公开(公告)号：US10306606B2

公开(公告)日：2019-05-28

申请号：US15592981

申请日：2017-05-11

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Yisheng Xue ,  Juan Montojo ,  Jing Sun ,  Yongbin Wei ,  Shimman Arvind Patel

IPC: H04L1/00 ,  H04L1/16 ,  H04L1/18 ,  H04W72/04 ,  H04W72/12 ,  H04B17/336

Abstract: Techniques are described for wireless communication at a user equipment (UE). One method includes receiving a downlink grant for a downlink transmission; transmitting channel quality feedback at a first time triggered by receipt of the downlink grant, the first time occurring during a first transmission time interval (TTI); and transmitting acknowledgement/negative-acknowledgement (ACK/NACK) feedback for the downlink transmission at a second time triggered by receipt of the downlink grant, the second time occurring during a second TTI, and the second TTI occurring later in time than the first TTI.

公开(公告)号：US20190075595A1

公开(公告)日：2019-03-07

申请号：US16039141

申请日：2018-07-18

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Qingsi Wang ,  Ahmed Kamel Sadek

IPC: H04W74/08 ,  H04B7/0456 ,  H04B7/06 ,  H04W16/14 ,  H04L5/00 ,  H04W72/04

Abstract: Preceded contention reservation signals for synchronous new radio (NR) shared spectrum (NR-SS) networks are disclosed. A transmitter that uses precoded contention reservation signals may be configured either to skip or use the training phase for determining rank parameters. The transmitter participates in contention resolution with its receiver by transmitting the precoded contention reservation signals precoded with tentative rank parameters. After contention interval, receiver sends feedback to the transmitter identifying proposed rank parameters based on the strongest precoded contention signals of any neighboring nodes that also won access to the channel. When configured to skip the training phase, the transmitter sets the rank parameters according to the proposed rank parameters. Otherwise, the transmitter participates in the training phase with other winning nodes transmitting signals identifying proposed rank parameters. The receiver then feeds back refined rank parameters to the transmitter based on each of the proposed rank parameters of the training phase.

公开(公告)号：US20190013921A1

公开(公告)日：2019-01-10

申请号：US16016176

申请日：2018-06-22

Applicant: QUALCOMM Incorporated

Inventor： Qingsi Wang ,  Yisheng Xue ,  Siddhartha Mallik ,  Ahmed Kamel Sadek

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

CPC classification number: H04L5/0057 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/0026 ,  H04L1/1864 ,  H04L1/1867 ,  H04L1/20 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0053 ,  H04L5/0082 ,  H04L5/14 ,  H04W72/0446

Abstract: Methods, systems, and devices for wireless communication are described. A method may include obtaining a first channel quality indicator (CQI) backoff value based on a first set of acknowledgment messages associated with a first subframe of a first interval; setting a modulation and coding scheme (MCS) of a first subframe of a second interval using the first CQI backoff value; obtaining a second CQI backoff value based on a second set of acknowledgment messages associated with a second subframe of the first interval; and setting a MCS of the second subframe of the second interval using the second CQI backoff value.

公开(公告)号：US20170251473A1

公开(公告)日：2017-08-31

申请号：US15593075

申请日：2017-05-11

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Mingxe Fan ,  Jiye Liang

IPC: H04W72/04 ,  H04W52/12 ,  H03M13/41 ,  H03M13/23 ,  H03M13/09 ,  H03M13/39 ,  H04L1/00 ,  H04W52/32

Abstract: Techniques to increase the capacity of a W-CDMA wireless communications system. In an exemplary embodiment, early termination of one or more transport channels on a W-CDMA wireless communications link is provided. In particular, early decoding is performed on slots as they are received over the air, and techniques are described for signaling acknowledgment messages (ACK's) for one or more transport channels correctly decoded to terminate the transmission of those transport channels. The techniques may be applied to the transmission of voice signals using the adaptive multi-rate (AMR) codec. Further exemplary embodiments describe aspects to reduce the transmission power and rate of power control commands sent over the air, as well as aspects for applying tail-biting convolutional codes in the system.

公开(公告)号：US20170208575A1

公开(公告)日：2017-07-20

申请号：US15402051

申请日：2017-01-09

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Yisheng Xue ,  Peter Gaal ,  Seyedkianoush Hosseini ,  Shimman Arvind Patel

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/0406 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/0083 ,  H04L5/0092 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/1278 ,  H04W72/1289

Abstract: Systems, methods, and apparatuses for wireless communication are described. Multiple latency modes may be concurrently supported. Available resources and parameters for communication according to one latency mode may be determined with respect to resources used for another latency mode. One of the latency modes may employ transmission time intervals (TTIs) that are shorter in duration relative to the other latency mode. A transport block size or a modulation and coding scheme for shorter duration TTIs may be determined by reference to resources of longer duration TTIs. Multiple shorter duration TTIs may be scheduled in a single grant or may be individually scheduled; or a combination of multi- and individual-TTI scheduling may be employed. Scheduling may be UE-specific and may be dynamically indicated. The scheduling interpretation may depend on the location of a shorter duration TTI with respect to resources of a longer duration TTI.

公开(公告)号：US09544128B2

公开(公告)日：2017-01-10

申请号：US14768302

申请日：2013-02-21

Applicant: QUALCOMM INCORPORATED

Inventor： Hai Jiang ,  Yin Huang ,  Changlong Xu ,  Jian Li ,  Yisheng Xue

IPC: H04L7/00 ,  H04L7/04 ,  H04L7/10

CPC classification number: H04L7/0037 ,  H04L7/0062 ,  H04L7/043 ,  H04L7/10

Abstract: A method of data-aided timing recovery for Ethernet systems is disclosed. A first device negotiates a pseudorandom number sequence with a second device and receives a data signal from the second device. The first device samples the received data signal to recover a first training sequence. The first device also generates a second training sequence based on the pseudorandom number sequence. The second training sequence is then synchronized with the first training sequence. The synchronized second training sequence is used to align a receive clock signal of the first device with the data signal received from the second device.

Abstract translation: 公开了一种用于以太网系统的数据辅助定时恢复的方法。 第一设备与第二设备协商伪随机数序列，并从第二设备接收数据信号。 第一设备对接收的数据信号进行采样以恢复第一训练序列。 第一设备还基于伪随机数序列生成第二训练序列。 然后将第二训练序列与第一训练序列同步。 同步的第二训练序列用于将第一设备的接收时钟信号与从第二设备接收的数据信号对准。

公开(公告)号：US20150372803A1

公开(公告)日：2015-12-24

申请号：US14768302

申请日：2013-02-21

Applicant: Hai JIANG ,  Yin HUANG ,  Changlong XU ,  Jian LI ,  Yisheng XUE ,  QUALCOMM INCORPORATED

Inventor： Hai Jiang ,  Yin Huang ,  Changlong Xu ,  Jian Li ,  Yisheng Xue

IPC: H04L7/00 ,  H04L7/04

CPC classification number: H04L7/0037 ,  H04L7/0062 ,  H04L7/043 ,  H04L7/10

Abstract: A method of data-aided timing recovery for Ethernet systems is disclosed. A first device negotiates a pseudorandom number sequence with a second device and receives a data signal from the second device. The first device samples the received data signal to recover a first training sequence. The first device also generates a second training sequence based on the pseudorandom number sequence. The second training sequence is then synchronized with the first training sequence. The synchronized second training sequence is used to align a receive clock signal of the first device with the data signal received from the second device.

Abstract translation: 公开了一种用于以太网系统的数据辅助定时恢复的方法。 第一设备与第二设备协商伪随机数序列，并从第二设备接收数据信号。 第一设备对接收的数据信号进行采样以恢复第一训练序列。 第一设备还基于伪随机数序列生成第二训练序列。 然后将第二训练序列与第一训练序列同步。 同步的第二训练序列用于将第一设备的接收时钟信号与从第二设备接收的数据信号对准。

公开(公告)号：US20150326382A1

公开(公告)日：2015-11-12

申请号：US14763798

申请日：2013-01-28

Applicant: Jian LI ,  Yisheng XUE ,  Michael M. FAN ,  Jilei HOU ,  Yin Huang ,  Fuyun Ling ,  QUALCOMM INCORPORATED

Inventor： Jian Li ,  Yin Huang ,  Yisheng Xue ,  Michael M. Fan ,  Fuyun Ling ,  Jilei Hou

IPC: H04L7/00 ,  H04L25/03

CPC classification number: H04L7/0004 ,  H04L25/03 ,  H04L25/0305 ,  H04L25/0307 ,  H04L2025/03656

Abstract: A method of initializing a receiver is performed during an initialization mode. Timing offset values for a timing recovery circuit are repeatedly selected. For each selected timing offset value, timing recovery is performed using the timing offset value and groups of weights for a decision feedback equalizer are repeatedly selected. Each selected group of weights is used to perform blind decision feedback equalization. For each selected group of weights, a metric indicating data reception quality is computed. A timing offset value and a group of weights are chosen based on the computed metrics.

Abstract translation: 在初始化模式期间执行初始化接收机的方法。 定时恢复电路的定时偏移值被重复选择。 对于每个选择的定时偏移值，使用定时偏移值执行定时恢复，并且重复地选择用于判决反馈均衡器的权重组。 每个选择的权重组用于执行盲判决反馈均衡。 对于每个选择的权重组，计算指示数据接收质量的度量。 基于所计算的度量来选择定时偏移值和权重组。