Patent ID: 7809328
Filing Date: 2010-10-05
Classification: H04B,Y02D

Abstract:
1. Repeater apparatus for relaying communication signals between a base apparatus and a monitor terminal via a wireless LAN system operable in a direct communication mode wherein the base apparatus communicates directly with the monitor terminal, and in an indirect communication mode wherein the base apparatus communicates with the monitor terminal through the repeater apparatus, said repeater apparatus comprising: a transceiver through which said base apparatus communicates with said monitor terminal when said LAN system operates in said indirect communication mode; an indirect mode request detector for detecting a mode change request from said base apparatus transmitted in response to a mode change request from said monitor terminal when a reception quality of data received from said base apparatus by said monitor terminal is lower than a threshold value while said LAN system is operating in said direct communication mode; a direct mode request detector for detecting a mode change request from said monitor terminal transmitted when said monitor terminal receives from said base apparatus a beacon, different from said communication signals, that is at least equal to said threshold value when said LAN system is operating in said indirect communication mode; and control means responsive to said indirect mode request detector to set said repeater apparatus to an indirect mode whereby said communication channel relays communication signals between said base apparatus and said monitor terminal, said control means being responsive to said direct mode request detector to set said repeater apparatus to a non-indirect mode whereby said communication channel does not relay communication signals between said base apparatus and said monitor terminal.