EP 1864401 A1 20071212 - A METHOD FOR ALLOCATING DOWNLINK DATA STREAMS IN A DISTRIBUTED ANTENNA SYSTEM
Title (en)
A METHOD FOR ALLOCATING DOWNLINK DATA STREAMS IN A DISTRIBUTED ANTENNA SYSTEM
Title (de)
VERFAHREN ZUM ZUTEILEN VON ABWÄRTSSTRECKENDATENSTRÖMEN IN EINEM VERTEILTEN ANTENNENSYSTEM
Title (fr)
PROCEDE POUR ALLOUER DES FLUX DE DONNEES DESCENDANTS DANS UN SYSTEME D'ANTENNES DISTRIBUE
Publication
Application
Priority
- EP 2006061211 W 20060331
- CN 200510059760 A 20050331
Abstract (en)
[origin: WO2006103283A1] A method for allocating downlink data streams in a distributed antenna system, wherein in the downlink radio signal transmission from remote units to a mobile terminal, the central unit of the service area in which the mobile terminal is located allocates data streams of the radio signal among the remote units within its service area, according to the following steps: firstly, measuring the position in the service area in which the mobile terminal is located; secondly, measuring the correlation of the downlink radio signals transmitted to the mobile terminal from individual antenna units of all the remote units within the service area; lastly, the central unit determining the manner in which the data streams are allocated among the remote units based on the position of the mobile terminal and the measured value of the correlation of the downlink radio signals. The method of the present invention can allocate data streams of a radio signal among remote units in a service area according to the variations in the position of the mobile terminal and radio signal transmission environment, and compared with traditional applications of MIMO radio transmission technology, the method further improves the transmission quality of radio signals and optimizes the performance of distributed antenna systems.
IPC 8 full level
CPC (source: EP)
H04B 7/0613 (2013.01); H04L 1/0003 (2013.01); H04L 1/0009 (2013.01); H04L 1/0618 (2013.01); H04L 5/0023 (2013.01); H04L 5/0044 (2013.01); H04L 5/0048 (2013.01); H04W 88/085 (2013.01)
Citation (search report)
See references of WO 2006103283A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2006103283 A1 20061005; CN 1841960 A 20061004; CN 1841960 B 20100623; EP 1864401 A1 20071212
DOCDB simple family (application)
EP 2006061211 W 20060331; CN 200510059760 A 20050331; EP 06725459 A 20060331