초록 ▼

A packet data processing device for a mobile communication system. A base station includes a channel status information receiver for receiving channel status information for a forward channel from a mobile station; a supplemental channel transmission controller for determining a bit rate of the mobi

A packet data processing device for a mobile communication system. A base station includes a channel status information receiver for receiving channel status information for a forward channel from a mobile station; a supplemental channel transmission controller for determining a bit rate of the mobile station according to the channel status information, a supplemental channel transmitter for transmitting data to the mobile station at the bit rate determined by the supplemental channel transmission controller; and a rate indicator transmitter for generating a rate indicator having information about the determined bit rate and transmitting the generated rate indicator to the mobile station. The mobile station includes a channel status measurer for detecting power of a signal received over a pilot channel to measure channel status; a channel status information transmitter for generating channel status information according to the measured channel status and transmitting the channel status information to a base station; and a supplemental channel receiver for detecting a bit rate of data transmitted at a variable rate from the base station and receiving data at the detected bit rate.

대표청구항 ▼

A packet data processing device for a mobile communication system. A base station includes a channel status information receiver for receiving channel status information for a forward channel from a mobile station; a supplemental channel transmission controller for determining a bit rate of the mobi

A packet data processing device for a mobile communication system. A base station includes a channel status information receiver for receiving channel status information for a forward channel from a mobile station; a supplemental channel transmission controller for determining a bit rate of the mobile station according to the channel status information, a supplemental channel transmitter for transmitting data to the mobile station at the bit rate determined by the supplemental channel transmission controller; and a rate indicator transmitter for generating a rate indicator having information about the determined bit rate and transmitting the generated rate indicator to the mobile station. The mobile station includes a channel status measurer for detecting power of a signal received over a pilot channel to measure channel status; a channel status information transmitter for generating channel status information according to the measured channel status and transmitting the channel status information to a base station; and a supplemental channel receiver for detecting a bit rate of data transmitted at a variable rate from the base station and receiving data at the detected bit rate. t message and the transmission power increase request signal or the transmission power decrease request signal are transmitted to said plurality of mobile stations, andwherein said plurality of mobile stations gradually decrease the transmission powers of the transmission power increase request signals corresponding to the reception powers of the transmission power increase request signal or the transmission power decrease request signal, and the multicast message received from said base station.2. The multicast message communicating system as set forth in claim 1,wherein each of said plurality of mobile stations has:demodulating means for receiving the multicast message and demodulating it;reception power detecting means for detecting the reception power of the multicast message received by the demodulating means;transmission power increase/decrease request signal detecting means for detecting the transmission power increase request signal or the transmission power decrease request signal received from said base station; andtransmission power controlling means for deciding the transmission power of the transmission power increase request signal to be transmitted to said base station,wherein when the demodulating means receives the multicast message with sufficient quality from said base station, the transmission power controlling means gradually decreases the transmission power of the transmission power increase request signal.3. The multicast message communicating system as set forth in claim 1,wherein the power controlling portion of said base station increases the transmission power of the multicast message in condition (1) of which the reception power of the transmission power increase request signal received from each of said plurality of mobile stations exceeds a second threshold value,wherein the power controlling portion of said base station decreases the transmission power of the multicast message in condition (2) of which the reception power of the transmission power increase request signal received from each of said plurality of mobile stations is equal to or smaller than the second threshold value for a predetermined time period, andwherein the power controlling portion of said base station does not vary the transmission power of the multicast message in condition (3) of which the conditions (1) and (2) are not satisfied.4. The multicast message communicating system as set forth in claim 1,wherein when the reception power of the multicast message received from each of said plurality of mobile stations is equal to or larger than a fourth threshold value, the transmission power of the transmission power increase request signal transmitted to said base station is gradually decreased.5. The multicast message communicating system as set forth in claim 1,wherein said base station controls the transmission power of the multicast message corresponding to the reception power of the transmission power increase request signal received from each of said plurality of mobile stations.6. The multicast message communicating system as set forth in claim 2,wherein the power controlling portion of said base station increases the transmission power of the multicast message in condition (1) of which the reception power of the transmission power increase request signal received from each of said plurality of mobile stations exceeds a second threshold value,wherein the power controlling portion of said base station decreases the transmission power of the multicast message in condition (2) of which the reception power of the transmission power increase request signal received from each of said plurality of mobile stations is equal to or smaller than the second threshold value for a predetermined time period, andwherein the power controlling portion of said base station does not vary the t