Method and apparatus for beam management for inter-cell mobility
A method for operating a user equipment (UE) comprises receiving, from a serving cell, configuration information for measuring K resource reference signals (RSs) and reporting a beam report, measuring the K resource RSs, determining the beam report based on a metric, where the beam report includes an indicator indicating at least one of the K resource RSs, and transmitting the determined beam report, wherein 1≤K, wherein the K resource RSs comprises a first subset and a second subset, at least one resource RS in the first subset is transmitted from a serving cell in a set of serving cells and at least one resource RS in the second subset is transmitted from a non-serving cell in a set of non-serving cells.
1. A user equipment (UE) comprising:
a transceiver configured to:
receive a set of transmission configuration indicator (TCI) states, wherein each TCI state refers to at least one quasi co-location (QCL) information and is associated with a downlink (DL) transmission, wherein the at least one QCL information indicates a resource-ID, a cell-ID, and a QCL-type for at least one resource RS, wherein the resource-ID is an identifier (ID) of the resource RS, the cell-ID is an ID of a cell the resource RS is transmitted from, and the QCL-type is a type of a QCL property associated with the resource RS; and
receive a TCI state from the set of TCI states; and
a processor coupled to the transceiver, the processor configured to:
decode the TCI state; and
apply the TCI state to receive the DL transmission.
2. The UE of claim 1 , wherein:
the transceiver is further configured to receive configuration information for measuring K resource reference signals (RSs) and reporting a beam report,
the processor is further configured to:
measure the K resource RSs; and
determine the beam report based on a metric, where the beam report includes an indicator indicating at least one of the K resource RSs,
the transceiver is further configured to transmit the determined beam report,
1≤K, and
the K resource RSs comprises a first subset and a second subset, at least one resource RS in the first subset is transmitted from a serving cell in a set of serving cells and at least one resource RS in the second subset is transmitted from a non-serving cell in a set of non-serving cells.
3. The UE of claim 2 , wherein for each resource RS, the transceiver is further configured to receive an information about cells comprising the set of serving and the set of non-serving cells.
4. The UE of claim 3 , wherein the information about the cells includes a physical cell identifier (PCID).
5. The UE of claim 1 , wherein the QCL-type corresponds to TypeD for a spatial domain filter.
6. The UE of claim 1 , wherein each of the at least one QCL information includes an ID that indicates both the resource-ID and the cell-ID jointly.
7. The UE of claim 1 , wherein:
each of the at least one QCL information includes an ID that indicates the resource-ID, and the cell-ID is determined implicitly based on the included ID.
8. The UE of claim 1 , wherein the cell-ID corresponds to an ID of a serving cell or a non-serving cell.
9. The UE of claim 1 , wherein:
the transceiver is further configured to receive a plurality of QCL information, and
the at least one QCL information is from the plurality of QCL information.
10. A base station (BS) comprising:
a processor; and
a transceiver coupled to the processor, the transceiver configured to:
transmit a set of transmission configuration indicator (TCI) states, wherein each TCI state refers to at least one quasi co-location (QCL) information and is associated with a downlink (DL) transmission, wherein the at least one QCL information indicates a resource-ID, a cell-ID, and a QCL-type for at least one resource RS, wherein the resource-ID is an identifier (ID) of the resource RS, the cell-ID is an ID of a cell the resource RS is transmitted from, and the QCL-type is a type of a QCL property associated with the resource RS; and
transmit a TCI state from the set of TCI states.
11. The BS of claim 10 , wherein:
the transceiver is further configured to transmit configuration information for measuring K resource reference signals (RSs) and receiving a beam report, where the beam report includes an indicator indicating at least one of the K resource RSs,
1≤K, and
the K resource RSs comprises a first subset and a second subset, at least one resource RS in the first subset is transmitted from a serving cell in a set of serving cells and at least one resource RS in the second subset is transmitted from a non-serving cell in a set of non-serving cells.
12. The BS of claim 11 , wherein for each resource RS, the transceiver is further configured to transmit an information about cells comprising the set of serving and the set of non-serving cells.
13. The BS of claim 12 , wherein the information about the cells includes a physical cell identifier (PCID).
14. The BS of claim 10 , wherein the QCL-type corresponds to TypeD for a spatial domain filter.
15. The BS of claim 10 , wherein each of the at least one QCL information includes an ID that indicates both the resource-ID and the cell-ID jointly.
16. The BS of claim 10 , wherein:
each of the at least one QCL information includes an ID that indicates the resource-ID, and
the cell-ID is determined implicitly based on the included ID.
17. The BS of claim 10 , wherein the cell-ID corresponds to an ID of a serving cell or a non-serving cell.
18. The BS of claim 10 , wherein:
the transceiver is further configured to transmit a plurality of QCL information, and
the at least one QCL information is from the plurality of QCL information.
19. A method for operating a user equipment (UE), the method comprising:
receiving a set of transmission configuration indicator (TCI) states, wherein each TCI state refers to at least one quasi co-location (QCL) information and is associated with a downlink (DL) transmission, wherein the at least one QCL information indicates a resource-ID, a cell-ID, and a QCL-type for at least one resource RS, wherein the resource-ID is an identifier (ID) of the resource RS, the cell-ID is an ID of a cell the resource RS is transmitted from, and the QCL-type is a type of a QCL property associated with the resource RS;
receiving a TCI state from the set of TCI states;
decoding the TCI state; and
applying the TCI state to receive the DL transmission.
20. The method of claim 19 , further comprising:
receiving configuration information for measuring K resource reference signals (RSs) and reporting a beam report;
measuring the K resource RSs;
determining the beam report based on a metric, where the beam report includes an indicator indicating at least one of the K resource RSs; and
transmitting the determined beam report,
wherein 1≤K, and
wherein the K resource RSs comprises a first subset and a second subset, at least one resource RS in the first subset is transmitted from a serving cell in a set of serving cells and at least one resource RS in the second subset is transmitted from a non-serving cell in a set of non-serving cells.
21. The method of claim 20 , further comprising receiving an information about cells comprising the set of serving and the set of non-serving cells for each resource RS.
22. The method of claim 21 , wherein the information about the cells includes a physical cell identifier (PCID).
23. The method of claim 19 , wherein the cell-ID corresponds to an ID of a serving cell or a non-serving cell.
24. The method of claim 19 , further comprising receiving a plurality of QCL information, wherein the at least one QCL information is from the plurality of QCL information.