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1. WO1999059268 - COMMUNICATION METHOD AND COMMUNICATION DEVICE

Publication Number WO/1999/059268
Publication Date 18.11.1999
International Application No. PCT/JP1999/002426
International Filing Date 11.05.1999
IPC
H04B 1/707 2011.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
69Spread spectrum techniques
707using direct sequence modulation
H04W 48/16 2009.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
48Access restriction; Network selection; Access point selection
16Discovering; Processing access restriction or access information
H04B 7/005 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
005Control of transmission; Equalising
H04W 36/08 2009.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
36Handoff or reselecting arrangements
08Reselecting an access point
H04W 52/28 2009.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
52Power management
04Transmission power control
18TPC being performed according to specific parameters
28using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non-transmission
CPC
H04B 1/707
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
69Spread spectrum techniques
707using direct sequence modulation
H04W 36/08
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
36Hand-off or reselection arrangements
08Reselecting an access point
H04W 48/16
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
48Access restriction
16Discovering, processing access restriction or access information
H04W 52/287
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
52Power management, e.g. TPC [Transmission Power Control], power saving or power classes
04TPC
18TPC being performed according to specific parameters
28using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
287when the channel is in stand-by
Applicants
  • NTT MOBILE COMMUNICATIONS NETWORK INC. [JP]/[JP] (AllExceptUS)
  • NAKAGOMI, Hisashi [JP]/[JP] (UsOnly)
  • TAKAMI, Tadao [JP]/[JP] (UsOnly)
  • HIGASHI, Akihiro [JP]/[JP] (UsOnly)
  • NAGATA, Kiyohito [JP]/[JP] (UsOnly)
Inventors
  • NAKAGOMI, Hisashi
  • TAKAMI, Tadao
  • HIGASHI, Akihiro
  • NAGATA, Kiyohito
Agents
  • KAWASAKI, Kenji
Priority Data
10/13061313.05.1998JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) COMMUNICATION METHOD AND COMMUNICATION DEVICE
(FR) PROCEDE ET DISPOSITIF DE COMMUNICATION
Abstract
(EN)
Conventionally, when a mobile station in a CDMA mobile communication system searches for a channel other than the communication channel, the communication with a base station in the cell is sometimes interrupted. A method of the invention prevents the loss of information due to the interruption. The method comprises the first transmission step (the period for which the transmission power is p as shown in Fig. 10c) of transmitting signals at a transmission rate (R1) and at a transmission output level (P1) from the mobile station to the base station, the stop step (the period for which the transmission power is 0 as shown in Fig. 10c) of stopping the signal transmission from the mobile station to the base station, and the second transmission step (the period for which the transmission power is 2p as shown in Fig. 10c) of transmitting signals at a transmission rate (R2) higher than the transmission rate (R1) and at a transmission output level (P2) higher than the transmission output level (P1). During the second transmission step, information not transmitted during the stop step can be transmitted.
(FR)
Normalement, il arrive que lorsqu'une station mobile dans un système de communication mobile AMCR recherche un canal autre que le canal de communication, la télécommunication avec une station de base de la cellule soit interrompue. Le procédé de l'invention permet d'éviter la perte d'informations due à cette interruption. Ledit procédé comprend une première opération de transmission (période durant laquelle la puissance de transmission est représentée par p, comme l'illustre la Fig. 10c) consistant à transmettre des signaux de la station mobile à la station de base, à une vitesse de transmission (R1) et à un niveau de sortie de transmission (P1). Ensuite, une opération d'interruption (période durant laquelle la puissance de transmission est égale à 0, comme l'illustre la Fig. 10c) consiste à interrompre la transmission des signaux entre la station mobile et la station de base. La seconde opération de transmission (période durant laquelle la puissance de transmission est représentée par 2p, comme l'illustre la Fig. 10c) consiste à transmettre les signaux à une vitesse de transmission (R2), supérieure à la vitesse de transmission (R1), et à un niveau de sortie de transmission (P2), supérieur au niveau de sortie de transmission (P1). Au cours de cette seconde opération de transmission, il est alors possible de transmettre les informations non transmises durant la première opération.
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