Patent ID: 7688778
Filing Date: 2010-03-30
Classification: H04W,Y02D

Abstract:
1. A wireless communication system comprising: a plurality of wireless terminals; one or more wireless base stations, and one or more servers, wherein: said wireless communication system is connected to an external communication apparatus through a wide area network, a wireless terminal of said plurality of wireless terminals, includes: a wireless base station of said one or more wireless base stations, includes: a server of said one or more servers, includes: said wireless base station repeats the communication between said wireless terminal and said server; said wireless terminal transmits said global ID to said server in an initial communication; said server allocates one piece of said local ID with respect to said global ID received from said wireless terminal, and then, transmits an allocated said local ID to said wireless terminal; said wireless terminal stores thereinto said local ID received from said server; and in a subsequent communication, said server uses said local ID in communication with said wireless base station so as to identify said wireless terminal, converts said local ID to said global ID and uses said converted global ID in communication with said external communication apparatus so as to identify said wireless terminal, said server being arranged: (1) to have a unit for commencing a communication sequence which reallocates a useable local ID to said wireless terminal at an arbitrary time instant during operation, (2) to calculate cost required for performing communication processing at each of said plurality of wireless terminals in response to the communication sequence commenced, and (3) to allocate another local ID to each of said plurality of wireless terminals in accordance with the cost having been calculated; and said wireless terminal is operated in such a manner that said local ID is allocated thereto from said server in an initial communication; after said wireless terminal is operated for an arbitrary time period by using said local ID, said another local ID is reallocated thereto from said server since said communication sequence is commenced by said wireless terminal or said server; and said wireless terminal is subsequently operated by using said another local ID.