Patent ID: 7881655
Filing Date: 2011-02-01
Classification: G08G,H04H

Abstract:
1. A mobile communication system having an information center and a mobile body for acquiring information via at least one of broadcasting and communication services from said information center, wherein said mobile body comprises: a broadcast receiving unit for receiving information broadcast by said information center; an information storing unit for storing received information; a communication state determining unit for determining an unreceivable state of said broadcast receiving unit, generating a determined result including an unreceivable period having an initial time and an ending time; and a mobile communication unit configured to communicatively connect with said information center for transmitting information, including said determined result, to and receiving information from said information center; and wherein said information center comprises: a broadcast transmitting unit for broadcasting information to said mobile body; an information center communication unit configured to communicatively connect with said mobile body, for transmitting information to and receiving information, including said determined result, from said mobile body; and a retransmission information generating unit for determining a set of updating information that were broadcast when said mobile body was in said unreceivable state during said unreceivable period, based on a broadcast timestamp of a particular updating information falling within said initial time and ending time of said unreceivable period, and generating retransmission information to be retransmitted to said mobile body.