METHOD OF MOBILE COMMUNICATION SYSTEM WITH SMART ANTENNA

摘要

The present invention is a method that not only can take full advantage of radio beam shaping of smart antenna but also can transmit downlink package data high efficiency in mobile communication system with smart antenna. When downlink data packages are transmitted to each user terminal, whatever state the user terminal is in, it is called over through paging channel to learn its initial location so as to guarantee that the smart system can use initial shaped beam to transmit data to the terminal; after completing transmission of one package, the user terminal return an acknowledgement message when reception is correct or return a message of requiring retransmission when there is any error code, to guarantee that system can know location of the user at any moment and track the mobile user by updated shaped beam; according to quality of the data packages received by user terminal, the length of downlink data packages is self-adaptively adjusted to increase the speed at which beam of the smart antenna tracks the user, and improve transmission efficiency; and the lengths of dowlink data packages are adjusted effectively by determining movement speed of the user.