JP2010246164A - 通信端末装置及び送信方法 - Google Patents
通信端末装置及び送信方法 Download PDFInfo
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- H04L5/00—Arrangements affording multiple use of the transmission path
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- 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
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- H04B7/00—Radio transmission systems, i.e. using radiation field
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- 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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- 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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- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0042—Intra-user or intra-terminal allocation
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- 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
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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
- H04L5/0058—Allocation criteria
- H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
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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
- H04L5/0058—Allocation criteria
- H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority
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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
- H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- 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
- H04W72/04—Wireless resource allocation
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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
- 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
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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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
- 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
- H04W72/542—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
- 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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- Quality & Reliability (AREA)
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- Detection And Prevention Of Errors In Transmission (AREA)
Abstract
【解決手段】回線品質情報取出部103は、受信信号よりCQIを抽出する。割当制御部104は、各ユーザの通信端末装置の要求伝送率情報等及びCQIに基づいて、各通信端末装置の要求伝送率を満たすように、通信端末装置毎にサブキャリアを割り当てるとともに変調方式を選択する。要求サブキャリア数決定部105は、各ユーザの通信端末装置の要求伝送率情報等に基づいて、各通信端末装置の要求伝送率を満たすように、通信端末装置毎に割り当てるサブキャリア数を決定する。要求サブキャリア数情報生成部107は、通信端末装置毎に割り当てたサブキャリア数情報を生成する。サブキャリア割当部110は、選択されたサブキャリアにパケットデータを割り当てる。変調部111−1〜111−Nは、各サブキャリアに割り当てられたパケットデータを適応変調する。
【選択図】図3
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 (3)
- 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位置を示す第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示す情報を受信する受信部と、
前記情報に基づいて、前記全てのサブキャリアのCQIを送信し、若しくは前記第1の情報及び前記第2の情報を送信する送信部と、
を有する通信端末装置。 - 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位置を示す第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示す情報を受信し、
前記情報に基づいて、前記全てのサブキャリアのCQIを送信し、若しくは前記第1の情報及び前記第2の情報を送信する、
送信方法。 - 全てのサブキャリアのCQIを送信することを示す情報を受信し、
前記情報に基づいて、前記全てのサブキャリアのCQIを送信する、
送信方法。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010162959A JP4872012B2 (ja) | 2003-08-20 | 2010-07-20 | 通信端末装置及び送信方法 |
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|---|---|---|---|
| JP2003295972 | 2003-08-20 | ||
| JP2003295972 | 2003-08-20 | ||
| JP2010162959A JP4872012B2 (ja) | 2003-08-20 | 2010-07-20 | 通信端末装置及び送信方法 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2009235397A Division JP4722212B2 (ja) | 2003-08-20 | 2009-10-09 | 基地局装置及び受信方法 |
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| JP2011224849A Division JP5014506B2 (ja) | 2003-08-20 | 2011-10-12 | 基地局装置及び受信方法 |
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| Publication Number | Publication Date |
|---|---|
| JP2010246164A true JP2010246164A (ja) | 2010-10-28 |
| JP4872012B2 JP4872012B2 (ja) | 2012-02-08 |
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| JP2005513364A Expired - Lifetime JP4490921B2 (ja) | 2003-08-20 | 2004-08-20 | 基地局装置及び受信方法 |
| JP2009235397A Expired - Lifetime JP4722212B2 (ja) | 2003-08-20 | 2009-10-09 | 基地局装置及び受信方法 |
| JP2010162959A Expired - Lifetime JP4872012B2 (ja) | 2003-08-20 | 2010-07-20 | 通信端末装置及び送信方法 |
| JP2011224849A Expired - Lifetime JP5014506B2 (ja) | 2003-08-20 | 2011-10-12 | 基地局装置及び受信方法 |
| JP2012089168A Expired - Lifetime JP5362067B2 (ja) | 2003-08-20 | 2012-04-10 | 通信端末装置及び送信方法 |
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| JP2005513364A Expired - Lifetime JP4490921B2 (ja) | 2003-08-20 | 2004-08-20 | 基地局装置及び受信方法 |
| JP2009235397A Expired - Lifetime JP4722212B2 (ja) | 2003-08-20 | 2009-10-09 | 基地局装置及び受信方法 |
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| JP2011224849A Expired - Lifetime JP5014506B2 (ja) | 2003-08-20 | 2011-10-12 | 基地局装置及び受信方法 |
| JP2012089168A Expired - Lifetime JP5362067B2 (ja) | 2003-08-20 | 2012-04-10 | 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) | KR101225170B1 (ja) |
| CN (3) | CN102932125B (ja) |
| BR (1) | BRPI0413694B1 (ja) |
| ES (2) | ES2904814T3 (ja) |
| HU (1) | HUE043293T2 (ja) |
| TR (1) | TR201907774T4 (ja) |
| WO (1) | WO2005020489A1 (ja) |
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