JP2006211271A - Base station equipment, abnormality judging section and control station equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To judge whether an abnormality exists in base station equipment or not with high precision. <P>SOLUTION: The base station equipment comprises a section 12-1 for measuring a plurality of kinds of communication quality per unit time for each terminal, and a section 12-3 for judging that the base station equipment 10 is not abnormal if the average value of at least two kinds of communication quality out of the plurality of kinds of communication quality measured at the communication quality measuring section 12-1 does not exceed a first reference value. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a base station device that performs wireless communication between a plurality of terminals and a base station device, a control station device connected to each of the base station devices, and an abnormality determination method.

Conventionally, an apparatus for determining whether or not a base station apparatus is abnormal has been proposed (see, for example, Patent Document 1). Specifically, the base station device calculates a communication quality value in unit time between the terminal and the base station device, and determines whether the base station device is abnormal based on the calculated communication quality value. Yes. For example, the base station apparatus uses the number of incoming calls from the terminal to the base station apparatus per unit time or the number of calls from the base station apparatus to the terminal per unit time as the communication quality value, and the communication quality value exceeds a predetermined value. If so, it is determined that the base station apparatus is abnormal.
JP 2002-124911 A

  However, even if no abnormality occurs in the base station apparatus, if the transmission performance of the terminal itself is inferior to other terminals, or the environment in which wireless communication is performed between the terminal and the base station apparatus is another environment. When the number of incoming calls or outgoing calls per unit time may exceed a predetermined value, the base station apparatus may erroneously determine that the base station apparatus itself is abnormal. It was.

  Therefore, the present invention has been made in view of the above points, and each of a base station apparatus, an abnormality determination method, and a base station apparatus that can determine with high accuracy whether or not there is an abnormality in the base station apparatus. It aims at providing the control station apparatus connected to.

  In order to solve the above problems, the present invention provides a communication quality value measuring unit that measures a plurality of types of communication quality values per unit time for each terminal, and at least one of a plurality of types measured by the communication quality value measuring unit. And an abnormality determination unit that determines that the base station apparatus is not abnormal when the average value of the two or more types of communication quality values does not exceed the first reference value.

  According to the present invention, the base station apparatus determines that the base station apparatus is not abnormal when the average value of at least two or more of the plurality of types of communication quality values does not exceed the first reference value. The station device considers not only a single type of communication quality value but also a plurality of types of communication quality values, and determines whether or not an abnormality has occurred in the base station device itself. Whether or not there is can be determined with high accuracy.

  In the above invention, the abnormality determination means includes the number of first terminals belonging to the predetermined range when the predetermined type of communication quality value belongs to the predetermined range among the plurality of types of communication quality values measured by the communication quality value measuring means. Is over the second reference value and the average value of the communication quality values of the first terminal other than the predetermined type does not exceed the third reference value, it is determined that the base station device is not abnormal. Also good.

  In this case, even if the number of the first terminals belonging to the predetermined range exceeds the second reference value, the average value of the communication quality values of types other than the predetermined type of the first terminal exceeds the third reference value. If not, the base station apparatus determines that the base station apparatus itself is not abnormal, so that the base station apparatus uniquely determines that the number of first terminals belonging to the predetermined range exceeds the second reference value. Since it is not determined that the base station apparatus itself is abnormal, it is possible to determine with high accuracy whether or not the base station apparatus itself is abnormal.

  In the above invention, the abnormality determining means has a number of first terminals when there is a first terminal exceeding the third reference value and there is a first terminal having a predetermined type of communication quality value within a predetermined range. When the fourth reference value is exceeded and the average value of the communication quality values of the first terminal other than the predetermined type exceeds the fifth reference value, it is determined that the first terminal is abnormal and the base station apparatus It may be determined that is not abnormal.

  Here, when there is a first terminal exceeding the third reference value, there is a problem in the transmission performance of the first terminal itself, or the communication environment in which the first terminal is located is deteriorated. The communication quality value of the first terminal may be deteriorated. In this case, on the assumption that there are a plurality of first terminals exceeding the third reference value, the number of the first terminals exceeds the fourth reference value, and the first terminal is in a type other than the predetermined type. When the average value of the communication quality values exceeds the fifth reference value, the communication quality value of the first terminal is clearly degraded, and there is a problem in the transmission performance of the first terminal itself, Since it becomes clearer that the communication environment in which the first terminal is located is deteriorated, the base station apparatus determines that the base station apparatus itself is abnormal due to the deterioration of the communication quality value of the first terminal. Instead, by determining that the first terminal itself is abnormal in the first place, it is possible to determine with high accuracy whether or not the base station device itself is abnormal.

  In the above invention, the communication quality value measuring means has the number of the first terminals exceeding the fourth reference value, and the average value of the communication quality values in types other than the predetermined type of the first terminal exceeds the fifth reference value. If there is, the communication quality value of each terminal other than the first terminal is measured again, and the abnormality determination means is a predetermined type of communication among the plurality of kinds of communication quality values measured again by the communication quality value measurement means. When the quality value belongs to the predetermined range, the number of second terminals belonging to the predetermined range exceeds the second reference value, and the average value of the communication quality values of the second terminal other than the predetermined type is the first value. When it exceeds 3 reference values, it may be determined that the base station apparatus is abnormal.

  Here, on the assumption that there are a plurality of first terminals exceeding the third reference value, the number of first terminals further exceeds the fourth reference value, and the communication quality value of a type other than the predetermined type of the first terminal When the average value exceeds the fifth reference value, the communication quality value of the first terminal is more clearly degraded, and there is a problem with the transmission performance of the first terminal itself, It is also clearer that the communication environment where is located is degraded. For this reason, the base station apparatus measures the communication quality value of each terminal other than the first terminal again, and determines again whether the base station apparatus itself has an abnormality, thereby degrading the communication quality value. Therefore, it is not necessary to consider the first terminal that greatly affects the base station apparatus, so it is possible to determine with high accuracy whether or not the base station apparatus itself is abnormal.

  The present invention is a control station apparatus connected to each of base station apparatuses provided with communication quality value measuring means for measuring a communication quality value per unit time for each terminal, from the first base station apparatus to the second base station. If the communication quality value of the specific terminal measured by the first base station apparatus and the second base station apparatus exceeds the reference value when the communication path of the specific terminal is changed to the apparatus, the specific terminal is abnormal. It is determined that it exists.

  According to the present invention, the specific terminal measured by the first base station apparatus and the second base station apparatus when the communication path of the specific terminal is changed from the first base station apparatus to the second base station apparatus. If the communication quality value exceeds the reference value, the control station apparatus determines that the specific terminal has an abnormality, so that the control station apparatus can communicate with the specific terminal measured by only one base station apparatus. Whether or not there is an abnormality in the specific terminal in consideration of the communication quality value of the specific terminal measured by a plurality of base station devices, rather than determining whether or not there is an abnormality in the specific terminal uniquely using the quality value Since it is determined whether or not there is an abnormality in the specific terminal, it can be determined with high accuracy.

  The present invention is a control station apparatus connected to each of base station apparatuses provided with communication quality value measuring means for measuring a communication quality value per unit time for each terminal, from the first base station apparatus to the second base station. When the communication path of the specific terminal to the device is changed, the communication quality value of the specific terminal measured by one of the first base station device and the second base station device exceeds a reference value, and the first base station When the communication quality value of the specific terminal measured by the other of the apparatus and the second base station apparatus does not exceed the reference value, it is determined that one of the base station apparatuses is abnormal.

  According to the present invention, when the communication path of the specific terminal is changed from the first base station apparatus to the second base station apparatus, the measurement is performed by one of the first base station apparatus and the second base station apparatus. When the communication quality value of the specific terminal exceeds the reference value, and the communication quality value of the specific terminal measured by the other of the first base station apparatus and the second base station apparatus does not exceed the reference value By determining that one of the base station devices is abnormal, the control station device is uniquely abnormal to the one base station device using the communication quality value of the specific terminal measured by the one base station device. In order to determine whether there is an abnormality in the one base station device in consideration of the communication quality value of the specific terminal measured by a plurality of base station devices, It is possible to determine with high accuracy whether there is an abnormality in the station equipment. .

  ADVANTAGE OF THE INVENTION According to this invention, it can be determined with high precision whether there is abnormality in a base station apparatus.

(First embodiment)
A base station apparatus according to the present embodiment will be described with reference to the drawings. FIG. 1 is a diagram illustrating a base station device 10 and a plurality of terminals 20 in the present embodiment. As shown in FIG. 1, the base station device 10 is connected to a plurality of terminals 20 (20a, 20b, 20c...), And includes a transmission / reception unit 11 and a determination unit 12.

  The determination unit 12 includes a communication quality value measurement unit 12-1, a communication quality value storage unit 12-2, an abnormality determination unit 12-3, and an output unit 12-4. The communication quality value measuring unit 12-1 is a communication quality value measuring unit that measures a plurality of types of communication quality values per unit time for each terminal. Here, the communication quality value per unit time includes the average value of the received power value per unit time of the signal received by the transmission / reception unit 11 and the signal frame in the radio channel between the base station apparatus 10 and the terminal 20. The number of errors per unit time (hereinafter referred to as FER number), the number of incoming calls from the terminal 20 to the base station apparatus 10 per unit time, the number of calls from the base station apparatus 10 to the terminal 20 per unit time, etc. include.

  The communication quality value storage unit 12-2 stores a plurality of types of communication quality values measured by the communication quality value measurement unit 12-1 for each terminal ID. FIG. 2 is a diagram illustrating communication quality values stored in the communication quality value storage unit 12-2. In addition, terminal ID-20a shown in FIG. 2 shows terminal ID for specifying the terminal 20a, and terminal ID-20b shows terminal ID for specifying the terminal 20b. The same applies to other terminal IDs.

  As shown in FIG. 2, the communication quality value in this embodiment is an average value (hereinafter referred to as an average received power value) of received power values per unit time (here, 1 minute, the same shall apply hereinafter), a correct signal. The average value per unit time of reception modulation accuracy (hereinafter referred to as average reception modulation accuracy) indicating the effective value of the error between the point vector and the signal point vector after demodulation at the time of reception, and the number of FERs per unit time. When the average received power value decreases, the average received modulation accuracy deteriorates and the FER number increases accordingly. On the other hand, when the average received power value increases, the average received modulation accuracy is unlikely to deteriorate, and the FER number decreases accordingly. As described above, the communication quality values of the average received power value, the average reception modulation accuracy, and the number of FERs are closely related to each other, and the abnormality determination unit 12-3 uses these communication quality values to achieve high accuracy. It is possible to determine whether or not the base station apparatus 10 is abnormal.

  In the present embodiment, the communication quality value is the average value of the received power value per unit time, the average value of the reception modulation accuracy, and the average value of the number of FERs. The received power value or the instantaneous value / maximum value of the reception modulation accuracy may be used. The communication quality value is sequentially stored for each unit time (see “number” shown in FIG. 2).

  If the average value of at least two or more of the plurality of types measured by the communication quality value measuring unit 12-1 does not exceed the first reference value, the abnormality determining unit 12-3 It is an abnormality determination means for determining that the apparatus 10 is not abnormal. For example, when the plurality of types of communication quality values are the average received power value and the average received modulation accuracy shown in FIG. 2, the abnormality determination unit 12-3 determines the average received power value and average received for each terminal at a predetermined timing. The base station apparatus 10 is not abnormal when the modulation accuracy is accumulated and each average value obtained by dividing the accumulated average received power value and the average received modulation accuracy by the number of terminals does not exceed the first reference value. judge.

  The output unit 12-4 outputs the result determined by the abnormality determination unit 12-3. For example, when the abnormality determining unit 12-3 determines that the base station device 10 is abnormal, the output unit 12-4 outputs a message to that effect by an alarm or the like.

  According to the present invention as described above, by determining that the base station apparatus 10 is not abnormal when the average value of the communication quality values of at least two or more of the plurality of types does not exceed the first reference value, The base station apparatus 10 determines whether or not an abnormality has occurred in the base station apparatus 10 in consideration of not only a single type of communication quality value but also a plurality of types of communication quality values. 10 can be determined with high accuracy.

(Second Embodiment)
The abnormality determination unit 12-3 in the present embodiment is a predetermined type of communication quality value (for example, the average received power value shown in FIG. 3) among a plurality of types of communication quality values measured by the communication quality value measurement unit 12-1. When the number belongs to a predetermined range, the number of first terminals belonging to the predetermined range exceeds the second reference value, and an average value of communication quality values in types other than the predetermined type of the first terminal (for example, FIG. If the average reception modulation accuracy shown in 3 or the average value of the FER numbers does not exceed the third reference value, it may be determined that the base station apparatus 10 is not abnormal. In addition, since it is the same as that of 1st Embodiment except the abnormality determination part 12-3 in this embodiment, detailed description is abbreviate | omitted.

  FIG. 3 shows a predetermined range of the average received power value at a predetermined timing, the number of first terminals belonging to the predetermined range, and the average reception modulation accuracy of the first terminal (one or a plurality of first terminals) belonging to the predetermined range. It is a figure which shows the average value of FER and the average value of the FER number of the 1st terminal which belongs to the said predetermined range. As shown in FIG. 3, when a predetermined type of communication quality value is an average received power value among a plurality of types of communication quality values and a communication quality value other than the predetermined type is an average reception modulation accuracy or FER number, When the received power value is less than 10, the number of first terminals belonging to an average received power value less than 10 is 205, and the average received modulation accuracy of 205 first terminals belonging to an average received power value less than 10 is 205. The average value of the FER numbers of the 205 first terminals belonging to the average received power value of less than 10 is 21.

  FIG. 4 is a diagram illustrating a predetermined range of the average received power value at a predetermined timing and the first reference value. The first reference value includes a reference terminal number (second reference value) indicating the reference number of the first terminal belonging to the predetermined range and a reference value indicating the reference value of the average reception modulation accuracy of the first terminal belonging to the predetermined range. The average reception modulation accuracy (third reference value) and the reference average FER number (third reference value) indicating the reference value of the FER number of the first terminal belonging to the predetermined range are included.

  As shown in FIGS. 3 and 4, when the predetermined range of the average received power value, which is a predetermined type of communication quality value measured by the communication quality value measuring unit 12-1, is 30 or more and less than 35, the 30 The number 35 of the first terminals belonging to less than 35 exceeds the corresponding number of reference terminals 30 (second reference number). Further, as shown in FIGS. 3 and 4, the average value 11.1 of the average reception modulation accuracy of 35 first terminals belonging to a predetermined range of 30 to 35, which is a predetermined range of the average reception power value, is a corresponding standard. The average received modulation accuracy exceeds 10 (third reference number). Further, as shown in FIG. 3 and FIG. 4, the average value 33 of the FER numbers of the 35 first terminals belonging to the predetermined range of the average received power value of 30 or more and less than 35 is the reference average FER number of 10 corresponding thereto. (Third reference value) is exceeded.

  Therefore, the number 30 of the first terminals belonging to the predetermined range of the average received power value of 30 or more and less than 35 exceeds the reference terminal number (second reference value), and the 35 first items belonging to the range of 30 to less than 35 are included. The average value of the average reception modulation accuracy of the terminal is the reference average reception modulation accuracy (third reference value), or the average value of the FER numbers of the 35 first terminals belonging to 30 to less than 35 is the reference average FER number (third Therefore, the abnormality determination unit 12-3 determines that the base station device 10 is abnormal.

  Further, although the number of first terminals belonging to the predetermined range of the average received power value exceeds the reference terminal number (second reference value), the average of the first terminals belonging to any of the predetermined ranges of the average received power value The average value of the reception modulation accuracy is the reference average reception modulation accuracy (third reference value), or the average value of the FER numbers of the first terminals belonging to either the predetermined range of the average reception power value is the reference average FER number (third When the reference value is not exceeded, the abnormality determination unit 12-3 determines that the base station apparatus 10 is not abnormal. Further, when the number of first terminals belonging to any of the predetermined ranges of the average received power value does not exceed the reference terminal number (second reference value), the abnormality determination unit 12-3 determines that the base station device 10 Judge that it is not abnormal.

  Hereinafter, the abnormality determination method 1 in the present embodiment will be described with reference to the drawings. FIG. 5 is a diagram showing an abnormality determination method 1 in the present embodiment. As shown in FIG. 5, in S10, the communication quality value measuring unit 12-1 measures a plurality of types of communication quality values per unit time for each terminal (see FIG. 2). In S11, the abnormality determination unit 12-3 determines whether or not the number of first terminals belonging to any of the predetermined ranges of the average received power value exceeds the reference terminal number (second reference value). In addition, the abnormality determination unit 12-3 proceeds to the process of S12 when the number of first terminals belonging to any of the predetermined ranges of the average received power value exceeds the reference terminal number (second reference value), When the number of first terminals belonging to any of the predetermined ranges of the average received power value does not exceed the reference terminal number (second reference value), the process proceeds to S14.

  In S12, the abnormality determination unit 12-3 determines that the average value of the average reception modulation accuracy of the first terminal exceeding the reference terminal number (second reference value) is the reference average reception modulation accuracy (third reference value), or the reference It is determined whether the average value of the FER number of the first terminal exceeding the number of terminals (second reference value) exceeds the reference average FER number (third reference value). In addition, the abnormality determination unit 12-3 determines that the average value of the average reception modulation accuracy of the first terminal exceeds the reference average reception modulation accuracy (third reference value), or the average of the FER numbers of the first terminal. If the value exceeds the reference average FER number (third reference value), the process proceeds to S13 (see the hatched portion shown in FIG. 3), and the average value of the average reception modulation accuracy of the first terminal is the reference average reception. If the modulation accuracy (third reference value) is not exceeded, or if the average value of the FER number of the first terminal does not exceed the reference average FER number (third reference value), the process proceeds to S14.

  In S13, the abnormality determination unit 12-3 determines that the base station device 10 is abnormal. In S14, the abnormality determination unit 12-3 determines that the base station apparatus 10 is not abnormal.

  According to the present invention, even if the number of first terminals belonging to the predetermined range of the average received power value exceeds the reference terminal number (second reference value), the first terminal belonging to the predetermined range of the average received power value. The average value of the average reception modulation accuracy of one terminal exceeds the reference average reception modulation accuracy (third reference value), or the average value of the number of FERs of the first terminal belonging to a predetermined range of the average reception power value is the reference average If the number of FERs (third reference value) is not exceeded, the abnormality determining unit 12-3 determines that the base station device 10 itself is not abnormal, so that the base station device 10 has the first terminal belonging to the predetermined range. Since the number exceeds the number of reference terminals (second reference value), the average value of the average reception modulation accuracy of the first terminal and the average of the FER are not determined that the base station apparatus 10 is uniquely abnormal. Considering the value, there is an abnormality in the base station apparatus 10 itself To determine whether it is possible to determine an abnormality of the base station apparatus 10 itself with high precision.

  In the present embodiment, a predetermined type of communication quality value among a plurality of types of communication quality values is an average received power value, and a communication quality value other than the predetermined type is an average reception modulation accuracy or FER number. However, the present invention is not limited to this, and any one of the communication quality values may be a predetermined type of communication quality value. Further, the plurality of types of communication quality values are not limited to the average received power value, the average received modulation accuracy, and the number of FERs, and the number of incoming calls in the unit time from the terminal 20 to the base station apparatus 10 or the base station apparatus 10 It may be the number of calls from unit to terminal 20 per unit time.

(Third embodiment)
The abnormality determination unit 12-3 in the second embodiment, when there is the first terminal exceeding the reference average reception modulation accuracy (third reference value) or the reference average FER number (third reference value), Although it is determined that the station apparatus 10 is abnormal, the abnormality determination unit 12-3 in the third embodiment calculates the reference average reception modulation accuracy (third reference value) or the reference average FER number (third reference value). Even if there are more first terminals, the base station apparatus 10 is not uniquely determined to be abnormal, and the number of the first terminals belonging to any of the predetermined ranges of the average received power value is the reference terminal. The average value of the communication quality values of the first terminal other than the predetermined type is a reference average reception modulation accuracy (fifth reference value) or a reference average FER number (fifth reference value). ) Is exceeded, the first terminal is abnormal The base station apparatus 10 may be determined not to be abnormal as well as determination. Note that the fourth reference value in the present embodiment may be lower than the second reference value. The fifth reference value may be the same as or different from the third reference value. In addition, since it is the same as that of 1st Embodiment except the abnormality determination part 12-3 in this embodiment, detailed description is abbreviate | omitted.

  Hereinafter, the abnormality determination method 2 in the present embodiment will be described with reference to the drawings. FIG. 6 is a diagram showing an abnormality determination method 2 in the present embodiment. As shown in FIG. 6, in S200, the communication quality value measuring unit 12-1 measures a plurality of types of communication quality values per unit time for each terminal (see FIG. 2). In S201, the abnormality determination unit 12-3 determines whether the number of first terminals belonging to any of the predetermined ranges of the average received power value exceeds the reference terminal number (second reference value). In addition, the abnormality determination unit 12-3 proceeds to the process of S203 when the number of first terminals belonging to any of the predetermined ranges of the average received power value exceeds the reference terminal number (second reference value), When the number of first terminals belonging to any of the predetermined ranges of the average received power value does not exceed the reference terminal number (second reference value), the process proceeds to S202.

  In S202, the abnormality determination unit 12-3 determines that the base station apparatus 10 is not abnormal.

  In S203, the abnormality determination unit 12-3 determines that the average value of the average reception modulation accuracy of the first terminal exceeding the reference terminal number (second reference value) is the reference average reception modulation accuracy (third reference value), or the reference It is determined whether the average value of the FER number of the first terminal exceeding the number of terminals (second reference value) exceeds the reference average FER number (third reference value). In addition, the abnormality determination unit 12-3 determines that the average value of the average reception modulation accuracy of the first terminal exceeds the reference average reception modulation accuracy (third reference value), or the average of the FER numbers of the first terminal. When the value exceeds the reference average FER number (third reference value), the process proceeds to S204 (see the hatched portion in FIG. 3), and the average value of the average reception modulation accuracy of the first terminal is the reference average reception. If the modulation accuracy (third reference value) is not exceeded, or if the average value of the FER number of the first terminal does not exceed the reference average FER number (third reference value), the process proceeds to S202.

  In S204, the abnormality determination unit 12-3 includes the first terminal that exceeds the reference average reception modulation accuracy (third reference value) or the reference average FER number (third reference value), and determines the predetermined average reception power value. When the first terminal belonging to any of the ranges exists, it is determined whether or not the number of the first terminals exceeds the reference terminal number (fourth reference value).

  7 and 8, the number of first terminals belonging to the predetermined range of the average received power value exceeds the second reference value, and the average value of the average reception modulation accuracy of the first terminal is the reference average reception modulation accuracy ( The figure referred to when the third reference value) exceeds or the average value of the FER number of the first terminal exceeds the reference average FER number (third reference value) (when YES is determined in S203). It is. 7 and 8 correspond to FIGS. 3 and 4, respectively, and thus detailed description of FIGS. 7 and 8 is omitted.

  Specifically, the abnormality determination unit 12-3 determines that when there is the first terminal exceeding the reference average reception modulation accuracy (third reference value) or the reference average FER number (third reference value), FIG. Referring to FIG. 8 and FIG. 8, it is determined whether or not the first terminal belonging to one of the predetermined ranges of the average received power value exceeds the fourth reference value. For example, as shown in FIG. 7, when the predetermined range of the average received power value is 20 or more and less than 25, the number of first terminals belonging to the predetermined range is 7, so the abnormality determination unit 12-3 Then, it is determined that the number 7 of the first terminals belonging to the predetermined range exceeds the reference terminal number (fourth reference value) 5 shown in FIG. 8 (see the hatched portion shown in FIG. 7).

  In S205, the abnormality determination unit 12-3 determines that the base station apparatus 10 is abnormal.

  In S206, the abnormality determination unit 12-3 determines that the average value of the average reception modulation accuracy of the first terminal exceeding the reference terminal number (fourth reference value) is the reference average reception modulation accuracy (fifth reference value), or the reference It is determined whether the average value of the FER number of the first terminal exceeding the number of terminals (fourth reference value) exceeds the reference average FER number (fifth reference value). In addition, the abnormality determination unit 12-3 determines that the average value of the average reception modulation accuracy of the first terminal exceeds the reference average reception modulation accuracy (fifth reference value), or the average of the FER numbers of the first terminal. When the value exceeds the reference average FER number (fifth reference value), the process proceeds to S207 (see the hatched portion in FIG. 7), and the average value of the average reception modulation accuracy of the first terminal is the reference average reception. When the modulation accuracy (fifth reference value) is not exceeded, or when the average value of the FER number of the first terminal does not exceed the reference average FER number (fifth reference value), the process proceeds to S205.

  In S207, the abnormality determining unit 12-3 determines that the base station device 10 is not abnormal and determines that the first terminal is abnormal.

  Here, when there is a first terminal exceeding the third reference value (when YES is determined in S203), there is a problem with the transmission performance of the first terminal itself, or the first terminal is located. There is a possibility that the communication quality value of the first terminal is deteriorated due to the deterioration of the communication environment. In this case, on the assumption that there are a plurality of first terminals exceeding the third reference value, the number of the first terminals exceeds the fourth reference value, and the first terminal is in a type other than the predetermined type. When the average value of the communication quality values exceeds the fifth reference value, the communication quality value of the first terminal is clearly degraded, and there is a problem in the transmission performance of the first terminal itself, Since it is also clearer that the communication environment in which the first terminal is located is deteriorated, the abnormality determination unit 12-3 has an abnormality in the base station apparatus 10 itself due to the deterioration of the communication quality value of the first terminal. Instead of determining that there is an abnormality, it is possible to determine with high accuracy whether or not the base station apparatus 10 itself has an abnormality by determining that the first terminal itself is abnormal in the first place.

(Fourth embodiment)
In the third embodiment, the abnormality determination unit 12-3 has the number of first terminals belonging to any one of the predetermined ranges of the average received power value exceeding the reference terminal number (fourth reference value), and the first terminal The first terminal is abnormal when the average value of the communication quality values other than the predetermined type exceeds the reference average reception modulation accuracy (fifth reference value) or the reference average FER number (fifth reference value). And the base station apparatus 10 is determined not to be abnormal, but the communication quality value measurement unit 12-1 exceeds the second reference value and the third reference value, and further includes the fourth reference value and the fifth reference value. Each of the communication quality values of the terminals other than the first terminal exceeding the above is measured again, and the abnormality determination unit 12-3 again determines whether the base station apparatus 10 is abnormal based on the measured communication quality value again. You may judge. In addition, since it is the same as that of 1st Embodiment except the abnormality determination part 12-3 in this embodiment, detailed description is abbreviate | omitted.

  Hereinafter, the abnormality determination method 3 in the present embodiment will be described with reference to the drawings. 9 and 10 are diagrams showing the abnormality determination method 3 in the present embodiment. Since the processes from S300 to S306 shown in FIG. 9 are the same as the processes from S200 to S206 shown in FIG. 6, detailed description from S300 to S306 shown in FIG. 9 is omitted.

  As illustrated in FIG. 10, in S307, the communication quality value measurement unit 12-1 measures again the communication quality values of terminals other than the first terminal exceeding the second reference value to the fifth reference value.

  In S308, the abnormality determining unit 12-3 determines that the number of second terminals belonging to any one of the predetermined ranges of the average received power value measured again by the communication quality value measuring unit 12-1 is the reference terminal number (second reference value). ) Or not. In addition, when the number of second terminals belonging to any one of the predetermined ranges of the average received power value exceeds the reference terminal number (second reference value), the abnormality determination unit 12-3 proceeds to the process of S310, If the number of second terminals belonging to one of the predetermined ranges of the average received power value does not exceed the reference terminal number (second reference value), the process proceeds to S309.

  In S309, the abnormality determination unit 12-3 determines that the base station device 10 is not abnormal and determines that the first terminal is abnormal.

  In S310, the abnormality determination unit 12-3 determines that the average value of the average reception modulation accuracy of the second terminal exceeding the reference terminal number (second reference value) is the reference average reception modulation accuracy (third reference value), or the reference It is determined whether the average value of the FER numbers of the second terminals exceeding the number of terminals (second reference value) exceeds the reference average FER number (third reference value). In addition, the abnormality determination unit 12-3 determines that the average value of the average reception modulation accuracy of the second terminal exceeds the reference average reception modulation accuracy (third reference value), or the average of the FER numbers of the second terminal. When the value exceeds the reference average FER number (third reference value), the process proceeds to S311 and the average value of the average reception modulation accuracy of the second terminal is set to the reference average reception modulation accuracy (third reference value). If not exceeded, or if the average value of the FER number of the second terminal does not exceed the reference average FER number (third reference value), the process proceeds to S309.

  In S311, the abnormality determination unit 12-3 determines that the base station device 10 and the first terminal are abnormal.

  Here, on the assumption that there are a plurality of first terminals exceeding the third reference value, the number of first terminals further exceeds the fourth reference value, and the communication quality value of a type other than the predetermined type of the first terminal When the average value exceeds the fifth reference value, the communication quality value of the first terminal is more clearly degraded, and there is a problem with the transmission performance of the first terminal itself, It is also clearer that the communication environment where is located is degraded. For this reason, the communication quality value measuring unit 12-1 measures the communication quality values of the terminals other than the first terminal again, and the abnormality determining unit 12-3 determines whether the base station apparatus 10 itself has an abnormality. By re-determination, the abnormality determination unit 12-3 does not need to consider the first terminal that greatly affects the deterioration of the communication quality value, and thus increases whether or not the base station apparatus 10 itself has an abnormality. The accuracy can be determined.

(Fifth embodiment)
FIG. 11 is a diagram illustrating the base station devices 10a, 10b, 10c..., The terminals 20a, 20b, 20c. As shown in FIG. 11, the base station devices 10a, 10b, 10c... In the first to fourth embodiments may be connected to the control station device 30 via a communication network 40. In addition, since the structure of base station apparatus 10a, 10b, 10c ... in this embodiment is the same as the base station apparatus in 1st Embodiment thru | or 4th Embodiment, detailed of base station apparatus 10a, 10b, 10c ... is detailed. Description is omitted.

  The control station device 30 stores the communication quality value measured by the base station devices 10a, 10b, 10c,... For each terminal or each base station device (see FIG. 3). In addition, the control station device 30 performs the first operation when the communication path of the specific terminal is changed from the first base station device (for example, the base station device 10a) to the second base station device (for example, the base station device 10b). If the communication quality values (for example, average received power value, average received modulation accuracy, number of FERs, etc.) of both specific terminals measured by the base station device and the second base station device exceed the reference value, specify It is determined that the terminal is abnormal. The control station device 30 specifies both of the measurements measured by the first base station device and the second base station device when the communication path of the specific terminal is changed from the first base station device to the second base station device. When the communication quality value of the terminal exceeds the reference value, it may be determined that interference or the like has occurred in the communication environment of the specific terminal.

  According to the present embodiment, when the communication path of the specific terminal is changed from the first base station apparatus to the second base station apparatus, both measured by the first base station apparatus and the second base station apparatus When the communication quality value of the specific terminal exceeds the reference value, the control station apparatus 30 is measured by only one base station apparatus by determining that the specific terminal has an abnormality. The specific terminal is determined by considering the communication quality values of the specific terminals measured by a plurality of base station apparatuses, instead of determining whether or not the specific terminal has an abnormality uniquely using the communication quality values of the specific terminals. Therefore, it can be determined with high accuracy whether there is an abnormality in the specific terminal.

  Note that the control station device 30 determines the specific measurement measured by one of the first base station device and the second base station device when the communication path of the specific terminal is changed from the first base station device to the second base station device. The terminal communication quality value (for example, average received power value, average received modulation accuracy, FER number, etc.) exceeds a reference value, and is measured by the other of the first base station apparatus and the second base station apparatus. If the communication quality value of the specific terminal does not exceed the reference value, it may be determined that one base station apparatus is abnormal.

  In this case, the communication of the specific terminal measured by one of the first base station apparatus and the second base station apparatus when the communication path of the specific terminal is changed from the first base station apparatus to the second base station apparatus. If the quality value exceeds the reference value and the communication quality value of the specific terminal measured by the other of the first base station apparatus and the second base station apparatus does not exceed the reference value, one base By determining that the station apparatus is abnormal, the control station apparatus 30 uses the communication quality value of the specific terminal measured by the one base station apparatus to uniquely identify the one base station apparatus. In order to determine whether or not there is an abnormality in the one base station device in consideration of the communication quality value of a specific terminal measured by a plurality of base station devices, Whether there is an abnormality can be determined with high accuracy.

  Note that the control station device 30 is configured to change the first base station device (for example, the base station device 10a) to the second base station device (for example, the base station device 10b) when the communication path of the specific terminal is changed. When the communication quality values of both the specific terminals measured by the base station apparatus and the second base station apparatus exceed the reference value, it is determined that the specific terminal is abnormal and notifies the specific terminal to that effect. May be. In this case, the specific terminal is notified that the specific terminal is abnormal, so that the user who owns the specific terminal sees that fact and the communication environment of the specific terminal has deteriorated. Can be understood, and it can be attempted to move to a place with a better communication environment.

  Note that the control station device 30 is configured to change the first base station device (for example, the base station device 10a) to the second base station device (for example, the base station device 10b) when the communication path of the specific terminal is changed. When the communication quality values of both the specific terminals measured by the base station apparatus and the second base station apparatus exceed the reference value, it is determined that the specific terminal is abnormal and the base station apparatus 10 May be notified. Further, when notified from the control station device 30, the base station devices 10a, 10b, 10c,... May measure the respective communication quality values of terminals other than the specific terminal. In this case, the base station apparatuses 10a, 10b, 10c... Measure the communication quality values of the terminals other than the specific terminal, and determine whether the base station apparatus itself has an abnormality, thereby The station apparatuses 10a, 10b, 10c,... Do not need to consider a specific terminal that greatly affects the deterioration of the communication quality value, and therefore can determine with high accuracy whether or not the base station apparatus itself is abnormal. .

  Note that the control station device 30 is configured so that the communication quality value (for example, average received power value, average value) of a specific terminal measured by a specific base station device only at a specific timing and in a specific base station device (or a specific communication area) If the reception modulation accuracy, the number of FERs, etc.) exceed the reference value, it may be determined that CCH interference is occurring in the specific base station apparatus only at the specific timing.

  As mentioned above, although an example of the present invention has been described, it is merely a specific example, and the present invention is not particularly limited, and the specific configuration and the like of each part can be appropriately changed in design. In addition, the configuration in any of the embodiments can naturally be combined with the configuration in the other embodiments. Furthermore, the actions and effects described in each embodiment are merely a list of the most preferable actions and effects resulting from the present invention, and are not limited to the actions and effects described in each embodiment.

It is a figure which shows the base station apparatus in 1st Embodiment. It is a figure which shows the communication quality value in 1st Embodiment. It is a figure which shows the average received power value in 2nd Embodiment, the average value of the average receiving modulation precision corresponding to it, and the average value of a FER number. It is a figure which shows the average received power value in 2nd Embodiment, the reference | standard terminal number corresponding to it, a reference | standard average receiving modulation precision, and a reference | standard average FER number. It is a figure which shows the abnormality determination method 1 in 2nd Embodiment. It is a figure which shows the abnormality determination method 2 in 3rd Embodiment. It is a figure which shows the average received power value in 3rd Embodiment, the average value of the average receiving modulation precision corresponding to it, and the average value of a FER number. It is a figure which shows the average received power value in 3rd Embodiment, the reference | standard terminal number corresponding to it, a reference | standard average receiving modulation precision, and a reference | standard average FER number. It is a figure which shows the abnormality determination method 3 in 4th Embodiment (the 1). It is a figure which shows the abnormality determination method 3 in 4th Embodiment (the 2). It is a figure which shows the base station apparatus in 5th Embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Base station apparatus, 11 ... Transmission / reception part, 12 ... Determination part, 12-1 ... Communication quality value measurement part, 12-2 ... Communication quality value storage part, 12-3 ... Abnormality determination part, 12-4 ... Output part , 20 ... terminal, 30 ... control station apparatus, 40 ... communication network

Claims (10)

A communication quality value measuring means for measuring a plurality of types of communication quality values per unit time for each terminal;
An abnormality determination unit that determines that the base station apparatus is not abnormal when an average value of at least two or more types of communication quality values measured by the communication quality value measurement unit does not exceed the first reference value. And a base station apparatus.   The abnormality determination unit is configured such that when a predetermined type of communication quality value among a plurality of types of communication quality values measured by the communication quality value measurement unit belongs to a predetermined range, the number of first terminals belonging to the predetermined range is If the average value of the communication quality values of types other than the predetermined type of the first terminal does not exceed the third reference value, the base station apparatus determines that the base station apparatus is not abnormal. The base station apparatus according to claim 1.   The abnormality determination means includes a number of the first terminals when the first terminal exceeding the third reference value exists and the first terminal has a predetermined type of communication quality value within a predetermined range. Exceeds the fourth reference value, and the average value of the communication quality values of the first terminal other than the predetermined type exceeds the fifth reference value, it is determined that the first terminal is abnormal. The base station apparatus according to claim 2, wherein the base station apparatus determines that the base station apparatus is not abnormal. When the number of the first terminals exceeds the fourth reference value and the average value of the communication quality values of the first terminal other than the predetermined type exceeds the fifth reference value Measure the communication quality value of each terminal other than the first terminal again,
The abnormality determining unit is configured such that when a predetermined type of communication quality value among a plurality of types of communication quality values measured again by the communication quality value measuring unit belongs to a predetermined range, the number of second terminals belonging to the predetermined range is When the second reference value is exceeded and the average value of communication quality values of the second terminal other than the predetermined type exceeds the third reference value, the base station apparatus is abnormal. The base station apparatus according to claim 3, wherein: A first step of measuring a plurality of types of communication quality values per unit time for each terminal;
A second step of determining that the base station apparatus is not abnormal when the average value of at least two or more of the plurality of types measured by the communication quality value measuring means does not exceed the first reference value; An abnormality determination method comprising:   In the second step, when a predetermined type of communication quality value among a plurality of types of communication quality values measured in the first step belongs to a predetermined range, the number of first terminals belonging to the predetermined range is the second reference. If the average value of the communication quality values of the first terminal other than the predetermined type does not exceed the third reference value, it is determined that the base station apparatus is not abnormal. The abnormality determination method according to claim 5, wherein:   In the second step, when there is the first terminal that exceeds the third reference value and there is the first terminal whose communication quality value of the predetermined type belongs to a predetermined range, the number of the first terminals Exceeds the fourth reference value, and the average value of the communication quality values of the first terminal other than the predetermined type exceeds the fifth reference value, it is determined that the first terminal is abnormal. And determining that the base station apparatus is not abnormal. In the first step, when the number of the first terminals exceeds the fourth reference value, and the average value of the communication quality values in the types other than the predetermined type of the first terminal exceeds the fifth reference value. , Measure the communication quality value of each terminal other than the first terminal again,
In the second step, when a predetermined type of communication quality value among a plurality of types of communication quality values measured again in the first step belongs to a predetermined range, the number of second terminals belonging to the predetermined range is When the second reference value is exceeded and the average value of the communication quality values of the second terminal other than the predetermined type exceeds the third reference value, it is determined that the base station apparatus is abnormal The abnormality determination method according to claim 7, wherein: A control station device connected to each of the base station devices provided with communication quality value measuring means for measuring the communication quality value per unit time for each terminal,
When the communication path of the specific terminal is changed from the first base station apparatus to the second base station apparatus, the communication quality value of the specific terminal measured by the first base station apparatus and the second base station apparatus is a reference A control station apparatus that determines that the specific terminal is abnormal when a value is exceeded. A control station device connected to each of the base station devices provided with communication quality value measuring means for measuring the communication quality value per unit time for each terminal,
The communication quality value of the specific terminal measured by one of the first base station apparatus and the second base station apparatus when the communication path of the specific terminal is changed from the first base station apparatus to the second base station apparatus If the communication quality value of the specific terminal measured by the other of the first base station apparatus and the second base station apparatus does not exceed the reference value, one base station apparatus It is determined that is abnormal.

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