WO2017101880A1 - 一种大覆盖面积下的室内定位方法及系统 - Google Patents

一种大覆盖面积下的室内定位方法及系统 Download PDF

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Publication number
WO2017101880A1
WO2017101880A1 PCT/CN2016/110801 CN2016110801W WO2017101880A1 WO 2017101880 A1 WO2017101880 A1 WO 2017101880A1 CN 2016110801 W CN2016110801 W CN 2016110801W WO 2017101880 A1 WO2017101880 A1 WO 2017101880A1
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Prior art keywords
mobile terminal
radio frequency
measurement
frequency unit
unit
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PCT/CN2016/110801
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English (en)
French (fr)
Inventor
侯筠
刘强
杜高鹏
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中兴通讯股份有限公司
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Publication of WO2017101880A1 publication Critical patent/WO2017101880A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/029—Location-based management or tracking services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/025—Services making use of location information using location based information parameters
    • H04W4/026—Services making use of location information using location based information parameters using orientation information, e.g. compass
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/33—Services specially adapted for particular environments, situations or purposes for indoor environments, e.g. buildings
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Definitions

  • the present invention relates to the field of indoor positioning technology, and in particular, to an indoor positioning method and system under a large coverage area.
  • the location of the LTE user can determine the latitude and longitude through the transmission of information between the base station and the core network.
  • the network With the rapid development of the network, it is only known that the user's latitude and longitude can no longer meet the requirements, especially in the indoor public areas under large coverage areas, such as airports, large shopping malls, etc., when it is necessary to determine the specific location and moving route of a certain user.
  • the previous positioning method can only locate which cell. However, if the entire room is a residential area, it is impossible to accurately locate information such as specific floors or even specific rooms.
  • the main object of the present invention is to provide an indoor positioning method and system under a large coverage area, which aims to solve the problem that location information and movement trajectory of a specific floor or room number of a user cannot be located in an indoor public area under a large coverage area.
  • the present invention provides an indoor positioning method under a large coverage area, and the method includes the steps of:
  • the indoor positioning function is activated, and the measurement information of the mobile terminal is measured by the radio frequency unit;
  • the identifier of the radio frequency unit obtained by the image acquisition module is indexed according to the ID number of the radio frequency unit that covers the mobile terminal acquired by the wireless side data collection module.
  • the range is calculated, and the distance between the mobile terminal and the center point of the coverage area is calculated, and the indoor location information of the mobile terminal is obtained as follows:
  • the coverage of the radio frequency unit covering the mobile terminal in different measurement periods is sequentially acquired;
  • the initiating indoor positioning function the measurement information of the mobile terminal measured by the radio frequency unit is specifically:
  • the positioning measurement is turned off one by one for each RF unit, and then the positioning measurement of each RF unit is gradually opened;
  • the measurement information of the mobile terminal is measured by a radio frequency measurement module of the radio unit, and the measurement information of the mobile terminal includes: an uplink arrival time, a signal strength, a number of mobile terminals, a mobile terminal ID, and a radio frequency unit ID.
  • the initiating indoor positioning function the measurement information of the mobile terminal measured by the radio frequency unit is specifically:
  • the positioning measurement of all the radio units is turned on, and the positioning measurement is sent to the mobile terminal;
  • the measurement information of the mobile terminal is measured by a radio frequency measurement module of the radio unit, and the measurement information of the mobile terminal includes: an uplink arrival time, a signal strength, a number of mobile terminals, a mobile terminal ID, and a radio frequency unit ID.
  • the determining, by the image acquisition module, the coverage of each radio frequency unit is specifically:
  • the image acquisition module acquires a base station network topology map and an indoor map
  • each RF unit ID in the network topology diagram with the optical port number of the base station to which each radio unit is connected, the cell ID, the frame, frame, slot information of the board where the cell is located, and the actual indoor map to determine each RF.
  • the coverage of the unit, wherein the coverage is specific to the floor or room number.
  • the present invention also provides an indoor positioning system under a large coverage area, the system comprising: a positioning server, a radio frequency unit, a baseband processing unit, and a mobile terminal, wherein the positioning server includes: a wireless side a data acquisition module, an image acquisition module, and a calculation module;
  • the radio frequency unit is configured to measure measurement information of the mobile terminal after starting the indoor positioning function
  • the baseband processing unit is configured to receive measurement information of the mobile terminal and an ID number of the radio frequency unit, and send the measurement information of the mobile terminal and the ID number of the radio frequency unit to the wireless side data collection module;
  • the image acquisition module is configured to determine a coverage range of each radio frequency unit
  • the calculating module is configured to: according to the ID number of the radio frequency unit that covers the mobile terminal acquired by the wireless side data collection module, index the coverage of the radio frequency unit obtained by the image acquisition module, and calculate the The distance of the mobile terminal from the center point of the coverage area obtains indoor location information of the mobile terminal.
  • the calculating module is further configured to acquire, by using the wireless side data collection module, an ID number of a radio frequency unit that covers the mobile terminal;
  • the coverage of the radio frequency unit covering the mobile terminal in different measurement periods is sequentially acquired;
  • the radio frequency unit comprises:
  • the startup module is configured to open the indoor positioning function switch and activate the indoor positioning function
  • An obtaining module configured to obtain international mobile subscriber identity information of the mobile terminal by using an authentication process
  • the first measurement module is configured to close the positioning measurement one by one for each radio frequency unit according to the measurement mode and the measurement period configured on the operation and maintenance center, and then gradually open the positioning measurement of each radio frequency unit;
  • the radio frequency measurement module is configured to measure measurement information of the mobile terminal by using a radio frequency measurement module of the radio frequency unit, where the measurement information of the mobile terminal includes: an uplink arrival time, a signal strength, a number of mobile terminals, a mobile terminal ID, and a radio frequency unit ID.
  • the radio frequency unit further includes:
  • the second measurement module is configured to open the positioning measurement of all the radio frequency units according to the measurement mode and the measurement period configured on the operation and maintenance center, and deliver the positioning measurement to the mobile terminal.
  • the image acquisition module comprises:
  • An acquisition module configured to acquire a base station network topology map and an indoor map
  • a matching module configured to match each radio unit ID in the network topology diagram with the optical port number of the base station to which each radio unit is connected, the cell ID, the shelf, frame, slot information of the board where the cell is located, and the actual indoor map. Thereby determining the coverage of each radio unit, wherein the coverage is specific to the floor or room number.
  • the indoor positioning method and system under the large coverage area proposed by the invention locates the detailed location information of the floor or room where the mobile terminal is located by the indoor distribution system covered by the plurality of radio frequency units, thereby solving the current indoor coverage for the large coverage area.
  • the problem that the user cannot locate the floor or the room in the distribution system greatly improves the correctness, accuracy, and reliability of the LTE positioning function, and effectively provides the network operator with a solution for positioning the indoor distribution system and reduces the operation. Cost, improve the user experience.
  • FIG. 1 is a schematic diagram of a wireless communication system for implementing a mobile terminal according to various embodiments of the present invention
  • Embodiment 2 is a flowchart of an indoor positioning method under a large coverage area according to Embodiment 1 of the present invention
  • step S40 in FIG. 2 is a flow chart of a specific method of step S40 in FIG. 2;
  • step S10 in FIG. 2 is a flow chart of a specific method of step S10 in FIG. 2;
  • FIG. 5 is a schematic diagram of indoor positioning under a large coverage area according to Embodiment 1 of the present invention.
  • FIG. 6 is a schematic diagram of another indoor positioning under a large coverage area according to Embodiment 1 of the present invention.
  • FIG. 7 is a schematic diagram of another indoor positioning under a large coverage area according to Embodiment 1 of the present invention.
  • FIG. 8 is a schematic diagram of another indoor positioning under a large coverage area according to Embodiment 1 of the present invention.
  • FIG. 9 is a schematic diagram of another indoor positioning under a large coverage area according to Embodiment 1 of the present invention.
  • FIG. 10 is a flowchart of an indoor positioning method under a large coverage area according to Embodiment 2 of the present invention.
  • FIG. 11 is a structural diagram of an indoor positioning system under a large coverage area according to Embodiment 3 of the present invention.
  • FIG. 12 is a message flow diagram of an indoor positioning system under a large coverage area according to Embodiment 3 of the present invention.
  • the mobile terminal can be implemented in various forms.
  • the terminal described in the present invention may include, for example, a mobile phone, a smart phone, a notebook computer, a digital broadcast receiver, a PDA (Personal Digital Assistant), a PAD (Tablet), a PMP (Portable Multimedia Player), a navigation device, etc.
  • Mobile terminals and fixed terminals such as digital TVs, desktop computers, and the like.
  • the terminal is a mobile terminal.
  • those skilled in the art will appreciate that configurations in accordance with embodiments of the present invention can be applied to fixed type terminals in addition to components that are specifically for mobile purposes.
  • Such communication systems may use different air interfaces and/or physical layers.
  • air interfaces used by communication systems include, for example, Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA), Code Division Multiple Access (CDMA), and Universal Mobile Telecommunications System (UMTS) (in particular, Long Term Evolution (LTE)). ), Global System for Mobile Communications (GSM), etc.
  • FDMA Frequency Division Multiple Access
  • TDMA Time Division Multiple Access
  • CDMA Code Division Multiple Access
  • UMTS Universal Mobile Telecommunications System
  • LTE Long Term Evolution
  • GSM Global System for Mobile Communications
  • the following description relates to a CDMA communication system, but such teachings are equally applicable to other types of systems.
  • a CDMA wireless communication system may include a plurality of mobile terminals 100, a plurality of base stations (BS) 270, a base station controller (BSC) 275, and a mobile switching center (MSC) 280.
  • the MSC 280 is configured to interface with a public switched telephone network (PSTN) 290.
  • PSTN public switched telephone network
  • the MSC 280 is also configured to interface with a BSC 275 that can be coupled to the base station 270 via a backhaul line.
  • the backhaul line can be constructed in accordance with any of a number of well known interfaces including, for example, E1/T1, ATM, IP, PPP, Frame Relay, HDSL, ADSL, or xDSL. It will be appreciated that the system as shown in FIG. 1 can include multiple BSCs 275.
  • Each BS 270 can serve one or more partitions (or regions), each of which is covered by a multi-directional antenna or an antenna directed to a particular direction radially away from the BS 270. Alternatively, each partition may be covered by two or more antennas for diversity reception. Each BS 270 can be configured to support multiple frequency allocations, and each frequency allocation has a particular frequency spectrum (eg, 1.25 MHz, 5 MHz, etc.).
  • BS 270 may also be referred to as a Base Transceiver Subsystem (BTS) or other equivalent terminology.
  • BTS Base Transceiver Subsystem
  • the term "base station” can be used to generally refer to a single BSC 275 and at least one BS 270.
  • a base station can also be referred to as a "cell station.”
  • each partition of a particular BS 270 may be referred to as a plurality of cellular stations.
  • a broadcast transmitter (BT) 295 transmits a broadcast signal to the mobile terminal 100 operating within the system.
  • a broadcast receiving module as shown in FIG. 1 is provided at the mobile terminal 100 to receive a broadcast signal transmitted by the BT 295.
  • GPS Global Positioning System
  • the satellite 300 helps locate at least one of the plurality of mobile terminals 100.
  • a plurality of satellites 300 are depicted, but it is understood that useful positioning information can be obtained using any number of satellites.
  • the GPS module as shown in Figure 1 is typically configured to cooperate with satellite 300 to obtain desired positioning information. Instead of GPS tracking technology or in addition to GPS tracking technology, other techniques that can track the location of the mobile terminal can be used. Additionally, at least one GPS satellite 300 can selectively or additionally process satellite DMB transmissions.
  • BS 270 receives reverse link signals from various mobile terminals 100.
  • Mobile terminal 100 typically participates in calls, messaging, and other types of communications.
  • Each reverse link signal received by a particular base station 270 is processed within a particular BS 270.
  • the obtained data is forwarded to the relevant BSC 275.
  • the BSC provides call resource allocation and coordinated mobility management functions including a soft handoff procedure between the BSs 270.
  • the BSC 275 also routes the received data to the MSC 280, which provides additional routing services for interfacing with the PSTN 290.
  • PSTN 290 interfaces with MSC 280, which forms an interface with BSC 275, and BSC 275 controls BS 270 accordingly to transmit forward link signals to mobile terminal 100.
  • the first embodiment of the present invention provides an indoor positioning method under a large coverage area, and the method includes the following steps:
  • S20 Send measurement information of the mobile terminal and an ID number of the radio frequency unit to a wireless side data collection module.
  • the detailed location information such as the floor or the room where the mobile terminal is located is located in the indoor distribution system covered by the plurality of radio frequency units, thereby solving the problem that the user cannot locate the floor or the room in the indoor distribution system for the large coverage area.
  • the problem is that the correctness, accuracy, and reliability of the LTE positioning function are greatly improved, and the network operator is provided with a solution for positioning the indoor distributed system, thereby reducing operating costs and improving user experience.
  • the Pico Radio Remote Unit includes a radio frequency measurement module, configured to measure measurement information of the mobile terminal UE, where the measurement information includes an uplink arrival time TA, a signal strength PS, and a mobile terminal.
  • the number of the UE, the mobile terminal ID, and the radio frequency unit ID are used by the base station processing unit (BBU) to transmit the measurement information of the mobile terminal and the ID number of the radio frequency unit to the radio side data collection module.
  • BBU base station processing unit
  • the step S40 when the location of the mobile terminal changes in real time, the step S40 includes:
  • the mobile terminal that changes the location in real time, and sequentially acquires the coverage of the radio unit that covers the mobile terminal in different measurement periods.
  • the step S10 includes:
  • the positioning measurement is turned off one by one for each RF unit, and then the positioning measurement of each RF unit is gradually opened;
  • the measurement information of the mobile terminal is measured by a radio frequency measurement module of the radio frequency unit, where the measurement information of the mobile terminal includes: an uplink arrival time, a signal strength, a number of mobile terminals, a mobile terminal ID, and a radio frequency unit ID.
  • the positioning measurement is turned off one by one for each radio frequency unit in each measurement, and then the positioning measurement of each radio frequency unit is gradually turned on, so that only one radio frequency unit sends measurement information at a time, which can ensure the minimum interference condition.
  • the accuracy of the measured data is improved; the measured signal strength can be used directly as a measurement.
  • step S30 includes:
  • the image acquisition module acquires a base station network topology map and an indoor map
  • each RF unit ID in the network topology diagram with the optical port number of the base station to which each radio unit is connected, the cell ID, the frame, frame, slot information of the board where the cell is located, and the actual indoor map to determine each RF.
  • the coverage of the unit, wherein the coverage is specific to the floor or room number.
  • the radio frequency measurement module of each radio frequency unit is sequentially turned on one by one, and only one mobile terminal is reported in one measurement period for a single mobile terminal.
  • the base station acquires the information of the International Mobile Subscriber Identification Number (IMSI) of the mobile terminal through the core network; and opens the indoor positioning function switch, and the measurement manner according to the configuration on the OMC includes but is not limited to : One-time measurement or periodic measurement.
  • the periodic measurement needs to configure the measurement period.
  • the base station measures the (Rx-Tx) time difference of the signal on the traffic channel, turns off each RF unit one by one, and then gradually turns on the RF of each RF unit.
  • the measurement module sends the location measurement information to the mobile terminal; the base station sends the measurement information of the mobile terminal, the IMSI information, and the ID number of the radio frequency unit to the wireless side data acquisition module; the image acquisition module acquires the base station network topology map and the indoor map; Each RF unit ID and each RF in the network topology The optical port number of the base station to which the unit is connected, the cell ID, the frame, the frame, and the slot information of the board where the cell is located are matched with the actual indoor map, thereby determining the coverage of each radio unit, wherein the coverage is specific to the floor.
  • the information is transmitted to the computing module, and the wireless side data collecting module also transmits the collected data to the computing module, and the computing module further receives the radio frequency unit covering the mobile terminal according to the wireless side data collecting module.
  • the ID number indexes the coverage of the radio frequency unit obtained by the image acquisition module, and calculates the distance of the mobile terminal from the center point of the coverage area to obtain actual indoor location information of the mobile terminal.
  • the radio frequency measurement module of each radio frequency unit is sequentially turned on one by one, and only the entire mobile terminal is reported for one measurement period.
  • the base station measures the (Rx-Tx) time difference of the signal on the traffic channel, and turns off each RF unit one by one, and then gradually turns on the RF measurement module of each RF unit to send the position measurement information to all of the multiple.
  • a mobile terminal the base station sends the measurement information of the multiple mobile terminals, the IMSI information, and the ID number of the radio frequency unit to the wireless side data acquisition module;
  • the image acquisition module acquires the base station network topology map and the indoor map; and each of the network topology maps
  • the radio unit ID and the optical port number of the base station to which each radio unit is connected, the cell ID, and the cell where the cell is located The frame, frame, slot information of the board is matched with the actual indoor map to determine the coverage of each radio unit, wherein the coverage is specific to the floor or room number; this information is passed to the computing module, and the wireless side
  • the data collection module also transmits the collected data of the plurality of mobile terminals to the calculation module, and the calculation module indexes the image
  • the radio frequency measurement module of each radio frequency unit is sequentially turned on one by one, and only one mobile terminal is reported in one measurement period for a single mobile terminal.
  • Measurement information first, after the mobile terminal accesses, the base station acquires the IMSI information of the mobile terminal through the core network; and opens the indoor positioning function switch, and the configuration measurement manner according to the OMC includes but is not limited to: one-time measurement or periodic measurement, and periodic measurement simultaneously The measurement period is configured, the base station measures the (Rx-Tx) time difference of the signal on the traffic channel, and each radio unit is turned off one by one, and then the radio frequency measurement module of each radio unit is gradually opened to send the position measurement information to the mobile terminal; the base station will The measurement information of the mobile terminal, the IMSI information, and the ID number of the radio frequency unit are sent to the wireless side data acquisition module; the image acquisition module acquires the base station network topology map and the indoor map; and each radio unit ID and each
  • the information is matched with the actual indoor map to determine the coverage of each radio unit, wherein the coverage is specific to the floor or room number; this information is passed to the computing module, and the wireless side data acquisition module will also collect
  • the data is transmitted to the calculation module, and the calculation module indexes the coverage of the radio frequency unit obtained by the image acquisition module according to the ID number of the radio frequency unit covering the mobile terminal acquired by the wireless side data acquisition module, and calculates the coverage of the radio frequency unit obtained by the image acquisition module.
  • the distance between the mobile terminal and the center point of the coverage area is obtained, and actual indoor location information of the mobile terminal is obtained.
  • the radio frequency measurement module of each radio frequency unit is sequentially turned on one by one, and only the entire mobile terminal is reported in one measurement period for multiple mobile terminals.
  • the base station acquires the IMSI information of the mobile terminal through the core network; opens the indoor positioning function switch, and the configuration measurement manner according to the OMC includes but is not limited to: one-time measurement or periodic measurement, periodic measurement At the same time, the measurement period needs to be configured.
  • the base station measures the (Rx-Tx) time difference of the signal on the traffic channel, and turns off each RF unit one by one, and then gradually turns on the RF measurement module of each RF unit to send the position measurement information to all the multiple mobiles.
  • the base station sends the measurement information of the multiple mobile terminals, the IMSI information, and the ID number of the radio frequency unit to the wireless side data acquisition module; the image acquisition module acquires the base station network topology map and the indoor map; and each radio frequency in the network topology map
  • the frame, frame, slot information and the actual indoor map are matched to determine the coverage of each radio unit, wherein the coverage is specific to the floor or room number; this information is passed to the computing module, and the wireless side data
  • the acquisition module also transmits the collected data of the plurality of mobile terminals to the calculation module, and the calculation module obtains the image acquisition module according to the ID number of the plurality of radio frequency units covering the mobile terminal acquired by the wireless side data acquisition module.
  • the radio frequency measurement module of all the radio frequency units is turned on, and for one or more mobile terminals, only one or all of the mobile terminals are reported in one measurement period.
  • Measurement information first, after the mobile terminal accesses, the base station acquires the IMSI information of the mobile terminal through the core network; opens the indoor positioning function switch, and the configuration measurement manner according to the OMC includes but is not limited to: one-time measurement or weekly For the periodic measurement, the periodic measurement needs to be configured with the measurement period.
  • the base station measures the (Rx-Tx) time difference of the signal on the traffic channel, turns off each RF unit one by one, and then gradually opens the RF measurement module delivery position of each RF unit.
  • the base station transmitting the measurement information of the plurality of mobile terminals, the IMSI information, and the ID number of the radio frequency unit to the wireless side data acquisition module;
  • the image acquisition module acquires the base station network topology map and the indoor map;
  • Each radio unit ID in the network topology map and the optical port number of the base station to which each radio unit is connected, the cell ID, the frame, frame, and slot information of the board where the cell is located are matched with the actual indoor map to determine each radio unit.
  • the coverage area wherein the coverage area is specific to the floor or the room number; the information is transmitted to the calculation module, and the wireless side data acquisition module also transmits the collected data of the plurality of mobile terminals to the calculation module, and the calculation module Deriving an ID number index of a plurality of radio frequency units covering the mobile terminal acquired by the wireless side data collection module
  • the radio frequency measurement module of the radio frequency unit is sequentially turned on one by one, and the position information of the user at different times is measured, and the user movement track is obtained.
  • the step S10 includes:
  • S103 Open the positioning measurement of all the radio units according to the measurement mode and the measurement period configured on the operation and maintenance center, and send the positioning measurement to the mobile terminal;
  • the measurement information of the mobile terminal is measured by a radio frequency measurement module of the radio frequency unit, where the measurement information of the mobile terminal includes: an uplink arrival time, a signal strength, a number of mobile terminal UEs, a mobile terminal ID, and a radio frequency unit ID.
  • the determining, by the image acquisition module, the coverage of each radio frequency unit is specifically:
  • the image acquisition module acquires a base station network topology map and an indoor map
  • the present embodiment provides an indoor positioning system with a large coverage area.
  • the system includes: a positioning server, a radio frequency unit pRRU, a baseband processing unit BBU, and a mobile terminal UE, where the positioning server includes: Wireless side data acquisition module, image acquisition module and calculation module;
  • the radio frequency unit is configured to measure measurement information of the mobile terminal after starting the indoor positioning function
  • the baseband processing unit is configured to receive measurement information of the mobile terminal and an ID number of the radio frequency unit, and send the measurement information of the mobile terminal and the ID number of the radio frequency unit to the wireless side data collection module;
  • the image acquisition module is configured to determine a coverage range of each radio frequency unit
  • the calculating module is configured to: according to the ID number of the radio frequency unit covering the mobile terminal acquired by the wireless side data collecting module, index the coverage of the radio frequency unit obtained by the image collecting module, and calculate the mobile terminal
  • the indoor location information of the mobile terminal is obtained from the distance from the center point of the coverage area.
  • the system further includes a network management system OMMB and a base station.
  • FIG. 1 a message flow chart of an indoor positioning system under a large coverage area is shown in FIG.
  • the calculating module is further configured to acquire, by using the wireless side data collection module, an ID number of a radio frequency unit that covers the mobile terminal;
  • the coverage of the radio frequency unit covering the mobile terminal in different measurement periods is sequentially acquired;
  • the radio frequency unit includes:
  • the startup module is configured to open the indoor positioning function switch and activate the indoor positioning function
  • An obtaining module configured to obtain IMSI information of the mobile terminal by using an authentication process
  • the first measurement module is configured to close the positioning measurement one by one for each radio frequency unit according to the measurement mode and the measurement period configured on the operation and maintenance center, and then gradually open the positioning measurement of each radio frequency unit;
  • the radio frequency measurement module is configured to measure measurement information of the mobile terminal by using a radio frequency measurement module of the radio frequency unit, where the measurement information of the mobile terminal includes: an uplink arrival time, a signal strength, a number of mobile terminals, a mobile terminal ID, and a radio frequency unit ID.
  • the radio frequency unit further includes:
  • the second measurement module is configured to open the positioning measurement of all the radio frequency units according to the measurement mode and the measurement period configured on the operation and maintenance center, and deliver the positioning measurement to the mobile terminal.
  • the image collection module includes:
  • An acquisition module configured to acquire a base station network topology map and an indoor map
  • a matching module configured to match each radio unit ID in the network topology diagram with the optical port number of the base station to which each radio unit is connected, the cell ID, the shelf, frame, slot information of the board where the cell is located, and the actual indoor map. Thereby determining the coverage of each radio unit, wherein the coverage is specific to the floor or room number.
  • the foregoing embodiment method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is better.
  • Implementation Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk,
  • the optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the methods described in various embodiments of the present invention.
  • the invention relates to the field of indoor positioning technology, and provides an indoor positioning method and system under a large coverage area, which solves the problem that a user cannot locate a floor or a room in an indoor distribution system with a large coverage area, and greatly improves LTE positioning.
  • the correctness, accuracy, and reliability of function use effectively provide network operators with a solution for positioning indoor distribution systems, reducing operating costs and improving user experience.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

提供一种大覆盖面积下的室内定位方法及系统，涉及室内定位技术领域。所述方法通过在多个射频单元覆盖的室内分布系统定位出移动终端所在的楼层或者房间等详细位置信息，解决了目前针对大覆盖面积的室内分布系统中用户无法定位到楼层或者房间的问题，极大地提升了LTE定位功能使用的正确性、准确性、可靠性，有效为网络运营商提供一种室内分布系统的定位的解决方案，降低运营成本，提高用户体验。

Description

一种大覆盖面积下的室内定位方法及系统 技术领域
本发明涉及室内定位技术领域，尤其涉及一种大覆盖面积下的室内定位方法及系统。
背景技术
在LTE(long term evolution，长期演进)移动通信系统中，LTE用户的位置可以通过基站和核心网之间信息的传递进行经纬度的确定。但是目前随着网络的迅速发展仅仅知道用户的经纬度已无法满足要求，尤其是在大覆盖面积下室内公众区域，例如机场、大型商场等区域，需要确定某一用户所在具体位置及移动路线时，以往的定位方式仅能定位到在哪个小区。但是对于整个室内就是一个小区的情况，就无法精确定位到具体的楼层甚至于具体的房间等信息。
由于用户在室内公众区域的详细信息无法获取，因此在实际应用时的某些情况下，例如紧急服务定位需要、警用侦听场景等，无法跟踪到该用户所在具体位置和移动路线。
发明内容
本发明的主要目的在于提出一种大覆盖面积下的室内定位方法及系统，旨在解决在大覆盖面积下室内公众区域无法定位用户的具体楼层或房间号等位置信息和移动轨迹的问题。
为实现上述目的，本发明提供的一种大覆盖面积下的室内定位方法，所述方法包括步骤：
启动室内定位功能，通过射频单元测量移动终端的测量信息；
将所述移动终端的测量信息及所述射频单元的ID号发送至无线侧数据采集模块；
通过图像采集模块确定每个射频单元的覆盖范围；
根据所述无线侧数据采集模块获取的覆盖所述移动终端的射频单元的ID号索引出图像采集模块得到的所述射频单元的覆盖范围，并计算出所述移动终端距离所述覆盖范围中心点的距离，获得移动终端的室内位置信息。
优选地，当所述移动终端的位置实时变化时，所述根据所述无线侧数据采集模块获取的覆盖所述移动终端的射频单元的ID号索引出图像采集模块得到的所述射频单元的覆盖范围，并计算出所述移动终端距离所述覆盖范围中心点的距离，获得移动终端的室内位置信息具体为：
通过所述无线侧数据采集模块获取覆盖所述移动终端的射频单元的ID号；
根据所述射频单元的ID号索引出图像采集模块得到的所述射频单元的覆盖范围；
对位置实时变化的移动终端，依次获取不同测量周期内覆盖所述移动终端的射频单元的覆盖范围；
并计算出每个测量周期的所述移动终端距离所述覆盖范围中心点的距离，获得每个测量周期下移动终端的室内位置信息，从而确定移动终端的移动轨迹。
优选地，所述启动室内定位功能，通过射频单元测量移动终端的测量信息具体为：
打开室内定位功能开关，启动室内定位功能；
通过鉴权过程获取移动终端的国际移动用户识别码信息；
根据操作维护中心上配置的测量方式和测量周期，对每个射频单元逐个关闭定位测量，再逐步打开每个射频单元的定位测量；
通过射频单元的射频测量模块测量移动终端的测量信息，所述移动终端的测量信息包括：上行到达时间、信号强度、移动终端数目、移动终端ID和射频单元ID。
优选地，所述启动室内定位功能，通过射频单元测量移动终端的测量信息具体为：
打开室内定位功能开关，启动室内定位功能；
通过鉴权过程获取移动终端的国际移动用户识别码信息；
根据操作维护中心上配置的测量方式和测量周期，打开全部射频单元的定位测量，下发定位测量给移动终端；
通过射频单元的射频测量模块测量移动终端的测量信息，所述移动终端的测量信息包括：上行到达时间、信号强度、移动终端数目、移动终端ID和射频单元ID。
优选地，所述通过图像采集模块确定每个射频单元的覆盖范围具体为：
图像采集模块获取基站网络拓扑图和室内地图；
将网络拓扑图中每个射频单元ID和每个射频单元连接的基站的光口号、小区ID、小区所在的单板的架、框、槽信息和实际的室内地图进行匹配，从而确定每个射频单元的覆盖范围，其中，所述覆盖范围具体到楼层或房间号。
此外，为实现上述目的，本发明还提出一种大覆盖面积下的室内定位系统，所述系统包括：定位服务器、射频单元、基带处理单元和移动终端，其中，所述定位服务器包括：无线侧数据采集模块、图像采集模块和计算模块；
所述射频单元，用于在启动室内定位功能后，测量移动终端的测量信息；
所述基带处理单元，用于接收所述移动终端的测量信息及射频单元的ID号，并将所述移动终端的测量信息及所述射频单元的ID号发送至无线侧数据采集模块；
所述图像采集模块，用于确定每个射频单元的覆盖范围；
所述计算模块，用于根据所述无线侧数据采集模块获取的覆盖所述移动终端的射频单元的ID号索引出图像采集模块得到的所述射频单元的覆盖范围，并计算出所述 移动终端距离所述覆盖范围中心点的距离，获得移动终端的室内位置信息。
优选地，当所述移动终端的位置实时变化时，所述计算模块，还用于通过所述无线侧数据采集模块获取覆盖所述移动终端的射频单元的ID号；
根据所述射频单元的ID号索引出图像采集模块得到的所述射频单元的覆盖范围；
对位置实时变化的移动终端，依次获取不同测量周期内覆盖所述移动终端的射频单元的覆盖范围；
并计算出每个测量周期所述移动终端距离所述覆盖范围中心点的距离，获得每个测量周期下移动终端的室内位置信息，从而确定移动终端的移动轨迹。
优选地，所述射频单元包括：
启动模块，用于打开室内定位功能开关，启动室内定位功能；
获取模块，用于通过鉴权过程获取移动终端的国际移动用户识别码信息；
第一测量模块，用于根据操作维护中心上配置的测量方式和测量周期，对每个射频单元逐个关闭定位测量，再逐步打开每个射频单元的定位测量；
射频测量模块，用于通过射频单元的射频测量模块测量移动终端的测量信息，所述移动终端的测量信息包括：上行到达时间、信号强度、移动终端数目、移动终端ID和射频单元ID。
优选地，所述射频单元还包括：
第二测量模块，用于根据操作维护中心上配置的测量方式和测量周期，打开全部射频单元的定位测量，下发定位测量给移动终端。
优选地，所述图像采集模块包括：
采集模块，用于获取基站网络拓扑图和室内地图；
匹配模块，用于将网络拓扑图中每个射频单元ID和每个射频单元连接的基站的光口号、小区ID、小区所在的单板的架、框、槽信息和实际的室内地图进行匹配，从而确定每个射频单元的覆盖范围，其中，所述覆盖范围具体到楼层或房间号。
本发明提出的一种大覆盖面积下的室内定位方法及系统，通过在多个射频单元覆盖的室内分布系统定位出移动终端所在楼层或者房间等详细位置信息，解决了目前针对大覆盖面积的室内分布系统中用户无法定位到楼层或者房间的问题，极大地提升了LTE定位功能使用的正确性、准确性、可靠性，有效为网络运营商提供一种室内分布系统的定位的解决方案，降低运营成本，提高用户体验。
附图说明
图1为实现本发明各个实施例的移动终端的无线通信系统示意图；
图2为本发明实施例一提供的一种大覆盖面积下的室内定位方法流程图；
图3为图2中步骤S40的具体方法流程图；
图4为图2中步骤S10的具体方法流程图；
图5为本发明实施例一提供的一种大覆盖面积下的室内定位示意图；
图6为本发明实施例一提供的另一种大覆盖面积下的室内定位示意图；
图7为本发明实施例一提供的另一种大覆盖面积下的室内定位示意图；
图8为本发明实施例一提供的另一种大覆盖面积下的室内定位示意图；
图9为本发明实施例一提供的另一种大覆盖面积下的室内定位示意图；
图10为本发明实施例二提供的一种大覆盖面积下的室内定位方法流程图；
图11为本发明实施例三提供的一种大覆盖面积下的室内定位系统结构图；
图12为本发明实施例三提供的一种大覆盖面积下的室内定位系统的消息流程图。
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
现在将参考附图描述实现本发明各个实施例的移动终端。在后续的描述中，使用用于表示元件的诸如“模块”、“部件”或“单元”的后缀仅为了有利于本发明的说明，其本身并没有特定的意义。因此，"模块"与"部件"可以混合地使用。
移动终端可以以各种形式来实施。例如，本发明中描述的终端可以包括诸如移动电话、智能电话、笔记本电脑、数字广播接收器、PDA(个人数字助理)、PAD(平板电脑)、PMP(便携式多媒体播放器)、导航装置等等的移动终端以及诸如数字TV、台式计算机等等的固定终端。下面，假设终端是移动终端。然而，本领域技术人员将理解的是，除了特别用于移动目的的元件之外，根据本发明的实施方式的构造也能够应用于固定类型的终端。
现在将参考图1描述其中根据本发明的移动终端能够操作的通信系统。
这样的通信系统可以使用不同的空中接口和/或物理层。例如，由通信系统使用的空中接口包括例如频分多址(FDMA)、时分多址(TDMA)、码分多址(CDMA)和通用移动通信系统(UMTS)(特别地，长期演进(LTE))、全球移动通信系统(GSM)等等。作为非限制性示例，下面的描述涉及CDMA通信系统，但是这样的教导同样适用于其它类型的系统。
参考图1，CDMA无线通信系统可以包括多个移动终端100、多个基站(BS)270、基站控制器(BSC)275和移动交换中心(MSC)280。MSC280被构造为与公共电话交换网络(PSTN)290形成接口。MSC280还被构造为与可以经由回程线路耦接到基站270的BSC275形成接口。回程线路可以根据若干己知的接口中的任一种来构造，所述接口包括例如E1/T1、ATM，IP、PPP、帧中继、HDSL、ADSL或xDSL。将理解的是，如图1中所示的系统可以包括多个BSC275。
每个BS270可以服务一个或多个分区(或区域)，由多向天线或指向特定方向的天线覆盖的每个分区放射状地远离BS270。或者，每个分区可以由用于分集接收的两个或更多天线覆盖。每个BS270可以被构造为支持多个频率分配，并且每个频率分配具有特定频谱(例如，1.25MHz,5MHz等等)。
分区与频率分配的交叉可以被称为CDMA信道。BS270也可以被称为基站收发器子系统(BTS)或者其它等效术语。在这样的情况下，术语"基站"可以用于笼统地表示单个BSC275和至少一个BS270。基站也可以被称为"蜂窝站"。或者，特定BS270的各分区可以被称为多个蜂窝站。
如图1中所示，广播发射器(BT)295将广播信号发送给在系统内操作的移动终端100。如图1中所示的广播接收模块被设置在移动终端100处以接收由BT295发送的广播信号。在图1中，示出了几个全球定位系统(GPS)卫星300。卫星300帮助定位多个移动终端100中的至少一个。
在图1中，描绘了多个卫星300，但是理解的是，可以利用任何数目的卫星获得有用的定位信息。如图1中所示的GPS模块通常被构造为与卫星300配合以获得想要的定位信息。替代GPS跟踪技术或者在GPS跟踪技术之外，可以使用可以跟踪移动终端的位置的其它技术。另外，至少一个GPS卫星300可以选择性地或者额外地处理卫星DMB传输。
作为无线通信系统的一个典型操作，BS270接收来自各种移动终端100的反向链路信号。移动终端100通常参与通话、消息收发和其它类型的通信。特定基站270接收的每个反向链路信号被在特定BS270内进行处理。获得的数据被转发给相关的BSC275。BSC提供通话资源分配和包括BS270之间的软切换过程的协调的移动管理功能。BSC275还将接收到的数据路由到MSC280，其提供用于与PSTN290形成接口的额外的路由服务。类似地，PSTN290与MSC280形成接口，MSC与BSC275形成接口，并且BSC275相应地控制BS270以将正向链路信号发送到移动终端100。
基于上述移动终端的通信系统，提出本发明方法各个实施例。
实施例一
如图2所示，本发明第一实施例提出一种大覆盖面积下的室内定位方法，所述方法包括步骤：
S10、启动室内定位功能，通过射频单元测量移动终端的测量信息；
S20、将所述移动终端的测量信息及所述射频单元的ID号发送至无线侧数据采集模块；
S30、通过图像采集模块确定每个射频单元的覆盖范围；
S40、根据所述无线侧数据采集模块获取的覆盖所述移动终端的射频单元的ID号索引出图像采集模块得到的所述射频单元的覆盖范围，并计算出所述移动终端距离 所述覆盖范围中心点的距离，获得移动终端的室内位置信息。
在本实施例中，通过在多个射频单元覆盖的室内分布系统定位出移动终端所在楼层或者房间等详细位置信息，解决了目前针对大覆盖面积的室内分布系统中用户无法定位到楼层或者房间的问题，极大地提升了LTE定位功能使用的正确性、准确性、可靠性，有效为网络运营商提供一种室内分布系统的定位的解决方案，降低运营成本，提高用户体验。
在本实施例中，所述射频单元(Pico Radio Remote Unit，简称pRRU)包括射频测量模块，用于测量移动终端UE的测量信息，所述测量信息包括上行到达时间TA、信号强度PS、移动终端UE数目、移动终端ID和射频单元ID，基带处理单元(BBU，Building Base band Unit)用于将所述移动终端的测量信息及所述射频单元的ID号发送至无线侧数据采集模块。
如图3所示，在本实施例中，当所述移动终端的位置实时变化时，所述步骤S40包括：
S41、通过所述无线侧数据采集模块获取覆盖所述移动终端的射频单元的ID号；
S42、根据所述射频单元的ID号索引出图像采集模块得到的所述射频单元的覆盖范围；
S43、对位置实时变化的移动终端，依次获取不同测量周期内覆盖所述移动终端的射频单元的覆盖范围；
S44、并计算出每个测量周期所述移动终端距离所述覆盖范围中心点的距离，获得每个测量周期下移动终端的室内位置信息，从而确定移动终端的移动轨迹。
如图4所示，在本实施例中，所述步骤S10包括：
S11、打开室内定位功能开关，启动室内定位功能；
S12、通过鉴权过程获取移动终端的国际移动用户识别码信息；
S13、根据操作维护中心(OMC，Operation and Maintenance Center)上配置的测量方式和测量周期，对每个射频单元逐个关闭定位测量，再逐步打开每个射频单元的定位测量；
S14、通过射频单元的射频测量模块测量移动终端的测量信息，所述移动终端的测量信息包括：上行到达时间、信号强度、移动终端数目、移动终端ID和射频单元ID。
在本实施例中，每次测量时对每个射频单元逐个关闭定位测量，再逐步打开每个射频单元的定位测量，这样每次只有一个射频单元下发测量信息，可以确保干扰最小条件下，测量数据的准确性得以提高；测量得到的信号强度可作为测量结果直接用于计算。
在本实施例中，所述步骤S30包括：
图像采集模块获取基站网络拓扑图和室内地图；
将网络拓扑图中每个射频单元ID和每个射频单元连接的基站的光口号、小区ID、小区所在的单板的架、框、槽信息和实际的室内地图进行匹配，从而确定每个射频单元的覆盖范围，其中，所述覆盖范围具体到楼层或房间号。
如图5所示，在本实施例中，当室内信号非交叠覆盖区域时，依次逐个打开每个射频单元的射频测量模块，针对单一移动终端，在一个测量周期内仅上报一个移动终端的测量信息；首先移动终端接入后，基站通过核心网获取移动终端的国际移动用户识别码(International Mobile Subscriber Identification Number，IMSI)信息；打开室内定位功能开关，根据OMC上配置测量方式包括但不限于：一次性测量或周期性测量，周期性测量同时需配置测量周期，基站在业务信道上测量信号的(Rx-Tx)时间差，对每个射频单元逐个关闭，再逐步打开每个射频单元的射频测量模块下发位置测量信息给移动终端；基站将所述移动终端的测量信息、IMSI信息及射频单元的ID号发送至无线侧数据采集模块；图像采集模块获取基站网络拓扑图和室内地图；将网络拓扑图中每个射频单元ID和每个射频单元连接的基站的光口号、小区ID、小区所在的单板的架、框、槽信息和实际的室内地图进行匹配，从而确定每个射频单元的覆盖范围，其中，所述覆盖范围具体到楼层或房间号；将此信息传递给计算模块，并且无线侧数据采集模块也将采集到的数据传给计算模块，计算模块再根据所述无线侧数据采集模块获取的覆盖所述移动终端的射频单元的ID号索引出图像采集模块得到的所述射频单元的覆盖范围，并计算出所述移动终端距离所述覆盖范围中心点的距离，获得移动终端实际的室内位置信息。
如图6所示，作为另一种实施例，当室内信号非交叠覆盖区域时，依次逐个打开每个射频单元的射频测量模块，针对多个移动终端，在一个测量周期内仅上报全部移动终端的测量信息；首先移动终端接入后，基站通过核心网获取移动终端的IMSI信息；打开室内定位功能开关，根据OMC上配置测量方式包括但不限于：一次性测量或周期性测量，周期性测量同时需配置测量周期，基站在业务信道上测量信号的(Rx-Tx)时间差，对每个射频单元逐个关闭，再逐步打开每个射频单元的射频测量模块下发位置测量信息给全部多个移动终端；基站将所述多个移动终端的测量信息、IMSI信息及射频单元的ID号发送至无线侧数据采集模块；图像采集模块获取基站网络拓扑图和室内地图；将网络拓扑图中每个射频单元ID和每个射频单元连接的基站的光口号、小区ID、小区所在的单板的架、框、槽信息和实际的室内地图进行匹配，从而确定每个射频单元的覆盖范围，其中，所述覆盖范围具体到楼层或房间号；将此信息传递给计算模块，并且无线侧数据采集模块也将采集到的多个移动终端的数据传给计算模块，计算模块再根据所述无线侧数据采集模块获取的覆盖所述移动终端的多个射频单元的ID号索引出图像采集模块得到的所述射频单元的覆盖范围，并计算出所述移动终端距离所述多个射频单元的覆盖范围中心点的距离，获得移动终端实际的室内位置信息。
如图7所示，作为另一种实施例，当室内信号交叠覆盖区域时，依次逐个打开每个射频单元的射频测量模块，针对单一移动终端，在一个测量周期内仅上报一个移动终端的测量信息；首先移动终端接入后，基站通过核心网获取移动终端的IMSI信息；打开室内定位功能开关，根据OMC上配置测量方式包括但不限于：一次性测量或周期性测量，周期性测量同时需配置测量周期，基站在业务信道上测量信号的(Rx-Tx)时间差，对每个射频单元逐个关闭，再逐步打开每个射频单元的射频测量模块下发位置测量信息给移动终端；基站将所述移动终端的测量信息、IMSI信息及射频单元的ID号发送至无线侧数据采集模块；图像采集模块获取基站网络拓扑图和室内地图；将网络拓扑图中每个射频单元ID和每个射频单元连接的基站的光口号、小区ID、小区所在的单板的架、框、槽信息和实际的室内地图进行匹配，从而确定每个射频单元的覆盖范围，其中，所述覆盖范围具体到楼层或房间号；将此信息传递给计算模块，并且无线侧数据采集模块也将采集到的数据传给计算模块，计算模块再根据所述无线侧数据采集模块获取的覆盖所述移动终端的射频单元的ID号索引出图像采集模块得到的所述射频单元的覆盖范围，并计算出所述移动终端距离所述覆盖范围中心点的距离，获得移动终端实际的室内位置信息。
如图8所示，作为另一种实施例，当室内信号交叠覆盖区域时，依次逐个打开每个射频单元的射频测量模块，针对多个移动终端，在一个测量周期内仅上报全部移动终端的测量信息；首先移动终端接入后，基站通过核心网获取移动终端的IMSI信息；打开室内定位功能开关，根据OMC上配置测量方式包括但不限于：一次性测量或周期性测量，周期性测量同时需配置测量周期，基站在业务信道上测量信号的(Rx-Tx)时间差，对每个射频单元逐个关闭，再逐步打开每个射频单元的射频测量模块下发位置测量信息给全部多个移动终端；基站将所述多个移动终端的测量信息、IMSI信息及射频单元的ID号发送至无线侧数据采集模块；图像采集模块获取基站网络拓扑图和室内地图；将网络拓扑图中每个射频单元ID和每个射频单元连接的基站的光口号、小区ID、小区所在的单板的架、框、槽信息和实际的室内地图进行匹配，从而确定每个射频单元的覆盖范围，其中，所述覆盖范围具体到楼层或房间号；将此信息传递给计算模块，并且无线侧数据采集模块也将采集到的多个移动终端的数据传给计算模块，计算模块再根据所述无线侧数据采集模块获取的覆盖所述移动终端的多个射频单元的ID号索引出图像采集模块得到的所述射频单元的覆盖范围，并计算出所述移动终端距离所述多个射频单元的覆盖范围中心点的距离，获得移动终端实际的室内位置信息。
作为另一种实施例，当室内信号交叠或非交叠覆盖区域时，打开全部射频单元的射频测量模块，针对一个或多个移动终端，在一个测量周期内仅上报一个或全部移动终端的测量信息；首先移动终端接入后，基站通过核心网获取移动终端的IMSI信息；打开室内定位功能开关，根据OMC上配置测量方式包括但不限于：一次性测量或周 期性测量，周期性测量同时需配置测量周期，基站在业务信道上测量信号的(Rx-Tx)时间差，对每个射频单元逐个关闭，再逐步打开每个射频单元的射频测量模块下发位置测量信息给全部多个移动终端；基站将所述多个移动终端的测量信息、IMSI信息及射频单元的ID号发送至无线侧数据采集模块；图像采集模块获取基站网络拓扑图和室内地图；将网络拓扑图中每个射频单元ID和每个射频单元连接的基站的光口号、小区ID、小区所在的单板的架、框、槽信息和实际的室内地图进行匹配，从而确定每个射频单元的覆盖范围，其中，所述覆盖范围具体到楼层或房间号；将此信息传递给计算模块，并且无线侧数据采集模块也将采集到的多个移动终端的数据传给计算模块，计算模块再根据所述无线侧数据采集模块获取的覆盖所述移动终端的多个射频单元的ID号索引出图像采集模块得到的所述射频单元的覆盖范围，并计算出所述每个移动终端距离所述多个射频单元的覆盖范围中心点的距离，获得移动终端实际的室内位置信息。
如图9所示，作为另一种实施例，当室内信号交叠或非交叠覆盖区域时，依次逐个打开射频单元的射频测量模块，测量在不同时间用户的位置信息，得出用户移动轨迹。
实施例二
如图10所示，在本实施例中，所述步骤S10包括：
S101、打开室内定位功能开关，启动室内定位功能；
S102、通过鉴权过程获取移动终端的IMSI信息；
S103、根据操作维护中心上配置的测量方式和测量周期，打开全部射频单元的定位测量，下发定位测量给移动终端；
S104、通过射频单元的射频测量模块测量移动终端的测量信息，所述移动终端的测量信息包括：上行到达时间、信号强度、移动终端UE数目、移动终端ID和射频单元ID。
在本实施例中，一次性打开全部射频单元的定位测量，然后根据现网的实测模型取用户在每个射频单元测量出信号强度的平均值Mall(作为强信号干扰时信号强度)，再和UE用实施例一中测量得出全部N个射频单元测量的信号强度的平均值Mpre＝(M1+M2+..+MN)/N(作为可忽略信号干扰时的信号强度)取得中间值M＝(Mall+Mpre)/2作为测量结果上报门限。当测量得到的信号强度大于M时，以测量得到的信号强度和M的差值作为测量结果用于计算。当测量得到的信号强度小于M时，认为是强干扰环境下测试，测量结果不准确，因此不用于位置计算。
在本实施例中，所述通过图像采集模块确定每个射频单元的覆盖范围具体为：
图像采集模块获取基站网络拓扑图和室内地图；
将网络拓扑图中每个射频单元ID和每个射频单元连接的基站的光口号、小区ID、 小区所在的单板的架、框、槽信息和实际的室内地图进行匹配，从而确定每个射频单元的覆盖范围，其中，所述覆盖范围具体到楼层或房间号。
实施例三
如图11所示，本实施例提出一种大覆盖面积下的室内定位系统，所述系统包括：定位服务器、射频单元pRRU、基带处理单元BBU和移动终端UE，其中，所述定位服务器包括：无线侧数据采集模块、图像采集模块和计算模块；
所述射频单元，用于在启动室内定位功能后，测量移动终端的测量信息；
所述基带处理单元，用于接收所述移动终端的测量信息及射频单元的ID号，并将所述移动终端的测量信息及所述射频单元的ID号发送至无线侧数据采集模块；
所述图像采集模块，用于确定每个射频单元的覆盖范围；
所述计算模块，用于根据所述无线侧数据采集模块获取的覆盖所述移动终端的射频单元的ID号索引出图像采集模块得到的所述射频单元的覆盖范围，并计算出所述移动终端距离所述覆盖范围中心点的距离，获得移动终端的室内位置信息。
在本实施例中，所述系统还包括网管系统OMMB和基站。
在本实施例中，一种大覆盖面积下的室内定位系统的消息流程图如图12所示。
在本实施例中，当所述移动终端的位置实时变化时，所述计算模块，还用于通过所述无线侧数据采集模块获取覆盖所述移动终端的射频单元的ID号；
根据所述射频单元的ID号索引出图像采集模块得到的所述射频单元的覆盖范围；
对位置实时变化的移动终端，依次获取不同测量周期内覆盖所述移动终端的射频单元的覆盖范围；
并计算出每个测量周期所述移动终端距离所述覆盖范围中心点的距离，获得每个测量周期下移动终端的室内位置信息，从而确定移动终端的移动轨迹。
在本实施例中，所述射频单元包括：
启动模块，用于打开室内定位功能开关，启动室内定位功能；
获取模块，用于通过鉴权过程获取移动终端的IMSI信息；
第一测量模块，用于根据操作维护中心上配置的测量方式和测量周期，对每个射频单元逐个关闭定位测量，再逐步打开每个射频单元的定位测量；
射频测量模块，用于通过射频单元的射频测量模块测量移动终端的测量信息，所述移动终端的测量信息包括：上行到达时间、信号强度、移动终端数目、移动终端ID和射频单元ID。
在本实施例中，所述射频单元还包括：
第二测量模块，用于根据操作维护中心上配置的测量方式和测量周期，打开全部射频单元的定位测量，下发定位测量给移动终端。
在本实施例中，所述图像采集模块包括：
采集模块，用于获取基站网络拓扑图和室内地图；
匹配模块，用于将网络拓扑图中每个射频单元ID和每个射频单元连接的基站的光口号、小区ID、小区所在的单板的架、框、槽信息和实际的室内地图进行匹配，从而确定每个射频单元的覆盖范围，其中，所述覆盖范围具体到楼层或房间号。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
上述本发明实施例序号仅仅为了描述，不代表实施例的优劣。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。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(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本发明各个实施例所述的方法。
工业实用性
本发明涉及室内定位技术领域，提供一种大覆盖面积下的室内定位方法及系统，解决了目前针对大覆盖面积的室内分布系统中用户无法定位到楼层或者房间的问题，极大地提升了LTE定位功能使用的正确性、准确性、可靠性，有效为网络运营商提供一种室内分布系统的定位的解决方案，降低运营成本，提高用户体验。
以上仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (10)

  1. 一种大覆盖面积下的室内定位方法，包括：
    启动室内定位功能，通过射频单元测量移动终端的测量信息；
    将所述移动终端的测量信息及所述射频单元的ID号发送至无线侧数据采集模块；
    通过图像采集模块确定每个射频单元的覆盖范围；
    根据所述无线侧数据采集模块获取的覆盖所述移动终端的射频单元的ID号索引出图像采集模块得到的所述射频单元的覆盖范围，并计算出所述移动终端距离所述覆盖范围中心点的距离，获得移动终端的室内位置信息。
  2. 根据权利要求1所述的一种大覆盖面积下的室内定位方法，其中，当所述移动终端的位置实时变化时，所述根据所述无线侧数据采集模块获取的覆盖所述移动终端的射频单元的ID号索引出图像采集模块得到的所述射频单元的覆盖范围，并计算出所述移动终端距离所述覆盖范围中心点的距离，获得移动终端的室内位置信息包括：
    通过所述无线侧数据采集模块获取覆盖所述移动终端的射频单元的ID号；
    根据所述射频单元的ID号索引出图像采集模块得到的所述射频单元的覆盖范围；
    对位置实时变化的移动终端，依次获取不同测量周期内覆盖所述移动终端的射频单元的覆盖范围；
    并计算出每个测量周期所述移动终端距离所述覆盖范围中心点的距离，获得每个测量周期下移动终端的室内位置信息，从而确定移动终端的移动轨迹。
  3. 根据权利要求1所述的一种大覆盖面积下的室内定位方法，其中，所述启动室内定位功能，通过射频单元测量移动终端的测量信息包括：
    打开室内定位功能开关，启动室内定位功能；
    通过鉴权过程获取移动终端的国际移动用户识别码信息；
    根据操作维护中心上配置的测量方式和测量周期，对每个射频单元逐个关闭定位测量，再逐步打开每个射频单元的定位测量；
    通过射频单元的射频测量模块测量移动终端的测量信息，所述移动终端的测量信息包括：上行到达时间、信号强度、移动终端数目、移动终端ID和射频单元ID。
  4. 根据权利要求1所述的一种大覆盖面积下的室内定位方法，其中，所述启动室内定位功能，通过射频单元测量移动终端的测量信息包括：
    打开室内定位功能开关，启动室内定位功能；
    通过鉴权过程获取移动终端的国际移动用户识别码信息；
    根据操作维护中心上配置的测量方式和测量周期，打开全部射频单元的定位测量，下发定位测量给移动终端；
    通过射频单元的射频测量模块测量移动终端的测量信息，所述移动终端的测量信息包括：上行到达时间、信号强度、移动终端数目、移动终端ID和射频单元ID。
  5. 根据权利要求3或4所述的一种大覆盖面积下的室内定位方法，其中，所述通过图像采集模块确定每个射频单元的覆盖范围包括：
    图像采集模块获取基站网络拓扑图和室内地图；
    将网络拓扑图中每个射频单元ID和每个射频单元连接的基站的光口号、小区ID、小区所在的单板的架、框、槽信息和实际的室内地图进行匹配，从而确定每个射频单元的覆盖范围，其中，所述覆盖范围具体到楼层或房间号。
  6. 一种大覆盖面积下的室内定位系统，包括：定位服务器、射频单元、基带处理单元和移动终端，其中，所述定位服务器包括：无线侧数据采集模块、图像采集模块和计算模块；
    所述射频单元，设置为在启动室内定位功能后，测量移动终端的测量信息；
    所述基带处理单元，设置为接收所述移动终端的测量信息及射频单元的ID号，并将所述移动终端的测量信息及所述射频单元的ID号发送至无线侧数据采集模块；
    所述图像采集模块，设置为确定每个射频单元的覆盖范围；
    所述计算模块，设置为根据所述无线侧数据采集模块获取的覆盖所述移动终端的射频单元的ID号索引出图像采集模块得到的所述射频单元的覆盖范围，并计算出所述移动终端距离所述覆盖范围中心点的距离，获得移动终端的室内位置信息。
  7. 根据权利要求6所述的一种大覆盖面积下的室内定位系统，其中，当所述移动终端的位置实时变化时，所述计算模块，还设置为：
    通过所述无线侧数据采集模块获取覆盖所述移动终端的射频单元的ID号；
    根据所述射频单元的ID号索引出图像采集模块得到的所述射频单元的覆盖范围；
    对位置实时变化的移动终端，依次获取不同测量周期内覆盖所述移动终端的射频单元的覆盖范围；
    并计算出每个测量周期所述移动终端距离所述覆盖范围中心点的距离，获得每个测量周期下移动终端的室内位置信息，从而确定移动终端的移动轨迹。
  8. 根据权利要求6所述的一种大覆盖面积下的室内定位系统，其中，所述射频单元包括：
    启动模块，设置为打开室内定位功能开关，启动室内定位功能；
    获取模块，设置为通过鉴权过程获取移动终端的国际移动用户识别码信息；
    第一测量模块，设置为根据操作维护中心上配置的测量方式和测量周期，对每个射频单元逐个关闭定位测量，再逐步打开每个射频单元的定位测量；
    射频测量模块，设置为通过射频单元的射频测量模块测量移动终端的测量信息，所述移动终端的测量信息包括：上行到达时间、信号强度、移动终端数目、移动终 端ID和射频单元ID。
  9. 根据权利要求6所述的一种大覆盖面积下的室内定位系统，其中，所述射频单元还包括：
    第二测量模块，设置为根据操作维护中心上配置的测量方式和测量周期，打开全部射频单元的定位测量，下发定位测量给移动终端。
  10. 根据权利要求8或9所述的一种大覆盖面积下的室内定位系统，其中，所述图像采集模块包括：
    采集模块，设置为获取基站网络拓扑图和室内地图；
    匹配模块，设置为将网络拓扑图中每个射频单元ID和每个射频单元连接的基站的光口号、小区ID、小区所在的单板的架、框、槽信息和实际的室内地图进行匹配，从而确定每个射频单元的覆盖范围，其中，所述覆盖范围具体到楼层或房间号。
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