JP2012213038A5 - - Google Patents
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- JP2012213038A5 JP2012213038A5 JP2011077638A JP2011077638A JP2012213038A5 JP 2012213038 A5 JP2012213038 A5 JP 2012213038A5 JP 2011077638 A JP2011077638 A JP 2011077638A JP 2011077638 A JP2011077638 A JP 2011077638A JP 2012213038 A5 JP2012213038 A5 JP 2012213038A5
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以上の課題を解決するために本発明は、第１の所定周期のフレームを複数のスロットで区切ったＴＤＭＡ方式で通信を行う無線通信装置であって、複数のフレームそれぞれを複数のスロットで区切った信号を受信する受信部と、前記信号の前記複数のフレームの複数のスロット毎の受信電界レベルを測定し、前記受信部が受信した信号が、複数のフレームのうち隣接する２つのフレームにおける同一番号のスロットにおいて、前記２つのフレームのうちの第１のフレームの前記スロットの受信電界レベルが第１の閾値を越え、且つ前記２つのフレームのうちの第２のフレームの前記スロットの受信電界レベルが第１の閾値を越えない場合は、前記受信した信号が前記無線通信装置と異なる周期のフレームを複数のスロットで区切ったＴＤＭＡ方式で通信を行う他の無線通信装置からの制御信号であると判断し、更に前記他の無線通信装置の制御信号に干渉を与えないような動作モードに切り替える制御部と、を備えたこと特徴としたものである。これにより、自営ＰＨＳの保護を行えるという作用を有する。 The present invention in order to solve the above problem, the first predetermined period of a frame A wireless communication apparatus for communicating with the TDMA method, separated by a plurality of slots, separated each of the plurality of frames in a plurality of slots a receiver for receiving a signal, the reception electric field level of each of the plurality of slots of said plurality of frames of the signal is measured, the signal received by the receiver is identical in the two adjacent frames of the plurality of frames In the numbered slot, the received electric field level of the slot of the first frame of the two frames exceeds a first threshold value, and the received electric field level of the slot of the second frame of the two frames If the received signal does not exceed the first threshold, the received signal is a TDMA obtained by dividing a frame having a period different from that of the wireless communication device by a plurality of slots. Determining that the control signal from the other wireless communication device that performs communication by the formula, octopus and characterized further comprising a control unit for switching the operation mode so as not to interfere with the control signals of the other wireless communication device It is what. Thereby, it has the effect | action that the protection of self-supporting PHS can be performed.
また、あるスロットで第１の閾値を超え、隣接するフレームの同じスロットでの測定結果が第１の閾値を超えない場合は、前記隣接するフレームの中の何れかスロットで当該第１の閾値を超えたスロットにおける電界強度値との差が第３の閾値を超えた場合に第２の通信規格の制御信号が在ると判定する干渉種別判別手段を備えたものである。これにより、受信電界強度が比較的小さい場合でも、自営ＰＨＳの信号であるか否かの判定をより確実に行えるという作用を有する。 Further , when the first threshold is exceeded in a certain slot and the measurement result in the same slot of the adjacent frame does not exceed the first threshold, the first threshold is set in any slot in the adjacent frame. Interference type discrimination means for judging that a control signal of the second communication standard is present when the difference from the electric field intensity value in the slot exceeding the third threshold value is provided. Thereby, even when the received electric field strength is relatively small, it is possible to more reliably determine whether or not the signal is a self-supported PHS signal.
また、所定の閾値以上の受信電界強度が現れた信号の周波数と、当該信号が受信された
タイムスロットに対応するスロット番号とを監視し、それを少なくとも３００ｍｓ以上の期間で監視するようにしたことにより、自営ＰＨＳの保護を行えるという作用を有する。
In addition , the frequency of the signal in which the received electric field strength of a predetermined threshold or more appears and the slot number corresponding to the time slot in which the signal is received are monitored for a period of at least 300 ms. Therefore, it has an effect of protecting the self-supported PHS.
また、所定の閾値以上の受信電界強度が現れた信号の周波数と、当該信号が受信されたタイムスロットに対応するスロット番号とを監視し、少なくとも３００ｍｓ以上の期間で監視する中で検出された各スロットの受信電界強度の標準偏差と最大値から、自営ＰＨＳの制御チャネルによる干渉があると判別することを特徴としたものである。これにより、自営ＰＨＳの保護を行えるという作用を有する。 In addition , the frequency of the signal at which the received electric field strength of a predetermined threshold or more appears and the slot number corresponding to the time slot in which the signal is received are monitored, and each detected during monitoring at least for a period of 300 ms or more. From the standard deviation and the maximum value of the received field strength of the slot, it is determined that there is interference due to the control channel of the private PHS. Thereby, it has the effect | action that the protection of self-supporting PHS can be performed.
また、所定の閾値以上の受信電界強度が現れた信号の周波数と、当該信号が受信されたタイムスロットに対応するスロット番号とを監視し、少なくとも３００ｍｓ以上の期間で監視する中で検出された各スロットの受信電界強度の平均値、最小値および最大値から、自営ＰＨＳの制御チャネルによる干渉があると判別することを特徴としたものである。これにより、自営ＰＨＳの保護を行えるという作用を有する。 In addition , the frequency of the signal at which the received electric field strength of a predetermined threshold or more appears and the slot number corresponding to the time slot in which the signal is received are monitored, and each detected during monitoring at least for a period of 300 ms or more. It is characterized in that it is determined from the average value, minimum value, and maximum value of the received electric field strength of the slot that there is interference due to the control channel of the private PHS. Thereby, it has the effect | action that the protection of self-supporting PHS can be performed.
また、所定の閾値以上の受信電界強度が現れた信号の周波数と、当該信号が受信されたタイムスロットに対応するスロット番号とを監視し、少なくとも３００ｍｓ以上の期間で監視する中でほぼ同じ受信電界強度の信号が１２５ｍｓ以上の周期で現れるか、若しくは、少なくとも１回現れた場合は、更に監視時間を３００ｍｓの延長し、自営ＰＨＳの制御チャネルによる干渉があると判別精度を上げることを特徴としたものである。これにより、より確実に自営ＰＨＳの保護を行えるという作用を有する。 In addition , the frequency of a signal in which the received electric field strength of a predetermined threshold value or more appears and the slot number corresponding to the time slot in which the signal is received are monitored. If the signal of strength appears in a period of 125 ms or more, or appears at least once, the monitoring time is further extended by 300 ms, and the discrimination accuracy is improved when there is interference from the control channel of the self-supported PHS. Is. Thereby, it has the effect | action that protection of self-supporting PHS can be performed more reliably.
Claims (12)
複数のフレームそれぞれを複数のスロットで区切った信号を受信する受信部と、
前記複数のスロット毎の受信電界レベルを測定し、前記受信部が受信した信号が、複数のフレームのうち隣接する２つのフレームにおける同一番号のスロットにおいて、前記２つのフレームのうちの第１のフレームの前記スロットの受信電界レベルが第１の閾値を越え、且つ前記２つのフレームのうちの第２のフレームの前記スロットの受信電界レベルが第
１の閾値を越えない場合は、前記受信した信号が前記無線通信装置と異なる周期のフレームを複数のスロットで区切ったＴＤＭＡ方式で通信を行う他の無線通信装置からの制御信号であると判断し、更に前記他の無線通信装置の制御信号に干渉を与えないような動作モードに切り替える制御部と、
を備えることを特徴とする無線通信装置。 A wireless communication apparatus that performs communication by a TDMA system in which a frame of a first predetermined period is divided by a plurality of slots,
A receiver for receiving a signal separated each of the plurality of frames in a plurality of slots,
The reception electric field level for each of the plurality of slots is measured, and the signal received by the reception unit is a first frame of the two frames in a slot with the same number in two adjacent frames of the plurality of frames. The received electric field level of the slot exceeds a first threshold, and the received electric field level of the slot of the second frame of the two frames is
If the threshold value of 1 is not exceeded, it is determined that the received signal is a control signal from another wireless communication apparatus that performs communication using a TDMA system in which frames having a different period from the wireless communication apparatus are divided by a plurality of slots. A control unit that switches to an operation mode that does not interfere with the control signal of the other wireless communication device ;
Wireless communication device comprising: a.
前記受信部が受信した信号が、前記複数のフレームのうち隣接する２つのフレームにおける同一番号のスロットにおいて、第１のフレームの前記スロットの受信電界レベルと、第２のフレームの前記スロットの受信電界レベルと、が第１の閾値を越え、かつ第１のフレームの前記スロットの受信電界レベルと、第２のフレームの前記スロットの受信電界レベルと、の差が第２の閾値を越えない場合は、前記受信した信号が前記他の無線通信装置からの制御信号でないと判断することを特徴とする請求項１に記載の無線通信装置。When the signal received by the receiving unit is a slot having the same number in two adjacent frames of the plurality of frames, the received electric field level of the slot of the first frame and the received electric field of the slot of the second frame And the difference between the received electric field level of the slot of the first frame and the received electric field level of the slot of the second frame does not exceed the second threshold. The wireless communication apparatus according to claim 1, wherein the received signal is determined not to be a control signal from the other wireless communication apparatus.
前記受信部が受信した信号が、前記複数のフレームのうち隣接する２つのフレームにおける同一番号のスロットにおいて、第１のフレームの前記スロットの受信電界レベルと、第２のフレームの前記スロットの受信電界レベルと、が第１の閾値を越え、かつ第１のフレームの前記スロットの受信電界レベルと、第２のフレームの前記スロットの受信電界レベルと、の差が第２の閾値を越える場合は、前記受信した信号が前記他の無線通信装置からの制御信号であると判断し、更に第２の通信規格の制御信号に干渉を与えないような動作モードに切り替える制御部と、
を備えることを特徴とする請求項１または２のいずれかに記載の無線通信装置。 The controller is
When the signal received by the receiving unit is a slot having the same number in two adjacent frames of the plurality of frames, the received electric field level of the slot of the first frame and the received electric field of the slot of the second frame And the difference between the received electric field level of the slot of the first frame and the received electric field level of the slot of the second frame exceeds a second threshold, A control unit that determines that the received signal is a control signal from the other wireless communication device, and further switches to an operation mode that does not interfere with the control signal of the second communication standard ;
The wireless communication apparatus according to claim 1, further comprising:
前記受信部が受信した信号が、複数のフレームのうち隣接する２つのフレームにおける同一番号のスロットにおいて、前記２つのフレームのうちの第１のフレームの前記スロットの受信電界レベルが第１の閾値を越え、且つ前記２つのフレームのうちの第２のフレームの前記スロットの受信電界レベルが第１の閾値を越えない場合、更に、第１のフレームの前記スロットの受信電界レベルと第１のフレームの前記スロットの受信電界レベルとの差が第３の閾値を越える場合にのみ前記受信した信号が前記他の無線通信装置からの制御信号であると判断し、更に第２の通信規格の制御信号に干渉を与えないような動作モードに切り替えることを特徴とする請求項１〜３のいずれかに記載の無線通信装置。When the signal received by the receiving unit is a slot having the same number in two adjacent frames among a plurality of frames, the received electric field level of the slot of the first frame of the two frames has a first threshold value. And if the received electric field level of the slot of the second frame of the two frames does not exceed the first threshold, the received electric field level of the slot of the first frame and the first frame Only when the difference between the received electric field level of the slot exceeds a third threshold value, the received signal is determined to be a control signal from the other wireless communication device, and is further converted to a control signal of the second communication standard. The radio communication apparatus according to claim 1, wherein the radio communication apparatus is switched to an operation mode that does not give interference.
前記他の無線通信装置は、前記第２の所定周期のフレームが１２５ｍｓｅｃ以上３００ｍｓｅｃ以下の任意の期間であり、
前記制御部は、前記受信部が受信した信号を、２０ｍｓｅｃ以上１２５ｍｓｅｃ以内の期間において前記複数のフレームの前記複数のスロット毎の受信電界レベルを測定することを特徴とする請求項１〜５のいずれかに記載の無線通信装置。 In the wireless communication device, the frame of the first predetermined period is 10 msec,
In the other wireless communication device, the frame of the second predetermined period is an arbitrary period of 125 msec to 300 msec,
6. The control unit according to claim 1, wherein the control unit measures the received electric field level for each of the plurality of slots of the plurality of frames in a period of 20 msec to 125 msec of the signal received by the receiving unit. A wireless communication device according to claim 1 .
前記受信部が受信した信号に前記第１の閾値以上の受信電界強度をもつスロットが現れた場合、
当該信号の周波数と当該スロットのスロット番号とを監視し、
少なくとも３００ｍｓｅｃの期間内の前記信号の各スロットの受信電界レベルの最大値と最小値の差分から、自営ＰＨＳの制御チャネルによる干渉があると判別することを特徴とする請求項１〜６のいずれかに記載の無線通信装置。 The controller is
When a slot having a received electric field strength equal to or higher than the first threshold appears in the signal received by the receiver,
Monitor the frequency of the signal and the slot number of the slot,
7. It is determined from the difference between the maximum value and the minimum value of the reception electric field level of each slot of the signal within a period of at least 300 msec that there is interference due to a control channel of a private PHS . the wireless communication apparatus according to.
前記受信部が受信した信号に前記第１の閾値以上の受信電界強度をもつスロットが現れた場合、
当該信号の周波数と当該スロットのスロット番号とを監視し、
少なくとも３００ｍｓｅｃ以上の期間で監視する中で検出された各スロットの受信電界強度の標準偏差と最大値から、自営ＰＨＳの制御チャネルによる干渉があると判別することを特徴とする請求項１〜７のいずれかに記載の無線通信装置。 The controller is
When a slot having a received electric field strength equal to or higher than the first threshold appears in the signal received by the receiver,
Monitor the frequency of the signal and the slot number of the slot,
8. It is determined from the standard deviation and the maximum value of the received electric field strength of each slot detected during monitoring for at least 300 msec or more that there is interference due to a control channel of a private PHS . Any one of the radio | wireless communication apparatuses.
前記受信部が受信した信号に前記第１の閾値以上の受信電界強度をもつスロットが現れた場合、
当該信号の周波数と当該スロットのスロット番号とを監視し、
少なくとも３００ｍｓｅｃ以上の期間で監視する中で検出された各スロットの受信電界強度の平均値、最小値および最大値から、自営ＰＨＳの制御チャネルによる干渉があると判別することを特徴とする請求項１〜８のいずれかに記載の無線通信装置。 The controller is
When a slot having a received electric field strength equal to or higher than the first threshold appears in the signal received by the receiver,
Monitor the frequency of the signal and the slot number of the slot,
Claim 1, characterized in that to determine at least the average value of the reception field strength of each slot detected in monitoring for a period of more than 300 msec, the minimum and maximum value, there is interference by private PHS control channel The wireless communication device according to any one of?
前記無線通信装置は、受信した信号の複数のフレームにおける各スロットの受信電界レベルを測定し、
前記複数のフレームのうち隣接する２つのフレームにおける同一番号のスロットにおいて、前記２つのフレームのうちの第１のフレームの前記スロットの受信電界レベルが第１の閾値を越え、且つ前記２つのフレームのうちの第２のフレームの前記スロットの受信電界レベルが第１の閾値を越えない場合は、前記受信した信号が前記他の無線通信装置からの制御信号であると判断することを特徴とする干渉検知方法。 Signal-free line communication apparatus that performs communication with the TDMA method, separated a first predetermined period of a frame in the plurality of slots are received, separated second cycle of a frame different from the first predetermined period in a plurality of slots An interference detection method for determining whether a control signal is transmitted from another wireless communication apparatus that communicates using the TDMA method ,
The wireless communication device measures a reception electric field level of each slot in a plurality of frames of a received signal ;
In the slots of the same number in two adjacent frames of the plurality of frames, the received electric field level of the slot of the first frame of the two frames exceeds a first threshold, and the two frames If the received electric field level of the slot of the second frame of the second frame does not exceed the first threshold value, it is determined that the received signal is a control signal from the other radio communication device. Detection method.
前記複数のフレームのうち隣接する２つのフレームにおける同一番号のスロットにおいて、第１のフレームの前記スロットの受信電界レベルと、第２のフレームの前記スロットの受信電界レベルと、が第１の閾値を越え、かつ第１のフレームの前記スロットの受信電界レベルと、第２のフレームの前記スロットの受信電界レベルと、の差が第２の閾値を越えない場合は、前記受信した信号が前記他の無線通信装置からの制御信号でないと判断することを特徴とする請求項１０に記載の干渉検知方法。In the slots of the same number in two adjacent frames of the plurality of frames, the received electric field level of the slot of the first frame and the received electric field level of the slot of the second frame have a first threshold value. And if the difference between the received field level of the slot of the first frame and the received field level of the slot of the second frame does not exceed a second threshold, the received signal is The interference detection method according to claim 10, wherein it is determined that the control signal is not a control signal from a wireless communication device.
前記複数のフレームのうち隣接する２つのフレームにおける同一番号のスロットにおいて、第１のフレームの前記スロットの受信電界レベルと、第２のフレームの前記スロットの受信電界レベルと、が第１の閾値を越え、かつ第１のフレームの前記スロットの受信電界レベルと、第２のフレームの前記スロットの受信電界レベルと、の差が第２の閾値を越える場合は、前記受信した信号が前記他の無線通信装置からの制御信号であると判断することを特徴とする請求項１０に記載の干渉検知方法。In the slots of the same number in two adjacent frames of the plurality of frames, the received electric field level of the slot of the first frame and the received electric field level of the slot of the second frame have a first threshold value. And if the difference between the received electric field level of the slot of the first frame and the received electric field level of the slot of the second frame exceeds a second threshold, the received signal is the other radio The interference detection method according to claim 10, wherein the control signal is determined to be a control signal from a communication device.
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