Apparatus and method for gating transmission of a data rate control channel in an HDR mobile communication system

An access terminal apparatus in a high data rate mobile communication system, comprising:

• a controller for determining a repetition frequency of a Data Rate Control (DRC) channel and transmission power of the DRC channel by using a signaling message from an access network;
• a DRC channel transmitter for repeating a DRC channel signal indicating one of forward data rates as many times as the repetition frequency, under the control of the controller;
• and
• a gain controller, under the control of the controller, for adjusting transmission power of the DRC channel signal from the DRC channel transmitter below transmission power of a pilot channel,
• wherein the signaling message includes a DRC repetition frequency and transmission power information.

A data transmission method for an access network in a high data rate mobile communication system, comprising the steps of:

• measuring reception power of a reverse Data Rate Control (DRCI channel;
• determining a slotting rate of the reverse DRC channel by comparing the measured reception power of the reverse DRC channel with a plurality of predetermined threshold values;
• and
• transmitting a signaling message including information indicating the determined slotting rate to an access terminal, information on a slot where transmitting the reverse DRC channel is started, and information on whether an offset is applied to a pilot channel.

A data transmission method for an access network in a high data rate mobile communication system, comprising the steps of:

• measuring reception power of a reverse Data Rate Control (DRC) channel;
• determining a repetition frequency DRC Length of said reverse DRC channel by comparing the measured reception power of the reverse DRC channel with a plurality of predetermined threshold values;
• adjusting transmission power of the reverse DRC channel below transmission power of a reverse pilot channel according to the determined repetition frequency;
• and
• transmitting a signaling message including information indicating the repetition frequency and information indicating the transmission power of the reverse DRC channel.

A data transmission method for an access terminal in a high data rate mobile communication system, comprising the steps of:

• acquiring a repetition frequency of a DRC channel by using a signaling message from an access network;
• adjusting transmission power of the DRC channel signal below transmission power of a pilot channel according to the acquired repetition frequency;
• and
• repeatedly transmitting the DRC channel as many times as the repetition frequency at the determined transmission power,
• wherein the signaling message includes the repetition frequency.

A communication method in a high data rate mobile communication system, comprising the steps of:

• during call setup, transmitting a signaling message including a repetition frequency of a reverse DRC channel and information indicating whether an offset is applied to a pilot channel, from an access network to an access terminal;
• repeatedly transmitting the reverse DRC channel requesting one of several forward data rates from the access terminal to the access network as many times as the repetition frequency, if the access terminal determines that a slotted transmission mode is disabled, by using the signaling message;
• determining a slotting rate by inverting the repetition frequency, if the access terminal determines that the slotted transmission mode is enabled or upon receipt of a slotted transmission order message from the access network;
• and
• slotting the reverse DRC channel at a predetermined number of slots according to the determined slotting rate.

A data transmission method for an access terminal in a high data rate mobile communication system, comprising the steps of:

• creating a DRC channel signal by channel-spreading DRC information indicating one of a plurality of forward data rates;
• determining a slotting rate of the DRC channel by using a signaling message from an access network;
• and
• slotting and transmitting the DRC channel at every slot according to the determined slotting rate,
• wherein the signaling message includes slotting rate information and information on a slot where transmitting the DRC channel is started.