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1. EP2106059 - Mobile wireless communication apparatus and wireless communication system

官庁 欧州特許庁(EPO)
出願番号 09005328
出願日 29.09.2005
公開番号 2106059
公開日 30.09.2009
公報種別 B1
IPC
H 電気
04
電気通信技術
L
デジタル情報の伝送,例.電信通信
7
受信機を送信機と同期させるための配置
04
同期信号による速度または位相の制御
08
同期信号が周期的に繰り返すもの
H 電気
04
電気通信技術
B
伝送
7
無線伝送方式,すなわち放射電磁界を用いるもの
24
二つ以上の地点間の通信のためのもの
26
少くとも一つの地点が移動できるもの
H 電気
04
電気通信技術
L
デジタル情報の伝送,例.電信通信
7
受信機を送信機と同期させるための配置
04
同期信号による速度または位相の制御
10
初期同期用のための配置
H04L 7/08
H04B 7/26
H04L 7/10
CPC
H04L 7/10
H04B 7/2681
H04J 3/0605
H04W 56/0085
出願人 JVC KENWOOD CORP
発明者 MAJIMA TAICHI
指定国 (国コード)
発明の名称
(DE) Mobile drahtlose Kommunikationsvorrichtung und drahtloses Kommunikationssystem
(EN) Mobile wireless communication apparatus and wireless communication system
(FR) Appareil de communication mobile sans fil et système de communication sans fil
要約
(EN)
Both a pre-word (PW) and a sync word (SW) are used to establish a synchronization or only the sync word (SW) is used to establish a synchronization in accordance with an operational status related to the synchronization in a mobile wireless communication apparatus. For example, during an initial synchronization with a control channel (110) being received, both the pre-word (PW) and the sync word (SW) are used to establish a synchronization when a calculation result in a synchronization calculating part exceeds a predetermined threshold value only once. During an initial synchronization with a direct communication channel (112) being received, both the pre-word (PW) and the sync word (SW) are used to establish a synchronization when the calculation result exceeds the predetermined threshold value once; or alternatively, only the sync word (SW) is used to establish a synchronization when the calculation result successively exceeds the predetermined threshold value twice. According to the present invention, the sync word is shortened so as to quickly establish a communication link, and the sync detection can be performed with high precision.