Intra-frequency measurement of layer 3 based channel state information reference signals

An apparatus for wireless communication, comprising:

• a transmitter configured to transmit an indication based on a capability of the apparatus to simultaneously receive downlink data from a serving cell on one or more first resources and measure one or more channel state information (CSI) reference signals (CSI-RSs) from a target cell on one or more second resources, wherein the one or more first resources at least partially overlap the one or more second resources in a time domain and a frequency domain;
• one or more processors collectively configured to perform a CSI-RS measurement procedure, based on the capability;
• and
• one or more memories coupled to the one or more processors, wherein:
• the apparatus lacks the capability when the apparatus comprises a single processing engine configured to process the downlink data and measure the one or more CSI-RSs, the single processing engine being configured to use a first Fast Fourier Transform (FFT) window based on a first timing of the serving cell;
• and
• when the apparatus lacks the capability, in order to perform the CSI-RS measurement procedure, the one or more processors are collectively configured to:
• reconfigure the single processing engine to use a second FFT window based on a second timing of the target cell during a set of the one or more first resources;
• and
• use the reconfigured single processing engine to measure the one or more CSI-RSs on the one or more second resources during the set of the one or more first resources.

A method for wireless communication by a base station in a serving cell, the method comprising:

• receiving, from a user equipment (UE), a first indication of whether the UE has a capability to simultaneously receive downlink data from the serving cell on one or more first resources and measure one or more channel state information (CSI) reference signals (CSI-RSs) from a first target cell on one or more second resources, wherein the one or more first resources at least partially overlap the one or more second resources in a time domain and a frequency domain;
• determining one or more third resources for measuring CSI-RSs from a second target cell;
• determining a configuration for scheduling transmission of the downlink data on the one or more first resources, based in part on the first indication, a timing of the first target cell, and a timing of the second target cell;
• and
• transmitting a second indication of the configuration to the UE.

An apparatus for wireless communication, comprising:

• a receiver configured to receive, from a user equipment (UE), a first indication of whether the UE has a capability to simultaneously receive downlink data from a serving cell on one or more first resources and measure one or more channel state information (CSI) reference signals (CSI-RSs) from a first target cell on one or more second resources, wherein the one or more first resources at least partially overlap the one or more second resources in a time domain and a frequency domain;
• one or more processors collectively configured to:
• determine one or more third resources for measuring CSI-RSs from a second target cell;
• and
• determine a configuration for scheduling transmission of the downlink data on the one or more first resources, based in part on the first indication, a timing of the first target cell, and a timing of the second target cell;
• a transmitter configured to transmit a second indication of the configuration to the UE;
• and
• one or more memories coupled to the one or more processors.