Method for coordinated multi-cell transmission, central controller and user equipment

A method for coordinated multi-cell transmission, comprising:

• determining, by a central controller, at least one candidate cooperating set in a super-cell, wherein each cell in the super-cell belongs to at least one candidate cooperating set, and broadcasting information of the at least one candidate cooperating set to all User Equipments (UEs) in the super-cell;
• measuring, by each of all the UE, the at least one candidate cooperating set, and feeding back channel information obtained by measurement to the central controller;
• and
• selecting, by the central controller, a cooperating set from the at least one candidate cooperating set for each of the UEs according to the channel information fed back by each of the UEs, and determining all cooperating sets in the super-cell and UEs participating in cooperation in each cooperating set according to the cooperating set selected for each of the UEs.

A central controller of a super-cell, comprising:

• a candidate cooperating set determining unit to determine at least one candidate cooperating set in a super-cell, wherein each cell in the super-cell belongs to at least one candidate cooperating set;
• and adapted to broadcast information of the at least one candidate cooperating set determined to all UEs in the super-cell;
• a cooperating set information obtaining unit to receive information of a cooperating set of a UE fed back by the UE;
• and
• a scheduling unit to determine all cooperating sets in the super-cell and UEs participating in cooperation in each cooperating set according to information of the cooperating sets selected by all the UEs.

A central controller of a super-cell, comprising:

• a candidate cooperating set determining unit to determine at least one candidate cooperating set in the super-cell, wherein each cell in the super-cell belongs to at least one candidate cooperating set;
• and adapted to broadcast information of the at least one candidate cooperating set determined to all UEs in the super-cell;
• a channel information obtaining unit to receive channel information fed back by each of the UEs;
• a cooperating set selecting unit to select for each of the UEs a cooperating set from the at least one candidate cooperating set according to the channel information fed back by each of the UEs;
• and
• a scheduling unit to determine all cooperating sets in the super-cell and UEs participating in cooperation in each cooperating set according to information of the cooperating set selected by each of the UEs.

A User Equipment (UE), comprising:

• a candidate cooperating set information receiving unit to receive information of all candidate cooperating sets broadcasted by a central controller of a super-cell;
• a measuring unit to measure all the candidate cooperating sets;
• and
• a channel information feedback unit to feed back channel information obtained by measurement to the central controller.