JP2015133744A - 適応変調および符号化技術のための共通制御チャネルのアップリンク電力制御 - Google Patents
適応変調および符号化技術のための共通制御チャネルのアップリンク電力制御 Download PDFInfo
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- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/146—Uplink power control
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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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
- H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
- H04W52/228—TPC being performed according to specific parameters taking into account previous information or commands using past power values or information
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- H04W52/26—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]
- H04W52/262—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service] taking into account adaptive modulation and coding [AMC] scheme
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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
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Abstract
【解決手段】無線デジタル符号分割多重アクセス技術を使用する方法およびシステムであって、基地局がユーザ装置UEから受信したすべてのタイム・スロットでアップリンク干渉を測定し、アップリンク制御チャネルに対する要求を決定する、改善された無線資源の利用率を達成し、ユーザ・サービスにより高いデータ転送速度を提供するために適応変調および符号化が利用される方法およびシステム。基地局は、タイム・スロットのアップリンク干渉と、場合によっては品質マージンの指示を示す特定のアップリンク制御チャネルの割り振りをUEに送信する。UEは、UEによってなされた経路損失決定と、アップリンク干渉と、任意選択の品質マージンとに基づいて適切なアップリンク電力レベルを決定する。次いでUEは、これらの決定に応答してアップリンク通信を開始する。
【選択図】図2
Description
上式で、PLはアップリンク共通制御チャネル通信の経路損失であり、Iccはその干渉レベルである。経路損失(PL)は次のように計算することができる。
上式で、TREFはBS12での基準信号の電力であり、RUEはUE30での基準信号の受信電力である。
上式で、PLはアップリンク共通制御チャネル通信の経路損失であり、QMはその所望の品質マージンであり、Iccはその干渉レベルである。経路損失(PL)は次のように計算することができる。
上式で、TREFはBS12での基準信号の電力であり、RUEはUEでの基準信号の受信電力である。
14 拡散/変調装置
18 共通制御チャネル品質監視装置
20 集計(summing)装置
22 アイソレータ/スイッチ
24 アンテナ
25 無線リンク
26 タイム・スロット干渉測定装置
28 アップリンク共通制御チャネル受信機
30 ユーザ装置UE
32 アンテナ
34 アイソレータ/スイッチ
36 基準チャネル受信機
42 経路損失計算装置
44 電力レベル計算装置
48 信号送り受信機(signaling receiver)
50 電力増幅機
Claims (3)
- ユーザ装置(UE)であって、
基地局からダウンリンク制御チャネル上で制御情報を受信するように構成された回路を備え、前記制御情報は第1の情報および第2の情報を含み、前記第1の情報はアップリンクチャネルの割り当てであり、前記第2の情報は前記アップリンクチャネルのための変調および符号化を得るために使用され、
前記回路は、前記制御情報を受信することに応じて、少なくとも1つのタイムスロットを含む時間間隔における前記割り当てられたアップリンクチャネルにおける送信のための通信を生成するようにさらに構成され、前記通信は適応変調および符号化を含み、第2の通信の送信電力レベルは少なくとも前記第2の情報および前記UEにより測定された経路損失から得られる、UE。 - 前記UEは適応変調および符号化報告を送信すべきであると前記基地局が決定することに応じて、前記制御情報は前記基地局から前記UEへ送信される、請求項1に記載のUE。
- ユーザ装置(UE)により、基地局からダウンリンク制御チャネル上で制御情報を受信することであり、前記制御情報は第1の情報および第2の情報を含み、前記第1の情報はアップリンクチャネルの割り当てであり、前記第2の情報は前記アップリンクチャネルのための変調および符号化を得るために使用される、ことと、
前記制御情報を受信することに応じて、前記UEにより、少なくとも1つのタイムスロットを含む時間間隔における前記割り当てられたアップリンクチャネルにおける送信のための通信を生成することであって、前記通信は適応変調および符号化を含み、第2の通信の送信電力レベルは少なくとも前記第2の情報および前記UEにより測定された経路損失から得られる、ことと
を含む、方法。
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US10/100,383 US6587697B2 (en) | 2001-05-14 | 2002-03-18 | Common control channel uplink power control for adaptive modulation and coding techniques |
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JP2005277911A Expired - Fee Related JP4455466B2 (ja) | 2001-05-14 | 2005-09-26 | 適応変調および符号化技術のための共通制御チャネルのアップリンク電力制御 |
JP2009217197A Expired - Lifetime JP5292239B2 (ja) | 2001-05-14 | 2009-09-18 | 適応変調および符号化技術のための共通制御チャネルのアップリンク電力制御 |
JP2012109795A Ceased JP2012186835A (ja) | 2001-05-14 | 2012-05-11 | 適応変調および符号化技術のための共通制御チャネルのアップリンク電力制御 |
JP2012276130A Expired - Lifetime JP5902604B2 (ja) | 2001-05-14 | 2012-12-18 | 適応変調および符号化技術のための共通制御チャネルのアップリンク電力制御 |
JP2014009898A Expired - Lifetime JP5848371B2 (ja) | 2001-05-14 | 2014-01-22 | 適応変調および符号化技術のための共通制御チャネルのアップリンク電力制御 |
JP2015052384A Expired - Lifetime JP5966037B2 (ja) | 2001-05-14 | 2015-03-16 | 適応変調および符号化技術のための共通制御チャネルのアップリンク電力制御 |
JP2016076113A Pending JP2016146666A (ja) | 2001-05-14 | 2016-04-05 | 適応変調および符号化技術のための共通制御チャネルのアップリンク電力制御 |
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JP2005277911A Expired - Fee Related JP4455466B2 (ja) | 2001-05-14 | 2005-09-26 | 適応変調および符号化技術のための共通制御チャネルのアップリンク電力制御 |
JP2009217197A Expired - Lifetime JP5292239B2 (ja) | 2001-05-14 | 2009-09-18 | 適応変調および符号化技術のための共通制御チャネルのアップリンク電力制御 |
JP2012109795A Ceased JP2012186835A (ja) | 2001-05-14 | 2012-05-11 | 適応変調および符号化技術のための共通制御チャネルのアップリンク電力制御 |
JP2012276130A Expired - Lifetime JP5902604B2 (ja) | 2001-05-14 | 2012-12-18 | 適応変調および符号化技術のための共通制御チャネルのアップリンク電力制御 |
JP2014009898A Expired - Lifetime JP5848371B2 (ja) | 2001-05-14 | 2014-01-22 | 適応変調および符号化技術のための共通制御チャネルのアップリンク電力制御 |
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JP (8) | JP4454938B2 (ja) |
KR (9) | KR101024873B1 (ja) |
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AU (1) | AU2002259200B2 (ja) |
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US6198734B1 (en) * | 1996-10-12 | 2001-03-06 | Northern Telecom Incorporated | Adaptive radio communications system |
US6167031A (en) * | 1997-08-29 | 2000-12-26 | Telefonaktiebolaget Lm Ericsson (Publ) | Method for selecting a combination of modulation and channel coding schemes in a digital communication system |
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