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1. (WO2017022167) BASE STATION DEVICE AND METHOD THEREOF
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Pub. No.: WO/2017/022167 International Application No.: PCT/JP2016/002993
Publication Date: 09.02.2017 International Filing Date: 21.06.2016
IPC:
H04W 36/18 (2009.01) ,H04W 16/32 (2009.01) ,H04W 36/04 (2009.01) ,H04W 72/04 (2009.01) ,H04W 92/20 (2009.01)
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
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
16
Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cell structures
24
Cell structures
32
Hierarchical cell structures
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
36
Handoff or reselecting arrangements
04
Reselecting a cell layer in multi-layered cells
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
72
Local resource management, e.g. selection or allocation of wireless resources or wireless traffic scheduling
04
Wireless resource allocation
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
92
Interfaces specially adapted for wireless communication networks
16
Interfaces between hierarchically similar devices
20
between access points
Applicants: NEC CORPORATION[JP/JP]; 7-1, Shiba 5-chome, Minato-ku, Tokyo 1088001, JP
Inventors: FUTAKI, Hisashi; JP
HAYASHI, Sadafuku; JP
Agent: IEIRI, Takeshi; JP
Priority Data:
2015-15273531.07.2015JP
Title (EN) BASE STATION DEVICE AND METHOD THEREOF
(FR) DISPOSITIF DE STATION DE BASE ET PROCÉDÉ ASSOCIÉ
(JA) 基地局装置及びその方法
Abstract:
(EN) A secondary base station (2), while cooperating with the first master base station (1) to provide a radio terminal (4) with a secondary cell group (SCG) for DC, receives an SeNB addition request message (302) from a second master base station (3). In response to said SeNB addition request message (302) explicitly or implicitly indicating that the master base station in DC for the radio terminal (4) has changed from the first master base station (1) to the second master base station (3), the secondary base station (2) recognizes that the SeNB addition request message (302) is requesting modification of the previously configured SCG. By this means, it is possible, for example, to contribute to performing a change procedure of the master base station in dual connectivity (DC) by using signaling messages between base stations and an existing inter-base station interface procedure.
(FR) Une station de base secondaire (2), tout en coopérant avec la première station de base principale (1) pour fournir à un terminal radio (4) un groupe de cellules secondaires (SCG) pour DC, reçoit un message de demande d'ajout de SeNB (302) d'une deuxième station de base principale (3). En réponse audit message de demande d'ajout de SeNB (302) indiquant implicitement ou explicitement que la station de base principale en DC pour le terminal radio (4) est passé de la première station de base principale (1) à la deuxième station de base maître (3), la station de base secondaire (2) reconnaît que le message de demande d'ajout de SeNB demande une modification de la SCG configurée précédemment. Ainsi, il est possible, par exemple, de contribuer à mettre en oeuvre une procédure de passage de la station de base principale en double connectivité (DC) à l'aide de messages de signalisation entre des stations de base et une procédure d'interface entre stations de base.
(JA) セカンダリ基地局(2)は、第1のマスター基地局(1)と連携してDCのためのセカンダリセル・グループ(SCG)を無線端末(4)に提供している間に第2のマスター基地局(3)からSeNB追加要求メッセージ(302)を受信する。セカンダリ基地局(2)は、当該SeNB追加要求メッセージ(302)が無線端末(4)のためのDCのマスター基地局が第1のマスター基地局(1)から第2のマスター基地局(3)に変更されることを明示的又は暗示的に示すことに応じて、当該SeNB追加要求メッセージ(302)が既に設定されているSCGの修正を要求していると認識する。これにより、例えば、Dual Connectivity(DC)のマスター基地局の変更手順を既存の基地局間インタフェース手順及び基地局間シグナリング・メッセージを利用して行うことに寄与できる。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)