公开(公告)号：US09749927B2

公开(公告)日：2017-08-29

申请号：US15187007

申请日：2016-06-20

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Joachim Löhr ,  Christian Wengerter ,  Martin Feuersänger ,  Takashi Tamura ,  Hidetoshi Suzuki ,  Takahisa Aoyama

IPC: H04W36/30 ,  H04W72/04 ,  H04W56/00 ,  H04W36/04

CPC classification number: H04W36/30 ,  H04W36/04 ,  H04W56/0045 ,  H04W72/0446

Abstract: The invention relates methods for time aligning uplink transmissions by a mobile terminal in a mobile communication system, and to methods for performing a handover of a mobile terminal to a target aggregation access point. The invention is also providing apparatus and system for performing these methods, and computer readable media the instructions of which cause the apparatus and system to perform the methods described herein. In order to allow for aligning the timing of uplink transmissions on uplink component carriers, where different propagation delays are imposed on the transmissions on the uplink component carriers, the inventions suggests to time align the uplink component carriers based on a reference time alignment of a reference cell and a reception time difference or propagation delay difference between the downlink transmissions in the reference cell and the other radio cells, the uplink component carriers of which need to be time aligned.

公开(公告)号：US20160302129A1

公开(公告)日：2016-10-13

申请号：US15187007

申请日：2016-06-20

Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Inventor： Joachim Löhr ,  Christian Wengerter ,  Martin Feuersänger ,  Takashi Tamura ,  Hidetoshi Suzuki ,  Takahisa Aoyama

IPC: H04W36/30 ,  H04W36/04 ,  H04W72/04

CPC classification number: H04W36/30 ,  H04W36/04 ,  H04W56/0045 ,  H04W72/0446

Abstract: The invention relates methods for time aligning uplink transmissions by a mobile terminal in a mobile communication system, and to methods for performing a handover of a mobile terminal to a target aggregation access point. The invention is also providing apparatus and system for performing these methods, and computer readable media the instructions of which cause the apparatus and system to perform the methods described herein. In order to allow for aligning the timing of uplink transmissions on uplink component carriers, where different propagation delays are imposed on the transmissions on the uplink component carriers, the inventions suggests to time align the uplink component carriers based on a reference time alignment of a reference cell and a reception time difference or propagation delay difference between the downlink transmissions in the reference cell and the other radio cells, the uplink component carriers of which need to be time aligned.