JP2002513527A - 無線通信システムにおいて、ソフト ハンドオフを実行するための方法と装置 - Google Patents
無線通信システムにおいて、ソフト ハンドオフを実行するための方法と装置Info
- Publication number
- JP2002513527A JP2002513527A JP53208598A JP53208598A JP2002513527A JP 2002513527 A JP2002513527 A JP 2002513527A JP 53208598 A JP53208598 A JP 53208598A JP 53208598 A JP53208598 A JP 53208598A JP 2002513527 A JP2002513527 A JP 2002513527A
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- JP
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- Prior art keywords
- base station
- pilot
- energy
- mobile station
- block
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000004891 communication Methods 0.000 title abstract description 39
- 230000006854 communication Effects 0.000 title abstract description 39
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010295 mobile communication Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 description 32
- 230000001413 cellular effect Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
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- 238000012360 testing method Methods 0.000 description 3
- 230000010267 cellular communication Effects 0.000 description 2
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- VJYFKVYYMZPMAB-UHFFFAOYSA-N ethoprophos Chemical compound CCCSP(=O)(OCC)SCCC VJYFKVYYMZPMAB-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
- H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
- H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/20—Selecting an access point
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Transmitters (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1. 前記遠隔の局と通信できる基地局からの信号エネルギーの結合に従って閾 値を計算する、 前記閾値と第一の基地局の信号エネルギとを比較する、 前記第一の基地局の前記信号エネルギが前記閾値を超える時、前記第一の 基地局を選択する、 工程を具備する、遠隔の局と通信するために基地局を選択するための方法 2. 前記第一の基地局の前記信号エネルギーは、前記遠隔の局で測定された第 一の基地局パイロット信号のエネルギーである、請求項1に記載された方法。 3. 前記遠隔の局と通信できる基地局からの信号エネルギーの前記結合は、前 記第一の基地局よりも大きな受信エネルギーを持つパイロットのパイロットエネ ルギー値の合計を含んでいる、請求項1に記載された方法。 4. 閾値を計算する前記工程は、前記遠隔の局と通信できる基地局からの信号 エネルギーの前記結合時に、線型動作を行うことを備えている、請求項1に記載 された方法。 5. 閾値を計算する前記工程は、前記遠隔の局と通信できる基地局からの信号 エネルギーの前記結合時に、線型動作を行うことを備えている、請求項3に記載 された方法。 6. 前記線型動作は、 第一の変数で、前記遠隔の局と通信できる基地局からの信号エネルギーの 前記結合を乗算する、及び 前記乗算の結果と第二の変数を加算する、 工程を具備する、請求項4に記載された方法。 7. 前記第一の変数は、2.25の値を有している、請求項6に記載された方法。 8. 前記第二の変数は、3.0の値を有している、請求項6に記載された方法。 9. 前記移動局と通信できる基地局からの前記信号エネルギーを供するために 、複数の基地局の所定のセットより送信されたパイロット信号の強度を、前記遠 隔の局で測定する、工程を更に具備する請求項1に記載された方法。 10. 前記遠隔の局からの前記測定されたパイロット信号のメッセージ表示を 送信する工程を更に具備する、請求項9に記載された方法。 11. 前記第一の基地局の前記信号エネルギーが前記閾値より低い時に、前記 遠隔の局と通信している基地局のセットから前記第一の基地局を取り除く工程、 を更に具備する請求項1に記載された方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US790,497 | 1997-01-29 | ||
US08/790,497 US6151502A (en) | 1997-01-29 | 1997-01-29 | Method and apparatus for performing soft hand-off in a wireless communication system |
PCT/US1998/001058 WO1998033288A2 (en) | 1997-01-29 | 1998-01-27 | Method and apparatus for performing soft hand-off in a wireless communication system |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2002513527A true JP2002513527A (ja) | 2002-05-08 |
JP2002513527A5 JP2002513527A5 (ja) | 2005-10-06 |
JP4027989B2 JP4027989B2 (ja) | 2007-12-26 |
Family
ID=25150859
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53208598A Expired - Lifetime JP4027989B2 (ja) | 1997-01-29 | 1998-01-27 | 無線通信システムにおいて、ソフト ハンドオフを実行するための方法と装置 |
Country Status (23)
Country | Link |
---|---|
US (1) | US6151502A (ja) |
EP (1) | EP0956732B1 (ja) |
JP (1) | JP4027989B2 (ja) |
KR (2) | KR100524271B1 (ja) |
CN (1) | CN1168345C (ja) |
AR (1) | AR011591A1 (ja) |
AT (1) | ATE301376T1 (ja) |
AU (1) | AU6032398A (ja) |
BR (1) | BRPI9807027B1 (ja) |
CA (1) | CA2279314C (ja) |
DE (1) | DE69831058T2 (ja) |
DK (1) | DK0956732T3 (ja) |
ES (1) | ES2245018T3 (ja) |
FI (1) | FI19991648A (ja) |
ID (1) | ID24950A (ja) |
IL (1) | IL131091A (ja) |
MY (1) | MY118178A (ja) |
NO (1) | NO324444B1 (ja) |
PT (1) | PT956732E (ja) |
RU (1) | RU2217871C2 (ja) |
TW (1) | TW546971B (ja) |
WO (1) | WO1998033288A2 (ja) |
ZA (1) | ZA98700B (ja) |
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