Invention Grant
- Patent Title: Macro-assisted multi-connectivity scheme in multi-RAT cellular systems
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Application No.: US16054885Application Date: 2018-08-03
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Publication No.: US10555324B2Publication Date: 2020-02-04
- Inventor: Aimin Justin Sang , Yuanyuan Zhang
- Applicant: MEDIATEK INC.
- Applicant Address: TW Hsin-Chu
- Assignee: MEDIATEK INC.
- Current Assignee: MEDIATEK INC.
- Current Assignee Address: TW Hsin-Chu
- Agency: Imperium Patent Works
- Agent Zheng Jin
- Main IPC: H04W72/08
- IPC: H04W72/08 ; H04W72/04 ; H04W24/08 ; H04W76/27 ; H04W76/15 ; H04W28/08

Abstract:
A novel Macro-assisted Multi-Connectivity (MC) mobility scheme for UEs traversing clusters of (mmWave) small cells (small-BS or SBS) under the coverage of the same 5G or LTE Macro-cell (macro-BS or MBS) is proposed. It keeps the same Control/User split scheme and C-Plane anchor at MBS, same as in LTE Dual Connectivity (DuCo or DC), yet extending DuCo with a multi-connectivity split bearer user plane. For example, MBS adopts a multi-way packet data convergence protocol (PDCP) bearer split based on routing weighted by channel quality, SBS's resource availability, etc. with or without inter-BS flow control. Utilizing the MC user plane, a macro-assisted make-before-break MC mobility can be enabled.
Public/Granted literature
- US20180343662A1 Macro-Assisted Multi-Connectivity Scheme in Multi-RAT Cellular Systems Public/Granted day:2018-11-29
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