Device and method for assigning spreading code for reverse common channel message in CDMA communication system

A common channel message communicating device in a mobile station of a CDMA communication system, comprising:

• a control message analyzer for analyzing information representative of an assigned spreading code included in a control message received on a forward common channel;
• a spreading code generator for generating a spreading code based on the spreading code information;
• and
• a channel transmitter for spreading a reverse common channel message by the spreading code and transmitting the spread reverse common channel message,
• wherein the reverse common channel message is sent to the base station in predetermined time intervals.

A common channel message communicating device in a CDMA communication system, comprising:

• a base station having a control message generator for generating a control message including information representative of a spreading code for spreading a reverse common channel message, and a forward common channel transmitter for transmitting the control message on a forward common channel;
• and
• a mobile station having a control message analyzer for analyzing information representative of an assigned spreading code included in the control message received on the forward common channel, a spreading code generator for generating a spreading code based on the spreading code information, and a channel transmitter for spreading the reverse common channel message by the spreading code and transmitting the spread reverse common channel messages,
• wherein the reverse common channel message is sent to the base station in predetermined time intervals.

A common channel message communicating method in a base station of a CDMA communication system, comprising the steps of:

• generating a control message including information representative of a spreading code for spreading a reverse common channel message;
• and
• transmitting the control message on a forward common channel,
• wherein the reverse common channel message is sent to the base station in predetermined time intervals.

A common channel message communicating method in a mobile station of a CDMA communication system, comprising the steps of:

• analysing information representative of an assigned spreading code included in a control message received on a forward common channel;
• generating a spreading code based on the spreading code information;
• and
• spreading a reverse common channel message by the spreading code and transmitting the spread reverse common channel message,
• wherein the reverse common channel message is sent to the base station in predetermined time intervals.

A common channel message communicating method in a CDMA communication system, comprising the steps of:

• causing a base station to generate a control message including information representative of a spreading code for spreading a reverse common channel message;
• causing the base station to transmit the control message on a forward common channel;
• causing a mobile station to analyse the information representative of an assigned spreading code included in the control message received on the forward common channel;
• causing the mobile station to generate a spreading code based on the spreading code information;
• and
• causing the mobile station to spread the reverse common channel message by the spreading code and transmit the spread reverse common channel message,
• wherein the reverse common channel message is sent to the base station in predetermined time intervals.