Measurement configuration management on L1 mobility
A method of operating a user equipment, UE, configured with a plurality of transmission configurations for lower layer mobility and associated with one or more cells, each cell associated with one or more physical cell identities, PCIs, in a wireless communication network is provided. The method includes receiving a lower layer signaling that includes an indication of a change of transmission configuration from a first transmission configuration to a second transmission configuration from the plurality of transmission configurations, and in response to receiving the lower layer signaling, performing the change of transmission configuration and performing an action related to a measurement configuration. The action includes one of performing an update to at least one element in the measurement configuration based on the second transmission configuration, and applying a stored measurement configuration associated with the second transmission configuration.
1 . A method of operating a user equipment, UE, configured with a plurality of transmission configurations for lower layer mobility and associated with one or more cells, each cell associated with one or more physical cell identities, PCIs, in a wireless communication network, the method comprising:
receiving a lower layer signaling that comprises an indication of a change of transmission configuration from a first transmission configuration to a second transmission configuration from the plurality of transmission configurations; and
in response to receiving the lower layer signaling, performing the change of transmission configuration and performing an action related to a measurement configuration, wherein the action comprises applying a stored measurement configuration associated with the second transmission configuration, wherein the stored measurement configuration is indicated by a MeasConfig Information Element (IE).
2 . The method of claim 1 , wherein the plurality of transmission configurations comprise a plurality of transmission configuration indicator, TCI, state configurations, wherein each of the TCI state configurations comprises a quasi-co-location, QCL, configuration.
3 . The method of claim 1 , wherein the lower layer signaling further comprises:
an indication of one or more transmission configuration indicator, TCI, state configurations to be activated, wherein each of the one or more TCI state configurations comprises a quasi-co-location, QCL, configuration.
4 . The method of claim 1 , wherein the indication of change of transmission configuration from the first transmission configuration to the second transmission configuration comprises:
an indication of a transmission configuration indicator, TCI, state configuration among a plurality of TCI state configurations; and the method further comprises:
determining that a quasi-co-location, QCL, configuration is associated to a PCI which is different from a current PCI.
5 . The method of claim 4 , wherein the action is performed in response to determining that the QCL configuration is associated to the PCI which is different from the current PCI.
6 . The method of claim 2 , wherein the QCL configuration comprises a reference signal configuration.
7 . The method of claim 6 , wherein the reference signal configuration comprises a synchronization signal block, SSB, index or a channel state information reference signal, CSI-RS, index.
8 . The method of claim 4 , wherein the lower layer signaling comprises a medium access control, MAC, control element, CE.
9 . The method of claim 1 , wherein applying the stored measurement configuration comprises applying the stored measurement configuration based on transmission configuration indicator, TCI, state information included in the lower layer signaling.
10 . The method of claim 1 , wherein the stored measurement configuration comprises a delta measurement configuration that indicates differences with respect to another measurement configuration.
11 . The method of claim 10 , wherein the delta signaled measurement configuration is a delta configuration that indicates differences with respect to an initial measurement configuration.
12 . The method of claim 1 , wherein the transmission configuration comprises a mobility configuration for L1/L2 based inter-cell mobility.