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1. WO2006098105 - ADAPTIVE MODULATION CONTROL SYSTEM, AND RADIO COMMUNICATION DEVICE

Publication Number WO/2006/098105
Publication Date 21.09.2006
International Application No. PCT/JP2006/302497
International Filing Date 14.02.2006
Chapter 2 Demand Filed 18.12.2006
IPC
H04B 7/26 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
24for communication between two or more posts
26at least one of which is mobile
H04J 11/00 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
11Orthogonal multiplex systems
CPC
H04L 1/0003
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
0002by adapting the transmission rate
0003by switching between different modulation schemes
H04L 1/0009
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
0009by adapting the channel coding
H04L 1/0036
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
0036arrangements specific to the receiver
H04L 5/0007
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
0001Arrangements for dividing the transmission path
0003Two-dimensional division
0005Time-frequency
0007the frequencies being orthogonal, e.g. OFDM(A), DMT
H04L 5/0046
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
003Arrangements for allocating sub-channels of the transmission path
0044allocation of payload
0046Determination of how many bits are transmitted on different sub-channels
H04L 5/006
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
003Arrangements for allocating sub-channels of the transmission path
0058Allocation criteria
006Quality of the received signal, e.g. BER, SNR, water filling
Applicants
  • シャープ株式会社 SHARP KABUSHIKI KAISHA [JP]/[JP] (AllExceptUS)
  • 野上 智造 NOGAMI, Toshizo (UsOnly)
  • 小野寺 毅 ONODERA, Takashi (UsOnly)
  • 坪井 秀和 TSUBOI, Hidekazu (UsOnly)
Inventors
  • 野上 智造 NOGAMI, Toshizo
  • 小野寺 毅 ONODERA, Takashi
  • 坪井 秀和 TSUBOI, Hidekazu
Agents
  • 福地 武雄 FUKUCHI, Takeo
Priority Data
2005-07820617.03.2005JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) ADAPTIVE MODULATION CONTROL SYSTEM, AND RADIO COMMUNICATION DEVICE
(FR) SYSTÈME ADAPTATIF DE COMMANDE DE MODULATION ET DISPOSITIF DE COMMUNICATION PAR RADIO
(JA) 適応変調制御システムおよび無線通信装置
Abstract
(EN)
[Problems] To reduce the degradation of transmission quality even in the situation of a high moving velocity. [Means for Solving the Problems] Provided is an adaptive modulation control system for selecting any of plural modulation parameters determined on the basis of plural modulation methods, error correction encoding percentages or their combinations, adaptively to a propagation path state. The adaptive modulation control system comprises a receiving state measurement unit (2) for measuring the receiving state of a signal received from a communication partner, a correction unit (3) for performing a correction to change the propagation path information indicating the measurement result of the propagation path state, on the basis of the receiving state measured, and a modulation parameter select unit (4) for selecting a modulation parameter corresponding to the propagation path information corrected.
(FR)
L’invention a pour objet de réduire la dégradation de la qualité de transmission même dans le cas d’une grande vitesse de déplacement. Par conséquent, l’invention concerne un système adaptatif de commande de modulation pour sélectionner des paramètres de modulation quelconques parmi plusieurs déterminés en se basant sur plusieurs méthodes de modulation, pourcentages de codage de correction d’erreur ou leurs combinaisons en s’adaptant à un état de chemin de propagation. Le système adaptatif de commande de modulation comprend une unité de mesure d’état de réception (2) pour mesurer l’état de réception d’un signal reçu d’un partenaire de communication, une unité de correction (3) pour effectuer une correction pour changer l’information de chemin de propagation indiquant le résultat de mesure de l’état de chemin de propagation sur la base de l’état de réception mesuré, et une unité de sélection de paramètre de modulation (4) pour sélectionner un paramètre de modulation correspondant à l’information corrigée de chemin de propagation.
(JA)
【課題】 移動速度が大きい状況においても、伝送品質の劣化を軽減する。 【解決手段】 複数の変調方式、誤り訂正の符号化率またはこれらの組み合わせに基づいて定められる複数の変調パラメータからいずれか一つの変調パラメータを、伝搬路状態に対応して適応的に選択する適応変調制御装置であって、通信相手先から受信した信号の受信状態を測定する受信状態測定部(2)と、伝搬路状態の測定結果を示す伝搬路情報を、前記測定された受信状態に基づいて変更する補正を行なう補正部(3)と、前記補正後の伝搬路情報に対応する変調パラメータを選択する変調パラメータ選択部(4)と、を備える。
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