US Patent Application 18204770. APPARATUS, SYSTEM AND METHOD FOR DC (DUAL CONNECTIVITY) simplified abstract

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APPARATUS, SYSTEM AND METHOD FOR DC (DUAL CONNECTIVITY)

Organization Name

NEC Corporation


Inventor(s)

Xiaowei Zhang of Tokyo (JP)


Anand Raghawa Prasad of Tokyo (JP)


APPARATUS, SYSTEM AND METHOD FOR DC (DUAL CONNECTIVITY) - A simplified explanation of the abstract

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

Simplified Explanation

The abstract describes a process in which a mobile device (UE) receives information about potential new base stations (S'eNBs) from its current base station (MeNB). This allows the new base station (M'eNB) to determine if it needs to configure a new S'eNB before the handover takes place. There are two options for establishing secure communication between the UE and the new S'eNB. In one option, the MeNB generates a key (S'-KeNB) and sends it to the M'eNB. In the other option, the M'eNB derives the key (S'-KeNB) from a key (KeNB*) received from the MeNB. The M'eNB then sends the key (S'-KeNB) to the S'eNB. The abstract also mentions variations in the order and timing of actions during the handover procedure, such as SeNB Release, SeNB Addition, and Bearer Modification.


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.

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