公开(公告)号：US20120201152A1

公开(公告)日：2012-08-09

申请号：US13196711

申请日：2011-08-02

申请人： Taesang Yoo ,  Tao Luo ,  Yongbin Wei ,  Siddhartha Mallik

发明人： Taesang Yoo ,  Tao Luo ,  Yongbin Wei ,  Siddhartha Mallik

IPC分类号： H04W24/00

CPC分类号： H04B17/345

摘要： Interference on pilot signals and on data tones can be mismatched. Different types of interference estimates perform differently based on how the mismatch occurs. The resulting interference estimate may thus be inaccurate. Interference estimates based on pilot signals and also on data tones can both be evaluated for reliability. The more reliable of the two can then be selected. If the data tones estimate is selected, the estimate can be calculated from covariance matrices or from traffic-to-pilot ratios.

摘要翻译： 对导频信号和数据音调的干扰可能不匹配。 基于不匹配的发生情况，不同类型的干扰估计可以不同地执行。 所得到的干扰估计可能是不准确的。 可以对可靠性进行评估，基于导频信号和数据音调的干扰估计。 然后可以选择更可靠的两个。 如果选择数据音调估计，则可以从协方差矩阵或从业务到导频比来计算估计。

公开(公告)号：US20120190391A1

公开(公告)日：2012-07-26

申请号：US13190308

申请日：2011-07-25

申请人： Taesang Yoo ,  Tao Luo ,  Tingfang Ji

发明人： Taesang Yoo ,  Tao Luo ,  Tingfang Ji

IPC分类号： H04B15/00 ,  H04W24/00

CPC分类号： H04J11/005 ,  H04B15/00 ,  H04L25/03891

摘要： A method of wireless communication includes receiving physical layer signaling from a serving eNodeB in a wireless network. Interference estimation, interference cancellation and/or spatial equalization of user equipment is controlled in accordance with the received signaling.

摘要翻译： 无线通信的方法包括从无线网络中的服务eNodeB接收物理层信令。 根据接收的信令控制用户设备的干扰估计，干扰消除和/或空间均衡。

公开(公告)号：US20120087261A1

公开(公告)日：2012-04-12

申请号：US13251990

申请日：2011-10-03

申请人： Taesang Yoo ,  Tao Luo ,  Siddhartha Mallik ,  Aleksandar Damnjanovic ,  Juan Montojo

发明人： Taesang Yoo ,  Tao Luo ,  Siddhartha Mallik ,  Aleksandar Damnjanovic ,  Juan Montojo

IPC分类号： H04W24/02 ,  H04B15/00

CPC分类号： H04L25/03

摘要： Communication in a dominant interference scenario may be supported by performing inter-cell interference coordination (ICIC). Resource coordination/partitioning may be performed to allocate resources to a serving Node B located near the vicinity of a strong interfering Node B. The interfering Node B may avoid transmitting on the allocated/protected resources, possibly except for a common reference signal (CRS). A UE can then communicate with the serving Node B on the protected resources in the presence of the interfering Node B and may observe no interference (possibly except for the CRS) from the interfering Node B. When CRS tones of an interferer may collide with control/data tones of a serving cell, CRS interference cancellation (CRS IC) or puncturing of interfered resource elements (REs) may be appropriate. Certain aspects of the present disclosure provide techniques, where the UE may dynamically switch between CRS IC and RE puncturing based on certain parameters.

摘要翻译： 可以通过执行小区间干扰协调（ICIC）来支持主要干扰场景中的通信。 可以执行资源协调/分区以向位于强干扰节点B附近的服务节点B分配资源。干扰节点B可以避免在所分配/受保护的资源上发送，可能除了公共参考信号（CRS） 。 然后，UE可以在干扰节点B存在的情况下与被保护资源上的服务节点B进行通信，并且可以观察到来自干扰节点B的干扰（可能除了CRS之外）。当干扰源的CRS音调可能与控制相冲突时 /服务小区的数据音调，CRS干扰消除（CRS IC）或干扰的资源元素（RE）的穿孔可能是适当的。 本公开的某些方面提供技术，其中UE可以基于某些参数在CRS IC和RE穿孔之间动态切换。

公开(公告)号：US20110256861A1

公开(公告)日：2011-10-20

申请号：US13084806

申请日：2011-04-12

申请人： Taesang Yoo ,  Tao Luo ,  Xiliang Luo

发明人： Taesang Yoo ,  Tao Luo ,  Xiliang Luo

IPC分类号： H04W24/00

CPC分类号： H04W24/08 ,  H04B17/318 ,  H04B17/327 ,  H04B17/382 ,  H04L5/005 ,  H04L5/0094 ,  H04L25/02 ,  H04W24/00 ,  H04W72/04 ,  H04W72/042

摘要： A method for communicating in an advanced long term evolution (LTE-A) network using common reference signal (CRS) resources associated with different interference levels due to resource partitioning is disclosed. Signals are received from an eNodeB indicating a subset of CRS resources for radio link monitoring (RLM) and/or reference signal received power (RSRP) measuring. The subset of CRS resources includes the CRS resources expected to have lower interference from the interfering eNodeBs. RLM and/or RSRP measurements are performed based on the indicated subset.

摘要翻译： 公开了一种使用由于资源划分引起的与不同干扰电平相关联的共同参考信号（CRS）资源在高级长期演进（LTE-A）网络中进行通信的方法。 从指示用于无线电链路监视（RLM）和/或参考信号接收功率（RSRP）测量的CRS资源的子集的eNodeB接收信号。 CRS资源的子集包括预期来自干扰eNodeB的较低干扰的CRS资源。 基于所指示的子集执行RLM和/或RSRP测量。

公开(公告)号：US10200166B2

公开(公告)日：2019-02-05

申请号：US13351156

申请日：2012-01-16

申请人： Wanshi Chen ,  Kapil Bhattad ,  Peter Gaal ,  Tao Luo ,  Xiaoxia Zhang

发明人： Wanshi Chen ,  Kapil Bhattad ,  Peter Gaal ,  Tao Luo ,  Xiaoxia Zhang

IPC分类号： H04L5/00

摘要： Certain aspects of the present disclosure relate to techniques for determining resource elements REs used for Coordinated Multipoint (CoMP) transmission schemes. The techniques generally include determining, by a User Equipment (UE), a set of data REs used for Coordinated Multipoint (CoMP) operation. The determination is based on a CoMP scheme and data REs available to particular base stations involved in the CoMP operation. The technique further includes processing data received via the CoMP operation on the determined set of data REs.

公开(公告)号：US09750030B2

公开(公告)日：2017-08-29

申请号：US13197412

申请日：2011-08-03

申请人： Alan Barbieri ,  Vikas Jain ,  Muruganandam Jayabalan ,  Tao Luo ,  Saikiran Nudurupati ,  Fang Chen

发明人： Alan Barbieri ,  Vikas Jain ,  Muruganandam Jayabalan ,  Tao Luo ,  Saikiran Nudurupati ,  Fang Chen

IPC分类号： H04W72/04 ,  H04L1/00 ,  H04L5/00 ,  H04L1/18 ,  H04L1/20

CPC分类号： H04W72/048 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/0026 ,  H04L1/0031 ,  H04L1/0086 ,  H04L1/1812 ,  H04L1/203 ,  H04L5/0053 ,  H04L2001/0092

摘要： Downlink rate adaptation in wireless communication systems are disclosed in which a UE reports RIs for both interference-free and interference-limited subframes. In general, the RI for the interference-free subframes will be higher than the RI reported for the interference-limited subframes. However, an eNB selects an RI and a transmission rate for interference-limited subframes based on what the UE can sustain instead of based only on the RI reported by the UE.

公开(公告)号：US09609536B2

公开(公告)日：2017-03-28

申请号：US13085367

申请日：2011-04-12

申请人： Alan Barbieri ,  Tingfang Ji ,  Aleksandar Damnjanovic ,  Peter Gaal ,  Tao Luo

发明人： Alan Barbieri ,  Tingfang Ji ,  Aleksandar Damnjanovic ,  Peter Gaal ,  Tao Luo

IPC分类号： H04W28/04 ,  H04W24/10 ,  H04B17/318 ,  H04B17/327 ,  H04W16/14

CPC分类号： H04W24/10 ,  H04B17/318 ,  H04B17/327 ,  H04W16/14

摘要： Certain aspects of the present disclosure provide techniques and apparatuses for wireless communications. According to certain aspects, a set of protected resources, allocated to a base station of a first cell, that are protected by restricting transmissions of a second cell is determined and received power of a first reference signal from the base station in the set of resources is measured. According to certain aspects, a subset of one or more neighbor base stations that have reduced interference in a set of protected resources is determined and received power measurements for the subset of neighbor cells is excluded when calculating receive signal quality measurements for the subframe.

公开(公告)号：US09426703B2

公开(公告)日：2016-08-23

申请号：US13349073

申请日：2012-01-12

申请人： Stefan Geirhofer ,  Tingfang Ji ,  Peter Gaal ,  Aleksandar Damnjanovic ,  Juan Montojo ,  Tao Luo ,  Wanshi Chen ,  Kapil Bhattad

发明人： Stefan Geirhofer ,  Tingfang Ji ,  Peter Gaal ,  Aleksandar Damnjanovic ,  Juan Montojo ,  Tao Luo ,  Wanshi Chen ,  Kapil Bhattad

IPC分类号： H04W72/08 ,  H04W36/00 ,  H04L25/02 ,  H04L5/00

CPC分类号： H04W36/0077 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/0057 ,  H04L5/006 ,  H04L25/0226

摘要： A method, an apparatus, and a computer program product for wireless communication are provided for separating control transmissions and data transmissions within the coverage area of a plurality of transmission/reception points or points that are geographically displaced, the plurality of points comprising a macro node and a plurality of remote radio heads (RRHs) coupled to the macro node. Separating control transmissions and data transmissions in the macro node/RRH configuration may allow UEs to be associated with one set of transmission points for data transmissions and the same set or a different set of transmission points for common control signaling. Separating control transmissions and data transmissions may also allow for faster reconfiguration of antenna ports used for UE data transmission compared with reconfiguration via a handover process.

公开(公告)号：US09338031B2

公开(公告)日：2016-05-10

申请号：US12857195

申请日：2010-08-16

申请人： Xiaoxia Zhang ,  Durga Prasad Malladi ,  Yongbin Wei ,  Tao Luo ,  Hao Xu ,  Aleksandar Damnjanovic

发明人： Xiaoxia Zhang ,  Durga Prasad Malladi ,  Yongbin Wei ,  Tao Luo ,  Hao Xu ,  Aleksandar Damnjanovic

IPC分类号： H04W4/00 ,  H04L25/02 ,  H04B1/7107 ,  H04J11/00 ,  H04L5/00

CPC分类号： H04L25/0202 ,  H04B1/7107 ,  H04J11/004 ,  H04J11/0069 ,  H04J11/0093 ,  H04L5/0023 ,  H04L25/0224

摘要： A method, an apparatus, and a computer program product for receiving a signal including components from a plurality of cells, estimating a channel from the received signal using one or more channel estimation schemes, removing a component signal using the estimated channel from the received signal to generate a processed signal and detecting a residual signal in the processed signal.

摘要翻译： 一种用于从多个小区接收包括分量的信号的方法，装置和计算机程序产品，使用一个或多个信道估计方案从接收到的信号估计信道，使用来自接收信号的估计信道去除分量信号 以产生经处理的信号并检测处理信号中的残留信号。

公开(公告)号：US09179426B2

公开(公告)日：2015-11-03

申请号：US13101966

申请日：2011-05-05

申请人： Wanshi Chen ,  Tao Luo ,  Juan Montojo ,  Peter Gaal

发明人： Wanshi Chen ,  Tao Luo ,  Juan Montojo ,  Peter Gaal

IPC分类号： H04W52/00 ,  H04W52/42 ,  H04B7/04 ,  H04W52/14 ,  H04W52/26

CPC分类号： H04W52/42 ,  H04B7/0404 ,  H04B7/0413 ,  H04W52/146 ,  H04W52/262 ,  H04W52/267

摘要： A method of adjusting the modulation and coding scheme for uplink channel power control in advanced telecommunication networks includes receiving an indication of a power adjustment mode for an uplink multiple-input multiple-output (MIMO) transmission. The power of the uplink MIMO transmission is adjusted according to the received power adjustment mode.

摘要翻译： 调整高级电信网络中的上行链路信道功率控制的调制和编码方案的方法包括：接收上行链路多输入多输出（MIMO）传输的功率调整模式的指示。 上行MIMO传输的功率根据接收功率调整模式进行调整。