Measurement and reporting of cross-link interference impact on downlink performance for full-duplex networks

An apparatus for wireless communication at a network node, comprising:

• at least one memory;
• and
• at least one processor coupled to the at least one memory, the at least one processor, individually or in any combination, is configured to:
• provide, for a user equipment (UE), a first indication to report a measurement of cross-link interference in a sub-band full duplex (SBFD) slot or symbol, the first indication indicating a first type or a second type of cross-link interference measurement to be performed;
• and
• responsive to the first indication indicating the first type of cross-link interference measurement, receive a second indication of a measurement of a received interference power in a first sub-band configured for uplink transmission of the SBFD slot or symbol during a physical downlink shared channel (PDSCH) or physical downlink control channel (PDCCH) reception at the UE in a second sub-band configured for downlink reception of the SBFD slot or symbol;
• responsive to the first indication indicating the second type of cross-link interference measurement, receive a second indication of a measurement of a log likelihood ratio (LLR) quality, for a plurality of resource blocks, based on a gap corresponding to a boundary between the first sub-band configured for the uplink transmission of the SBFD slot or symbol and the second sub-band configured for the downlink reception of the SBFD slot or symbol.

A method for wireless communication at a user equipment (UE), comprising:

• receiving a first indication to report a measurement of cross-link interference in a sub-band full duplex (SBFD) slot or symbol, the first indication indicating a first type or a second type of cross-link interference measurement to be performed;
• performing, responsive to the first indication indicating the first type of cross-link interference measurement, a measurement of a received interference power in a first sub-band configured for uplink transmission of the SBFD slot or symbol during a physical downlink shared channel (PDSCH) or physical downlink control channel (PDCCH) reception in a second sub-band configured for downlink reception of the SBFD slot or symbol;
• performing, responsive to the first indication indicating the second type of cross-link interference measurement, a measurement of a log likelihood ratio (LLR) quality, for a plurality of resource blocks, based on a gap corresponding to a boundary between the first sub-band configured for the uplink transmission of the SBFD slot or symbol and the second sub-band configured for the downlink reception of the SBFD slot or symbol;
• and
• transmitting a second indication of the measurement of at least one of the received interference power or the LLR quality.

A method for wireless communication at a network node, comprising:

• providing, for a user equipment (UE), a first indication to report a measurement of cross-link interference in a sub-band full duplex (SBFD) slot or symbol, the first indication indicating a first type or a second type of cross-link interference measurement to be performed;
• and
• responsive to the first indication indicating the first type of cross-link interference measurement, receiving a second indication of a measurement of a received interference power in a first sub-band configured for uplink transmission of the SBFD slot or symbol during a physical downlink shared channel (PDSCH) or physical downlink control channel (PDCCH) reception at the UE in a second sub-band configured for downlink reception of the SBFD slot or symbol;
• responsive to the first indication indicating the second type of cross-link interference measurement, receiving a second indication of a measurement of a log likelihood ratio (LLR) quality, for a plurality of resource blocks, based on a gap corresponding to a boundary between the first sub-band configured for the uplink transmission of the SBFD slot or symbol and the second sub-band configured for the downlink reception of the SBFD slot or symbol.