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1. WO2000018022 - BASE STATION DEVICE AND TRANSMISSION METHOD

Publication Number WO/2000/018022
Publication Date 30.03.2000
International Application No. PCT/JP1999/004964
International Filing Date 13.09.1999
IPC
H01Q 1/24 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
1Details of, or arrangements associated with, antennas
12Supports; Mounting means
22by structural association with other equipment or articles
24with receiving set
H01Q 3/26 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
3Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
26varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
H01Q 3/30 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
3Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
26varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
30varying the phase
H04B 7/06 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
06at the transmitting station
CPC
H01Q 1/246
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
1Details of, or arrangements associated with, antennas
12Supports; Mounting means
22by structural association with other equipment or articles
24with receiving set
241used in mobile communications, e.g. GSM
246specially adapted for base stations
H01Q 3/26
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
3Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
26varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
H01Q 3/2605
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
3Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
26varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
2605Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays
H01Q 3/30
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
3Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
26varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
30varying the ; relative; phase ; between the radiating elements of an array
H04B 7/0617
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
06at the transmitting station
0613using simultaneous transmission
0615of weighted versions of same signal
0617for beam forming
Y02D 30/70
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
30Reducing energy consumption in communication networks
70in wireless communication networks
Applicants
  • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. [JP]/[JP] (AllExceptUS)
  • IDE, Minako [JP]/[JP] (UsOnly)
  • HIRAMATSU, Katsuhiko [JP]/[JP] (UsOnly)
Inventors
  • IDE, Minako
  • HIRAMATSU, Katsuhiko
Agents
  • WASHIDA, Kimihito
Priority Data
10/26434918.09.1998JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) BASE STATION DEVICE AND TRANSMISSION METHOD
(FR) DISPOSITIF STATION DE BASE ET PROCEDE D'EMISSION
Abstract
(EN)
Signals to be subject to variable directional transmission are multiplied by weighting factors for individual antennas (101 to 103) at a multiplier (152) for outputting to synthesis circuits (155 to 157) respectively, while signals not subject to variable directional transmission are output to any one of the synthesis circuits (155 to 157) respectively. A signal input to a synthesis circuit (155) is synthesized, radio-modulated at a radio unit (104) and transmitted from an antenna (101). Similarly, a signal input to a synthesis circuit (156) is synthesized, radio-modulated at a radio unit (105) and transmitted from an antenna (102), and a signal input to a synthesis circuit (157) is synthesized, radio-modulated at a radio unit (106) and transmitted from an antenna (103). Thereby, it is possible to dispersedly transmit signals not subject to variable directional transmission from individual antennas to reduce a transmission power and the size of a device when variable directional transmission is performed on part of terminal devices only.
(FR)
Les signaux destinés à être émis de manière directionnelle variable sont multipliés par plusieurs facteurs de pondération pour différentes antennes (101 à 103) par un multiplicateur (152), de sorte que ces signaux peuvent être émis respectivement vers divers circuits de synthèse (155 à 157). Les signaux n'ayant pas été émis de manière directionnelle variable sont émis respectivement vers n'importe lequel de ces circuits de synthèse (155 à 157). Une entrée du signal dans un circuit de synthèse (155) est synthétisée, puis soumise à une modulation radioélectrique par une unité radioélectrique (104), avant d'être émise par une antenne (101). De même, une autre entrée du signal dans un circuit de synthèse (156) est synthétisée, puis soumise à une modulation radioélectrique par une unité radioélectrique (105), avant d'être émise par une antenne (102), et une troisième entrée du signal dans un circuit de synthèse (157) est synthétisée, soumise à une modulation radioélectrique par une unité radioélectrique (106), avant d'être émise par une antenne (103). Il est ainsi possible d'émettre de manière diffuse, depuis différentes antennes, des signaux non émis de manière directionnelle variable, afin de réduire la puissance d'émission et de limiter la taille d'un dispositif, lorsque cette émission directionnelle variable depuis différentes antennes s'effectue uniquement au moyen d'un équipement terminal.
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