JP5014506B2 - 基地局装置及び受信方法 - Google Patents
基地局装置及び受信方法 Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- 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 signaling, i.e. of overhead other than pilot signals
- H04L5/0057—Physical resource allocation for CQI
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
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- 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
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
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- H—ELECTRICITY
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- 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
- H04L5/0042—Arrangements for allocating sub-channels of the transmission path intra-user or intra-terminal allocation
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- H—ELECTRICITY
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- 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 signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
- H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
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- H—ELECTRICITY
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- H04L5/0058—Allocation criteria
- H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority
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- H—ELECTRICITY
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- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
- H04W64/003—Locating users or terminals or network equipment for network management purposes, e.g. mobility management locating network equipment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
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-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
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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
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Description
図3は、本発明の実施の形態1に係る無線通信装置100の構成を示すブロック図である。
α:定数、
Rk:通信端末装置200−kの要求伝送率(kはユーザ番号で、かつ2以上の自然数)、
r:伝送率がもっとも高いモジュレーション・コーディング・スキームズを使用する際の1つのサブキャリアの伝送率、または、平均信号対雑音比と定数γ(例えば、γ=0〜3dBの定数)とを加算した値の回線品質値より要求パケットエラーレートを満たすモジュレーション・コーディング・スキームズを使用する際の1つのサブキャリアの伝送率、
β:定数(例えば、β=2.0〜4.0)、
Rk:通信端末装置200−kの要求伝送率(kはユーザ番号で、かつ2以上の自然数)、
N:全サブキャリア数、
Sk>(Q×N)/(Q+log2N) ・・・(3)
ここで、Q:SNR情報を量子化するのに必要な符号化ビット数、
N:全サブキャリア数、である。
図7は、本発明の実施の形態2に係る無線通信装置500の構成を示すブロック図である。なお、図7においては、図3と同一構成である部分には同一の符号を付してその説明は省略する。また、通信端末装置の構成は図4と同一構成であるので、その説明は省略する。
Sk(t)=δ×S′k(t−1) ・・・(4)
ここで、Sk(t):現フレームのサブキャリア数、
S′k(t−1):現フレームの1つ前のフレームにて通信端末装置200−kに実際に割り当てられたサブキャリア数、
δ:定数(ただし、2.0≦δ)、である。
102、202 受信RF部
103 回線品質情報取出部
104 割当制御部
105 要求サブキャリア数決定部
106 ユーザ情報蓄積部
107 要求サブキャリア数情報生成部
108 割当情報生成部
109 制御情報多重部
110 サブキャリア割当部
111−1〜111−N 変調部
112 切替部
113 IFFT部
114 GI挿入部
115、216 送信RF部
203 GI除去部
204 FFT部
205 回線品質推定部
206 回線推定部
207 等化部
208 分離部
209−1〜209−N 復調部
210 P/S部
211 制御情報取出部
212 割当情報取出部
213 サブキャリア情報取出部
214 サブキャリア選択部
215 回線品質情報形成部
Claims (2)
- 通信端末装置からCQIを受信する基地局装置であって、
各通信端末装置が前記基地局装置に対し、全てのサブキャリアのCQIを送信するか、若しくは、複数のサブキャリアの番号を示す第1の情報と前記複数のサブキャリアのCQIに関する第2の情報との総データ量が前記全てのサブキャリアのCQIの総データ量よりも小さい、前記第1の情報と前記第2の情報とを送信するかを、前記各通信端末装置に対して決定する決定部と、
前記決定部が前記各通信端末装置に対して決定した決定内容を示す情報を前記各通信端末装置に送信する送信部と、
前記全てのサブキャリアのCQIを送信することが決定された通信端末装置からはサブキャリアの位置を示す情報が付加されない前記全てのサブキャリアのCQIを受信し、前記第1の情報と前記第2の情報とを送信することが決定された通信端末装置からは、前記全てのサブキャリアのCQIを受信せずに前記第1の情報と前記第2の情報とを受信する受信部と、
を有する基地局装置。 - 基地局装置が通信端末装置からCQIを受信する受信方法であって、
各通信端末装置が前記基地局装置に対し、全てのサブキャリアのCQIを送信するか、若しくは、複数のサブキャリアの番号を示す第1の情報と前記複数のサブキャリアのCQIに関する第2の情報との総データ量が前記全てのサブキャリアのCQIの総データ量よりも小さい、前記第1の情報と前記第2の情報とを送信するかを、前記基地局装置が前記各通信端末装置に対して決定し、
前記各通信端末装置に対して決定された決定内容を示す情報を前記基地局装置から前記各通信端末装置に送信し、
前記全てのサブキャリアのCQIを送信することが決定された通信端末装置からはサブキャリアの位置を示す情報を伴わずに前記全てのサブキャリアのCQIを受信し、前記第1の情報と前記第2の情報とを送信することが決定された通信端末装置からは、前記全てのサブキャリアのCQIを受信せずに前記第1の情報と前記第2の情報とを受信する、
受信方法。
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JP2009235397A Active JP4722212B2 (ja) | 2003-08-20 | 2009-10-09 | 基地局装置及び受信方法 |
JP2010162959A Active JP4872012B2 (ja) | 2003-08-20 | 2010-07-20 | 通信端末装置及び送信方法 |
JP2011224849A Active JP5014506B2 (ja) | 2003-08-20 | 2011-10-12 | 基地局装置及び受信方法 |
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JP2010162959A Active JP4872012B2 (ja) | 2003-08-20 | 2010-07-20 | 通信端末装置及び送信方法 |
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US (13) | US7522544B2 (ja) |
EP (2) | EP3484089B1 (ja) |
JP (5) | JP4490921B2 (ja) |
KR (6) | KR101109839B1 (ja) |
CN (3) | CN102932125B (ja) |
BR (1) | BRPI0413694B1 (ja) |
ES (2) | ES2728783T3 (ja) |
HU (1) | HUE043293T2 (ja) |
TR (1) | TR201907774T4 (ja) |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2012170116A (ja) * | 2003-08-20 | 2012-09-06 | Panasonic Corp | 通信端末装置及び送信方法 |
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US8514692B2 (en) | 2003-02-24 | 2013-08-20 | Qualcomm Incorporated | Methods and apparatus for determining, communicating and using information which can be used for interference control purposes |
US9661519B2 (en) | 2003-02-24 | 2017-05-23 | Qualcomm Incorporated | Efficient reporting of information in a wireless communication system |
US8811348B2 (en) | 2003-02-24 | 2014-08-19 | Qualcomm Incorporated | Methods and apparatus for generating, communicating, and/or using information relating to self-noise |
US7218948B2 (en) | 2003-02-24 | 2007-05-15 | Qualcomm Incorporated | Method of transmitting pilot tones in a multi-sector cell, including null pilot tones, for generating channel quality indicators |
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