Channel communication device and method for CDMA communication system

A terminal communication device for a CDMA communication system, comprising:

• a dedicated control channel generator for discontinuously generating a control message according to the existence/nonexistence of the control message for a dedicated control channel;
• a pilot channel generator for generating a pilot signal by adding a power control signal to said pilot signal thereby eliminating the need to assign a new channel to transmit the power control signal;
• a fundamental channel generator for generating a voice signal;
• a supplemental channel generator for generating data;
• and
• a spreader for spreading signals output from the channel generators with a PN.

A terminal communication device for a CDMA communication system, comprising:

• a dedicated control channel generator for discontinuously generating a control message for a dedicated control channel, said control message having a frame length variable according to a control type and a data rate of 9.6 Kbps;
• a pilot channel generator for generating a pilot signal by adding a power control signal to said pilot signal thereby eliminating the need to assign a new channel to transmit the power control signal;
• a fundamental channel generator for generating a voice signal at a variable rate;
• a supplemental channel generator for generating data at a scheduled rate;
• and
• a spreader for spreading signals output from the channel generators with a PN (pseudo noise) sequence.

A terminal communication device for a CDMA communication system, comprising:

• a dedicated control channel generator for discontinuously generating a control message for a dedicated control channel and spreading said control message with an orthogonal code for an allocated dedicated control channel to generate a dedicated control channel signal, said control message having a frame length variable according to a control type and having a data rate of 9.6 Kbps;
• a pilot channel generator for spreading a pilot signal and a power control signal added to said pilot signal by using an orthogonal code allocated for a pilot channel to generate a pilot channel signal thereby eliminating the need to assign a new channel to transmit the power control signal;
• a fundamental channel generator for spreading a voice signal with an orthogonal code allocated for a fundamental channel to generate a fundamental channel signal;
• a supplemental channel generator for spreading data with an orthogonal code allocated for a supplemental channel to generate a supplemental channel signal;
• an adder for generating a first channel signal by adding said dedicated control channel signal to said pilot channel signal, and generating a second channel signal by adding said fundamental channel signal to said supplemental channel signal;
• and
• a spreader for spreading said first and second channel signals with corresponding common PN sequences for a base station.

A method for communicating dedicated channel information in a base station for a CDMA communication system, comprising the steps of:

• allocating a dedicated fundamental channel for communicating the dedicated channel information and a dedicated control channel for communicating control information;
• transmitting information via the dedicated fundamental channel and the control information via a dedicated control channel;
• and
• upon termination of communication, releasing the dedicated fundamental channel and the dedicated control channel;
• wherein the channel communicating the control information maintains a control hold status for a predetermined time before being released.

A method for communicating data in a base station for a CDMA communication system, comprising the steps of:

• a) allocating a dedicated supplemental channel for communicating the data and a dedicated control channel for communicating control information;
• b) transmitting the data via the dedicated supplemental channel and the control information via the dedicated control channel;
• and
• c) upon termination of communication, releasing the dedicated channels;
• wherein the channel communicating the control information maintains a control hold status for a predetermined time before being released.

A method for communicating dedicated channel information in a base station for a CDMA communication system, comprising the steps of:

• a) allocating a dedicated fundamental channel for communicating voice, a dedicated supplemental channel for communicating data and a dedicated control channel for communicating control information;
• b) transmitting the voice via the dedicated fundamental channel, the data via the dedicated supplemental channel and the control information via the dedicated control channel;
• c) upon termination of voice communication, releasing the dedicated fundamental channel;
• and
• d) upon termination of data communication, releasing the dedicated supplemental channel;
• wherein the channel communicating the control information maintains a control hold status for a predetermined time before being released.