JP4671771B2 - 無線通信装置及び無線通信方法 - Google Patents
無線通信装置及び無線通信方法 Download PDFInfo
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- JP4671771B2 JP4671771B2 JP2005170752A JP2005170752A JP4671771B2 JP 4671771 B2 JP4671771 B2 JP 4671771B2 JP 2005170752 A JP2005170752 A JP 2005170752A JP 2005170752 A JP2005170752 A JP 2005170752A JP 4671771 B2 JP4671771 B2 JP 4671771B2
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- Prior art keywords
- transmission power
- channel
- coding rate
- modulation scheme
- control channel
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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
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
- H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
-
- 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
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
-
- 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
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
- H04L1/0016—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy involving special memory structures, e.g. look-up tables
-
- 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
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
- H04L1/0019—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy in which mode-switching is based on a statistical approach
- H04L1/0021—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy in which mode-switching is based on a statistical approach in which the algorithm uses adaptive thresholds
-
- 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
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
- H04L5/0057—Physical resource allocation for CQI
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/18—TPC being performed according to specific parameters
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
- H04W52/32—TPC of broadcast or control channels
- H04W52/325—Power control of control or pilot channels
-
- 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
- H04L1/1607—Details of the supervisory signal
- H04L1/1671—Details of the supervisory signal the supervisory signal being transmitted together with control information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Artificial Intelligence (AREA)
- Physics & Mathematics (AREA)
- Probability & Statistics with Applications (AREA)
- Mobile Radio Communication Systems (AREA)
Description
3GPP,TR25.848:"Physical Layer Aspects of UTRAN High Speed Downlink Packet Access"
受信したチャネル状態情報に基づいて、データチャネルの変調方式及び符号化率と制御チャネルの送信電力とを適応的に制御する無線通信装置であって、
データチャネルの変調方式及び符号化率の組み合わせと、制御チャネルの送信電力との間の対応関係を表すテーブルと、
通信相手が指定したデータチャネルの変調方式及び符号化率の組み合わせを示すチャネル状態情報を前記通信相手から受信する手段と、
前記通信相手が指定した変調方式及び符号化率によりデータチャネルを送信することに加えて、前記テーブルにおいて前記通信相手が指定した前記組み合わせに対応する送信電力により制御チャネルを送信する手段と
を備える無線通信装置である。
402 直交変調器; 404 局部発振器; 406 バンドパスフィルタ; 408 ミキサ; 410 局部発振器; 412 バンドパスフィルタ; 414 電力増幅器; 416 送信アンテナ
Claims (9)
- 受信したチャネル状態情報に基づいて、データチャネルの変調方式及び符号化率と制御チャネルの送信電力とを適応的に制御する無線通信装置であって、
データチャネルの変調方式及び符号化率の組み合わせと、制御チャネルの送信電力との間の対応関係を表すテーブルと、
通信相手が指定したデータチャネルの変調方式及び符号化率の組み合わせを示すチャネル状態情報を前記通信相手から受信する手段と、
前記通信相手が指定した変調方式及び符号化率によりデータチャネルを送信することに加えて、前記テーブルにおいて前記通信相手が指定した前記組み合わせに対応する送信電力により制御チャネルを送信する手段と
を備える無線通信装置。 - 当該無線通信装置が、移動通信システムの基地局に設けられる、請求項1記載の無線通信装置。
- 当該無線通信装置が、移動通信システムの移動局に設けられる、請求項1記載の無線通信装置。
- 前記テーブルは、チャネル状態情報の示す信号品質が良くなるにつれて、送信電力が小さくなるように、前記対応関係を定めている、請求項1記載の無線通信装置。
- 前記テーブルは、チャネル状態情報の示す信号品質が悪くなるにつれて、送信電力が大きくなるように、前記対応関係を定めている、請求項1記載の無線通信装置。
- 前記組み合わせに対応する前記送信電力が、前記通信相手から受信した再送制御情報に応じて補正される、請求項1記載の無線通信装置。
- 前記データチャネルの送信電力は一定であり、前記制御チャネルの変調方式及び符号化率は一定である、請求項1記載の無線通信装置。
- 通信相手が指定したデータチャネルの変調方式及び符号化率の組み合わせを示すチャネル状態情報を前記通信相手から受信し、
データチャネルの変調方式及び符号化率の組み合わせと、制御チャネルの送信電力との間の対応関係を表すテーブルにアクセスし、該テーブルにおいて前記通信相手が指定した前記組み合わせに対応する送信電力を選択し、
前記通信相手が指定した変調方式及び符号化率によりデータチャネルを送信することに加えて、選択した前記送信電力により制御チャネルを送信するステップ
を有する無線通信方法。 - 前記データチャネルの送信電力は一定であり、前記制御チャネルの変調方式及び符号化率は一定である、請求項8記載の無線通信方法。
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005170752A JP4671771B2 (ja) | 2005-06-10 | 2005-06-10 | 無線通信装置及び無線通信方法 |
EP06757071A EP1890401A4 (en) | 2005-06-10 | 2006-06-06 | DEVICE AND METHOD FOR WIRELESS COMMUNICATION |
BRPI0611953-0A BRPI0611953A2 (pt) | 2005-06-10 | 2006-06-06 | sistema e método de radiocomunicação |
KR1020077028731A KR101235572B1 (ko) | 2005-06-10 | 2006-06-06 | 무선통신장치 및 무선통신방법 |
PCT/JP2006/311332 WO2006132247A1 (ja) | 2005-06-10 | 2006-06-06 | 無線通信装置及び無線通信方法 |
CNA2006800259772A CN101223713A (zh) | 2005-06-10 | 2006-06-06 | 无线通信装置和方法 |
RU2007148550/09A RU2416163C2 (ru) | 2005-06-10 | 2006-06-06 | Система и способ радиосвязи |
US11/917,143 US20100220663A1 (en) | 2005-06-10 | 2006-06-06 | Communications system and method |
TW095120570A TW200707999A (en) | 2005-06-10 | 2006-06-09 | Wireless communication apparatus and wireless communication method |
Applications Claiming Priority (1)
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JP2005170752A JP4671771B2 (ja) | 2005-06-10 | 2005-06-10 | 無線通信装置及び無線通信方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006345363A JP2006345363A (ja) | 2006-12-21 |
JP4671771B2 true JP4671771B2 (ja) | 2011-04-20 |
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JP2005170752A Expired - Fee Related JP4671771B2 (ja) | 2005-06-10 | 2005-06-10 | 無線通信装置及び無線通信方法 |
Country Status (9)
Country | Link |
---|---|
US (1) | US20100220663A1 (ja) |
EP (1) | EP1890401A4 (ja) |
JP (1) | JP4671771B2 (ja) |
KR (1) | KR101235572B1 (ja) |
CN (1) | CN101223713A (ja) |
BR (1) | BRPI0611953A2 (ja) |
RU (1) | RU2416163C2 (ja) |
TW (1) | TW200707999A (ja) |
WO (1) | WO2006132247A1 (ja) |
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2006
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- 2006-06-06 RU RU2007148550/09A patent/RU2416163C2/ru not_active IP Right Cessation
- 2006-06-06 KR KR1020077028731A patent/KR101235572B1/ko not_active IP Right Cessation
- 2006-06-06 WO PCT/JP2006/311332 patent/WO2006132247A1/ja active Application Filing
- 2006-06-06 CN CNA2006800259772A patent/CN101223713A/zh active Pending
- 2006-06-06 EP EP06757071A patent/EP1890401A4/en not_active Withdrawn
- 2006-06-06 BR BRPI0611953-0A patent/BRPI0611953A2/pt not_active IP Right Cessation
- 2006-06-09 TW TW095120570A patent/TW200707999A/zh not_active IP Right Cessation
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KR101770205B1 (ko) | 2010-01-27 | 2017-08-23 | 엘지전자 주식회사 | 무선 접속 시스템에서 상향링크 데이터 버스트를 전송하기 위한 방법 및 장치 |
Also Published As
Publication number | Publication date |
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CN101223713A (zh) | 2008-07-16 |
RU2007148550A (ru) | 2009-07-20 |
TWI313550B (ja) | 2009-08-11 |
EP1890401A1 (en) | 2008-02-20 |
EP1890401A4 (en) | 2011-08-31 |
TW200707999A (en) | 2007-02-16 |
US20100220663A1 (en) | 2010-09-02 |
KR20080025674A (ko) | 2008-03-21 |
BRPI0611953A2 (pt) | 2010-10-13 |
RU2416163C2 (ru) | 2011-04-10 |
KR101235572B1 (ko) | 2013-02-22 |
JP2006345363A (ja) | 2006-12-21 |
WO2006132247A1 (ja) | 2006-12-14 |
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