Energy-efficient communications in systems with shared radio units

An apparatus for operating a radio unit (RU) shared by multiple distributed units (DUs) of a radio access network (RAN) the apparatus comprising:

• one or more computing devices, the one or more computing devices being configured to transmit a modified synchronization signal block (SSB),
• wherein the modified SSB includes a first SSB and a least a second SSB different from the first SSB,
• wherein the first SSB includes time and frequency synchronization information for the multiple DUs for sharing the RU, and wherein the second SSB includes access information specific to a corresponding DU of the multiple DUs sharing the RU.

A non-transitory computer readable medium for operating a radio unit (RU) shared by multiple distributed units (DUs) of a radio access network (RAN), the non-transitory computer readable medium storing instructions that are executable by one or more computing devices, and upon such execution cause the one or more computing devices to perform operations comprising transmitting a modified synchronization signal block (SSB),

• wherein the modified SSB includes a first SSB and at least a second SSB different from the first SSB,
• wherein the first SSB includes time and frequency synchronization information for the multiple DUs for sharing the RU, and
• wherein the second SSB includes access information specific to a corresponding DU of the multiple DUs sharing the RU.

18-34. (canceled)