公开(公告)号：US20170303286A1

公开(公告)日：2017-10-19

申请号：US15099708

申请日：2016-04-15

Applicant: MEDIATEK INC.

Inventor： Aimin Justin Sang ,  Yuanyuan Zhang

IPC: H04W72/08 ,  H04W72/04 ,  H04W76/04 ,  H04W24/08

CPC classification number: H04W72/085 ,  H04W24/08 ,  H04W28/08 ,  H04W72/0413 ,  H04W72/042 ,  H04W76/15 ,  H04W76/27

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.

公开(公告)号：US20170054534A1

公开(公告)日：2017-02-23

申请号：US15345720

申请日：2016-11-08

Applicant: MEDIATEK INC.

Inventor： Aimin Justin Sang ,  Chia-Hao Yu ,  Yuanyuan Zhang ,  Jiann-Ching Guey

IPC: H04L5/00 ,  H04W72/08 ,  H04W36/00 ,  H04W72/04

CPC classification number: H04L5/0032 ,  H04B7/024 ,  H04B7/0408 ,  H04L5/005 ,  H04W36/0088 ,  H04W72/046 ,  H04W72/048 ,  H04W72/082 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/164 ,  Y02D70/442 ,  Y02D70/444

Abstract: Inter-cell coordination and beam-aware scanning with end-to-end UE-BS signaling enhancements for robust HO trigger in a beamforming mmWave network is proposed. From the network and the base station perspective, inter-BS control beam coordination is performed, coupled with neighbor-cell information advertisement to facilitate UE-side beam-aware scanning. Inter-BS CB coordination enables a variety of network planning, pre-determined or random, enhanced with UE-reports and dynamic re-coordination to minimize inter-cell interference. From UE perspective, by utilizing the advertised CB information, UE can learn serving cell and neighbor cell CB pattern for beam-aware scanning. Beam-aware scanning enables power saving fast scanning at the UE with beam-aware HO measurement of neighboring and target cells, which reduces HO latency and avoids unnecessary HO.

Abstract translation: 提出了在波束成形mmWave网络中用于鲁棒HO触发的端到端UE-BS信令增强的小区间协调和波束感知扫描。 从网络和基站的角度来看，执行BS间控制波束协调，并与邻居小区信息通告相结合，便于UE侧波束感知扫描。 BS间协调使得能够通过UE报告和动态重新协调来增强预定义或随机的各种网络规划，以最小化小区间干扰。 从UE的角度来看，通过利用所通告的CB信息，UE可以学习用于波束感知扫描的服务小区和相邻小区CB模式。 光束感知扫描使得能够在UE处能够快速扫描相邻和目标小区的波束感知HO测量，这降低了HO等待时间并避免了不必要的HO。