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1. (WO1996002985) RANDOM ACCESS SYSTEM FOR MOBILE COMMUNICATION
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1996/002985    International Application No.:    PCT/JP1995/001411
Publication Date: 01.02.1996 International Filing Date: 14.07.1995
IPC:
H04B 7/26 (2006.01), H04L 12/56 (2006.01), H04W 74/08 (2009.01), H04W 24/00 (2009.01), H04W 48/10 (2009.01), H04W 72/04 (2009.01), H04W 74/04 (2009.01)
Applicants: NTT MOBILE COMMUNICATIONS NETWORK INC. [JP/JP]; 10-1, Toranomon 2-chome, Minato-ku, Tokyo 105 (JP) (For All Designated States Except US).
WADA, Azusa [JP/JP]; (JP) (For US Only).
MAEBARA, Akihiro [JP/JP]; (JP) (For US Only).
OKAJIMA, Ichiro [JP/JP]; (JP) (For US Only).
KOBAYASHI, Katsumi [JP/JP]; (JP) (For US Only).
UCHIDA, Noriko [JP/JP]; (JP) (For US Only).
UEBAYASHI, Shinji [JP/JP]; (JP) (For US Only).
UMEDA, Narumi [JP/JP]; (JP) (For US Only)
Inventors: WADA, Azusa; (JP).
MAEBARA, Akihiro; (JP).
OKAJIMA, Ichiro; (JP).
KOBAYASHI, Katsumi; (JP).
UCHIDA, Noriko; (JP).
UEBAYASHI, Shinji; (JP).
UMEDA, Narumi; (JP)
Agent: KAWASAKI, Kenji; Takemoto Building 2F, 4-11, Kyobashi 1-chome, Chuo-ku, Tokyo 104 (JP)
Priority Data:
6/164104 15.07.1994 JP
Title (EN) RANDOM ACCESS SYSTEM FOR MOBILE COMMUNICATION
(FR) SYSTEME A ACCES SELECTIF POUR COMMUNICATION RADIOTELEPHONIQUE
Abstract: front page image
(EN)The transfer time of mobile communication is shortened by preferentially securing a required number of time slots used for transfer. A base station (BS) which has received a packet (P1) transmits a signal Busy and an echo signal at the end of a first time slot (TS) starting at time (t4). The station (BS) recognizes that another packet (1) following the packet (P1) is present, and transmits a signal Reserve at the end of a second time slot (TS) starting at time (t5). A mobile station (MS-A) recognizes that the first time slot has been secured by detecting the signal Busy and the echo signal and that the second time slot is also secured by detecting the signal Reserve. Thus high-speed transfer is performed by continuously using the first and second time slots.
(FR)On réduit le temps de transfert d'une communication radiotéléphonique en fixant de préférence un nombre requis d'intervalles de temps utilisé pour le transfert. Une station de base (SB) ayant reçu un paquet (P1) émet un signal Occupé et un signal d'écho à la fin d'un premier intervalle de temps (IT) commençant au moment t4. La station (SB) discerne la présence d'un autre paquet (1) suivant le paquet (P1), et émet un signal Réserve à la fin du second intervalle de temps (IT) commençant au moment t5. Une station mobile (SM-A) détermine que le premier intervalle de temps a été fixé en détectant le signal Occupé et le signal d'écho, et que le second intervalle de temps est également fixé en détectant le signal Réserve. Un transfert rapide est ainsi assuré au moyen des premier et second intervalles de temps.
Designated States: JP, US.
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)