CN102711240A - Indoor locating method, data acquisition method and data acquisition system - Google Patents

Abstract

The invention provides an indoor locating method, a data acquisition method and a data acquisition system. The indoor locating method comprises the following steps: obtaining a pseudo carrier; transmitting the pseudo carrier to a remote unit in a predetermined range in a polling manner and radiating the pseudo carrier in the room through the remote unit; obtaining response information fed back by a mobile station in the predetermined range, and locating the mobile station according to the condition that whether the pseudo carrier information is carried in the response information. According to the indoor locating method, the data acquisition method and the data acquisition system provided by the invention, the effective automatic indoor location is realized.

Description

Indoor positioning method, data collection method and system

technical field

The invention relates to the technical field of wireless communication, in particular to an indoor positioning method, a data collection method and a system.

Background technique

With the development of wireless communication technology, traffic density and coverage requirements continue to rise. Due to the excessive user density and the shielding effect of buildings on mobile phone signals, the traditional indoor distribution system is increasingly unable to accommodate the large-capacity requirements of multi-band, multi-mode, and multi-operator.

Multi-frequency and multi-mode digital optical fiber distribution system, as the evolution form of the new generation of indoor coverage system, has become one of the mainstream indoor coverage solutions. Compared with the traditional indoor distribution system, it has unique functions, such as: replace the same Axial cables, reduce signal attenuation, improve efficiency, and digitalization can facilitate upgrades and expansions. The multi-band, multi-mode and multi-operator indoor coverage system also brings many indoor network performance problems, such as weak coverage, pilot pollution, multi-system interference, and indoor characteristics such as uneven traffic, out-of-signal leakage, and users cannot stay indoors well. In order to find these problems in practical application and take corresponding measures to overcome the defects, it is necessary to collect data from the indoor coverage system.

Traditional indoor data collection needs to rely on network optimization engineers to use test terminals to collect on-site in the required test area, and combine data analysis tool software and test instruments, such as spectrum analyzers and power meters, to obtain the received signal code power of test terminals ( Received Signal Code Power, RSCP), signal to noise ratio (Signal to Noise Ratio, SNR) or the ratio of received signal strength to adjacent cell interference level (Ec/Io) and other information. This method of data collection based on on-site testing requires the use of a large number of software and hardware tools, which consumes a lot of manpower and takes a long time.

Contents of the invention

Embodiments of the present invention provide an indoor positioning method, a data collection method and a system for realizing effective automatic indoor positioning.

On the one hand, an embodiment of the present invention provides an indoor positioning method, including:

Get pseudo-carrier;

Sending the pseudo-carrier patrol to a remote unit within a preset range, so that the remote unit radiates the pseudo-carrier into the room;

Obtain the response message fed back by the mobile station within the preset range, and locate the mobile station according to whether the response message carries fake carrier information.

On the one hand, an embodiment of the present invention provides an indoor distribution system, including a main unit, a remote unit, and a carrier channel for the main unit to communicate with the remote unit, and the main unit is used to pass through the carrier channel Sending pseudo-carriers to the remote units within the preset range, obtaining response messages fed back by the mobile stations within the preset range, and positioning the mobile stations according to the response messages; the remote The unit is used to radiate the received pseudo-carrier into the room, wherein the main unit specifically includes:

A pseudo-carrier acquisition module, configured to acquire a pseudo-carrier;

A patrol module, configured to send the pseudo-carrier patrol to remote units within a preset range through a carrier channel, so that the remote unit can radiate the pseudo-carrier indoors;

The positioning module is configured to acquire a response message fed back by a mobile station within the preset range, and locate the mobile station according to whether the response message carries fake carrier information.

On the one hand, an embodiment of the present invention provides a data collection method, including:

Get pseudo-carrier;

Sending the pseudo-carrier patrol to a remote unit within a preset range, so that the remote unit radiates the pseudo-carrier into the room;

Obtaining a response message fed back by a mobile station within the preset range, locating the mobile station according to whether the response message carries fake carrier information, and collecting the location of the mobile station from the response message network performance data.

On the one hand, an embodiment of the present invention provides another indoor distribution system, which is characterized in that it includes a main unit, a remote unit, and a carrier channel for the main unit to communicate with the remote unit, and the main unit is used to Sending a pseudo-carrier to the remote units within a preset range through the carrier channel, acquiring a response message fed back by a mobile station within the preset range, and locating the mobile station according to the response message, And collect the network performance data of the location of the mobile station from the response message; the remote unit is used to radiate the received pseudo-carrier to the room, wherein the main unit specifically includes:

A pseudo-carrier acquisition module, configured to acquire a pseudo-carrier;

A patrol module, configured to send the pseudo-carrier patrol to remote units within a preset range through the carrier channel, so that the remote unit can radiate the pseudo-carrier indoors;

A collection module, configured to obtain a response message fed back by a mobile station within the preset range, locate the mobile station according to whether the response message carries fake carrier information, and collect the response message from the response message network performance data describing the location of the mobile station.

On the one hand, an embodiment of the present invention provides an indoor coverage system, including a base station, and any indoor distribution system provided by the embodiments of the present invention.

According to the indoor positioning method, data collection method and system provided by the embodiments of the present invention, since the pseudo-carriers are respectively transmitted through the remote units of the indoor distribution system according to the round-robin mode, that is, in each round-robin process, only this round-robin The MSs within the coverage of the remote unit of the remote unit can receive the false carrier, so that by detecting whether the response message returned by the link establishment MS of the indoor distribution system carries the false carrier information, it can be judged which remote unit each link establishment MS is located in. location, realizing convenient and effective indoor positioning. In addition, after the indoor positioning is realized through the above method, the data collection of the corresponding position in the indoor distribution system can be carried out through the positioned MS, without the need for technicians to visit the test area, thus providing a technical basis for fast and convenient data collection.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Figure 1 is a system architecture diagram of a typical indoor coverage system.

Fig. 2 is a system architecture diagram for implementing Example 1 of the indoor distribution system in the present invention.

FIG. 3 is a schematic flowchart of an indoor positioning method according to Embodiment 1 of the present invention.

FIG. 4 is a schematic diagram of obtaining a patrol routing table.

FIG. 5 is a system architecture diagram of Example 2 of the indoor positioning system.

FIG. 6 is a system architecture diagram of Example 3 of an indoor positioning system.

FIG. 7 is a schematic diagram of the hardware structure for implementing round-robin in the simulation system.

Fig. 8 is a schematic structural diagram of the first example of the master unit.

FIG. 9 is a schematic flowchart of a data collection method according to Embodiment 5 of the present invention.

FIG. 10 is a schematic flowchart of a data collection method according to Embodiment 6 of the present invention.

Fig. 11 is a schematic structural diagram of the second example of the main unit.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Embodiment one

Figure 1 is a system architecture diagram of a typical indoor coverage system. As shown in Figure 1, it includes a base station, an indoor distribution system, and a mobile station (Mobile Station, MS), where the base station includes, for example, a radio network controller (Radio Network Controller, RNC)/base station controller (Base Station Controller, BSC), and The baseband processing unit (Building Baseband Unit, BBU) and the remote radio unit (Remote Radio Unit, RRU), or the base transceiver station (Base TransceiverStation, BTS) replaces the baseband processing unit (BBU) and the radio remote unit, and the MS is, for example, cell phone. During the downlink communication, the base station sends downlink signals to the indoor distribution system, and the indoor distribution system sends the downlink signals to the MS; during the uplink communication, the MS sends uplink signals to the indoor distribution system, and the indoor distribution system sends the uplink signals to the MS. to the base station equipment.

The indoor positioning method in Embodiment 1 of the present invention will be described below from the perspective of an indoor distribution system.

Fig. 2 is a system architecture diagram for implementing Example 1 of the indoor distribution system in the present invention. As shown in FIG. 2 , the indoor distribution system includes a main unit 21 and a remote unit 22 , and also includes a carrier channel (not shown in the figure) for communication between the main unit 21 and the remote unit 22 .

FIG. 3 is a schematic flowchart of an indoor positioning method according to Embodiment 1 of the present invention. As shown in Figure 2, the indoor positioning method includes the following steps:

Step S301, obtaining a pseudo-carrier;

Step S302, sending the pseudo-carrier patrol to a remote unit within a preset range, so that the remote unit can radiate the pseudo-carrier indoors;

Step S303, acquiring a response message fed back by a mobile station within the preset range, and positioning the mobile station according to whether the response message carries fake carrier information.

Specifically, the RNC or BSC initiates a pseudo-carrier establishment instruction, and the BBU and RRU (or BTS, BBU and RRU are used as an example here) establish a pseudo-carrier according to the pseudo-carrier establishment instruction, wherein the pseudo-carrier does not carry a service signal, Only with Common Pilot Channel (CPICH) information. The BBU and the RRU send the established pseudo carrier to the main unit, and notify the main unit that the carrier is a pseudo carrier. The main unit polls the carrier and sends it to the remote units.

Among them, in the first round patrol process, after the main unit sends the false carrier to the remote unit of this round, obtains the response signal fed back by the MS, detects whether the response signal carries false carrier information, and records it in the call history Record (Call History Record, CHR). In the first patrol, the base station detects in the CHR the MS that returns the response signal carrying false carrier information, so as to obtain the MSs that have established a link in the area covered by the remote unit of this patrol, that is, it knows that the corresponding MS is located in In the area covered by the remote unit of this round. In this way, after completing the round-robin tour of all remote units, it is possible to determine the position of each remote unit where all the link-establishing MSs in the current room are located, so as to determine the location of each link-establishing MS according to the position of the remote unit. specific physical location.

Wherein, since the location of the remote unit is determined when the network is established, it can be known in any way. Specifically, for example, in the early stage of network planning, according to the floor plan of each floor of the building, the Cartesian coordinates (Cartesian coordinates) are used to establish the location database of each floor of the building. End unit identification (ID) to correspond to establish an associated data table. Table 1 is an example of an associated data table. As shown in Table 1, the associated data table includes the ID of the remote unit, the location coordinates of the remote unit, the floor information and the description of the location feature.

Table 1

Remote Unit ID floor Location Description of location features Remote Unit ID 5 coordinates For example: by the window, use a directional antenna Remote Unit ID 5 coordinates Remote Unit ID 4 coordinates Remote Unit ID 4 coordinates

According to the indoor positioning method of the above-mentioned embodiment, since each remote unit of the indoor distribution system transmits a false carrier according to the round-robin mode, that is, in each round-round process, only the remote units covered by the round-robin The MS can receive the pseudo-carrier, so by detecting whether the response message returned by the link-establishing MS of the indoor distribution system carries the pseudo-carrier information, it can determine which remote unit each link-establishing MS is located in, realizing a convenient and effective Indoor Positioning. In addition, after the indoor positioning is realized through the above method, the data collection of the corresponding position in the indoor distribution system can be carried out through the positioned MS, without the need for technicians to visit the test area, thus providing a technical basis for fast and convenient data collection.

Further, in the indoor positioning method of the above-mentioned embodiment, the establishment of the pseudo-carrier specifically includes:

Receive a pseudo-carrier establishment instruction;

In response to the pseudo-carrier establishment instruction, detect whether there is an idle carrier channel for establishing the pseudo-carrier, and if so, acquire the pseudo-carrier.

More specifically, after the BBU and RRU receive the pseudo-carrier establishment instruction, the BBU and RRU first self-check to see if there is any redundant carrier channel to establish a pseudo-carrier, and if so, the feedback is ready, and the main unit is notified at the same time to Make the main unit detect whether there is a redundant carrier channel to establish a pseudo carrier, if there is, the feedback is ready, and the main unit will notify the remote unit at the same time, so that the remote unit can detect whether there is a redundant carrier channel to establish a pseudo carrier , if present, the feedback is ready. When these devices are all ready, the false carrier can be established, and if any one of the detection results is negative, it returns that the false carrier cannot be established.

Wherein, in addition to establishing the pseudo-carrier by the BBU and RRU as described above, the main unit can also establish the pseudo-carrier, which can be realized by setting a pseudo-carrier generator in the main unit.

Embodiment two

On the basis of Embodiment 1, in this embodiment, the step of sending the pseudo-carrier patrol to the remote units within the preset range specifically includes:

According to the patrol routing table, the remote unit of the current patrol is determined, and the pseudo carrier is sent to the remote unit of the current patrol.

In this embodiment, taking the indoor distribution system further including an expansion unit as an example, the steps of obtaining the patrol routing table are described. Wherein, the expansion unit is arranged between the main unit and the remote unit, forming a structure in which the main unit is connected to one or more expansion units, and each expansion unit is connected to one or more remote units.

The steps for obtaining the patrol routing table include, for example:

Obtain the optical fiber interface of the main unit, and establish a first-level interface table including the optical fiber interface;

According to the first-level interface table, through each of the optical fiber interfaces in turn, send an inquiry message to the communication unit connected to the main unit through the optical fiber interface, and receive a confirmation message returned by the communication unit;

judging whether the communication unit is an extension unit or a remote unit according to the confirmation message, and forming a first-level routing table;

If the first-level routing table includes an expansion unit, then the second-level interface table is established by the expansion unit, and a second-level routing table is formed according to the second-level interface table, and this step is repeated until the formed routing table only includes the remote unit.

More specifically, after the indoor system is powered on, the main unit adopts a round-robin method for remote machines to establish a routing table, that is, the main unit first detects which optical ports are connected to optical fibers, and forms a first-level interface table. In the first-level interface table, a port connected with an optical fiber is represented by a logic 1, and a port not connected with an optical fiber is represented by a logical 0. Then the main unit sends inquiry messages sequentially according to the interface table connected to the optical fiber. After receiving the inquiry message, the expansion unit or the remote unit sends back confirmation information. The confirmation information of the expansion unit and the remote unit is different to distinguish the expansion unit The unit is still a remote unit, and the first-level routing table is completed. The main unit issues information to establish the second-level interface table of the expansion unit. Those connected to the optical fiber will send inquiry messages one by one. After receiving the inquiry message, the extension unit or remote unit will send back confirmation information to complete the second-level routing table. Level interface table information.

Figure 4 is a schematic diagram of obtaining the patrol routing table, as shown in Figure 4, for example, the main unit includes four output optical ports Port1-Port4, wherein the Port2 optical port is connected with an optical fiber for connecting with the expansion unit, and the expansion unit also It includes four output optical ports Port1'-Port4', and the four output optical ports Port1'-Port4' are respectively connected to a remote unit, and the remote unit transmits signals through an antenna interface (ANT).

Table 2 is an example of forming a first-level interface table. As shown in Table 2, since it is detected that the Port2 optical port is connected with an optical fiber for connecting with the expansion unit, the logical value corresponding to the Port2 optical port is identified in Table 1 as "1", and record the corresponding extension unit ID (ID), where the extension unit ID is the unique identity of the extension unit, and the logical value identifiers corresponding to the remaining ports are "0". Table 3 is an example of forming a secondary interface table. As shown in Table 3, since it is detected that the four optical ports Port1'-Port4' are connected with optical fibers for connecting to different remote units respectively, then in Table 2 The logical value corresponding to the Port1'-Port4' optical port is identified as "1", and the corresponding remote unit ID is recorded, wherein the remote unit ID is the unique identity of the remote unit. In Table 2 and Table 3, cascading port (CA) items can also be included, cascading port is used for cascading between devices of the same level, where CA is "0" means that there is no cascading connection with other devices of the same level , CA is "1" means cascading with other devices of the same level.

Table 2

Main unit ID logical value ID value Port1 0 Port2 1 Expansion unit ID Port3 0 Port4 0 CA 0

table 3

Expansion unit ID logical value ID value Port1' 1 Remote Unit ID Port2' 1 Remote Unit ID Port3' 1 Remote Unit ID Port4' 1 Remote Unit ID CA 1

Embodiment three

On the basis of any of the above embodiments, the sending the pseudo-carrier patrol to the remote units within the preset range specifically includes:

Sending the pseudo-carrier to the remote units within the preset range in rounds in the form of digital signals and/or analog signals;

Correspondingly, the polling transmission is realized by controlling the logic switch array and/or controlling the single-pole multi-throw switch.

Specifically, the indoor positioning system used to implement the indoor positioning method in any of the foregoing embodiments may be a digital system, an analog system, or a system combining digital and analog. The signal processing methods in the indoor positioning system will be described in detail below for these three situations respectively.

Scenario 1: The indoor positioning system is a fully digital distribution system

FIG. 5 is a system architecture diagram of Example 2 of the indoor positioning system. As shown in Figure 5, the main unit can realize multi-band multi-operator radio frequency (Radio Frequency, RF) signal access, such as Code Division Multiple Access (Code Division Multiple Access, CDMA), Global System of Mobile Communications (Global System of Mobile communication, GSM), Distributed Control System (Distributed Control System, DCS), Personal Communications Service (Personal Communications Service, PCS), Universal Mobile Telecommunications System (Universal Mobile Telecommunications System, UMTS), Long Term Evolution (LTE), Wireless local area network (Wireless Local Area Networks, WLAN) and other different production tests and RF signals of different operators.

For the downlink, the same frequency band signals of multiple operators can be combined and input to the main unit, and the main unit performs down-conversion and analog-to-digital conversion on the signals to form digital channels of multiple carriers in the main unit. In the same way, other frequency bands can also use two combined methods to form digital channels of multiple carriers in the digital domain. Digital channels can vary according to the actual bandwidth of the carrier. All digital carrier channels can be output to one or more main unit output ports through a logic switch matrix. Digital signals can be transmitted to extension units or remote units according to certain protocols, such as Common Public Radio Interface (CPRI) or Open Base Station Architecture Initiative (OBSAI). The main unit can be realized without cascading or cascading another main unit.

The expansion unit can realize access to more remote units. The digital signal input from the main unit is unpacked in the expansion unit to restore the carrier channel. The expansion unit can support multiple carrier channels, and multiple carrier channels can be transmitted through a logic The switch array realizes the carrier output to the cascade interface and the interface to the remote unit, and the digital signal can be transmitted to the remote unit according to a certain protocol, such as CPRI or OBSAI.

The remote unit up-converts digital signals of multiple operators to RF signals, and radiates indoors from the antenna port. Wherein, the remote unit can be connected to a single antenna or multiple antennas.

For the uplink, the MS signals of the same frequency band or different frequency bands of multiple operators are coupled into the receiving channel of the remote unit through the antenna, and the signals are down-converted and analog-to-digital converted to form digital channels of multiple carriers in the remote unit. The digital signal can be transmitted to the expansion unit or the main unit according to certain protocols, such as CPRI or OBSAI. The receiving channel of the remote unit can realize functions such as receiving field strength detection and spectrum scanning.

The same carrier of multiple remote units is superimposed in the expansion unit or the main unit, and the same carrier signal of the uplink signals of multiple expansion units is superimposed in the main unit. In the main unit, through digital up-conversion and digital-to-analog conversion , analog up-conversion, amplified and coupled to the base station through a coupler.

Scenario 2: The indoor positioning system is a digital + analog distribution system

FIG. 6 is a system architecture diagram of Example 3 of an indoor positioning system. As shown in Figure 6, digital processing is used between the main unit and the extension unit, while pure analog processing is used between the extension unit and the remote unit.

The main unit can realize RF signal access of multi-band and multi-operator, such as CDMA, GSM, DCS, PCS, UMTS, LTE, WLAN and other different manufacturing and testing and RF signal access of different operators.

For the downlink, the same frequency band signals of multiple operators can be combined and input to the main unit, and the main unit performs down-conversion and analog-to-digital conversion on the signals to form digital channels of multiple carriers in the main unit. In the same way, other frequency bands can also use two combined methods to form multiple digital channels of carrier waves in the digital domain. Digital channels can vary according to the actual bandwidth of the carrier. All digital carrier channels can be output to one or more main unit output ports through a logic switch matrix. The digital signal can be transmitted to the expansion unit according to a certain protocol, such as CPRI or OBSAI. The main unit can be realized without cascading or cascading another main unit.

The expansion unit can realize access to more remote units. The digital signal input from the main unit is unpacked in the expansion unit to recover the carrier channel, distinguish the carrier channels of each frequency band, and combine the carriers of each single frequency band. channels, digital up-conversion, digital-to-analog conversion, analog up-conversion, recovering radio frequency signals, and combining the radio frequency signals of each frequency band and then splitting them. to the light wave and output from the output port. Expansion units can realize multiple cascading.

The remote unit applies radio-over-ber (ROF) technology to demodulate the radio frequency signals modulated on the light by multiple operators, recover the radio frequency signals, amplify them through broadband, and transmit them from the antenna port radiate into the room.

For the uplink, the MS signals of the same frequency band or different frequency bands of multiple operators are coupled into the receiving channel of the remote unit through the antenna, and after the signal is amplified in broadband, it is modulated on the light and output to the extension unit. The receiving channel of the remote unit can realize functions such as receiving field strength detection and spectrum scanning.

The uplink information of multiple remote units connected to the same extension unit is optically demodulated in the extension unit to restore the radio frequency signal, and perform uplink combination. The uplink filter separates the signals of each frequency band and performs analog down-conversion. After digital conversion, carry out digital down-conversion, separate the carrier channel, pack it according to CPRI or OBSAI and other protocols, and send it back to the main unit. The same carrier signal of the uplink signals of multiple expansion units is superimposed in the main unit. In the main unit, through digital up-conversion, digital-to-analog conversion, and analog up-conversion, it is amplified and coupled to the base station through a coupler.

Scenario 3: The indoor positioning system is a fully simulated distribution system

Both the main unit and the extension unit, and between the extension unit and the remote unit use analog processing, and the specific processing is similar to the analog processing in the above-mentioned case 2, so it will not be repeated here.

FIG. 7 is a schematic diagram of the hardware structure for implementing round-robin in the simulation system. As shown in Figure 7, the patrol transmission is realized based on a single-pole multi-throw switch. Among them, the static contact of the single-pole multi-throw switch is connected to the pseudo-carrier established by the pseudo-carrier generator, and the multiple moving contacts are respectively connected to the electro-optical conversion (E/O) equipment at the sending end of each tour. contact, and use a coupler or combiner to feed the pseudo-carrier signal into the radio frequency signal, and then perform electro-optical conversion by the corresponding E/O equipment, so that the patrol transmission can be realized. Wherein, the pseudo-carrier generator is set in the RRU, the main unit or the extension unit, for example. The hardware structure shown in FIG. 7 is provided in the main unit and/or the expansion unit.

Embodiment Four

This embodiment provides an indoor distribution system. The indoor distribution system includes a main unit, a remote unit, and a carrier channel for the main unit to communicate with the remote unit. The main unit is used to pass through the carrier channel Sending pseudo-carriers to the remote units within the preset range, obtaining response messages fed back by the mobile stations within the preset range, and positioning the mobile stations according to the response messages; the remote The unit is used to radiate the received pseudo-carrier into the room. Fig. 8 is a schematic structural diagram of the first example of the main unit. As shown in Figure 8, the main unit specifically includes:

Pseudo-carrier acquisition module 81, used to obtain a pseudo-carrier;

The polling module 82 is configured to send the pseudo-carrier patrol to remote units within a preset range through the carrier channel, so that the pseudo-carrier is radiated indoors by the remote unit;

The positioning module 83 is configured to obtain a response message fed back by a mobile station within the preset range, and locate the mobile station according to whether the response message carries fake carrier information.

The specific process of performing indoor positioning by the indoor distribution system of this embodiment is the same as that of the indoor positioning method in the preceding embodiment, so details are not repeated here.

According to the indoor distribution system of this embodiment, due to the polling mode, each remote unit of the indoor distribution system transmits the pseudo-carrier respectively, that is, in each polling process, only the remote units within the coverage of this polling The MS can receive the pseudo-carrier, so by detecting whether the response message returned by the link-establishing MS of the indoor distribution system carries the pseudo-carrier information, it can determine which remote unit each link-establishing MS is located in, realizing a convenient and effective Indoor Positioning. In addition, after the indoor positioning is realized through the above method, the data collection of the corresponding position in the indoor distribution system can be carried out through the positioned MS, without the need for technicians to visit the test area, thus providing a technical basis for fast and convenient data collection.

Further, the pseudo-carrier acquisition module includes:

The first submodule is used to receive a pseudo-carrier establishment instruction;

The second submodule is configured to respond to the pseudo-carrier establishment instruction, detect whether there is an idle carrier channel for establishing the pseudo-carrier, and notify the remote unit to detect whether there is an idle carrier for establishing the pseudo-carrier Channel, if both are yes, then feed back a prompt message for prompting the establishment of a pseudo carrier;

The third submodule is configured to receive from the base station the pseudo carrier established by the base station in response to the prompt message; or to establish the pseudo carrier in response to the prompt message.

Further, the patrol module includes:

The fourth sub-module is used to determine the remote unit of the current patrol according to the patrol routing table, and send the pseudo carrier to the remote unit of the current patrol;

Correspondingly, the positioning module includes:

The fifth submodule is configured to obtain a response message fed back by a mobile station within the preset range, and judge whether the mobile station is located in the current round according to whether the response message carries fake carrier information. Within the coverage of the remote unit, if so, then locate the mobile station according to the position of the remote unit of the current patrol;

The sixth sub-module is used to detect whether there is a remote unit that has not been patrolled in the patrol routing table, if yes, perform the next patrol transmission, if not, complete the indoor positioning this time.

Further, it also includes an expansion unit connected between the main unit and the remote unit, and correspondingly, the patrol module also includes:

The seventh sub-module is used to obtain the optical fiber interface of the main unit, and establish a first-level interface table including the optical fiber interface; The communication unit connected to the main unit sends an inquiry message, and receives a confirmation message returned by the communication unit; judges whether the communication unit is an extension unit or a remote unit according to the confirmation message, and forms a first-level routing table; if the one If the first-level routing table includes an expansion unit, then the second-level interface table is established by the expansion unit, and a second-level routing table is formed according to the second-level interface table, and this step is repeated until the communication units included in the formed routing table are all for the remote unit.

Further, the patrol sending of the pseudo-carrier to the remote units within the preset range is specifically in the form of digital signals and/or analog signals; correspondingly, the patrol module includes a control logic switch array and/or SPMT switches.

Embodiment five

FIG. 9 is a schematic flowchart of a data collection method according to Embodiment 5 of the present invention. As shown in Figure 9, the data collection method includes:

Step S901, acquiring a pseudo-carrier;

Step S902, sending the pseudo-carrier patrol to a remote unit within a preset range, so that the remote unit can radiate the pseudo-carrier indoors;

Step S903, obtain the response message fed back by the mobile station within the preset range, locate the mobile station according to whether the response message carries fake carrier information, and collect the mobile station from the response message. Network performance data for the station's location.

Wherein, the data collection method of this embodiment locates the mobile station based on the indoor positioning method of the foregoing embodiments, so as to collect relevant data of the mobile station as the network performance data of the location of the mobile station. The specific process will not be repeated here.

According to the data acquisition method of the present embodiment, due to the polling mode, each remote unit of the indoor distribution system transmits the pseudo-carrier respectively, that is, in each polling process, only the remote units within the coverage of this polling The MS can receive the pseudo-carrier, so by detecting whether the response message returned by the link-establishing MS of the indoor distribution system carries the pseudo-carrier information, it can judge which remote unit each link-establishing MS is located in, and realize the indoor positioning of the MS. , and use the positioned MS to collect data at the corresponding location in the indoor distribution system, without the need for technicians to visit the test area, thus realizing fast, convenient and resource-saving data collection.

Embodiment six

FIG. 10 is a schematic flowchart of a data collection method according to Embodiment 6 of the present invention. As shown in Figure 10, the data acquisition method of the present embodiment includes the following steps:

Step S1, the RNC (or BSC) initiates a pseudo-carrier establishment instruction;

Step S2, detecting whether the BBU and the RRU have an idle carrier channel; if not, return that data collection cannot be performed, and if so, execute step S3;

Step S3, detecting whether the carrier channel of the main unit, the carrier channel of the extension unit and the carrier channel of the remote unit are ready (READY), if yes, perform step S4, and if not, return to unable to perform data collection;

Specifically, the base station first self-checks to see if there are redundant carrier channels to establish a pseudo carrier, and if so, the feedback is ready. Ready, at the same time notify the remote unit whether there are redundant carrier channels to establish a pseudo carrier, if so, the feedback is ready, when the above four devices (if there is no expansion unit, three devices) are ready, you can establish Pseudo-carriers, any of which are false, return data acquisition cannot be performed.

Step S4, establishing a pseudo-carrier;

Step S5, importing the indoor distribution position data of the remote units;

Specifically, a location database distributed indoors of remote units is imported, for example, the location database in the first embodiment above.

Step S6, establishing a patrol routing table;

Specifically, the specific process of establishing the patrol routing table is the same as that in the second embodiment above, so it will not be repeated here.

Step S7, start patrolling;

Step S8, according to the established patrol routing table, determine a certain remote unit;

Step S9, data collection, collect RSCP of MS, SNR or Ec/Io of MS, pilot signal and strength of neighboring cell, traffic data of link establishment (data service can be converted according to rate) and received signal strength indication of remote unit (Received Signal Strength Indication, RSSI) or wideband received total power (Received Total Wideband Power, RTWP) and spectrum data of the remote unit, etc.

Specifically, after the remote unit determined in step S8 transmits the false carrier, it collects data, obtains the uplink signal sent by the MS, and judges whether the MS is in the The physical location of the mobile station can be determined within the coverage of the first remote unit, in combination with a pre-established location database. Therefore, the collected performance data related to the MS can be used as the network performance data of the corresponding indoor location;

Step S10, storing data in a prescribed format;

Step S11, judge whether the remote unit of this round is the last one, if not, return to step S8; if yes, the data collection ends, and wait for the next data collection to start according to the time period set by the software.

Embodiment seven

This embodiment provides an indoor distribution system. The indoor distribution system includes a main unit, a remote unit, and a carrier channel for the main unit to communicate with the remote unit. The main unit is used to pass through the carrier channel Sending pseudo-carriers to the remote units within the preset range, obtaining response messages fed back by the mobile stations within the preset range, positioning the mobile stations according to the response messages, and The network performance data of the location of the mobile station is collected in the message; the remote unit is used to radiate the received pseudo-carrier into the room. Fig. 11 is a schematic structural diagram of the second example of the main unit. As shown in Figure 8, the main unit specifically includes:

A pseudo-carrier acquisition module 111, configured to acquire a pseudo-carrier;

Patrol module 112, configured to send the pseudo-carrier patrol to remote units within a preset range through the carrier channel, so that the remote unit can radiate the pseudo-carrier indoors;

The collection module 113 is configured to obtain a response message fed back by a mobile station within the preset range, locate the mobile station according to whether the response message carries pseudo-carrier information, and collect information from the response message Network performance data for the location of the mobile station.

The specific flow of data collection performed by the indoor distribution system in this embodiment is the same as the data collection method in the foregoing sixth embodiment, so it will not be repeated here.

According to the indoor distribution system of this embodiment, due to the polling mode, each remote unit of the indoor distribution system transmits the pseudo-carrier respectively, that is, in each polling process, only the remote units within the coverage of this polling The MS can receive the pseudo-carrier, so by detecting whether the response message returned by the link-establishing MS of the indoor distribution system carries the pseudo-carrier information, it can determine which remote unit each link-establishing MS is located in, realizing a convenient and effective Indoor Positioning. In addition, after the indoor positioning is realized through the above method, the data collection of the corresponding position in the indoor distribution system can be carried out through the positioned MS, without the need for technicians to visit the test area, thus providing a technical basis for fast and convenient data collection.

Further, the pseudo-carrier acquisition module includes:

The first submodule is used to receive a pseudo-carrier establishment instruction;

The second submodule is configured to respond to the pseudo-carrier establishment instruction, detect whether there is an idle carrier channel for establishing the pseudo-carrier, and notify the remote unit to detect whether there is an idle carrier for establishing the pseudo-carrier Channel, if both are yes, then feed back a prompt message for prompting the establishment of a pseudo carrier;

The third submodule is configured to receive from the base station the pseudo carrier established by the base station in response to the prompt message; or to establish the pseudo carrier in response to the prompt message.

Further, the patrol module includes:

The fourth sub-module is used to determine the remote unit of the current patrol according to the patrol routing table, and send the pseudo carrier to the remote unit of the current patrol;

Correspondingly, the collection module includes:

The fifth submodule is configured to obtain a response message fed back by a mobile station within the preset range, and judge whether the mobile station is located in the current round according to whether the response message carries fake carrier information. Within the coverage of the remote unit, if so, then locate the mobile station according to the position of the remote unit of the current round, and collect the network performance of the position of the mobile station from the response message data;

The sixth sub-module is used to detect whether there are remote units that have not been patrolled in the patrol routing table, if yes, perform the next patrol transmission, and if not, complete this data collection.

Further, it also includes an expansion unit connected between the main unit and the remote unit, and correspondingly, the patrol module also includes:

The seventh sub-module is used to obtain the optical fiber interface of the main unit, and establish a first-level interface table including the optical fiber interface; The communication unit connected to the main unit sends an inquiry message, and receives a confirmation message returned by the communication unit; judges whether the communication unit is an extension unit or a remote unit according to the confirmation message, and forms a first-level routing table; if the one If the first-level routing table includes an expansion unit, then the second-level interface table is established by the expansion unit, and a second-level routing table is formed according to the second-level interface table, and this step is repeated until the communication units included in the formed routing table are all for the remote unit.

Further, the patrol sending of the pseudo-carrier to the remote units within the preset range is specifically in the form of digital signals and/or analog signals; correspondingly, the patrol module includes a control logic switch array and/or SPMT switches.

Embodiment Eight

This embodiment provides an indoor coverage system, and the indoor coverage system includes a base station and the indoor distribution system of any one of the foregoing embodiments.

Wherein, the base station includes, for example, RNC/BSC, and BBU and RRU, or the BTS replaces the BBU and RRU.

According to the indoor coverage system of this embodiment, due to the polling mode, each remote unit of the indoor distribution system transmits the pseudo-carrier respectively, that is, in each polling process, only the remote units within the coverage of this polling The MS can receive the pseudo-carrier, so by detecting whether the response message returned by the link-establishing MS of the indoor distribution system carries the pseudo-carrier information, it can determine which remote unit each link-establishing MS is located in, realizing a convenient and effective Indoor Positioning. In addition, after the indoor positioning is realized through the above method, the data collection of the corresponding position in the indoor distribution system can be carried out through the positioned MS, without the need for technicians to visit the test area, thus providing a technical basis for fast and convenient data collection.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.

Claims (21)

1. An indoor positioning method, characterized in that, comprising: Get pseudo-carrier; Sending the pseudo-carrier patrol to a remote unit within a preset range, so that the remote unit radiates the pseudo-carrier into the room; Obtain the response message fed back by the mobile station within the preset range, and locate the mobile station according to whether the response message carries fake carrier information. 2. The indoor positioning method according to claim 1, wherein said obtaining a pseudo-carrier specifically comprises: Receive a pseudo-carrier establishment instruction; In response to the pseudo-carrier establishment instruction, detect whether there is an idle carrier channel for establishing the pseudo-carrier, and if so, acquire the pseudo-carrier. 3. The indoor positioning method according to claim 1, wherein the sending the pseudo-carrier patrol to remote units within a preset range specifically comprises: According to the patrol routing table, determine the remote unit of this patrol, and send the pseudo carrier to the remote unit of this patrol; Correspondingly, the acquiring the response message fed back by the mobile station within the preset range, and positioning the mobile station according to whether the response message carries false carrier information specifically includes: Obtaining a response message fed back by the mobile station within the preset range, and judging whether the mobile station is located within the coverage area of the remote unit of the current round according to whether the response message carries false carrier information , if so, then locate the mobile station according to the position of the remote unit of the current round; Detect whether there is a remote unit that has not been patrolled in the patrol routing table, if yes, execute the next patrol transmission, if not, complete the indoor positioning this time. 4. The indoor positioning method according to claim 3, further comprising obtaining the patrol routing table, specifically comprising: Obtain the optical fiber interface of the main unit, and establish a first-level interface table including the optical fiber interface; According to the first-level interface table, sequentially send inquiry messages to the communication unit connected to the main unit through the optical fiber interface through each of the optical fiber interfaces, and receive the confirmation message returned by the communication unit; judging whether the communication unit is an extension unit or a remote unit according to the confirmation message, and forming a first-level routing table; If the first-level routing table includes an expansion unit, then the second-level interface table is established by the expansion unit, and a second-level routing table is formed according to the second-level interface table, and this step is repeated until the formed routing table only includes the remote unit. 5. The indoor positioning method according to any one of claims 1-4, characterized in that the sending of the pseudo-carrier patrol to the remote unit within the preset range is specifically in the form of a digital signal and/or an analog signal Form patrol sending; Correspondingly, the polling sending is realized by controlling a logic switch array or controlling a single-pole multi-throw switch. 6. An indoor distribution system, characterized in that it includes a main unit, a remote unit, and a carrier channel used for the communication between the main unit and the remote unit, and the main unit is used to communicate with the remote unit through the carrier channel. It is assumed that the remote units within the preset range send pseudo-carriers in rounds, obtain response messages fed back by mobile stations within the preset range, and locate the mobile stations according to the response messages; the remote units use For radiating the received pseudo-carrier into the room, wherein the main unit specifically includes: A pseudo-carrier acquisition module, configured to acquire the pseudo-carrier; A polling module, configured to send the pseudo-carrier patrol to the remote unit within a preset range through the carrier channel, so that the remote unit can radiate the pseudo-carrier indoors; The positioning module is configured to acquire a response message fed back by a mobile station within the preset range, and locate the mobile station according to whether the response message carries fake carrier information. 7. indoor distribution system according to claim 6, is characterized in that, described false carrier acquisition module comprises: The first submodule is used to receive a pseudo-carrier establishment instruction; The second submodule is configured to respond to the pseudo-carrier establishment instruction, detect whether there is an idle carrier channel for establishing the pseudo-carrier, and notify the remote unit to detect whether there is an idle carrier for establishing the pseudo-carrier Channel, if both are yes, then feed back a prompt message for prompting the establishment of a pseudo carrier; The third submodule is configured to receive from the base station the pseudo carrier established by the base station in response to the prompt message; or to establish the pseudo carrier in response to the prompt message. 8. The indoor distribution system according to claim 7, wherein the patrolling module comprises: The fourth sub-module is used to determine the remote unit of the current patrol according to the patrol routing table, and send the pseudo carrier to the remote unit of the current patrol; Correspondingly, the positioning module includes: The fifth submodule is configured to obtain a response message fed back by a mobile station within the preset range, and judge whether the mobile station is located in the current round according to whether the response message carries fake carrier information. Within the coverage of the remote unit, if so, then locate the mobile station according to the position of the remote unit of the current patrol; The sixth sub-module is used to detect whether there is a remote unit that has not been patrolled in the patrol routing table, if yes, perform the next patrol transmission, if not, complete the indoor positioning this time. 9. The indoor distribution system according to claim 8, further comprising an extension unit connected between the main unit and the remote unit, correspondingly, the patrolling module further comprising: The seventh sub-module is used to obtain the optical fiber interface of the main unit, and establish a first-level interface table including the optical fiber interface; The communication unit connected to the main unit sends an inquiry message, and receives a confirmation message returned by the communication unit; judges whether the communication unit is an extension unit or a remote unit according to the confirmation message, and forms a first-level routing table; if the one If the first-level routing table includes an expansion unit, then the second-level interface table is established by the expansion unit, and a second-level routing table is formed according to the second-level interface table, and this step is repeated until the communication units included in the formed routing table are all for the remote unit. 10. The indoor distribution system according to any one of claims 6-9, wherein the sending of the pseudo-carrier patrol to remote units within a preset range is specifically in the form of digital signals and/or analog The signal is sent in the form of patrol; correspondingly, the patrol module includes a control logic switch array or a single-pole multi-throw switch. 11. A data collection method, characterized in that, comprising: Get pseudo-carrier; Sending the pseudo-carrier patrol to a remote unit within a preset range, so that the remote unit radiates the pseudo-carrier into the room; Obtaining a response message fed back by a mobile station within the preset range, locating the mobile station according to whether the response message carries fake carrier information, and collecting the location of the mobile station from the response message network performance data. 12. The data collection method according to claim 11, wherein said obtaining a pseudo-carrier specifically comprises: Receive a pseudo-carrier establishment instruction; In response to the pseudo-carrier establishment instruction, detect whether there is an idle carrier channel for establishing the pseudo-carrier, and if so, acquire the pseudo-carrier. 13. The data acquisition method according to claim 11, wherein the sending the pseudo-carrier patrol to the remote unit in the preset range specifically comprises: According to the patrol routing table, determine the remote unit of this patrol, and send the pseudo carrier to the remote unit of this patrol; Correspondingly, the acquiring the response message fed back by the mobile station within the preset range, and positioning the mobile station according to whether the response message carries false carrier information specifically includes: Obtaining a response message fed back by the mobile station within the preset range, and judging whether the mobile station is located within the coverage area of the remote unit of the current round according to whether the response message carries false carrier information , if so, then locate the mobile station according to the position of the remote unit of the current round; Detect whether there is a remote unit that has not been patrolled in the patrol routing table, if yes, execute the next patrol transmission, if not, complete the indoor positioning this time. 14. The data collection method according to claim 13, further comprising obtaining the patrol routing table, specifically comprising: Obtain the optical fiber interface of the main unit, and establish a first-level interface table including the optical fiber interface; According to the first-level interface table, sequentially send inquiry messages to the communication unit connected to the main unit through the optical fiber interface through each of the optical fiber interfaces, and receive the confirmation message returned by the communication unit; judging whether the communication unit is an extension unit or a remote unit according to the confirmation message, and forming a first-level routing table; If the first-level routing table includes an expansion unit, then the second-level interface table is established by the expansion unit, and a second-level routing table is formed according to the second-level interface table, and this step is repeated until the formed routing table only includes the remote unit. 15. The data acquisition method according to any one of claims 11-14, characterized in that, the sending of the pseudo-carrier patrol to the remote units within the preset range is specifically in the form of digital signals and/or analog Signal form patrol transmission; Correspondingly, the polling sending is realized by controlling a logic switch array or controlling a single-pole multi-throw switch. 16. An indoor distribution system, characterized in that it includes a main unit, a remote unit, and a carrier channel for the main unit to communicate with the remote unit, and the main unit is used to communicate It is assumed that the remote units within the range send the fake carrier in rounds, obtain the response message fed back by the mobile station within the preset range, locate the mobile station according to the response message, and obtain the response message from the response message Collecting network performance data of the location of the mobile station; the remote unit is used to radiate the received pseudo-carrier indoors, wherein the main unit specifically includes: A pseudo-carrier acquisition module, configured to acquire a pseudo-carrier; A polling module, configured to send the pseudo-carrier patrol to the remote unit within a preset range through the carrier channel, so that the remote unit can radiate the pseudo-carrier indoors; A collection module, configured to obtain a response message fed back by a mobile station within the preset range, locate the mobile station according to whether the response message carries fake carrier information, and collect the response message from the response message network performance data describing the location of the mobile station. 17. The indoor distribution system according to claim 16, wherein the false carrier acquisition module comprises: The first submodule is used to receive a pseudo-carrier establishment instruction; The second submodule is configured to respond to the pseudo-carrier establishment instruction, detect whether there is an idle carrier channel for establishing the pseudo-carrier, and notify the remote unit to detect whether there is an idle carrier for establishing the pseudo-carrier Channel, if both are yes, then feed back a prompt message for prompting the establishment of a pseudo carrier; The third submodule is configured to receive from the base station the pseudo carrier established by the base station in response to the prompt message; or to establish the pseudo carrier in response to the prompt message. 18. The indoor distribution system according to claim 17, wherein the patrolling module comprises: The fourth sub-module is used to determine the remote unit of the current patrol according to the patrol routing table, and send the pseudo carrier to the remote unit of the current patrol; Correspondingly, the collection module includes: The fifth submodule is configured to obtain a response message fed back by a mobile station within the preset range, and judge whether the mobile station is located in the current round according to whether the response message carries fake carrier information. Within the coverage of the remote unit, if so, then locate the mobile station according to the position of the remote unit of the current round, and collect the network performance of the position of the mobile station from the response message data; The sixth sub-module is used to detect whether there are remote units that have not been patrolled in the patrol routing table, if yes, perform the next patrol transmission, and if not, complete this data collection. 19. The indoor distribution system according to claim 18, further comprising an extension unit connected between the main unit and the remote unit, correspondingly, the patrolling module further comprising: The seventh sub-module is used to obtain the optical fiber interface of the main unit, and establish a first-level interface table including the optical fiber interface; The communication unit connected to the main unit sends an inquiry message, and receives a confirmation message returned by the communication unit; judges whether the communication unit is an extension unit or a remote unit according to the confirmation message, and forms a first-level routing table; if the one If the first-level routing table includes an expansion unit, then the second-level interface table is established by the expansion unit, and a second-level routing table is formed according to the second-level interface table, and this step is repeated until the communication units included in the formed routing table are all for the remote unit. 20. The indoor distribution system according to any one of claims 16-19, wherein the sending of the pseudo-carrier patrol to remote units within a preset range is specifically in the form of digital signals and/or analog The signal is sent in the form of patrol; correspondingly, the patrol module includes a control logic switch array and/or a single-pole multiple-throw switch. 21. An indoor coverage system, comprising a base station and the indoor distribution system according to any one of claims 6-10 and 16-20.

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