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1. (WO2005018255) BASE STATION SYNCHRONIZATION DURING SOFT HANDOVER
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2005/018255 International Application No.: PCT/EP2004/006558
Publication Date: 24.02.2005 International Filing Date: 17.06.2004
IPC:
H04B 7/02 (2006.01) ,H04L 1/18 (2006.01) ,H04L 1/00 (2006.01) ,H04L 1/16 (2006.01) ,H04W 28/04 (2009.01) ,H04W 36/02 (2009.01) ,H04W 36/18 (2009.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
7
Radio transmission systems, i.e. using radiation field
02
Diversity systems
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1
Arrangements for detecting or preventing errors in the information received
12
by using return channel
16
in which the return channel carries supervisory signals, e.g. repetition request signals
18
Automatic repetition systems, e.g. van Duuren system
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1
Arrangements for detecting or preventing errors in the information received
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1
Arrangements for detecting or preventing errors in the information received
12
by using return channel
16
in which the return channel carries supervisory signals, e.g. repetition request signals
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
28
Network traffic or resource management
02
Traffic management, e.g. flow control or congestion control
04
Error control
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
36
Handoff or reselecting arrangements
02
Buffering or recovering information during reselection
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
36
Handoff or reselecting arrangements
16
Performing reselection for specific purposes
18
for allowing seamless reselection, e.g. soft reselection
Applicants: LÖHR, Joachim[DE/DE]; DE (UsOnly)
SEIDEL, Eiko[DE/DE]; DE (UsOnly)
PETROVIC, Dragan[YU/DE]; DE (UsOnly)
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.[JP/JP]; 1006, Oaza Kadoma Kadoma-shi Osaka 571-8501, JP (AllExceptUS)
Inventors: LÖHR, Joachim; DE
SEIDEL, Eiko; DE
PETROVIC, Dragan; DE
Agent: KUHL, Dietmar; Grünecker, Kinkeldey, Stockmair & Schwanhäusser Maximilianstrasse 58 80538 München, DE
Priority Data:
03018469.114.08.2003EP
Title (EN) BASE STATION SYNCHRONIZATION DURING SOFT HANDOVER
(FR) SYNCHRONISATION DE STATION DE BASE LORS D'UN TRANSFERT LOGICIEL
Abstract:
(EN) The present invention relates to a data transmission method and data packet retransmission method for use in a mobile communication system comprising a communication terminal and a plurality of base stations, wherein the communication terminal is in communication with the plurality of base stations during a soft handover. Further, the present invention relates to a base station executing the data transmission method and the data retransmission method. To prohibit the wrong combination of data packets in base stations participating in the active set of a particular communication terminal the invention provides a method for exchanging control information between base stations participating in a soft handover to synchronize their buffers.
(FR) L'invention concerne un procédé de transmission de données et un procédé de retransmission de paquets de données utilisés dans un système de communication comprenant un terminal de communication et plusieurs stations de base. Le terminal de communication communique avec plusieurs stations de base lors d'un transfert logiciel. En outre, l'invention concerne une station de base exécutant les procédés de transmission de données et de retransmission de données. Pour interdire la combinaison erronée de paquets de données dans des stations de base participant dans un ensemble actif d'un terminal de communication particulier, un procédé permet d'échanger des informations de contrôle entre les stations de base participant à un transfert logiciel afin de synchroniser leurs tampons.
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, KR, 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, 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 Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IT, 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: English (EN)