公开(公告)号：US09497002B2

公开(公告)日：2016-11-15

申请号：US14764394

申请日：2014-02-07

Applicant: QUALCOMM INCORPORATED

Inventor： Chao Wei

IPC: H04B7/02 ,  H04L5/00 ,  H04B7/04 ,  H04B7/06 ,  H04W88/08

CPC classification number: H04L5/0048 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/0695 ,  H04W88/08

Abstract: Certain aspects of the present disclosure provide techniques for a user equipment (UE) to efficiently provide feedback regarding preferred beams to a base station (BS) that transmits with different beams from different elevations. The techniques generally involve the BS transmitting first reference signals transmitted, using a plurality of elevation beams. The UE selects at least one preferred elevation beam based on the first reference signals and feeds this back to the BS. The BS transmits second reference signals using the preferred elevation beam and a plurality of azimuthal ports. The UE provides a second stage channel feedback to the base station, based on the second reference signals.

Abstract translation: 本公开的某些方面提供了用于用户设备（UE）有效提供关于优选波束的反馈到基站（BS）的技术，所述基站（BS）以不同波幅的不同高度进行传输。 这些技术通常涉及BS使用多个仰角波束发射发射的第一参考信号。 UE基于第一参考信号选择至少一个优选的仰角波束并将其馈送回BS。 BS使用优选的仰角波束和多个方位角端口发射第二参考信号。 UE基于第二参考信号向基站提供第二级信道反馈。

公开(公告)号：US20160173180A1

公开(公告)日：2016-06-16

申请号：US14889108

申请日：2014-06-12

Applicant: Peng CHENG ,  Chao WEI ,  Neng WANG ,  Jilei HOU ,  QUALCOMM INCORPORATED

Inventor： Peng Cheng ,  Chao Wei ,  Neng Wang ,  Jilei Hou

IPC: H04B7/04 ,  H04L27/26

CPC classification number: H04B7/0478 ,  H04B7/0417 ,  H04B7/0469 ,  H04B7/0617 ,  H04L27/2628

Abstract: The present disclosure relates to systems and methods for a two-dimensional discrete Fourier transform based codebook for elevation beamforming. A two-dimensional discrete Fourier transform based codebook is determined for elevation beamforming. The codebook supports single stream codewords and multistream codewords. The two-dimensional discrete Fourier transform based codebook is generated by stacking the columns of the matrix product of two discrete Fourier transform codebook matrices. The codebook size may be flexibly designed based on required beam resolution in azimuth and elevation. A best codebook index is selected from the generated two-dimensional discrete Fourier transform based codebook. The selected codebook index is provided in a channel state information report. The channel state information report is transmitted to a base station.

Abstract translation: 本公开涉及用于仰角波束成形的基于二维离散傅里叶变换的码本的系统和方法。 基于二维离散傅里叶变换的码本被确定为仰角波束成形。 码本支持单流码字和多码流码字。 基于二维离散傅里叶变换的码本通过堆叠两个离散付里叶变换码本矩阵的矩阵乘积的列来生成。 可以基于方位角和高程中所需的光束分辨率灵活地设计码本大小。 从生成的基于二维离散傅立叶变换的码本中选择最佳码本索引。 所选码本索引在信道状态信息报告中提供。 信道状态信息报告被发送到基站。

公开(公告)号：US20150341927A1

公开(公告)日：2015-11-26

申请号：US14653114

申请日：2014-01-16

Applicant: Chao Wei ,  Neng Wang ,  Minghai Feng ,  Jilei Hou ,  Qualcomm Incorporated

Inventor： Chao Wei ,  Neng Wang ,  Minghai Feng ,  Jilei Hou

IPC: H04W72/04 ,  H04W76/04 ,  H04L1/18 ,  H04L5/14 ,  H04W72/14

CPC classification number: H04W72/0446 ,  H04L1/1614 ,  H04L1/1812 ,  H04L1/1854 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0055 ,  H04L5/0092 ,  H04L5/14 ,  H04L5/1469 ,  H04W72/14 ,  H04W76/27 ,  H04W88/02

Abstract: Methods, systems, and devices are described for reconfiguring a user equipment (UE) to operate in a reconfigured TDD UL-DL configuration. An initial uplink-downlink (UL-DL) configuration for TDD communication may be provided for communication between an e Node B and a UE. One or more subframes within each frame transmitted using the initial UL-DL configuration may be identified as flexible subframes. The identification of flexible subframes may permit the identification of timing for HARQ transmissions that does not change when a reconfiguration takes place. A different UL-DL configuration may be transmitted to the UE, in which at least one flexible subframe is to be changed from an uplink subframe to a downlink subframe. The different UL-DL configuration may be transmitted by, for example, a pseudo-uplink grant to the UE, which indicates that the UE is to reconfigure one or more flexible subframes from uplink to downlink transmission.

Abstract translation: 描述了用于重新配置用户设备（UE）以在重新配置的TDD UL-DL配置中操作的方法，系统和设备。 可以提供用于TDD通信的初始上行链路 - 下行链路（UL-DL）配置，用于e节点B和UE之间的通信。 使用初始UL-DL配置发送的每个帧内的一个或多个子帧可以被识别为灵活的子帧。 灵活子帧的识别可以允许识别在发生重新配置时不改变的HARQ传输的定时。 可以向UE发送不同的UL-DL配置，其中至少一个灵活子帧将从上行链路子帧改变到下行链路子帧。 可以通过例如伪上行链路授权向UE发送不同的UL-DL配置，其指示UE将从上行链路到下行链路传输重新配置一个或多个灵活的子帧。

公开(公告)号：US20150334704A1

公开(公告)日：2015-11-19

申请号：US14650669

申请日：2014-01-09

Applicant: Chao WEI ,  Jiming GUO ,  Jilei HOU ,  QUALCOMM INCORPORATED

Inventor： Chao Wei ,  Jiming Guo ,  Jilei Hou

IPC: H04W72/04 ,  H04W24/02 ,  H04L5/14

CPC classification number: H04W72/0446 ,  H04L5/14 ,  H04W24/02

Abstract: Dynamic intra-cluster coordination for TDD UL-DL reconfiguration using distributed TDD UL-DL reconfiguration techniques and/or new physical layer signaling. Cell weighting techniques may be used so that distributed TDD UL-DL reconfiguration of the cell cluster can be weighted towards cells of the cluster with higher load. Cells within a cell cluster may independently determine their preferred TDD UL-DL reconfiguration and one or more cells of the cluster may be eligible cells for determining the TDD UL-DL reconfiguration for the cluster. Special subframes may be used for transmission of TDD UL-DL reconfiguration messages from the configuring cell and transmission of ACK messages from other cells of the cluster. The TDD UL-DL reconfiguration message may be an orthogonal sequence based on a signature determined by the cell ID of the configuring cell.

Abstract translation: 使用分布式TDD UL-DL重配置技术和/或新的物理层信令的TDD UL-DL重配置的动态集群内协调。 可以使用小区加权技术，使得小区集群的分布式TDD UL-DL重新配置可以以更高的负载向集群的小区加权。 小区簇内的小区可以独立地确定其优选的TDD UL-DL重新配置，并且该簇的一个或多个小区可以是用于确定簇的TDD UL-DL重新配置的合格小区。 可以将特殊子帧用于从配置小区发送TDD UL-DL重新配置消息，并从集群的其他小区发送ACK消息。 TDD UL-DL重配置消息可以是基于由配置小区的小区ID确定的签名的正交序列。

公开(公告)号：US12289269B2

公开(公告)日：2025-04-29

申请号：US17754719

申请日：2020-10-10

Applicant: QUALCOMM Incorporated

Inventor： Chenxi Hao ,  Liangming Wu ,  Yu Zhang ,  Chao Wei ,  Hao Xu ,  Wanshi Chen

IPC: H04L12/28 ,  H04B7/06 ,  H04L5/00

Abstract: Certain aspects of the present disclosure provide techniques for port selection for channel state feedback with analog feedforward. A method that may be performed by a user equipment (UE) includes selecting one or more channel state information reference signals (CSI-RS) ports, of a plurality of CSI-RS ports, for the UE to report CSI. The port selection includes selecting any of the plurality of CSI-RS ports for selecting CSI-RS based on a grouping of the plurality of CSI-RS ports. The UE determines a precoding matrix indicator (PMI) formed by a linear combination of the one or more selected CSI-RS ports. The UE computes at least wideband linear combination coefficients for the selected CSI-RS ports. The UE provides the selected one or more CSI-RS ports and the computed wideband linear combination coefficients to a base station (BS) in a CSI report.

公开(公告)号：US12284690B2

公开(公告)日：2025-04-22

申请号：US17593522

申请日：2020-04-08

Applicant: QUALCOMM Incorporated

Inventor： Ruiming Zheng ,  Linhai He ,  Chao Wei ,  Jing Lei ,  Xiaoxia Zhang ,  Ozcan Ozturk ,  Gavin Bernard Horn

IPC: H04W74/0833 ,  H04L1/00 ,  H04W74/00 ,  H04W74/04 ,  H04W74/08 ,  H04W80/02

Abstract: Some techniques and apparatuses described herein provide an indication of a result of decoding a two-step random access channel (RACH) message and an action to be performed by a user equipment (UE). For example, some techniques and apparatuses described herein may provide the indication using a UE contention resolution identity-based approach, wherein the contention resolution identity of the UE may be provided in a random access response. Some techniques and apparatuses described herein may use a fallback indicator that indicates the result of decoding and/or the action to be performed. Some techniques and apparatuses described herein may use a random access response (RAR) subheader that selectively omits a random access preamble identifier based at least in part on the result of decoding and/or the action to be performed.

公开(公告)号：US12273858B2

公开(公告)日：2025-04-08

申请号：US17776555

申请日：2019-12-04

Applicant: Qualcomm Incorporated

Inventor： Qiaoyu Li ,  Chao Wei ,  Hao Xu ,  Huilin Xu ,  Jing Lei ,  Peter Pui Lok Ang ,  Wanshi Chen ,  Le Liu ,  Yiqing Cao ,  Peter Gaal

IPC: H04W68/02 ,  H04W76/10 ,  H04W76/28 ,  H04W88/04

Abstract: Idle discontinuous reception (I-DRX) cycles at a user equipment (UE) may be extended via leveraging of paging assistance from a second UE. For example, a low complexity UE may have a connection to a network (e.g., via a link to a base station) as well as a connection to another UE (e.g., via a device-to-device link to a regular UE). In cases where such a low complexity UE receives paging messages from the network, a UE associated with a device-to-device link of the low complexity UE may monitor paging messages on behalf of the low complexity UE. As such, the low complexity UE may extend its I-DRX cycle, as the assisting UE monitors paging information for the low complexity UE. The assisting UE may forward paging information for the low complexity UE according to paging occasions of the extended I-DRX cycle of the low complexity UE.

公开(公告)号：US12267826B2

公开(公告)日：2025-04-01

申请号：US17597872

申请日：2020-09-04

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu Li ,  Chao Wei ,  Peter Pui Lok Ang

IPC: H04W72/121 ,  H04L1/00 ,  H04W24/08 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/23

Abstract: A configuration of providing uplink resources that supports low throughput traffic and high throughput traffic, while providing efficient utilization of downlink resources. The apparatus configures at least one UE with a set of group identifiers, the set of group identifiers including at least one group identifiers. The apparatus transmits a GC-DCI in a GC search space, the GC-DCI indicates to the at least one UE a change of uplink data resources, the GC-DCI may be encoded using a group identifier from the set of group identifiers.

公开(公告)号：US12261784B2

公开(公告)日：2025-03-25

申请号：US17757910

申请日：2020-01-19

Applicant: QUALCOMM Incorporated

Inventor： Jing Dai ,  Chao Wei ,  Jing Lei ,  Peter Pui Lok Ang ,  Wanshi Chen

IPC: H04L5/00 ,  H04L1/08 ,  H04W72/12 ,  H04W72/1268

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a starting symbol of a radio frequency (RF) retuning gap between a first plurality of repetitions of an uplink transmission in a first frequency hop and a second plurality of repetitions of the uplink transmission in a second frequency hop. The starting symbol of the RF retuning gap is based at least in part on a starting symbol of the second plurality of repetitions and a quantity of symbols included in the RF retuning gap. The UE may determine an ending symbol of the RF retuning gap based at least in part on the starting symbol of the second plurality of repetitions. The UE may perform RF retuning during the RF retuning gap. Numerous other aspects are provided.

公开(公告)号：US12250669B2

公开(公告)日：2025-03-11

申请号：US17603568

申请日：2019-05-10

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu Li ,  Chao Wei ,  Sudhir Kumar Baghel ,  Kapil Gulati ,  Shailesh Patil ,  Hao Xu

IPC: H04W72/044 ,  H04B7/0456 ,  H04B7/06 ,  H04B7/08 ,  H04L5/00 ,  H04L5/14 ,  H04W92/18

Abstract: Certain aspects of the present disclosure provide techniques for beam management between two or more user equipment (UEs). In some aspects, the disclosure is directed to methods and techniques for performing various beam management procedures (e.g., P1, P2, and P3 procedures) on a sidelink communication between two or more UEs.