Method and System for Performing Periodic Ranging By Dynamically Adjusting Ranging Interval According to Communication Environment in Portable Internet Network

摘要

The present invention relates to a method and system for performing periodic ranging by dynamically setting a ranging interval according to a propagation environment in a portable Internet network.;The present invention provides a method comprising: (a) receiving a sleep mode request message for requesting a sleep mode from a personal subscriber station, transmitting a response message including a frame number at which a next ranging is to be started to the personal subscriber station; (b) upon receiving a ranging request message from the personal subscriber station, receiving a ranging signal including location information or channel information of the personal subscriber station to perform a ranging operation; (c) determining whether the ranging operation is successful; (d) determining whether data to be transmitted to the personal subscriber station is buffered when the ranging operation is successful as a result of the determination of step (c); (e) changing the personal subscriber station to an awake mode when the data to be transmitted to the personal subscriber station is buffered as a result of the step (d); And (f) when the determination result of step (d) does not buffer data to be transmitted to the personal subscriber station, transmitting a response message calculated by increasing the ranging interval to the personal subscriber station. The present invention relates to a method for performing periodic ranging by dynamically setting a ranging interval according to a propagation environment in a portable internet network, and a system for performing the same.;Mobile Internet, Personal Subscriber, RAS, PSS