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A method and device for gating the transmission of dedicated control channels in a CDMA communication system is disclosed. In the device and method, if a base station (mobile station) determines whether there is no data to transmit to a mobile station (base station) for predetermined period of time,

A method and device for gating the transmission of dedicated control channels in a CDMA communication system is disclosed. In the device and method, if a base station (mobile station) determines whether there is no data to transmit to a mobile station (base station) for predetermined period of time, the base station (mobile station) gates transmission of control information according to a predetermined pattern on a dedicated control channel, which channel is used for transmitting control information to the mobile station (base station). Control information transmitted from the base station to the mobile station includes Transport Format Combination Indicator (TFCI), Transmit Power Control (TPC), and a pilot symbol. Control information transmitted from the mobile station to the base station includes TFCI, TPC, a pilot symbol, and FeedBack Information (FBI) for information about a transmit diversity antenna system. In a downlink DPCCH, transmission of the TFCI, TPC and pilot symbol is transmitted discontinuously at every predetermined nth slot out of the total slots of a frame during gated transmission. Alternatively, transmission of the pilot symbol can be transmitted discontinuously at every predetermined nth slot and the TFCI and the TPC at every (n+1)th slot. In an uplink DPCCH, the TFCI, TPC, FBI and pilot symbol are transmitted discontinuously at a specific slot during gated transmission. In addition, the TPC for power control can be continuously transmitted for full rate power control when there is traffic data for transmission.

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1. A method for transmitting downlink signals in a base station which communicates with a base station that asynchronously operates with other base stations, the down link signals including a data transmission channel signal and a physical control signal which have control data related to connection

1. A method for transmitting downlink signals in a base station which communicates with a base station that asynchronously operates with other base stations, the down link signals including a data transmission channel signal and a physical control signal which have control data related to connection or release of the data transmission channel and the physical control signal, correspond to the data transmission channel when there is data to transmit on the data transmission channel for a mobile communication system, comprising the steps of: determining whether the base station has downlink data to transmit to the mobile station on the data transmission channel; and gating transmission of the physical control signal according to a predetermined gated on or off pattern when there is no data to transmit on the data transmission channel for a predetermined period of time. 2. The method as claimed in claim 1, wherein the physical control signal is transmitted in a gated on slot format, said slot having a power control bit which controls the uplink transmission power.3. The method as claimed in claim 2, wherein the slot format includes pilot symbols, transport format combination indicator (TFCI) bits and the power control bit, and the predetermined pattern is a pattern for gating transmission of the pilot symbol, the TFCI bits and the power control bit at a predetermined nth slot out of total slots of a frame.4. The method as claimed in claim 3, wherein the slot format includes pilot symbols, TFCI bits and power control bit, and the predetermined pattern is a pattern for gating transmission of the pilot symbols at a predetermined nth slot and the TFCI bits and the power control bit at a (n+1)th slot.5. The method as claimed in claim 2, wherein the power control bit gating transmission is regularly maintained when the base station transmits the data to the mobile station.6. A method for transmitting a uplink signals in a mobile station which communicates with a base station that asynchronously operates with other base stations, the uplink signals including a data transmission channel signal and a physical control signal which have control data related to connection or release of the data transmission channel and the physical control signal, correspond to the data transmission channel when there is data to transmit on the data transmission channel of a mobile communication system, comprising the steps of: determining whether the mobile station has the data to transmit to the base station on the data transmission channel; and gating transmission of the physical control signal according to a predetermined gated on or off pattern when there is no data to transmit on the data transmission channel for a predetermined period of time. 7. The method as claimed in claim 6, wherein the physical control signal have a frame format, and said frame including a plurality of slots.8. The method as claimed in claim 6, wherein the physical control signal includes at least frame format of the data transmission channel.9. The method as claimed in claim 6, wherein the physical control signal includes pilot symbols, transport format combination indicator (TFCI) bits, and feedback information (FBI) bits for at least one phase difference between at least two antennas when the base station uses transmit diversity antennas.10. The method as claimed in claim 6, wherein the predetermined gated on or off pattern is a pattern for gating transmission of pilot symbols, TFCI bits, a power control bit, and the FBI bits at predetermined slots.11. The method as claimed in claim 6, wherein the physical control signal is transmitted continuously while the mobile station transmit the data to the base station on the data transmission channel.12. The method as claimed in claim 6, wherein the transmission power of the data on the data transmission channel is increased to more than regular transmission in transition from a gated mode to normal mode.13. A method for transmitting control information in a mobile communication system, comprising the steps of: (a) determining whether a base station has data to transmit to a mobile station; (b) transmitting a gating request message indicating a first gating start time and a first gating pattern to a mobile station when there has been no data to transmit for a predetermined period of time; (c) gating, when the base station has received a gating request message and the first gating start time has been reached, transmission of first control information according to the first gating pattern within a frame on a downlink dedicated control channel, said downlink dedicated control channel being used for transmitting the first control information to the mobile station; (d) determining whether the mobile station has data to transmit to the base station; (e) transmitting a gating request message indicating a second gating start time and a second gating pattern to the base station when there has been no data to transmit for a predetermined period of time; (f) gating, when the mobile station has received a gating request message from the base station and the second gating start time has been reached, transmission of second control information according to the second gating pattern within a frame on an uplink dedicated control channel, said uplink dedicated control channel being used for transmitting the second control information to the base station. 14. The method as claimed in claim 13, wherein the frame on the downlink dedicated control channel is segmented into a plurality of slots and the first gating pattern is a pattern for gating transmission of the first control information at predetermined slots.15. The method as claimed in claim 13, wherein the first control information includes power control information.16. The method as claimed in claim 14, wherein the first control information includes a pilot symbol, format information about a format of transmission data, and power information for power control.17. The method as claimed in claim 16, wherein the first gating pattern is a pattern for gating transmission of the pilot symbol, the format information and the power information at every predetermined nth slot.18. The method as claimed in claim 16, wherein the first gating pattern is a pattern for gating transmission of the pilot symbol at a predetermined nth slot, and the format information and the power information at a (n+1)th slot.19. The method as claimed in claim 15, wherein gated transmission for the power control information is maintained when the base station generates data to be transmitted to the mobile station during gated transmission of the first control information.20. The method as claimed in claim 13, wherein the frame on the uplink dedicated control channel is segmented into a plurality of slots and the second gating pattern is a pattern for gating transmission of the second control information at predetermined slots.21. The method as claimed in claim 20, wherein the second control information includes power control information.22. The method as claimed in claim 20, wherein the second control information includes a pilot symbol, format information about a format of the transmission data, and feedback request information for requesting information about at least one phase difference between at least two antennas when the base station uses transmit diversity antennas, and power information for power control.23. The method as claimed in claim 22, wherein the second gating pattern is a pattern for gating transmission of the pilot symbol, the format information, the feedback request information and the power information at predetermined slots.24. The method as claimed in claim 21, wherein gated transmission for the power control information is maintained when the mobile station has data to transmit to the base station during gated transmission of the second control information.25. The method as claimed in claim 22, wher ein gated transmission for the feedback request information and the power information is maintained when the mobile station has data to transmit to the base station during gated transmission of the second control information.26. The method as claimed in claim 13, wherein there is an time offset between the first gating pattern and the second gating pattern.