Access method for communication terminal
A communication terminal acquires positional information indicating the position at which the communication terminal exists, from a GPS satellite, determines a range of correspondence information to be acquired, from among the correspondence information that makes the positional information indicating position identified by latitude and longitude correspondent to the frequency to be used at that position and that is stored in a server, based on the acquired positional information, acquires the correspondence information included in the determined range, from the sever, and, identifies the frequency to be used between the communication terminal and the radio base station to be connected to the communication terminal, based on the acquired positional information and the correspondence information included in the range.
1. A communication terminal having a radio communicating function, the communication terminal comprising:
a Global Positioning System (GPS) module that acquires positional information from a GPS satellite, indicating the position at which the communication terminal is present;
a controller which determines a range of correspondence information to be acquired, the range of correspondence information comprising a plurality of sections that are divided based on binarized values of latitude and longitude components of the positional information and a previously determined threshold, and each section corresponding to a frequency to be used at that respective section; and,
a receiver that acquires the correspondence information included in the range from a server,
wherein the controller further identifies, based on the positional information acquired by the GPS module and the correspondence information included in the range acquired by the receiver, the frequency to be used between the communication terminal and a radio base station to be connected to the communication terminal.
2. The communication terminal according to claim 1 , further comprising a storage that stores the correspondence information acquired by the receiver,
wherein the controller, based on the positional information acquired by the GPS module and the correspondence information stored in the storage, identifies the frequency to be used between the communication terminal and the radio base station.
3. The communication terminal according to claim 1 , wherein the terminal is connected to a World Interoperability for Microwave Access (WiMAX) network through the radio base station.
4. A connecting method for connecting a communication terminal to a network through a radio base station, the method comprising the steps of:
acquiring positional information from a Global Positional System (GPS) satellite, indicating the position at which the communication terminal is present;
determining a range of correspondence information to be acquired, the range of correspondence information comprising a plurality of sections that are divided based on binarized values of latitude and longitude components of the positional information and a previously determined threshold, and each section corresponding to a frequency to be used at that respective section;
acquiring the correspondence information included in the range from a server; and,
identifying the frequency to be used between the communication terminal and the radio base station to be connected to the communication terminal, based on the acquired positional information and the correspondence information included in the range.
5. The connecting method according to claim 4 , further comprising the steps of:
storing the correspondence information included in the range in the communication terminal; and,
identifying the frequency to be used between the communication terminal and the radio base station, based on the acquired positional information and the stored correspondence information.
6. A non-transitory computer readable storage medium storing a program that causes a communication terminal having a radio communication function to execute:
a procedure of acquiring positional information from a Global Positioning System (GPS) satellite, indicating the position at which the communication terminal is present;
a procedure of determining a range of correspondence information to be acquired, the range of correspondence information comprising a plurality of sections that are divided based on binarized values of latitude and longitude components of the positional information and a previously determined threshold, and each section corresponding to a frequency to be used at that respective section;
a procedure of acquiring the correspondence information included in the range from a server; and, a procedure of identifying the frequency to be used between the communication terminal and the radio base station to be connected to the communication terminal, based on the acquired positional information and the correspondence information included in the range.
7. The non-transitory computer readable storage medium according to claim 6 , storing the program that causes the communication terminal to execute:
a procedure of storing the correspondence information included in the range in the communication terminal; and,
a procedure of identifying the frequency to be used between the communication terminal and the radio base station, based on the acquired positional information and the stored correspondence information.