KR101605301B1 - A wireless monitoring system for small cell access point, and operating method therefor - Google Patents

Abstract

The present invention relates to a wireless monitoring technology of a small cell access point (AP). To this end, the present invention provides a wireless monitoring system of a small cell AP and a driving method thereof. The wireless monitoring system includes: a main CPU; a system memory storing firmware; an uplink/downlink interface connecting a small cell AP to a user terminal (UEs) and a core network and driving the same; a state data memory which stores state data of a small cell AP; an input and output port which provides the information of the sate data memory as a state parameter; and a priority table which stores a connection priority of measurement and analysis devices.

Description

Technical Field [0001] The present invention relates to a wireless monitoring system for a small-cell AP,

The present invention relates to a wireless monitoring technology of a small-sized cell access point (AP), in which at least two types of wireless transmitting / receiving means are provided in a small-cell AP (access point) And a method of driving the wireless monitoring system of a small-cell AP that enables monitoring of various parameters.

BACKGROUND ART [0002] Techniques for monitoring status from the outside for base station equipment providing wireless communication services are provided by various means and methods.

As a background to the present invention, there is a mobile integrated measuring instrument technology of Korean Patent No. 10-1216974 B1 shown in FIG. This technique is an integrated measurement unit consisting of three modules, that is, an optical power meter, a spectrum analyzer, and a site master, in which actual measurement is performed on a source input from a base station; An FPGA that takes charge of input / output with the integrated measurement unit and operates under the control of a DSP; A DSP for controlling the integrated measuring unit in response to a command from the CPU and transmitting measurement results of the integrated measuring unit to the CPU by performing various measurement algorithms; A CPU connected to the mobile device for receiving a set value according to a measurement mode from the mobile device and transmitting the received set value to the DSP, receiving the measurement result of the integrated measurement unit from the DSP, and transmitting the measurement result to the mobile device; And a Wi-Fi module for wireless communication between the mobile device and the CPU.

As another background of the present invention, there is a high frequency dispersion and remote monitoring and control apparatus technology of a mobile communication base station of Korean Patent No. 10-0443339 B1 shown in FIG. 2. The mobile communication base station includes a base station controller, a radio frequency device, and an optical repeater. The base station controller, the radio frequency device, and the optical repeater are separately installed indoors and outdoors. The mobile communication base station includes a radio frequency device or an optical repeater installed outside the mobile terminal, (RF) or optical repeater, and converts a high-frequency signal into an optical signal or a radio-frequency signal and separates it into signals of transmission channels (TX0 and TX1) and reception channels (RX0 and RX1) An up-down interface unit connected to the donor interface via an RF cable, for coupling FA transmission / reception signals output from the donor interface to a multi-FA signal, and for converting an intermediate frequency signal to an intermediate frequency; And a base station controller for receiving signals and controlling devices in the same cell of the transmission / reception control station, And a high frequency dispersion and remote monitoring and control device of the new base station.

As another background of the present invention, there is a signal monitoring and analysis method and system technology of a wireless base station in a WCDMA mobile communication environment of Korean Patent Laid-Open No. 10-2005-0053052 shown in FIG. This technology is installed in a WCDMA mobile communication system and receives a transmission RF signal and a reception RF signal through an antenna, receives the transmission RF signal and a reception RF signal, and analyzes the received transmission RF signal and reception RF signal in a spectrum area and a code area, One or more base station transmitters in which a transmitting base station monitoring device is installed; A base station controller that processes protocol matching with each of the base station transmitters and receives and transmits the overall monitoring information; A switching hub for receiving the comprehensive monitoring information from the base station controller and transmitting the received comprehensive monitoring information to a specific receiving-side communication device; And at least one manager computer for receiving the comprehensive monitoring information from the switching hub and outputting the comprehensive monitoring information received through the monitor screen. The wireless monitoring system according to claim 1, to provide.

KR 10-1216974 B1 KR 10-0443339 B1 KR 10-2005-0053052 A JP 2012-029059 A

The present invention transmits parameters of a small cell access point (AP) corresponding to various short-range wireless communication channels provided in each of the measurement and analysis equipments as status data to a measurement and analysis device through a short-range wireless communication channel A wireless monitoring system of a small-sized cell AP and a driving method thereof are provided.

The present invention is also applicable to a small-cell AP 100 in which even if a small-cell AP 100 has a deadlock or a stack overflow, The present invention provides a wireless monitoring system and a method of driving the same of a small-cell AP capable of providing operation state parameters by allowing an operator to perform an interrupt routine by performing an interrupt routine.

In addition, the present invention provides a wireless monitoring system of a small-cell AP capable of supporting various short-range wireless communication channels provided in each of the measurement and analysis equipments and simultaneously transmitting status data to a plurality of measurement and analysis equipments, and a driving method thereof Another problem to be solved is the problem.

According to the present invention, A system memory for storing firmware for driving the main CPU; And an uplink / downlink interface driven by the main CPU to connect and connect the small cell AP to the user terminals UEs and the core network; A status data memory for storing the status data; An input / output port connected to two or more short-range wireless transmitting / receiving means for connecting to measurement and analysis equipments and for providing information of the status data memory as operating condition parameters; And a priority table stored in a connection priority order of the measurement and analysis equipment connected through the short-range wireless transmission / reception means and referred to by the main CPU, and a method of driving the wireless monitoring system of the small- to provide.

According to the wireless monitoring system and the driving method of the small-cell AP of the present invention, the technical effect of providing state data of the small-cell AP to the measuring and analyzing equipment in correspondence with various short- have.

Also, according to the wireless monitoring system and method for driving the small-cell AP of the present invention, even when the small-sized cell AP is in a deadlock state or a stack overflow state, Provides technical effects of providing state data of small cell APs to measurement and analysis equipment.

In addition, according to the wireless monitoring system and the driving method of the small-cell AP of the present invention, it is possible to provide a wireless monitoring system and a method of driving the small- .

FIG. 1 is a diagram showing the configuration of a mobile integrated measuring instrument
FIG. 2 is a diagram showing another configuration of a high frequency dispersion and remote monitoring and controlling device technology of a mobile communication base station
FIG. 3 is a diagram illustrating a signal monitoring and analysis method and system configuration of a wireless base station in a WCDMA mobile communication environment
FIG. 4 is a schematic view showing the technical outline of the present invention
FIG. 5 is a block diagram of a configuration of a wireless monitoring system of a small-cell AP according to the present invention.
FIG. 6 is a flow chart of the operation of the measurement and analysis equipment 200 in the wireless monitoring system of the small-cell AP of the present invention.
FIG. 7 is a flow chart of the operation of the small-cell AP 100 in the wireless monitoring system of the small-

The following merely illustrates the principles of the invention. Accordingly, those skilled in the art will be able to devise various apparatuses which, although not explicitly described or shown herein, embody the principles of the invention and are included in the concept and scope of the invention. It is to be understood that all of the conditional terms and embodiments recited herein are expressly intended to be purely for purposes of understanding the concepts of the present invention and are not intended to be limiting to such specifically recited embodiments and conditions . It is also to be understood that the detailed description, as well as the principles, aspects and embodiments of the invention, as well as specific embodiments thereof, are intended to cover structural and functional equivalents thereof.

The above objects, features and advantages will become more apparent from the following detailed description in conjunction with the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 4 shows a technical outline of the present invention. The small cell AP 100 has a similar function to a macro cell base station in that it provides communication services for user equipments (UEs) in a small area. Since the small cell AP 100 is installed in an arbitrary space by a user, the small cell AP 100 is configured to be remotely managed and controlled by monitoring its operation state by a HeNB management system (HeMS) or a core network. At this time, the operating condition parameters to be monitored include cell information, channel information, channel quality indication (CQI), serving cell RSRP, (RACH), user terminal transmit power (UETx power), random access channel information (RACH Info), physical downlink shared channel (PDSCH) information, radio link control (RLC) Information, and the like. The small-cell AP 100 measures and analyzes the operating environment and monitors the operation status by directly accessing from the field to measure detailed parameters not provided to the HeNB management system or the core network There is a need. Also, the small-cell AP 100 may experience a power failure, a deadlock, and a stack overflow depending on the operating environment. In such a situation, the small cell AP may not be able to respond due to the stopping or blocking of the control function from the HeNB management system (HEMS) or the core network. In order to solve this problem, Must be provided and analyzed directly.

The measurement and analysis apparatuses are configured to receive operation status parameters through a dedicated connection terminal such as a serial bus, Ethernet, or the like, provided on the small cell AP side. However, small cell APs are installed in a high place in order to secure service coverage or are buried in an architectural structure because direct operation by a user is unnecessary. Therefore, the space and location where the small cell AP is installed are generally not easily accessible.

The wireless monitoring system of the small-cell AP 100 of the present invention is characterized in that a parameter of a small-cell AP (access point) referred to as a home e-node B (HeNB) in a long term evolution ) To the measurement and analysis equipment 200 through a short-range wireless communication channel. In addition, the wireless monitoring system of the small-cell AP 100 of the present invention can transmit state data to a plurality of measurement and analysis equipments 200 corresponding to various short-range wireless communication channels provided in each of the measurement and analysis equipments A wireless monitoring system of the small-cell AP 100 and a driving method thereof are provided.

In order to achieve the above object, the present invention provides a configuration of a small-cell AP 100 that provides status data corresponding to various short-range wireless communication channels provided in each of the measurement and analysis equipments 200, As shown in FIG.

The present invention also provides an interrupt routine by the main CPU in the event that the small cell AP 100 fails to respond due to a deadlock or a stack overflow, So as to provide the operating state parameters.

FIG. 5 shows a configuration of a wireless monitoring system of a small-cell AP of the present invention. The small-cell AP 100 of the present invention includes a main CPU 110 that performs overall control of the small-cell AP 100; A system memory 130 for storing firmware for driving the main CPU 110; And an uplink / downlink interface 120 driven by the main CPU 110 to connect the small cell AP 100 to the user terminals UEs and the core network.

The small-cell AP 100 of the present invention includes a state data memory 140 for storing state data of the small-cell AP 100 by the main CPU 110. The status data memory 140 stores the cell information, the channel information, the channel quality indication (CQI), and the average received signal of the serving cell, as operating condition parameters described in FIG. (RACH) information, a physical downlink shared channel (PDSCH) information, a radio link control (RACH) information, (RLC) information, multiple access control (MAC) information, and the like.

The small-cell AP 100 of the present invention includes an input / output port 150 connected to the main CPU 110 to provide data input / output, and the input / output port 150 is provided with at least two types of short- And is connected to the measurement and analysis equipment 200 and is configured to transmit information of the state data memory 140 as operation state parameters. Examples of the short-range wireless transmission / reception means include a Wi-Fi module 160; A Bluetooth module 170; And may be provided as an equivalence providing a function equivalent to a zigbee module (180).

When the Wi-Fi module 160 is used as the short-range wireless transmitting / receiving means, the user of the measuring and analyzing apparatus 200 can confirm the small-cell AP 100 through a Wi-Fi scan and accesses with a preset password. Also, even when the Bluetooth module 170 is used, the small cell AP 100 is confirmed through the Bluetooth scan, and pairing access is performed with a preset password. The connection of the position space module 180 identifies the small cell AP 100 through a local network search and connects to the small cell AP 100 network as a device node. At this time, the micro-base station becomes a coordinator and constitutes a PAN (Personal Area Network) network with the measurement and analysis equipments 200.

In addition, the small-cell AP 100 of the present invention includes a priority table 145 connected to the main CPU 110, and the priority table 145 is provided with the measurement And the connection priority of the analysis equipments 200 are stored in advance. The priority order stored in the priority table 145 is assigned priority for each of the local wireless transmitting / receiving means connected to the input / output port 150 or the priority assigned to each of the connected measuring and analyzing devices 200 is stored . When a plurality of measurement and analysis equipments 200 are connected to the small cell AP 100 and request operation state parameters at the same time, the main CPU 110 of the small cell AP 100 refers to the priority table 145 To provide operating state parameters.

FIG. 6 shows a driving flowchart of the measurement and analysis equipment 200 in the wireless monitoring system of the small-cell AP of the present invention. Hereinafter, a method of driving the wireless monitoring system of the small-cell AP according to the present invention will be described step by step.

And an input / output port 150 connected to the main CPU 110 of the small-cell AP 100 to provide data input / output, and the input / output port 150 is connected to at least two types of short- A wireless monitoring system for a small-cell AP configured to connect to measurement and analysis equipment (200) and to transmit operating condition parameter information stored in a state data memory (140) to a measurement and analysis equipment (200) (200), comprising:

S100: The wireless monitoring of the small cell AP is started by the measurement and analysis equipment 200;

- S110: a step of scanning from the succeeding measurement and analysis equipment 200 to determine whether the available short range wireless transmitting / receiving means of the adjacent small cell AP exists.

In step S120, if the available short range wireless transmitting / receiving means does not exist in step S110, the measurement and analysis equipment 200 determines whether or not the available short range wireless transmitting / Reports that there is no transmission / reception means and ends the wireless monitoring of the small-cell AP (S160).

S130: a step in which the measurement and analysis equipment 200 is connected to the small-sized cell AP when the available short-range wireless transmission / reception means is detected in step S110, in which the available short-range wireless transmission / reception means of the adjacent small- .

In this case, when the Wi-Fi module 160 is used as the short-range wireless transmitting / receiving means, the user of the measuring and analyzing apparatus 200 can confirm the small-cell AP 100 through the Wi-Fi scan and access with a preset password. Also, even when the Bluetooth module 170 is used, the small cell AP 100 is confirmed through the Bluetooth scan, and pairing access is performed with a preset password. The connection of the position space module 180 identifies the small cell AP 100 through a local network search and connects to the small cell AP 100 network as a device node. At this time, the micro-base station becomes a coordinator and constitutes a PAN (Personal Area Network) network with the measurement and analysis equipments 200.

S140: Next, the measurement and analysis apparatus 200 connected to the small-cell AP 100 requests, receives, and processes operation state parameters stored in the state data memory 140 of the small-cell AP 100; Lt; / RTI >

- S150: Repeating the operation status parameters of the small-cell AP 100 from the measurement and analysis apparatus 200 when the step of requesting, receiving, and processing operation continues, starting from step S140;

- S160: terminating the wireless monitoring of the small-cell AP when the step of requesting, receiving and processing the operating state parameters of the small-cell AP 100 from the measuring and analyzing apparatus 200 is completed;

.

FIG. 7 shows a driving flowchart of the small-cell AP 100 in the wireless monitoring system of the small-cell AP of the present invention. In the wireless monitoring system of the small-cell AP of the present invention, when the small-cell AP 100 has a deadlock or a stack overflow, have. The present invention is also applicable to the case where the small cell AP 100 is connected to the input / output port 150 in order to enable the small cell AP 100 to provide the operating state parameters of the state data memory 140 to the measurement and analysis equipments 200 When an access request is detected from the measurement and analysis equipment 200 to the near-field wireless transmitting / receiving means of a certain type or more, an interrupt operation is started to the main CPU 110 in the small-cell AP 100, . Hereinafter, a method of driving the wireless monitoring system of the small-cell AP according to the present invention will be described step by step.

And an input / output port 150 connected to the main CPU 110 of the small-cell AP 100 to provide data input / output, and the input / output port 150 is connected to at least two types of short- In a wireless monitoring system of a small-cell AP configured to connect to measurement and analysis equipment (200) and to transmit operation state parameter information stored in a state data memory (140) to a measurement and analysis equipment (200) 100,

S200: the wireless monitoring of the small-cell AP 100 is started;

S210: connecting the measurement and analysis equipment 200, which has started an interrupt operation as a request for connection to the main CPU 110 of the small cell AP 100, to the small cell AP through the corresponding short-range wireless communication channel . At this time, the main CPU 110 of the small cell AP 100 is connected to the measurement and analysis equipment 200 as a preset password.

S220: Next, the main CPU 110 of the small-cell AP 100 determines whether there is another measurement and analysis apparatus 200 connected to the small-cell AP 100.

S240: If there is no other measurement and analysis equipment 200 connected to the current small-cell AP 100 in step S220, the main CPU 110 of the small-cell AP 100 transmits the measurement and analysis And a step of waiting for the request of the operation state parameter data from the device 200.

S260: When the operation state parameter data request is received from the connected measurement and analysis equipment 200 in step S240, the main CPU 110 of the small cell AP 100 receives the operation state parameter data from the state data memory 140 And transmitting the status parameter to the measurement and analysis equipment 200,

S270: If the step of requesting the operation status parameters of the small-cell AP 100 from the measuring and analyzing apparatus 200 continues, repeating the operation from step S260 again,

S280: When the operation state parameter request is completed from the measurement and analysis equipment 200, the main CPU 110 of the small-cell AP 100 searches the other measurement and analysis equipment 200 ) Is performed.

S290: In step S280, if there is no other measurement and analysis equipment 200 connected to the current small cell AP 100, the wireless monitoring of the small cell AP 100 is terminated and the flow returns to the main routine.

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S230: If there is another measurement and analysis equipment 200 connected to the current small-cell AP 100 in step S220, the main CPU 110 of the small-cell AP 100 transmits a priority table 145 Determining the priorities of the connected measurement and analysis equipments 200 and transmitting the information and priority of the connected measurement and analysis equipments 200 to the measurement and analysis equipments 200 And waits for a request for operation state parameter data from the measurement and analysis equipment 200 having a high priority.

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S250: a step (S240) of waiting for a request for operation state parameter data from the measurement and analysis equipment 200 to which the main CPU 110 of the small-cell AP 100 is connected The main CPU 110 of the small-cell AP 100 transmits that the connected measurement and analysis apparatus 200 is not valid and ends the wireless monitoring of the small-cell AP 100 (S290), and the main routine 110 Return.

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S280: Determine whether there is another measurement and analysis equipment 200 connected to the small cell AP 100. If there is another measurement and analysis equipment 200 in the small cell AP 100, 110) is repeated from step S230.

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According to the wireless monitoring system and the driving method of the small-cell AP of the present invention described above, the small-cell AP 100 that provides status data corresponding to various short- And a method of driving the measurement and analysis equipment 200 in a wireless monitoring system.

Also, according to the wireless monitoring system and the method of driving the small-cell AP of the present invention, when the small-cell AP 100 receives a deadlock or a stack overflow, And provides a configuration and a driving method of a small-sized cell AP that can provide operation state parameters by allowing an interrupt routine to be performed by the main CPU of the small-cell AP 100 even when it is impossible.

Although the wireless monitoring system and the driving method of the small-cell AP of the present invention described above have been described with reference to the limited embodiments and drawings, the present invention is not limited thereto, It will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the present invention as defined by the appended claims.

100: Small cell AP 110: Main CPU
120: uplink / downlink interface 130: system memory
140: Status data memory 145: Priority table
150: I / O port 160: WiFi module
170: Bluetooth module 180: Position module
200: Measurement and analysis equipment

Claims (8)

A main CPU 110 for performing overall control of the small-cell AP 100; A system memory 130 for storing firmware for driving the main CPU 110; And an uplink / downlink interface (120) driven by the main CPU (110) to connect the small cell AP (100) to the user terminals (UEs) and the core network As a result,
A state data memory (140) for storing state data of the small cell AP (100) by the main CPU (110);
An input / output port 150 connected to two or more near-field wireless transmitting / receiving means to connect with the measurement and analysis equipment 200 and to provide information of the status data memory 140 as operating condition parameters;
The connection priority order of the measurement and analysis equipment 200 connected through the short-range wireless transmission / reception means is stored. The priorities are assigned to the short-range wireless transmission / reception means connected to the input / output port 150, A priority table 145 allocated and stored by the measurement and analysis equipment 200 and referred to by the main CPU 110;
The wireless monitoring system of the small-cell AP
delete delete A main CPU 110 for performing overall control of the small-cell AP 100; A system memory 130 for storing firmware for driving the main CPU 110; And an uplink / downlink interface (120) driven by the main CPU (110) to connect the small cell AP (100) to the user terminals (UEs) and the core network In the driving method,

S100: The wireless monitoring of the small cell AP is started by the measurement and analysis equipment 200;
- S110: scanning the measurement and analysis equipment 200 to determine whether there is an available short range wireless transmitting / receiving means of an adjacent small cell AP;
In step S120, if the available short range wireless transmitting / receiving means does not exist in step S110, the measurement and analysis equipment 200 determines whether or not the available short range wireless transmitting / Reports that there is no transmitting / receiving means and terminates the wireless monitoring of the small-cell AP (S160)
S130: a step in which the measurement and analysis equipment 200 is connected to the small-sized cell AP when the available short-range wireless transmission / reception means is detected in step S110, in which the available short-range wireless transmission / reception means of the adjacent small- Lt; / RTI &
S140: Next, the measurement and analysis apparatus 200 connected to the small-cell AP 100 requests, receives, and processes operation state parameters stored in the state data memory 140 of the small-cell AP 100; Lt; / RTI >
- S150: Repeating the operation status parameters of the small-cell AP 100 from the measurement and analysis apparatus 200 when the step of requesting, receiving, and processing operation continues, starting from step S140;
- S160: terminating the wireless monitoring of the small-cell AP when the step of requesting, receiving and processing the operating state parameters of the small-cell AP 100 from the measuring and analyzing apparatus 200 is completed;
A method of driving a wireless monitoring system of a small-cell AP
A main CPU 110 for performing overall control of the small-cell AP 100; A system memory 130 for storing firmware for driving the main CPU 110; And an uplink / downlink interface (120) driven by the main CPU (110) to connect the small cell AP (100) to the user terminals (UEs) and the core network In the driving method,

S200: the wireless monitoring of the small-cell AP 100 is started;
S210: connecting the measurement and analysis equipment 200, which has started an interrupt operation as a request for connection to the main CPU 110 of the small cell AP 100, to the small cell AP through the corresponding short-range wireless communication channel ;
S220: Next, the main CPU 110 of the small-cell AP 100 performs a step of determining whether there is another measurement and analysis apparatus 200 connected to the small-cell AP 100,
S240: If there is no other measurement and analysis equipment 200 connected to the current small-cell AP 100 in step S220, the main CPU 110 of the small-cell AP 100 transmits the measurement and analysis Waiting for a request for operating status parameter data from the device 200,
S260: When the operation state parameter data request is received from the connected measurement and analysis equipment 200 in step S240, the main CPU 110 of the small cell AP 100 receives the operation state parameter data from the state data memory 140 And transmitting the status parameter to the measurement and analysis equipment 200,
S270: If the step of requesting the operation status parameters of the small-cell AP 100 from the measurement and analysis apparatus 200 continues, repeating the operation from the step S260 again,
S280: When the operation state parameter request is completed from the measurement and analysis equipment 200, the main CPU 110 of the small-cell AP 100 searches the other measurement and analysis equipment 200 ) Is performed,
S290: In the step S280, if there is no other measurement and analysis equipment 200 connected to the small cell AP 100, the process of terminating the wireless monitoring of the small cell AP 100 and returning to the main routine A method of driving a wireless monitoring system of a small-cell AP
6. The method of claim 5, wherein in step S220,
The main CPU 110 of the small cell AP 100 refers to the priority table 145 to determine whether the connected measurement and analysis apparatus 200 is connected to the small cell AP 100. [ (S230) of determining the priority of the devices 200 and transmitting the information and priority of the connected measurement and analysis equipments 200 to the measurement and analysis equipments 200, (S240): a step of waiting for a request for operation state parameter data from the high measurement and analysis equipment (200). The method for driving a wireless monitoring system of a small-cell AP
6. The method of claim 5, wherein in step S240,
The main CPU 110 of the small cell AP 100 transmits (S250) that the connected measurement and analysis equipment 200 is not valid, and the small cell AP 100 (S290); and returning to the main routine. The wireless monitoring system of the small-cell AP
6. The method of claim 5, wherein in step S280,
And the main CPU 110 of the small cell AP 100 is configured to repeat the process from step S230 if the other measurement and analysis equipment 200 is present.

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