Wireless communication system and communication control method

Abstract

The present invention provides a wireless communication system characterized in that a mobile station comprises a PCH receiving section, a base station comprises incoming call information receiving seThe present invention provides a wireless communication system characterized in that a mobile station comprises a PCH receiving section, a base station comprises incoming call information receiving section; a PCH generation section generating PCH by using modulation mode based received incoming call information; and a PCH sending section, a center server comprises: a server storage section storingction; a PCH generation section generating PCH by using modulation mode based received incoming call information; and a PCH sending section, a center server comprises: a server storage section storinglisted recognition information of a recognition mobile station and function information of the mobile station; a server extract section extracting function information from the server storage section listed recognition information of a recognition mobile station and function information of the mobile station; a server extract section extracting function information from the server storage section based on recognition information of the base station when call request to the mobile station exists; and a server sending section sending incoming call information containing the recognition informatbased on recognition information of the base station when call request to the mobile station exists; and a server sending section sending incoming call information containing the recognition information and extracted function information to the base station; the function information representing modulation mode corresponding to the mobile station. Therefore, modulation mode of mobile station of aion and extracted function information to the base station; the function information representing modulation mode corresponding to the mobile station. Therefore, modulation mode of mobile station of acquiring call target position, based on which, PCH receiving errors caused by different modulation modes are prevented.cquiring call target position, based on which, PCH receiving errors caused by different modulation modes are prevented.

Description

technical field

[0001] The present invention relates to a wireless communication system and a communication control method. Background technique

[0002] In recent years, mobile stations such as PHS (Personal Handy phone System) and mobile phones have been popularized, and improvements in communication quality and communication speed have been demanded in addition to miniaturization and weight reduction of mobile stations. For example, while maintaining communication quality, an adaptive modulation method that adaptively changes the modulation method according to changes in the communication environment to increase the communication speed is being used. Modulation methods with different bit rates are used as this modulation method, and BPSK (Binary Phase Shift Keying), QPSK (Quadrature PSK, quadrature phase shift keying) and QPSK (Quadrature PSK) are used sequentially from the modulation method with a low bit rate. phase keying), 16QAM (Quadrature Amplitude Modulation, quad...

Images