View source for APPARATUS, SYSTEM AND METHOD FOR DC (DUAL CONNECTIVITY): abstract simplified (18204770)

*This abstract for appeared for patent application  number 18204770 Titled 'APPARATUS, SYSTEM AND METHOD FOR DC (DUAL CONNECTIVITY)'

==Simplified Explanation==

The abstract describes a process in which a User Equipment (UE) device receives information about potential new base stations (S'eNBs) from its current base station (MeNB). This information is then forwarded to a new base station (M'eNB) so that the new base station can determine if it needs to configure a new S'eNB and which one to configure. 

There are two options for establishing secure communication between the UE and the new S'eNB. In one option, the current base station derives a communication protection key (S'-KeNB) and sends it to the new base station. In the other option, the new base station derives the key from a received key (KeNB*) and sends it to the new S'eNB. 

The abstract also mentions variations in the procedure for releasing a current S'eNB, adding a new S'eNB, modifying bearer settings, and other steps during the handover process. The order and timing of these steps may vary.


==Original Abstract Submitted==

A UE () provides information on potential S′eNB(s). The information is forwarded from an MeNB (_) to an M′eNB (_) such that the M′eNB (_) can determine, before the handover happens, whether the M′eNB (_) will configure a new SeNB (S′eNB) and which S′eNB the M′eNB (_) will configure. In one of options, the MeNB (_) derives a key S′-KeNB for communication protection between the UE () and the S′eNB (_), and send the S′-KeNB to the M′eNB (_). In another option, the M′eNB (_) derives the S′-KeNB from a key KeNB* received from the MeNB (_). The M′eNB (_) sends the S′-KeNB to the S′eNB (_). Moreover, there are also provided several variations to perform SeNB Release, SeNB Addition, Bearer Modification and the like, in which the order and/or timing thereof can be different during the handover procedure.