WO2013097560A1

WO2013097560A1 - Indoor positioning method, device and system

Info

Publication number: WO2013097560A1
Application number: PCT/CN2012/084934
Authority: WO
Inventors: 彭卫红; 龚兰平; 袁震; 张巧明
Original assignee: 华为技术有限公司
Priority date: 2011-12-28
Filing date: 2012-11-21
Publication date: 2013-07-04
Also published as: CN102740350B; CN102740350A

Abstract

The present invention is applied to the technical field of communications, and disclosed are an indoor terminal positioning method, device and system. The method includes: a near-end machine of an indoor distribution system issuing a pseudo-carrier to a polled far-end machine according to a pre-established poll route table, so that the far-end machine issues the pseudo-carrier to a terminal; receiving a measurement report of the terminal returned by the far-end machine; and determining the location of the terminal according to the measurement report. The measurement report of the terminal contains the pseudo-carrier information and determines the location of the terminal by judging the far-end machine where the terminal is located. Accordingly, provided are a corresponding indoor positioning device and system. The technical solution provided in the present invention can solve the problem in the prior positioning technology that the costs are high and the solution is complicated and can lower the costs and realize simpler and accurate indoor positioning.

Description

Indoor positioning method, device and system The application is submitted to the Chinese Patent Office on December 28, 2011, and the application number is 201110446273. 5. The Chinese patent application whose invention name is "an indoor positioning method, equipment and system" is preferred. The entire contents of which are incorporated herein by reference. TECHNICAL FIELD The present invention relates to the field of communications technologies, and in particular, to an indoor positioning method, device, and system. BACKGROUND OF THE INVENTION Currently, positioning technologies for terminals (e.g., wireless terminals, such as mobile phones) are constantly evolving. The wireless terminal positioning refers to obtaining the location information (latitude and longitude coordinates) of the mobile phone or the terminal user through a specific positioning technology, and marking the position of the positioned object on the electronic map.

At present, there are generally two kinds of positioning technologies, one is based on the positioning of a Global Positioning System (GPS), and the other is based on the positioning of a base station (BS, Base Station) in a mobile communication network. In the mobile communication network, the base station-based positioning includes: a cell identification code Cel ID-based positioning technology, an advanced forward link (Triad) based positioning technology, and an assisted global satellite positioning system (AGPS). Assisted Global Positioning System) positioning technology. Regardless of the positioning technology used, there are certain problems in positioning in an indoor environment. Usually, several floors or even the entire building is a cell. The different indoor antenna signals received by the wireless terminal are signals of one cell, so it is impossible to determine which area of the building its specific location is located; and the global positioning system is not received in the indoor environment. (GPS, Global Positioning System) Signal, relying on GPS will not be able to locate specific location information. A positioning method adopted by the prior art is to introduce a "virtual beacon" concept for identifying a remote radio head (RRH) and to achieve high precision in indoor positioning. FIG. 1 is a schematic diagram of a prior art positioning method. In addition to all downlink channels of a cell, each RRH also uses different scrambling codes in a Wideband Code Division Multiple Access (WCDMA) system or in a global mobile communication system (GSM, Global). System of Mobi le communication) The system uses a carrier different from one serving cell to transmit a specific beacon composed of a synchronization channel, a pilot channel, and the like. In the measurement report of the wireless terminal, the signal strength information of the specific beacon and the service carrier is included, and the radio network controller (RNC) determines the RRH to which the wireless terminal is located according to the information. Due to pre-entry in the system The RRH location information corresponding to each specific scrambling code is recorded, so the RNC also determines the specific location of the wireless terminal in the building.

However, the prior art solutions also have certain drawbacks: With the prior art solution, a beacon generator and a code multiplexing unit are placed in each RRH, which makes the cost high and the scheme complicated. SUMMARY OF THE INVENTION An object of the present invention is to provide a terminal indoor positioning method, device, and system, which are aimed at solving the problems of high cost and complicated scheme in the existing positioning technology. The embodiment of the present invention is implemented in the following manner, the terminal indoor positioning method includes: the near-end device of the indoor distribution system sends a pseudo carrier to the wheeled remote machine according to the pre-established round robin routing table, so that the The remote machine sends the pseudo carrier to the terminal; receives the measurement report of the terminal returned by the remote machine; determines the location of the terminal according to the measurement report. Optionally, the measurement report of the terminal includes the pseudo carrier information, and determining a location of the terminal by determining a remote terminal where the terminal is located. Optionally, the transmitting the pseudo carrier to the remote device by the remote device comprises: the proximal device passing the carrier channel between the near end machine and the remote device to the remotely traversed remote device The pseudo-carrier is sent; or the near-end machine sends a pseudo carrier to the polled remote unit through a carrier channel between the near-end machine, the extension unit, and the remote unit.

Optionally, the establishing a round robin routing table by the near-end machine includes: obtaining, by the near-end machine, a location database distributed by the remote machine in the indoor, and establishing a round according to the location information of the remote machine in the database and the identification ID of each device. Patrol routing table. Optionally, after the local device or the radio network controller initiates a positioning request to the terminal, the near-end device sends a pseudo carrier to the remoted device. Optionally, before the transmitting the pseudo carrier to the remote locator, the method further includes: the near-end machine receiving the pseudo carrier sent by the base station. According to another embodiment of the present invention, a terminal indoor positioning method includes: a base station of an indoor distribution system transmitting a pseudo carrier to a near-end machine, so that the near-end machine according to a pre-established round patrol And sending, by the remote device, a pseudo carrier to the remote device, and sending the pseudo carrier to the terminal by the remote device;

Receiving, by the near-end machine, the location of the terminal determined by the near-end machine according to the measurement report returned by the terminal, and the measurement report of the terminal is sent by the remote machine to the near-end machine. Optionally, the transmitting the pseudo carrier to the remote device by the remote device comprises: the proximal device passing the carrier channel between the near end machine and the remote device to the remotely traversed remote device Or the pseudo-carrier is sent to the remote-tuned remote machine: the near-end machine passes the carrier channel between the near-end machine, the extension unit, and the remote unit to the wheel The patrol far-end machine sends a pseudo carrier. Another embodiment of the present invention is implemented in the form of an indoor positioning device:

The first processing module is configured to send a pseudo carrier to the wheeled remote machine according to the pre-established round robin routing table, so that the remote end The device sends the pseudo carrier to the terminal; the receiving module is configured to receive the measurement report of the terminal returned by the remote device; and the second processing module is configured to determine, according to the measurement report, the terminal position.

Optionally, the first processing module sends a pseudo carrier to the rounded remote device through a carrier channel between the device and the remote device; or, the first processing module is configured by A carrier channel between the device and the extension unit and the remote unit sends a pseudo carrier to the wheeled remote unit. Optionally, the measurement report of the wireless terminal received by the receiving module includes pseudo carrier information; and the second processing module determines the location of the terminal by determining the remote device where the terminal is located.

In another embodiment of the present invention, an indoor positioning device includes: a sending module, configured to send a pseudo carrier to the near-end machine, so that the near-end machine is in accordance with a pre-established round robin routing table The remote locator sends a pseudo carrier, and the remote carrier sends the pseudo carrier to the terminal; the receiving module is configured to receive the measurement report returned by the near end machine according to the terminal returned by the near end machine. The location of the terminal, the measurement report of the terminal is sent by the remote machine to the near-end machine.

Another embodiment of the present invention is implemented as follows: An indoor positioning system, comprising: a near-end machine, configured to send a pseudo carrier to a remotely-tuned remote device according to a pre-established round robin routing table, so as to enable The remote machine sends the pseudo carrier to the terminal, receives the measurement report of the terminal returned by the remote machine, determines the location of the terminal according to the measurement report, and the remote machine is configured to receive the near end After the pseudo carrier is sent, the pseudo carrier is sent to the terminal, and the measurement report returned by the terminal is received, and the measurement report is sent to the near-end machine.

As can be seen from the above, the embodiment of the present invention has the following beneficial effects: In the embodiment of the present invention, the near-end machine sends a pseudo carrier to the wheeled remote machine according to the pre-established round robin routing table, so as to make the far The terminal device sends the pseudo carrier to the terminal, and after receiving the measurement report of the terminal returned by the remote device, the near-end machine can determine the location of the terminal according to the information in the measurement report, and implement Indoor positioning eliminates the need for additional equipment, reduces costs, and makes positioning easier. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic diagram of a prior art positioning method

2 is a flowchart of an indoor positioning method according to an embodiment of the present invention; FIG. 3 is a schematic diagram of a pseudo carrier establishing signal flow in a method according to an embodiment of the present invention;

4 is a schematic diagram of a routing table in a method according to an embodiment of the present invention; FIG. 5 is a schematic diagram of a remote machine and a physical location according to an embodiment of the present invention; FIG. 6 is a flowchart of a positioning method according to an embodiment of the present invention; FIG. 8 is a schematic diagram of a second application example of the embodiment of the present invention; FIG. 9 is a schematic structural diagram of an indoor positioning system according to an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of an indoor positioning device according to an embodiment of the present invention. FIG. 11 is a schematic structural diagram of another indoor positioning device according to an embodiment of the present invention. The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention. It is not intended to limit the invention.

The embodiment of the invention provides a terminal indoor positioning method, which can reduce the cost and realize a simpler indoor precise positioning.

2 is a flow chart of an indoor positioning method according to an embodiment of the present invention. As shown in Figure 2, it includes:

Step 201: The near-end machine of the indoor distribution system sends a pseudo carrier to the wheeled remote machine according to the pre-established round robin routing table, so that the remote machine delivers the pseudo carrier to the terminal.

The transmitting the pseudo carrier to the remote device by the remote device includes: after the proximal device establishes a link through a carrier channel between the base station device, the near end device, and the remote device, The remote device sends a pseudo carrier to the polled remote device through a carrier channel between the base station device, the near end device, the extension unit, and the remote unit.

The establishing a round robin routing table by the near end machine includes: the near end machine acquires a location data database distributed by the remote machine in the indoor, and establishes a round robin routing table according to the location information of the remote machine in the database and the identification ID of each device.

Step 202: Receive a measurement report of the terminal returned by the remote machine.

Step 203: Determine a location of the terminal according to the measurement report.

The measurement report of the terminal includes the pseudo carrier information, and determining the location of the terminal by determining the remote device where the terminal is located.

In the embodiment of the present invention, the near-end machine sends a pseudo carrier to the wheeled remote machine according to the pre-established round robin routing table, so that the remote machine delivers the pseudo carrier to the terminal, so the near-end machine is After receiving the measurement report of the terminal returned by the remote device, the location of the terminal may be determined according to the information in the measurement report, thereby achieving indoor positioning, thereby eliminating the need for additional equipment and reducing the cost. Implementing the positioning method is also simpler.

Another indoor positioning method (not shown) of the embodiment of the present invention includes:

Step 21: The base station of the indoor distribution system sends a pseudo carrier to the near-end machine, so that the near-end machine sends a pseudo carrier to the wheeled remote machine according to the pre-established round robin routing table, and the remote machine is The pseudo carrier is delivered to the terminal.

After the base station device, the near-end device, and the remote device establish a carrier channel, the base station sends a pseudo carrier to the near-end device; or, the base station device, the near-end device, the extension unit, and the remote device After establishing a carrier channel, the base station sends a pseudo carrier to the near-end machine.

And sending, by the near-end machine, the pseudo-carrier to the patrolling remote machine: the near-end machine sends a pseudo carrier to the patrolling remote machine through a carrier channel between the near-end machine and the remote machine; Or,

And sending, by the local end machine, the pseudo carrier to the patrolling remote machine comprises: transmitting, by the local end machine, the carrier channel between the local end machine, the extension unit and the remote unit Pseudo carrier. The base station sends a pseudo carrier to the near-end machine after receiving the positioning request from the radio network controller for the terminal.

Step 22: Receive, by the near-end machine, a location of the terminal determined by the near-end machine according to the measurement report returned by the terminal, where the measurement report of the terminal is sent by the remote machine to the near-end machine.

The embodiment of the invention also realizes indoor positioning, no additional equipment is added, the cost is reduced, and the positioning method is simpler.

The technical solutions of the embodiments of the present invention are described in more detail below. The terminal in the embodiment of the present invention may be various types of terminals. The following embodiments are exemplified by the wireless terminal, but are not limited thereto.

FIG. 3 is a schematic diagram of a pseudo carrier setup signal flow in a method according to an embodiment of the present invention.

As shown in Figure 3, the indoor distribution system is usually composed of a source and a distributed antenna system (Distributed Antenna).

System, DAS), wherein the source may be a base station, the base station may be a Base Transceiver Station (BTS) / NodeB / eNodeB, or include a baseband unit (BBU) and a remote radio unit (remote radio) Unit, RRU); DAS includes a near-end machine (ie, a master unit, also called an access control unit (ACU)), an extension unit (ie, an expansion conversion unit (ECU)), Remote unit (ie remote unit, antenna radio terminal), antenna ANT, etc. It should be noted that the expansion unit is an optional unit.

In the embodiment of the present invention, the process of establishing a signal stream by the pseudo carrier is: a radio network controller RNC or a base station controller (BSC) initiates a setup pseudo carrier instruction, and the pseudo carrier does not carry the service signal. After receiving the command, the base station equipment (BBU and RRU) establishes a pseudo carrier and sends it to the near-end ACU, which is sent by the near-end ACU to the extension unit ECU, and is sent by the extension unit ECU to the remote unit aSR. The end machine aSR is transmitted to the wireless terminal, and the signal flow fed back by the wireless terminal is reversely transmitted to the base station device (BBU and RRU) through the aSR, the ECU, and the ACU.

After the RNC or the BSC initiates the establishment of the pseudo carrier command, the parameters of the pseudo carrier fed back by the wireless terminal, the signal to noise ratio (SNR, Signal/Noise) of the wireless terminal, the pilot signal level of the neighboring cell, and the like are monitored, and the RNC or the BSC requires wireless. The terminal does not perform new carrier switching and the like; after receiving the pseudo carrier command by the base station device (including the BBU and the RRU), the base station device (including the BBU and the RRU) establishes the pseudo carrier, and notifies the near-end ACU that the carrier is a pseudo carrier, and the near-end machine The pseudo carrier is polled according to the round robin routing table; at the same time, the near end machine notifies the extension unit ECU to perform round robining on the pseudo carrier (here, in the case of including the ECU). During the round robin, the remote unit and the wireless terminal are wirelessly connected, and the pseudo carrier information is returned by the wireless terminal to determine the location of the remote unit at which the wireless terminal is located. The database in the ACU of the near-end machine pre-stores the associated data information of each remote machine and the physical location, and patrols the specific remote machine and location according to the pseudo carrier wheel. After the wireless terminal returns the pseudo carrier information, the location of the wireless terminal can be determined, thereby achieving positioning. Among them, the routing table is shown in Figure 4. 4 is a schematic diagram of a routing table in a method according to an embodiment of the present invention. As shown in FIG. 4, the near-end machine (main unit) includes a first-level interface table, and the expansion unit sequentially connected includes a secondary interface table, a tertiary interface table, and so on. The first-level interface table includes the ID (logical value) and the ID value of the near-end machine (main unit). The second-level interface table includes the extension unit ID, logical value, and ID value. The near-end machine (master unit) ID is the near-end machine unique identity, and the extension unit ID is the extension unit unique identity.

The associated data information of the remote machine and the physical location is shown in Table 1 below:

Table 1 Association data between remote machine and physical location

Figure 5 is a schematic illustration of a remote unit (remote unit) and physical location in an embodiment of the present invention. As shown in Fig. 5, both the floor 5 and the floor 4 are connected to different remote units (remote units) through the expansion unit, and the antenna ANT is connected.

FIG. 6 is a flowchart of a positioning method according to an embodiment of the present invention. As shown in Figure 6, it includes:

Step 601: The near-end machine acquires a location database, and establishes a round robin routing table in advance;

In this step, the near-end machine obtains a location database distributed by the remote machine in the room, and establishes a round-trip routing table according to the location information of the remote machine in the database and the identification ID of each device. Thus, the database in the near-end machine pre-stores the associated data information of each remote machine and the physical location. The device referred to herein, including the remote unit, may also include an extension unit.

Step 602: Initiate a positioning request.

In this step, the demand of the positioning setting terminal may be initiated by the near-end machine itself or the RNC or the BSC, that is, the positioning request for the wireless terminal is initiated.

Step 603: Initiate establishment of a pseudo carrier instruction according to the positioning request.

In this step, if the RNC initiates the location request, the RNC or the BSC sends the establishment of the pseudo carrier command to the base station device. If the near-end machine initiates a positioning request, the pseudo-carrier is subsequently established by the near-end machine itself, and this step can be omitted. Step 604: Detect a carrier channel of each device in the system, and establish a pseudo carrier according to different conditions. If the previous positioning request step is initiated by the near-end machine, the near-end machine establishes a pseudo carrier by itself, and may not detect the carrier of each device. Channel condition, ie this step can be omitted. If the previous step is initiated by the RNC or the BSC, the base station device establishes a pseudo carrier and sends the pseudo carrier to the near-end machine. In this step, the base station device (including the BBU and the RRU) can perform the self-test first. Determine whether there are redundant carrier channels to establish a pseudo carrier, if any, then feed back to the RNC or BSC; the base station device notifies the near-end ACU to confirm whether the near-end machine has redundant carrier channels to establish a pseudo carrier, the near-end machine If it is determined that there is a redundant carrier channel, the feedback is ready to the base station device; the near-end machine notifies the extension unit ECU to confirm whether the extension unit has an extra carrier channel to establish a pseudo carrier, and if the extension unit determines that there is an extra carrier channel, Then, the feedback to the near-end machine is ready; the extension unit notifies the remote machine aSR, confirms whether the remote machine has redundant carrier channels to establish a pseudo carrier, and if the remote machine determines that there is a redundant carrier channel, it prepares feedback to the extension unit. Ready. When the above four devices (three devices if there are no extension units) are ready, a pseudo carrier can be established, and any one of them does not hold, and all of them cannot be established. Through the foregoing processing, the base station device (BBU/RRU), the near-end device, the extension unit, and the remote device can establish a pseudo carrier by using a carrier channel, and the remote terminal connects the setting terminal to form a wireless link.

Step 605: The near-end machine sends a pseudo carrier to the wheeled remote machine according to the pre-established round robin routing table, so that the remote machine delivers the pseudo carrier to the wireless terminal;

After the round-trip router establishes the round-trip routing table, the first remote machine of the round-robin is determined according to the round-trip routing table, and the pseudo-carrier is sent to the remote machine, so that the remote machine delivers the pseudo carrier to the wireless terminal. .

Step 606: Receive a measurement report of the wireless terminal returned by the remote device, and determine a location of the corresponding wireless terminal according to the measurement report.

In this step, the near-end machine receives the measurement report of the wireless terminal returned by the remote machine. The data in the measurement report includes: pseudo carrier information (parameter information associated with the remote terminal and the remote unit), and may further include received signal code power (RSCP, Received Signal Code Power), SNR or chip energy/interference of the wireless terminal Power density Ec/Io, neighbor pilot signal and strength, link traffic data (data service can be converted according to rate) and remote machine received received signal strength indication (RSSI, Received Signal Strength Indication) or broadband reception total Power (RTWP, Received Total Wideband Power) and spectrum data of the remote unit.

The near-end machine can determine the location of the corresponding wireless terminal based on the measurement report. Because the database in the ACU of the near-end machine pre-stores the associated data information of each remote machine and the physical location, after receiving the measurement report, the data information of the measurement report includes pseudo carrier information, and the distance of the wireless terminal is determined by determining End machine, it can be determined that the setting terminal The location is achieved, that is, the location of the wireless terminal can be determined by patrolling a specific remote machine and location information according to the pseudo carrier wheel, thereby achieving positioning.

If the located wireless terminal is not a set terminal that needs to be located, the next remote machine will continue to be patrolled.

Step 607: The near-end machine uploads positioning information to the server.

Optionally, the near-end machine can transmit the location information of the terminal to the server where the Operations and Maintenance Center (0MC) is located for easy reference, and can also serve as a backup.

Step 608: Determine whether the location information is location information of a required terminal.

The near-end machine can determine whether the location information is the location information of the desired terminal, and if so, proceeds to step 611 to end, and if not, proceeds to step 609;

The near-end machine can also send the positioning information to the RNC or the BSC through the base station device, and the RNC or the BSC further determines whether the location information of the terminal is required;

In this step, the near-end machine returns the positioning information to the base station device, and then the base station device sends the positioning information to the RNC or the BSC. Therefore, the base station device can also obtain the location information of the terminal, and the network information of the base station device, the RNC or the BSC can conveniently refer to the location information.

Step 609: Continue routing patrol;

In this step, the pseudo-carrier wheel is used to patrol the next remote unit, and the same operation as step 605^608 described above is performed. Step 610: End the positioning process until the required positioning information is found.

Until the location information is found or all the remote machines are processed, the positioning ends.

Step 611, the end.

The following describes the specific application of the embodiment of the present invention:

FIG. 7 is a schematic diagram of an application example 1 of an embodiment of the present invention:

As shown in Figure 7, each remote unit aSR is connected to an antenna. The antenna is placed in a specific room on the floor. The coverage radius of each antenna is less than 15 meters. By polling each remote machine aSR, wireless can be used. The terminal is positioned to a specific room area.

FIG. 8 is a schematic diagram of a second application example of the embodiment of the present invention:

As shown in Figure 8, each ECU in the figure covers a floor. By polling each expansion unit ECU, the wireless terminal can be positioned to each specific floor.

The indoor positioning method of the embodiment of the present invention is described in detail above. Based on the foregoing method, the embodiment of the present invention further provides an indoor positioning system and device. The details are described below. 9 is a schematic structural view of an indoor positioning system according to an embodiment of the present invention.

As shown in Figure 9, the indoor positioning system includes: a proximal machine and a remote machine.

a near-end machine, configured to send a pseudo carrier to the wheeled remote machine according to the pre-established round robin routing table, so that the remote machine sends the pseudo carrier to the terminal, and receives the return of the remote machine. a measurement report of the terminal, determining a location of the terminal according to the measurement report;

The remote device is configured to send the pseudo carrier to the terminal, receive the measurement report returned by the terminal, and send the measurement report to the near-end machine.

The near-end machine sends a pseudo-carrier wave to the wheeled remote unit through a carrier channel between the near-end machine and the remote unit.

The indoor positioning system may further include an extension unit (not shown), and the near-end machine delivers the round-front remote machine through a carrier channel between the near-end machine, the extension unit, and the remote unit. Pseudo carrier.

FIG. 10 is a schematic structural diagram of an indoor positioning device according to an embodiment of the present invention.

As shown in FIG. 10, the device includes a first processing module, a receiving module, and a second processing module.

The first processing module is configured to send a pseudo carrier wave to the remote locator according to the pre-established patrol routing table, so that the remote device delivers the pseudo carrier to the terminal;

The receiving module is configured to receive a measurement report of the terminal returned by the remote machine;

The second processing module is configured to determine a location of the terminal according to the measurement report

The first processing module sends a pseudo carrier to the rounded remote device through a carrier channel between the device and the remote device; or

The first processing module sends a pseudo carrier by the patrolling remote machine through a carrier channel between the device and the extension unit and the remote unit.

The first processing module acquires a location database distributed by the remote device in the indoor, and establishes the round robin routing table according to the location information of the remote device in the database and the identification ID of each device.

The measurement report of the wireless terminal received by the receiving module includes pseudo carrier information; and the second processing module determines the location of the terminal by determining the remote device where the terminal is located.

The device is a near-end machine ACU of the indoor positioning method described above.

FIG. 11 is a schematic structural diagram of another indoor positioning device according to an embodiment of the present invention.

As shown in FIG. 11, the device includes: a sending module and a receiving module.

a sending module, configured to send a pseudo carrier to the near-end machine, so that the near-end machine sends a pseudo carrier to the wheeled remote machine according to the pre-established round robin routing table, and the pseudo carrier is used by the remote machine Issued to the terminal; a receiving module, configured to receive, by the near-end machine, a location of the terminal determined by the near-end machine according to a measurement report returned by the terminal, where the measurement report of the terminal is sent by the remote machine to the near-end machine .

The device is a base station for an indoor positioning method.

It should be noted that the interaction relationship between the foregoing functional modules and units is the same as that described in the foregoing method flow, and details are not described herein again.

It can be understood that each processing module in each embodiment may be a processor, the sending module may be a transmitter, and the receiving module may be a receiver.

In summary, in the embodiment of the present invention, the near-end machine sends a pseudo carrier to the wheeled remote machine according to the pre-established round robin routing table, so that the remote machine delivers the pseudo carrier to the terminal. Then, after receiving the measurement report of the terminal returned by the remote machine, the near-end machine can determine the location of the terminal according to the information in the measurement report, thereby realizing indoor positioning, thereby eliminating the need to additionally add equipment. , reducing costs and making positioning methods easier.

A person skilled in the art can understand that all or part of the steps of implementing the foregoing embodiments can be completed by a program instructing related hardware, and the program can be stored in a computer readable storage medium, the storage. Media, such as R0M/RAM, disk, CD, etc. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. Within the scope.

Claims

Rights request

An indoor positioning method, comprising: the near-end machine of the indoor distribution system sends a pseudo carrier to the wheeled remote machine according to the pre-established round robin routing table, so that the remote machine will The pseudo carrier is sent to the terminal; receiving the measurement report of the terminal returned by the remote machine; determining the location of the terminal according to the measurement report.

The indoor positioning method according to claim 1, wherein determining the location of the terminal according to the measurement report comprises: the measurement report of the terminal includes the pseudo carrier information, and determining the terminal The remote machine at the location determines the location of the terminal.

The indoor positioning method according to claim 1, wherein: the near-end machine sends a pseudo carrier to the wheeled remote machine: the near-end machine passes between the near-end machine and the remote machine The carrier channel sends a pseudo carrier to the wheeled remote unit; or the near end machine goes to the wheeled remote unit through a carrier channel between the near end unit, the extension unit and the remote unit Pseudo carrier.

The indoor positioning method according to claim 1, wherein: the establishing a round robin routing table by the near end machine comprises: obtaining, by the near end machine, a location database distributed by the remote machine in the indoor, according to the remote end in the database The location information of the machine is combined with the identification ID of each device to establish a round robin routing table.

The indoor positioning method according to claim 1, wherein the near-end machine sends a pseudo carrier to the wheeled remote machine after the own or the radio network controller initiates a positioning request to the terminal.

The indoor positioning method according to claim 1, wherein before the pseudo-carrier is sent to the remote terminal, the method further comprises: the near-end machine receiving the pseudo carrier transmitted by the base station.

An indoor positioning method, comprising: the base station of the indoor distribution system transmitting a pseudo carrier to the near-end machine, so that the near-end machine goes to the wheeled remote machine according to the pre-established round robin routing table Transmitting a carrier, and transmitting, by the remote device, the pseudo carrier to the terminal; receiving, by the near-end machine, a location of the terminal determined by the near-end machine according to a measurement report returned by the terminal, and measuring the terminal The report is sent by the remote machine to the near end machine.

The indoor positioning method according to claim 7, wherein: the near-end machine sends a pseudo carrier to the remote-tuned remote machine: the near-end machine passes between the near-end machine and the remote machine The carrier channel sends a pseudo carrier to the wheeled remote unit; or the near end machine sends a pseudo carrier to the wheeled remote unit: the near end machine passes the near end machine, the extension unit, and The carrier channel between the remote machines sends a pseudo carrier to the polled remote unit.

An indoor positioning device, comprising: a first processing module, a receiving module, and a second processing module; wherein the first processing module is configured to patrol the remote end according to a pre-established round robin routing table. And transmitting, by the remote device, the pseudo carrier to the terminal; the receiving module, configured to receive the measurement report of the terminal returned by the remote device; the second processing module, And configured to determine a location of the terminal according to the measurement report.

The indoor positioning device according to claim 9, wherein: the first processing module sends a pseudo carrier to the rounded remote device through a carrier channel between the device and the remote device Or the first processing module sends a pseudo carrier to the polled remote unit through a carrier channel between the device and the extension unit and the remote unit.

The indoor positioning device according to claim 9, wherein: the measurement report of the wireless terminal received by the receiving module includes pseudo carrier information;

The second processing module determines the location of the terminal by determining the remote machine where the terminal is located.

An indoor positioning device, comprising: a sending module, configured to send a pseudo carrier to the near-end machine, so that the near-end machine is inspected according to a pre-established round robin routing table The pseudo carrier is transmitted, and the pseudo carrier is sent to the terminal by the remote device;

a receiving module, configured to receive, by the near-end machine, a location of the terminal determined by the near-end machine according to a measurement report returned by the terminal, where the measurement report of the terminal is sent by the remote machine to the near-end machine .

An indoor positioning system, comprising: a near-end machine, configured to send a pseudo carrier to a wheeled remote machine according to a pre-established round robin routing table, so that the remote machine will be pseudo Transmitting a carrier to the terminal, receiving a measurement report of the terminal returned by the remote device, and determining a location of the terminal according to the measurement report;