Patent ID: 11968053
Assignee: NOKIA TECHNOLOGIES OY
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. A method comprising:
determining a first user equipment is part of a group of redundant user equipments including the first user equipment and a second user equipment, each of the first user equipment and the second user equipment configured with a protocol data unit session to carry alternately redundant time sensitive data streams, wherein a first packet of data is transmitted over a first data path, and a second packet of data is transmitted over a second data path;
receiving, from a token coordination function, a token response, wherein the token response is in response to an explicit request from a network node, and wherein the network node determines whether the token is present at the network node prior to sending the explicit request, wherein if the token for the redundant user equipments is not currently checked out to a first base station, handovers are frozen at the first base station, and wherein if the token for the redundant user equipments is currently checked out to a second base station, the token coordination function waits for the second base station to return the token, and includes in the token response, that the token is not available;
allowing an action, when the token is received in the token response; and
inhibiting the action, when the token is not included in the token response and/or the token is expired.