公开(公告)号：US20170013479A1

公开(公告)日：2017-01-12

申请号：US15182273

申请日：2016-06-14

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Tao Luo ,  Xiaoxia Zhang ,  Taesang Yoo ,  Siddhartha Mallik

IPC: H04W24/02 ,  H04L27/26 ,  H04W28/04 ,  H04W24/08 ,  H04W74/06 ,  H04W28/02 ,  H04W74/00 ,  H04B7/06

CPC classification number: H04W24/02 ,  H04B7/0632 ,  H04L27/2601 ,  H04W24/08 ,  H04W28/0236 ,  H04W72/085 ,  H04W74/0808

Abstract: Channel clearance using a shared radio frequency spectrum band may be performed for both a base station and a user equipment (UE). A base station may perform a listen before talk (LBT) procedure and verify one or more channels in a shared radio frequency spectrum band are available for transmissions and, if the LBT procedure is successful, transmit a pre-grant transmission to one or more UEs. The UEs may perform an LBT procedure for channel(s) indicated in the pre-grant transmission. If the UE LBT procedure passes, the UE may transmit a channel clearance signal, and may transmit a feedback communication responsive to the pre-grant transmission. The feedback communication may indicate, for example, the pre-grant transmission was received and which of the one or more channels are available based on the LBT procedure. The base station may receive the feedback communication and initiate transmissions to the UE.

Abstract translation: 可以对基站和用户设备（UE）执行使用共享射频频带的信道间隔。 基站可以执行听话（LBT）过程并且验证共享射频频带中的一个或多个信道可用于传输，并且如果LBT过程成功，则向一个或多个UE发送预授权传输 。 UE可以对预授权传输中指示的信道执行LBT过程。 如果UE LBT过程通过，则UE可以发送信道清除信号，并且可以响应于预授权传输来发送反馈通信。 反馈通信可以指示例如基于LBT过程接收到预授权传输，并且一个或多个信道中的哪一个可用。 基站可以接收反馈通信并发起向UE的传输。

公开(公告)号：US09496974B2

公开(公告)日：2016-11-15

申请号：US14718031

申请日：2015-05-20

Applicant: QUALCOMM INCORPORATED

Inventor： Taesang Yoo ,  Tao Luo ,  Tingfang Ji

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

CPC classification number: H04J11/005 ,  H04B15/00 ,  H04L25/03891

Abstract: 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.

公开(公告)号：US09490855B1

公开(公告)日：2016-11-08

申请号：US14841798

申请日：2015-09-01

Applicant: QUALCOMM Incorporated

Inventor： Roberto Rimini ,  Nicholas Michael Carbone ,  Taesang Yoo ,  Muhammad Abdelghaffar ,  Sung Hwang ,  Wooseok Nam

IPC: H03D1/04 ,  H03D1/06 ,  H03K5/01 ,  H03K6/04 ,  H04B1/10 ,  H04L1/00 ,  H04L25/08 ,  H04B17/336 ,  H04L12/26 ,  H04L25/03

CPC classification number: H04B1/1036 ,  H04B1/005 ,  H04B1/525 ,  H04B17/336 ,  H04L25/03006 ,  H04L43/16

Abstract: Embodiments include systems and methods for managing an adaptive interference filter performed by a device processor of a mobile communication device. A device processor may determine whether a transmission power from the mobile communication device is greater than or equal to a transmit power threshold. The device processor may determine whether a ratio of interference in a received signal to a level of the received signal including noise (interference ratio) is greater than or equal to an interference ratio threshold in response to determining that the transmission power is greater than or equal to the transmit power threshold. The device processor may perform interference cancellation with the adaptive interference filter in response to determining that the interference ratio is greater than or equal to the interference ratio threshold. In some embodiments the adaptive interference filter may be a non-linear interference cancellation filter.

Abstract translation: 实施例包括用于管理由移动通信设备的设备处理器执行的自适应干扰滤波器的系统和方法。 设备处理器可以确定来自移动通信设备的传输功率是否大于或等于发射功率阈值。 设备处理器可以响应于确定发射功率大于或等于，确定接收信号中的干扰比与包括噪声（干扰比）的接收信号的电平是否大于或等于干扰比阈值 到发射功率阈值。 响应于确定干扰比大于或等于干扰比阈值，设备处理器可以利用自适应干扰滤波器执行干扰消除。 在一些实施例中，自适应干扰滤波器可以是非线性干扰消除滤波器。

公开(公告)号：US20160234820A1

公开(公告)日：2016-08-11

申请号：US15012541

申请日：2016-02-01

Applicant: QUALCOMM Incorporated

Inventor： Siddhartha Mallik ,  Jelena Damnjanovic ,  Taesang Yoo

IPC: H04W72/04 ,  H04L1/18

CPC classification number: H04W72/0406 ,  H04L1/1819 ,  H04L1/1822 ,  H04L1/1861 ,  H04L1/1896

Abstract: Methods, systems, and devices are described for wireless communication. A transmitting device may send a signal including multiple transport blocks corresponding to multiple simultaneous hybrid automatic repeat request (HARQ) processes. Additional control information may be used to support the multiple simultaneous HARQ processes. For instance, the additional control information may indicate the number of available HARQ processes, an activity state for each HARQ process (e.g., active new data, active retransmission, or inactive), and the redundancy versions of each HARQ process. In some cases, the additional control information may be included in a downlink grant. A receiving device may respond with an acknowledgement or negative acknowledgment (ACK/NACK) for each of the transport blocks. The transmitting device may identify a retransmission status for each HARQ process based on the ACK/NACKs, and transmit new redundancy versions (or new data) to the receiving device.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 发送设备可以发送包括对应于多个同步混合自动重传请求（HARQ）处理的多个传输块的信号。 附加控制信息可以用于支持多个同时的HARQ过程。 例如，附加控制信息可以指示可用HARQ过程的数量，每个HARQ进程的活动状态（例如，活动新数据，主动重传或不活动）以及每个HARQ过程的冗余版本。 在一些情况下，附加控制信息可以被包括在下行链路授权中。 接收设备可以响应每个传输块的确认或否定确认（ACK / NACK）。 发送装置可以基于ACK / NACK识别每个HARQ进程的重传状态，并向接收装置发送新的冗余版本（或新数据）。

公开(公告)号：US20160233999A1

公开(公告)日：2016-08-11

申请号：US15012560

申请日：2016-02-01

Applicant: QUALCOMM Incorporated

Inventor： Arumugam Chendamarai Kannan ,  Taesang Yoo ,  Siddhartha Mallik ,  Jelena Damnjanovic

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0055 ,  H04L1/0073 ,  H04L1/1607 ,  H04L1/1621 ,  H04L1/1671 ,  H04L1/1809 ,  H04L1/1861 ,  H04W72/0406 ,  H04W72/044

Abstract: Methods, systems, and devices are described for wireless communication. Wireless devices may exchange data using Medium Access Control (MAC) layer units known as transport blocks which may include a number of code blocks (CBs). A receiving device may attempt to decode each CB and send acknowledgement (ACK) and negative-acknowledgment (NACK) feedback to the transmitting device based on the whether each CB was successfully decoded. The receiving device may determine a format from two or more available formats for transmitting the ACK/NACK feedback. The format for the ACK/NACK feedback may be determined based at least in part on a number of CBs received and a number of CBs that have a NACK feedback. ACK/NACK feedback may be provided on an individual CB basis, or for bundles of CBs. The transmitting device may perform blind decoding of the received feedback to determine the ACK/NACK format and CBs that have NACK feedback.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 无线设备可以使用称为可以包括多个代码块（CB）的传输块的媒体访问控制（MAC）层单元来交换数据。 接收设备可以尝试对每个CB进行解码，并且基于每个CB是否被成功解码来向发送设备发送确认（ACK）和否定确认（NACK）反馈。 接收设备可以从用于发送ACK / NACK反馈的两种或多种可用格式确定格式。 可以至少部分地基于接收的CB的数量和具有NACK反馈的CB的数量来确定ACK / NACK反馈的格式。 可以在单独的CB基础上提供ACK / NACK反馈，或者对于CB的捆绑提供ACK / NACK反馈。 发送装置可以执行接收到的反馈的盲解码以确定具有NACK反馈的ACK / NACK格式和CB。

公开(公告)号：US20160226643A1

公开(公告)日：2016-08-04

申请号：US14965458

申请日：2015-12-10

Applicant: QUALCOMM Incorporated

Inventor： Siddhartha Mallik ,  Taesang Yoo ,  Jelena Damnjanovic

IPC: H04L5/00 ,  H04L1/18 ,  H04L1/00 ,  H04W72/04

CPC classification number: H04L5/0055 ,  H04L1/0057 ,  H04L1/0089 ,  H04L1/18 ,  H04L1/1819 ,  H04L1/1822 ,  H04L1/1896 ,  H04W72/0446

Abstract: Methods, systems, and devices are described for wireless communication. Wireless devices may exchange data using Medium Access Control (MAC) layer units known as transport blocks. The transport blocks may be partitioned into code block clusters (CBCs), each of which may include one or more code blocks. A receiving device may attempt to decode a transport block and send acknowledgement (ACK) and negative-acknowledgment (NACK) information to the transmitting device based on the whether each CBC was successfully decoded. The transmitting device may retransmit a redundancy version of a CBC for each NACK received. The transmitting device may group CBCs in segments of a transport block according to redundancy version. In some cases, the transmitting device may send a control message in a control channel which indicates the composition of the transport block.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 无线设备可以使用称为传输块的媒体访问控制（MAC）层单元交换数据。 传输块可以被划分为代码块集群（CBC），每个代码块集群可以包括一个或多个代码块。 接收设备可以尝试对传输块进行解码，并且基于每个CBC是否被成功解码，向发送设备发送确认（ACK）和否定确认（NACK）信息。 发送设备可以为接收的每个NACK重传CBC的冗余版本。 发送装置可以根据冗余版本在传输块的段中对CBC进行分组。 在一些情况下，发送设备可以在指示传输块的组成的控制信道中发送控制消息。

公开(公告)号：US20160134405A1

公开(公告)日：2016-05-12

申请号：US14931196

申请日：2015-11-03

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Taesang Yoo ,  Xiaoxia Zhang

IPC: H04L5/00

Abstract: Techniques are provided for reduction of processing requirements for portions of a received transmission relative to processing requirements for other portions of the same transmission. Different coding schemes may be employed for portions of a data transmission. In some examples, a tail portion of a data transmission may use a coding scheme that had reduced processing requirements relative to other portions of the data transmission. The reduced processing requirements may allow a receiver to generate an acknowledgment of receipt relatively quickly, which may reduce latency for acknowledging receipt of a transmission.

Abstract translation: 提供了相对于相同传输的其他部分的处理要求来减少接收的传输的部分的处理要求的技术。 不同的编码方案可以用于数据传输的部分。 在一些示例中，数据传输的尾部可以使用相对于数据传输的其他部分具有减少的处理要求的编码方案。 减少的处理要求可以允许接收机相对快速地生成接收确认，这可以减少用于确认传输的接收的等待时间。

公开(公告)号：US09084149B2

公开(公告)日：2015-07-14

申请号：US14243450

申请日：2014-04-02

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Tao Luo ,  Xiliang Luo

IPC: H04W24/00 ,  H04W24/08 ,  H04L5/00 ,  H04L25/02 ,  H04W72/04 ,  H04B17/318 ,  H04B17/327 ,  H04B17/382

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

Abstract: 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.

Abstract translation: 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：US20130308466A1

公开(公告)日：2013-11-21

申请号：US13943364

申请日：2013-07-16

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Tao Luo

IPC: H04W24/02

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。

公开(公告)号：US20130156013A1

公开(公告)日：2013-06-20

申请号：US13678332

申请日：2012-11-15

Applicant: Qualcomm Incorporated

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

IPC: H04W72/04

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 。