公开(公告)号：US09510341B2

公开(公告)日：2016-11-29

申请号：US14851449

申请日：2015-09-11

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Bingyu Qu ,  Lei Guan ,  Lixia Xue

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04L5/001 ,  H04L5/0053

Abstract: A method, a base station, a User Equipment (UE) and a system for sending and receiving Physical Downlink Control Channel (PDCCH) signaling are disclosed. A method includes determining locations of a first search space and a second search space of a User Equipment (UE). A method also includes sending PDCCH signaling with no Carrier Indication Field (CIF) to the UE in a physically overlapped region between the first search space and the second search space if the physically overlapped region exists and a length of the PDCCH signaling with no CIF in the first search space is equal to a length of PDCCH signaling with the CIF in the second search space.

公开(公告)号：US20150055599A1

公开(公告)日：2015-02-26

申请号：US14517531

申请日：2014-10-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bingyu Qu ,  Lei Guan ,  Lixia Xue

IPC: H04W72/04

CPC classification number: H04W72/042 ,  H04L5/001 ,  H04L5/0053

Abstract: A method, a base station, a User Equipment (UE) and a system for sending and receiving Physical Downlink Control Channel (PDCCH) signaling are disclosed. A method includes determining locations of a first search space and a second search space of a User Equipment (UE). A method also includes sending PDCCH signaling with no Carrier Indication Field (CIF) to the UE in a physically overlapped region between the first search space and the second search space if the physically overlapped region exists and a length of the PDCCH signaling with no CIF in the first search space is equal to a length of PDCCH signaling with the CIF in the second search space.

Abstract translation: 公开了一种方法，基站，用户设备（UE）和用于发送和接收物理下行链路控制信道（PDCCH）信令的系统。 一种方法包括确定用户设备（UE）的第一搜索空间和第二搜索空间的位置。 一种方法还包括：如果物理重叠区存在，并且没有CIF的PDCCH信令的长度在第一搜索空间和第二搜索空间之间的物理重叠区域中，则向UE发送没有载波指示字段（CIF）的PDCCH信令 第一搜索空间等于第二搜索空间中具有CIF的PDCCH信令的长度。

公开(公告)号：US08693433B2

公开(公告)日：2014-04-08

申请号：US13685340

申请日：2012-11-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lixia Xue ,  Bingyu Qu ,  Lei Guan

IPC: H04W4/00

CPC classification number: H04W72/0406 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/0094 ,  H04W72/04

Abstract: Method and apparatus are provided for mapping and detecting a control channel. For the same aggregation level, according to a signaling length of a control channel corresponding to a component carrier, a corresponding search space is determined for at least two control channels that have the same signaling length, so as to enable the at least two control channels that have the same signaling length to use the same search space. The at least two control channels having the same signaling length are mapped to the determined corresponding search space. Therefore, conflicts between the control channels are reduced, and the number of times of blind detection of the control channels is also reduced.

Abstract translation: 提供了用于映射和检测控制信道的方法和装置。 对于相同的聚合级别，根据对应于分量载波的控制信道的信令长度，为具有相同信令长度的至少两个控制信道确定相应的搜索空间，以便使得至少两个控制信道 具有相同的信令长度以使用相同的搜索空间。 具有相同信令长度的至少两个控制信道被映射到所确定的对应搜索空间。 因此，控制信道之间的冲突减少，并且控制信道的盲检测次数也减少。