RADIO TERMINAL AND RADIO COMMUNICATION SYSTEM

• Main Authors: SAKAMOTO KENTARO, MATSUI SHINJI, SAITO NAOTOSHI, ICHIMURA JUNICHI, NAGAYAMA REINA, YAMASHITA RYO, FUKUSHIMA KEISUKE, SAKATA MASAAKI, NISHIGUCHI KAZUHIRO, YASUI MASAHIRO, SATO TOMONORI, HOSHINO MITSUNORI, NAKAGAWA MASAFUMI, HATAKEUCHI TAKAAKI, ICHIKAWA TAKAO
• Format: Patent
• Language: English; Japanese
• Published: 02.11.2015
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; WIRELESS COMMUNICATIONS NETWORKS

PROBLEM TO BE SOLVED: To provide a radio terminal which enables all radio terminals to confirm reception of transfer information when performing broadcast communication of the transfer information within a mesh-type multi-hop network, and a radio communication system .SOLUTION: A radio terminal X is used for a mesh-type multi-hop network N including radio terminals X00-X09 and includes a battery 4, a radio part 2 and a control part 1. The radio terminal X is used for broadcast communication in which one radio terminal X00 makes the other radio terminals X01-X09 receive communication data by an operation of once transmitting the communication data. The communication data include: transfer information indicating a transfer event that should be shared by all the radio terminals X00-X09, and non-transfer terminal information indicating whether each of the radio terminals X00-X09 receives the transfer information. In the case where a present terminal receives the communication data, the non-transfer terminal information is rewritten so as to indicate that the present terminal receives the transfer information. The other radio terminal X that does not receive the transfer information, is then selected from the non-transfer terminal information and the communication data are transmitted thereto. 【課題】メッシュ型マルチホップネットワーク内で伝達情報の同報通信を行う場合に、全無線端末が伝達情報の受信を確認できる無線端末及び無線通信システムを提供すること。【解決手段】無線端末Ｘ００〜Ｘ０９を備えるメッシュ型マルチホップネットワークＮに用いられ、電池４と、無線部２と、制御部１を有する無線端末Ｘにおいて、ある無線端末Ｘ００が通信データを１回発信する動作で他の無線端末Ｘ０１〜Ｘ０９に通信データを受信させる同報通信に用いられ、通信データは、無線端末Ｘ００〜Ｘ０９の全てに共有させるべき伝達事象を示す伝達情報と、無線端末Ｘ００〜Ｘ０９の各々について伝達情報を受信したか否かを示す未転送端末情報を含んでおり、自端末が通信データを受信した場合に、自端末が伝達情報を受信したことを示すように未転送端末情報を書き換え、未転送端末情報より伝達情報を受信していない他の無線端末Ｘを選択し、通信データを送信する。【選択図】図４