公开(公告)号：US11005695B2

公开(公告)日：2021-05-11

申请号：US16126332

申请日：2018-09-10

Applicant: QUALCOMM Incorporated

Inventor： Seyong Park ,  Peter Gaal ,  Yi Huang ,  Renqiu Wang ,  Xiao Feng Wang ,  Sony Akkarakaran ,  Timo Ville Vintola ,  Tao Luo

IPC: H04L27/34 ,  H04L27/36 ,  H04L5/00 ,  H04L27/26 ,  H04J13/00 ,  H04L15/03 ,  H04L25/03

Abstract: Certain aspects of the present disclosure relate to methods and apparatus relating to reference signal design for Pi/2-binary phase shift keying (Pi/2-BPSK) modulation with frequency domain spectral shaping (FDSS). In certain aspects, a method includes generating a set of Gold sequences each having a length and adjusting the length of each of the Gold sequences in the set of Gold sequences. The method also includes applying a phase rotation to each of the Gold sequences in the set of Gold sequences and modulating each of the Gold sequences in the set of Gold sequences by a DFT-s-OFDM with frequency domain spectral shaping (FDSS). The method further includes selecting one or more sequences from the set of modulated Gold sequences based on a parameter and transmitting the one or more sequences to a user equipment (UE) or a base station (BS).

公开(公告)号：US11005620B2

公开(公告)日：2021-05-11

申请号：US16008908

申请日：2018-06-14

Applicant: QUALCOMM Incorporated

Inventor： Seyong Park ,  Renqiu Wang ,  Yi Huang ,  Hao Xu ,  Peter Gaal

IPC: H04W4/00 ,  H04L5/00 ,  H04L27/26

Abstract: Various aspects described herein relate to techniques for uplink reference signal sequence design in wireless communications systems. A method, a computer-readable medium, and an apparatus are provided. In an aspect, the method includes identifying a set of sequences to include at least a base sequence, a reverse order sequence of the base sequence, a complex conjugate sequence of the base sequence, or a reverse order complex conjugate sequence of the base sequence, and transmitting an uplink reference signal based on at least one of the sequences in the set. The techniques described herein may apply to different communications technologies, including 5th Generation (5G) New Radio (NR) communications technology.

公开(公告)号：US10917907B2

公开(公告)日：2021-02-09

申请号：US16181942

申请日：2018-11-06

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Peter Gaal ,  Tao Luo ,  Yi Huang ,  Renqiu Wang ,  Seyong Park

IPC: H04W4/00 ,  H04W72/12 ,  H04W74/08 ,  H04L5/00 ,  H04L1/18 ,  H04W72/14

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine information that identifies a resource for transmitting an acknowledgment of a message associated with a random access procedure. The information that identifies the resource may be determined based at least in part on at least one of: a frequency band associated with the random access procedure, a resource associated with at least one message in a sequence of messages associated with the random access procedure, a payload of at least one message in the sequence of messages associated with the random access procedure, or a grant associated with another message in the sequence of messages associated with the random access procedure. In some aspects, the user equipment may transmit the acknowledgment based at least in part on the information that identifies the resource. Numerous other aspects are provided.

公开(公告)号：US10887850B2

公开(公告)日：2021-01-05

申请号：US16572450

申请日：2019-09-16

Applicant: QUALCOMM INCORPORATED

Inventor： Seyong Park ,  Amir Aminzadeh Gohari ,  Renqiu Wang ,  Yi Huang ,  Hao Xu

IPC: H04W52/36 ,  H04W52/14 ,  H04W72/12 ,  H04W52/34 ,  H04W52/26 ,  H04W24/10 ,  H04W72/04 ,  H04L5/00

Abstract: Wireless communications systems and methods related to improve control reporting latency are provided. A wireless communication device receives, from a first link in a first time interval, first control information associated with a second link and the first time interval. The wireless communication device transmits, via the second link in the first time interval, a control report associated with the second link based on a report configuration that is independent from the first control information. The report configuration is associated with a waveform type. The wireless communication device receives, from the first link in a second time interval following the first time interval, second control information that is dependent on the control report. The report configuration includes a power headroom (PHR) report configuration. The PHR report configuration includes a reference PHR report configuration. The PHR report configuration includes a delayed PHR report configuration.

公开(公告)号：US20200275492A1

公开(公告)日：2020-08-27

申请号：US16742597

申请日：2020-01-14

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Peter Gaal ,  Joseph Binamira Soriaga ,  Wanshi Chen ,  Seyong Park

IPC: H04W74/08 ,  H04L5/00 ,  H04W72/04 ,  H04L27/26 ,  H04W56/00

Abstract: Methods, systems, and devices for wireless communications are described in which a UE may determine a time duration of a transmission gap between a random access preamble and random access payload. The time duration of the transmission gap may be based on a configuration of the random access channel resources, a timing adjustment (e.g., an estimated propagation delay) for uplink transmissions from the UE, a beam management procedure at the UE and/or the base station, or combinations thereof. The UE may select an initial transmission gap duration based on the configuration of the random access channel resources, and may adjust the initial transmission gap duration based on the timing adjustment. Multiple UEs may be configured such that random access channel transmissions align with a random access occasion (RO) window. A base station may decode messages from multiple UEs using joint or successive decoding to recover the corresponding random access messages.

公开(公告)号：US10728073B2

公开(公告)日：2020-07-28

申请号：US16146639

申请日：2018-09-28

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Seyong Park ,  Yi Huang ,  Sony Akkarakaran

IPC: H04W72/12 ,  H04L27/26 ,  H04W72/04 ,  H04L1/18 ,  H04L5/00 ,  H04W76/27 ,  H04L25/02 ,  H04W4/70 ,  H04B7/0413

Abstract: Certain aspects of the present disclosure relate to methods and apparatus generating sequences and mapping cyclic shifts of the sequences to hypotheses for short burst transmissions, for example, in new radio (NR) technologies. An exemplary method includes selecting a computer generated sequence (CGS), from a plurality of CGSs; determining, based on different values of uplink control information (UCI) and a first shift index assigned to the transmitter, a shift to apply to the CGS; and transmitting the selected CGS, with the determined shift applied, in a short physical uplink control channel (PUCCH) to indicate the UCI.

公开(公告)号：US10686490B2

公开(公告)日：2020-06-16

申请号：US16143359

申请日：2018-09-26

Applicant: QUALCOMM Incorporated

Inventor： Seyong Park ,  Pinar Sen ,  Naga Bhushan ,  Tingfang Ji

IPC: H04B1/7103 ,  H04L27/00 ,  H04L1/00 ,  H04L5/00 ,  H04L27/34 ,  H04L25/06 ,  H04L27/26 ,  H04L5/14

Abstract: Methods, systems, and devices for wireless communications are described. A UE may use different modulation schemes, or different modulators, for a single data stream. The set of modulators may be based on a linear combination of a function of encoded bits to be transmitted. In some cases, the UE may use a different permutation or interleaving of the function of bits with the same linear function to generate a different set of modulators. The UE may use a combination of any one or more of the described techniques for generating a set of modulators. Different modulators may be cyclically repeated over time. The UE may apply a device-specific scrambling sequence and transmit the modulated symbols on an uplink channel. The base station may use matched filters and an element-wise estimator (ESE) to compute log-likelihood ratios (LLRs) for each bit of each UE in a received signal.

公开(公告)号：US10659207B2

公开(公告)日：2020-05-19

申请号：US15979008

申请日：2018-05-14

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Yi Huang ,  Wanshi Chen ,  Peter Gaal ,  Seyong Park ,  Hao Xu

IPC: H04L5/00 ,  H04W52/34 ,  H04W52/28 ,  H04W52/14 ,  H04W52/24 ,  H04W52/32 ,  H04W52/36 ,  H04W72/04 ,  H04W52/06 ,  H04W52/42 ,  H04W52/26

Abstract: Aspects of the present disclosure implement techniques for power control management between the base station and the UE to support multiple waveforms and services. In one example, the power control management system may implement independent power control loops for each waveform and service (e.g., eMBB, uRLLC, etc.) supported by the wireless communication system. For example, the base station may transmit a first power control command to a UE for first waveform (e.g., CP-OFDM) or service (e.g., eMBB) and a second power control command to the UE for the second waveform (DFT-OFDM) or service (e.g., uRLLC). Features of the present disclosure may also implement techniques that allow the base station to transmit a single power control command for configuring the power control for a plurality of waveforms or services. Upon receiving the power control commands, the UE may configure the transmission power for uplink traffic based on the power control commands.

公开(公告)号：US20200053666A1

公开(公告)日：2020-02-13

申请号：US16572450

申请日：2019-09-16

Applicant: QUALCOMM INCORPORATED

Inventor： Seyong Park ,  Amir Aminzadeh Gohari ,  Renqiu Wang ,  Yi Huang ,  Hao Xu

IPC: H04W52/36 ,  H04W52/34 ,  H04W72/12 ,  H04W52/14

Abstract: Wireless communications systems and methods related to improve control reporting latency are provided. A wireless communication device receives, from a first link in a first time interval, first control information associated with a second link and the first time interval. The wireless communication device transmits, via the second link in the first time interval, a control report associated with the second link based on a report configuration that is independent from the first control information. The report configuration is associated with a waveform type. The wireless communication device receives, from the first link in a second time interval following the first time interval, second control information that is dependent on the control report. The report configuration includes a power headroom (PHR) report configuration. The PHR report configuration includes a reference PHR report configuration. The PHR report configuration includes a delayed PHR report configuration.

公开(公告)号：US20190260418A1

公开(公告)日：2019-08-22

申请号：US16280879

申请日：2019-02-20

Applicant: QUALCOMM Incorporated

Inventor： Seyong Park ,  Peter Gaal ,  Wanshi Chen ,  Jing Lei ,  Jay Kumar Sundararajan ,  Renqiu Wang ,  Joseph Binamira Soriaga ,  Naga Bhushan ,  Tingfang Ji ,  John Edward Smee

IPC: H04B1/7093 ,  H04J13/00 ,  G06F17/14 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network controller may determine a first set of spreading sequences and a second set of spreading sequences for non-orthogonal multiple access (NOMA) communication, wherein the first set of spreading sequences is different than the second set of spreading sequences; and configure a first cell to use the first set of spreading sequences and a second cell to use the second set of spreading sequences; or configure the first set of spreading sequences to be used for first user equipment associated with a cell center of the first cell and the second set of spreading sequences to be used for second user equipment associated with a cell edge of the first cell or the second cell. Numerous other aspects are provided.