Method and apparatus for enabling channel and interference estimations in macro/rrh system

A method of wireless communications, comprising:

• receiving, by a user equipment (UE), a plurality of resource patterns for a plurality of resource pattern groups, wherein each resource pattern group includes a first set of resources corresponding to a first reference signal pattern for channel estimation on which a first transmission point in a serving cell transmits channel state information reference signals (CSI-RSs) and a second set of resources corresponding to a second reference signal pattern for interference estimation on which a second transmission point in the serving cell transmits the CSI-RSs and on which the first transmission point in the serving cell does not transit the CSI-RSs;
• performing channel estimation for two or more of the plurality of resource pattern groups;
• performing interference estimation for the two or more of the plurality of resource pattern groups;
• generating a channel state condition report for at least one of the two or more of the plurality of resource pattern groups based on at least a portion of the interference and channel estimations;
• and
• transmitting the channel state condition report.

An apparatus for wireless communication, comprising:

• means for signaling, to a user equipment (UE), a plurality of resource patterns for a plurality of resource pattern groups to measure channel state conditions, wherein each resource pattern group includes a first set of resources corresponding to a first reference signal pattern for channel estimation on which a first transmission point in a serving cell transmits channel state information reference signals (CSI-RSs) and a second set of resources corresponding to a second reference signal pattern for interference estimation on which a second transmission point in the serving cell transmits the CSI-RSs and on which the first transmission point in the serving cell does not transit the CSI-RSs;
• means for receiving at least one channel state condition report from the UE based, at least in part, on one or more of the plurality of resource pattern groups;
• and
• means for scheduling one or more resources for use by the UE based on the at least one received channel state condition report.

An apparatus of wireless communications, comprising:

• means for receiving, by a user equipment (UE), a plurality of resource patterns for a plurality of resource pattern groups, wherein each resource pattern group includes a first set of resources corresponding to a first reference signal pattern for channel estimation on which a first transmission point in a serving cell transmits channel state information reference signals (CSI-RSs) and a second set of resources corresponding to a second reference signal pattern for interference estimation on which a second transmission point in the serving cell transmits the CSI-RSs and on which the first transmission point in the serving cell does not transit the CSI-RSs;
• means for performing channel estimation for two or more of the plurality of resource pattern groups;
• means for performing interference estimation for the two or more of the plurality of resource pattern groups;
• means for generating a channel state condition report for at least one of the two or more of the plurality of resource pattern groups based on at least a portion of the interference and channel estimations;
• and
• means for transmitting the channel state condition report.

A computer program product, comprising:

• a non-transitory computer-readable medium comprising code for:
• signaling, to a user equipment (UE), a plurality of resource patterns for a plurality of resource pattern groups to measure channel state conditions, wherein each resource pattern group includes a first set of resources corresponding to a first reference signal pattern for channel estimation on which a first transmission point in a serving cell transmits channel state information reference signals (CSI-RSs) and a second set of resources corresponding to a second reference signal pattern for interference estimation on which a second transmission point in the serving cell transmits the CSI-RSs and on which the first transmission point in the serving cell does not transit the CSI-RSs;
• receiving at least one channel state condition report from the UE based, at least in part, on one or more of the plurality of resource pattern groups;
• and
• scheduling one or more resources for use by the UE based on the at least one received channel state condition report.

A computer program product, comprising:

• a non-transitory computer-readable medium comprising code for:
• receiving, by a user equipment (UE), a plurality of resource patterns for a plurality of resource pattern groups, wherein each resource pattern group includes a first set of resources corresponding to a first reference signal pattern for channel estimation on which a first transmission point in a serving cell transmits channel state information reference signals (CSI-RSs) and a second set of resources corresponding to a second reference signal pattern for interference estimation on which a second transmission point in the serving cell transmits the CSI-RSs and on which the first transmission point in the serving cell does not transit the CSI-RSs;
• performing channel estimation for two or more of the plurality of resource pattern groups;
• performing interference estimation for the two or more of the plurality of resource pattern groups;
• generating a channel state condition report for at least one of the two or more of the plurality of resource pattern groups based on at least a portion of the interference and channel estimations;
• and
• transmitting the channel state condition report.

An apparatus for wireless communication, comprising:

• a memory;
• and
• at least one processor coupled to the memory, and configured to:
• signal, to a user equipment (UE), a plurality of resource patterns for a plurality of resource pattern groups to measure channel state conditions, wherein each resource pattern group includes a first set of resources corresponding to a first reference signal pattern for channel estimation on which a first transmission point in a serving cell transmits channel state information reference signals (CSI-RSs) and a second set of resources corresponding to a second reference signal pattern for interference estimation on which a second transmission point in the serving cell transmits the CSI-RSs and on which the first transmission point in the serving cell does not transit the CSI-RSs;
• receive at least one channel state condition report from the UE based, at least in part, on one or more of the plurality of resource pattern groups;
• and
• schedule one or more resources for use by the UE based on the at least one received channel state condition report.

An apparatus of wireless communications, comprising:

• a memory;
• and
• at least one processor coupled to the memory, and configured to:
• receive a plurality of resource patterns for a plurality of resource pattern groups, wherein each resource pattern group includes a first set of resources corresponding to a first reference signal pattern for channel estimation on which a first transmission point in a serving cell transmits channel state information reference signals (CSI-RSs) and a second set of resources corresponding to a second reference signal pattern for interference estimation on which a second transmission point in the serving cell transmits the CSI-RSs and on which the first transmission point in the serving cell does not transit the CSI-RSs;
• perform channel estimation for two or more of the plurality of resource pattern groups;
• perform interference estimation for the two or more of the plurality of resource pattern groups;
• generate a channel state condition report for at least one of the two or more of the plurality of resource pattern groups based on at least a portion of the interference and channel estimations;
• and
• transmit the channel state condition report.