发明名称 A METHOD AND APPARATUS FOR UPLINK TIME ALIGNMENT UPON TIMING ADVANCE GROUP SPLIT OR CREATION
摘要 <p>This disclosure details example methods and apparatuses for a wireless communication network and for devices operating in such networks that reduce or eliminate the need for performing random access procedures to obtain appropriate Timing Advance,“TA”, values for use with new TA groups that include cells split from an existing TA group and/or new cells not in any existing TA groups defined for a given device. It is advantageously recognized herein that a TA relationship between one or more cells in an old or existing TA group of a device and one or more cells in a new TA group of the device may be known or otherwise estimated, e.g., based on known delay differences, cell sizes, etc. The TA relationship is used to initialize the TA value used for the new group, e.g., by copying or offsetting the current TA value of the old or existing TA group.</p>
申请公布号 EP2880928(A1) 申请公布日期 2015.06.10
申请号 EP20120791300 申请日期 2012.11.08
申请人 TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) 发明人 BERGSTRÖM, MATTIAS
分类号 H04W56/00 主分类号 H04W56/00
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