Invention Grant
- Patent Title: Apparatus and method for reporting system frame number (SFN) and subframe offset in dual connectivity (DC) enhancement
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Application No.: US16747087Application Date: 2020-01-20
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Publication No.: US10999842B2Publication Date: 2021-05-04
- Inventor: Rui Huang , Yang Tang
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Kowert, Hood, Munyon, Rankin & Goetzel, P.C.
- Main IPC: H04W76/28
- IPC: H04W76/28 ; H04W76/27 ; H04W52/28 ; H04W84/04 ; H04W76/15 ; H04W88/06 ; H04W72/04 ; H04W24/10 ; H04W56/00 ; H04L5/00

Abstract:
Embodiments of a user equipment (UE) for reporting of timing offset for dual connectivity enhancement are disclosed herein. The UE can include transceiver circuitry to connect to a master cell group via a master evolved node B (eNB) and a secondary cell group via a secondary eNB. Additionally, the UE can receive a first reference signal from the master eNB and a second reference signal from a secondary eNB. Moreover, the UE can include processing circuitry to calculate a system frame number (SFN) and subframe timing difference (SSTD) based on the first reference signal and the second reference signal. Moreover, the UE can generate a measurement report having a synchronization indicator for dual connectivity based on the calculated SSTD. Subsequently, the UE can send the generated measurement report to the master eNB.
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