公开(公告)号：WO2017136666A1

公开(公告)日：2017-08-10

申请号：PCT/US2017/016417

申请日：2017-02-03

Applicant: QUALCOMM INCORPORATED

Inventor： CHINCHOLI, Amith Vikram ,  SUBRAHMANYA, Parvathanathan ,  GHEORGHIU, Valentin Alexandru

IPC: H04L1/00 ,  H04L1/20

CPC classification number: H04L1/0036 ,  H04L1/0072 ,  H04L1/20

Abstract: Aspects of the present disclosure provide adaptive radio link monitoring for machine type communication(s) (MTC), enhanced MTC (eMTC), and/or narrowband Internet-of-Things (NB-IoT). In one aspect, a method is provided which may be performed by a user equipment (UE). The method generally includes receiving a first configuration of parameters for receiving downlink control channel signaling, the first configuration of parameters associated with a first coverage level; measuring at least one parameter related to channel conditions; determining one or more dynamic radio link monitoring (RLM) threshold values for the at least one parameter based, at least in part, on the first configuration of parameters; and performing RLM functions based on the one or more dynamic RLM threshold values. The threshold may comprise early out thresholds that occur before out-of-sync (OOS) or in-sync thresholds. The thresholds may be determined using lookup tables.

Abstract translation: 本公开的各方面为机器类型通信（MTC），增强型MTC（eMTC）和/或窄带物联网（NB-IoT）提供自适应无线电链路监视。 在一个方面，提供了可以由用户设备（UE）执行的方法。 该方法通常包括接收用于接收下行链路控制信道信令的参数的第一配置，参数的第一配置与第一覆盖水平相关联; 测量与信道条件有关的至少一个参数; 至少部分地基于所述第一参数配置来确定所述至少一个参数的一个或多个动态无线电链路监视（RLM）阈值; 以及基于所述一个或多个动态RLM阈值来执行RLM功能。 该阈值可以包括在不同步（OOS）或同步阈值之前出现的早出阈值。 阈值可以使用查找表来确定。

公开(公告)号：WO2017052833A1

公开(公告)日：2017-03-30

申请号：PCT/US2016/046736

申请日：2016-08-12

Applicant: QUALCOMM INCORPORATED

Inventor： SUBRAHMANYA, Parvathanathan ,  SHEN, Qiang ,  KHANDEKAR, Aamod, Dinkar ,  MOTAMED, Mariam ,  CHEN, Wanshi ,  PAN, Hanfang ,  MATHEW, Deepak

IPC: H04L5/00 ,  H04L1/00 ,  H04W72/12 ,  H04W24/10

CPC classification number: H04W24/10 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/0029 ,  H04L5/001 ,  H04L5/0048 ,  H04L5/0057 ,  H04W8/22

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) utilizing enhanced carrier aggregation (eCA) may identify a limit to the number of channel state feedback (CSF) processes it is capable of supporting. The UE may transmit an indication of this limit to a base station, which may configure the UE for channel state reporting, and send channel state reporting triggers according to the indicated limit. The UE's determination of the limit to the number of CSF processes may be based on various transmit or receive antenna configurations. A single trigger may correspond to reports covering multiple subframes and/or component carriers. The base station may also arrange the channel state reporting configuration to reduce the peak number of channel state reports that the UE processes during each subframe. The UE may also determine that a number of channel state processes needed to support channel state reporting in a subframe exceeds its capacity. The UE may then prioritize the channel state processes and/or may transmit one or more non-current reports.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 利用增强的载波聚合（eCA）的用户设备（UE）可以识别其能够支持的信道状态反馈（CSF）过程的数量的限制。 UE可以向基站发送该限制的指示，该基站可以将UE配置为信道状态报告，并根据指示的限制发送信道状态报告触发。 UE对CSF过程数量的限制的确定可以基于各种发射或接收天线配置。 单个触发器可以对应于覆盖多个子帧和/或分量载波的报告。 基站还可以布置信道状态报告配置以减少在每个子帧期间UE处理的信道状态报告的峰值数量。 UE还可以确定在子帧中支持信道状态报告所需的信道状态过程的数量超过其容量。 然后，UE可以优先化信道状态过程和/或可以发送一个或多个非当前报告。

公开(公告)号：WO2010002991A1

公开(公告)日：2010-01-07

申请号：PCT/US2009/049404

申请日：2009-07-01

Applicant: QUALCOMM INCORPORATED ,  SUBRAHMANYA, Parvathanathan

Inventor： SUBRAHMANYA, Parvathanathan

IPC: H04W52/02

CPC classification number: H04W88/08 ,  H04W52/0206 ,  H04W52/244 ,  H04W52/287 ,  H04W52/322 ,  H04W52/325 ,  H04W84/045 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/23

Abstract: Devices and methods are provided for deploying and/or implementing a low power mode in an access point (AP) base station. The low power mode may be implemented based on the presence and/or status of access terminals (ATs). In one embodiment, the method may involve determining whether any ATs are present within at least one defined coverage area. In another embodiment, the method may involve determining whether the ATs are in an idle or active state.

Abstract translation: 提供了用于在接入点（AP）基站中部署和/或实现低功率模式的设备和方法。 低功率模式可以基于接入终端（AT）的存在和/或状态来实现。 在一个实施例中，该方法可以包括确定在至少一个定义的覆盖区域内是否存在任何AT。 在另一个实施例中，该方法可以涉及确定AT是处于空闲还是活动状态。

公开(公告)号：WO2007059522A1

公开(公告)日：2007-05-24

申请号：PCT/US2006/060952

申请日：2006-11-15

Applicant: QUALCOMM Incorporated ,  MERGEN, Gokhan ,  SUBRAHMANYA, Parvathanathan ,  ALILAGHATTA-KANTHARAJ, Vijayaraj ,  KASTURI, Nitin

Inventor： MERGEN, Gokhan ,  SUBRAHMANYA, Parvathanathan ,  ALILAGHATTA-KANTHARAJ, Vijayaraj ,  KASTURI, Nitin

IPC: H04L25/02 ,  H04L25/03

CPC classification number: H04L25/025 ,  H04B17/3913 ,  H04B2201/70701 ,  H04L25/0212 ,  H04L25/0228 ,  H04L25/03038

Abstract: Techniques for filtering noisy estimates to reduce estimation errors are described. A sequence of input values (e.g., for an initial channel impulse response estimate (CIRE)) is filtered with an infinite impulse response (IIR) filter having at least one coefficient to obtain a sequence of output values (e.g., for a filtered CIRE). The coefficient(s) are updated based on the sequence of input values with an adaptive filter, a bank of prediction filters, or a normalized variation technique. To update the coefficient(s) with the adaptive filter, a sequence of predicted values is derived based on the sequence of input values. Prediction errors between the sequence of predicted values and the sequence of input values are determined and filtered to obtain filtered prediction errors. The coefficient(s) of the IIR filter are then updated based on the prediction errors and the filtered prediction errors.

Abstract translation: 描述了用于过滤噪声估计以减少估计误差的技术。 输入值的序列（例如，对于初始信道脉冲响应估计（CIRE））用具有至少一个系数的无限脉冲响应（IIR）滤波器进行滤波以获得输出值序列（例如，对于滤波后的CIRE） 。 基于具有自适应滤波器，预测滤波器组或归一化变化技术的输入值的序列来更新系数。 为了用自适应滤波器更新系数，基于输入值的序列导出预测值序列。 确定并过滤预测值序列与输入值序列之间的预测误差，以获得滤波预测误差。 然后基于预测误差和滤波预测误差来更新IIR滤波器的系数。

公开(公告)号：WO2004073207A1

公开(公告)日：2004-08-26

申请号：PCT/US2004/003903

申请日：2004-02-09

Applicant: QUALCOMM INCORPORATED ,  JOOTAR, Jittra ,  SHIU, Da-shan ,  SUBRAHMANYA, Parvathanathan

Inventor： JOOTAR, Jittra ,  SHIU, Da-shan ,  SUBRAHMANYA, Parvathanathan

IPC: H04B7/06

CPC classification number: H04B7/0634

Abstract: Techniques for predicting weights used for closed-loop transmit diversity. In a channel prediction scheme, channel gains for multiple transmit antennas are initially estimated (e.g., based on pilots received from these antennas) and used to derive predicted channel gains for a future time instant. The predicted channel gains are then used to derive predicted weights that are deemed to be "optimal" at the future time instant. Optimality may be determined based on one or more criteria, such as maximizing a received SNR for the received signals. In a weight prediction scheme, the channel gains for the multiple antennas are estimated and used to compute optimal weights for the current time instant. The current optimal weights are then used to predict the optimal weights at the future time instant. For both schemes, the prediction may be performed based on an adaptive filter (e.g., LMS or RLS filter) or a non-adaptive filter.

Abstract translation: 用于预测用于闭环发射分集的权重的技术。 在信道预测方案中，最初估计多个发射天线的信道增益（例如，基于从这些天线接收的导频），并用于在未来时刻导出预测的信道增益。 然后，预测的信道增益用于导出在未来时刻被认为是“最佳”的预测权重。 可以基于一个或多个准则来确定最优性，例如为接收到的信号最大化接收到的SNR。 在权重预测方案中，估计多个天线的信道增益并用于计算当前时刻的最优权重。 然后使用当前的最优权重来预测未来时刻的最优权重。 对于这两种方案，可以基于自适应滤波器（例如，LMS或RLS滤波器）或非自适应滤波器来执行预测。

公开(公告)号：WO2003019813A1

公开(公告)日：2003-03-06

申请号：PCT/US2002/027051

申请日：2002-08-22

Applicant: QUALCOMM, INCORPORATED

Inventor： SUBRAHMANYA, Parvathanathan

IPC: H04B7/005

CPC classification number: H04W52/40

Abstract: Techniques to combine soft-decision power control symbols received for multiple active base stations. In one method, a received signal is initially processed to derive soft-decision (multi-bit valued) symbols for power control commands transmitted from a number of base stations. Each soft-decision symbol for each base station is then scaled based on a scaling factor associated with the base station and which is related to the received signal quality for the power control symbols for the base station. The scaling allows power control symbols for more reliably received base stations to be given greater weights. The scaled soft-decision symbols for each power control period are then combined to provide a decision metric for the period. Each decision metric is then compared against a particular threshold, and a power control decision is derived for each decision metric based on the result of the comparison.

Abstract translation: 组合为多个活动基站接收的软判决功率控制符号的技术。 在一种方法中，首先处理接收信号以导出从多个基站发送的功率控制命令的软判决（多位值）符号。 然后基于与基站相关联的缩放因子对每个基站的每个软判决符号进行缩放，并且与基站的功率控制符号的接收信号质量相关。 缩放允许给予更可靠接收的基站的功率控制符号更大的权重。 然后将每个功率控制周期的缩放的软判决符号组合以提供该周期的决策度量。 然后将每个决策度量与特定阈值进行比较，并且基于比较的结果为每个决策度量导出功率控制决策。

公开(公告)号：WO2003017527A2

公开(公告)日：2003-02-27

申请号：PCT/US2002/026449

申请日：2002-08-20

Applicant: QUALCOMM INCORPORATED

Inventor： SHIU, Da-shan ,  WILLENEGGER, Serge ,  CHI, Richard ,  SUBRAHMANYA, Parvathanathan ,  HSU, Chih-Ping

IPC: H04B7/005

CPC classification number: H04W52/12 ,  H04W52/20 ,  H04W52/267 ,  H04W52/283 ,  H04W52/286 ,  H04W52/44

Abstract: Techniques to more efficiently control the transmit power for a data transmission that uses a number of formats (e.g., rates, transport formats). Different formats for a given data channel (e.g., transport channel) may require different target SNIRs to achieved a particular BLER. In one aspect, individual target BLER may be specified for each format of each data channel. In another aspect, various power control schemes are provided to achieve different target SNIRs for different formats. In a first power control scheme, multiple individual outer loops are maintained for multiple formats. For each format, its associated outer loop attempts to set the target SNIR such that the target BLER specified for that format is achieved. In a second power control scheme, multiple individual outer loops are maintained and the base station further applies different adjustments to the transmit power levels for different formats.

Abstract translation: 用于更有效地控制使用多种格式（例如，速率，传输格式）的数据传输的传输功率的技术。 给定数据信道（例如传输信道）的不同格式可能需要不同的目标SNIR来实现特定的BLER。 在一个方面，可以为每个数据信道的每个格式指定单独的目标BLER。 另一方面，提供各种功率控制方案以针对不同格式实现不同的目标SNIR。 在第一种功率控制方案中，针对多种格式维持多个单独的外部回路。 对于每种格式，其关联的外部循环尝试设置目标SNIR，从而实现为该格式指定的目标BLER。 在第二种功率控制方案中，维持多个单独的外环，并且基站对不同格式的发射功率电平进行不同调整。

公开(公告)号：WO2018022299A1

公开(公告)日：2018-02-01

申请号：PCT/US2017/041688

申请日：2017-07-12

Applicant: QUALCOMM INCORPORATED

Inventor： RICO ALVARINO, Alberto ,  ANCHAN, Kirankumar Bhoja ,  VUMMINTALA, Shashidhar ,  BALASUBRAMANIAN, Srinivasan ,  XU, Hao ,  SUBRAHMANYA, Parvathanathan ,  FAKOORIAN, Seyed Ali Akbar ,  GAAL, Peter ,  SOMICHETTY, Gowrisankar

IPC: H04L5/00

Abstract: Aspects of the present disclosure relate to methods and apparatus for optimizing real time services (e.g., such as a voice over Long Term Evolution (LTE) (VoLTE)) for devices with limited communications resources, such as machine type communication (MTC) devices and enhanced MTC (eMTC) devices. In one aspect, a UE determines a first configuration of subframes within at least one radio frame available for the UE and other UEs to use for bundled communications with a BS. The UE receives an indication of one or more subframes within the at least one radio frame that are unavailable for bundled uplink transmissions, and determines a second configuration of subframes to use for bundled communications based on the indication. The UE overrides the first configuration of subframes with the second configuration of subframes, and communicates with the BS using the second configuration of subframes. Numerous other aspects are provided.

Abstract translation: 本公开的各方面涉及用于针对具有有限通信资源的设备优化实时服务（例如，诸如长期演进语音（LTE）（VoLTE））的设备的方法和设备，诸如 机器类型通信（MTC）设备和增强型MTC（eMTC）设备。 在一个方面中，UE确定可用于UE和其他UE用于与BS进行捆绑通信的至少一个无线电帧内的子帧的第一配置。 UE接收至少一个无线电帧内的不可用于捆绑上行链路传输的一个或多个子帧的指示，并且基于该指示确定用于捆绑通信的子帧的第二配置。 UE用子帧的第二配置覆盖子帧的第一配置，并且使用子帧的第二配置与BS通信。 还提供了许多其他方面。

公开(公告)号：WO2018022233A1

公开(公告)日：2018-02-01

申请号：PCT/US2017/039283

申请日：2017-06-26

Applicant: QUALCOMM INCORPORATED

Inventor： WU, Jie ,  HSU, Chun-Hao ,  ZHAO, Liang ,  SUBRAHMANYA, Parvathanathan ,  MAHAJAN, Amit ,  PANT, Nitin ,  VANGHI, Vieri

IPC: H04W52/02 ,  G01S19/21 ,  H04B1/525 ,  H04W52/24

Abstract: Methods, systems, computer-readable media, and apparatuses for to managing use of a satellite positions system (SPS) receiver in conjunction with one or more radio access technology (RAT) transmitters. In certain embodiments, a controller can be used to prioritize reception by the SPS receiver over transmission by the one or more RAT transmitters.

Abstract translation: 用于管理与一个或多个无线电接入技术（RAT）发射机结合使用卫星定位系统（SPS）接收机的方法，系统，计算机可读介质和设备。 在某些实施例中，可以使用控制器来优先考虑由SPS接收机在一个或多个RAT发射机的传输上的接收。

公开(公告)号：WO2010148311A1

公开(公告)日：2010-12-23

申请号：PCT/US2010/039182

申请日：2010-06-18

Applicant: QUALCOMM INCORPORATED ,  KRISHNASWAMY, Dilip ,  KANADE, Parag Mohan ,  SUBRAHMANYA, Parvathanathan

Inventor： KRISHNASWAMY, Dilip ,  KANADE, Parag Mohan ,  SUBRAHMANYA, Parvathanathan

IPC: H04W52/02 ,  H04W48/16 ,  H04W48/18

CPC classification number: H04W52/028 ,  H04W48/16 ,  H04W48/18 ,  H04W52/0229 ,  H04W88/06 ,  Y02D70/122 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146

Abstract: Apparatus and methods for low power sensing of wireless access technologies are disclosed. In particular, a mobile wireless device, such as an access terminal, may utilize a lower power circuitry portion that operates at a lower power than active circuitry, such as a primary transceiver. The lower power circuitry portion includes a configurable searcher that is capable of sensing if signals of one or more various wireless access technologies are present. When the wireless device utilizes sleep or idle modes for power savings, use of the lower power sensing circuitry to sense the presence of wireless access technologies, rather than using an awoken higher power primary transceiver for sensing, affords increased power savings. An added ability of the lower power circuitry to be put into sleep or idles modes achieves even greater power savings.

Abstract translation: 公开了用于无线接入技术的低功率感测的装置和方法。 具体地，诸如接入终端的移动无线设备可以利用比诸如主收发器的有源电路低的功率操作的较低功率电路部分。 较低功率电路部分包括能够感测是否存在一种或多种各种无线接入技术的信号的可配置搜索器。 当无线设备利用睡眠或空闲模式进行功率节省时，使用低功率感测电路来感测无线接入技术的存在，而不是使用唤醒的较高功率的主收发器来进行感测，从而提供更大的功率节省。 低功率电路进入睡眠或空闲模式的附加功能实现了更大的功率节省。