Method and apparatus for controlling a reverse traffic rate in a mobile communication system

Abstract

A method and apparatus for controlling an uplink data rate in a mobile station of a mobile communication system. The apparatus includes a receiver for receiving control information based on uplink data transmitted in a first transmission interval, a controller for determining an adjusted data rate for uplink data to be transmitted in a second transmission interval, the adjusted data rate being determined based on the received control information and a data rate of the uplink data in the first transmission interval, and a transmitter for transmitting the uplink data in the second transmission interval according to the adjusted data rate. The first transmission interval and the second transmission interval are separated by at least one transmission interval.

Description

PRIORITY[0001]This application is a Continuation Application of U.S. application Ser. No. 10 / 794,992, which was filed on Mar. 5, 2004, and claims priority under 35 U.S.C. § 119 to an application filed in the Korean Intellectual Property Office on Mar. 5, 2003 and assigned Serial No. 2003-13838, and an application filed in the Korean Intellectual Property Office on Aug. 30, 2003 and assigned Serial No. 2003-60631, the contents of all of which are incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates generally to a mobile communication system, and in particular, to an interlaced rate control (IRC) method and apparatus for efficiently controlling reverse traffic.[0004]2. Description of the Related Art[0005]Generally, in a Code Division Multiple Access (CDMA) mobile communication system, multimedia service is supported using the same frequency band. Mobile stations simultaneously transmit data to a base station, an...

AI Technical Summary

Benefits of technology

The present invention provides a method and apparatus for controlling a reverse rate in a mobile communication system while considering the delay between a rate control bit and the time it takes for the bit to be applied by a mobile station. This allows for efficient reverse rate control and improved system throughput. The method includes transmitting data in a first transmission interval and receiving control information based on the data in the first interval. The control information is used to determine an adjusted data rate for the second transmission interval, which is then transmitted. The first and second intervals are separated by at least one transmission interval. The technical effects of this invention include improved data transmission efficiency and reduced delay in the mobile communication system.

Problems solved by technology

However, in such a rate control method, due to a delay between a time where RCB is generated in a base station and a time where the RCB is actually applied in a mobile station, a base station cannot efficiently perform rate control on its mobile stations.

When several mobile stations simultaneously transmit reverse data, data transmitted by other mobile stations acts as interference to a signal of a particular mobile station.

In this case, due to a delay between a time when the RCB is generated in a base station and a time when the RCB is actually applied in a mobile station, reverse rate control cannot be efficiently performed, leading to deterioration in data throughput of the entire system.

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