公开(公告)号：US20190014172A1

公开(公告)日：2019-01-10

申请号：US15745302

申请日：2015-09-03

Applicant: NEC CORPORATION

Inventor： Prakash CHAKI ,  Masato YASUDA ,  Kazuaki NAKAJIMA

IPC: H04L29/08

CPC classification number: H04L67/1059 ,  H04L67/1046 ,  H04L67/1051 ,  H04L67/1068 ,  H04L67/16 ,  H04W8/186 ,  H04W84/20

Abstract: A mechanism by which the number of groups can be reduced in a multi-group P2P network is disclosed. A method for group formation in wireless peer-to-peer (P2P) networks, includes: exchanging group-related information between group owners of neighboring P2P groups; deciding on whether a combined group of the neighboring P2P groups meets a predetermined condition of either of the neighboring P2P groups, based on the group-related information of the neighboring P2P groups; and merging the neighboring P2P groups to form at least one single group when the combined group meets the predetermined condition.

公开(公告)号：US20180343547A1

公开(公告)日：2018-11-29

申请号：US15528027

申请日：2014-11-26

Applicant: NEC Corporation

Inventor： Prakash CHAKI ,  Masato YASUDA ,  Kazuaki NAKAJIMA

IPC: H04W4/08 ,  H04L29/08 ,  H04W76/14

CPC classification number: H04W4/08 ,  H04L67/1051 ,  H04L67/1068 ,  H04W8/005 ,  H04W12/003 ,  H04W76/14 ,  H04W84/20

Abstract: A connection method in a wireless peer-to-peer group of nodes, wherein one of the nodes acts as a leader and others act as clients of the group, includes the steps of: sending credential information required for creating a virtual persistent group configuration from the leader to each of the clients; creating a virtual persistent group configuration at each of the clients which has received the credential information from the leader; and when leadership of the leader disappears, establishing a first-time connection between a first client and a second client based on persistent mechanism by invitation using the virtual persistent group configuration.

公开(公告)号：US20180098208A1

公开(公告)日：2018-04-05

申请号：US15573659

申请日：2015-05-20

Applicant: NEC Corporation

Inventor： Prakash CHAKI ,  Masato YASUDA ,  Kazuaki NAKAJIMA

IPC: H04W8/00 ,  H04W72/12 ,  H04W28/02

CPC classification number: H04W8/005 ,  H04W28/021 ,  H04W72/121 ,  H04W76/11 ,  H04W76/14 ,  H04W84/18

Abstract: A method includes: performing a scan to discover at least one Peer to Peer (P2P) group; sharing a result of the scan within a first P2P group; preparing a switching schedule of the first P2P group based on the shared result; wherein the switching schedule enables a switching device to disconnect from a first owner device in the first P2P group and to connect with a second owner device in a second P2P group; sharing an information with the second P2P group by using the switching device; and performing communication among the first P2P group and the second P2P group on the basis of the information.

公开(公告)号：US20170359696A1

公开(公告)日：2017-12-14

申请号：US15538255

申请日：2015-11-09

Applicant: NEC Corporation

Inventor： Masato YASUDA ,  Kazuaki NAKAJIMA ,  Hidenori TSUKAHARA

IPC: H04W4/02 ,  H04W4/08 ,  H04W84/18 ,  H04W92/18

CPC classification number: H04W4/029 ,  H04L67/104 ,  H04W4/023 ,  H04W4/027 ,  H04W4/08 ,  H04W4/46 ,  H04W76/10 ,  H04W76/30 ,  H04W84/18 ,  H04W92/18

Abstract: A wireless communication network includes a plurality of nodes each capable of performing wireless communication by a first communication method that can form P2P group and wireless communication by a second communication method. A first owner node that operates as an access point to a first P2P group uses the wireless communication by the second communication method to discover a second P2P group present in a second communicable range that is a region outside a first communicable range defined by the first communication method, predicts the time that elapses before the second P2P group moves into the first communicable range, and performs group reorganization before the predicted time elapses.

公开(公告)号：US20170339566A1

公开(公告)日：2017-11-23

申请号：US15537517

申请日：2016-01-06

Applicant: NEC CORPORATION

Inventor： Masato YASUDA ,  Kazuaki NAKAJIMA

IPC: H04W12/08 ,  H04W76/02 ,  H04W12/06 ,  H04L29/08 ,  H04W84/12 ,  H04L29/06

CPC classification number: H04W12/08 ,  H04L67/104 ,  H04L67/141 ,  H04L69/16 ,  H04L69/24 ,  H04W4/46 ,  H04W12/06 ,  H04W76/14 ,  H04W84/12 ,  H04W92/18

Abstract: The present invention provides a communication method in a wireless communication network in which a first wireless terminal establishes a peer-to-peer wireless connection with a second wireless terminal. The first terminal determines whether or not the second wireless terminal is a universal terminal on the basis of information received from the second wireless terminal. The first wireless terminal controls access to a resource in the first wireless terminal by the second wireless terminal after a connection is established in accordance with the result of the determination.