Channel Quality Indicator Feedback

A method performed by a wireless device for channel state information, CSI, reporting, in a wireless communication system, the method comprising

• receiving, from a network node or another wireless device, a channel state information, CSI, report configuration,
• performing measurement(s) of one or more downlink, DL, reference signal resource(s) provided by the CSI report configuration,
• determining an encoded channel state information, CSI, using at least the measurement(s) of the one or more DL RS(s),
• determining a first CQI value using the encoded CSI,
• determining a reference CSI using the measurement(s) of the one or more DL RS(s),
• determining a second CQI value using the reference CSI,
• reporting or transmitting to a network node or another wireless device, a CSI report comprising information related to the first CQI value and the second CQI value.

A method performed by a wireless device for channel state information, CSI, reporting, in a wireless communication system, the method comprising

• receiving, from a network node or another wireless device, a channel state information, CSI, report configuration,
• performing measurement(s) of one or more downlink reference signal resource(s) provided by the CSI report configuration,
• determining an encoded channel state information, CSI, using at least the measurement(s) from one or more DL RS(s),
• determining at least one channel quality index/index, CQI, value using the value(s) of at least one CQI correction parameter,
• transmitting to the network node or another wireless device, a CSI report comprising said at least one CQI value.

A method performed by a network node for receiving, from a wireless device, a channel state information, CSI, report in a wireless communication system, the method comprising:

• transmitting, to the wireless device, a CSI report configuration;
• for enabling the wireless device to:
• performing measurement(s) of one or more downlink reference signal resource(s) provided by the CSI report configuration,
• determining an encoded channel state information, CSI, using at least said measurement(s),
• determining a decoded CSI corresponding to said encoded CSI,
• determining at least one CQI value calculated using said decoded CSI, and
• generate a CSI report for transmission to the network node comprising said at least one CQI value.
• receiving, from the wireless device an uplink control information (UCI) including the CSI report over an uplink, UL, channel.

A method performed by a network node for receiving, from a wireless device, a channel state information, CSI, report in a wireless communication system, the method comprising:

• transmitting, to the wireless device, a CSI report configuration;
• for enabling the wireless device to:
• performing measurement(s) of one or more downlink, DL, reference signal resource(s) provided by the CSI report configuration,
• determining an encoded channel state information, CSI, using at least the measurement(s) of the one or more DL RS(s),
• determining a first CQI value using the encoded CSI,
• determining a reference CSI using the measurement(s) of the one or more DL RS(s),
• determining a second CQI value using the reference CSI,
• generate a CSI report for transmission to the network node, the CSI report comprising information related to the first CQI value and the second CQI value, and
• receiving, from the wireless device an uplink control information (UCI) including the CSI report over an uplink, UL, channel.

A method performed by a network node for receiving, from a wireless device, a channel state information, CSI, report in a wireless communication system, the method comprising:

• transmitting, to the wireless device, a CSI report configuration;
• for enabling the wireless device to:
• performing measurement(s) of one or more downlink reference signal resource(s) provided by the CSI report configuration,
• determining an encoded channel state information, CSI, using at least the measurement(s) from one or more DL RS(s),
• determining at least one channel quality index/index, CQI, value using the value(s) of at least one CQI correction parameter,
• generate a CSI report for transmission to the network node, the CSI report comprising said at least one CQI value, and
• receiving, from the wireless device an uplink control information (UCI) including the CSI report over an uplink, UL, channel.