公开(公告)号：US11601957B2

公开(公告)日：2023-03-07

申请号：US17315180

申请日：2021-05-07

Applicant: QUALCOMM Incorporated

Inventor： Wei Zeng ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  John Edward Smee ,  Naga Bhushan

IPC: H04W72/12 ,  H04W72/02 ,  H04W72/04 ,  H04W52/26 ,  H04W4/70

Abstract: Certain aspects of the present disclosure generally relate to techniques for distributed scheduling to control interference for small data transactions using grant-less transmissions. A method for wireless communications by wireless node is provided. The method generally includes receiving, from a base station, a list of supported modulation and coding schemes (MCS) and at least one parameter to control interference, determining a data rate and duration for a grant-less transmission based on the list of supported MCS and the at least one parameter, selecting access resources to use for the grant-less transmission from a common pool of resources configured to be shared by a plurality of wireless nodes for grant-less transmissions, and transmitting the grant-less transmission using the selected access resources, at the determined data rate and for the determined duration.

公开(公告)号：US11490408B2

公开(公告)日：2022-11-01

申请号：US16510599

申请日：2019-07-12

Applicant: QUALCOMM Incorporated

Inventor： Wei Zeng ,  Jing Jiang ,  Wanshi Chen ,  Tingfang Ji

IPC: H04W72/12 ,  H04L5/00 ,  H04L1/18 ,  H04L1/12 ,  H04W52/36

Abstract: Some aspects of the disclosure provide for wireless communication systems in which scheduling information is transmitted to a scheduled entity to schedule transmission of uplink feedback control information by the scheduled entity. The feedback control information may be transmitted in short uplink control bursts or long uplink bursts. Selection between short uplink control bursts and long uplink bursts may be based on power headroom at the scheduled entity, interference in the short uplink control burst or the long uplink burst, loading of the short uplink control burst or the long uplink burst or processing capability of the scheduled entity.

公开(公告)号：US11483107B2

公开(公告)日：2022-10-25

申请号：US16467872

申请日：2018-01-06

Applicant: QUALCOMM Incorporated

Inventor： Yu Zhang ,  Chao Wei ,  Hao Xu ,  Wanshi Chen ,  Wei Zeng

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

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：US11166192B2

公开(公告)日：2021-11-02

申请号：US16538672

申请日：2019-08-12

Applicant: QUALCOMM Incorporated

Inventor： Seyong Park ,  Wanshi Chen ,  Hao Xu ,  Wei Zeng ,  Renqiu Wang ,  Peter Gaal ,  Tingfang Ji ,  John Edward Smee

IPC: H04W72/08 ,  H04W28/04 ,  H04B7/08 ,  H04J11/00 ,  H04L5/00 ,  H04L25/02 ,  H04L1/00 ,  H04B7/0452

Abstract: Signaling strategies for an advanced receiver with interference cancellation (IC) and suppression is discussed. Upon enablement of an advanced interference cancellation procedure according to the disclosure, transmitters within the enabled area transmit according to transmission restriction configurations that provide transmission limits based on either frequency, time, or scheduling. The restrictions on the transmitters reduces the complexity of processing by neighboring advanced receivers for cancellation of interference from the restricted transmitters. At the advanced receiver, transmission information, such as scheduling, reference signal (RS), resource block (RB) allocation, and the like, may either be determined through blind detection or received directly through signaling. The advanced receiver may use this transmission information associated with each interfering signal to detect, decode, and subtract the interfering signals from the received transmissions.

公开(公告)号：US10798703B2

公开(公告)日：2020-10-06

申请号：US15850577

申请日：2017-12-21

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Wei Zeng ,  Naga Bhushan ,  Hao Xu ,  Wanshi Chen

IPC: H04J3/00 ,  H04W72/04 ,  H04W72/14 ,  H04L5/00 ,  H04L1/18 ,  H04L1/16 ,  H04W72/12

Abstract: Various aspects of the present disclosure provides methods and techniques for flexible positioning of a uplink short burst in NR communications. In one example, the uplink short burst may have a slot position that at any position of the uplink centric slot. For instance, a downlink centric slot may contain control signals from a base station, such as a grant, that indicate the slot position of the uplink short burst. The grant may indicate, explicitly or implicitly, the position within an uplink centric slot that should be assigned to an uplink short burst. The UE may then transmit a response including an uplink short burst within the indicated slot position of an uplink centric slot. The various aspects may thus enable the dynamic assignment of uplink short bursts within uplink centric slots.

公开(公告)号：US10778394B2

公开(公告)日：2020-09-15

申请号：US16594960

申请日：2019-10-07

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Wei Zeng ,  Wanshi Chen ,  Hao Xu ,  Tingfang Ji

IPC: H04W4/00 ,  H04L5/00 ,  H04B7/0413 ,  H04B7/06 ,  H04L1/00 ,  H04B7/0404 ,  H04W88/02 ,  H04W88/08

Abstract: Both precoded sounding reference signals (SRS) and unprecoded SRS are transmitted from a UE to an eNB. The UE may transmit both in the same subframe using either TDM or FDM. Or the UE may transmit each in different subframes from each other. The eNB uses some combination of the precoded SRS and the unprecoded SRS in scheduling resources for the UE. The eNB may also provide instruction to the UE for PUSCH precoding for data transmission. The eNB may signal the UE to use the same precoding as for the precoded SRS. The eNB may instead signal the UE to use different precoding by including the precoding information or delta information between the precoding used for the precoded SRS and the selected precoding for the PUSCH data.

公开(公告)号：US10687347B2

公开(公告)日：2020-06-16

申请号：US16163261

申请日：2018-10-17

Applicant: QUALCOMM Incorporated

Inventor： Wei Zeng ,  Tingfang Ji ,  Joseph Binamira Soriaga ,  John Smee ,  Naga Bhushan

IPC: H04W72/12 ,  H04L5/00 ,  H04L5/14 ,  H04L29/06 ,  H04L1/00 ,  H04L29/08 ,  H04W52/36 ,  H04W88/02 ,  H04W88/08

Abstract: Wireless communications systems and methods related to decoupling uplink latency using common uplink (UL) burst in Time Division Duplex (TDD) sub-frame structure are disclosed. User equipment (UE) can transmit to a base station a common UL burst in each sub-frame communicated between UE and the base station, wherein he common UL burst comprises at least one of: a physical layer (PHY) acknowledgement (ACK), a scheduling request (SR), a buffer status report (BSR), or a sounding reference signal (SRS). UE can be further configured to transmit scheduled UL payload data in at least one common UL burst of at least one sub-frame communicated between the UE and the base station.

公开(公告)号：US10575258B2

公开(公告)日：2020-02-25

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

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.

公开(公告)号：US10567048B2

公开(公告)日：2020-02-18

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

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：US20200044778A1

公开(公告)日：2020-02-06

申请号：US16597761

申请日：2019-10-09

Applicant: QUALCOMM Incorporated

Inventor： Seyong Park ,  Wei Zeng ,  Joseph Binamira Soriaga ,  Jing Jiang ,  Tingfang Ji

IPC: H04L1/00 ,  H04J11/00 ,  H04L5/00 ,  H04L27/26

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be configured to receive a plurality of combined signals. Each combined signal may be on a tone of a plurality of tones. The apparatus may be configured to determine a first pilot signal on a first tone of the plurality of tones. The apparatus may be configured to generate an interference-reduced signal for the first tone by canceling the determined first pilot signal from a first combined signal on the first tone.