Method and network node for determining channel state information in an upcoming time slot

A method in a first node to adapt a downlink transmission from the first node to a first user equipment (UE), based in part on predictions of interference from surrounding cells including a second node, where the first node, the second node, and the UE are part of a communication system, the method comprising:

• configuring, by the first node, the first UE to report Channel State Information (CSI) and information about interference from the second node;
• receiving, from the first UE, the reported CSI and information about interference from the second node;
• predicting channel variations based on the reported information about interference from the second node;
• predicting a resulting signal-to-interference-and-noise-ratio (SINR) based on the reported CSI from the second node;
• and
• adapting the downlink transmission to the first UE taking the resulting SINR into account.

A method in a first node to adapt an uplink transmission from a first user equipment (UE) to the first node, based in part on predictions of interference from surrounding cells including a second node, where the first node, the second node, and the UE are part of a communication system, the method comprising:

• configuring, by the first node, the first UE to report Sounding Reference Symbols (SRS);
• receiving, from the first UE, the reported SRS;
• receiving, from the second node, information about an SRS configuration of the second node and a power control configuration for a second UE served by the second node;
• obtaining information about interference caused by the second UE served by the second node based on the received SRS configuration from the second node;
• predicting channel variations based on the received SRS configuration from the second UE;
• predicting a resulting signal-to-interference-and-noise-ratio (SINR) based in part on the reported SRS from the first UE;
• scheduling the uplink transmission from the first user equipment taking the resulting SINR into account;
• and
• receiving the uplink transmission from the first UE.

A first node configured to adapt a downlink transmission from the first node to a first user equipment (UE), based in part on predictions of interference from surrounding cells including a second node, where the first node, the second node, and the UE are part of a communication system, the first node further configured to:

• configure the first UE to report Channel State Information (CSI) and information about interference from the second node;
• receive, from the first UE, the reported CSI and information about interference from the second node;
• predict channel variations based on the reported information about interference from the second node;
• predict a resulting signal-to-interference-and-noise-ratio (SINR) based on the reported CSI from the second node;
• and
• adapt the downlink transmission to the first UE taking the resulting SINR into account.

A first node configured to adapt an uplink transmission from a first user equipment (UE) to the first node, based in part on predictions of interference from surrounding cells including a second node, where the first node, the second node, and the UE are part of a communication system, the first node further configured to:

• configure the first UE to report Sounding Reference Symbols (SRS);
• receive, from the first UE, the reported SRS;
• receive, from the second node, information about an SRS configuration of the second node and a power control configuration for a second UE served by the second node;
• obtain information about interference caused by the second UE served by the second node based on the received SRS configuration from the second node;
• predict channel variations based on the received SRS configuration from the second UE;
• predict a resulting signal-to-interference-and-noise-ratio (SINR) based in part on the reported SRS from the first UE;
• schedule the uplink transmission from the first user equipment taking the resulting SINR into account;
• and
• receive the uplink transmission from the first UE.