不能马上建立目标基站的新信道，这时就出现一个短暂的通话中断时间，这个时间大约是200毫秒。小区切换的典型过程为：测量控制—>测量报告—>切换判决—>切换执行—>新的测量控制。由于GSM是异频组网，邻小区干扰较小，测量一下信号强度就可以了。现有技术会依靠RSSI、RSRP或RSRQ来判断终端设备是否需要进行小区切换，但是仅仅依靠RSSI、RSRP或RSRQ来确定终端设备进行小区切换的位置很不及时，也不可靠。以切换的通话中断时间为200ms为例，当终端设备的移动速度为108km/h，即30m/s时，在200ms内，该终端设备的移动距离为30×0.2＝6m。因此，对于高速移动的终端设备来说，很可能会出现终端设备已经离开源小区，而切换尚未完成的情况。
而本发明实施例提供的基于电子地图的小区切换方法，结合电子地图信息和高精度定位，通过终端设备获取第一基站信息和第二基站信息，提前确定切换位置，并在到达该切换位置时进行小区切换，大大提高了切换的成功率，有效地避免了终端设备已经离开源基站的覆盖区，而该终端设备的切换尚未完成的情况发生，提高了用户体验，同时极大地降低了智能交通网络中的切换中断时间，使得高速移动的终端设备在切换阶段也处于网络的控制之中，降低了交通事故的发生率。
应理解，在本发明实施例中，该终端设备可以采用多种方式确定该终端设备的切换位置，本发明实施例对此不作限定。
具体地，作为一个可选实施例，该终端设备根据该第一基站信息和该第二基站信息，确定切换位置，包括：
该终端设备将第一切换边界确定为该切换位置，该第一切换边界为该第一基站覆盖的第一球体和该第二基站覆盖的第二球体相交部分的垂直横切面。
具体地，如图3所示，可以假设第一基站为110，第二基站为120，那么第一切换边界可以设定为第一基站110覆盖的第一球体和第二基站为120覆盖的第二球体相交部分的中间的垂直横切面，其中第一球体以第一基站110为中心，R1为半径；第二球体是以第二基站120为中心，R2为半径(R1是第一基站的覆盖半径，R2是第二基站的覆盖半径)。
作为一个可选实施例，在该终端设备根据该第一基站信息和该第二基站信息，确定切换位置之前，该方法还包括：
该终端设备获取该终端设备的移动速度；
该终端设备根据该第一基站信息和该第二基站信息，确定切换位置，包括：
该终端设备根据该第一基站信息、该第二基站信息和该移动速度，确定该切换位置。
具体地，作为一个可选实施例，该终端设备根据该第一基站信息、该第二基站信息和该移动速度，确定该切换位置，包括：
当该移动速度小于第一阈值时，该终端设备将第一切换边界确定为该切换位置，该第一切换边界为该第一基站覆盖的第一球体和该第二基站覆盖的第二球体相交部分的垂直横切面；
当该移动速度大于第二阈值时，该终端设备将第三切换边界确定为该切换位置，该第三切换边界为该第二球体的球面在该第一球体的部分；
当该移动速度大于该第一阈值且小于该第二阈值时，该终端设备将第二切换边界确定为该切换位置，该第二切换边界位于该第一切换边界和该第三切换边界之间；
其中，该第一阈值小于该第二阈值。
具体而言，在本发明实施例中，该终端设备可以根据自身的移动速度， 设置三个切换边界来确定该终端设备的切换位置，如图4所示，本发明实施例将切换边界划分为第一切换边界、第二切换边界和第三切换边界，该终端设备可以根据不同情况在不同的切换边界进行小区切换。例如，设置上述的第一阈值为10km/h，第二阈值为100km/h，该终端设备确定切换位置可以分为下面三种情况：
(1)当该终端设备的移动速度小于10km/h时，确定第一切换边界为该终端设备的切换位置。该第一切换边界可以设置为第一球体和第二球体相交部分的中间的垂直横切面，其中，第一球体是以第一基站110为中心，R1为半径；第二球体是以第二基站120为中心，R2为半径(R1是第一基站110的覆盖半径，R2是第二基站120的覆盖半径)。
(2)当该终端设备的移动速度大于100km/h时，确定第三切换边界为该终端设备的切换位置。该第三切换边界可以设置为以第二基站120为中心，R2为半径的球面在以第一基站110为中心，R1为半径的球体的部分。
(3)当该终端设备的移动速度小于100km/h，并且大于10km/h时，确定第二切换边界为该终端设备的切换位置。该第二切换边界可以设置为第一切换边界和第三切换边界的中间部分。
在本发明实施例中，通过设置多个切换边界，更符合实际，更能使终端设备在离开源小区的覆盖范围之前及时地完成小区切换，大大提高切换的成功率，此外，该终端设备可以根据自身的移动速度，合理预估切换时间，大大提高用户体验。
应理解，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本发明实施例的实施过程构成任何限定。
本发明实施例提供的基于电子地图的小区切换方法既可以用于通用蜂窝系统，还可以用于专用集群通信系统，本发明实施例对此不做限定。
上文中结合图1至图4，详细描述了根据本发明实施例的基于电子地图的小区切换方法，下面将结合图5至图6，详细描述根据本发明实施例的终端设备。
图5示出了本发明实施例的终端设备300，该终端设备300包括：
获取单元310，用于从电子地图中获取第一基站信息和第二基站信息，该第一基站信息用于表示第一基站的位置和覆盖范围，该第二基站信息用于 表示第二基站的位置和覆盖范围，该第二基站为该终端设备移动方向上与该第一基站相邻的基站；
确定单元320，用于根据该第一基站信息和该第二基站信息，确定切换位置；
切换单元330，用于在到达该切换位置时进行小区切换。
可选地，该确定单元具体用于：
将第一切换边界确定为该切换位置，该第一切换边界为该第一基站覆盖的第一球体和该第二基站覆盖的第二球体相交部分的垂直横切面。
可选地，该获取单元还用于：
在根据该第一基站信息和该第二基站信息，确定切换位置之前，获取该终端设备的移动速度；
该确定单元具体用于：
根据该第一基站信息、该第二基站信息和该移动速度，确定该切换位置。
可选地，该确定单元具体用于：
当该移动速度小于第一阈值时，将第一切换边界确定为该切换位置，该第一切换边界为该第一基站覆盖的第一球体和该第二基站覆盖的第二球体相交部分的垂直横切面；
当该移动速度大于第二阈值时，将第三切换边界确定为该切换位置，该第三切换边界为该第二球体的球面在该第一球体的部分；
当该移动速度大于该第一阈值且小于该第二阈值时，将第二切换边界确定为该切换位置，该第二切换边界位于该第一切换边界和该第三切换边界之间；
其中，该第一阈值小于该第二阈值。
应理解，这里的终端设备300以功能单元的形式体现。这里的术语“单元”可以指应用特有集成电路(Application Specific Integrated Circuit，ASIC)、电子电路、用于执行一个或多个软件或固件程序的处理器(例如共享处理器、专有处理器或组处理器等)和存储器、合并逻辑电路和/或其它支持所描述的功能的合适组件。在一个可选例子中，本领域技术人员可以理解，终端设备300可以用于执行上述方法实施例中与终端设备对应的各个流程和/或步骤，为避免重复，在此不再赘述。
图6示出了本发明实施例提供的终端设备400，该终端设备400包括接 收器410、处理器420、发送器430、存储器440和总线系统450。其中，接收器410、处理器420、发送器430和存储器440通过总线系统450相连，该存储器440用于存储指令，该处理器420用于执行该存储器440存储的指令，以控制该接收器410接收信号，并控制该发送器430发送指令。
其中，接收器410用于从电子地图中获取第一基站信息和第二基站信息，该第一基站信息用于表示第一基站的位置和覆盖范围，该第二基站信息用于表示第二基站的位置和覆盖范围，该第二基站为该终端设备移动方向上与该第一基站相邻的基站；
处理器420用于根据该第一基站信息和该第二基站信息，确定切换位置；
处理器420还用于在到达该切换位置时进行小区切换。
可选地，该处理器420具体用于：
将第一切换边界确定为该切换位置，该第一切换边界为该第一基站覆盖的第一球体和该第二基站覆盖的第二球体相交部分的垂直横切面。
可选地，该接收器410还用于：
在该根据该第一基站信息和该第二基站信息，确定切换位置之前，获取该终端设备的移动速度；
该处理器420具体用于：
根据该第一基站信息、该第二基站信息和该移动速度，确定该切换位置。
可选地，该处理器420具体用于：
当该移动速度小于第一阈值时，将第一切换边界确定为该切换位置，该第一切换边界为该第一基站覆盖的第一球体和该第二基站覆盖的第二球体相交部分的垂直横切面；
当该移动速度大于第二阈值时，将第三切换边界确定为该切换位置，该第三切换边界为该第二球体的球面在该第一球体的部分；
当该移动速度大于该第一阈值且小于该第二阈值时，将第二切换边界确定为该切换位置，该第二切换边界位于该第一切换边界和该第三切换边界之间；
其中，该第一阈值小于该第二阈值。
应理解，终端设备400可以用于执行上述方法实施例中与终端设备对应的各个步骤和/或流程。可选地，该存储器440可以包括只读存储器和随机存取存储器，并向处理器提供指令和数据。存储器的一部分还可以包括非易失 性随机存取存储器。例如，存储器还可以存储设备类型的信息。该处理器420可以用于执行存储器中存储的指令，并且该处理器执行该指令时，该处理器可以执行上述方法实施例中与终端设备对应的各个步骤和/或流程。
应理解，在本发明实施例中，该处理器可以是中央处理单元(Central Processing Unit，CPU)，该处理器还可以是其他通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
在实现过程中，上述方法的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。结合本发明实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器执行存储器中的指令，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。
本领域普通技术人员可以意识到，结合本文中所公开的实施例中描述的各方法步骤和单元，能够以电子硬件、计算机软件或者二者的结合来实现，为了清楚地说明硬件和软件的可互换性，在上述说明中已经按照功能一般性地描述了各实施例的步骤及组成。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。本领域普通技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。
所属领域的技术人员可以清楚地了解到，为了描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口、装置或单元的间接耦合或 通信连接，也可以是电的，机械的或其它的形式连接。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本发明实施例方案的目的。
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以是两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分，或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，简称为“ROM”)、随机存取存储器(Random Access Memory，简称为“RAM”)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到各种等效的修改或替换，这些修改或替换都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以权利要求的保护范围为准。

Claims (8)

  1. 一种基于电子地图的小区切换方法，其特征在于，包括：
    终端设备从电子地图中获取第一基站信息和第二基站信息，所述第一基站信息用于表示第一基站的位置和覆盖范围，所述第二基站信息用于表示第二基站的位置和覆盖范围，所述第二基站为所述终端设备移动方向上与所述第一基站相邻的基站；
    所述终端设备根据所述第一基站信息和所述第二基站信息，确定切换位置；
    所述终端设备在到达所述切换位置时进行小区切换。
  2. 根据权利要求1所述的方法，其特征在于，所述终端设备根据所述第一基站信息和所述第二基站信息，确定切换位置，包括：
    所述终端设备将第一切换边界确定为所述切换位置，所述第一切换边界为所述第一基站覆盖的第一球体和所述第二基站覆盖的第二球体相交部分的垂直横切面。
  3. 根据权利要求1所述的方法，其特征在于，在所述终端设备根据所述第一基站信息和所述第二基站信息，确定切换位置之前，所述方法还包括：
    所述终端设备获取所述终端设备的移动速度；
    所述终端设备根据所述第一基站信息和所述第二基站信息，确定切换位置，包括：
    所述终端设备根据所述第一基站信息、所述第二基站信息和所述移动速度，确定所述切换位置。
  4. 根据权利要求3所述的方法，其特征在于，所述终端设备根据所述第一基站信息、所述第二基站信息和所述移动速度，确定所述切换位置，包括：
    当所述移动速度小于第一阈值时，所述终端设备将第一切换边界确定为所述切换位置，所述第一切换边界为所述第一基站覆盖的第一球体和所述第二基站覆盖的第二球体相交部分的垂直横切面；
    当所述移动速度大于第二阈值时，所述终端设备将第三切换边界确定为所述切换位置，所述第三切换边界为所述第二球体的球面在所述第一球体的部分；
    当所述移动速度大于所述第一阈值且小于所述第二阈值时，所述终端设 备将第二切换边界确定为所述切换位置，所述第二切换边界位于所述第一切换边界和所述第三切换边界之间；
    其中，所述第一阈值小于所述第二阈值。
  5. 一种终端设备，其特征在于，包括：
    获取单元，用于从电子地图中获取第一基站信息和第二基站信息，所述第一基站信息用于表示第一基站的位置和覆盖范围，所述第二基站信息用于表示第二基站的位置和覆盖范围，所述第二基站为所述终端设备移动方向上与所述第一基站相邻的基站；
    确定单元，用于根据所述第一基站信息和所述第二基站信息，确定切换位置；
    切换单元，用于在到达所述切换位置时进行小区切换。
  6. 根据权利要求5所述的终端设备，其特征在于，所述确定单元具体用于：
    将第一切换边界确定为所述切换位置，所述第一切换边界为所述第一基站覆盖的第一球体和所述第二基站覆盖的第二球体相交部分的垂直横切面。
  7. 根据权利要求5所述的终端设备，其特征在于，所述获取单元还用于：
    在所述根据所述第一基站信息和所述第二基站信息，确定切换位置之前，获取所述终端设备的移动速度；
    所述确定单元具体用于：
    根据所述第一基站信息、所述第二基站信息和所述移动速度，确定所述切换位置。
  8. 根据权利要求7所述的终端设备，其特征在于，所述确定单元具体用于：
    当所述移动速度小于第一阈值时，将第一切换边界确定为所述切换位置，所述第一切换边界为所述第一基站覆盖的第一球体和所述第二基站覆盖的第二球体相交部分的垂直横切面；
    当所述移动速度大于第二阈值时，将第三切换边界确定为所述切换位置，所述第三切换边界为所述第二球体的球面在所述第一球体的部分；
    当所述移动速度大于所述第一阈值且小于所述第二阈值时，将第二切换边界确定为所述切换位置，所述第二切换边界位于所述第一切换边界和所述 第三切换边界之间；
    其中，所述第一阈值小于所述第二阈值。
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111884694A (zh) * 2020-07-28 2020-11-03 中国联合网络通信集团有限公司 波束赋形控制方法、装置、电子设备及存储介质
CN116546577A (zh) * 2023-07-07 2023-08-04 中赣通信(集团)有限公司 一种用于通信切换的多基站智能调度方法及系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103686998A (zh) * 2013-12-11 2014-03-26 上海大唐移动通信设备有限公司 一种基于aoa的切换位置定位方法及装置
CN103874150A (zh) * 2012-12-17 2014-06-18 华为技术有限公司 小区切换的方法、基站和用户设备
CN104168646A (zh) * 2013-05-16 2014-11-26 百度在线网络技术（北京）有限公司 无线接入设备的定位方法及装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103874150A (zh) * 2012-12-17 2014-06-18 华为技术有限公司 小区切换的方法、基站和用户设备
CN104168646A (zh) * 2013-05-16 2014-11-26 百度在线网络技术（北京）有限公司 无线接入设备的定位方法及装置
CN103686998A (zh) * 2013-12-11 2014-03-26 上海大唐移动通信设备有限公司 一种基于aoa的切换位置定位方法及装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111884694A (zh) * 2020-07-28 2020-11-03 中国联合网络通信集团有限公司 波束赋形控制方法、装置、电子设备及存储介质
CN111884694B (zh) * 2020-07-28 2023-03-24 中国联合网络通信集团有限公司 波束赋形控制方法、装置、电子设备及存储介质
CN116546577A (zh) * 2023-07-07 2023-08-04 中赣通信(集团)有限公司 一种用于通信切换的多基站智能调度方法及系统
CN116546577B (zh) * 2023-07-07 2023-09-26 中赣通信(集团)有限公司 一种用于通信切换的多基站智能调度方法及系统

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