公开(公告)号：US20150172974A1

公开(公告)日：2015-06-18

申请号：US14287503

申请日：2014-05-27

Applicant: Industrial Technology Research Institute

Inventor： Chia-Lung Liu ,  Kuei-Li Huang ,  Ching-Hsu Chang

IPC: H04W36/00 ,  H04W60/00 ,  H04W76/02 ,  H04W74/08

CPC classification number: H04W36/0083 ,  H04L5/00 ,  H04L5/001 ,  H04L5/0053 ,  H04W36/0072 ,  H04W74/0833

Abstract: A home base station and method for supporting a plurality of cells under carrier aggregation. The home base station includes a preamble generator and a preamble monitor. The preamble generator allocates respective random access resources in the cells for handover to be carried out by a user equipment (UE), and upon receiving a handover request signal transmitted by a Mobility Management Entity (MME), generates a specific preamble and its transmission time, so that the UE performs random access on the cells based on the preamble and the transmission time to obtain the random access resources and sends out a Random Access Preamble (RAP). The preamble monitor enables the cells to simultaneously monitor the RAP sent by the UE, and when one of the cells receiving the RAP, identifies the cell on which the UE camps based on which one of the cells that has the RAP.

Abstract translation: 家庭基站和用于在载波聚合下支持多个小区的方法。 家庭基站包括前导码生成器和前导码监视器。 前导码生成器分配由用户设备（UE）执行的用于切换的小区中的各自的随机接入资源，并且在接收到由移动性管理实体（MME）发送的切换请求信号时，生成特定前导码及其发送时间 ，使得UE基于前导码和传输时间对小区执行随机接入，以获得随机接入资源并发送随机接入前导码（RAP）。 前导码监视器使得小区能够同时监视由UE发送的RAP，并且当接收到RAP的小区中的一个基于哪个小区具有RAP时识别出UE驻留的小区。

公开(公告)号：US09357453B2

公开(公告)日：2016-05-31

申请号：US14287503

申请日：2014-05-27

Applicant: Industrial Technology Research Institute

Inventor： Chia-Lung Liu ,  Kuei-Li Huang ,  Ching-Hsu Chang

IPC: H04W4/00 ,  H04W36/00 ,  H04W74/08 ,  H04L5/00

CPC classification number: H04W36/0083 ,  H04L5/00 ,  H04L5/001 ,  H04L5/0053 ,  H04W36/0072 ,  H04W74/0833

Abstract: A home base station and method for supporting a plurality of cells under carrier aggregation. The home base station includes a preamble generator and a preamble monitor. The preamble generator allocates respective random access resources in the cells for handover to be carried out by a user equipment (UE), and upon receiving a handover request signal transmitted by a Mobility Management Entity (MME), generates a specific preamble and its transmission time, so that the UE performs random access on the cells based on the preamble and the transmission time to obtain the random access resources and sends out a Random Access Preamble (RAP). The preamble monitor enables the cells to simultaneously monitor the RAP sent by the UE, and when one of the cells receiving the RAP, identifies the cell on which the UE camps based on which one of the cells that has the RAP.

Abstract translation: 家庭基站和用于在载波聚合下支持多个小区的方法。 家庭基站包括前导码生成器和前导码监视器。 前导码生成器分配由用户设备（UE）执行的用于切换的小区中的各自的随机接入资源，并且在接收到由移动性管理实体（MME）发送的切换请求信号时，生成特定前导码及其发送时间 ，使得UE基于前导码和传输时间对小区执行随机接入，以获得随机接入资源并发送随机接入前导码（RAP）。 前导码监视器使得小区能够同时监视由UE发送的RAP，并且当接收到RAP的小区中的一个基于哪个小区具有RAP时识别出UE驻留的小区。