Layer 1 and layer 3 measurement coordination
A user equipment (UE) may be configured to perform layer 1 (L1) measurement procedures and layer 3 (L3) measurement procedures. The UE configures a channel state information-reference signal (CSI-RS) layer 3 (L3) measurement window, identifies a collision between a layer 1 (L1) measurement operation and a L3 measurement operation and omits at least one L1 measurement in response to identifying the collision.
1 . An apparatus comprising processing circuitry configured to:
determine a channel state information-reference signal (CSI-RS) layer 3 (L3) measurement window, wherein a starting point of the CSI-RS L3 measurement window is a slot boundary of a serving cell in which a first configured CSI-RS resource of the serving cell is located; and
process CSI-RS L3 measurements during the CSI-RS L3 measurement window.
2 . The apparatus of claim 1 , wherein the CSI-RS L3 measurement window has a predetermined fixed duration.
3 . The apparatus of claim 1 , wherein the CSI-RS L3 measurement window has a variable duration, wherein the variable duration is not greater than a predetermined maximum duration.
4 . The apparatus of claim 1 , wherein the CSI-RS L3 measurements comprise intra-frequency measurements.
5 . The apparatus of claim 1 , wherein the processing circuitry is further configured to:
process, based on signals received from a network, a measurement object (MO) identifying the serving cell.
6 . The apparatus of claim 5 , wherein the MO identifies a plurality of serving cells and the serving cell is one of the plurality of serving cells in the MO having a L3 CSI-RS resource with a smallest offset.
7 . The apparatus of claim 1 , wherein the CSI-RS L3 measurement window comprises two CSI-RS L3 measurement windows.
8 . The apparatus of claim 7 , wherein the starting point of a first CSI-RS L3 measurement window is the slot boundary of the serving cell in which the first configured CSI-RS resource of the serving cell is located and a starting point of a second CSI-RS L3 measurement window is determined based on the starting point of the first CSI-RS L3 measurement window.
9 . The apparatus of claim 8 , wherein the starting point of a second CSI-RS L3 measurement window is an offset of half of the CSI-RS periodicity in slots in relation to the starting point of the first window.
10 . A user equipment (UE), comprising:
a transceiver configured to communicate with a network; and
a processor communicatively coupled to the transceiver and configured to:
determine a channel state information-reference signal (CSI-RS) layer 3 (L3) measurement window, wherein a starting point of the CSI-RS L3 measurement window is a slot boundary of a serving cell in which a first configured CSI-RS resource of the serving cell is located; and
process CSI-RS L3 measurements during the CSI-RS L3 measurement window.
11 . The UE of claim 10 , wherein the CSI-RS L3 measurement window has a predetermined fixed duration.
12 . The UE of claim 10 , wherein the CSI-RS L3 measurement window has a variable duration, wherein the variable duration is not greater than a predetermined maximum duration.
13 . The UE of claim 10 , wherein the CSI-RS L3 measurements comprise intra-frequency measurements.
14 . The UE of claim 10 , wherein the processor is further configured to:
process, based on signals received from the network, a measurement object (MO) identifying the serving cell.
15 . The UE of claim 14 , wherein the MO identifies a plurality of serving cells and the serving cell is one of the plurality of serving cells in the MO having a L3 CSI-RS resource with a smallest offset.
16 . The UE of claim 10 , wherein the CSI-RS L3 measurement window comprises two CSI-RS L3 measurement windows.
17 . The UE of claim 16 , wherein the starting point of a first CSI-RS L3 measurement window is the slot boundary of the serving cell in which the first configured CSI-RS resource of the serving cell is located and a starting point of a second CSI-RS L3 measurement window is determined based on the starting point of the first window.
18 . The UE of claim 17 , wherein the starting point of a second CSI-RS L3 measurement window is an offset of half of the CSI-RS periodicity in slots in relation to the starting point of the first window.