公开(公告)号：US09210713B2

公开(公告)日：2015-12-08

申请号：US13887181

申请日：2013-05-03

申请人： BlackBerry Limited

发明人： Zhijun Cai ,  Yi Song ,  Yi Yu ,  Rose Qingyang Hu

IPC分类号： H04L12/28 ,  H04W72/08 ,  H04L1/18 ,  H04L27/00 ,  H04W52/26 ,  H04J1/16 ,  H04B7/26 ,  H04L1/00 ,  H04L5/00 ,  H04W72/12 ,  H04W84/04

CPC分类号： H04W72/082 ,  H04B7/2606 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0016 ,  H04L1/0026 ,  H04L1/1819 ,  H04L1/1861 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0073 ,  H04L5/0094 ,  H04L27/0008 ,  H04L27/0012 ,  H04L2001/0097 ,  H04W52/143 ,  H04W52/241 ,  H04W52/244 ,  H04W52/262 ,  H04W72/00 ,  H04W72/04 ,  H04W72/1226 ,  H04W84/047

摘要： A method for communicating using a wireless communication network is presented. The method may include receiving a channel quality indicator (CQI) from a first UE. The first UE is served by a base station. The CQI characterizes a channel quality between the first UE and the base station when the base station transmits at a high power. A first modulation and coding scheme (MCS) may be determined for when the base station transmits at a low power based on the received CQI. When the spectrum efficiency of the first MCS is equal to or higher than the spectrum efficiency of a pre-determined MCS, first UE may be communicated with using a low power transmission. In some cases, a physical downlink control channel (PDCCH) downlink control information (DCI) message is transmitted to the first UE to identify a power spectral density (PSD) level.

摘要翻译： 提出了一种使用无线通信网络进行通信的方法。 该方法可以包括从第一UE接收信道质量指示符（CQI）。 第一个UE由基站服务。 当基站以高功率发送时，CQI表征第一UE与基站之间的信道质量。 可以基于基于所接收的CQI以低功率发送何时确定第一调制和编码方案（MCS）。 当第一MCS的频谱效率等于或高于预定MCS的频谱效率时，可以使用低功率传输来通信第一UE。 在某些情况下，物理下行链路控制信道（PDCCH）下行链路控制信息（DCI）消息被发送到第一UE以识别功率谱密度（PSD）级别。

公开(公告)号：US09794850B2

公开(公告)日：2017-10-17

申请号：US15051407

申请日：2016-02-23

申请人： BlackBerry Limited

发明人： Chandra Sekhar Bontu ,  Mo-Han Fong ,  Zhijun Cai ,  Yi Yu ,  Yi Song ,  Rose Qingyang Hu

IPC分类号： H04W36/30 ,  H04W24/10 ,  H04W24/02 ,  H04W36/00 ,  H04W92/20

CPC分类号： H04W36/30 ,  H04W24/02 ,  H04W24/10 ,  H04W36/0055 ,  H04W36/0061 ,  H04W36/0094 ,  H04W92/20

摘要： A method and system for formulating an SINK metric for cells using only the existing RSRP and RSRQ measurements. With this method and system side information is exchanged between eNBs of an E-UTRAN using the X2 interface where the X2 interface carries the X2 Application Protocol (X2AP). The side information is introduced either within X2AP messages exchanged between eNB nodes or via modification of existing X2AP messages. Serving cell system information block (SIB) messages may also be modified or new SIB messages introduced to facilitate computation of an SNIR metric at a UE.

公开(公告)号：US09532363B2

公开(公告)日：2016-12-27

申请号：US13894169

申请日：2013-05-14

申请人： BlackBerry Limited

发明人： Yi Yu ,  Rose Qingyang Hu ,  Zhijun Cai ,  Yi Song

IPC分类号： H04W72/08 ,  H04W48/20

CPC分类号： H04W72/08 ,  H04W48/20

摘要： Supplemental node transmission assistance in a wireless network provides for transmissions between a wireless network and wireless user equipment in a first direction using a serving node of the wireless network while providing for transmissions between the wireless network and wireless user equipment in a second direction using a supplemental node of the wireless network. The supplemental node is selected based on providing better channel conditions between the network and the user equipment in the second direction than the serving node. The supplemental node thus provides transmission assistance for the serving node in order to provide the best available downlink and uplink communications between the user equipment and the network.

摘要翻译： 无线网络中的补充节点传输协助使用无线网络的服务节点在第一方向上提供无线网络和无线用户设备之间的传输，同时使用补充方式在第二方向上提供无线网络与无线用户设备之间的传输 无线网络的节点。 基于在第二方向上比服务节点在网络和用户设备之间提供更好的信道条件来选择补充节点。 因此，补充节点为服务节点提供传输协助，以便在用户设备和网络之间提供最佳可用的下行链路和上行链路通信。

公开(公告)号：US10321436B2

公开(公告)日：2019-06-11

申请号：US14707849

申请日：2015-05-08

申请人： BlackBerry Limited

发明人： Yi Yu ,  Rose Qingyang Hu ,  Zhijun Cai ,  James Earl Womack

IPC分类号： H04W72/04 ,  H04B7/024 ,  H04B7/06 ,  H04W88/04 ,  H04W84/04

摘要： Methods, devices and systems for a wireless communication system using multiple-serving nodes are provided. In one embodiment, a method of wireless communication comprises sending from a wireless device an uplink control signal to a first node via a second node using a second communication link; receiving by said wireless device a downlink control signal from said first node using a first communication link; sending from said wireless device another uplink control signal to said second node using said second communication link; and receiving by said wireless device another downlink control signal from said second node via said first node using said first communication link.

公开(公告)号：US09960881B2

公开(公告)日：2018-05-01

申请号：US15582052

申请日：2017-04-28

申请人： BlackBerry Limited

发明人： Rose Qingyang Hu ,  Yi Yu ,  Zhijun Cai ,  James Womack ,  Yi Song ,  Chandra S. Bontu ,  Mo-Han Fong

IPC分类号： H04L1/00 ,  H04W72/04 ,  H04W52/26

CPC分类号： H04W52/18 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/009 ,  H04L1/1812 ,  H04L1/203 ,  H04L5/003 ,  H04L2001/0097 ,  H04W52/262 ,  H04W72/04

摘要： A method for determining a Modulation and Coding Scheme (MCS) and power control includes determining an error rate of a communication channel between the UA and at least one of the base station and the RN. When the error rate is below a first threshold, the method includes at least one of increasing the MCS, and reducing a transmission power of the UA. When the error rate is above a second threshold, the method includes at least one of decreasing the MCS, and increasing a transmission power of the UA.

公开(公告)号：US20170244514A1

公开(公告)日：2017-08-24

申请号：US15582052

申请日：2017-04-28

申请人： BlackBerry Limited

发明人： Rose Qingyang Hu ,  Yi Yu ,  Zhijun Cai ,  James Womack ,  Yi Song ,  Chandra S. Bontu ,  Mo-Han Fong

IPC分类号： H04L1/00 ,  H04W52/26 ,  H04W72/04

CPC分类号： H04W52/18 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/009 ,  H04L1/1812 ,  H04L1/203 ,  H04L5/003 ,  H04L2001/0097 ,  H04W52/262 ,  H04W72/04

摘要： A method for determining a Modulation and Coding Scheme (MCS) and power control includes determining an error rate of a communication channel between the UA and at least one of the base station and the RN. When the error rate is below a first threshold, the method includes at least one of increasing the MCS, and reducing a transmission power of the UA. When the error rate is above a second threshold, the method includes at least one of decreasing the MCS, and increasing a transmission power of the UA.

公开(公告)号：US20150245338A1

公开(公告)日：2015-08-27

申请号：US14707849

申请日：2015-05-08

申请人： BlackBerry Limited

发明人： Yi Yu ,  Rose Qingyang Hu ,  Zhijun Cai ,  James Earl Womack

IPC分类号： H04W72/04 ,  H04W88/04

CPC分类号： H04W72/0406 ,  H04B7/024 ,  H04B7/0621 ,  H04W84/047 ,  H04W88/04

摘要： Methods, devices and systems for a wireless communication system using multiple-serving nodes are provided. In one embodiment, a method of wireless communication comprises sending from a wireless device an uplink control signal to a first node via a second node using a second communication link; receiving by said wireless device a downlink control signal from said first node using a first communication link; sending from said wireless device another uplink control signal to said second node using said second communication link; and receiving by said wireless device another downlink control signal from said second node via said first node using said first communication link.

摘要翻译： 提供了使用多服务节点的无线通信系统的方法，设备和系统。 在一个实施例中，一种无线通信方法包括：使用第二通信链路经由第二节点从无线设备发送上行链路控制信号到第一节点; 使用第一通信链路从所述无线设备接收来自所述第一节点的下行链路控制信号; 使用所述第二通信链路从所述无线设备向所述第二节点发送另一上行链路控制信号; 以及使用所述第一通信链路，经由所述第一节点从所述无线设备接收来自所述第二节点的另一个下行链路控制信