MOBILITY HANDLING IN ULTRA DENSE NETWORKS

WIPO Patent Application WO/2017/107902

A1

User Equipment (UE) mobility in Ultra Dense Networks (UDNs) is based on communication signal layers, which could include respective data streams in an Orthogonal Frequency Division Multiplexing (OFDM) domain, a code domain using respective codebooks, and/or a spatial domain, for example. A UE uses candidate layer decoding parameters in applying layer-based decoding to communication signals that it received from network nodes. Layers could be allocated to UEs and transition between network nodes as UEs move between different network service areas. Layers could instead be allocated to network nodes. Layer-based decoding provides for UE mobility without requiring explicit handover processing every time a UE moves between different service areas.

BALIGH MOHAMMADHADI (CA)
MA JIANGLEI (CA)
BAYESTEH ALIREZA (CA)
VILAIPORNSAWAI USA (CA)
LIN YICHENG (CA)
ZARIFI KEYVAN (CA)

PCT/CN2016/111092

June 29, 2017

December 20, 2016

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HUAWEI TECH CO LTD (CN)

H04W36/00

CN104486784A	2015-04-01
CN104581845A	2015-04-29

ZTE.: "Motivation for study on enhancements for densely deployed small cells in LTE", 3GPP TSG RAN MEETING #70, NO. RP-151790, 10 December 2015 (2015-12-10), XP051052694
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USA VILAIPORNSAWAI: "SCMA for Open-Loop Joint Transmission CoMP", 2015 IEEE 82ND VEHICULAR TECHNOLOGY CONFERENCE OF, 6 September 2015 (2015-09-06)
See also references of EP 3381225A4

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