专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2015042817A1 METHODS AND APPARATUSES FOR CCI MITIGATION AND CHANNEL STATE CONDITION MEASURING AND REPORTING AND A NETWORK CENTRAL CONTROLLER 审中-公开
标题翻译： CCI减缓和通道状态测量与报告和网络中央控制器的方法和装置
公开(公告)号：WO2015042817A1
公开(公告)日：2015-04-02
申请号：PCT/CN2013/084282
申请日：2013-09-26
申请人： NEC (CHINA) CO., LTD.
发明人： ZHU, Dalin , SUN, Zhennian , CAO, Jianfei , LEI, Ming
IPC分类号： H04W72/04
CPC分类号： H04W72/082 , H04W16/10 , H04W72/0446
摘要： Embodiments of the present disclosure relate to a method and apparatus for cross-subframe co-channel interference (CCI) mitigation in a Time Division Duplex (TDD) system. The method may comprise: identifying a cluster-edge user equipment from user equipments in a cluster comprising at least one cell, based on information about large-scale fading for channels allocated to the user equipments; and allocating resource to the cluster-edge user equipment so that at least one of flexible subframes in uplink/downlink (UL/DL) configuration is disabled, so as to mitigate the CCI. Besides, in some embodiments of the present disclosure, it may further perform an adaptive cell clustering based on mutual coupling loss (MCL) with a dynamically adjusted MCL threshold, so as to improve the clustering and in turn further mitigate the CCI. With the embodiments of the present disclosure, the CCI may be mitigated substantially, and it may benefit from improved cell-average cell-edge performances and enhanced capability in adapting to the asymmetric traffic variations.
摘要翻译：本公开的实施例涉及在时分双工（TDD）系统中用于跨子帧同信道干扰（CCI）缓解的方法和装置。该方法可以包括：基于关于分配给用户设备的信道的大规模衰落的信息，从包括至少一个小区的群集中的用户设备识别群集边缘用户设备; 并且向簇边缘用户设备分配资源，使得在上行链路/下行链路（UL / DL）配置中的至少一个灵活子帧被禁用，以便减轻CCI。此外，在本公开的一些实施例中，其还可以基于具有动态调整的MCL阈值的相互耦合损耗（MCL）来执行自适应小区聚类，以便改进聚类并进而进一步减轻CCI。利用本公开的实施例，可以基本上减轻CCI，并且可以从改进的小区平均小区边缘性能和在适应不对称业务变化的增强能力方面受益。

2. 发明申请

WO2015021596A1 METHODS AND APPARATUSES FOR CHANNEL ESTIMATION AND FEEDBACK IN A THREE-DIMENSIONAL MULTIPLE INPUT AND MULTIPLE OUPUT SYSTEM 审中-公开
标题翻译：三维多输入多用户系统中信道估计和反馈的方法与设备
公开(公告)号：WO2015021596A1
公开(公告)日：2015-02-19
申请号：PCT/CN2013/081371
申请日：2013-08-13
申请人： NEC(CHINA) CO., LTD.
发明人： JIANG, Chuangxin , LI, Chaofeng , LEI, Ming
IPC分类号： H04L1/06
CPC分类号： H04B7/0456 , H04B7/0417 , H04B7/0626 , H04B7/0639 , H04L1/0026 , H04L1/06 , H04L25/0226
摘要： Embodiments of the present disclosure relate to methods and apparatuses for channel estimation and feedback in a three dimensional multiple input multiple output (3D-MIMO) system. A method may comprise: transmitting a plurality of reference signals for a plurality of columns in an antenna array; receiving indication information on configuration adjustment of a precoding information feedback, wherein the indication information is based on measurement on the plurality of reference signals; and adjusting a configuration of the precoding information feedback based on the indication information so that a multiple vertical precoding information feedback is enabled when it can obtain a performance gain. Especially, the multiple vertical precoding information feedback may represent feeding back a plurality of vertical precoding matrix indicators for the plurality of columns in the antenna array. In embodiments of the present disclosure, there is provided a new solution for channel estimation and feedback in a 3D-MIMO system, and it may achieve a more accurate beamforming and/or a higher order spatial multiplexing, thereby improving the performance of the 3D-MIMO system.
摘要翻译：本公开的实施例涉及用于三维多输入多输出（3D-MIMO）系统中的信道估计和反馈的方法和装置。一种方法可以包括：在天线阵列中发送多个参考信号用于多个列; 接收关于预编码信息反馈的配置调整的指示信息，其中所述指示信息基于对所述多个参考信号的测量; 以及基于所述指示信息来调整所述预编码信息反馈的配置，使得当能够获得性能增益时，多个垂直预编码信息反馈被启用。特别地，多垂直预编码信息反馈可以表示反馈天线阵列中的多个列的多个垂直预编码矩阵指示符。在本公开的实施例中，提供了一种用于3D-MIMO系统中的信道估计和反馈的新解决方案，并且其可以实现更准确的波束成形和/或更高阶空间复用，从而提高3D- MIMO系统。

3. 发明申请

WO2013181850A9 METHOD AND APPARATUS FOR THREE-DIMENSIONAL BEAMFORMING 审中-公开
标题翻译：三维波束形成的方法和装置
公开(公告)号：WO2013181850A9
公开(公告)日：2014-11-06
申请号：PCT/CN2012076667
申请日：2012-06-08
申请人： NEC CHINA CO LTD , ZHANG YU , LEI MING
发明人： ZHANG YU , LEI MING
IPC分类号： H01Q3/26
CPC分类号： H04W16/28 , H01Q1/246 , H01Q3/26 , H04B7/0408 , H04B7/0413 , H04B7/0426 , H04B7/0447 , H04B7/0456 , H04B7/0465 , H04B7/0617 , H04B7/0626 , H04B7/063 , H04B7/0632 , H04B7/0639 , H04B15/00 , H04L1/0003 , H04L1/0009 , H04L1/06
摘要： Embodiments of the disclosure provide methods and apparatuses for three-dimensional beam forming. The method may comprise: mapping vertical virtual antenna ports to physical antenna ports based on vertical reference signals to obtain mapped vertical reference signals; transmitting the mapped vertical reference signals to a user equipment; receiving a tilting indicator from the user equipment, wherein the tilting indicator is obtained based on the mapped vertical reference signals at the user equipment; determining a tilting vector based on the received tilting indicator, wherein the tilting vector indicates adjustment for traffic data in antenna vertical tilting; and adjusting traffic data with the tilting vector.
摘要翻译：本公开的实施例提供了用于三维束形成的方法和装置。该方法可以包括：基于垂直参考信号将垂直虚拟天线端口映射到物理天线端口以获得映射的垂直参考信号; 将映射的垂直参考信号发送到用户设备; 从所述用户设备接收倾斜指示符，其中所述倾斜指示符是基于所述用户设备处的映射的垂直参考信号获得的; 基于所接收的倾斜指示器确定倾斜向量，其中所述倾斜矢量指示天线垂直倾斜中的交通数据的调整; 并用倾斜向量调整交通数据。

4. 发明申请

WO2014110728A1 METHOD AND APPARATUS FOR DL/UL RESOURCE CONFIGURATION IN A TDD SYSTEM 审中-公开
标题翻译：用于TDD系统中DL / UL资源配置的方法和装置
公开(公告)号：WO2014110728A1
公开(公告)日：2014-07-24
申请号：PCT/CN2013/070528
申请日：2013-01-16
申请人： NEC(CHINA) CO., LTD.
发明人： ZHU, Dalin , ZHANG, Yu , SUN, Zhennian , LI, Chaofeng , WANG, Gang , LEI, Ming
IPC分类号： H04W16/14
CPC分类号： H04W24/02 , H04W16/10 , H04W24/08 , H04W72/0446 , H04W84/045
摘要： Embodiments of the present disclosure relate to a method and apparatus for DL/UL resource configuration in a Time Division Duplex (TDD) system. The method may comprise: dividing a plurality of cells into disjoint clusters based on interference conditions among base stations of the plurality of cells; and performing, in each of at least one of the disjoint clusters, a cooperation DL/UL resource configuration on in-cluster cells included therein based on traffic conditions and performance metrics of the in-cluster cells, so as to determine respective DL/UL resource configurations for the in-cluster cells. With embodiments of the present disclosure, time domain resources may be utilized more efficiently and, additionally, it may be expected to achieve a better overall performance at a low cost.
摘要翻译：本公开的实施例涉及在时分双工（TDD）系统中用于DL / UL资源配置的方法和装置。该方法可以包括：基于多个小区中的基站之间的干扰条件将多个小区划分成不相交的聚类; 并且在至少一个所述不相交集群中的每一个中，基于所述集群内小区的业务条件和性能度量，在其中包括的集群中小区中执行协作DL / UL资源配置，以便确定相应的DL / UL 群集单元的资源配置。利用本公开的实施例，可以更有效地利用时域资源，另外，可以预期以低成本实现更好的整体性能。

5. 发明申请

WO2014047946A1 METHOD AND APPARATUS FOR FREQUENCY REUSE IN RELAYING COMMUNICATION SYSTEM AND NETWORK NODE THEREFOR 审中-公开
标题翻译：中继通信系统和网络节点的频率重用方法与装置
公开(公告)号：WO2014047946A1
公开(公告)日：2014-04-03
申请号：PCT/CN2012/082499
申请日：2012-09-29
申请人： NEC(CHINA) CO., LTD.
发明人： YI, Su , LEI, Ming
IPC分类号： H04W16/12
CPC分类号： H04W16/12 , H04W84/047 , H04W88/085
摘要： The present disclosure provides a method and apparatus for frequency reuse in a relaying communication system and a network node therefor. The method may comprise dividing, for access link transmission, system bandwidth into at least three frequency bands; and selecting, from the at least three frequency bands, one frequency band for base stations in all cells, the other frequency bands being reused by relay nodes in the cells, with a frequency reuse factor of at least two. Additionally, in backhaul link transmission, it may use a different frequency reuse scheme. In example scheme, the relay nodes are considered as cell edge users and the system bandwidth may be divided into at least another three frequency bands, one of which is selected for serving relay nodes in a cell such that frequency bands for serving relay nodes are orthogonal between two neighboring cells, the others of which is for serving the macrocell users in the cell. With embodiments of the present invention, interference experienced by users, especially cell edge users, might be reduced greatly and thus their performance will be improved. Additionally, the solution as provided in the present invention has a very low complexity and the signaling design may be compatible with the current LTE standard.
摘要翻译：本公开提供了一种用于中继通信系统及其网络节点中的频率重用的方法和装置。该方法可以包括将系统带宽划分成至少三个频带，用于接入链路传输; 并且从所述至少三个频带中选择所有小区中的基站的一个频带，其他频带由小区中的中继节点重用，频率重用因子至少为2。另外，在回传链路传输中，它可以使用不同的频率重用方案。在示例方案中，中继节点被认为是小区边缘用户，并且系统带宽可以被划分为至少另外三个频带，其中一个被选择用于在小区中为中继节点服务，使得服务中继节点的频带是正交的在两个相邻小区之间，其他小区用于为小区中的宏小区用户提供服务。利用本发明的实施例，用户，特别是小区边缘用户所经受的干扰可能会大大降低，从而提高其性能。此外，本发明提供的解决方案具有非常低的复杂度，并且信令设计可以与当前LTE标准兼容。

6. 发明申请

WO2013143132A1 METHOD AND APPARATUS FOR DYNAMIC DL-UL RECONFIGURATION IN TDD SYSTEM 审中-公开
标题翻译： TDD系统动态DL-UL重新配置的方法与装置
公开(公告)号：WO2013143132A1
公开(公告)日：2013-10-03
申请号：PCT/CN2012/073342
申请日：2012-03-30
申请人： NEC (CHINA) CO., LTD. , ZHU, Dalin , SUN, Zhennian , YI, Su , WANG, Gang , LEI, Ming
发明人： ZHU, Dalin , SUN, Zhennian , YI, Su , WANG, Gang , LEI, Ming
IPC分类号： H04W72/12
CPC分类号： H04L41/0816 , H04L5/14 , H04W24/02 , H04W28/18 , H04W72/0413 , H04W72/042 , H04W72/0486 , H04W72/087 , H04W88/08
摘要： Embodiments of the disclosure provide a method and apparatus for reconfiguring DL-UL resource allocation in a TDD system. The method includes steps of: a) obtaining traffic condition about DL and UL data to be transmitted; b) estimating system-wise transmission capability and/or UE-wise transmission capability, wherein the system-wise transmission capability accounts for DL transmission capability and UL transmission capability of the TDD system, and the UE-wise transmission capability accounts for transmission capabilities of different UEs; and c) reconfiguring the DL-UL resource allocation according to the obtained traffic condition and the estimated system-wise transmission capability and/or UE-wise transmission capability.
摘要翻译：本公开的实施例提供了一种用于在TDD系统中重新配置DL-UL资源分配的方法和装置。该方法包括以下步骤：a）获得关于要发送的DL和UL数据的交通状况; b）估计系统传输能力和/或UE智能传输能力，其中系统传输能力考虑到TDD系统的DL传输能力和UL传输能力，并且UE智能传输能力考虑到传输能力不同的UE; 以及c）根据获得的业务条件和估计的系统传输能力和/或UE智能传输能力重新配置DL-UL资源分配。

7. 发明申请

WO2013143114A1 METHOD AND APPARATUS FOR DYNAMICALLY ADJUSTING UPLINK-DOWNLINK CONFIGURATION 审中-公开
标题翻译：用于动态调整上下行链路配置的方法和装置
公开(公告)号：WO2013143114A1
公开(公告)日：2013-10-03
申请号：PCT/CN2012/073296
申请日：2012-03-30
申请人： NEC(CHINA) CO., LTD. , ZHU, Dalin , SUN, Zhennian , YI, Su , WANG, Gang , LEI, Ming
发明人： ZHU, Dalin , SUN, Zhennian , YI, Su , WANG, Gang , LEI, Ming
IPC分类号： H04W72/04
CPC分类号： H04W72/0486 , H04L5/14 , H04W72/0446
摘要： Embodiments of the disclosure provide a method and apparatus for dynamically adjusting UL-DL configuration. In the method according to embodiments of the present invention, downlink traffic load and uplink traffic load for transmission between a BS and a UE in a TDD system may be obtained, a UL-DL traffic load relation may be determined based on the downlink traffic load and the uplink traffic load and a UL-DL configuration may be selected based on the UL-DL traffic load relation.
摘要翻译：本公开的实施例提供了用于动态调整UL-DL配置的方法和装置。在根据本发明的实施例的方法中，可以获得用于TDD系统中的BS与UE之间的传输的下行业务负载和上行流量负载，可以基于下行业务负载来确定UL-DL业务负载关系并且可以基于UL-DL业务负载关系来选择上行链路业务负载和UL-DL配置。

8. 发明申请

WO2013143074A1 METHOD AND APPARATUS FOR REPORTING AND CANCELLING CROSS-SUBFRAME CO-CHANNEL INTERFERENCE 审中-公开
标题翻译：用于报告和取消交叉子帧同频干扰的方法和装置
公开(公告)号：WO2013143074A1
公开(公告)日：2013-10-03
申请号：PCT/CN2012/073146
申请日：2012-03-27
申请人： NEC(CHINA) CO., LTD. , ZHU, Dalin , SUN, Zhennian , ZHANG, Yu , WANG, Gang , LEI, Ming
发明人： ZHU, Dalin , SUN, Zhennian , ZHANG, Yu , WANG, Gang , LEI, Ming
IPC分类号： H04W72/04
CPC分类号： H04W72/085 , H04L1/0021 , H04L1/0026 , H04L1/20 , H04L5/0058 , H04W72/1226
摘要： Embodiments of the disclosure provide methods and apparatuses for cancelling cross-subframe co-channel interference (CCI), the method comprising receiving a channel quality indicator (CQI) of a cross-subframe from a user equipment (UE), the cross-subframe is a downlink subframe that is interfered by an uplink subframe in a neighboring cell; determining if the UE should be scheduled during cross-subframes by comparing the CQI with an adaptive threshold; and scheduling the UE during the cross-subframes if the UE is determined to be scheduled. By means of determining the resources scheduling based on an adaptive threshold, CCI may be cancelled and the overall resource usage will be increased according to the present invention. Furthermore, the adaptive threshold scheme can be easily implemented in practice.
摘要翻译：本公开的实施例提供了用于消除跨子帧同信道干扰（CCI）的方法和装置，该方法包括从用户设备（UE）接收跨子帧的信道质量指示符（CQI），跨子帧是被相邻小区中的上行链路子帧干扰的下行链路子帧; 通过将所述CQI与自适应阈值进行比较来确定是否应在跨子帧期间调度所述UE; 以及如果所述UE被确定为被调度，则在所述跨子帧期间调度所述UE。通过基于自适应阈值确定资源调度，可以取消CCI，并且根据本发明将增加总体资源使用。此外，自适应阈值方案可以在实践中容易地实现。

9. 发明申请

WO2013139036A1 METHOD AND APPARATUS FOR SCHEDULING USER EQUIPMENT 审中-公开
标题翻译：调度用户设备的方法和装置
公开(公告)号：WO2013139036A1
公开(公告)日：2013-09-26
申请号：PCT/CN2012/072935
申请日：2012-03-23
申请人： NEC(CHINA) CO., LTD. , WANG, Gang , JIANG, Lei , LEI, Ming
发明人： WANG, Gang , JIANG, Lei , LEI, Ming
IPC分类号： H04W72/08
CPC分类号： H04W72/1231 , H04L1/0003 , H04L1/0015 , H04L5/0057 , H04W52/367 , H04W72/08
摘要： Embodiments of the disclosure provide a method and apparatus for scheduling a UE, wherein a BS serves the UE and employs a non-normal subframe to coordinate inter-cell interference, and wherein transmission power in the non-normal subframe is lower than that in a normal subframe. In the method according to embodiments of the present invention, channel quality information for the non-normal subframe may be adjusted based on information on transmission power of downlink packets and reference signals; and a target MCS may be determined according to the adjusted channel quality information, so that the BS schedules the UE based on the target MCS in the non-normal subframe.
摘要翻译：本公开的实施例提供了一种用于调度UE的方法和装置，其中BS服务于UE并采用非正常子帧来协调小区间干扰，并且其中非正常子帧中的发射功率低于正常子帧在根据本发明的实施例的方法中，可以基于关于下行链路分组和参考信号的发送功率的信息来调整用于非正常子帧的信道质量信息; 并且可以根据所调整的信道质量信息来确定目标MCS，使得BS基于非正常子帧中的目标MCS来调度UE。

10. 发明申请

WO2013097240A1 METHOD AND APPARATUS FOR BEAMFORMING IN COGNITIVE RADIO SYSTEM 审中-公开
标题翻译：用于认知无线电系统中的光束的方法和装置
公开(公告)号：WO2013097240A1
公开(公告)日：2013-07-04
申请号：PCT/CN2011/085185
申请日：2011-12-31
申请人： NEC (CHINA) CO., LTD. , LI, Chaofeng , LEI, Ming , GAO, Feifei , LUAN, Tianxiang
发明人： LI, Chaofeng , LEI, Ming , GAO, Feifei , LUAN, Tianxiang
IPC分类号： H04W72/00
CPC分类号： H04W16/14 , H04W16/28 , H04W84/047
摘要： Embodiments of the disclosure provide a cognitive radio system and a method and apparatus for beamforming in the cognitive radio system. The cognitive radio system may comprise a base station, a relay station, a primary user and a plurality of secondary users, wherein the base station and the relay station serve the plurality of secondary users; and an apparatus for beamforming in the cognitive radio system. The apparatus may comprise: an obtainer configured to obtain channel information on channels associated with the base station, the relay station, the secondary users and the primary user; and a determiner configured to determine, based on the channel information, BS precoding matrices for transmission from the base station to the plurality of secondary users and a RS precoding matrix for transmission from the relay station to the plurality of secondary users. The system, method and system of the present invention can implement CR transmission beamforming while improving the performance of the cognitive radio system.
摘要翻译：本公开的实施例提供了认知无线电系统以及用于在认知无线电系统中的波束成形的方法和装置。认知无线电系统可以包括基站，中继站，主用户和多个次用户，其中基站和中继站服务于多个次用户; 以及在认知无线电系统中用于波束成形的装置。所述装置可以包括：获取器，被配置为获得关于与所述基站，所述中继站，所述次要用户和所述主用户相关联的信道的信道信息; 以及确定器，被配置为基于所述信道信息来确定用于从所述基站到所述多个次用户的传输的BS预编码矩阵，以及用于从所述中继站到所述多个次用户的传输的RS预编码矩阵。本发明的系统，方法和系统可以在提高认知无线电系统的性能的同时实现CR传输波束成形。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式