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1. (WO2005112306) INTER-SYSTEM HANDOVER
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2005/112306 International Application No.: PCT/KR2005/000676
Publication Date: 24.11.2005 International Filing Date: 10.03.2005
IPC:
H04B 7/26 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
7
Radio transmission systems, i.e. using radiation field
24
for communication between two or more posts
26
at least one of which is mobile
Applicants:
SK TELECOM CO., LTD. [KR/KR]; 11, Euljiro 2-ga Jung-gu Seoul 100-844, KR (AllExceptUS)
JU, Jae-Young [KR/KR]; KR (UsOnly)
JOO, Young-Ho [KR/KR]; KR (UsOnly)
KIM, Hyun-Wook [KR/KR]; KR (UsOnly)
KIM, Young-Lak [KR/KR]; KR (UsOnly)
Inventors:
JU, Jae-Young; KR
JOO, Young-Ho; KR
KIM, Hyun-Wook; KR
KIM, Young-Lak; KR
Agent:
NAM, Sang-Sun; KAL Bldg. 3rd Fl. 41-3 Seosomun-Dong Jung-Gu Seoul 100-813, KR
Priority Data:
10-2004-001613510.03.2004KR
10-2004-001628610.03.2004KR
10-2004-001629410.03.2004KR
Title (EN) INTER-SYSTEM HANDOVER
(FR) TRANSFERT INTER-SYSTEME
Abstract:
(EN) A method of handover in a wireless communication system in which an asynchronous system and a synchronous system are mixed is disclosed. The method comprises the steps of: the asynchronous system ordering a dual mode mobile terminal to perform a handover from the asynchronous system to the synchronous system; when the handover order is received at the mobile terminal, the mobile terminal transmitting a frame or a preamble through a reverse traffic channel to the synchronous system, reporting to the synchronous system that the handover is completed and initiating a timer of the mobile terminal which is set according to a predetermined time; the mobile terminal switching from an asynchronous vocoder into a synchronous vocoder when the timer expires; and the wireless communication system switching vocoders of asynchronous and synchronous MSCs when the report is received.
(FR) L'invention concerne un procédé de transfert dans un système de communication sans fil, dans lequel un système asynchrone et un système synchrone sont mélangés. Ledit procédé comprend les étapes suivantes : le système asynchrone ordonne à un terminal mobile en mode double d'effectuer un transfert du système asynchrone vers le système synchrone ; lorsque l'ordre de transfert est reçu sur le terminal mobile, ce dernier transmet un cadre ou un préambule à travers un canal de trafic inverse vers le système synchrone, de façon à informer le système synchrone que le transfert est terminé et à activer un indicateur de durée du terminal mobile, utilisé selon une période prédéterminée ; le terminal mobile est commuté d'un codeur vocal asynchrone sur un codeur vocal synchrone, lorsque l'indicateur de durée expire ; et le système de communication sans fil commute les codeurs vocaux de centre de commutation mobile, lorsque le rapport est reçu.
front page image
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: Korean (KO)
Also published as:
JP2007528659US20080242304CN1973455IN1174/MUMNP/2006