Two reference signal beam reporting and identification
Various embodiments disclosed herein provide for a beam reporting and identification system that can use two different types of signals as reference signals when reporting on beam strengths. The user equipment device can send a unified report that reports on each of the different types of reference signals using a unified beam index. In an embodiment, the first type of reference signal can be a user equipment (UE) specific reference signal, such as a channel state information reference signal (CSI-RS), while the second type of signal used as a reference signal can be a synchronization signal (SS), received as an SS block. The unified index, where SS blocks are grouped into a number of groups, allows for the same number of bits to report on both synchronization signals and CSI-RS signals in the same report.
1. A user equipment device, comprising:
a processor; and
a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, comprising:
generating a beam index comprising a first group of signal measurements of a first type of reference signal, and a second group of signal measurements of a second type of reference signal;
transmitting a first report to a network node comprising a first signal measurement of a first beam of the first group of signal measurements in response to the first signal measurement of the first beam being determined to be above a defined signal strength; and
transmitting a second report to the network node comprising a second signal measurement of a second beam of the second group of signal measurements in response to each signal measurement of the first group of signal measurements being below the defined signal strength, wherein the second signal measurement of the second beam has the highest signal strength of the second group of signal measurements.
2. The user equipment device of claim 1 , wherein the first type of reference signal is a user equipment device specific channel state information reference signal.
3. The user equipment device of claim 1 , wherein the second type of reference signal is a synchronization signal.
4. The user equipment device of claim 1 , wherein the second type of reference signal comprises a synchronization signal block comprising a primary synchronization signal, a secondary synchronization signal, and a physical broadcast channel signal.
5. The user equipment device of claim 1 , wherein the operations further comprise:
updating the beam index in response to receiving new signal measurements of both the first type of reference signal and the second type of reference signal.
6. The user equipment device of claim 1 , wherein the first report and the second report have a same number of bits that report the first signal measurement of the first beam and the second signal measurement of the second beam.
7. The user equipment device of claim 1 , wherein the beam index comprises a group of synchronization signal blocks.
8. The user equipment device of claim 7 , wherein a number of synchronization signal blocks in the group of synchronization signal blocks is such that a uniform reporting is maintained between the first group of signal measurements and the second group of signal measurements.
9. The user equipment device of claim 1 , wherein the operations further comprise:
identifying a synchronization signal block associated with the second beam.
10. The user equipment device of claim 9 , wherein the second report comprises an indication of the synchronization signal block.
11. A method, comprising:
receiving, by a user equipment device comprising a processor, a first reference signal corresponding to a first type of reference signal that has an identifier associated with the user equipment device;
receiving, by the user equipment device, a second reference signal corresponding to a second type of reference signal that does not have an identifier associated with the user equipment device;
generating, by the user equipment device, a unified index of the first reference signal and the second reference signal; and
transmitting, by the user equipment device, a report indicating a beam with at least a defined signal strength based on the unified index.
12. The method of claim 11 , wherein the second reference signal comprises a synchronization signal block.
13. The method of claim 11 , further comprising:
in response to the first reference signal having a signal strength above a defined signal strength, selecting, by the user equipment device, the beam from the unified index that corresponds to the first reference signal.
14. The method of claim 11 , further comprising:
in response to the first reference signal having a signal strength below a defined signal strength, selecting, by the user equipment device, the beam from the unified index that corresponds to the second reference signal having a highest measured signal strength of synchronization signals received in a synchronization signal block.
15. The method of claim 11 , wherein the unified index comprises a group of synchronization signal blocks, and wherein a number of synchronization signal blocks in the group corresponds to a number of first reference signals in the unified index.
16. The method of claim 11 , wherein the transmitting the report comprises transmitting a same number of bits that report the first signal measurement of the first reference signal and the second signal measurement of the second reference signal.
17. The method of claim 11 , further comprising:
updating, by the user equipment device, the unified index in response to receiving a new signal measurement of the first type of reference signal or the second type of reference signal.
18. A machine-readable storage medium, comprising executable instructions that, when executed by a processor of a device, facilitate performance of operations, comprising:
receiving a first reference signal corresponding to a first type of reference signal that addresses a user equipment device;
receiving a second reference signal corresponding to a second type of reference signal that does not address a user equipment device;
creating a unified beam index of the first reference signal and the second reference signal; and
reporting on a beam with at least a defined signal strength based on the unified beam index.
19. The machine-readable storage medium of claim 18 , wherein the operations further comprise
in response to the first reference signal having a signal strength above a predetermined signal strength, reporting on the beam from the unified beam index that corresponds to the first reference signal.
20. The machine-readable storage medium of claim 18 , wherein the operations further comprise
in response to the first reference signal having a signal strength below a predetermined signal strength, reporting on the beam from the unified beam index that corresponds to the second reference signal having a highest measured signal strength of synchronization signals received in a synchronization signal block.