Techniques for sending or receiving channel state information reports associated with a coordinated multi-point scheme

An apparatus comprising:

• a processor circuit for user equipment (UE) capable of operating in compliance with one or more 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) standards;
• a receive component for execution by the processor circuit to receive a coordinated multi-point (CoMP) measurement associated with a CoMP scheme for the UE to receive coordinated signals from three or more transmission points;
• a generation component for execution by the processor circuit to generate two or more channel state information (CSI) reports using a CSI processes set associated with the CoMP scheme, the CSI processes set to comprise three or more CSI processes, each of the three or more CSI processes to correspond to a respective one of the three or more transmission points;
• a constrain component for execution by the processor circuit to constrain CSI feedback for implementing the CoMP scheme, constraining the CSI feedback to include:
• selecting two of the three or more transmission points to which the three or more CSI processes correspond;
• and
• limiting a number of CSI reports based on only considering transmission cases for the two selected transmission points;
• a report component for execution by the processor circuit to send the two or more generated CSI reports to facilitate implementing the CoMP scheme;
• the receive component to receive a CSI trigger, the generation component to generate the two or more CSI reports in response to receipt of the CSI trigger, the constrain component to constrain the CSI feedback by increasing an amount of time for the generation component to generate the two or more CSI reports by:
• allowing the generation component to determine a CSI value for a given CSI report using the CSI processes set at least N subframes prior to receiving the CSI trigger;
• allowing the report component to send the given CSI report in K subframes after receiving the CSI trigger, where N and K equate to any positive whole integer;
• and
• scaling a CSI report generation periodicity associated with each generated CSI report from among the two or more CSI reports such that the UE is capable of serially processing CSI processes sets respectively associated with each generated CSI report.

At least one non-transitory computer-readable storage medium comprising a set of instructions that, in response to being executed at user equipment (UE) capable of operating in compliance with one or more 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) standards, cause the UE to:

• receive a coordinated multi-point (CoMP) measurement associated with a CoMP scheme for the UE to receive coordinated signals from three or more transmission points;
• generate two or more channel state information (CSI) reports using a CSI processes set associated with the CoMP scheme, the CSI processes set to comprise three or more CSI processes, each of the three or more CSI processes to correspond to a respective one of the three or more transmission points;
• constrain CSI feedback for implementing the CoMP scheme, constraining the CSI feedback to include:
• selecting two of the three or more transmission points to which the three or more CSI processes correspond;
• and
• limiting a number of CSI reports based on only considering transmission cases for the two selected transmission points;
• send the two or more generated CSI reports to facilitate implementing the CoMP scheme;
• the instructions, in response to being executed at the UE, to cause the UE to:
• receive a CSI trigger from an evolved node B (eNB) comprised among the three or more transmission points;
• generate the two or more CSI reports in response to receipt of the CSI trigger;
• constrain the CSI feedback by increasing an amount of time for generation of the two or more CSI reports by:
• allowing determination of a CSI value for a given CSI report using the CSI processes set at least N subframes prior to receiving the CSI trigger;
• allowing the given CSI report to be sent within K subframes after receiving the CSI trigger, where N and K equate to any positive whole integer;
• and
• scaling a CSI report generation periodicity associated with each generated CSI report from among the two or more CSI reports such that the UE is capable of serially processing CSI processes sets respectively associated with each generated CSI report;
• and
• transmit the two or more CSI reports to the eNB.