公开(公告)号：US20150189541A1

公开(公告)日：2015-07-02

申请号：US14659150

申请日：2015-03-16

Applicant: QUALCOMM Incorporated

Inventor： Ravi Palanki ,  Juan Montojo ,  Aamod Dinkar Khandekar ,  Tao Luo ,  Kapil Bhattad

IPC: H04W28/02 ,  H04W72/04 ,  H04J11/00 ,  H04W56/00

CPC classification number: H04W28/0284 ,  H04B7/0617 ,  H04J11/005 ,  H04L1/0041 ,  H04L1/0072 ,  H04L5/0007 ,  H04L5/0053 ,  H04L7/041 ,  H04L27/2613 ,  H04W56/001 ,  H04W72/0453

Abstract: Techniques for transmitting overload indicators over the air to UEs in neighbor cells are described. In one design, an overload indicator may be transmitted as a phase difference between at least one synchronization signal and a reference signal for a cell. In another design, an overload indicator may be transmitted as a phase difference between consecutive transmissions of at least one synchronization signal for a cell. In yet another design, an overload indicator may be transmitted by a cell on resources reserved for transmitting the overload indicator. In yet another design, an overload indicator may be transmitted by a cell on a low reuse channel or a broadcast channel. For all designs, a UE may receive overload indicators from neighbor cells, determine the loading of each neighbor cell based on the overload indicator for that cell, and control its operation based on the loading of the neighbor cells.

Abstract translation: 描述了在空中向相邻小区中的UE发送过载指示符的技术。 在一种设计中，过载指示符可以作为小区的至少一个同步信号和参考信号之间的相位差发送。 在另一种设计中，可以将过载指示符作为用于小区的至少一个同步信号的连续传输之间的相位差发送。 在另一种设计中，过载指示符可以由小区在保留用于发送过载指示符的资源上发送。 在另一种设计中，过载指示符可以由低重用信道或广播信道上的小区发送。 对于所有设计，UE可以从相邻小区接收过载指示符，基于该小区的过载指示符确定每个相邻小区的负载，并且基于相邻小区的加载来控制其操作。

公开(公告)号：US20150085948A1

公开(公告)日：2015-03-26

申请号：US14565124

申请日：2014-12-09

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Peter Gaal

IPC: H04B7/04 ,  H04B7/06

CPC classification number: H04B7/0486 ,  H04B7/0478 ,  H04B7/0617 ,  H04B7/0671 ,  H04L5/0023 ,  H04L25/03343 ,  H04L2025/03426

Abstract: A method and apparatus of wireless communication are disclosed. The wireless communication performs pilot signal transmissions using a first precoding matrix for user equipment specific pilot signals, the pilot signal transmissions having a first transmission rank. The wireless communication also performs data transmissions using a second precoding matrix for data when the data transmissions have a second transmission rank less than the first transmission rank, in which the second precoding matrix includes a transformed version of the first precoding matrix. Alternatively, the wireless communication can perform data transmissions using at least two precoding matrices for data when the data transmissions have a second transmission rank less than or equal to the first transmission rank. Accordingly, the precoding matrix used for data is a transformed version of the precoding matrix used for user equipment specific pilot signals.

Abstract translation: 公开了一种无线通信的方法和装置。 无线通信使用用于用户设备专用导频信号的第一预编码矩阵来执行导频信号传输，导频信号传输具有第一传输等级。 当数据传输具有小于第一传输秩的第二传输级时，无线通信还使用用于数据的第二预编码矩阵执行数据传输，其中第二预编码矩阵包括第一预编码矩阵的变换版本。 或者，当数据传输具有小于或等于第一传输等级的第二传输等级时，无线通信可以使用用于数据的至少两个预编码矩阵来执行数据传输。 因此，用于数据的预编码矩阵是用于用户设备专用导频信号的预编码矩阵的变换版本。

公开(公告)号：US20140086092A1

公开(公告)日：2014-03-27

申请号：US14094548

申请日：2013-12-02

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Kapil Bhattad ,  Peter Gaal ,  Alexei Yurievitch Gorokhov ,  Juan Montojo

IPC: H04W24/08

CPC classification number: H04W24/08 ,  H04L1/0026 ,  H04L1/0028 ,  H04L5/0041 ,  H04L5/0048

Abstract: Techniques for supporting channel measurement and reporting in a wireless communication system are described. In one design, a cell transmits a cell-specific reference signal (CRS) used for channel estimation and coherent demodulation and a channel spatial information reference signal (CSI-RS) used for channel measurement and channel feedback reporting. The cell may transmit the CSI-RS less frequently than the CRS, or from more antenna ports than the CRS, or on fewer resource elements than the CRS, or a combination thereof. In one design, a user equipment (UE) determines at least one bandwidth part configured for the UE, with each bandwidth part covering at least one subband. The UE receives the CRS and CSI-RS from the cell, determines channel feedback information for the at least one bandwidth part based on the CSI-RS, sends the channel feedback information to the cell, and receives data transmitted by the cell based on the channel feedback information.

Abstract translation: 描述了在无线通信系统中支持信道测量和报告的技术。 在一种设计中，小区发送用于信道估计和相干解调的小区特定参考信号（CRS）以及用于信道测量和信道反馈报告的信道空间信息参考信号（CSI-RS）。 小区可以比CRS更频繁地发送CSI-RS，或者比比CRS更多的天线端口或比CRS更少的资源元素或其组合来发送CSI-RS。 在一种设计中，用户设备（UE）确定为UE配置的至少一个带宽部分，每个带宽部分覆盖至少一个子带。 UE从小区接收CRS和CSI-RS，基于CSI-RS确定至少一个带宽部分的信道反馈信息，向小区发送信道反馈信息，并接收基于小区的小区发送的数据 渠道反馈信息。

公开(公告)号：US20140078880A1

公开(公告)日：2014-03-20

申请号：US14025495

申请日：2013-09-12

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Dinesh Krithivasan ,  Dhananjay Ashok Gore

IPC: H04J11/00

CPC classification number: H04J11/00 ,  H04B7/0413 ,  H04B7/0802 ,  H04B7/0854 ,  H04B7/086 ,  H04B7/0871 ,  H04B7/0885 ,  H04L1/0026 ,  H04L1/1812 ,  H04L5/0048 ,  H04L5/0053

Abstract: Certain aspects of the present disclosure relate to techniques for providing multi-antenna enhancements using multiple processing units. A UE (User Equipment) may receive data via three or more antennas. The UE may determine a number of independent processing units to be employed to process the data, wherein the determined number of independent processing units includes at least two processing units and at least one processing unit jointly processes at least two streams of data. The data may be processed by the determined number of independent processing units and the results of the processing units may be combined.

Abstract translation: 本公开的某些方面涉及使用多个处理单元提供多天线增强的技术。 UE（用户设备）可以经由三个或更多个天线来接收数据。 UE可以确定要用于处理数据的多个独立处理单元，其中所确定的独立处理单元的数量包括至少两个处理单元，并且至少一个处理单元联合处理至少两个数据流。 可以通过确定数量的独立处理单元处理数据，并且可以组合处理单元的结果。

公开(公告)号：US20130155890A1

公开(公告)日：2013-06-20

申请号：US13714121

申请日：2012-12-13

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Dhananjay Ashok Gore ,  Peter Gaal

IPC: H04W24/02

CPC classification number: H04W24/02 ,  H04B7/0802 ,  H04B7/0811 ,  H04B7/0874

Abstract: Methods and apparatus for performing receive antenna diversity measurements in measurement gaps are provided. One embodiment may include communicating with a serving base station using a first set of one or more receive antennas during a normal operational period, performing receive antenna diversity measurements with a second set of one or more receive antennas during a measurement gap between normal operational periods, and selecting one or more receive antennas for at least one of use and/or combining, based on the receive antenna diversity measurements

Abstract translation: 提供了用于在测量间隙中执行接收天线分集测量的方法和装置。 一个实施例可以包括在正常操作周期期间使用第一组一个或多个接收天线与服务基站进行通信，在正常操作周期期间的测量间隙期间，利用第二组一个或多个接收天线执行接收天线分集测量， 以及基于所述接收天线分集测量，为使用和/或组合中的至少一个选择一个或多个接收天线

公开(公告)号：US12255740B2

公开(公告)日：2025-03-18

申请号：US17381493

申请日：2021-07-21

Applicant: QUALCOMM Incorporated

Inventor： Mostafa Khoshnevisan ,  Jing Sun ,  Kapil Bhattad ,  Xiaoxia Zhang

IPC: H04L1/14 ,  H04L1/1607 ,  H04L1/1812 ,  H04W72/23

Abstract: Methods, systems, and devices for wireless communications are described that support group-based acknowledgment feedback techniques. Two or more different groups of downlink transmissions may each have an associated group-based acknowledgment feedback, and a base station may transmit downlink control information to a UE that indicates one or more parameters that are used to determine which downlink transmissions are to be reported in the group-based feedback. Based on the parameters in the downlink control information, the UE may determine the feedback to be reported, and a timing for when to transmit the feedback to the base station.

公开(公告)号：US12237895B2

公开(公告)日：2025-02-25

申请号：US16922916

申请日：2020-07-07

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Ananta Narayanan Thyagarajan ,  Xiaoxia Zhang ,  Kapil Bhattad ,  Pravjyot Singh Deogun

IPC: H04B7/06 ,  H04L5/00 ,  H04W72/23 ,  H04W72/53

Abstract: This disclosure provides systems, methods, and apparatuses for the identification of a channel state information reference signal (CSI-RS) resource. In some aspects, a UE that receives the CSI-RS may determine CSI feedback based at least in part on the CSI-RS after detecting the CSI-RS resource that includes the CSI-RS. Signaling or techniques for when no CSI-RS is detected (such as when the base station fails a channel access operation for all available CSI-RS resources) are also provided. Furthermore, approaches for rate matching for a shared channel around CSI-RS resources or for CSI interference management (CSI-IM) resources are provided, as well as CSI reporting approaches for cases when the UE fails to transmit CSI feedback due to a failed channel access operation, such as a triggered or re-triggered CSI report.

公开(公告)号：US12150172B2

公开(公告)日：2024-11-19

申请号：US17654649

申请日：2022-03-14

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Xiaoxia Zhang ,  Tanumay Datta ,  Ananta Narayanan Thyagarajan ,  Jing Sun

IPC: H04W74/0808 ,  H04W16/14 ,  H04W74/00

Abstract: Wireless communications systems and methods are provided. A method of wireless communication may include performing a first listen-before-talk (LBT) procedure associated with a channel, wherein a channel occupancy time (COT) for the channel is acquired based on the first LBT being successful, communicating a first communication signal in a first link direction during the COT, switching from the first link direction to a second link direction different from the first link direction, and communicating after the switching, a second communication signal in the second link direction without performing a second LBT.

公开(公告)号：US12133271B2

公开(公告)日：2024-10-29

申请号：US17755565

申请日：2020-11-04

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Ananta Narayanan Thyagarajan ,  Kapil Bhattad ,  Xiaoxia Zhang

IPC: H04W74/0833 ,  H04W24/08 ,  H04W72/0446 ,  H04W74/00 ,  H04W74/08

CPC classification number: H04W74/0841 ,  H04W24/08 ,  H04W72/0446 ,  H04W74/006 ,  H04W74/0866

Abstract: Wireless communications systems and methods related frame based equipment (FBE) communications in a wireless communication network are provided. A user equipment (UE) receives, from a base station (BS), system information including a frame based equipment (FBE) configuration indicating a plurality of frame periods. Each frame period of the plurality of frame periods includes a gap period, where a start or an end of the gap period of a first frame period of the plurality of frame periods is aligned to a beginning of a radio frame. The UE communicates, with the BS, a communication based on the FBE configuration.

公开(公告)号：US12132673B2

公开(公告)日：2024-10-29

申请号：US18169106

申请日：2023-02-14

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Tanumay Datta ,  Ananta Narayanan Thyagarajan ,  Jing Sun ,  Xiaoxia Zhang ,  Zhifei Fan

IPC: H04L5/00 ,  H04L27/26 ,  H04W72/21

CPC classification number: H04L5/0046 ,  H04L5/0007 ,  H04L27/2604 ,  H04W72/21

Abstract: Certain aspects of the present disclosure provide techniques for enhanced physical uplink control channel (PUCCH) transmission. In some cases, a UE obtains payload bits to be conveyed in a physical uplink control channel (PUCCH) transmission via an interlace of resource blocks (RBs), determines a group of the RBs available to the UE, and transmits the payload bits using the determined group of RBs, wherein the transmitting involves modulating different RBs of the group by at least one of different payload bits or sequences.