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1. (WO2015043687) CHANGES OF CLUSTER HEAD
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2015/043687 International Application No.: PCT/EP2013/072726
Publication Date: 02.04.2015 International Filing Date: 30.10.2013
IPC:
H04W 48/20 (2009.01) ,H04W 76/04 (2009.01) ,H04W 84/18 (2009.01) ,H04W 84/20 (2009.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
48
Access restriction; Network selection; Access point selection
20
Selecting an access point
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
76
Connection management, e.g. connection set-up, manipulation or release
04
Connection manipulation
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
84
Network topologies
18
Self-organising networks, e.g. ad hoc networks or sensor networks
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
84
Network topologies
18
Self-organising networks, e.g. ad hoc networks or sensor networks
20
Master-slave arrangements
Applicants:
NOKIA SOLUTIONS AND NETWORKS OY [FI/FI]; Karaportti 3 FI-02610 Espoo, FI
Inventors:
VAN PHAN, Vinh; FI
YU, Ling; FI
HORNEMAN, Kari Veikko; FI
Priority Data:
61/883,52827.09.2013US
Title (EN) CHANGES OF CLUSTER HEAD
(FR) CHANGEMENTS DE TÊTE DE GRAPPE
Abstract:
(EN) It is provided a method, comprising: monitoring if a first cluster head of a first cluster of first communication devices has disappeared, wherein an apparatus performing the method has access to the first cluster enabling a device-to-device communication of the apparatus with at least one of the first communication devices; and, if it is monitored that the first cluster head has disappeared: detecting a second cluster head of a second cluster of second communication devices, wherein the second cluster head is different from the first cluster head, and the second cluster enables the device-to-device communication between at least two of the second communication devices; and requesting an access to the second cluster for the device-to-device communication.
(FR) L'invention concerne un procédé, consistant : à surveiller si une première tête de grappe d'une première grappe de premiers dispositifs de communication a ou non disparu, un appareil réalisant le procédé ayant accès à la première grappe permettant une communication de dispositif à dispositif de l'appareil avec au moins l'un des premiers dispositifs de communication ; et s'il est surveillé que la première tête de grappe a disparu, à détecter une seconde tête de grappe d'une seconde grappe de seconds dispositifs de communication, la seconde tête de grappe étant différente de la première tête de grappe, et la seconde grappe permettant la communication de dispositif à dispositif entre au moins deux des seconds dispositifs de communication ; et à demander un accès à la seconde grappe pour la communication de dispositif à dispositif.
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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, LT, 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, 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: English (EN)
Filing Language: English (EN)