Frequency-selective single frequency network based on the modified type-II port selection codebook

A method of wireless communication performed by a base station, the method comprising:

• transmitting one or more channel quality reference signal resources to a served user equipment (UE) over each sector of a plurality of sectors within a receive area of the served UE, wherein each of the one or more channel quality reference signal resources indicates one or more antenna ports;
• transmitting a channel state information-reference signal (CSI-RS) resource configured with two or more antenna ports and beamformed according to the channel quality reference signal resources identified in a resource selection feedback message reported to the served UE, wherein a first antenna port of the two or more antenna ports is assigned to a first sector of the plurality of sectors within the receive area and a second antenna port of the two or more antenna ports is assigned to a second sector of the plurality of sectors within the receive area;
• and
• receiving a port selection feedback for each sector including one or more co-phasing coefficients and an amplitude indicator for each sector, wherein the amplitude indicator identifies:
• a wideband dynamic single frequency network (SFN) activation indicator and
• a subband dynamic SFN activation indicator.

An apparatus configured for wireless communication, the apparatus comprising:

• at least one processor;
• and
• a memory comprising instructions,
• wherein the at least one processor is configured to execute the instructions and cause the apparatus to:
• receive one or more channel quality reference signal resources from a serving base station over each sector of a plurality of sectors within a receive area of a UE, wherein each of the one or more channel quality reference signal resources indicates one or more antenna ports;
• receive a channel state information-reference signal (CSI-RS) resource configured with two or more antenna ports and beamformed according to the channel quality reference signal resources identified in a resource selection feedback message reported to the serving base station, wherein a first antenna port of the two or more antenna ports is assigned to a first sector of the plurality of sectors within the receive area and a second antenna port of the two or more antenna ports is assigned to a second sector of the plurality of sectors within the receive area;
• and
• report a port selection feedback for each sector including one or more co-phasing coefficients and an amplitude indicator for each sector, wherein the amplitude indicator identifies:
• a wideband dynamic single frequency network (SFN) activation indicator and
• a subband dynamic SFN activation indicator.

An apparatus configured for wireless communication, the apparatus comprising:

• at least one processor;
• and
• a memory comprising instructions,
• wherein the at least one processor is configured to execute the instructions and cause the apparatus to:
• initiate transmission of one or more channel quality reference signal resources to a served user equipment (UE) over each sector of a plurality of sectors within a receive area of the served UE, wherein each of the one or more channel quality reference signal resources indicates one or more antenna ports;
• initiate transmission of a channel state information-reference signal (CSI-RS) resource configured with two or more antenna ports and beamformed according to the channel quality reference signal resources identified in a resource selection feedback message reported to the serving UE, wherein a first antenna port of the two or more antenna ports is assigned to a first sector of the plurality of sectors within the receive area and a second antenna port of the two or more antenna ports is assigned to a second sector of the plurality of sectors within the receive area;
• and
• receive a port selection feedback for each sector including one or more co-phasing coefficients and an amplitude indicator for each sector, wherein the amplitude indicator identifies:
• a wideband dynamic single frequency network (SFN) activation indicator and
• a subband dynamic SFN activation indicator.