/Source Node Identification During Mobility
Abstract

A first distributed unit (DU) of a first base station receives, from a first central unit (CU) of the first base station, a request message for a wireless device. The request message comprises an identifier of a second DU of a second base station and a global gNodeB (gNB) identifier of the second base station. The first CU sends a response message comprising a random access (RACH) configuration for an early timing advance (ETA) procedure for a layer 1 and/or layer 2 triggered mobility (LTM).

Full Text

What is claimed is:

A first distributed unit (DU) of a first base station receives, from a first central unit (CU) of the first base station, a request message for a wireless device. The request message comprises an identifier of a second DU of a second base station and a global gNodeB (gNB) identifier of the second base station. The first CU sends a response message comprising a random access (RACH) configuration for an early timing advance (ETA) procedure for a layer 1 and/or layer 2 triggered mobility (LTM).
Timeline
Filed
03/26/2026
Published
07/30/2026
Granted
Not Available
IPC Codes(5)
H04W 36/04:Reselecting a cell layer in multi-layered cells
H04W 36/00:Handoff or reselecting arrangements
H04W 36/24:Reselection being triggered by specific parameters