公开(公告)号：US20160192253A1

公开(公告)日：2016-06-30

申请号：US15065419

申请日：2016-03-09

Applicant: LG ELECTRONICS INC.

Inventor： Patrick FISCHER

IPC: H04W36/00 ,  H04W28/12 ,  H04L12/825 ,  H04L12/801

Abstract: For each target cell determined by a handover decision process, a first message is transmitted from a source base station (20S) to a target base station (20T) servicing that target cell. The first message includes an identifier of a wireless device (10) having a communication link with the source base station and information for obtaining authentication data for this wireless device. The authentication data depends on a secret key available to the wireless device and the source base station and on an identity of the target cell. Upon failure of the communication link, a cell is selected at the wireless device, which transmits to that cell a reestablishment request message including its identifier and authentication data depending on the secret key and on an identity of the selected cell. If the selected cell is a target cell serviced by a target base station that received a first message, conformity of the authentication data included in the reestablishment request message with the authentication data obtained from this first message is verified to authorize transfer of the communication link to the selected cell.

公开(公告)号：US20140029548A1

公开(公告)日：2014-01-30

申请号：US14042204

申请日：2013-09-30

Applicant: LG ELECTRONICS INC.

Inventor： Patrick FISCHER ,  Remi FEUILLETTE ,  Dragan VUJCIC

IPC: H04W74/02

CPC classification number: H04W74/02 ,  H04J13/0059 ,  H04J13/0062 ,  H04L27/2607 ,  H04W74/004 ,  H04W74/0833 ,  H04W74/0866

Abstract: Methods for allocating and choosing dedicated signatures for random access are provided. Options for allocating dedicated signatures include allocating the dedicated signature from the unused space of the random signature root index when there is unused space and allocating more dedicated signatures from the same root index using the same time/frequency resources if additional signatures are needed, and reserving some preambles from the contention-based random access preambles from both sets of preambles. The present invention also proposes that the dedicated signatures be reserved in each of two sets of preambles.

Abstract translation: 提供了分配和选择用于随机存取的专用签名的方法。 用于分配专用签名的选项包括当存在未使用的空间时从随机签名根索引的未使用空间分配专用签名，并且如果需要附加签名则使用相同的时间/频率资源从相同根索引分配更多专用签名，并且保留 来自两组前导码的基于竞争的随机访问前导码的一些前导码。 本发明还提出，在两组前导码中的每一组中保留专用签名。

公开(公告)号：US20130336266A1

公开(公告)日：2013-12-19

申请号：US13973620

申请日：2013-08-22

Applicant: LG ELECTRONICS INC.

Inventor： Patrick FISCHER ,  Dragan VUJCIC

IPC: H04W72/04

CPC classification number: H04W72/0413 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0058 ,  H04W74/0866

Abstract: A method for generating an uplink transmission burst includes using one or more symbols to define the uplink transmission burst, and forming a preamble portion and a payload portion for the uplink transmission burst. The preamble portion is formed using at least a portion of one or more of the symbols, such that the preamble portion includes a signature that is defined in a predetermined signature set. The payload portion is formed using at least a portion of one or more of the symbols. Typically, at least a portion of the preamble portion and at least a portion of the payload portion are formed using the same symbol.

Abstract translation: 一种用于产生上行链路传输脉冲串的方法包括使用一个或多个符号来定义上行链路传输脉冲串，以及形成用于上行链路传输突发的前同步码部分和有效载荷部分。 使用一个或多个符号的至少一部分来形成前导码部分，使得前导码部分包括在预定签名集中定义的签名。 有效载荷部分使用一个或多个符号的至少一部分来形成。 通常，前同步码部分的至少一部分和有效载荷部分的至少一部分使用相同的符号形成。