User equipment-centric inter-cell mobility

An apparatus, comprising:

• a processor;
• and
• a non-transitory computer readable storage medium storing programming for execution by the processor, the programming including instructions to:
• receive, from a first base station, an indication signal for indicating to the apparatus a communication resource for a second reference signal associated with a second base station, wherein the communication resource for the second reference signal is comprised in a higher-layer configuration from the first base station to the apparatus, and the higher-layer configuration further comprises a communication resource for a first reference signal associated with the first base station;
• in response to the indication signal, communicate, with the second base station, a data transmission or a control signal transmission using a respective data channel or control channel, the data channel or control channel associated with the communication resource for the second reference signal,
• wherein the indication signal comprises a Medium Access Control-Control Element (MAC-CE) indication of the communication resource for the second reference signal,
• wherein the MAC-CE indication comprises a MAC-CE command with a Transmission Configuration Indicator (TCI) indication indicating a beam management resource set and a Quasi-Colocation (QCL) assumption to use for resources in the beam management resource set.

A non-transitory computer readable storage medium storing programming for execution by a processor, the programming including instructions to:

• receive, from a first base station, an indication signal for indicating a communication resource for a second reference signal associated with a second base station, wherein the communication resource for the second reference signal is comprised in a higher-layer configuration from the first base station, and the higher-layer configuration further comprises a communication resource for a first reference signal associated with the first base station;
• in response to the indication signal, communicate with the second base station, a data transmission or a control signal transmission using a respective data channel or control channel, the data channel or control channel associated with the communication resource for the second reference signal,
• wherein the indication signal comprises a Medium Access Control-Control Element (MAC-CE) indication of the communication resource for the second reference signal,
• wherein the MAC-CE indication comprises a MAC-CE command with a Transmission Configuration Indicator (TCI) indication indicating a beam management resource set and a Quasi-Colocation (QCL) assumption to use for resources in the beam management resource set.