公开(公告)号：US20180091197A1

公开(公告)日：2018-03-29

申请号：US15708727

申请日：2017-09-19

Applicant: QUALCOMM Incorporated

Inventor： Yi HUANG ,  Wei ZENG ,  Jay Kumar SUNDARARAJAN

IPC: H04B7/0456 ,  H04L25/02

CPC classification number: H04B7/0456 ,  H04B7/04 ,  H04B7/0417 ,  H04L25/0224

Abstract: Certain aspects of the present disclosure provide techniques for determining precodings of signals transmitted in a wireless communications system. According to certain aspects, a method of wireless communication by a user equipment (UE) is provided. The method generally includes receiving a precoded reference signal (RS) from a base station (BS), determining a first precoding used by the BS to transmit the RS, and determining, based on the first precoding, a second precoding for use by the UE to transmit a signal to the BS.

公开(公告)号：US20200059926A1

公开(公告)日：2020-02-20

申请号：US16664708

申请日：2019-10-25

Applicant: QUALCOMM Incorporated

Inventor： Jing JIANG ,  Muhammad Nazmul ISLAM ,  Wei ZENG ,  Sundar SUBRAMANIAN ,  Joseph Binamira SORIAGA ,  Juergen CEZANNE ,  Tingfang JI ,  Bilal SADIQ ,  Junyi LI

IPC: H04W72/04 ,  H04W72/12 ,  H04W72/08 ,  H04L5/00 ,  H04W72/00 ,  H04L5/14

Abstract: Methods and apparatuses for wireless communication are provided. A transmitting apparatus receives an indication to use multiple subframes to send uplink control information, codes the uplink control information over the multiple subframes based on the indication, and sends the coded uplink control information via the multiple subframes. Sending the coded uplink control information includes transmitting acknowledgement information (ACK) of a current downlink-centric self-contained subframe in an uplink acknowledgement portion of the current downlink-centric self-contained subframe, bundling ACK bits of multiple downlink-centric self-contained subframes and encoding the bundled ACK bits to generate parity acknowledgement bits associated with systematic acknowledgement bits, transmitting the systematic acknowledgement bits in each uplink acknowledgement portion of the multiple downlink-centric self-contained subframes, and transmitting the parity acknowledgement bits associated with the acknowledgement information bits of the multiple downlink-centric self-contained subframes in an uplink-centric self-contained subframe that is sequentially subsequent to the multiple downlink-centric self-contained subframes.

公开(公告)号：US20200007375A1

公开(公告)日：2020-01-02

申请号：US16467872

申请日：2018-01-06

Applicant: Yu ZHANG ,  Chao WEI ,  Hao XU ,  Wanshi CHEN ,  Wei ZENG ,  QUALCOMM Incorporated

Inventor： Yu ZHANG ,  Chao WEI ,  Hao XU ,  Wanshi CHEN ,  Wei ZENG

IPC: H04L27/26 ,  H04L25/02 ,  H04L5/00

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for transmitting sounding reference signals (SRS) in communications systems operating according to new radio (NR) technologies. An exemplary method that a user equipment (UE) may perform includes determining whether to transmit a sounding reference signal (SRS) using a discrete Fourier transform (DFT) spread orthogonal frequency domain multiplexing (DFT-S-OFDM) waveform or a cyclic prefix orthogonal frequency domain multiplexing (CP-OFDM) waveform, and transmitting the SRS using the determined waveform.

公开(公告)号：US20190313430A1

公开(公告)日：2019-10-10

申请号：US16400743

申请日：2019-05-01

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Jing JIANG ,  Seyong PARK ,  Hao XU ,  Wanshi CHEN ,  Wei ZENG ,  Peter GAAL ,  Tingfang JI

IPC: H04W72/12 ,  H04L1/00 ,  H04L25/02 ,  H04L27/26 ,  H04L5/00 ,  H04W76/28 ,  H04W52/18 ,  H04W76/27

Abstract: The present disclosure provides for adaptive resource management in new radio operations that favors the usage of resources for pilot signals and channel estimation in the transition slots of a slot burst, and the transmission of data in the subsequent slots of the slot burst. A device such as a user equipment (UE) and/or a base station may determine that the UE is operating in a transition state. The device may adapt a first numerology including a first number of symbols per slot used for transmission in the transition slots during the transition state, to a second scaled numerology including a second number of symbols per slot used for transmission in the subsequent slots after the transition state. A ratio of reference signal symbols to data symbol symbols may be greater in the transition slots than in the subsequent slots.

公开(公告)号：US20190123950A1

公开(公告)日：2019-04-25

申请号：US16228168

申请日：2018-12-20

Applicant: QUALCOMM Incorporated

Inventor： Renqiu WANG ,  Hao XU ,  Jing JIANG ,  Yi HUANG ,  Wei ZENG ,  Wanshi CHEN ,  Tingfang JI

IPC: H04L27/26 ,  H04B7/0404 ,  H04B7/06 ,  H04B7/0413 ,  H04B7/0417

Abstract: A configurable new radio (NR) uplink (UL) transmission may use transmit diversity. A user equipment (UE) may identify an uplink transmission of at least one stream as using one of cyclic prefix orthogonal frequency division multiplexing or discrete Fourier transform spread orthogonal frequency division multiplexing. The UE may apply a precoding matrix to the at least one identified stream. The precoding matrix changes over time. The precoding matrix may change based on closed loop feedback, a precoding cycling pattern, and/or a code division multiplexing group. The UE may transmit the at least one identified stream from multiple antennas according to the applied precoding matrix.

公开(公告)号：US20180227101A1

公开(公告)日：2018-08-09

申请号：US15713270

申请日：2017-09-22

Applicant: QUALCOMM Incorporated

Inventor： Seyong PARK ,  Wanshi CHEN ,  Wei ZENG ,  Alexandros MANOLAKOS ,  Hao XU ,  Renqiu WANG ,  Yi HUANG ,  Peter GAAL ,  Naga BHUSHAN

IPC: H04L5/00 ,  H04W72/04 ,  H04W52/36

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for Uplink MIMO reference signals and data transmission schemes communications systems operating according to 5G technologies. For example, one or more techniques for enabling PRG selection and conveying that selection are provided. In some cases, precoder selection techniques may be provided. Further, in some cases, techniques may be provided to distinguish OFDM and DFT-s-OFDM by using different ports.

公开(公告)号：US20180206226A1

公开(公告)日：2018-07-19

申请号：US15868529

申请日：2018-01-11

Applicant: QUALCOMM Incorporated

Inventor： Wei ZENG ,  Tingfang JI ,  Joseph Binamira SORIAGA

IPC: H04W72/04 ,  H04W76/27

CPC classification number: H04W72/0413 ,  H04L5/0053 ,  H04L5/0092 ,  H04L5/0094 ,  H04W72/0446 ,  H04W76/27 ,  H04W88/02 ,  H04W88/08

Abstract: Various aspects are provided for dynamic configuration of common uplink bursts. For example, the described apparatus and methods include receiving, at a user equipment (UE), an indicator of a length of a common uplink burst from a gNB, configuring the common uplink burst having the length as identified by the indicator, and transmitting, from the UE, the common uplink burst to the gNB.

公开(公告)号：US20180145783A1

公开(公告)日：2018-05-24

申请号：US15661256

申请日：2017-07-27

Applicant: QUALCOMM INCORPORATED

Inventor： Seyong PARK ,  Muhammad ABDELGHAFFAR ,  Wei ZENG ,  Jing JIANG ,  Joseph Binamira SORIAGA ,  Tingfang JI

IPC: H04J11/00 ,  H04L25/03

CPC classification number: H04J11/0023 ,  H04L25/03159 ,  H04L25/03828 ,  H04L25/03834 ,  H04L27/2634 ,  H04L2025/03414

Abstract: Waveforms may be shaped in a wireless communications device by processing head tones of a multi-tone carrier using a head tone waveform shaping characteristic to provide a first sub-symbol, processing tail tones of the multi-tone carrier using a tail tone waveform shaping characteristic to provide a second sub-symbol, and processing center tones of the multi-tone carrier using a center tone waveform shaping characteristic to provide a third sub-symbol. The first, second, and third waveform shaping characteristics may be different from each other, i.e., the waveform shaping may be asymmetric. The first, second, and third sub-symbols may be combined to provide an output symbol.

公开(公告)号：US20180132244A1

公开(公告)日：2018-05-10

申请号：US15806814

申请日：2017-11-08

Applicant: QUALCOMM Incorporated

Inventor： Yi HUANG ,  Wanshi CHEN ,  Wei ZENG ,  Hao XU ,  Renqiu WANG ,  Tingfang JI

IPC: H04W72/04

CPC classification number: H04W72/0453 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0094 ,  H04W72/042

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may receive a configuration indication for a common uplink portion of a wireless communication structure. The apparatus may configure the common uplink portion based at least in part on the configuration indication. The apparatus may transmit a communication in the common uplink portion configured according to the configuration indication.

公开(公告)号：US20180124710A1

公开(公告)日：2018-05-03

申请号：US15594035

申请日：2017-05-12

Applicant: QUALCOMM Incorporated

Inventor： Hung LY ,  Hao XU ,  Wanshi CHEN ,  Wei ZENG ,  Yi HUANG ,  Sony AKKARAKARAN

IPC: H04W52/14 ,  H04W52/36 ,  H04W72/04 ,  H04L5/00

CPC classification number: H04W52/146 ,  H04L1/00 ,  H04L5/0007 ,  H04W52/08 ,  H04W52/10 ,  H04W52/365 ,  H04W52/367 ,  H04W72/0413

Abstract: Certain aspects of the present disclosure generally relate to wireless communications. In some aspects, a wireless communications device may employ different power control loops, associated with different power control reference points, for uplink transmissions that use different uplink waveforms. In some aspects, a wireless communications device may generate and transmit a first type of PHR, associated with a DFT-s-OFDM-based type of uplink transmission, and/or a second type PHR associated with a CP-OFDM-based type of uplink transmission. In some aspects, a wireless communications device may selectively send a HARQ re-transmission using a particular uplink waveform based at least in part on information indicating whether the HARQ re-transmission is permitted to use an uplink waveform that is different from another uplink waveform used for a prior corresponding HARQ transmission or HARQ re-transmission. Numerous other aspects are provided.