Patent ID: 8009019
Filing Date: 2011-08-30
Classification: G06K

Abstract:
1. A radio communication system comprising: a first radio terminal assigned a first absolute ID; and a second radio terminal assigned a second absolute ID, said first and second radio terminals having capability of performing radio communication with each other using said first and second absolute IDs in conformity with a predetermined radio communication standard, wherein said first radio terminal has a memory device for storing a combination of said first absolute ID and a first local ID for distinction of said first radio terminal within a local area network constituted by said first and second radio terminals, said second radio terminal has a memory device for storing a combination of said second absolute ID and a second local ID for distinction of said second radio terminal within said local area network, said first and second radio terminals have capability of transmitting a search signal for searching a target radio terminal, said first radio terminal is configured to transmit, upon receiving said search signal, a response signal containing said combination of said first absolute ID and said first local ID, said second radio terminal is configured to transmit, upon receiving said search signal, a response signal containing said combination of said second absolute ID and said second local ID, said first radio terminal is configured to validate, upon receiving said response signal from said second radio terminal, said second local ID by comparing said second local ID with a local ID prestored in said memory device of said first radio terminal, and transmit a communication establishment request signal for requesting communication with said second radio terminal if said second local ID is determined to be valid, said second radio terminal is configured to validate, upon receiving said response signal from said first radio terminal, said first local ID by comparing said first local ID with a local ID prestored in said memory device of said second radio terminal, and transmit a communication establishment request signal for requesting communication with said first radio terminal if said first local ID is determined to be valid, and said first radio terminal is configured to await said search signal without transmitting said search signal while said first radio terminal is set in an receiving-only mode.