公开(公告)号：US20160065251A1

公开(公告)日：2016-03-03

申请号：US14470822

申请日：2014-08-27

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Roberto Rimini ,  Richard Neil Braithwaite ,  Jibing Wang

IPC: H04B1/04

Abstract: A method for wireless communication by a wireless communication device is described. The wireless communication device determines that an aggressor radio in the wireless communication device is causing (or can potentially cause) self-jamming to a victim radio in the wireless communication device. A precoding configuration is selected based on one or more link throughput metrics and one or more self-jamming metrics. The precoding configuration is applied to transmissions of the aggressor radio.

Abstract translation: 描述了一种由无线通信设备进行无线通信的方法。 无线通信设备确定无线通信设备中的侵略者无线电在无线通信设备中引起（或可能潜在地）对受害者无线电进行自身干扰。 基于一个或多个链路吞吐量度量和一个或多个自干扰度量来选择预编码配置。 预编码配置被应用于侵入者无线电的传输。

公开(公告)号：US09197264B1

公开(公告)日：2015-11-24

申请号：US14330558

申请日：2014-07-14

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Wooseok Nam ,  Roberto Rimini ,  Jibing Wang ,  Yongbin Wei ,  Muhammad Sayed Khairy Abdelghaffar ,  Joseph Patrick Burke

IPC: H04B1/10 ,  H04B7/04

CPC classification number: H04B7/0854 ,  H04B1/1027 ,  H04B7/0691

Abstract: Methods, systems, and devices are described for reducing interference for wireless communication in a wireless device with multiple receive antennas. In aspects for reducing interference, a combined signal may be generated by combining a plurality of received signals from a plurality of respective receive antennas of the wireless device, for example, using one or more different types of combining A common distortion of the plurality of received signals may be estimated based at least in part on the combined signal, and interference reduction may be performed on one or more of the plurality of received signals based at least in part on the estimated common distortion.

Abstract translation: 描述了用于减少具有多个接收天线的无线设备中的无线通信的干扰的方法，系统和设备。 在减少干扰的方面中，可以通过组合来自无线设备的多个相应接收天线的多个接收信号来生成组合信号，例如，使用一种或多种不同类型的组合。 可以至少部分地基于组合信号来估计信号，并且可以至少部分地基于所估计的共同失真来对多个接收信号中的一个或多个执行干扰减少。

公开(公告)号：US09014114B2

公开(公告)日：2015-04-21

申请号：US13678332

申请日：2012-11-15

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Tao Luo ,  Taesang Yoo ,  Xiliang Luo

IPC: H04W4/00 ,  H04L12/66 ,  H04W72/00 ,  H04W72/04 ,  H04L27/26 ,  H04L5/00

CPC classification number: H04W72/04 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0073 ,  H04L27/2655 ,  H04L27/2662 ,  H04L27/2672 ,  H04L27/2675

Abstract: Estimation of timing errors is disclosed that uses user equipment reference signals (UERSs). A UE models each channel in a user equipment reference signal (UERS) as a channel on an adjacent UERS tone multiplied by a phase ramping term. This phase ramping term is determined using an estimator on the modeled channels. The UE then determines the equivalent timing error by mapping the phase ramping terms into the estimated timing errors in the time domain. In coordinated multipoint (CoMP) systems, the UERS-based timing error may be used to identify an aligned common reference signal (CRS) associated with the network entity transmitting the data. With this determination, the UE may estimate a CRS-based timing error and either substitute the CRS-based timing error for the UERS-based timing error or calculate a further average timing error based on both the CRS-based and UERS-based timing errors.

Abstract translation: 公开了使用用户设备参考信号（UERS）的定时误差的估计。 UE将用户设备参考信号（UERS）中的每个信道建模为在相邻UERS音调乘以相位斜变项的信道。 该相位斜变项是使用建模通道上的估计器确定的。 然后，UE通过将相位斜变项映射到时域中的估计定时误差来确定等效定时误差。 在协调多点（CoMP）系统中，基于UERS的定时误差可以用于识别与发送数据的网络实体相关联的对准的公共参考信号（CRS）。 通过该确定，UE可以估计基于CRS的定时误差，并且基于用于基于UERS的定时误差替代基于CRS的定时误差，或者基于基于CRS和基于UERS的定时误差来计算另外的平均定时误差 。

公开(公告)号：US20150010099A1

公开(公告)日：2015-01-08

申请号：US14318122

申请日：2014-06-27

Applicant: QUALCOMM Incorporated

Inventor： Jamie Menjay Lin ,  Ashok Mantravadi ,  Francesco Negro ,  Petru Cristian Budianu ,  Taesang Yoo ,  Xiaoxia Zhang ,  Tao Luo

IPC: H04B7/04

CPC classification number: H04B7/0404 ,  H04B7/0608 ,  H04B7/0691 ,  H04B7/0802 ,  H04B7/0874

Abstract: Dynamic adjustment of antenna selection period at a wireless communication device or user equipment having two or more antennas. The described approaches consider an antenna selection performance metric. The antenna selection performance metric may include both measurement overhead (capacity loss due to measurements) and antenna switching capacity gain (gain in capacity through switching antenna subsets). The antenna selection performance metric may further include an estimate of UE speed or an antenna selection change rate. The antenna selection period may be adjusted by increasing or decreasing the antenna selection period based on the antenna selection performance metric. Antenna selection may be enabled or disabled based on the antenna selection performance metric.

Abstract translation: 具有两个或多个天线的无线通信设备或用户设备的天线选择周期的动态调整。 所描述的方法考虑天线选择性能度量。 天线选择性能度量可以包括测量开销（由测量引起的容量损失）和天线切换容量增益（通过开关天线子集的容量增益）。 天线选择性能度量还可以包括UE速度或天线选择变化率的估计。 可以通过基于天线选择性能度量来增加或减少天线选择周期来调整天线选择周期。 可以基于天线选择性能度量来启用或禁用天线选择。

公开(公告)号：US20140364136A1

公开(公告)日：2014-12-11

申请号：US14282992

申请日：2014-05-20

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Taesang Yoo

IPC: H04W72/08

CPC classification number: H04W72/085 ,  H04B7/022 ,  H04B7/0626 ,  H04B17/24 ,  H04L1/0026 ,  H04W52/281 ,  H04W52/40 ,  H04W72/082

Abstract: When enabled with common reference signal interference cancellation, a user equipment (UE) may still compute a channel state feedback value with consideration of any canceled interfering neighboring signals. When the neighboring cells are determined to be transmitting data during the time for which the channel state feedback value is being computed, the UE is able to derive the channel state feedback value considering those canceled interfering signals. The UE determines whether each neighboring cell is transmitting during the designated time either by obtaining signals that indicate the transmission schedule of the neighboring cells or by detecting the transmission schedule, such as based on the power class of the neighboring cells. If the UE determines that the neighboring cells are transmitting data during this time period, the UE will compute the channel state feedback value including consideration of the canceled interfering signals.

Abstract translation: 当使用公共参考信号干扰消除时，用户设备（UE）仍可以考虑任何取消的干扰相邻信号来计算信道状态反馈值。 当在正在计算信道状态反馈值的时间内确定相邻小区正在发送数据时，UE能够导出考虑到那些被消除的干扰信号的信道状态反馈值。 UE通过获得指示相邻小区的传输调度的信号或者通过基于相邻小区的功率等级来检测传输调度来确定在指定时间期间每个相邻小区是否正在发射。 如果UE在该时间段期间确定相邻小区正在发送数据，则UE将计算包括考虑被消除的干扰信号的信道状态反馈值。

公开(公告)号：US20140348019A1

公开(公告)日：2014-11-27

申请号：US14456916

申请日：2014-08-11

Applicant: QUALCOMM Incorporated

Inventor： Alan Barbieri ,  Parag Arun Agashe ,  Aleksandar Damnjanovic ,  Tingfang Ji ,  Tao Luo ,  Madhavan Srinivasan Vajapeyam ,  Yongbin Wei ,  Hao Xu ,  Taesang Yoo

IPC: H04L5/00 ,  H04W24/08

CPC classification number: H04L5/0057 ,  H04L1/0026 ,  H04L1/0028 ,  H04W24/00 ,  H04W24/08 ,  H04W28/16 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/23

Abstract: Techniques for estimating and reporting channel quality indicator (CQI) are disclosed. Neighboring base stations may cause strong interference to one another and may be allocated different resources, e.g., different subframes. A UE may observe different levels of interference on different resources. In an aspect, the UE may determine a CQI for resources allocated to a base station and having reduced or no interference from at least one interfering base station. In another aspect, the UE may determine multiple CQI for resources of different types and associated with different interference levels. For example, the UE may determine a first CQI based on at least one first subframe allocated to the base station and having reduced or no interference from the interfering base station(s). The UE may determine a second CQI based on at least one second subframe allocated to the interfering base station(s).

Abstract translation: 公开了用于估计和报告信道质量指示符（CQI）的技术。 相邻的基站可能导致彼此的强干扰，并且可以分配不同的资源，例如不同的子帧。 UE可以在不同的资源上观察不同级别的干扰。 在一方面，UE可以为分配给基站并且具有来自至少一个干扰基站的减少或没有干扰的资源确定CQI。 在另一方面，UE可以为不同类型的资源确定多个CQI并且与不同的干扰电平相关联。 例如，UE可以基于分配给基站的至少一个第一子帧并且具有来自干扰基站的减少或没有干扰来确定第一CQI。 UE可以基于分配给干扰基站的至少一个第二子帧来确定第二CQI。

公开(公告)号：US08862143B2

公开(公告)日：2014-10-14

申请号：US13914346

申请日：2013-06-10

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Taesang Yoo

IPC: H04W72/00 ,  H04W72/08 ,  H04W52/28 ,  H04B7/06 ,  H04L1/00 ,  H04B7/02 ,  H04B17/00 ,  H04W52/40

CPC classification number: H04W72/085 ,  H04B7/022 ,  H04B7/0626 ,  H04B17/24 ,  H04L1/0026 ,  H04W52/281 ,  H04W52/40 ,  H04W72/082

Abstract: When enabled with common reference signal interference cancelation, a user equipment (UE) may still compute a channel state feedback value with consideration of any canceled interfering neighboring signals. When the neighboring cells are determined to be transmitting data during the time for which the channel state feedback value is being computed, the UE is able to derive the channel state feedback value considering those canceled interfering signals. The UE determines whether each neighboring cell is transmitting during the designated time either by obtaining signals that indicate the transmission schedule of the neighboring cells or by detecting the transmission schedule, such as based on the power class of the neighboring cells. If the UE determines that the neighboring cells are transmitting data during this time period, the UE will compute the channel state feedback value including consideration of the canceled interfering signals.

Abstract translation: 当使用公共参考信号干扰消除时，用户设备（UE）仍可以考虑任何取消的干扰相邻信号来计算信道状态反馈值。 当在正在计算信道状态反馈值的时间内确定相邻小区正在发送数据时，UE能够导出考虑到那些被消除的干扰信号的信道状态反馈值。 UE通过获得指示相邻小区的传输调度的信号或者通过基于相邻小区的功率等级来检测传输调度来确定在指定时间期间每个相邻小区是否正在发射。 如果UE在该时间段期间确定相邻小区正在发送数据，则UE将计算包括考虑被消除的干扰信号的信道状态反馈值。

公开(公告)号：US08761785B2

公开(公告)日：2014-06-24

申请号：US13914346

申请日：2013-06-10

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Taesang Yoo

IPC: H04W72/00

Abstract: When enabled with common reference signal interference cancelation, a user equipment (UE) may still compute a channel state feedback value with consideration of any canceled interfering neighboring signals. When the neighboring cells are determined to be transmitting data during the time for which the channel state feedback value is being computed, the UE is able to derive the channel state feedback value considering those canceled interfering signals. The UE determines whether each neighboring cell is transmitting during the designated time either by obtaining signals that indicate the transmission schedule of the neighboring cells or by detecting the transmission schedule, such as based on the power class of the neighboring cells. If the UE determines that the neighboring cells are transmitting data during this time period, the UE will compute the channel state feedback value including consideration of the canceled interfering signals.

公开(公告)号：US20130128759A1

公开(公告)日：2013-05-23

申请号：US13713376

申请日：2012-12-13

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Taesang Yoo ,  Wanshi Chen ,  Peter Gaal ,  Yongbin Wei

IPC: H04W24/02

CPC classification number: H04W24/02 ,  H04L1/0026 ,  H04L1/06 ,  H04L25/03305 ,  H04L27/2647 ,  H04L2025/03426

Abstract: Techniques for computing and reporting channel quality indication (CQI) are described. In an aspect, a plurality of CQI computation methods may be supported, and each CQI computation method may indicate how CQI should be computed. One CQI computation method may be selected for use. CQI may then be computed and reported in accordance with the selected CQI computation method. In an exemplary design, a user equipment (UE) may obtain a selected method for computing CQI, which may be chosen based on the UE capability and/or other factors. The selected method may specify (i) CQI computation for a specific codeword among a plurality of codewords or (ii) CQI computation by averaging signal quality across a plurality of layers used for transmission. The UE may compute CQI in accordance with the selected method, send the CQI to a base station, and receive data sent by the base station based on the CQI.

Abstract translation: 描述了用于计算和报告信道质量指示（CQI）的技术。 在一个方面，可以支持多个CQI计算方法，并且每个CQI计算方法可以指示如何计算CQI。 可以选择一种CQI计算方法来使用。 然后可以根据所选择的CQI计算方法来计算和报告CQI。 在示例性设计中，用户设备（UE）可以获得用于计算CQI的所选择的方法，其可以基于UE能力和/或其他因素来选择。 所选择的方法可以指定（i）针对多个码字中的特定码字的CQI计算，或者（ii）通过用于传输的多个层平均信号质量的CQI计算。 UE可以根据所选择的方法计算CQI，向基站发送CQI，并且基于CQI接收由基站发送的数据。

公开(公告)号：US20130114455A1

公开(公告)日：2013-05-09

申请号：US13671404

申请日：2012-11-07

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Wanshi Chen ,  Tao Luo ,  Peter Gaal

IPC: H04W24/00

CPC classification number: H04W24/00 ,  H04L1/0026 ,  H04L1/0027 ,  H04W72/082 ,  H04W72/1247 ,  H04W88/02 ,  H04W88/08

Abstract: Collision handling of channel state information (CSI) reports is described for enhanced inter-cell interference coordination (eICIC), coordinated multipoint transmission (CoMP), and/or carrier aggregation (CA). Various aspects include prioritization schemes to resolve collisions between different CSI reporting sets in relation to the same component carrier (CC) used with transmission. Multiple stages of prioritization may identify CSI for a report based on various criteria. Tie breaker criteria may be defined for priority among CSI reports that changes for different subframes. In other aspects, PUSCH is utilized to transmit CSI for prioritized reporting sets in a subframe. In yet other aspects, if parallel PUCCH is supported, colliding CSI may be handled on a per PUCCH basis. Other aspects may allow for prioritizing periodic CSI within each of multiple CCs, and then prioritizing over different CCs to handle an interaction of CSI reports for CA, eICIC and/or CoMP.

Abstract translation: 描述了用于增强小区间干扰协调（eICIC），协同多点传输（CoMP）和/或载波聚合（CA）的信道状态信息（CSI）报告的冲突处理。 各方面包括优先化方案，以解决与传输使用的相同分量载波（CC）相关的不同CSI报告集之间的冲突。 基于各种标准的多个阶段的优先级可以识别报告的CSI。 可以针对CSI报告中针对不同子帧的更改的优先级定义断线器标准。 在其它方面，利用PUSCH在子帧中传送用于优先化报告集的CSI。 在其他方面，如果支持并行PUCCH，则可以在每个PUCCH的基础上处理冲突CSI。 其他方面可以允许在多个CC的每一个内对周期性CSI进行优先级排序，然后对不同的CC进行优先级排序以处理CA，eICIC和/或CoMP的CSI报告的交互。