METHOD FOR DETECTING PHYSICAL DOWNLINK CONTROL CHANNEL FOR LTE SYSTEM

摘要

PURPOSE: A down link control information detecting method in an LTE system is provided to rapidly detect overall control information. CONSTITUTION: A LET system selects an unselected control signal format among selectable control signal formats for signals received at a base station before getting signals as much as the length of the selected control signal format (S110). The LTE system selects unselected one among selectable control information formats (S120). The LTE system performs decoding using PDCCH signals and selected control information formats (S130). The LTE system draws a remainder by dividing the decoded signal with a cyclic redundancy check (CRC) pattern before storing the remainder with the selected control information or control information format using the remainder as radio network temporary identifier (RNTI) information (S140, S150). [Reference numerals] (AA) Start; (BB,DD) No; (CC,EE) Yes; (FF) End; (S100) Receive a base station signal; (S110) Select one PDCCH format and get the PDCCH format as much as the format's predetermined length; (S120) Select one DCI format; (S130) Decode using a PDCCH signal and information about the DCI format; (S140) Divide the decoded signal by a CRC pattern to extract the remaining; (S150) Save a DCI, the DCI format, and RNTI information; (S160) Have all the DCI formats been selected ?; (S170) Select one DIC out of those not-selected DCI formats; (S180) Have all the PDCCH formats been selected ?; (S190) Select one PDCCH out of those not-selected PDCCH formats and get the PDCCH format as much as the format's predetermined length