公开(公告)号：US11405809B2

公开(公告)日：2022-08-02

申请号：US16841974

申请日：2020-04-07

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Ruhua He ,  Stefan Brueck ,  Yong Li ,  Tao Luo

IPC: H04W24/08 ,  H04B7/06 ,  H04L5/00 ,  H04W8/24 ,  H04W56/00 ,  H04W72/04

Abstract: A configuration to improve the manner in which a UE is configured to perform RLM for UEs that do not support CSI-RS based RLM. The apparatus may transmit, to a base station, an indication including a RLM capability. The apparatus may receive, from the base station, a RLM RS configuration from the UE based on the indication. The apparatus determines the RLM RS configuration for the UE, based on the RLM RS configuration received from the base station.

公开(公告)号：US20200351674A1

公开(公告)日：2020-11-05

申请号：US16860036

申请日：2020-04-27

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Tao Luo ,  Ruhua He ,  Stefan Brueck ,  Parisa Cheraghi

IPC: H04W16/28 ,  H04W80/02 ,  H04B7/06 ,  H04L5/00 ,  H04W52/24 ,  H04W72/04 ,  H04W56/00 ,  H04L25/02

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques provide for dynamic updates to beam failure detection (BFD) reference signals (RSs) and path loss RS using medium access control-control element (MAC-CE) or downlink control information (DCI). For example, the quasi co-location (QCL) of periodic CSI-RS may be dynamically updated by the MAC-CE or DCI when the periodic CSI-RS is for BFD RS. Also, a semi-persistent CSI-RS or aperiodic CSI-RS may act as a BFD RS. An enhanced update procedure may be used to update the path loss RS dynamically using MAC-CE or DCI. In some cases, the path loss RS parameters updated via MAC-CE or DCI may overwrite the previously RRC configured path loss RS parameters. In another example, if the path loss RS is not configured, then the path loss RS by default may be the spatial relation reference signal of the corresponding uplink beam.

公开(公告)号：US20200351039A1

公开(公告)日：2020-11-05

申请号：US16861404

申请日：2020-04-29

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Tao Luo ,  Ruhua He ,  Stefan Brueck

IPC: H04L5/00 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. A base station may identify an active transmission configuration indicator (TCI) state, a set of active TCI states, and/or a spatial relation reference signal identifier to be used for one or more component carriers (CCs) of a UE. The base station may then transmit a control message to the UE that may indicate the identified active TCI state, set of active TCI states, and/or spatial relation reference signal identifier to be used for one or more CCs and/or bandwidth parts of the UE. The UE may determine a communication configuration for a CC of the plurality of CC based on the control message and an optional shared command indication. The UE may the apply the TCI state or set of active TCI states to a subset of CCs, or UE may configure sounding reference signals for a subset of CCs.

公开(公告)号：US09143365B2

公开(公告)日：2015-09-22

申请号：US13970992

申请日：2013-08-20

Applicant: QUALCOMM Incorporated

Inventor： Hendrik Schoeneich ,  Stefan Brueck ,  Juan Montojo

IPC: H04L25/02

CPC classification number: H04L25/0224 ,  H04L25/022 ,  H04L25/0232

Abstract: A method of performing channel estimation includes receiving a frame that includes, for each subcarrier of a subset of subcarriers in the frame, a pair of pilot symbols in the subcarrier. The subcarriers of the subset are regularly spaced apart from one another in the frequency domain. Time-averaged channel estimates for each subcarrier of the subset are generated based on the pairs of pilot symbols. Frequency-averaged channel estimates for respective subcarriers are generated based on the time-averaged channel estimates. Interpolation is performed between respective frequency-averaged channel estimates to generate interpolated channel estimates for subcarriers between the respective subcarriers.

Abstract translation: 执行信道估计的方法包括接收对于副载波中的子载波子集的每个子载波包括一对导频符号的帧。 该子集的子载波在频域中彼此规则地间隔开。 基于导频符号对来生成子集的每个子载波的时间平均信道估计。 基于时间平均信道估计生成各子载波的频率平均信道估计。 在相应的频率平均信道估计之间进行插值，以产生各个子载波之间的子载波的内插信道估计。

公开(公告)号：US09042432B2

公开(公告)日：2015-05-26

申请号：US13828996

申请日：2013-03-14

Applicant: QUALCOMM Incorporated

Inventor： Marc Walter Werner ,  Stefan Brueck ,  Lawrence Winston Yonge, III

IPC: H04B1/38 ,  H04B15/00 ,  H04B3/54 ,  H04L1/20 ,  H04L25/06

CPC classification number: H04B15/00 ,  H04B3/54 ,  H04B3/542 ,  H04B2203/5416 ,  H04B2203/5495 ,  H04L1/20 ,  H04L25/067

Abstract: An adaptive filter bank can be implemented on a PLC device to dynamically adapt to variations in notching requirements and the performance of the PLC medium. The PLC device can apply filter coefficients to one or more filter elements of the adaptive filter bank to generate one or more notched subcarriers in the PLC band. A performance measurement of one or more subcarriers in the PLC band can be determined and evaluated against corresponding performance measurement thresholds. For a given notched subcarrier, if the performance measurement of the corresponding subcarriers is not in accordance with the performance measurement threshold, updated filter coefficients for the filter element configured to generate the notched subcarrier can be determined based, at least in part, on the performance measurement of the one or more subcarriers. The filter coefficients of the filter element can then be updated using the updated filter coefficients.

Abstract translation: 可以在PLC设备上实现自适应滤波器组，以动态地适应PLC介质的开槽要求和性能的变化。 PLC设备可以将滤波器系数应用于自适应滤波器组的一个或多个滤波器元件，以在PLC频带中产生一个或多个有缺口的子载波。 可以根据相应的性能测量阈值确定和评估PLC频带中一个或多个子载波的性能测量。 对于给定的缺口子载波，如果相应子载波的性能测量不符合性能测量阈值，则可以至少部分地基于性能来确定被配置为生成缺陷副载波的滤波器元件的更新滤波器系数 一个或多个子载波的测量。 然后可以使用更新的滤波器系数来更新滤波器元件的滤波器系数。

公开(公告)号：US20140255029A1

公开(公告)日：2014-09-11

申请号：US14084310

申请日：2013-11-19

Applicant: QUALCOMM Incorporated

Inventor： Nicola Varanese ,  Hendrik Schoeneich ,  Christian Pietsch ,  Christoph Arnold Joetten ,  Andrea Garavaglia ,  Stefan Brueck ,  Juan Montojo

IPC: H04B10/27 ,  H04L27/26

CPC classification number: H04L27/2626 ,  H04L1/0041 ,  H04L1/0071 ,  H04L5/0048 ,  H04L5/0053 ,  H04L27/2613 ,  H04L27/2656

Abstract: A coax network unit (CNU) receives downstream bursts from a coax line terminal (CLT) and transmits upstream bursts to the CLT. The downstream bursts include start markers that indicate the beginnings of the downstream bursts and may also include pilot symbols. The downstream bursts are continuous across available resource elements in a matrix of subcarriers and orthogonal frequency-division multiplexing (OFDM) symbols. The available resource elements exclude resource elements in the matrix that carry the pilot symbols. The upstream bursts may include start markers indicating the beginnings of the upstream bursts and end markers indicating the ends of the upstream bursts. Respective upstream bursts are transmitted in respective groups of one or more resource blocks allocated to the CNU.

Abstract translation: 同轴网络单元（CNU）从同轴线路终端（CLT）接收下行脉冲串，并将上行脉冲串发送给CLT。 下游突发包括指示下游突发的开始的起始标记，并且还可以包括导频符号。 下行突发在子载波矩阵和正交频分复用（OFDM）符号中的可用资源元素之间是连续的。 可用资源元素排除携带导频符号的矩阵中的资源元素。 上游突发可以包括指示上游突发的开始的起始标记和指示上游突发的结束的结束标记。 在分配给CNU的一个或多个资源块的相应组中发送相应的上行脉冲串。

公开(公告)号：US20140153672A1

公开(公告)日：2014-06-05

申请号：US13946706

申请日：2013-07-19

Applicant: QUALCOMM Incorporated

Inventor： Lu Zhao ,  Stefan Brueck ,  Stephan Schlupkothen ,  Muhammad Awais Amin ,  Juan Montojo ,  Marc W. Werner ,  Hendrik Schoeneich

IPC: H04L27/06

CPC classification number: H04L27/06 ,  H04L1/0036 ,  H04L1/005 ,  H04L1/0057 ,  H04L27/3416

Abstract: A receiver circuit, including a multi-stage QAM de-mapper, for receiving a QAM data signal is disclosed. A first de-mapper circuit recovers a set of encoded data bits from the QAM data signal by calculating a plurality of distances between a received QAM symbol and each of a plurality of possible constellation points. A second de-mapper circuit then generates a set of unencoded data bits for the received QAM symbol based, at least in part, on the plurality of distances calculated by the first de-mapper circuit. The receiver circuit may further include a decoder circuit to decode the set of encoded data bits recovered by the first de-mapper circuit. The second de-mapper circuit may identify a subset of the plurality of possible constellation points based on a result of the decoding and select a constellation point that is associated with the shortest distance of the plurality of distances.

Abstract translation: 公开了一种用于接收QAM数据信号的包括多级QAM解映射器的接收机电路。 第一解映射器电路通过计算接收的QAM符号和多个可能的星座点中的每一个之间的多个距离，从QAM数据信号中恢复一组编码数据位。 然后，第二解映射器电路至少部分地基于由第一解映射器电路计算的多个距离来生成用于所接收的QAM符号的一组未编码数据位。 接收器电路还可以包括解码器电路，以对由第一解映射器电路恢复的编码数据位组进行解码。 第二解映射器电路可以基于解码的结果来识别多个可能的星座点的子集，并且选择与多个距离中的最短距离相关联的星座点。