公开(公告)号：US20130107805A1

公开(公告)日：2013-05-02

申请号：US13665302

申请日：2012-10-31

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Yongbin Wei ,  Durga Prasad Malladi ,  Taesang Yoo ,  Lu Zhao ,  Myriam Rajih ,  Hendrik Schoeneich

IPC: H04W4/00

CPC classification number: H04L25/03891 ,  H04J11/0023 ,  H04L25/03993

Abstract: A system for wireless communication reduces implementation complexity for symbol level interference cancellation as applied to physical control and data channels, such as the physical downlink shared channel (PDSCH) and physical downlink control channel (PDCCH). A user equipment (UE) categorizes tones of a signal into tone groups. A different noise whitening matrix is applied to each tone group for demodulation and decoding of the signal.

Abstract translation: 用于无线通信的系统降低了应用于诸如物理下行链路共享信道（PDSCH）和物理下行链路控制信道（PDCCH）的物理控制和数据信道的符号级干扰消除的实现复杂度。 用户设备（UE）将信号的音调分类为音调组。 将不同的噪声白化矩阵应用于每个音调组以进行信号的解调和解码。

公开(公告)号：US12069691B2

公开(公告)日：2024-08-20

申请号：US17938133

申请日：2022-10-05

Applicant: QUALCOMM Incorporated

Inventor： Yu Zhang ,  Hao Xu ,  Chao Wei ,  Peng Cheng ,  Wanshi Chen ,  Peter Gaal ,  Durga Prasad Malladi

IPC: H04W72/23 ,  H04L5/00 ,  H04W72/044

CPC classification number: H04W72/23 ,  H04L5/0055 ,  H04W72/046

Abstract: Certain aspects of the present disclosure generally relate to wireless communication. More particularly, certain aspects of the present disclosure relate to early termination of a downlink channel repetition transmission, early termination of an uplink channel repetition, and/or determination of a plurality of beams for a repetition transmission. Numerous other aspects are provided.

公开(公告)号：US11357035B2

公开(公告)日：2022-06-07

申请号：US14699811

申请日：2015-04-29

Applicant: QUALCOMM Incorporated

Inventor： Yongbin Wei ,  Durga Prasad Malladi ,  Tao Luo

IPC: H04W72/04 ,  H04W72/12 ,  H04L5/00

Abstract: Certain aspects of the disclosure relate to performing cross-subframe control channel signaling for wireless communications. A method may be provided for signaling downlink control channel resource allocations and/or physical control format indications in a subframe different from the subframe in which a downlink data transmission may be performed. In one aspect, the method may include transmitting PDCCH and/or PCFICH during a first subframe to allocate resources for a PDSCH during a second subframe and transmitting the PDSCH during the second subframe.

公开(公告)号：US11343680B2

公开(公告)日：2022-05-24

申请号：US14865891

申请日：2015-09-25

Applicant: QUALCOMM Incorporated

Inventor： Madhavan Srinivasan Vajapeyam ,  Aleksandar Damnjanovic ,  Durga Prasad Malladi ,  Yongbin Wei

IPC: H04W16/14 ,  H04W74/08 ,  H04W28/02 ,  H04L47/27 ,  H04W76/19

Abstract: Techniques are described for wireless communication. One method includes winning a contention for access to an unlicensed radio frequency spectrum band, transmitting a request message upon winning the contention for access to the unlicensed radio frequency spectrum band, and receiving a response message over the unlicensed radio frequency spectrum band. The request message is transmitted by a user equipment (UE) on an enhanced physical random access channel (ePRACH), to access a cell that operates in the unlicensed radio frequency spectrum band. The response message is received in response to transmitting the request message.

公开(公告)号：US11212779B2

公开(公告)日：2021-12-28

申请号：US14858960

申请日：2015-09-18

Applicant: QUALCOMM Incorporated

Inventor： Shimman Patel ,  Wanshi Chen ,  Peter Gaal ,  Aleksandar Damnjanovic ,  Yongbin Wei ,  Durga Prasad Malladi ,  Hao Xu

IPC: H04W72/04 ,  H04L5/00

Abstract: A data structure for managing user equipment communications in a wireless communication system is presented. In some examples, the data structure may include one or more resource element blocks into which a frequency bandwidth of a downlink channel is divided within a symbol that defines a transmission time interval in a downlink subframe. Furthermore, the data structure may include a control region and a data region within at least one resource element block of the one or more resource element blocks. Additionally, the data structure may include a downlink resource grant, located within the control region, for a user equipment served by the downlink channel. In an additional aspect, a network entity and method for generating the example data structure are provided.

公开(公告)号：US11166312B2

公开(公告)日：2021-11-02

申请号：US15975641

申请日：2018-05-09

Applicant: QUALCOMM Incorporated

Inventor： Durga Prasad Malladi ,  Shailesh Patil

IPC: H04W74/08 ,  H04W16/28 ,  H04W4/40 ,  H04L5/00 ,  H04W72/04 ,  H04W4/70 ,  H04W72/02 ,  H04W84/00

Abstract: Methods, systems, and devices for wireless communication are described. A 5G device may decode a control channel transmission of a safety message in a vehicle-to-everything system during a first portion of a time period. The 5G device may identify, based at least in part on the decoding, a pool of resource blocks (RBs) that are available for the time period. The 5G device may select a subset of RBs from the available pool of RBs for a transmission during a second portion of the time period.

公开(公告)号：US11102288B2

公开(公告)日：2021-08-24

申请号：US16290415

申请日：2019-03-01

Applicant: QUALCOMM Incorporated

Inventor： Siddhartha Mallik ,  Ravi Palanki ,  Durga Prasad Malladi ,  Naga Bhushan

IPC: H04L29/08 ,  H04W8/00

Abstract: Techniques for performing peer discovery in a wireless network are described. A device may perform peer discovery to detect and identify other devices of interest. In an aspect, the device may perform peer discovery based on a hybrid mode that includes autonomous peer discovery and network-assisted peer discovery. In another aspect, the device may perform peer discovery based on a push mode and a pull mode. For the push mode, the device may occasionally transmit and/or receive a peer detection signal. For the pull mode, the device may transmit and/or receive a peer discovery request when triggered. In yet another aspect, the device may perform event-triggered peer discovery (e.g., for the pull mode). In yet another aspect, the device may perform peer discovery using both a downlink spectrum and an uplink spectrum. In yet another aspect, the device may transmit a peer detection signal in a manner to improve detection and/or increase payload.

公开(公告)号：US10999886B2

公开(公告)日：2021-05-04

申请号：US15232672

申请日：2016-08-09

Applicant: QUALCOMM Incorporated

Inventor： Peter Gaal ,  Srinivas Yerramalli ,  Durga Prasad Malladi ,  Yongbin Wei ,  Alexei Yurievitch Gorokhov ,  Brian Banister ,  Michael Lee McCloud ,  Tao Luo ,  Supratik Bhattacharjee ,  Chengjin Zhang ,  Ravi Teja Sukhavasi

IPC: H04W76/28 ,  H04L5/14 ,  H04L5/00 ,  H04B7/06 ,  H04W72/00 ,  H04W72/04 ,  H04W72/14 ,  H04L27/00

Abstract: Various aspects related to techniques for harmonization between common reference signal (CRS) and demodulation reference signal (DM-RS) based transmission modes (TMs) in unlicensed spectrum are described. In one aspect, a downlink/uplink (DL/UL) subframe configuration may be signaled for each subframe. Information provided by the DL/UL subframe configuration may indicate whether the respective downlink subframe is a single-frequency network (MBSFN) subframe (associated with DM-RS-based TM) or a non-MBSFN subframe (associated with CRS-based TM). In another aspect, periodic as well as aperiodic channel state information (CSI) reporting requests may be supported. In yet another aspect, discontinued reception (DRX) wake ups for unlicensed carriers may be explicitly or implicitly indicated to a user equipment (UE) via a carrier in a licensed spectrum.

公开(公告)号：US10959226B2

公开(公告)日：2021-03-23

申请号：US16678678

申请日：2019-11-08

Applicant: QUALCOMM Incorporated

Inventor： Jelena Damnjanovic ,  Aleksandar Damnjanovic ,  Taesang Yoo ,  Siddhartha Mallik ,  Madhavan Srinivasan Vajapeyam ,  Durga Prasad Malladi ,  Yongbin Wei

IPC: H04W72/04 ,  H04L5/00 ,  H04W76/27 ,  H04W72/08 ,  H04W72/14 ,  H04W88/08

Abstract: Techniques are described for preempting resource allocations to one or more UEs in the event that delay sensitive data is received. A resource allocation of a number of symbols may be granted to a first user equipment (UE) for first associated data to be transmitted. Subsequently, data may be received for a second UE that is more delay sensitive than the first data. The resource allocation to the first UE may be preempted, and resources allocated to the second UE for the second data within a variable length transmission time interval (TTI) of the resource allocation to the first UE. UEs may monitor for preemption during transmissions to other UEs in order to receive new resource grants associated with the preempted resource grant. Whether a UE monitors transmissions for preemption may be determined based on a quality or service (QoS) of the UE.

公开(公告)号：US10803754B2

公开(公告)日：2020-10-13

申请号：US16042599

申请日：2018-07-23

Applicant: QUALCOMM Incorporated

Inventor： Junyi Li ,  Arthur Miller ,  Durga Prasad Malladi

IPC: G08G5/00 ,  H04B7/185 ,  H04W4/029 ,  H04W4/46 ,  H04W76/14 ,  H04W16/28 ,  H04B7/0413 ,  H04B7/08 ,  H04W4/42 ,  H04W24/08 ,  H04W88/18 ,  H04B7/06 ,  H04W8/00 ,  H04W84/18

Abstract: Techniques are provided herein for procedures for establishing an aircraft-to-aircraft mesh network during flight using high-bandwidth directional communication beams. A first aircraft may be able to utilize flight data about a second aircraft to reduce a computational cost of a beam discovery procedure used to establish directional communication beams in the aircraft-to-aircraft mesh network. For example, the first aircraft may receive flight data (e.g., position information, heading, altitude, etc.) using an air traffic control system. The first aircraft may determine one or more predicted locations of the second aircraft based on the flight data. The first aircraft may use the predicted locations to transmit directional discovery beams to only those locations where the second aircraft is likely to be. Upon receiving at least one of the directional discovery beams, the second aircraft and the first aircraft may establish a communication link of the aircraft-to-aircraft mesh network.