JP2003174368A5 - - Google Patents
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- JP2003174368A5 JP2003174368A5 JP2001373246A JP2001373246A JP2003174368A5 JP 2003174368 A5 JP2003174368 A5 JP 2003174368A5 JP 2001373246 A JP2001373246 A JP 2001373246A JP 2001373246 A JP2001373246 A JP 2001373246A JP 2003174368 A5 JP2003174368 A5 JP 2003174368A5
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- JP
- Japan
- Prior art keywords
- transmission
- wall
- distance
- antenna
- broadband signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Claims (9)
アンテナと、
前記アンテナを介して広帯域信号を放出する無線送信部と、
前記アンテナを介して広帯域信号を入力する無線受信部と、
前記無線送信部から放出された広帯域信号の壁からの反射波の伝播状況を基に壁までの距離を推定して、該推定結果を基に前記無線送信部における送信出力を制御する送信制御部と、
を具備することを特徴とする無線通信装置。A wireless communication device used in an environment partitioned by walls,
An antenna,
A wireless transmitter that emits a broadband signal via the antenna;
A wireless receiver for inputting a broadband signal via the antenna;
A transmission control unit that estimates the distance to the wall based on the propagation state of the reflected wave from the wall of the broadband signal emitted from the wireless transmission unit, and controls the transmission output in the wireless transmission unit based on the estimation result When,
A wireless communication apparatus comprising:
ことを特徴とする請求項１に記載の無線通信装置。The transmission control unit estimates a distance D max to a wall that is considered to be the farthest and controls the transmission power to a minimum transmission power reaching D max .
The wireless communication apparatus according to claim 1.
前記送信制御部は、各々の指向性アンテナがカバーするセクタ毎に壁までの距離を独立に推測して、その距離に合わせて各指向性アンテナからの送信出力を独立して制御する、
ことを特徴とする請求項１に記載の無線通信装置。The antenna comprises a plurality of directional antennas,
The transmission control unit independently estimates the distance to the wall for each sector covered by each directional antenna, and independently controls the transmission output from each directional antenna according to the distance,
The wireless communication apparatus according to claim 1.
ことを特徴とする請求項３に記載の無線通信装置。The transmission control unit sets a distance D undesired to the wall that is not desired to be exceeded based on the propagation state of the reflected wave from the wall of the broadband signal emitted from the directional antenna that is directed in a direction that is not desired to be caused to exceed the wall. Estimate and control to the minimum transmit power that reaches the distance D undesired ,
The wireless communication apparatus according to claim 3.
アンテナを介して広帯域信号を放出する無線送信ステップと、
アンテナを介して広帯域信号を入力する無線受信ステップと、
前記無線送信ステップにおいて放出された広帯域信号の壁からの反射波の伝播状況を基に壁までの距離を推定して、該推定結果を基に前記無線送信ステップにおける送信出力を制御する送信制御ステップと、
を具備することを特徴とする送信出力制御方法。A transmission output control method for controlling the output of a transmission signal used for wireless communication in an environment partitioned by a wall,
A wireless transmission step of emitting a broadband signal via an antenna;
A radio reception step of inputting a broadband signal via an antenna;
A transmission control step of estimating the distance to the wall based on the propagation state of the reflected wave from the wall of the broadband signal emitted in the wireless transmission step, and controlling the transmission output in the wireless transmission step based on the estimation result When,
A transmission output control method comprising:
ことを特徴とする請求項５に記載の送信出力制御方法。In the transmission control step, the distance D max to the wall that is considered to be the farthest is estimated, and the minimum transmission power reaching D max is controlled.
The transmission output control method according to claim 5.
前記送信制御ステップでは、各々の指向性アンテナがカバーするセクタ毎に壁までの距離を独立に推測して、その距離に合わせて各指向性アンテナからの送信出力を独立して制御する、
ことを特徴とする請求項５に記載の送信出力制御方法。 Send and receive wideband signals using multiple directional antennas,
In the transmission control step, the distance to the wall is estimated independently for each sector covered by each directional antenna, and the transmission output from each directional antenna is controlled independently according to the distance.
The transmission output control method according to claim 5.
ことを特徴とする請求項７に記載の送信出力制御方法。In the transmission control step, the distance D undesired to the wall that is not desired to be passed over is determined based on the propagation state of the reflected wave from the wall of the broadband signal emitted from the directional antenna that is directed in the direction that is not desired to be passed over the wall. Estimate and control to the minimum transmit power that reaches the distance D undesired ,
The transmission output control method according to claim 7.
アンテナを介して広帯域信号を放出する無線送信ステップと、
アンテナを介して広帯域信号を入力する無線受信ステップと、
前記無線送信ステップにおいて放出された広帯域信号の壁からの反射波の伝播状況を基に壁までの距離を推定して、該推定結果を基に前記無線送信ステップにおける送信出力を制御する送信制御ステップと、
を具備することを特徴とするコンピュータ・プログラム。A computer program described to execute processing for controlling output of a transmission signal used for wireless communication in an environment partitioned by a wall on a computer system,
A wireless transmission step of emitting a broadband signal via an antenna;
A radio reception step of inputting a broadband signal via an antenna;
A transmission control step of estimating the distance to the wall based on the propagation state of the reflected wave from the wall of the broadband signal emitted in the wireless transmission step, and controlling the transmission output in the wireless transmission step based on the estimation result When,
A computer program comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001373246A JP2003174368A (en) | 2001-12-06 | 2001-12-06 | Radio communication equipment, method for controlling transmission output, storage medium, and computer program |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001373246A JP2003174368A (en) | 2001-12-06 | 2001-12-06 | Radio communication equipment, method for controlling transmission output, storage medium, and computer program |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003174368A JP2003174368A (en) | 2003-06-20 |
| JP2003174368A5 true JP2003174368A5 (en) | 2005-07-14 |
Family
ID=19181999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001373246A Pending JP2003174368A (en) | 2001-12-06 | 2001-12-06 | Radio communication equipment, method for controlling transmission output, storage medium, and computer program |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003174368A (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4519435B2 (en) * | 2003-09-25 | 2010-08-04 | 富士通コンポーネント株式会社 | In-vehicle system |
| DE60321915D1 (en) * | 2003-10-09 | 2008-08-14 | Mitsubishi Electric Corp | Method for modulating ultra-wideband pulse sequences |
| EP1526648A1 (en) * | 2003-10-21 | 2005-04-27 | Mitsubishi Electric Information Technology Centre Europe B.V. | System and device for modulating UWB pulse sequences |
| ATE413020T1 (en) * | 2003-12-17 | 2008-11-15 | Mitsubishi Electric Corp | DEMODULATION METHOD OF ULTRA WIDEBAND PULSE SEQUENCES CODED USING AN ON-OFF KEYING MODULATION METHOD |
| JP2005181193A (en) * | 2003-12-22 | 2005-07-07 | Tdk Corp | Pulse-wave radar apparatus |
| JP2006194802A (en) | 2005-01-17 | 2006-07-27 | Fujitsu Component Ltd | Distance measuring apparatus |
| JP5342099B2 (en) * | 2005-04-18 | 2013-11-13 | 古河電気工業株式会社 | Ranging / communication system |
| JP5342604B2 (en) * | 2005-04-18 | 2013-11-13 | 古河電気工業株式会社 | Ranging / communication system |
| JP4887752B2 (en) | 2005-11-17 | 2012-02-29 | 富士通株式会社 | Impulse generator, communication device, and computer-readable recording medium recording impulse control program |
| JP2007174244A (en) * | 2005-12-21 | 2007-07-05 | Canon Inc | Radio communication equipment and range-finding method |
| EP1986019B1 (en) | 2006-06-01 | 2016-04-13 | The Furukawa Electric Co., Ltd. | Burst oscillation device, burst oscillation method, and ranging/communication system |
| JP5038744B2 (en) * | 2007-03-06 | 2012-10-03 | 富士通コンポーネント株式会社 | Intrusion detection system |
| JP2009281927A (en) * | 2008-05-23 | 2009-12-03 | Nec Electronics Corp | Mobile terminal, its indoor/outdoor determination method, and program |
| JP5365546B2 (en) * | 2010-02-25 | 2013-12-11 | 日本電気株式会社 | Indoor wireless communication system, femtocell base station, wireless power control method, wireless power control program, and recording medium |
| JP5742474B2 (en) | 2011-05-27 | 2015-07-01 | 富士通株式会社 | Wireless communication apparatus, wireless communication system, and wireless communication method |
| WO2014125959A1 (en) * | 2013-02-12 | 2014-08-21 | 古野電気株式会社 | Communication device and communication method |
| CN111010727B (en) * | 2018-10-08 | 2023-04-18 | 台达电子工业股份有限公司 | Wireless communication system and method |
| JP7469938B2 (en) * | 2020-03-30 | 2024-04-17 | パナソニックホールディングス株式会社 | Information processing device, information processing method, and program |
-
2001
- 2001-12-06 JP JP2001373246A patent/JP2003174368A/en active Pending
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