System and method for reporting signal quality information
A wireless user equipment (UE) may employ any of various mechanisms for reporting signal quality measurements to a wireless network. The UE may impose a time delay between measurement and reporting, based on a delay parameter K. The UE may average measurements obtained at different measurement instances. The UE may employ any of various schemes for prioritizing transmission of one type of report over another, when temporal collisions occur between different types of report. The UE may employ a differential report that includes a state for indicating that a beam is not workable. The UE may employ a beam index that includes a state for indicating an invalid beam. A base station may receive a signal quality report and determine workability of a beam, e.g., by triggering a report of channel state information.
1. An apparatus comprising:
at least one processor configured to cause a user equipment (UE) to:
perform a measurement for a beam in a first time interval, wherein the measurement is based on a channel measurement resource (CMR) and an interference measurement resource (IMR);
determine layer 1 signal to interference-and-noise ratio (L1 SINR) information based at least on the measurement;
transmit the L1-SINR information to a base station in a second time interval,
wherein if a measurement restriction is configured for the CMR, the UE performs the measurement corresponding to signal power and based on a most recent instance of the CMR;
wherein if a measurement restriction is not configured for the CMR, the UE performs the measurement corresponding to signal power and based on one or more instances of the CMR prior to transmitting the L1-SINR information;
wherein if a measurement restriction is configured for the IMR, the UE performs the measurement corresponding to at least one of interference and noise and based on a most recent instance of the IMR, and
wherein if a measurement restriction is not configured for the IMR, the UE performs the measurement corresponding to at least one of interference and noise and based on one or more instances of the IMR prior to transmitting the L1-SINR information.
2. The apparatus of claim 1 , wherein an amount of delay between the first time interval and the second time interval is controlled by a delay value K, and wherein the at least one processor is further configured to cause the UE to:
prior to said performing the measurement, receive a configuration message indicating the delay value K.
3. The apparatus of claim 1 , wherein an amount of delay between the first time interval and the second time interval is controlled by a delay value K, and wherein the at least one processor is further configured to cause the UE to:
transmit a signal indicating the delay value K to the base station.
4. The apparatus of claim 1 , wherein an amount of delay between the first time interval and the second time interval is controlled by a delay value K, and wherein the delay value K is predefined.
5. The apparatus of claim 1 , wherein an amount of delay between the first time interval and the second time interval is controlled by a delay value K, and wherein the delay value K corresponds to (a) a subcarrier spacing of a bandwidth part carrying downlink resources used to perform the measurement, or (b) a subcarrier spacing of a bandwidth part used to transmit said beam quality information.
6. The apparatus of claim 1 , wherein the beam is a transmit beam associated with a downlink signal, and wherein the CMR and IMR are in the downlink signal.
7. The apparatus of claim 1 , wherein the beam is a receive beam associated with a downlink signal, and wherein CMR and IMR are in the downlink signal.
8. A wireless device, comprising:
wireless communication circuitry; and
at least one processor coupled to the wireless communication circuitry and configured to cause the wireless device to:
perform a measurement for a beam in a first time interval, wherein the measurement is based on a channel measurement resource (CMR) and an interference measurement resource (IMR);
determine layer 1 signal to interference-and-noise ratio (L1-SINR) information based at least on the measurement;
transmit the L1-SINR information to a base station in a second time interval,
wherein if a measurement restriction is configured for the CMR, the UE performs the measurement corresponding to signal power and based on a most recent instance of the CMR,
wherein if a measurement restriction is not configured for the CMR, the UE performs the measurement corresponding to signal power and based on one or more instances of the CMR prior to transmitting the L1-SINR information,
wherein if a measurement restriction is configured for the IMR, the UE performs the measurement corresponding to at least one of interference and noise and based on a most recent instance of the IMR, and
wherein if a measurement restriction is not configured for the IMR, the UE performs the measurement corresponding to at least one of interference and noise and based on one or more instances of the IMR prior to transmitting the L1-SINR information.
9. The wireless device of claim 8 , wherein an amount of delay between the first time interval and the second time interval is controlled by a delay value K, and wherein the at least one processor is further configured to cause the wireless device to:
prior to said performing the measurement, receive a configuration message indicating the delay value K.
10. The wireless device of claim 8 , wherein an amount of delay between the first time interval and the second time interval is controlled by a delay value K, and wherein the at least one processor is further configured to cause the wireless device to:
transmit a signal indicating the delay value K to the base station.
11. The wireless device of claim 8 , wherein an amount of delay between the first time interval and the second time interval is controlled by a delay value K, and wherein the delay value K is predefined.
12. The wireless device of claim 8 , wherein an amount of delay between the first time interval and the second time interval is controlled by a delay value K, and wherein the delay value K corresponds to (a) a subcarrier spacing of a bandwidth part carrying downlink resources used to perform the measurement, or (b) a subcarrier spacing of a bandwidth part used to transmit said beam quality information.
13. The wireless device of claim 8 , wherein the beam is a transmit beam associated with a downlink signal, and wherein the CMR and IMR are in the downlink signal.
14. The wireless device of claim 8 , wherein the beam is a receive beam associated with a downlink signal, and wherein the CMR and IMR are in the downlink signal.
15. The wireless device of claim 8 , wherein the first time interval and the second time interval are time slots.
16. A non-transitory memory medium storing program instructions, wherein the program instructions, when executed by a processor, cause a wireless user equipment (UE) device to perform operations comprising:
performing a measurement for a beam in a first time interval, wherein the measurement is based on a channel measurement resource (CMR) and an interference measurement resource (IMR);
determining layer 1 signal to interference-and-noise ratio (L1-SINR) information based at least on the measurement;
transmit the L1-SINR beam quality information to a base station in a second time interval,
wherein if a measurement restriction is configured for the CMR, the UE performs the measurement corresponding to signal power and based on a most recent instance of the CMR,
wherein if a measurement restriction is not configured for the CMR, the UE performs the measurement corresponding to signal power and based on one or more instances of the CMR prior to transmit the L1-SINR information,
wherein if a measurement restriction is configured for the IMR, the UE performs the measurement corresponding to at least one of interference and noise and based on a most recent instance of the IMR, and
wherein if a measurement restriction is not configured for the IMR, the UE performs the measurement corresponding to at least one of interference and noise and based on one or more instances of the IMR prior to transmit the L1-SINR information.
17. The non-transitory memory medium of claim 16 , wherein an amount of delay between the first time interval and the second time interval is controlled by a delay value K, and wherein the operations further comprise:
prior to said performing the measurement, receiving a configuration message indicating the delay value K.
18. The non-transitory memory medium of claim 16 , wherein an amount of delay between the first time interval and the second time interval is controlled by a delay value K, and wherein the operations further comprise:
transmitting a signal indicating the delay value K to the base station.
19. The non-transitory memory medium of claim 16 , wherein an amount of delay between the first time interval and the second time interval is controlled by a delay value K, and wherein the delay value K corresponds to (a) a subcarrier spacing of a bandwidth part carrying downlink resources used to perform the measurement, or (b) a subcarrier spacing of a bandwidth part used to transmit said beam quality information.
20. The non-transitory memory medium of claim 16 , wherein the beam is a transmit beam associated with a downlink signal, and wherein the CMR and IMR are in the downlink signal.