JP2004048784A - 無線電話用電力制御装置及び方法 - Google Patents
無線電話用電力制御装置及び方法 Download PDFInfo
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- JP2004048784A JP2004048784A JP2003304151A JP2003304151A JP2004048784A JP 2004048784 A JP2004048784 A JP 2004048784A JP 2003304151 A JP2003304151 A JP 2003304151A JP 2003304151 A JP2003304151 A JP 2003304151A JP 2004048784 A JP2004048784 A JP 2004048784A
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- 238000000034 method Methods 0.000 title claims description 24
- 230000005540 biological transmission Effects 0.000 claims abstract description 60
- 230000001413 cellular effect Effects 0.000 claims description 16
- 238000005259 measurement Methods 0.000 claims description 14
- 230000008054 signal transmission Effects 0.000 claims 2
- 238000004891 communication Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000012935 Averaging Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
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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
- H04W52/06—TPC algorithms
- H04W52/10—Open loop power control
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Time-Division Multiplex Systems (AREA)
Abstract
【解決手段】 送信(TX)及び受信(RX)は、システムで、異なったタイムスロットで実行され、同じ周波数及びバンド幅が送信及び受信のために使用される。無線電話機は、基地局から受信された受信信号(IRX)のレベルを測定し(PM)、受信信号レベルに応じて、前記受信タイムスロットに続く送信タイムスロットで送信される信号の(ITX)の電力を制御する。
【選択図】 図3
Description
TX…送信機
PM…電力測定回路
COMP…比較手段
IRX…受信信号
ITX…送信信号
SREF…基準値
Claims (11)
- 信号送受信用に実質的に同一の中心周波数及び帯域幅を使用する時分割デュープレックス/符号分割多重アクセス(TDD/CDMA)無線電話システムにおいて動作する無線電話用の送信電力制御装置であって、
受信信号レベルを測定する信号測定手段(PM)であって該受信信号(IRX)のレベルを信号の拡散解除後に測定するものと、該受信信号レベルに従って対応する次の送信信号(ITX)のレベルを制御する電力制御手段と、を具備するものにおいて、
送信電力が変化するときのみ送信時に基地局によって送信される絶対電力のレベルを示す情報を受信する絶対電力測定手段を更に具備することにより、該対応する次の送信信号(ITX)のレベルが、基地局によって送信された絶対電力のレベルと該受信信号レベルとに応じて制御可能であることを特徴とする、無線電話用送信電力制御装置。 - 該受信信号(IRX)のレベルは、予め設定された基準レベル(SREF)と比較され、対応する次の送信信号のレベルは、該比較の結果(COMP)に従って制御可能である、請求項1に記載の装置。
- 該送信電力レベルは、該送信信号(ITX)が該基地局までエラーなしで伝播するために可能な最低のレベル(SREG)まで制御可能である、請求項1又は請求項2に記載の装置。
- 該受信信号(IRX)のレベルは、無線周波信号から測定される、請求項1に記載の装置。
- 該受信信号(IRX)の測定が発生している測定期間と実質的に同一の長さの時間を持つ送信タイムスロット及び受信タイムスロットを有する無線電話システムで動作可能である、請求項1に記載の装置。
- 請求項1から請求項5までのいずれか一項に記載の装置を具備するセルラー無線電話。
- 信号送受信用に実質的に同一の中心周波数及び帯域幅を使用する時分割デュープレックス/符号分割多重アクセス(TDD/CDMA)無線電話システムにおいて動作する無線電話用の送信電力の制御方法であって、
受信信号(IRX)を測定するステップであって該受信信号(IRX)のレベルを信号の拡散解除後に測定するものと、該受信信号レベルに従って対応する次の送信信号(ITX)のレベルを制御するステップと、を具備するものにおいて、
送信電力が変化するときのみ送信時に基地局によって送信される絶対電力のレベルを示す情報を受信するステップと、該絶対電力レベルと該受信信号レベルとに応じて該次の送信信号のレベルを制御するステップと、を更に具備することを特徴とする、無線電話用送信電力制御方法。 - 該受信信号(IRX)のレベルは、予め設定された基準レベル(SREF)と比較され、該対応する次の送信信号のレベルは、該比較の結果(COMP)により制御可能である、請求項7に記載の方法。
- 該送信電力レベルは、該送信信号(ITX)が該基地局までエラーなしで伝播するに可能な最低のレベル(SREG)まで制御可能である、請求項7又は請求項8に記載の方法。
- 該受信信号(IRX)のレベルは、無線周波信号から測定される、請求項7に記載の方法。
- 該受信信号(IRX)の測定が発生している測定期間と実質的に同一の長さの時間を持つ送信タイムスロット及び受信タイムスロットを有する無線電話システムで動作可能である、請求項7に記載の方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI930515A FI96554C (fi) | 1993-02-05 | 1993-02-05 | Aikajakoinen solukkoradiopuhelinjärjestelmä ja radiopuhelin sitä varten |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP01343194A Division JP3636373B2 (ja) | 1993-02-05 | 1994-02-07 | 無線電話機用電力制御装置及び方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2004048784A true JP2004048784A (ja) | 2004-02-12 |
Family
ID=8537203
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP01343194A Expired - Lifetime JP3636373B2 (ja) | 1993-02-05 | 1994-02-07 | 無線電話機用電力制御装置及び方法 |
JP2003304151A Ceased JP2004048784A (ja) | 1993-02-05 | 2003-08-28 | 無線電話用電力制御装置及び方法 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP01343194A Expired - Lifetime JP3636373B2 (ja) | 1993-02-05 | 1994-02-07 | 無線電話機用電力制御装置及び方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US5564074A (ja) |
EP (1) | EP0610030B1 (ja) |
JP (2) | JP3636373B2 (ja) |
DE (1) | DE69432539T2 (ja) |
ES (1) | ES2197156T3 (ja) |
FI (1) | FI96554C (ja) |
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JP5309266B1 (ja) * | 2013-01-24 | 2013-10-09 | パナソニック株式会社 | 無線通信装置および送信電力制御方法 |
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-
1994
- 1994-01-27 EP EP94300623A patent/EP0610030B1/en not_active Expired - Lifetime
- 1994-01-27 DE DE69432539T patent/DE69432539T2/de not_active Expired - Lifetime
- 1994-01-27 ES ES94300623T patent/ES2197156T3/es not_active Expired - Lifetime
- 1994-02-07 JP JP01343194A patent/JP3636373B2/ja not_active Expired - Lifetime
-
1995
- 1995-06-06 US US08/471,267 patent/US5564074A/en not_active Expired - Lifetime
-
2003
- 2003-08-28 JP JP2003304151A patent/JP2004048784A/ja not_active Ceased
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101315193B1 (ko) | 2012-02-06 | 2013-10-07 | 알트론 주식회사 | 이동 통신 중계기의 출력 전력 제어 시스템 및 방법 |
JP5309266B1 (ja) * | 2013-01-24 | 2013-10-09 | パナソニック株式会社 | 無線通信装置および送信電力制御方法 |
Also Published As
Publication number | Publication date |
---|---|
JPH06303181A (ja) | 1994-10-28 |
US5564074A (en) | 1996-10-08 |
DE69432539D1 (de) | 2003-05-28 |
EP0610030A2 (en) | 1994-08-10 |
FI96554C (fi) | 1996-07-10 |
JP3636373B2 (ja) | 2005-04-06 |
FI96554B (fi) | 1996-03-29 |
EP0610030B1 (en) | 2003-04-23 |
ES2197156T3 (es) | 2004-01-01 |
FI930515A0 (fi) | 1993-02-05 |
EP0610030A3 (en) | 1999-09-08 |
DE69432539T2 (de) | 2004-02-26 |
FI930515A (fi) | 1994-08-06 |
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