公开(公告)号：EP2270999A4

公开(公告)日：2015-01-07

申请号：EP09734243

申请日：2009-04-23

Applicant: PANASONIC CORP

Inventor： MATSUSHITA YOSUKE ,  FUJIWARA YUKI ,  HOMMA; HIDEKI ,  MORITA NAOKI ,  URABE YOSHIO

IPC: H04B3/54

CPC classification number: H04B3/54 ,  H04B3/544 ,  H04B2203/5445

公开(公告)号：EP2337283A4

公开(公告)日：2014-01-22

申请号：EP09820389

申请日：2009-10-02

Applicant: PANASONIC CORP

Inventor： FUJIWARA YUKI ,  MATSUSHITA YOSUKE ,  HOMMA HIDEKI ,  MORITA NAOKI

IPC: H04B3/54 ,  H04L12/28 ,  H04L12/70 ,  H04W28/02 ,  H04W76/02 ,  H04W88/02

CPC classification number: H04B3/54 ,  H04B2203/5445 ,  H04L45/02 ,  H04L45/121 ,  H04L45/22 ,  H04L45/26

公开(公告)号：EP2337270A4

公开(公告)日：2012-02-29

申请号：EP09820366

申请日：2009-09-14

Applicant: PANASONIC CORP

Inventor： MATSUSHITA YOSUKE ,  FUJIWARA YUKI ,  HOMMA HIDEKI ,  MORITA NAOKI

IPC: H04L12/56 ,  H04W40/30

CPC classification number: H04W40/30 ,  H04L45/00 ,  H04L45/025 ,  H04L45/125 ,  H04L45/22 ,  H04W40/12 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/22 ,  Y02D70/34

Abstract: Provided is a communication terminal that is capable of securing a route having the finest state while suppressing a bandwidth that is consume by a transmission of a control packet at a low level, when applied in an ad-hoc network which uses an electrical power line. The communication terminal included in the ad-hoc network acquires a plurality of route candidates at the beginning of a data transmission by conducting a broadcast transmission of a route creation packet, and acquires a route having the finest state by conducting an unicast transmission of a route estimation packet to each of the route candidates in each predetermined period.