公开(公告)号：US20160345249A1

公开(公告)日：2016-11-24

申请号：US15143821

申请日：2016-05-02

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Hao Xu ,  Durga Prasad Malladi ,  Yongbin Wei ,  Siddhartha Mallik ,  Jing Sun ,  Madhavan Srinivasan Vajapeyam ,  Jun Wang ,  Tao Luo ,  Xiaoxia Zhang ,  Wanshi Chen ,  Aleksandar Damnjanovic

IPC: H04W48/16 ,  H04W16/14 ,  H04L5/00 ,  H04W74/08 ,  H04W4/06 ,  H04W76/02

CPC classification number: H04W48/16 ,  H04L5/001 ,  H04W4/06 ,  H04W16/14 ,  H04W74/0808 ,  H04W76/10

Abstract: Techniques are described for wireless communication. One method for wireless communication at a base station includes contending for access to a shared channel of a shared radio frequency spectrum band, and multiplexing first component carrier (CC) communication windows and second CC communication windows in the shared channel. A duration of orthogonal frequency domain multiplexed (OFDM) symbols of the first CC communication windows may be different from a duration of OFDM symbols of the second CC communication windows, and the multiplexing may occur on the shared channel upon winning contention for access to the shared channel. One method for wireless communication at a user equipment (UE) includes monitoring a shared channel of a shared radio frequency spectrum band for a first CC Listen Before Talk (LBT) frame, and receiving, in a second CC preamble, an indication of the first CC LBT frame.

Abstract translation: 技术描述为无线通信。 一种用于在基站进行无线通信的方法包括竞争对共享射频频带的共享信道的访问，以及在共享信道中复用第一分量载波（CC）通信窗口和第二CC通信窗口。 第一CC通信窗口的正交频域多路复用（OFDM）符号的持续时间可以不同于第二CC通信窗口的OFDM符号的持续时间，并且在获得争用访问共享信道时在共享信道上可能发生复用 渠道。 在用户设备（UE）的无线通信的一种方法包括：监视用于第一CC在线聆听（LBT）帧的共享射频频带的共享信道，并且在第二CC前导码中接收第一CC CC LBT框架。

公开(公告)号：US20160330630A1

公开(公告)日：2016-11-10

申请号：US15141398

申请日：2016-04-28

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Siddhartha Mallik ,  Xiaoxia Zhang ,  Jing Sun ,  Arumugam Chendamarai Kannan

IPC: H04W16/14 ,  H04W72/04 ,  H04W72/08 ,  H04L1/00 ,  H04W48/16 ,  H04W24/10 ,  H04L5/00 ,  H04W72/12

CPC classification number: H04W16/14 ,  H04L1/0003 ,  H04L1/16 ,  H04L1/1861 ,  H04L5/0033 ,  H04L5/0048 ,  H04L5/0055 ,  H04L5/0057 ,  H04L5/0073 ,  H04W24/10 ,  H04W48/16 ,  H04W72/0453 ,  H04W72/085 ,  H04W72/1284

Abstract: Methods, systems, and devices are described for wireless communication. A device may use enhanced reporting mechanisms to support control information reporting on shared spectrum. In some cases, a device may utilize enhanced component carriers (eCCs) for data transmissions. In one example, the device may transmit control information (e.g., ACK/NACK, CSI, etc.) to a corresponding device using a CCA exempt transmission (CET). In another example, a device may report control information quasi-periodically. For instance, a device may be assigned a specified interval and a control feedback window for reporting control information (e.g., CSI). The window may provide a duration prior and subsequent to the specified interval during which a UE may transmit control information. For example, the device may perform a CCA reserving the channel for a duration that does not include the specified interval but may transmit feedback information based on determining the specified interval falls within the assigned window.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 设备可以使用增强的报告机制来支持关于共享频谱的控制信息报告。 在一些情况下，设备可以利用增强的分量载波（eCC）进行数据传输。 在一个示例中，设备可以使用CCA豁免传输（CET）向对应的设备发送控制信息（例如，ACK / NACK，CSI等）。 在另一示例中，设备可以准周期性地报告控制信息。 例如，可以向设备分配指定的间隔和用于报告控制信息（例如，CSI）的控制反馈窗口。 窗口可以在UE可以发送控制信息的指定间隔之前和之后提供持续时间。 例如，设备可以执行CCA在不包括指定间隔的持续时间内保留该信道，但是可以基于确定指定的间隔落入分配的窗口内来发送反馈信息。

公开(公告)号：US09426673B2

公开(公告)日：2016-08-23

申请号：US13953531

申请日：2013-07-29

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Tao Luo ,  Peter Gaal ,  Hao Xu ,  Taesang Yoo ,  Durga Prasad Malladi ,  Yongbin Wei

IPC: H04W24/02 ,  H04W16/00 ,  H04W28/18

CPC classification number: H04W24/02 ,  H04W16/00 ,  H04W28/18

Abstract: In some aspects, a method for performing wireless communication includes configuring a set of virtual cells for user equipments (UEs). One or more virtual cells of the set is associated with at least one set of parameters. The method also includes transmitting information, to the UEs, regarding the set of the virtual cells, and operating, for a same virtual cell, according to a same set of parameters for some or all of the UEs. In other aspects, a method for performing wireless communications includes receiving, from a node, information regarding, for a UE, a set of virtual cells associated with a set of parameters. The method also includes communicating with the node. The communication is based on a virtual cell and its associated set of parameters.

Abstract translation: 在一些方面，用于执行无线通信的方法包括配置用户设备（UE）的一组虚拟小区。 该组的一个或多个虚拟单元与至少一组参数相关联。 该方法还包括向UE发送关于该虚拟小区的信息的信息，并且针对相同的虚拟小区根据针对一些或所有UE的相同参数集来操作信息。 在其他方面，用于执行无线通信的方法包括：从节点接收关于UE的与一组参数相关联的一组虚拟小区的信息。 该方法还包括与节点通信。 该通信基于虚拟单元及其相关的一组参数。

公开(公告)号：US09425915B2

公开(公告)日：2016-08-23

申请号：US14248076

申请日：2014-04-08

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Tao Luo ,  Lu Zhao

IPC: H04B15/00 ,  H04J3/10 ,  H04L5/00 ,  H04J11/00 ,  H04L25/02 ,  H04W24/10

CPC classification number: H04L27/2691 ,  H04B15/00 ,  H04B17/345 ,  H04J3/10 ,  H04J11/0056 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/0062 ,  H04L5/0073 ,  H04L25/0204 ,  H04L25/0224 ,  H04L27/2695 ,  H04W16/32 ,  H04W24/10

Abstract: A method to enhance coverage and/or throughput in a heterogeneous wireless network includes detecting interference between a neighboring cell and a serving cell. The method also includes cancelling the interference using an adaptive technique based on whether the interference has colliding Common Reference Signal (CRS) tones or whether the interference has colliding Dedicated Reference Signal (DRS) tones.

Abstract translation: 增强异构无线网络中的覆盖和/或吞吐量的方法包括检测相邻小区与服务小区之间的干扰。 该方法还包括基于干扰是否具有冲突的公共参考信号（CRS）音调或者干扰是否具有冲突的专用参考信号（DRS）音调的自适应技术来消除干扰。

公开(公告)号：US20160227541A1

公开(公告)日：2016-08-04

申请号：US15009113

申请日：2016-01-28

Applicant: QUALCOMM Incorporated

Inventor： Jelena Damnjanovic ,  Peter Gaal ,  Aleksandar Damnjanovic ,  Wanshi Chen ,  Madhavan Srinivasan Vajapeyam ,  Jing Sun ,  Tao Luo ,  Taesang Yoo ,  Hao Xu ,  Yongbin Wei

IPC: H04W72/04

CPC classification number: H04W72/0453 ,  H04L5/001 ,  H04L5/0091 ,  H04W72/042

Abstract: Methods, systems, and devices for wireless communication are described. Wireless devices may use enhanced carrier aggregation (eCA) to increase the throughput of a communications link, and control schemes for reducing signaling overhead may be employed to support eCA operation. For instance, downlink control information (DCI) supporting resource grants on a plurality of component carriers (CC) may be provided. These joint grants of resources may be used in addition to individual resource grants. A resource allocation granularity associated with the joint grant of resources may be based on the number of CCs scheduled by a resource grant message. The resource allocation granularity may be a function of whether uplink or downlink CCs are scheduled, and it may be determined based on a location of or channel associated with the resource grant message. A receiving device may identify allocated resources based on the scheduled CCs and resource allocation granularity.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 无线设备可以使用增强的载波聚合（eCA）来增加通信链路的吞吐量，并且可以采用用于减少信令开销的控制方案来支持eCA操作。 例如，可以提供在多个分量载波（CC）上支持资源准许的下行链路控制信息（DCI）。 除个人资源补助之外，可以使用这些联合资源赠款。 与资源的联合授予相关联的资源分配粒度可以基于由资源准许消息调度的CC的数量。 资源分配粒度可以是上行链路或下行链路CC是否被调度的功能，并且可以基于与资源准许消息相关联的位置或信道来确定。 接收设备可以基于所调度的CC和资源分配粒度来识别所分配的资源。

公开(公告)号：US20160119948A1

公开(公告)日：2016-04-28

申请号：US14869152

申请日：2015-09-29

Applicant: QUALCOMM Incorporated

Inventor： Jelena Damnjanovic ,  Taesang Yoo ,  Siddhartha Mallik ,  Aleksandar Damnjanovic ,  Arumugam Chendamarai Kannan ,  Madhavan Srinivasan Vajapeyam ,  Durga Prasad Malladi ,  Yongbin Wei ,  Tao Luo

IPC: H04W72/12 ,  H04L1/18 ,  H04L5/14

CPC classification number: H04W72/1294 ,  H04L1/1812 ,  H04L5/0044 ,  H04L5/0055 ,  H04L5/0094 ,  H04L5/14 ,  H04W72/1289 ,  H04W72/14

Abstract: Methods, systems, and devices for wireless communication are described. A base station may employ a multiplexing configuration based on latency and efficiency considerations. The base station may transmit a resource grant, a signal indicating the length of a downlink (DL) transmission time interval (TTI), and a signal indicating the length of a subsequent uplink (UL) TTI to one or more user equipment (UEs). The base station may dynamically select a new multiplexing configuration by, for example, setting the length of an UL TTI to zero or assigning multiple UEs resources in the same DL TTI. Latency may also be reduced by employing block feedback, such as block hybrid automatic repeat request (HARQ) feedback. A UE may determine and transmit HARQ feedback for each transport block (TB) of a set of TBs, which may be based on a time duration of a downlink TTI.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 基站可以采用基于延迟和效率考虑的复用配置。 基站可以向一个或多个用户设备（UE）发送资源许可，指示下行链路（DL）传输时间间隔（TTI）的长度的信号以及指示后续上行链路（UL）TTI的长度的信号， 。 基站可以通过例如将UL TTI的长度设置为零或者在相同的DL TTI中分配多个UE资源来动态地选择新的复用配置。 还可以通过采用块反馈来减少延迟，诸如块混合自动重传请求（HARQ）反馈。 UE可以为一组TB的每个传输块（TB）确定和发送HARQ反馈，其可以基于下行链路TTI的持续时间。

公开(公告)号：US20160119920A1

公开(公告)日：2016-04-28

申请号：US14862997

申请日：2015-09-23

Applicant: QUALCOMM Incorporated

Inventor： Siddhartha Mallik ,  Taesang Yoo ,  Jelena Damnjanovic ,  Aleksandar Damnjanovic ,  Arumugam Chendamarai Kannan ,  Yongbin Wei ,  Durga Prasad Malladi

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/14

CPC classification number: H04W72/0446 ,  H04L5/001 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0094 ,  H04W72/0406 ,  H04W72/14

Abstract: Various aspects described herein relate to communicating using dynamic uplink and downlink transmission time interval (TTI) switching in a wireless network. A notification can be received from a network entity of switching a configurable TTI from downlink communications to uplink communications. The configurable TTI can be one of a plurality of TTIs in a frame structure that allows dynamic switching of configurable TTIs between downlink and uplink communications within a frame. Additionally, uplink communications can be transmitted to the network entity during the configurable TTI based at least in part on the notification.

Abstract translation: 本文描述的各个方面涉及使用无线网络中的动态上行链路和下行链路传输时间间隔（TTI）切换进行通信。 可以从网络实体接收到将可配置TTI从下行链路通信切换到上行链路通信的通知。 可配置TTI可以是帧结构中的多个TTI之一，其允许在帧内的下行链路和上行链路通信之间的可配置TTI的动态切换。 此外，至少部分地基于通知，可以在可配置TTI期间将上行链路通信发送到网络实体。

公开(公告)号：US20160072649A1

公开(公告)日：2016-03-10

申请号：US14849563

申请日：2015-09-09

Applicant: QUALCOMM Incorporated

Inventor： Sheng-Yuan TU ,  Farrokh Abrishamkar ,  Brian Clarke Banister ,  Roberto Rimini ,  lnsung Kang ,  Taesang Yoo

IPC: H04L25/03 ,  H04B1/7107

CPC classification number: G06N3/04 ,  G05B13/027 ,  G06N3/08 ,  H04B1/1036 ,  H04B1/1081 ,  H04B1/123 ,  H04B1/406 ,  H04B1/525 ,  H04B1/7107 ,  H04L25/03159 ,  H04W88/06

Abstract: The various embodiments include methods and apparatuses for cancelling nonlinear interference during concurrent communication of multi-technology wireless communication devices. Nonlinear interference may be estimated using a minimum mean squares interference filter by generating aggressor kernels from the aggressor signals, augmenting the aggressor kernels by weight factors and executing a linear combination of the augmented output, at an intermediate layer to produce intermediate layer outputs. At an output layer, a linear filter function may be executed on the intermediate layer outputs to produce an estimated nonlinear interference used to cancel the nonlinear interference of a victim signal.

Abstract translation: 各种实施例包括用于在多技术无线通信设备的并发通信期间消除非线性干扰的方法和装置。 可以使用最小均方干扰滤波器通过从侵略者信号产生攻击者内核来估计非线性干扰，通过权重因子增加侵略者内核并在中间层处执行增强输出的线性组合以产生中间层输出。 在输出层，可以对中间层输出执行线性滤波函数，以产生用于消除受害信号的非线性干扰的估计的非线性干扰。

公开(公告)号：US09100231B2

公开(公告)日：2015-08-04

申请号：US13666325

申请日：2012-11-01

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Tao Luo ,  Hendrik Schoeneich ,  Myriam Rajih ,  Lu Zhao

IPC: H04B15/00 ,  H04L25/03 ,  H04J11/00 ,  H04L1/00

CPC classification number: H04L25/0328 ,  H04J11/0056 ,  H04L1/0048 ,  H04L25/03305

Abstract: Certain aspects of the present disclosure relate to a hybrid approach for Physical Downlink Shared Channel (PDSCH) Interference Cancellation (IC). In certain aspects, if the PDSCH information is known for a serving cell but not be known for interfering cell(s), a hybrid approach that involves using Codeword-level IC (CWIC) for the serving cell and using Symbol-level IC (SLIC) for the interfering cells may be used for better IC performance. The hybrid IC approach may start with a UE attempting to decode the serving cell PDSCH. If the decode is unsuccessful, the UE may perform CWIC for the serving cell followed by SLIC using the results of the CWIC stage. After the SLIC stage, the UE may attempt to decode the serving cell PDSCH again. The UE may perform multiple operations of this method until the serving cell PDSCH is successfully decoded or a maximum number of iterations is reached.

Abstract translation: 本公开的某些方面涉及物理下行链路共享信道（PDSCH）干扰消除（IC）的混合方法。 在某些方面，如果PDSCH信息对于服务小区而言是已知的，但对于干扰小区而言是不知道的，则涉及使用码流级IC（CWIC）用于服务小区并使用符号级IC（SLIC ）可用于更好的IC性能。 混合IC方法可以从尝试对服务小区PDSCH进行解码的UE开始。 如果解码不成功，则UE可以使用CWIC级的结果为服务小区后跟SLIC执行CWIC。 在SLIC阶段之后，UE可以尝试再次对服务小区PDSCH进行解码。 UE可以执行该方法的多个操作，直到服务小区PDSCH成功解码或达到最大次数。

公开(公告)号：US09100150B2

公开(公告)日：2015-08-04

申请号：US13943364

申请日：2013-07-16

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Tao Luo

IPC: H04B1/00 ,  H04L5/00 ,  H04B15/00 ,  H04B1/7097 ,  H04J11/00 ,  H04L27/26 ,  H04W24/02 ,  H04W72/08

CPC classification number: H04L5/0032 ,  H04B1/7097 ,  H04B15/00 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04J11/005 ,  H04J11/0069 ,  H04L5/0048 ,  H04L27/2657 ,  H04L27/2662 ,  H04W24/02 ,  H04W72/082

Abstract: Obtaining a timing reference in wireless communication is facilitated when desiring to communicate with a weak serving base station (such as an evolved NodeB) in the presence of a stronger interfering base station. The user equipment (UE) may track a stronger interfering base station's timing, or the UE may track a timing that is derived by a composite power delay profile (PDP) from multiple base stations. The composite PDP may be constructed by adjusting individual base station PDPs according to a weighting scheme. The timing obtained in such a manner may be used for estimation of the channel of the interfering base station and cancelling interfering signals from the base station. It may also be used to estimate the channel of the serving base station after adding a backoff. The UE may track a stronger interfering base station's frequency, or the UE may track a composite frequency.

Abstract translation: 当在较强的干扰基站的存在下希望与弱服务基站（诸如演进的节点B）进行通信时，便于获得无线通信中的定时参考。 用户设备（UE）可以跟踪更强的干扰基站的定时，或者UE可以跟踪由多个基站由复合功率延迟分布（PDP）导出的定时。 可以通过根据加权方案调整各个基站PDP来构成复合PDP。 以这种方式获得的定时可以用于干扰基站的信道的估计和从基站的抵消干扰信号。 也可以用于在添加退避后估计服务基站的信道。 UE可以跟踪更强的干扰基站的频率，或者UE可以跟踪复合频率。