公开(公告)号：US20150296442A1

公开(公告)日：2015-10-15

申请号：US14749732

申请日：2015-06-25

Applicant: Nokia Solutions and Networks Oy

Inventor： Hai Jiang ,  Jian Feng Kang ,  Xiaoyi Wang ,  Chao Wei ,  Yi Wu ,  Dong Mei Zhang

IPC: H04W48/10 ,  H04W16/32 ,  H04W72/00 ,  H04W48/20

CPC classification number: H04W48/10 ,  H04W16/32 ,  H04W48/20 ,  H04W72/005

Abstract: The present invention relates to methods and apparatuses for providing selective network access, wherein a cell type indication is provided based on at least one of a preamble and a header portion of a broadcast signal. At the receiving end, it is checked based on at least one of the preamble and the header portion, whether broadcast signals are received from different first and second cell types. The first cell type is selected for network access, if both broadcast signals from the first and second cell types are received with sufficient strength.

Abstract translation: 本发明涉及提供选择性网络接入的方法和装置，其中基于广播信号的前同步码和报头部分中的至少一个提供小区类型指示。 在接收端，基于前导码和报头部分中的至少一个检查是否从不同的第一和第二小区类型接收广播信号。 如果以足够的强度接收来自第一和第二小区类型的广播信号，则选择第一小区类型进行网络接入。

公开(公告)号：US20150173033A1

公开(公告)日：2015-06-18

申请号：US14407612

申请日：2012-06-14

Applicant: Nokia Solutions and Networks Oy

Inventor： Gaojin Wu ,  Yi Wu ,  Xingchen Guo

IPC: H04W56/00 ,  H04J11/00 ,  H04L5/14

CPC classification number: H04W56/001 ,  H04J11/0079 ,  H04J2011/0096 ,  H04L5/14 ,  H04W56/0015

Abstract: The present invention provides methods, apparatuses and a program relating to fast recovering for network listening schemes in synchronization over air for small cells. The present invention includes tracking, at a first base station, a reference signal of a second base station, determining, whether the reference signal can be tracked, if it is determined that the reference signal can be tracked, adjusting, at the first base station, a system clock of the first base station based on the reference signal of the second base station, and estimating and storing parameters relating to a frequency difference between the system clock of the first base station and a system clock of the second base station, and if it is determined that the reference signal cannot be reliably tracked, adjusting the system clock of the first base station based on the stored parameters.

Abstract translation: 本发明提供了关于小型小区空中同步的网络监听方案的快速恢复的方法，装置和程序。 本发明包括在第一基站处跟踪第二基站的参考信号，确定是否可以跟踪参考信号，如果确定可以跟踪参考信号，则在第一基站 ，基于第二基站的参考信号的第一基站的系统时钟，以及估计和存储与第一基站的系统时钟和第二基站的系统时钟之间的频率差有关的参数，以及 如果确定不能可靠地跟踪参考信号，则基于所存储的参数来调整第一基站的系统时钟。