JP5461688B2 - 電力制御および干渉調整のための方法および装置 - Google Patents
電力制御および干渉調整のための方法および装置 Download PDFInfo
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- JP5461688B2 JP5461688B2 JP2012507417A JP2012507417A JP5461688B2 JP 5461688 B2 JP5461688 B2 JP 5461688B2 JP 2012507417 A JP2012507417 A JP 2012507417A JP 2012507417 A JP2012507417 A JP 2012507417A JP 5461688 B2 JP5461688 B2 JP 5461688B2
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- relay node
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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
- H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
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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
- H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
- H04W52/346—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading distributing total power among users or channels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
-
- 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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- 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
- H04W52/38—TPC being performed in particular situations
- H04W52/46—TPC being performed in particular situations in multi hop networks, e.g. wireless relay networks
-
- 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
- H04W52/32—TPC of broadcast or control channels
- H04W52/322—Power control of broadcast channels
-
- 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
- H04W52/38—TPC being performed in particular situations
- H04W52/48—TPC being performed in particular situations during retransmission after error or non-acknowledgment
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Description
本出願は、2009年4月24日に出願された米国仮出願第61/214,508号の優先権を主張するものである。
Claims (10)
- 中継ノードが配置されたカバレッジ領域を有する基地局によっても使用されるセル識別子を使用する前記中継ノードを介して通信する方法であって、
(A)移動局が前記中継ノードの通信範囲内にあると判定するステップと、
(B)前記中継ノードおよび前記基地局からの少なくとも1つの送信の合計送信電力が選択された送信電力限界に対応するように、前記中継ノードからの送信電力を制御するステップと、
(C)前記基地局によって決定されるスケジュールに基づいて前記基地局および前記中継ノードからのダウンリンク送信のタイミングを調整するステップと、
(D)前記移動局と前記中継ノードとの間のリンクに関するアップリンク情報に基づいて少なくとも1つのアップリンク制御パラメータを前記基地局で設定するステップとを含む、方法。 - ステップ(A)が、
前記中継ノードによって検出された前記移動局からの少なくとも1つの送信の検出された強度が選択された閾値を超えるかどうかを判定するステップを含み、
前記移動局からの前記少なくとも1つの送信が、
PUCCH(物理アップリンク制御チャネル)上の送信、
PUSCH(物理アップリンク共有チャネル)上の送信、または
SRS(サウンディング基準信号)送信、
のうちの少なくとも1つを含み、
前記検出された強度が前記選択された閾値に少なくとも等しいとき、前記移動局が前記中継ノードの前記通信範囲にあると判定される、請求項1に記載の方法。 - 前記移動局が前記中継ノードの前記通信範囲内にある前に、前記選択された送信電力限界が前記基地局によって使用される送信電力に対応し、ステップ(B)が、
同期チャネルの基地局の送信電力を現在のレベルに維持するステップと、
前記中継ノードが前記同期チャネル上で送信するのを妨げるステップとを含む、請求項1に記載の方法。 - ステップ(B)が、
前記移動局が前記中継ノードの前記通信範囲内にあると判定するステップに応答して、基準信号、制御チャネルまたはダウンリンク共有チャネルのうちの少なくとも1つの現在の基地局の送信電力を選択された量だけ低減するステップと、
前記基準信号、制御チャネルまたはダウンリンク共有チャネルのうちの前記少なくとも1つの中継ノードの送信電力を使用するステップとを含み、前記中継ノードの送信電力が前記選択された量と等しくなる、請求項1に記載の方法。 - ステップ(B)が、
前記中継ノードおよび前記基地局から少なくとも1つの制御チャネル信号を同時に送信するステップを含む、請求項1に記載の方法。 - ステップ(C)が、
前記基地局からの情報のダウンリンク送信を選択された時間にスケジュールするステップと、
前記選択された時間および前記情報を前記選択された時間の前に前記中継ノードに提供するステップと、
前記情報を前記選択された時間に前記基地局および前記中継ノードから送信するステップとを含む、請求項1に記載の方法。 - ステップ(D)が、
アップリンクチャネル状態情報を前記中継ノードで判定するステップと、
前記判定されたチャネル状態情報を前記基地局に提供するステップと、
前記移動局用のアップリンク無線リソースを割り当てることまたは変調符号化方式を選択することのうちの少なくとも1つのために前記提供されたチャネル状態情報を使用するステップとを含む、請求項1に記載の方法。 - 前記基地局および前記中継ノードから前記移動局に提供された唯一のセル固有の基準信号として、セル固有の基準信号を前記基地局から送信するステップを含む、請求項1に記載の方法。
- ダウンリンクHARQ(ハイブリッド自動再送要求)パケットを前記基地局から前記中継ノードおよび前記移動局に送信するステップと、
前記移動局からのNAK(否定応答)を前記基地局および前記中継ノードで受け取るステップと、
前記HARQパケットを前記基地局から前記移動局に再送するステップと、
前記移動局が前記再送されたHARQパケットを前記基地局から受け取るのとほぼ同時に、前記移動局が前記HARQパケットを前記中継ノードから受け取るように、前記HARQパケットを前記中継ノードから前記移動局に送信するステップと、
前記移動局からのACK(肯定応答)を前記中継ノードで受け取るステップと、
前記受け取られたACKを前記中継ノードから前記基地局に通信するステップとを含む、請求項1に記載の方法。 - 前記移動局からのアップリンクHARQ(ハイブリッド自動再送要求)パケットを前記基地局および前記中継ノードで受け取るステップと、
前記基地局が前記HARQパケットを成功裏に復号しなかった場合、NAK(否定応答)を前記基地局から前記移動局に送信するステップと、
前記HARQパケットが前記中継ノードで成功裏に復号されたことを示すACK(肯定応答)を前記中継ノードから前記基地局に通信するステップと、
前記HARQパケットを前記移動局から前記基地局に再送するステップと、
前記基地局が前記移動局から直接受け取られた前記HARQパケットを成功裏に復号しなかった場合でも、前記移動局がもはや前記HARQパケットを送信しないように、ACKを少なくとも前記中継ノードから前記移動局に送信するステップとを含む、請求項1に記載の方法。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
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US21450809P | 2009-04-24 | 2009-04-24 | |
US61/214,508 | 2009-04-24 | ||
US12/766,031 | 2010-04-23 | ||
PCT/US2010/032198 WO2010124182A1 (en) | 2009-04-24 | 2010-04-23 | Method and apparatus for power control and interference coordination for type-ii relays in e-utra |
US12/766,031 US9445380B2 (en) | 2009-04-24 | 2010-04-23 | Method and apparatus for power control and interference coordination |
Publications (2)
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JP2012525079A JP2012525079A (ja) | 2012-10-18 |
JP5461688B2 true JP5461688B2 (ja) | 2014-04-02 |
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JP2012507417A Expired - Fee Related JP5461688B2 (ja) | 2009-04-24 | 2010-04-23 | 電力制御および干渉調整のための方法および装置 |
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US (1) | US9445380B2 (ja) |
EP (1) | EP2422558B1 (ja) |
JP (1) | JP5461688B2 (ja) |
KR (1) | KR101321425B1 (ja) |
CN (1) | CN102428732B (ja) |
WO (1) | WO2010124182A1 (ja) |
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- 2010-04-23 JP JP2012507417A patent/JP5461688B2/ja not_active Expired - Fee Related
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WO2010124182A1 (en) | 2010-10-28 |
KR101321425B1 (ko) | 2013-10-23 |
JP2012525079A (ja) | 2012-10-18 |
EP2422558A1 (en) | 2012-02-29 |
CN102428732B (zh) | 2016-05-11 |
EP2422558B1 (en) | 2016-01-13 |
US9445380B2 (en) | 2016-09-13 |
CN102428732A (zh) | 2012-04-25 |
KR20120017051A (ko) | 2012-02-27 |
US20100272009A1 (en) | 2010-10-28 |
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