Method for processing physical downlink control channel data, transmitting end, and user equipment

A method for processing physical downlink control channel data, comprising:

• generating a scrambling sequence corresponding to a control channel element according to an index number of the control channel element and/or a modulation mode used by the control channel element;
• receiving scrambled physical downlink control channel data from a transmitting end;
• and
• performing descrambling on the physical downlink control channel data by using the scrambling sequence,
• wherein the generating a scrambling sequence corresponding to a control channel element according to an index number of the control channel element and/or a modulation mode used by the control channel element comprises:
• generating a specific long sequence according to a UE Specific parameter;
• and
• extracting, according to a data length corresponding to the modulation mode used by the control channel element of the user equipment, a scrambling sequence corresponding to the control channel element in the specific long sequence.

A transmitting end, comprising:

• a scrambling sequence generating unit, configured to generate a scrambling sequence corresponding to a control channel element according to an index number of the control channel element and/or a modulation mode used by the control channel element;
• a scrambling unit, configured to perform scrambling on physical downlink control channel data by using the scrambling sequence;
• and
• a transmitting unit, configured to send the scrambled physical downlink control channel data to a user equipment,
• wherein the scrambling sequence generating unit comprises:
• a long sequence generating unit, configured to generate a specific long sequence for the user equipment according to a UE Specific parameter;
• and
• a scrambling sequence extracting unit, configured to extract, according to a data length corresponding to the modulation mode used by the control channel element of the user equipment, a scrambling sequence corresponding to the control channel element in the specific long sequence.

A user equipment, comprising:

• a scrambling sequence generating unit, configured to generate a scrambling sequence corresponding to a control channel element according to an index number of the control channel element and/or a modulation mode used by the control channel element;
• a receiving unit, configured to receive scrambled physical downlink control channel data from a transmitting end;
• and
• a descrambling unit, configured to perform descrambling on physical downlink control channel data by using the scrambling sequence,
• wherein the scrambling sequence generating unit comprises:
• a long sequence generating unit, configured to generate a specific long sequence according to a UE Specific parameter;
• and
• a scrambling sequence extracting unit, configured to extract, according to a data length corresponding to the modulation mode used by the control channel element of the user equipment, a scrambling sequence corresponding to the control channel element in the specific long sequence.