KR101779050B1 - Apparatus and method for repeater control - Google Patents
Apparatus and method for repeater control Download PDFInfo
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- KR101779050B1 KR101779050B1 KR1020150143753A KR20150143753A KR101779050B1 KR 101779050 B1 KR101779050 B1 KR 101779050B1 KR 1020150143753 A KR1020150143753 A KR 1020150143753A KR 20150143753 A KR20150143753 A KR 20150143753A KR 101779050 B1 KR101779050 B1 KR 101779050B1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/40—Monitoring; Testing of relay systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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Abstract
The method includes a step of storing specific terminal information and repeater information matched with the specific terminal, an Evolved Cell Global Identifier (ECGI) and a reference signal received power (RSRP) from a specific terminal Receiving the response signal, comparing the received cell identification information with the stored repeater information, and comparing the reference signal received power with a predetermined threshold according to the comparison result.
Description
The present invention relates to a repeater management apparatus and method thereof, and more particularly, to a repeater management apparatus and method thereof, and more particularly, to a repeater management apparatus and method thereof, which is capable of eliminating constraint and cost efficiency problems of a module by incorporating a Location Based Service (LBS) And more particularly, to a method and an apparatus that can be used.
As the number of subscribers of mobile telecommunication service has increased explosively, there has been a great increase in the demand for the expansion of the corresponding service area and the elimination of the radio wave shadow area. In response to this, the telecommunication service provider tries to solve the problem by constructing a base station or installing a repeater in the service area and the shaded area. In particular, in order to provide effective services for small-scale shaded areas such as a building or an underground space, a plurality of miniature repeaters differentiated from each other are installed in the corresponding shaded areas.
The miniature repeater is very small in size and consumes less power. Generally, the output of a miniature repeater is often less than or equal to 13 dBm. Low-power miniature repeaters are small, low-cost, and easy to install. Instead, they have low gain and low output power, which can be used primarily to resolve shaded areas in small spaces.
In order to continuously provide optimum quality of communication to a subscriber in a wireless communication network, maintenance of the system constituting the network (i.e., base station and repeater, etc.) must be continuously performed. The base station installs a separate management system, and the management system can analyze the collected information through dedicated lines connected to the base station and the control device. However, in the case of the repeater, unlike the base station system, it is not easy to secure a dedicated line in the relay period between the base station and the base station, so that a repeater function monitoring device is attached to the main block of the repeater and a communication device such as a wired modem is attached to the repeater Can be collected.
It is required to collect information for management and supervision of repeaters, and to install a communication device for transmitting information to the upper monitoring equipment. However, the method of collecting management information through a communication device separately installed in the repeater requires a small class (19 dBm) The present invention is applied to a repeater having When an expensive communication device is attached to a miniature repeater, the merits of the miniature repeater including the small size and low price are reduced, which is ineffective.
The present invention can provide an apparatus and a method for using data for a location based service (LBS) of a terminal for quality control of a miniature repeater without installing a separate communication device in the miniature repeater.
Also, the present invention provides a device and method for monitoring the operation of a micro-repeater remotely by using data required for a location-based service (LBS), without checking the area where the micro-repeater is installed, .
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not restrictive of the invention, unless further departing from the spirit and scope of the invention as defined by the appended claims. It will be possible.
The present invention can provide a method and apparatus that can overcome the technical limitations of a micro-sized repeater and increase cost efficiency.
A method of managing a repeater according to an exemplary embodiment of the present invention includes: storing specific terminal information and repeater information matched with the specific terminal; receiving an Evolved Cell Global Identifier (ECGI) Receiving a response signal including a reference signal received power (RSRP), comparing the received cell identification information with the stored repeater information, and comparing the received signal received power with a predetermined threshold according to the comparison result .
In addition, the specific terminal information and the repeater information may include a unique number of the specific terminal and an ID of the repeater and cell identification information when the repeater is installed.
In addition, when the comparison result of the received cell identification information and the stored repeater information does not match, the reference signal reception power and the threshold value may not be compared.
The repeater management method further includes the steps of: determining whether the received signal strength of the reference signal is less than the threshold if the received cell identification information matches the stored repeater information; And determining that the quality of the repeater is defective when the reference signal received power is less than the threshold value.
In addition, when the reference signal reception power is less than the threshold value, the step of determining the quality of the repeater to be defective may include counting the number of the response signals having the reference signal reception power less than the threshold value. And determining that the quality of the repeater is bad if the counted number exceeds the first number of thresholds.
In addition, when the reference signal reception power is less than the threshold value, the step of determining the quality of the repeater to be defective may include counting the number of the response signals having the reference signal reception power less than the threshold value. And if the counted number is less than the second number of thresholds, initializing the counted number.
The response signal may correspond to a location-based service signal transmitted from the core network.
A core network communication apparatus for managing a repeater according to another embodiment of the present invention is a communication system interworking with a plurality of base stations and a plurality of repeaters, the apparatus comprising: a device management server for storing specific terminal information and repeater information matched with the specific terminal; And receiving a response signal including an Evolved Cell Global Identifier (ECGI) and a reference signal received power (RSRP) from the specific terminal and transmitting the received cell identification information and the stored repeater information And a database management server for comparing the reference signal received power with a predetermined threshold according to the comparison result.
In addition, the specific terminal information and the repeater information may include a unique number of the specific terminal and an ID of the repeater and cell identification information when the repeater is installed.
The database management server may not compare the reference signal reception power with the threshold value when the comparison result between the received cell identification information and the stored repeater information does not match.
In addition, the database management server may check whether the reference signal reception power is less than the threshold value when the comparison result of the received cell identification information and the stored repeater information match, and if the reference signal reception power is less than the threshold, The quality of the repeater can be judged to be defective.
When the reference signal reception power is less than the threshold value, the database management server counts the number of the response signals having the reference signal reception power less than the threshold value as the quality of the relay, The quality of the repeater can be judged to be defective when the number of times of the repeater exceeds the first number threshold.
When the reference signal reception power is less than the threshold value, the database management server counts the number of the response signals having the reference signal reception power lower than the threshold value to determine that the quality of the relay device is bad, Number of times is less than the second number of times threshold, the counted number can be initialized.
Also, the core network communication device for managing the repeater may further include a location-based service server for providing the location-based service signal to the specific terminal, and the response signal may correspond to the location-based service signal transmitted from the core network.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And can be understood and understood.
Effects of the method and apparatus according to the present invention will be described as follows.
The present invention can confirm whether a repeater is operating normally by utilizing a location-based service (LBS) for a miniature repeater in which a separate communication module for supervision and supervision is not installed, thereby adding a communication module for management supervision to the miniature repeater It is possible to eliminate the necessity of mounting, thereby reducing the cost of the apparatus.
In addition, the present invention can enable low-cost quality monitoring for a micro-sized repeater having an output of 13 dBm or less.
The effects obtainable by the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the following description.
BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention. It is to be understood, however, that the technical features of the present invention are not limited to the specific drawings, and the features disclosed in the drawings may be combined with each other to constitute a new embodiment.
1 illustrates a repeater management method.
2 illustrates a repeater management apparatus.
3 illustrates information collected by the core network communication device for managing the repeater.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an apparatus and various methods to which embodiments of the present invention are applied will be described in detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.
In the description of the embodiments, when it is described as being formed on the "upper" or "lower" of each element, the upper or lower (lower) And that at least one further component is formed and arranged between the two components. Also, the expression "upward" or "downward" may include not only an upward direction but also a downward direction on the basis of one component.
1 illustrates a repeater management method.
As shown in the figure, the repeater management method includes a step (12) of storing specific terminal information and repeater information matched with a specific terminal, a step of receiving, from a specific terminal, an Evolved Cell Global Identifier (ECGI) (14) receiving a response signal including received power (RSRP), comparing the received cell identification information with stored repeater information (16), and comparing the received signal power of the reference signal with a predetermined threshold (Step 18). Here, the specific terminal information and the repeater information may include the ID of the repeater, the cell identification information, and the unique number of the specific terminal when the repeater is installed.
For example, when the comparison result between the received cell identification information and the stored repeater information does not match, the reference signal reception power and the predetermined threshold value may not be compared.
The repeater management method further includes the steps of: if the received cell identification information matches the stored repeater information, the repeater management method further comprising the steps of: determining whether the reference signal received power is below a threshold; As shown in FIG.
In addition, when the reference signal reception power is less than the threshold value, the step of judging the quality of the repeater to be defective may include the steps of counting the number of response signals with the reference signal reception power lower than the threshold value and counting the number of times that the counted number exceeds the first number threshold The quality of the repeater may be determined to be defective.
In addition, when the reference signal reception power is less than the threshold value, the step of determining that the quality of the repeater is defective may include the steps of counting the number of the response signals with the reference signal reception power lower than the threshold value, and if the counted number is less than the second number threshold , And initializing the counted number of times. Here, the second number threshold may be less than the first number threshold.
Meanwhile, the response signal may correspond to the location-based service signal transmitted from the core network.
For example, it is possible to store the repeater information including the specific number of the specific terminal and the cell identifier (ECGI), the ID of the repeater, the installation location and the installation time when the repeater is installed, Can be updated. In addition, the cell identification information may be identification information (ECGI) of the corresponding cell when the repeater is installed. For example, the cell identification information included in the repeater information may be the identification information of the cell that is the subject of the failure determination through the specific terminal. In addition, the information about the location where the repeater is installed and the installed time can be collected and stored. At this time, the installation location may include latitude and longitude information synchronized between the terminal and the GPS when the repeater is installed.
A server for providing location-based services to a core network (core network) may store specific terminal information and repeater information matched with a specific terminal (12). At this time, the specific terminal may transmit a response signal to the core network in response to the location-based service signal (14). At this time, the response signal may include cell identification information (ECGI) and reference signal reception power (RSRP). For example, the reference signal received power (RSRP) may be information received from a portable terminal that cooperates with a repeater. At this time, the portable terminal may be a portable device used by a user, a subscriber, or the like for wireless data communication purposes, or may be a portable device used by a manager who manages a repeater or the like.
In the core network, the cell identification information (ECGI) included in the response signal and the stored repeater information can be compared (16). If the comparison result does not match, it is possible to stop the quality determination for the repeater that transmitted the response signal including the cell identification information (ECGI). For example, when the comparison result does not match, the cell corresponding to the cell identification information included in the response signal is not a cell to be determined as a failure through the specific terminal, The reference signal reception power and the threshold value may not be compared.
If the cell identification information (ECGI) included in the response signal matches the stored repeater information, the cell corresponding to the cell identification information included in the response signal may correspond to a cell to be determined as a failure. The core network can compare the reference signal received power (RSRP) to a predetermined threshold (18). If the comparison result is identical, it is confirmed whether the reference signal received power RSRP is lower than the threshold value, and if the reference signal received power RSRP is lower than the threshold value, the quality of the repeater can be judged as bad.
To ensure the quality of the repeater, the core network may use multiple response signals. Specifically, the server providing the location-based service in the core network can transmit the location-based service signal to the repeater according to the set period considering the load of the core network equipment.
The core network analyzes the response signal corresponding to the location based service signal and analyzes the response signal corresponding to the next location based service signal when it is determined that the relay does not operate normally or the quality is bad. Even when the repeater is not defective, there may be a cause that the RSRP transmitted from the repeater may be lower than the threshold value. Therefore, if the quality of the repeater is confirmed for a plurality of response signals corresponding to the predetermined number of location-based service signals, the core network can more accurately determine the quality of the repeater.
For example, the quality of the repeater can be determined by repeatedly transmitting the location-based service signal at predetermined time intervals and receiving a plurality of response signals corresponding thereto.
According to an embodiment, even if the relay station is not defective due to a problem in the system, the reference signal reception power may be lower than a preset threshold value. Therefore, among the plurality of response signals, the reference signal reception power lower than the predetermined threshold value is included The number of times of reception of the response signal is counted, and if the number of times exceeds the first threshold value, the repeater may be determined as defective. At this time, the number of times may be counted for a preset time.
According to an embodiment, if the number of times a response signal including a reference signal reception power less than a predetermined threshold is received for a preset time for counting is less than a second number threshold, the relay determines that the relay is normal, Can be initialized. That is, when the response signal including the reference signal reception power of a predetermined threshold value or more is received a predetermined number of times or more, the repeater can be judged to be normal.
2 illustrates a repeater management apparatus.
As shown in the figure, the core
The core
The core
The location-based
The
The
In addition, when the comparison result of the stored cell identification information and the stored repeater information match, the
When the reference signal reception power is less than the threshold value, the
When the reference signal reception power is less than the threshold value, the database management server counts the number of response signals whose reference signal reception power is less than the threshold value in determining that the quality of the repeater is defective. If the counted number is a second number If it is less than the threshold value, the counted number can be initialized.
For example, the location-based
According to an embodiment, even if the relay station is not defective due to a problem of the system, the reference signal reception power may be lower than a predetermined threshold value. Therefore, the reference signal reception power lower than the preset threshold value among the plurality of response signals is included The number of times of reception of the response signal is counted, and if the number of times exceeds the first threshold value, the repeater may be determined as defective. The number of times can be counted for a preset time.
According to an embodiment, if the number of times a response signal including a reference signal reception power less than a predetermined threshold is received for a preset time for counting is less than a second number threshold, the relay determines that the relay is normal, Can be initialized. In addition, when the response signal including the reference signal reception power equal to or higher than the preset threshold value is received over the third threshold value, the repeater can be determined as normal. Here, the second count threshold or the third count threshold may correspond to a preset number of times.
3 illustrates information collected by the core network communication device for managing the repeater. Specifically, (a) illustrates an example of information collected by the location-based service server 24 (see FIG. 2), (b) illustrates an example of information collected by the
Referring to FIG. 3A, the information collected by the location-based
3B, the information collected by the
The method according to the above-described embodiments may be implemented as a program to be executed by a computer and stored in a computer-readable recording medium. Examples of the computer-readable recording medium include a ROM, a RAM, a CD- , A floppy disk, an optical data storage device, and the like, and may also be implemented in the form of a carrier wave (for example, transmission over the Internet).
The computer readable recording medium may be distributed over a networked computer system so that computer readable code can be stored and executed in a distributed manner. And, functional program, code, and code segments for implementing the above-described method can be easily inferred by programmers in the technical field to which the embodiment belongs.
It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.
Accordingly, the above description should not be construed in a limiting sense in all respects and should be considered illustrative. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention.
20: Core network communication device for managing repeaters
22: Mobility Management Entity (MME) device
24: Location Based Services (LBS) Server
26: Device Management Server
28: Database Management Server
30: base station 34: repeater
38: Portable terminal
Claims (14)
Based service signal that is repeatedly transmitted from the location-based service server in units of a predetermined time and that receives a location-based service signal for providing an information service related to the location of the specific terminal, cell identification information Evolved Receiving a response signal including a Cell Global Identifier (ECGI) and a reference signal received power (RSRP) through the repeater;
The database management server comparing the received cell identification information with the stored information of the repeater; And
Comparing the reference signal received power with a predetermined threshold according to a result of the comparison
The repeater management method comprising:
The information of the specific terminal and the information of the repeater are
A unique number of the specific terminal, cell identification information when the repeater is installed, and an ID of the repeater.
And does not compare the reference signal received power with the threshold value when the result of the comparison of the received cell identification information and the stored information of the repeater does not match.
When the comparison result of the received cell identification information is compared with the stored information of the repeater,
Determining whether the reference signal reception power is less than the threshold; And
Determining that the quality of the repeater is bad if the reference signal received power is less than the threshold;
The repeater management method further comprising:
And determining that the quality of the repeater is defective when the reference signal reception power is less than the threshold value
Counting the number of times the response signal has the reference signal reception power less than the threshold value; And
Determining that the quality of the repeater is bad if the counted number exceeds the first number of thresholds
The repeater management method comprising:
And determining that the quality of the repeater is defective when the reference signal reception power is less than the threshold value
Counting the number of times the response signal has the reference signal reception power less than the threshold value; And
If the counted number is less than a second number of thresholds, initializing the counted number
The repeater management method comprising:
A device management server for storing specific terminal information and repeater information matched with the specific terminal;
A location-based service server that repeatedly transmits a location-based service signal providing an information service related to the location of the specific terminal to the specific terminal on a predetermined time basis; And
And receives a response signal including an Evolved Cell Global Identifier (ECGI) and a reference signal received power (RSRP) transmitted from the specific terminal through the location-based service signal, Comparing the identification information with the stored repeater information and comparing the reference signal received power with a predetermined threshold according to the comparison result,
And a core network communication device for managing the repeater.
The specific terminal information and the repeater information
A unique identification number of the specific terminal, cell identification information when the repeater is installed, and an ID of the repeater.
The database management server
And does not compare the reference signal received power with the threshold value when the comparison result of the received cell identification information and the stored repeater information does not match.
The database management server
When the comparison result of the received cell identification information and the stored repeater information match,
And if the reference signal received power is less than the threshold,
And determines that the quality of the repeater is defective when the reference signal reception power is less than the threshold value.
The database management server
And when the reference signal reception power is less than the threshold value, determining that the quality of the repeater is bad,
Counts the number of times of the response signals in which the reference signal reception power is less than the threshold value,
And determines that the quality of the repeater is bad if the counted number exceeds the first number of thresholds.
The database management server
When the reference signal reception power is less than the threshold value, in order to judge that the quality of the repeater is bad,
Counts the number of times of the response signals in which the reference signal reception power is less than the threshold value,
And initializes the counted number when the counted number is less than the second number of thresholds.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100762703B1 (en) * | 2006-08-28 | 2007-10-01 | 에스케이 텔레콤주식회사 | System and method for monitoring repeater |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100762703B1 (en) * | 2006-08-28 | 2007-10-01 | 에스케이 텔레콤주식회사 | System and method for monitoring repeater |
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