公开(公告)号：US20200153551A1

公开(公告)日：2020-05-14

申请号：US16733066

申请日：2020-01-02

Applicant: QUALCOMM Incorporated

Inventor： Vijayvaradharaj TIRUCHERAI MURALIDHARAN ,  Gowrisankar SOMICHETTY ,  Shashidhar VUMMINTALA ,  Kapil BHATTAD ,  Dominique Francois BRESSANELLI

IPC: H04L1/00 ,  H04L5/00 ,  H04W72/12 ,  H03M13/00

Abstract: Aspects of the disclosure relate to techniques for mitigating the decoding errors observed at the receiver as a result of puncturing symbols between consecutive subframes having the same transmission direction. To reduce the decoding errors, a plurality of transmission options, each including a number of resource blocks and a modulation and coding scheme (MCS), may be identified. In addition, each transmission option may be associated with one or more puncturing patterns that hinder decoding of a codeword at the receiver. The base station or user equipment (UE) may then select or modify at least one aspect of a scheduling decision involving the communication of the codeword in a given subframe of at least two consecutive subframes to minimize decoding errors. For example, a selected puncturing pattern or a transport block size associated with a selected transmission option may be modified.

公开(公告)号：US20180248673A1

公开(公告)日：2018-08-30

申请号：US15710739

申请日：2017-09-20

Applicant: QUALCOMM Incorporated

Inventor： Kapil BHATTAD ,  Xiao feng WANG ,  Alberto RICO ALVARINO ,  Hao XU

IPC: H04L5/14 ,  H04L5/00 ,  H04W72/04

Abstract: There is a need to support narrowband TDD frame structure for narrowband communications. The present disclosure provides a solution by supporting one or more narrowband TDD frame structure(s) for narrowband communications. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. In one aspect, the apparatus may receive information associated with a narrowband TDD frame structure. The apparatus may also transmit an uplink transmission a predetermined number of times using a first scrambling sequence. In one aspect, the first scrambling sequence may be determined using a first number of least significant bits (LSBs) associated with a first radio frame. In another aspect, the first number of LSBs may be larger than a second number of LSBs used in a second scrambling sequence associated with a narrowband frequency-division duplex (FDD) uplink transmission.

公开(公告)号：US20180248672A1

公开(公告)日：2018-08-30

申请号：US15710731

申请日：2017-09-20

Applicant: QUALCOMM Incorporated

Inventor： Kapil BHATTAD ,  Xiao feng WANG ,  Alberto RICO ALVARINO ,  Hao XU

IPC: H04L5/14 ,  H04L5/00 ,  H04L1/00 ,  H04W72/04

Abstract: There is a need to support narrowband TDD frame structure for narrowband communications. The present disclosure provides a solution by supporting one or more narrowband TDD frame structure(s) for narrowband communications. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. In a further aspect, the apparatus may receive information associated with a narrowband TDD frame structure having a first contiguous uplink transmission duration. The apparatus may transmit a first portion of an uplink transmission comprising a first number of slots in the first contiguous uplink transmission duration. In certain aspects, the uplink transmission may have a duration longer than the first contiguous uplink transmission duration.

公开(公告)号：US20160323896A1

公开(公告)日：2016-11-03

申请号：US15208560

申请日：2016-07-12

Applicant: QUALCOMM INCORPORATED

Inventor： Kapil BHATTAD ,  Dhananjay A. GORE ,  Durga Prasad MALLADI ,  Yongbin WEI ,  Peter GAAL

IPC: H04W72/08 ,  H04B17/345 ,  H04W72/04 ,  H04L5/14

CPC classification number: H04W72/082 ,  H04B17/345 ,  H04L1/0026 ,  H04L1/1829 ,  H04L5/14 ,  H04W36/0088 ,  H04W36/20 ,  H04W36/30 ,  H04W72/0413 ,  H04W84/042

Abstract: In wireless communication systems, a determination may be made whether to hand off a user equipment (UE) based on whether the UE encounters time varying interference, such as UE to UE interference. The time varying interference may be present only in a specific set of time/frequency resources or subframes. Measurement reporting may be restricted to time/frequency resources which do not experience the time varying interference.

公开(公告)号：US20140036797A1

公开(公告)日：2014-02-06

申请号：US13829600

申请日：2013-03-14

Applicant: QUALCOMM INCORPORATED

Inventor： Arul Durai Murugan PALANIVELU ,  Kapil BHATTAD ,  Dhananjay Ashok GORE ,  Ashok MANTRAVADI

IPC: H04W72/08

CPC classification number: H04W72/085 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/0028

Abstract: Certain aspects of the present disclosure relate to techniques for reporting Channel Quality Indicator (CQI). In certain aspects, a User Equipment (UE) may schedule switch from at least a first set of zero or more antennas used by the UE, to at least one second set of zero or more antennas, wherein the first and second sets differ by at least one antenna. The UE may determine a Channel Quality Indicator (CQI) to be reported from the UE for use at a base station in a subsequent CQI subframe set, based at least on the scheduled switch. The UE may thereafter transmit the CQI to the base station.

Abstract translation: 本公开的某些方面涉及用于报告信道质量指示符（CQI）的技术。 在某些方面，用户设备（UE）可以将至少由UE使用的零个或多个天线的第一组的调度调度到零个或多个天线的至少一个第二组，其中第一组和第二组在 至少一个天线。 UE可以基于至少基于所调度的交换机来确定要在UE中报告的信道质量指示符（CQI）以在后续CQI子帧集合中在基站处使用。 然后，UE可以将CQI发送到基站。

公开(公告)号：US20140023004A1

公开(公告)日：2014-01-23

申请号：US13945761

申请日：2013-07-18

Applicant: QUALCOMM Incorporated

Inventor： Raj K. KUMAR ,  Kapil BHATTAD ,  Dhananjay A. GORE

IPC: H04W72/08

CPC classification number: H04W72/082 ,  H04L1/0007 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/1854 ,  H04L1/1887 ,  H04L1/1893

Abstract: A method of wireless communication includes determining a set of subframes with a reduced likelihood of being received as uplink transmissions of a first user equipment (UE). The method also includes scheduling uplink transmissions of the first UE by scheduling uplink control information (UCI) on subframes other than the determined set of subframes.

Abstract translation: 一种无线通信方法包括：将第一用户设备（UE）的上行链路传输作为被接收的可能性降低的一组子帧进行确定。 该方法还包括通过在除所确定的子帧集之外的子帧上调度上行链路控制信息（UCI）来调度第一UE的上行链路传输。

公开(公告)号：US20140011507A1

公开(公告)日：2014-01-09

申请号：US14024601

申请日：2013-09-11

Applicant: Qualcomm Incorporated

Inventor： Kapil BHATTAD ,  Ravi PALANKI

IPC: H04L5/00

CPC classification number: H04L5/0073 ,  H04L1/0001 ,  H04L1/1867 ,  H04L5/0053 ,  H04W28/04 ,  H04W28/18 ,  H04W72/0406 ,  H04W72/082

Abstract: Systems and methodologies are described that facilitate improved resource partitioning and interference management in a wireless communication system. Techniques are described herein for the transmission and use of various types of signaling, such as Access Request commands, Reverse Link Special Resource Utilization Message (R-SRUM) signaling, Forward Link Special Resource Utilization Message (F-SRUM) signaling, and the like, for managing interference associated with range extension, restricted association networks, and other jamming scenarios. As described herein, downlink resource coordination and interference management are accomplished through the use of Access Request or R-SRUM signaling conducted in a unicast or broadcast fashion, and uplink resource coordination and interference management are accomplished through the use of F-SRUM signaling. As further described herein, a clean communication channel such as a Low Reuse Preamble (LRP) channel can be utilized for interference management signaling and/or leveraged for determining timing of various signaling messages.

Abstract translation: 描述了有助于在无线通信系统中改进资源划分和干扰管理的系统和方法。 本文描述了用于传输和使用各种类型的信令的技术，诸如接入请求命令，反向链路特殊资源利用消息（R-SRUM）信令，前向链路特殊资源利用消息（F-SRUM）信令等等 用于管理与范围扩展相关的干扰，受限关联网络和其他干扰场景。 如本文所述，通过使用以单播或广播方式进行的接入请求或R-SRUM信令来实现下行链路资源协调和干扰管理，并且通过使用F-SRUM信令来实现上行链路资源协调和干扰管理。 如本文进一步描述的，诸如低重用前导码（LRP）信道的干净通信信道可以用于干扰管理信令和/或用于确定各种信令消息的定时。

公开(公告)号：US20240430036A1

公开(公告)日：2024-12-26

申请号：US18751149

申请日：2024-06-21

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia ZHANG ,  Jing SUN ,  Kapil BHATTAD

IPC: H04L1/00 ,  H04J13/00 ,  H04J13/12 ,  H04L27/26

Abstract: Wireless communications systems and methods related user multiplexing with discrete Fourier transform (DFT) precoded frequency interlaces are provided. A first wireless communication device identifies a first block-spreading code from a set of block-spreading codes associated with user multiplexing. The first wireless communication device communicates, with a second wireless communication device using a frequency interlace in a frequency spectrum, a first communication signal including a first block of information symbols spread across a set of resource blocks (RBs) within the frequency interlace based on the first block-spreading code. The first communication signal is generated by block-spreading the first block of information symbols based on the first block-spreading code to produce a first block of spread information symbols, performing a DFT on the first block of spread information symbols, and mapping the first block of spread information symbols to the set of RBs.

公开(公告)号：US20240389144A1

公开(公告)日：2024-11-21

申请号：US18785948

申请日：2024-07-26

Applicant: QUALCOMM Incorporated

Inventor： Jing SUN ,  Xiaoxia ZHANG ,  Kapil BHATTAD

IPC: H04W74/0808 ,  H04L1/1812 ,  H04L5/00 ,  H04W72/0446 ,  H04W72/23 ,  H04W76/27

Abstract: Wireless communications systems and methods related to downlink control channel communications in a wireless communication network are provided. A first wireless communication device communicates, with a second wireless communication device, a configuration indicating a first group of one or more search spaces and a second group of one or more search spaces, where at least one of the first group or the second group includes at least one search space not included in an other of the first group or the second group. The first wireless communication device communicates, with the second wireless communication device, a first downlink control information (DCI) message in a first search space of the first group of one or more search spaces. The first wireless communication device communicates, with the second wireless communication device, a second DCI message in a second search space of the second group of one or more search spaces.

公开(公告)号：US20240260045A1

公开(公告)日：2024-08-01

申请号：US18433297

申请日：2024-02-05

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia ZHANG ,  Zhifei FAN ,  Kapil BHATTAD ,  Jing SUN ,  Tamer KADOUS ,  Srinivas YERRAMALLI

IPC: H04W72/23 ,  H04L1/1607 ,  H04L1/1812 ,  H04L1/1822 ,  H04L1/1829 ,  H04L5/00

CPC classification number: H04W72/23 ,  H04L1/1685 ,  H04L1/1812 ,  H04L1/1854 ,  H04L1/1861 ,  H04L1/1864 ,  H04L5/0055 ,  H04L1/1822

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) and a base station may communicate in an unlicensed spectrum (e.g., a shared radio frequency spectrum band). As such, the UE may determine a codebook size for transmitting hybrid access request (HARQ) acknowledgement (ACK) feedback with respect to the unlicensed spectrum. Accordingly, the UE may base the HARQ ACK codebook size on a number of HARQ processes with which the UE has been configured. Additionally or alternatively, the UE may base the HARQ ACK codebook size on a number and/or duration of downlink channel monitoring occasions indicated by the base station. In some cases, the UE may base the HARQ ACK codebook size on a combination of the techniques described herein.