公开(公告)号：US20190110280A1

公开(公告)日：2019-04-11

申请号：US16215493

申请日：2018-12-10

Applicant: QUALCOMM Incorporated

Inventor： Sony AKKARAKARAN ,  Tao LUO ,  Wanshi CHEN ,  Hao XU ,  Peter GAAL ,  Yi HUANG ,  Renqiu WANG ,  Seyong PARK

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

Abstract: Aspects of the disclosure relate to wireless communication systems configured to provide techniques for strategically placing a sounding reference signal (SRS) within a slot to improve the decoding timeline. Aspects of the disclosure further relate to wireless communication systems configured to optimize the physical downlink control channel (PDCCH) search space within a slot to improve the decoding timeline. Features may also include placing the SRS near the end of the slot, such as after the uplink user data traffic and the corresponding uplink demodulation reference signal (DMRS). In addition, features may also include identifying the PDCCH search space within the slot based on at least a slot index of the slot. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US20190090113A1

公开(公告)日：2019-03-21

申请号：US16195338

申请日：2018-11-19

Applicant: QUALCOMM Incorporated

Inventor： Alberto RICO ALVARINO ,  Wanshi CHEN ,  Hao XU

IPC: H04W4/70 ,  H04L5/00 ,  H04W76/28 ,  H04W4/90 ,  H04W4/06 ,  H04W68/00 ,  H04W72/04 ,  H04W74/08

Abstract: Certain aspects of the present disclosure generally relate to wireless communications and more specifically to search space configuration in systems utilizing devices with limited communications resources, such as machine type communication (MTC) devices and enhanced MTC (eMTC) devices. An example method generally includes receiving a physical random access channel (PRACH) signal from a first user equipment (UE) on a first narrowband region within a wider system bandwidth and transmitting, in response to the PRACH signal, a random access response (RAR) signal in a first search space in a second narrowband region in at least a first subframe.

公开(公告)号：US20180359750A1

公开(公告)日：2018-12-13

申请号：US16055860

申请日：2018-08-06

Applicant: QUALCOMM Incorporated

Inventor： Chao WEI ,  Wanshi CHEN ,  Xiaoxia ZHANG ,  Neng WANG ,  Hao XU ,  Peter GAAL

IPC: H04W72/04 ,  H04L5/00 ,  H04W52/04 ,  H04L1/00 ,  H04L1/18

CPC classification number: H04W72/0446 ,  H04L1/0073 ,  H04L1/1812 ,  H04L1/1854 ,  H04L1/1861 ,  H04L5/0055 ,  H04W52/04 ,  H04W72/04 ,  H04W72/0406

Abstract: Aspects of the present disclosure relate to techniques that may help enable the determination of uplink resource allocation in systems that support dynamic uplink-downlink subframe configurations. An example method generally includes receiving signaling indicating a dynamic uplink-downlink (UL-DL) subframe configuration, determining hybrid automatic repeat request (HARQ) acknowledgment/negative acknowledgment (ACK/NACK) timing based on a reference UL-DL subframe configuration, and determining HARQ resource allocation based on the dynamic UL-DL subframe configuration.

公开(公告)号：US20180331802A1

公开(公告)日：2018-11-15

申请号：US15976712

申请日：2018-05-10

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Alberto RICO ALVARINO ,  Hao XU

IPC: H04L5/00 ,  H04W36/08 ,  H04W36/00

CPC classification number: H04L5/0048 ,  H04W36/0005 ,  H04W36/08

Abstract: Wireless communications systems and methods related to system information communications and decoding are provided. In one embodiment, a wireless communication device receives one or more known bits. The wireless communication device receives a first encoded information block. The wireless communication device decodes the first encoded information block to generate a first information block based on the one or more known bits. In one embodiment, a wireless communication device receives a first encoded information block including a first bit pattern. The wireless communication device receives a second encoded information block including a second bit pattern. The wireless communication device jointly decodes the first encoded information block and the second encoded information block based on an assumption that a difference between the first bit pattern and the second bit pattern is within a subset of a plurality of bit-change patterns.

公开(公告)号：US20180323892A1

公开(公告)日：2018-11-08

申请号：US15969245

申请日：2018-05-02

Applicant: QUALCOMM Incorporated

Inventor： Renqiu WANG ,  Seyong PARK ,  Yi HUANG ,  Peter GAAL ,  Hao XU

IPC: H04J11/00 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04J11/00 ,  H04J2011/0009 ,  H04L1/00 ,  H04L5/001 ,  H04L5/0046 ,  H04L5/0051 ,  H04L5/0055 ,  H04L27/2604 ,  H04L27/2607 ,  H04L27/2613 ,  H04L27/2615 ,  H04L27/2637

Abstract: Aspects of the disclosure relate to a new radio (NR) single symbol design in which reference signals and data tones are frequency division multiplexed (FDM). In a particular aspect of the disclosure, a different encoding sequence is assigned to each possible value of an information element (IE) such that a minimum distance between encoding sequences corresponding to any pair of possible values is maximized. A symbol corresponding to a particular value of the IE is then transmitted. Here, the symbol is configured according to a sequence selected from a set of sequences corresponding to the particular value of the IE, such that the symbol comprises a plurality of reference signals FDM with a plurality of FDM resource elements.

公开(公告)号：US20180279235A1

公开(公告)日：2018-09-27

申请号：US15992047

申请日：2018-05-29

Applicant: QUALCOMM Incorporated

Inventor： Wanshi CHEN ,  Peter GAAL ,  Hao XU

IPC: H04W52/36 ,  H04B7/024 ,  H04W52/14 ,  H04W52/24

CPC classification number: H04W52/365 ,  H04B7/024 ,  H04W52/146 ,  H04W52/244 ,  H04W52/367

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for uplink power control when at least two separate power control algorithms are utilized for adjusting transmission power of uplink transmissions on one or more uplink channels to one or more access points. The method includes transmitting one or more power headroom report (PHR) based on channel and/or system parameters. In addition, methods are presented to match power control for uplink channels when different power control algorithms are used for those uplink channels. Furthermore, methods are proposed to compensate for a switch between reference signals on which the power control algorithms are based.

公开(公告)号：US20180262995A1

公开(公告)日：2018-09-13

申请号：US15913513

申请日：2018-03-06

Applicant: QUALCOMM Incorporated

Inventor： Sony AKKARAKARAN ,  Tao LUO ,  Peter GAAL ,  Timo Ville VINTOLA ,  Hao XU

IPC: H04W52/24 ,  H04W72/12 ,  H04W52/28 ,  H04B7/06

Abstract: Aspects of the present disclosure provide techniques for managing unwanted transmissions by a wireless communications device, such as spurious transient transmissions caused by changing a power level of a transmitter. An exemplary method includes determining, based on one or more parameters, an action to reduce an impact of a spurious transmission by the UE, wherein the spurious transmission relates to at least one of changing a transmit power level at the UE or switching one or more radio components at the UE, and taking the determined action to reduce the impact.

公开(公告)号：US20180262311A1

公开(公告)日：2018-09-13

申请号：US15917566

申请日：2018-03-09

Applicant: QUALCOMM Incorporated

Inventor： Renqiu WANG ,  Jing JIANG ,  Hao XU ,  Chong LI

IPC: H04L5/00 ,  H04W72/14

CPC classification number: H04L5/0051 ,  H04L5/0044 ,  H04L5/0055 ,  H04L5/0096 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/1236 ,  H04W72/1242 ,  H04W72/1289 ,  H04W72/14

Abstract: In some circumstances, a URLLC may preempt resource. An apparatus may be configured to receive a set of resource blocks from a base station including at least one of eMBB data or URLLC data in a PDSCH. The apparatus may receive a URLLC indicator from the base station. The URLLC indicator may be received embedded within the URLLC data or received separate from the URLLC data within DCI of a PDCCH. The URLLC indicator indicates whether the set of resource blocks includes at least part of the URLLC data. The apparatus may determine, based on the URLLC indicator, whether the set of resource blocks includes the URLLC data and processing the set of resource blocks based on a result of determining whether the set of resource blocks includes the URLLC data.

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.