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1. 发明申请

US20200014563A1 METHODS AND APPARATUSES FOR DATA TRANSMISSION IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
公开(公告)号：US20200014563A1
公开(公告)日：2020-01-09
申请号：US16571791
申请日：2019-09-16
申请人： NEC (China) Co., Ltd.
发明人： Gang WANG , Zhennian Sun , Ming Lei
IPC分类号： H04L25/02 , H04L5/00 , H04W72/04 , H04W72/12
摘要： Embodiments of the present disclosure relate to downlink/uplink data transmission in a wireless communication system. In an embodiment of the present disclosure, there is provided a method for downlink data transmission in a wireless communication system which comprises transmitting an indication for a new-type reference signal to a user equipment, wherein the new-type reference signal has an identical location in frequency domain to a legacy reference signal; and transmitting the new-type reference signal and the legacy reference signal to the user equipment for using in channel estimation. In a case of more than one antenna port, the new-type reference signal may be designed to have a different location in time domain from a legacy reference signal to avoid interference to other antenna ports. With embodiments of the present disclosure, it is possible to perform a channel estimation based on both the legacy reference signal and the new-type reference signal to achieve a higher accuracy of channel estimation, and thus a UE with a low SNR may be also used in LTE networks.

2. 发明授权

US09949215B2 Method and apparatus for resource sharing for device-to-device and cellular communications in a multicell network 有权
公开(公告)号：US09949215B2
公开(公告)日：2018-04-17
申请号：US14785775
申请日：2013-05-03
申请人： NEC (CHINA) CO., LTD.
发明人： Chaofeng Li , Ming Lei , Jiaheng Wang , Daohua Zhu , Hua Zhang , Chunming Zhao
IPC分类号： H04L5/14 , H04W52/38 , H04W72/08 , H04W52/24 , H04W52/36 , H04W52/34 , H04W52/14
CPC分类号： H04W52/383 , H04W52/146 , H04W52/241 , H04W52/343 , H04W52/367 , H04W72/082
摘要： Embodiments of the disclosure provide a method and apparatus for resource sharing for D2D and cellular communications in a multicell network. The method comprises steps of: acquiring CSI on channels relating to D2D pair and a plurality of cellular users that potentially share resources with the D2D pair; and determining D2D transmit powers of the D2D pair on a plurality of frequency bands allocated to the plurality of cellular users and cellular transmit powers of the plurality of cellular users based on the CSI, to improve throughput of the multicell network.

3. 发明授权

US09807776B2 Method and apparatus for cross-subframe interference coordination 有权
公开(公告)号：US09807776B2
公开(公告)日：2017-10-31
申请号：US14761543
申请日：2013-01-17
申请人： NEC (CHINA) CO., LTD.
发明人： Dalin Zhu , Ming Lei
IPC分类号： H04W72/08 , H04L5/14 , H04B7/06 , H04W24/04 , H04W72/04
CPC分类号： H04W72/082 , H04B7/0617 , H04B7/0634 , H04L5/1469 , H04W24/04 , H04W72/0446
摘要： Embodiments of the disclosure provide a method and apparatus for cross-subframe interference coordination in a dynamic TDD system. The method comprises steps of: obtaining UL-DL configurations employed by a plurality of cells in the dynamic TDD system; and determining, based on the UL-DL configurations, a beamforming vector of at least one interfering cell which has cross-subframe interference on at least one interfered cell, so as to reduce the cross-subframe interference.

4. 发明授权

US09680541B2 Methods and apparatuses for channel estimation and feedback in a three-dimensional multiple input and multiple output system 有权
公开(公告)号：US09680541B2
公开(公告)日：2017-06-13
申请号：US14911753
申请日：2013-08-13
申请人： NEC (CHINA) CO., LTD.
发明人： Chuangxin Jiang , Chaofeng Li , Ming Lei
IPC分类号： H04L1/02 , H04B7/0456 , H04L1/06 , H04L1/00 , H04B7/06 , H04B7/0417 , H04L25/02
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.

5. 发明授权

US09554388B2 Method and apparatus of resource sharing for device-to-device and cellular communications 有权
标题翻译：用于设备到设备和蜂窝通信的资源共享的方法和装置
公开(公告)号：US09554388B2
公开(公告)日：2017-01-24
申请号：US14758272
申请日：2012-12-31
申请人： NEC (CHINA) CO., LTD.
发明人： Chaofeng Li , Ming Lei , Jiaheng Wang , Daohua Zhu , Chunming Zhao , Zhi Ding
IPC分类号： H04W72/04 , H04W72/08 , H04W52/26 , H04W52/34 , H04W52/38 , H04W88/06
CPC分类号： H04W72/048 , H04W52/265 , H04W52/267 , H04W52/346 , H04W52/383 , H04W72/082 , H04W72/085 , H04W88/06
摘要： The present disclosure provides a method and an apparatus of resource sharing for D2D and cellular communications. The method may comprise: determining a cellular user set containing potential cellular users that may share resources with a D2D pair; and determining transmit power of the D2D pair on a frequency band of at least one cellular user in the cellular user set and transmit power of the at least one cellular user through maximizing throughput of the D2D pair with a quality of service (QoS) constraint and a power budget constraint of each of the potential cellular users and a transmit power constraint of the D2D pair. With embodiments of the present disclosure, it may provide a non-orthogonal resource sharing solution in which a D2D pair can reuse resources of the cellular users as more as possible while the QoS of all the cellular users are guaranteed, whereby the performance of the D2D user may be improved greatly.
摘要翻译：本公开提供了一种用于D2D和蜂窝通信的资源共享的方法和装置。该方法可以包括：确定包含可能与D2D对共享资源的潜在蜂窝用户的蜂窝用户集合; 以及确定所述蜂窝用户组中的至少一个蜂窝用户的频带上的所述D2D对的发射功率，并且通过以服务质量（QoS）约束最大化所述D2D对的吞吐量来发送所述至少一个蜂窝用户的功率;以及每个潜在蜂窝用户的功率预算约束和D2D对的发射功率约束。利用本公开的实施例，其可以提供非正交资源共享解决方案，其中D2D对可以在所有蜂窝用户的QoS得到保证的情况下尽可能多地重用蜂窝用户的资源，从而D2D的性能用户可能会大大改善。

6. 发明授权

US09532371B2 Method and apparatus for scheduling user equipment 有权
标题翻译：调度用户设备的方法和装置
公开(公告)号：US09532371B2
公开(公告)日：2016-12-27
申请号：US14345139
申请日：2012-03-23
申请人： Gang Wang , Lei Jiang , Ming Lei
发明人： Gang Wang , Lei Jiang , Ming Lei
IPC分类号： H04W72/12 , H04W72/08 , H04W52/36 , H04L1/00 , H04L5/00
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。

7. 发明授权

US09426676B2 Method and apparatus for enhancing coverage 有权
标题翻译：提高覆盖率的方法和装置
公开(公告)号：US09426676B2
公开(公告)日：2016-08-23
申请号：US14385025
申请日：2012-09-25
申请人： NEC (CHINA) CO., LTD.
发明人： Gang Wang , Zhennian Sun , Ming Lei
IPC分类号： H04W24/02 , H04W72/04 , H04L5/14 , H04L1/18
CPC分类号： H04W24/02 , H04L1/18 , H04L1/1819 , H04L1/1887 , H04L5/14 , H04W72/0406 , H04W72/0446
摘要： Embodiments of the disclosure provide a method and apparatus for enhancing coverage in a TDD system, wherein there is at least one TDD UL/DL configuration for subframes in the TDD system, and the at least one UL/DL configuration comprises at least one special subframe and at least one normal subframe. In the method according to embodiments of the present invention, whether a special subframe is to be applied in TTI bundling is determined first, and then a message with an indication indicating that a special subframe is to be applied in TTI bundling is sent to a UE in response to determining that a special subframe is to be applied in TTI bundling, such that the UE transmits TTI bundling packets on at least one special subframe.
摘要翻译：本公开的实施例提供了一种用于增强TDD系统中的覆盖的方法和装置，其中对于TDD系统中的子帧存在至少一个TDD UL / DL配置，并且该至少一个UL / DL配置包括至少一个特殊子帧和至少一个正常子帧。在根据本发明的实施例的方法中，首先确定是否应用TTI绑定中的特殊子帧，然后将具有指示特定子帧的指示应用于TTI绑定的消息发送到UE 响应于确定在TTI绑定中应用特殊子帧，使得UE在至少一个特殊子帧上发送TTI绑定分组。

8. 发明授权

US09356668B2 Method and apparatus for predicting precoding matrix in MIMO system 有权
标题翻译： MIMO系统中预编码矩阵预测方法和装置
公开(公告)号：US09356668B2
公开(公告)日：2016-05-31
申请号：US13996376
申请日：2011-02-28
申请人： Yu Zhang , Dalin Zhu , Zhennian Sun , Ming Lei
发明人： Yu Zhang , Dalin Zhu , Zhennian Sun , Ming Lei
IPC分类号： H04B7/02 , H04B7/04
CPC分类号： H04B7/0456
摘要： A method for predicting precoding matrix (PM) in a MIMO System includes the steps of: obtaining a present PM based on a present transmission; fitting the present PM and previous PMs with a predefined model; and determining a forthcoming PM which is expected to be used in the next transmission based on the fitting.
摘要翻译：一种用于预测MIMO系统中的预编码矩阵（PM）的方法包括以下步骤：基于当前传输获得当前PM; 使用预定义的模型拟合现有的PM和以前的PM; 以及基于拟合来确定期望在下一次传输中使用的即将到来的PM。

9. 发明申请

US20160081046A1 METHOD AND APPARATUS FOR RESOURCE SHARING FOR DEVICE-TO-DEVICE AND CELLULAR COMMUNICATIONS IN A MULTICELL NETWORK 有权
标题翻译：用于多媒体网络中的设备到设备和蜂窝通信的资源共享的方法和装置
公开(公告)号：US20160081046A1
公开(公告)日：2016-03-17
申请号：US14785775
申请日：2013-05-03
申请人： NEC (CHINA) CO., LTD.
发明人： Chaofeng LI , Ming LEI , Jiaheng WANG , Daohua ZHU , Hua ZHANG , Chunming ZHAO
IPC分类号： H04W52/38 , H04W52/36 , H04W52/34 , H04W52/24
CPC分类号： H04W52/383 , H04W52/146 , H04W52/241 , H04W52/343 , H04W52/367 , H04W72/082
摘要： Embodiments of the disclosure provide a method and apparatus for resource sharing for D2D and cellular communications in a multicell network. The method comprises steps of: acquiring CSI on channels relating to D2D pair and a plurality of cellular users that potentially share resources with the D2D pair; and determining D2D transmit powers of the D2D pair on a plurality of frequency bands allocated to the plurality of cellular users and cellular transmit powers of the plurality of cellular users based on the CSI, to improve throughput of the multicell network.
摘要翻译：本公开的实施例提供了一种用于在多单元网络中进行D2D和蜂窝通信的资源共享的方法和装置。该方法包括以下步骤：在与D2D对相关的信道和潜在地与D2D对共享资源的多个蜂窝用户中获取CSI; 以及基于所述CSI来确定分配给所述多个蜂窝用户的多个频带上的所述D2D对的D2D发射功率和所述多个蜂窝用户的蜂窝发射功率，以提高所述多小区网络的吞吐量。

10. 发明授权

US09160701B2 Addressing method, addressing apparatus, fabric manager, switch, and data routing method 有权
标题翻译：寻址方法，寻址装置，Fabric管理器，交换机和数据路由方法
公开(公告)号：US09160701B2
公开(公告)日：2015-10-13
申请号：US13294636
申请日：2011-11-11
申请人： Yan Hu , Yong Xia , Yongqiang Liu , Quan Huang
发明人： Yan Hu , Yong Xia , Yongqiang Liu , Quan Huang
IPC分类号： H04L12/28 , H04L29/12 , H04L12/753
CPC分类号： H04L61/103 , H04L45/48 , H04L61/2038
摘要： The present disclosure provides an addressing method, an addressing apparatus, a fabric manager, a switch, and a data routing method for data center networks. The addressing apparatus includes a tree creating unit for, sequentially with each of switches as a root, creating a tree containing all hosts by means of network topology discovery function, to obtain a plurality of trees; a tree selecting unit for selecting a tree having a minimum height among the created plurality of trees; and an address assigning unit for assigning addresses to each of switches and each of hosts in a network with respect to each selected tree having a minimum height. The present disclosure is adaptable to various topologies employed by the data center. The present disclosure can achieve aggregation of locator addresses so that a forwarding table can be shortened, and can achieve load balance of the network.
摘要翻译：本公开提供了一种用于数据中心网络的寻址方法，寻址装置，结构管理器，交换机和数据路由方法。寻址装置包括：树生成单元，用于依次以每个交换机为根，通过网络拓扑发现功能创建包含所有主机的树，以获得多个树; 树选择单元，用于选择所生成的多个树中具有最小高度的树; 以及地址分配单元，用于相对于具有最小高度的每个所选树分配地址到每个交换机和网络中的每个主机。本公开适用于数据中心采用的各种拓扑。本公开可以实现定位器地址的聚合，从而可以缩短转发表，并且可以实现网络的负载平衡。

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