Patent ID: 11943722
Assignee: APPLE INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 15:
16. A method, comprising:, by one or more nodes of a cellular network:
establishing communication with the wireless device, wherein a first node is comprised in a master cell group (MCG) of a wireless device, wherein a second node is comprised in a secondary cell group (SCG) of the wireless device, wherein at least the second node is comprised in the one or more nodes of the cellular network;
maintaining one or more timing advance (TA) parameters for receiving uplink communication from the wireless device using the second node;
providing a configuration to the wireless device for determining whether to reuse the one or more TA parameters after SCG activation, wherein the configuration indicates to attempt to reuse the one or more TA parameters;
at a first time, deactivating the SCG for the wireless device;
at a second time, activating the SCG for the wireless device, wherein the wireless device is configured to determine whether to reuse the one or more TA parameters based on the configuration; and
communicating with the wireless device using the second node.