System and method for information feedback in a wireless communications system with coordinated multiple point transmission

A method for operating in a communications system, the communications system having a first communications controller and a second communications controller participating in a coordinated multiple point (CoMP) cooperation set, the CoMP cooperation set further comprising at least one additional communication controller, the method comprising:

• receiving a report of a CoMP processing technique from a communications device;
• receiving channel information in accordance with the CoMP processing technique from the communications device;
• adjusting a transmitter in accordance with the channel information;
• transmitting information to the communications device using the adjusted transmitter;
• overriding the CoMP processing technique;
• selecting an alternate CoMP processing technique;
• and
• receiving an additional CoMP processing technique for each additional communications controller of the at least one additional communications controller,
• wherein overriding the CoMP processing technique comprises independently overriding each additional CoMP processing technique for each additional communications controller of the at least one additional communications controller.

The method for operating in a communication system, the communication system having a first communications controller and a second communications controller participating in a coordinated multiple point (CoMP) cooperation set, the method comprising:

• receiving a report of a CoMP processing techniques from a communication device;
• receiving channel information in accordance with the CoMP processing technique from the communications device;
• adjusting a transmitter in accordance with the channel information;
• transmitting information to the communications device using the adjusted transmitter;
• receiving an adjustment for the channel information from the communications device;
• determining if the adjustment should be applied;
• applying the adjustment to the channel information if the adjustment should be applied;
• and
• not applying the adjustment to the channel information if the adjustment should not be applied.

The communications device comprising:

• a receiver configured to receive incoming information from a data input port;
• a transmitter configured to transmit outgoing information to a data output port;
• and
• a controller coupled to the transmitter and to the receiver, the controller configured to select a coordinated multiple point (CoMP) processing technique, to compute and adjustment for channel information, and to provide the adjustments, wherein the controller comprises:
• a CoMP select unit configured to select the CoMP processing technique in accordance with operating conditions of the communications device and a list of CoMP processing techniques;
• an adjustment compute unit coupled to the CoMP select unit, the adjustment compute unit configured to compute adjustment to the channel information in accordance with the selected CoMP processing technique;
• and
• an adjustment provide unit coupled to the adjustment compute unit, the adjustment provide unit configured to provide adjustments computed by the adjustment compute unit to a serving cell of the communications device.

An apparatus comprising:

• a processor;
• and
• a non-transitory computer readable storage medium storing programming for execution by the processor, the programming including instructions to:
• select one out of a plurality of coordinated multiple point (CoMP) processing techniques for data transmission, wherein at least some of the plurality of CoMP processing techniques have different feedback requirements;
• identify required channel information in accordance with the feedback requirements of the selected CoMP processing techniques;
• and
• selectively report the required channel information to a communication controller,
• wherein the instruction to selectively report the channel information to the communications controller includes instruction to report an amount of channel information required to support the selected CoMP processing technique, wherein the amount of channel information required to support the selected CoMP processing technique is less than a maximum amount of channel information capable of being reported to the communication controller.