Computation of channel state feedback in systems using common reference signal interference cancelation

A method of wireless communication, comprising:

• receiving, by a User Equipment (UE), signaling that indicates resource partitioning information for a plurality of partitioned resources, wherein the plurality of partitioned resources are partitioned between a serving base station and at least one neighbor base station;
• determining an expected interference on at least one partitioned resource, wherein the resource partitioning information identifies the at least one neighbor base station as a source of the expected interference;
• receiving a signal, the signal comprising a plurality of reference signals from the serving base station and the at least one neighbor base station;
• canceling one or more interfering reference signals corresponding to the at least one neighbor base station, wherein the one or more canceled interfering reference signals include one or more reference signals for the at least one neighbor base station that overlap one or more reference signals from the serving base station;
• determining a channel quality value for the one or more reference signals from the serving base station after the canceling;
• adjusting the channel quality value by adding interference based on the one or more interfering reference signals associated with the at least one neighbor base station;
• and
• reporting channel quality for the at least one partitioned resource, the channel quality corresponding to the adjusted channel quality value.

A wireless communications apparatus, comprising:

• means for receiving, by a User Equipment (UE), signaling that indicates resource partitioning information for a plurality of partitioned resources, wherein the plurality of partitioned resources are partitioned between a serving base station and at least one neighbor base station;
• means for determining, by the UE, whether to expect interference from the at least one neighbor base station on at least one partitioned resource associated with a channel quality report;
• means for cancelling, if the determining indicates that there is no expected interference from the at least one neighbor base station on the at least one partitioned resource, one or more interfering reference signals from the at least one partitioned resource, wherein the one or more interfering reference signals are from the at least one neighbor base station;
• means for determining a channel quality value for one or more reference signals from the serving base station in the at least one partitioned resource;
• and
• means for reporting channel quality for the at least one partitioned resource, the channel quality corresponding to the channel quality value.

A wireless communications apparatus, comprising:

• means for receiving, by a User Equipment (UE), signaling that indicates resource partitioning information for a plurality of partitioned resources, wherein the plurality of partitioned resources are partitioned between a serving base station and at least one neighbor base station;
• means for determining an expected interference on at least one partitioned resource, wherein the resource partitioning information identifies the at least one neighbor base station as a source of the expected interference;
• means for receiving a signal, the signal comprising a plurality of reference signals from the serving base station and the at least one neighbor base station;
• means for canceling one or more interfering reference signals corresponding to the at least one neighbor base station, wherein the one or more canceled interfering reference signals include one or more reference signals for the at least one neighbor base station that overlap one or more reference signals from the serving base station;
• means for determining a channel quality value for the one or more reference signals from the serving base station after the canceling;
• means for adjusting the channel quality value by adding interference based on the one or more interfering reference signals associated with the at least one neighbor base station;
• and
• means for reporting channel quality for the at least one partitioned resource, the channel quality corresponding to the adjusted channel quality value.

A non-transitory computer-readable medium having program code stored thereon that, when executed by a computer, causes the computer to:

• receive, by a User Equipment (UE), signaling that indicates resource partitioning information for a plurality of partitioned resources, wherein the plurality of partitioned resources are partitioned between a serving base station and at least one neighbor base station;
• determine, by the UE, whether to expect interference from the at least one neighbor base station on at least one partitioned resource associated with a channel quality report;
• if the determining indicates that there is no expected interference from the at least one neighbor base station on the at least one partitioned resource, cancel one or more interfering reference signals from the at least one partitioned resource, wherein the one or more interfering reference signals are from the at least one neighbor base station;
• determine a channel quality value for one or more reference signals from the serving base station in the at least one partitioned resource;
• and
• report channel quality for the at least one partitioned resource, the channel quality corresponding to the channel quality value.

A non-transitory computer-readable medium having program code stored thereon that, when executed by a computer, causes the computer to:

• receive, by a User Equipment (UE), signaling that indicates resource partitioning information for a plurality of partitioned resources, wherein the plurality of partitioned resources are partitioned between a serving base station and at least one neighbor base station;
• determine an expected interference on at least one partitioned resource, wherein the resource partitioning information identifies the at least one neighbor base station as a source of the expected interference;
• receive a signal, the signal comprising a plurality of reference signals from the serving base station and the at least one neighbor base station;
• cancel one or more interfering reference signals corresponding to the at least one neighbor base station, wherein the one or more canceled interfering reference signals include one or more reference signals for the at least one neighbor base station that overlap one or more reference signals from the serving base station;
• determine a channel quality value for the one or more reference signals from the serving base station after the canceling;
• adjust the channel quality value by adding interference based on the one or more interfering reference signals associated with the at least one neighbor base station;
• and
• report channel quality for the at least one partitioned resource, the channel quality corresponding to the adjusted channel quality value.

An apparatus configured for wireless communication, the apparatus comprising:

• at least one processor configured to:
• receive, by a User Equipment (UE), signaling that indicates resource partitioning information for a plurality of partitioned resources, wherein the plurality of partitioned resources are partitioned between a serving base station and at least one neighbor base station;
• determine, by the UE, whether to expect interference from the at least one neighbor base station on at least one partitioned resource associated with a channel quality report;
• if the determining indicates that there is no expected interference from the at least one neighbor base station on the at least one partitioned resource, cancel one or more interfering reference signals from the at least one partitioned resource, wherein the one or more interfering reference signals are from the at least one neighbor base station;
• determine a channel quality value for one or more reference signals from the serving base station in the at least one partitioned resource;
• and
• report channel quality for the at least one partitioned resource, the channel quality corresponding to the channel quality value;
• and
• a memory coupled to said at least one processor.

An apparatus configured for wireless communication, the apparatus comprising:

• at least one processor configured to:
• receive, by a User Equipment (UE), signaling that indicates resource partitioning information for a plurality of partitioned resources, wherein the plurality of partitioned resources are partitioned between a serving base station and at least one neighbor base station;
• determine an expected interference on at least one partitioned resource, wherein the resource partitioning information identifies the at least one neighbor base station as a source of the expected interference;
• receive a signal, the signal comprising a plurality of reference signals from the serving base station and the at least one neighbor base station;
• cancel one or more interfering reference signals corresponding to the at least one neighbor base station, wherein the one or more canceled interfering reference signals include one or more reference signals for the at least one neighbor base station that overlap one or more reference signals from the serving base station;
• determine a channel quality value for the one or more reference signals from the serving base station after the canceling;
• adjust the channel quality value by adding interference based on the one or more interfering reference signals associated with the at least one neighbor base station;
• and
• report channel quality for the at least one partitioned resource, the channel quality corresponding to the channel quality value;
• and
• a memory coupled to said at least one processor.