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1. WO2013015309 - WIRELESS BASE STATION AND COMMUNICATION CONTROL METHOD

Publication Number WO/2013/015309
Publication Date 31.01.2013
International Application No. PCT/JP2012/068814
International Filing Date 25.07.2012
IPC
H04W 16/28 2009.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
16Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cell structures
24Cell structures
28using beam steering
H04J 99/00 2009.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
99Subject matter not provided for in other groups of this subclass
H04W 72/04 2009.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
72Local resource management, e.g. selection or allocation of wireless resources or wireless traffic scheduling
04Wireless resource allocation
CPC
H04B 7/2643
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
24for communication between two or more posts
26at least one of which is mobile
2643using time-division multiple access [TDMA]
H04L 5/00
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
H04L 5/0007
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
0001Arrangements for dividing the transmission path
0003Two-dimensional division
0005Time-frequency
0007the frequencies being orthogonal, e.g. OFDM(A), DMT
H04L 5/0044
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
003Arrangements for allocating sub-channels of the transmission path
0044allocation of payload
H04L 5/0051
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
003Arrangements for allocating sub-channels of the transmission path
0048Allocation of pilot signals, i.e. of signals known to the receiver
0051of dedicated pilots, i.e. pilots destined for a single user or terminal
Applicants
  • 京セラ株式会社 KYOCERA CORPORATION [JP]/[JP] (AllExceptUS)
  • 佐原 徹 SAHARA, Tooru [JP]/[JP] (UsOnly)
Inventors
  • 佐原 徹 SAHARA, Tooru
Agents
  • キュリーズ特許業務法人 Curiuse Patent Professional Corporation
Priority Data
2011-16373526.07.2011JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) WIRELESS BASE STATION AND COMMUNICATION CONTROL METHOD
(FR) STATION DE BASE SANS FIL ET PROCÉDÉ DE COMMANDE DE COMMUNICATION
(JA) 無線基地局及び通信制御方法
Abstract
(EN)
This evolved Node B (eNB) which uses adaptive array control to perform wireless communication in a Time-Division Long-Term Evolution (TD-LTE) system transmits sounding reference signals (SRSs) used for adaptive array control from a plurality of user equipments (UEs) (200), and allocates an SRS to each target downstream resource block group (RBG) among a plurality of downstream RBGs. The eNB allocates the target downstream RBG to a UE that transmitted a specific SRS, which is the SRS with the highest degree of coincidence between the target downstream RBG and a frequency band, among a plurality of SRSs that were recently been received before the target downstream RGB.
(FR)
L'invention porte sur un nœud B évolué (eNB), utilisant une commande de réseau adaptatif pour effectuer une communication sans fil dans un système d'évolution à long terme à répartition temporelle (TD-LTE), qui reçoit des signaux de référence de sondage (SRS) utilisés pour une commande de réseau adaptatif en provenance d'une pluralité d'équipements utilisateur (UE) (200), et attribue un SRS à chaque groupe de blocs de ressource (RBG) de liaison descendante cible parmi une pluralité de RBG de liaison descendante. L'eNB attribue le RBG de liaison descendante cible à un UE qui a transmis un SRS spécifique, qui est le SRS ayant le plus haut degré de coïncidence entre le RBG de liaison descendante cible et une bande de fréquence, parmi une pluralité de SRS qui ont été récemment reçus avant le RBG de liaison descendante cible.
(JA)
 TD-LTEシステムにおいて、アダプティブアレイ制御を使用して無線通信を行うeNBは、アダプティブアレイ制御に利用されるSRSを複数のUE200から受信し、複数の下りRBGのうちの対象下りRBG毎に割り当てを行う。eNBは、対象下りRBGよりも前において最近受信した複数のSRSのうち、当該対象下りRBGと周波数帯の一致度が最も高いSRSである特定SRSを送信したUEに対して、当該対象下りRBGを割り当てる。
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