Method for transmitting control channel in a mobile communication system

Abstract

In a mobile communication system using both a discontinuous transmission scheme and a compressed mode transmission scheme, if a preamble and/or a postamble of a channel including control information for transmitting a specific channel overlaps a compressed mode (CM) gap, an overall transmission unit is not transmitted or remaining signals of the transmission unit excluding the preamble and/or the postamble overlapping the CM gap are transmitted.

What is claimed is: 
     
       1. A method for transmitting channel signals in a mobile communication system using a compressed mode transmission scheme and a discontinuous transmission (DTX) scheme, the method comprising:
 if a transmission interval of one of a preamble and a postamble of a second channel signal partially overlaps a compressed mode gap, transmitting the second channel signal in a remaining transmission interval excluding the preamble or the postamble which is partially overlapped with the compressed mode gap, wherein the second channel signal includes information used for detecting a first channel signal and the compressed mode gap is an interval in which the channel signals are not transmitted according to the compressed mode transmission scheme; and 
 transmitting the first channel signal at a predetermined time after the transmission of the second channel signal is started. 
 
     
     
       2. The method according to  claim 1 , wherein the second channel signal is transmitted through a dedicated physical control channel (DPCCH), and the first channel signal is transmitted through one of an enhanced-dedicated channel (E-DCH) and a high speed-dedicated physical control channel (HS-DPCCH). 
     
     
       3. The method according to  claim 1 , wherein the first channel signal and the second channel signal are multiplexed using different codes. 
     
     
       4. The method according to  claim 1 , wherein each of the first channel signal and the second channel signal includes a DTX interval in which no signal is transmitted according to the DTX scheme. 
     
     
       5. A user equipment (UE) for transmitting channel signals in a mobile communication system using a compressed mode transmission scheme and a discontinuous transmission (DTX) scheme, the UE comprising:
 if a transmission interval of one of a preamble and a postamble of a second channel signal partially overlaps a compressed mode gap, 
 means for transmitting the second channel signal in a remaining transmission interval excluding the preamble or the postamble which is partially overlapped with the compressed mode gap, wherein the second channel signal includes information used for detecting a first channel signal and the compressed mode gap is an interval in which the channel signals are not transmitted according to the compressed mode transmission scheme; and 
 means for transmitting the first channel signal at a predetermined time after the transmission of the second channel signal is started. 
 
     
     
       6. The user equipment according to  claim 5 , wherein the second channel signal is transmitted through a dedicated physical control channel (DPCCH), and the first channel signal is transmitted through one of an enhanced-dedicated channel (E-DCH) and a high speed-dedicated physical control channel (HS-DPCCH). 
     
     
       7. The user equipment according to  claim 5 , wherein each of the first channel signal and the second channel signal includes a DTX interval in which no signal is transmitted according to the DTX scheme. 
     
     
       8. The user equipment according to  claim 5 , wherein the first channel signal and the second channel signal are multiplexed using different codes. 
     
     
       9. A method for receiving channel signals in a mobile communication system using a compressed mode transmission scheme and a discontinuous transmission (DTX) scheme, the method comprising:
 if a transmission interval of one of a preamble and a postamble of a second channel signal partially overlaps a compressed mode gap, 
 receiving, by an e-Node B (eNB), the second channel signal in a remaining transmission interval excluding the preamble or the postamble which is partially overlapped with the compressed mode gap, wherein the second channel signal includes information used for detecting a first channel signal and the compressed mode gap is an interval in which the channel signals are not transmitted according to the compressed mode transmission scheme; and 
 receiving, by the eNB, the first channel signal at a predetermined time after the transmission of the second channel signal is started. 
 
     
     
       10. The method according to  claim 9 , wherein the second channel signal is transmitted through a dedicated physical control channel (DPCCH), and the first channel signal is transmitted through one of an enhanced- dedicated channel (E-DCH) and a high speed-dedicated physical control channel (HS-DPCCH). 
     
     
       11. The method according to  claim 9 , wherein the first channel signal and the second channel signal are multiplexed using different codes. 
     
     
       12. The method according to  claim 9 , wherein each of the first channel signal and the second channel signal includes a DTX interval in which signal is transmitted according to the DTX scheme. 
     
     
       13. An e-Node B (eNB) for receiving channel signals in a mobile communication system using a compressed mode transmission scheme and a discontinuous transmission (DTX) scheme, the eNB comprising:
 if a transmission interval of one of a preamble and a postamble of a second channel signal partially overlaps a compressed mode gap, 
 means for receiving the second channel signal in a remaining transmission interval excluding the preamble or the postamble which is partially overlapped with the compressed mode gap, wherein the second channel signal includes information used for detecting a first channel signal and the compressed mode gap is an interval in which the channel signals are not transmitted according to the compressed mode transmission scheme; and 
 means for receiving the first channel signal at a predetermined time after the transmission of the second channel signal is started. 
 
     
     
       14. The eNB according to  claim 13 , wherein the second channel signal is transmitted through a dedicated physical control channel (DPCCH), and the first channel signal is transmitted through one of an enhanced-dedicated channel (E-DCH) and a high speed-dedicated physical control channel (HS-DPCCH). 
     
     
       15. The eNB according to  claim 13 , wherein the first channel signal and the second channel signal are multiplexed using different codes. 
     
     
       16. The eNB according to  claim 13 , wherein each of the first channel signal and the second channel signal includes a DTX interval in which no signal is transmitted according to the DTX scheme.