JP2010114944A - 通信システムにおける地理的な制御方法および装置 - Google Patents
通信システムにおける地理的な制御方法および装置 Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/022—One-way selective calling networks, e.g. wide area paging
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/52—Determining velocity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/243—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
- H04W52/244—Interferences in heterogeneous networks, e.g. among macro and femto or pico cells or other sector / system interference [OSI]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
- H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
- A61B5/1112—Global tracking of patients, e.g. by using GPS
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S2205/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S2205/001—Transmission of position information to remote stations
- G01S2205/007—Transmission of position information to remote stations for management of a communication system
Abstract
【解決手段】 複数の送信機(90,94,99)を有するメッセージング・システムにおける選択呼出トランシーバ(20)は、受信機モジュール(26)と、前記受信機モジュールに結合された送信機モジュール(22)と、前記受信機モジュールおよび前記送信機モジュールに結合され、前記選択呼出トランシーバの動作を制御するためのコントローラとによって構成される。さらに、選択呼出トランシーバは、GPS情報を受信するために前記コントローラに結合されたGPS受信機(24)も含み、前記コントローラは、前記GPS情報を利用して、送信機電力制御,サイト選択切り換え,サブゾーン選択切り換え,順方向誤り訂正,リトライ送信判定,ドップラ周波数シフト,同期および周波数走査ならびに選択からなるグループから選択される機能の制御を支援する。
【選択図】 図4
Description
請求項9に記載の発明は、請求項7または8に記載の方法において、前記双方向選択呼出加入者装置内の自動利得コントローラの電力を調整することにより、前記メッセージング・システムの動作を制御する工程を含むことを要旨とする。
ここで、qは、携帯加入者ユニットと基地局サイトをつなぐラインと、移動方向を示すラインとによって作られる角度である(ただし、この例では、Cos(q)=1と仮定する)。これは、周波数を増減するためにプラス(+)またはマイナス(−)表示を行う。GPSは移動方向および携帯加入者位置を把握しており、基地局位置は既知であるので、すべての情報は角度qを求めるために判明している。同様に、加入者ユニットが基地局受信機から離れつつある場合、ドップラ・シフトは、局所発振器を調整して、加入者ユニットにおける送信周波数を増加するか、あるいは基地局受信機における受信周波数を低減することによって考慮できる。それに応じて、基地局送信機が70マイル毎時で近づきつつある加入者ユニットに送信中の場合、900MHzの発信側送信は約94Hzのドップラ・シフトが生じ、このドップラ・シフトは、局所発振器を調整して、基地局送信機における送信周波数を低減するか、あるいは加入者ユニットの受信機における受信周波数を増加することによって考慮できる。同様に、加入者ユニットが基地局送信機から離れつつある場合、ドップラ・シフトは、局所発振器を調整して、基地局送信機における送信周波数を増加するか、あるいは加入者ユニットの受信機における受信周波数を低減することによって考慮できる。周波数は、加入者または基地局内の送信機または受信機VCO(図示せず)の制御電圧を変えることによって変更できる。
Claims (6)
- 通信システム(100)における移動加入者ユニットが備える選択呼出トランシーバ(20)であって、
前記通信システム(100)は、それぞれ自己の基地局位置を有する複数の基地局を備え、それぞれ前記基地局は基地局送信機(90,94,99)と基地局受信機(92,96,98)を備え、
前記選択呼出トランシーバ(20)は受信機モジュール(26)、送信機モジュール(22)、GPS受信機(24)、およびコントローラ(28)を有し、前記コントローラ(28)は前記受信機モジュール(26)、前記送信機モジュール(22)、および前記GPS受信機(24)にそれぞれ連結され、
前記GPS受信機(24)はGPS情報を受信し、前記GPS情報は正確な時間信号を含み、
前記コントローラ(28)は、システムカバレッジを失った期間中でも、前記通信システムとの同期を維持できることを特徴とする、選択呼出トランシーバ(20)。 - 通信システム(100)における移動加入者ユニットが備える選択呼出トランシーバ(20)であって、
前記通信システム(100)は複数の基地局を有し、それぞれ前記基地局は既知の前記基地局位置を有する基地局送信機(90,94,99)と基地局受信機(92,96,98)を有し、
前記選択呼出トランシーバ(20)は受信機モジュール(26)、送信機モジュール(22)、コントローラ(28)、およびGPS受信機(24)を有し、
前記コントローラ(28)は前記受信機モジュール(26)、前記送信機モジュール(22)、および前記GPS受信機(24)にそれぞれ連結され、
前記GPS受信機(24)はGPS情報を受信し、前記GPS情報は前記選択呼出トランシーバの方向と速度を含み、
前記コントローラ(28)は、前記速度に応じて、前記送信機モジュール(22)からの周波数送信の順方向誤り訂正アルゴリズムを行うか、
前記速度と前記方向を把握することによって、前記送信機モジュール(22)から既存のサイトへの無駄な再送信を防ぎ、前記選択呼出トランシーバが移動する予定の隣接サイトに対して有用な再送信を行なうことを特徴とする、選択呼出トランシーバ(20)。 - 前記GPS情報は、前記選択呼出トランシーバの携帯加入者位置を含み、
前記選択呼出トランシーバは更に、受信信号強度インジケータとメモリを備え、
前記受信信号強度インジケータは、前記受信機モジュールと前記コントローラにそれぞれ結合され、前記受信信号強度インジケータは、前記受信機モジュールで受信するそれぞれ前記基地局送信機からの受信信号の強度を測定し、
前記メモリは、それぞれ前記基地局位置を格納し、
前記コントローラは、前記選択呼出トランシーバの前記携帯加入者位置を、前記受信信号の強度とともに前記基地局位置と比較することによって、前記送信機モジュールを電力調整する、請求項4または5記載の選択呼出トランシーバ。 - 前記GPS情報は、前記選択呼出トランシーバの携帯加入者位置を含み、
前記コントローラは、前記携帯加入者位置を、前記通信システム(100)内の前記基地局位置と比較することによって、前記送信機モジュール(22)からの電力を調整するか、または所望の前記基地局送信機から来る電力を調整する、請求項4または5記載の選択呼出トランシーバ。 - 選択呼出トランシーバ(20)の制御方法であって、前記選択呼出トランシーバ(20)は、複数の基地局を有する通信システム(100)における移動加入者ユニットによって備えられ、それぞれ前記基地局は自己の基地局位置を有し、且つ、基地局送信機(90,94,99)と基地局受信機(92,96,98)を有し、
選択呼出トランシーバ(20)は受信機モジュール(26)、送信機モジュール(22)、コントローラ(28)、およびGPS受信機(24)を有し、前記コントローラ(28)は前記受信機モジュール(26)、前記送信機モジュール(22)、および前記GPS受信機(24)にそれぞれ連結され、前記制御方法は、
前記GPS受信機(24)によってGPS情報を受信することによって、正確な時間信号を把握するステップと、
前記コントローラ(28)によって、システムカバレッジを失った期間中でも、前記通信システムとの同期を維持するステップと
を有することを特徴とする、選択呼出トランシーバ(20)の制御方法。 - 選択呼出トランシーバ(20)の制御方法であって、前記選択呼出トランシーバ(20)は、複数の基地局を有する通信システム(100)における移動加入者ユニットによって備えられ、それぞれ前記基地局は自己の基地局位置を有し、且つ、基地局送信機(90,94,99)と基地局受信機(92,96,98)を有し、
選択呼出トランシーバ(20)は受信機モジュール(26)、送信機モジュール(22)、コントローラ(28)、およびGPS受信機(24)を有し、前記コントローラ(28)は前記受信機モジュール(26)、前記送信機モジュール(22)、および前記GPS受信機(24)にそれぞれ連結され、前記制御方法は、
前記GPS受信機(24)によってGPS情報を受信することによって、前記選択呼出トランシーバの方向と速度を把握するステップと、
前記コントローラ(28)によって、前記速度に応じて、前記送信機モジュール(22)からの周波数送信の順方向誤り訂正アルゴリズムを行うか、あるいは、前記速度と前記方向を把握することによって、前記送信機モジュール(22)から既存のサイトへの無駄な再送信を防ぎ、前記選択呼出トランシーバが移動する予定の隣接サイトに対して有用な再送信を行なうステップと
を有することを特徴とする、制御方法。
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US08/675,318 | 1996-07-10 | ||
US08/675,318 US5857155A (en) | 1996-07-10 | 1996-07-10 | Method and apparatus for geographic based control in a communication system |
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JP2006151461A Expired - Lifetime JP4852345B2 (ja) | 1996-07-10 | 2006-05-31 | 通信システムにおける地理的な制御方法および装置 |
JP2010028414A Expired - Lifetime JP4865876B2 (ja) | 1996-07-10 | 2010-02-12 | 通信システムにおける地理的な制御方法および装置 |
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JP2006151461A Expired - Lifetime JP4852345B2 (ja) | 1996-07-10 | 2006-05-31 | 通信システムにおける地理的な制御方法および装置 |
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US (1) | US5857155A (ja) |
EP (1) | EP0909522B1 (ja) |
JP (3) | JP2001526845A (ja) |
KR (1) | KR100310712B1 (ja) |
CN (1) | CN1258298C (ja) |
BR (1) | BR9710200A (ja) |
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KR20000023684A (ko) | 2000-04-25 |
BR9710200A (pt) | 1999-08-10 |
EP0909522A1 (en) | 1999-04-21 |
JP4865876B2 (ja) | 2012-02-01 |
EP0909522B1 (en) | 2009-09-02 |
JP4852345B2 (ja) | 2012-01-11 |
US5857155A (en) | 1999-01-05 |
JP2001526845A (ja) | 2001-12-18 |
CN1251728A (zh) | 2000-04-26 |
DE69739563D1 (de) | 2009-10-15 |
JP2006295963A (ja) | 2006-10-26 |
EP0909522A4 (en) | 2000-05-24 |
WO1998002009A1 (en) | 1998-01-15 |
CN1258298C (zh) | 2006-05-31 |
KR100310712B1 (ko) | 2001-10-18 |
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