公开(公告)号：US09986524B2

公开(公告)日：2018-05-29

申请号：US15376046

申请日：2016-12-12

申请人： BlackBerry Limited

发明人： Hua Xu ,  Shiwei Gao ,  Zhijun Cai ,  Chandra Sekhar Bontu ,  Yi Song ,  Yajun Zhu

IPC分类号： H04W56/00 ,  H04W72/04 ,  H04W88/02 ,  H04W88/08

CPC分类号： H04W56/0015 ,  H04W72/0446 ,  H04W88/02 ,  H04W88/08

摘要： Described herein is a system with a first network element and a second network element. The first network element contains a processor configured to synchronize with the second network element; and maintain synchronization with the second network element. The first network element is a small cell eNB and the second network element is one of the following: a macro cell enhanced node-B (eNB); or a small cell eNB.

公开(公告)号：US09973901B2

公开(公告)日：2018-05-15

申请号：US14229324

申请日：2014-03-28

申请人： BlackBerry Limited

发明人： Zhijun Cai ,  Chandra Sekhar Bontu ,  Yi Song

IPC分类号： H04W4/06 ,  H04L1/18 ,  H04L5/00 ,  H04L1/00 ,  H04W4/10 ,  H04W72/12

CPC分类号： H04W4/06 ,  H04L1/0026 ,  H04L1/0031 ,  H04L1/1671 ,  H04L1/1812 ,  H04L5/0053 ,  H04L2001/0093 ,  H04W4/10 ,  H04W72/121

摘要： In some implementations, a method in a user equipment (UE) for supporting group communication service includes receiving, from a base station, a group communication on a Physical Downlink Shared Channel (PDSCH). The UE determines a first Hybrid Automatic Repeat reQuest (HARQ) information that corresponds to the group communication on the PDSCH. The UE transmits the first HARQ information. In some implementations, the UE determines a group Channel State Information (CSI) for a group communication that is transmitted by a base station on a PDSCH. The UE determines a unicast CSI for a unicast communication that is transmitted by the base station on the PDSCH. The UE transmits the group CSI. The UE transmits the unicast CSI.

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：US09521637B2

公开(公告)日：2016-12-13

申请号：US13767682

申请日：2013-02-14

申请人： BlackBerry Limited

发明人： Hua Xu ,  Shiwei Gao ,  Yajun Zhu ,  Zhijun Cai ,  Chandra Sekhar Bontu ,  Yi Song

IPC分类号： H04W56/00

CPC分类号： H04W56/0015 ,  H04W72/0446 ,  H04W88/02 ,  H04W88/08

摘要： Described herein is a system with a first network element and a second network element. The first network element contains a processor configured to synchronize with the second network element; and maintain synchronization with the second network element. The first network element is a small cell eNB and the second network element is one of the following: a macro cell enhanced node-B (eNB); or a small cell eNB.

摘要翻译： 这里描述的是具有第一网络元件和第二网络元件的系统。 第一网元包含配置成与第二网元同步的处理器; 并保持与第二网络元件的同步。 第一网元是小小区eNB，第二网元是以下之一：宏小区增强节点B（eNB）; 或小型小区eNB。

公开(公告)号：US20160323895A1

公开(公告)日：2016-11-03

申请号：US15208168

申请日：2016-07-12

申请人： BlackBerry Limited

发明人： Vahid Pourahmadi ,  Hua Xu ,  Siva Dharshan Muruganathan ,  Yongkang Jia ,  Shiwei Gao ,  Yi Song ,  Robert Mark Harrison

IPC分类号： H04W72/08 ,  H04J11/00 ,  H04L27/26 ,  H04L5/00

CPC分类号： H04W72/082 ,  H04J11/00 ,  H04L5/0007 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0073 ,  H04L5/0094 ,  H04L27/26

摘要： A method for receiving a PDCH is provided. The method comprises: receiving, by a UE, information identifying a plurality of resource elements that are transmitted with zero power in a resource block containing the PDCH; receiving, by the UE, a first DMRS on a first DMRS port transmitted from a first cell; and receiving, by the UE, the PDCH that is transmitted on the first DMRS port.

摘要翻译： 提供了一种用于接收PDCH的方法。 该方法包括：由UE接收标识在包含PDCH的资源块中以零功率发送的多个资源元素的信息; 由所述UE接收从第一小区发送的第一DMRS端口上的第一DMRS; 以及由所述UE接收在所述第一DMRS端口上发送的PDCH。

公开(公告)号：US09420605B2

公开(公告)日：2016-08-16

申请号：US13891939

申请日：2013-05-10

申请人： BlackBerry Limited

发明人： Chandra Sekhar Bontu ,  Yi Song ,  Zhijun Cai

IPC分类号： H04W36/00 ,  H04W72/12

CPC分类号： H04W72/1289

摘要： There is provided a method and apparatus for coordinating cells in a heterogeneous network. A serving cell determines scheduling parameters for scheduling a UE intermittently between a serving cell and at least one coordinating cell. The scheduling parameters define a cycle for the UE in which the UE alternates between listening to the serving cell and each of the coordinating cells. Timing offsets between the serving cell and the coordinating cells is determined by a UE and reported back to the eNB of the serving cell.

摘要翻译： 提供了用于协调异构网络中的小区的方法和装置。 服务小区确定在服务小区与至少一个协调小区之间间歇地调度UE的调度参数。 调度参数定义UE的周期，其中UE在监听服务小区和每个协调小区之间交替。 服务小区和协调小区之间的定时偏移由UE确定并向服务小区的eNB报告。

公开(公告)号：US09369253B2

公开(公告)日：2016-06-14

申请号：US13773408

申请日：2013-02-21

申请人： BlackBerry Limited

发明人： Vahid Pourahmadi ,  Hua Xu ,  Siva Dharshan Muruganathan ,  Yongkang Jia ,  Shiwei Gao ,  Yi Song ,  Robert Mark Harrsion

IPC分类号： H04W72/08 ,  H04L5/00 ,  H04L27/26 ,  H04L25/02 ,  H04J13/18 ,  H04J11/00

CPC分类号： H04L5/0053 ,  H04J11/00 ,  H04J13/18 ,  H04L5/0007 ,  H04L5/0051 ,  H04L25/0226 ,  H04L27/2613

摘要： A method for communication in a wireless communications network is provided. The method comprises: transmitting, by a network element in a first cell, a first DMRS on a first DMRS port; transmitting, by the network element, a first PDSCH on the first DMRS port; and transmitting, by the network, information indicating that the first DMRS port is used to transmit the first PDSCH, and information about a second DMRS port that is not used to transmit the first PDSCH but is used to transmit a second DMRS, wherein the first DMRS and the second DMRS are orthogonal to one another.

摘要翻译： 提供了一种在无线通信网络中进行通信的方法。 该方法包括：由第一小区中的网元发送第一DMRS端口上的第一DMRS; 由网元发送第一DMRS端口上的第一PDSCH; 并且由所述网络发送指示所述第一DMRS端口用于发送所述第一PDSCH的信息以及关于不用于发送所述第一PDSCH但是用于发送第二DMRS的第二DMRS端口的信息，其中，所述第一 DMRS和第二个DMRS彼此正交。

公开(公告)号：US20160081071A1

公开(公告)日：2016-03-17

申请号：US14875446

申请日：2015-10-05

申请人： BlackBerry Limited

发明人： Yi Song ,  Chandra Sekhar Bontu ,  Zhijun Cai

IPC分类号： H04W72/04 ,  H04W72/12 ,  H04L5/00 ,  H04L5/14

CPC分类号： H04W72/14 ,  H04L1/00 ,  H04L1/0016 ,  H04L1/0026 ,  H04L1/0077 ,  H04L1/1621 ,  H04L5/001 ,  H04L5/0035 ,  H04L5/0044 ,  H04L5/0069 ,  H04L5/0073 ,  H04L5/14 ,  H04L5/1469 ,  H04W28/0278 ,  H04W52/0206 ,  H04W72/04 ,  H04W72/0406 ,  H04W72/0413 ,  H04W72/12 ,  H04W72/1268 ,  H04W72/1273 ,  H04W84/045 ,  H04W84/12 ,  H04W88/08 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/21 ,  Y02D70/23 ,  Y02D70/24

摘要： A method is provided for communication in a wireless telecommunication network. The method comprises providing, by a network element, one of an uplink grant or a downlink grant to at least one UE that the network element has determined, based on information received from a plurality of UEs, is closer to the network element than is another UE, wherein the uplink grant is scheduled such that the UE transmits to the network element only during at least one flexible subframe, and wherein the downlink grant is scheduled such that the network element transmits to the UE only during at least one flexible subframe. The method further comprises transmitting, by the network element, to at least one UE that the network element has determined, based on information received from a plurality of UEs, is closer to the network element than is another UE, only during at least one flexible subframe.

摘要翻译： 提供了一种用于无线电信网络中的通信的方法。 该方法包括：基于从多个UE接收到的信息，网络元件向网络元件确定的至少一个UE提供上行链路授权或下行链路许可中的一个，比另一个更接近网络元件 UE，其中上行链路许可被调度使得UE仅在至少一个灵活的子帧期间传输到网络单元，并且其中调度所述下行链路许可，使得所述网络单元仅在至少一个灵活的子帧期间传送到所述UE。 所述方法还包括：仅当在至少一个灵活的情况下，所述网络单元基于从多个UE接收到的信息，比所述网元更接近所述网络元件，确定所述网络元件已经确定的至少一个UE 子帧。

公开(公告)号：US09155077B2

公开(公告)日：2015-10-06

申请号：US13842550

申请日：2013-03-15

申请人： BlackBerry Limited

发明人： Yi Song ,  Chandra Sekhar Bontu ,  Zhijun Cai

IPC分类号： H04J3/00 ,  H04W72/04 ,  H04L1/00 ,  H04W52/02 ,  H04W88/08 ,  H04W72/12 ,  H04W84/04 ,  H04W84/12 ,  H04L5/00 ,  H04L5/14

CPC分类号： H04W72/14 ,  H04L1/00 ,  H04L1/0016 ,  H04L1/0026 ,  H04L1/0077 ,  H04L1/1621 ,  H04L5/001 ,  H04L5/0035 ,  H04L5/0044 ,  H04L5/0069 ,  H04L5/0073 ,  H04L5/14 ,  H04L5/1469 ,  H04W28/0278 ,  H04W52/0206 ,  H04W72/04 ,  H04W72/0406 ,  H04W72/0413 ,  H04W72/12 ,  H04W72/1268 ,  H04W72/1273 ,  H04W84/045 ,  H04W84/12 ,  H04W88/08 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/21 ,  Y02D70/23 ,  Y02D70/24

摘要： A method is provided for communication in a wireless telecommunication network. The method comprises providing, by a network element, one of an uplink grant or a downlink grant to at least one UE that the network element has determined, based on information received from a plurality of UEs, is closer to the network element than is another UE, wherein the uplink grant is scheduled such that the UE transmits to the network element only during at least one flexible subframe, and wherein the downlink grant is scheduled such that the network element transmits to the UE only during at least one flexible subframe. The method further comprises transmitting, by the network element, to at least one UE that the network element has determined, based on information received from a plurality of UEs, is closer to the network element than is another UE, only during at least one flexible subframe.

摘要翻译： 提供了一种用于无线电信网络中的通信的方法。 该方法包括：基于从多个UE接收到的信息，网络元件向网络元件确定的至少一个UE提供上行链路授权或下行链路许可中的一个，比另一个更接近网络元件 UE，其中上行链路许可被调度使得UE仅在至少一个灵活的子帧期间传输到网络单元，并且其中调度所述下行链路许可，使得所述网络单元仅在至少一个灵活的子帧期间传送到所述UE。 所述方法还包括：仅当在至少一个灵活的情况下，所述网络单元基于从多个UE接收到的信息，比所述网元更接近所述网络元件，确定所述网络元件已经确定的至少一个UE 子帧。

公开(公告)号：US20150071183A1

公开(公告)日：2015-03-12

申请号：US14022915

申请日：2013-09-10

申请人： BlackBerry Limited

发明人： Chandra Sekhar Bontu ,  Yi Song ,  Zhijun Cai

IPC分类号： H04W72/08

CPC分类号： H04L1/00 ,  H04L1/1861 ,  H04L5/0023 ,  H04L5/0053

摘要： A system and method may provide user equipment (UE)-implemented inter-cell interference mitigation. In some implementations, a method in a user equipment for Hybrid Automatic Repeat Request (HARQ) indicator determination includes separating received Physical HARQ Indicator Channel (PHICH) modulation symbols into two data streams: (1) PHICH modulation symbols including interference from Cell-specific Reference Symbol (CRS) transmissions, and (2) PHICH modulation symbols including substantially no interference from the CRS transmissions. The UE separately evaluates the PHICH modulation symbols including interference and the PHICH modulation symbols including substantially no interference. The UE determines a Hybrid ARQ indicator based upon a combination of the separate evaluations of the PHICH modulation symbols including interference and the PHICH modulation symbols including substantially no interference.

摘要翻译： 系统和方法可以提供用户设备（UE）实现的小区间干扰减轻。 在一些实现中，用于混合自动重复请求（HARQ）指示符确定的用户设备中的方法包括将接收到的物理HARQ指示符信道（PHICH）调制符号分离成两个数据流：（1）PHICH调制符号，包括来自小区特定参考 符号（CRS）传输，以及（2）PHICH调制符号，其基本上不包括来自CRS传输的干扰。 UE分别评估包括干扰的PHICH调制符号和基本上不干扰的PHICH调制符号。 UE基于包括干扰的PHICH调制符号和包括基本上没有干扰的PHICH调制符号的单独评估的组合来确定混合ARQ指示符。