Method and apparatus for beam management for multi-stream transmission
Methods and apparatuses for measurement information reporting. A method of a user equipment (UE) includes method receiving a configuration for a set of resources comprising non-zero-power channel state information reference signal (NZP CSI-RS) resources or synchronization signal and physical broadcast channel (SS/PBCH) block resources and receiving NZP CSI-RS in the NZP CSI-RS resources or SS/PBCH blocks in the SS/PBCH block resources from the set of resources. The method includes measuring signal-to-interference and noise ratio (SINR) values based on the NZP CSI-RS or the SS/PBCH blocks; and transmitting, for a subset of resources from the set of resources, a largest of the SINR values, differential SINR values relative to the largest SINR value, and NZP CSI-RS resource indexes (CRIs) or SS/PBCH block indexes for at least some of the NZP CSI-RS resources or the SS/PBCH blocks resources from the subset of resources.
1. A method comprising:
receiving a configuration for a set of resources comprising non-zero-power channel state information reference signal (NZP CSI-RS) resources or synchronization signal and physical broadcast channel (SS/PBCH) block resources, and
receiving NZP CSI-RS in the NZP CSI-RS resources or SS/PBCH blocks in the SS/PBCH block resources from the set of resources;
measuring signal-to-interference and noise ratio (SINR) values based on the NZP CSI-RS or the SS/PBCH blocks; and
transmitting, for a subset of resources from the set of resources:
a largest of the SINR values,
differential SINR values relative to the largest SINR value, and
NZP CSI-RS resource indexes (CRIs) or SS/PBCH block indexes for at least some of the NZP CSI-RS resources or the SS/PBCH blocks resources from the subset of resources.
2. The method of claim 1 , wherein:
the largest SINR value has granularity of half a decibel (dB); and
the differential SINR values have granularities of one decibel.
3. The method of claim 1 , wherein:
the largest SINR value is represented by a first number of bits;
each of the differential SINR values is represented by a second number of bits; and
the first number of bits is larger than the second number of bits.
4. The method of claim 1 , further comprising:
receiving a configuration for a number N of elements in the subset of resources.
5. The method of claim 4 , wherein the differential SINR values correspond to a largest N−1 SINRs that are smaller than or equal to the largest SINR.
6. The method of claim 1 , wherein at least two of the NZP CSI-RS resources or the SS/PBCH blocks resources have different quasi-collocation properties.
7. The method of claim 1 , further comprising:
receiving a configuration for a set of channel state information interference measurement (CSI-IM) resources, wherein the set of CSI-IM resources has a same number of elements as the set of resources, and
receiving signals in the set of CSI-IM resources;
measuring interference values based on the signals; and
transmitting an interference value for each element in the subset of resources from the set of resources.
8. A user equipment (UE) comprising:
a transceiver configured to:
receive a configuration for a set of resources comprising non-zero-power channel state information reference signal (NZP CSI-RS) resources or synchronization signal and physical broadcast channel (SS/PBCH) block resources, and
receive NZP CSI-RS in the NZP CSI-RS resources or the SS/PBCH blocks in corresponding SS/PBCH block resources from the set of resources; and
a processor operably connected to the transceiver, the processor configured to measure signal-to-interference and noise ratio (SINR) values based on the NZP CSI-RS or the SS/PBCH blocks; and
wherein the transceiver is further configured to transmit, for a subset of resources from the set of resources:
a largest of the SINR values,
differential SINR values relative to the largest SINR value, and
NZP CSI-RS resource indexes (CRIs) or SS/PBCH block indexes for at least some of the NZP CSI-RS resources or the SS/PBCH blocks resources from the subset of resources.
9. The UE of claim 8 , wherein:
the largest SINR value has granularity of half a decibel (dB); and
the differential SINR values have granularities of one decibel.
10. The UE of claim 8 , wherein:
the largest SINR value is represented by a first number of bits;
each of the differential SINR values is represented by a second number of bits; and
the first number of bits is larger than the second number of bits.
11. The UE of claim 8 , wherein the receiver is further configured to receive a configuration for a number N of elements in the subset of resources.
12. The UE of claim 11 , wherein the differential SINR values correspond to a largest N−1 SINRs that are smaller than or equal to the largest SINR.
13. The UE of claim 8 , wherein at least two of the NZP CSI-RS resources or the SS/PBCH blocks resources have different quasi-collocation properties.
14. The UE of claim 8 , wherein:
the transceiver is further configured to receive:
a configuration for a set of channel state information interference measurement (CSI-IM) resources, wherein the set of CSI-IM resources has a same number of elements as the set of resources, and
signals in the set of CSI-IM resources;
the processor is further configured to measure interference values based on the signals; and
the transceiver is further configured to transmit an interference value for each element in the subset of resources from the set of resources.
15. A base station comprising:
a transceiver configured to:
transmit a configuration for a set of resources comprising non-zero-power channel state information reference signal (NZP CSI-RS) resources or synchronization signal and physical broadcast channel (SS/PBCH) block resources, and
transmit NZP CSI-RS in the NZP CSI-RS resources or SS/PBCH blocks in the SS/PBCH block resources from the set of resources; and
receive, for a subset of resources from the set of resources:
a largest of signal-to-interference and noise ratio (SINR) values corresponding to the NZP CSI-RS or the SS/PBCH blocks,
differential SINR values relative to the largest SINR value, and
NZP CSI-RS resource indexes (CRIs) or SS/PBCH block indexes for at least some of the NZP CSI-RS resources or the SS/PBCH blocks resources from the subset of resources.
16. The base station of claim 15 , wherein:
the largest SINR value has granularity of half a decibel (dB); and
the differential SINR values have granularities of one decibel.
17. The base station of claim 15 , wherein:
the largest SINR value is represented by a first number of bits;
each of the differential SINR values is represented by a second number of bits; and
the first number of bits is larger than the second number of bits.
18. The base station of claim 15 , wherein the transmitter transceiver is further configured to transmit a configuration for a number N of elements in the subset of resources.
19. The base station of claim 18 , wherein the differential SINR values correspond to a largest N−1 SINRs that are smaller than or equal to the largest SINR.
20. The base station of claim 15 , wherein at least two of the NZP CSI-RS resources or the SS/PBCH blocks resources have different quasi-collocation properties.