公开(公告)号：US20180205480A1

公开(公告)日：2018-07-19

申请号：US15871901

申请日：2018-01-15

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Tao Luo ,  Renqiu Wang ,  Hao Xu ,  Wei Zeng ,  Peter Gaal ,  Yi Huang ,  Seyong Park

IPC: H04J11/00 ,  H04L5/00 ,  H04W72/04 ,  H04W72/08

CPC classification number: H04J11/005 ,  H04L5/0035 ,  H04L5/005 ,  H04L5/0053 ,  H04L5/0073 ,  H04L5/0091 ,  H04L5/1469 ,  H04W24/02 ,  H04W24/10 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/082

Abstract: Various reference signal (RS) designs and arrangements for interference coordination and management in wireless communication are disclosed. Reference signals may be included in uplink (UL) and downlink (DL) transmissions for facilitating data demodulation and other purposes, and the locations of the reference signals within any given slot may depend on various factors. In some aspects of this disclosure, reference signals included in UL and/or DL transmissions of neighboring cells may be aligned in time and/or frequency to improve interference control and coordination between devices operating in different cells.

公开(公告)号：US20180139648A1

公开(公告)日：2018-05-17

申请号：US15707607

申请日：2017-09-18

Applicant: QUALCOMM Incorporated

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

IPC: H04W28/04 ,  H04W72/08 ,  H04L1/00

CPC classification number: H04W28/04 ,  H04B7/0452 ,  H04B7/0848 ,  H04J11/0023 ,  H04J2011/0096 ,  H04L1/0038 ,  H04L1/0045 ,  H04L5/0007 ,  H04L5/0035 ,  H04L5/0044 ,  H04L5/0092 ,  H04L25/0202 ,  H04L25/0204 ,  H04L25/0224 ,  H04W72/082

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：US12225592B2

公开(公告)日：2025-02-11

申请号：US17594704

申请日：2020-05-07

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Seyong Park ,  Yiqing Cao ,  Peter Gaal ,  Wanshi Chen

IPC: H04W56/00 ,  H04L1/00 ,  H04L5/00 ,  H04W72/0446 ,  H04W74/00 ,  H04W74/0833

Abstract: Aspects are provided to support payloads for msgA transmission in a two-step random access (RACH) procedure by providing a one-to-many mapping arrangement between preambles and physical uplink shared channel (PUSCH) resource units (PRUs). A preamble is determined by the UE which is mapped to one or more groups of PRUs to support piggybacking of uplink control information (UCI), frequency hopping on PUSCH, and multiple-slot repetition for msgA transmissions. By piggybacking UCI to a payload in msgA, flexibility may be provided in the selection of MCS and waveform as well as resource allocation for demodulation reference signals (DMRS) and PUSCH in PRUs. Moreover, by allowing a payload to hop to different frequencies on PUSCH during the transmission of msgA, a gain in frequency diversity and interference averaging may be provided, and by enabling a payload to repeat across multiple slots in msgA transmission, coverage enhancement and/or reliability may be increased.

公开(公告)号：US12200777B2

公开(公告)日：2025-01-14

申请号：US17616764

申请日：2019-06-07

Applicant: Qualcomm Incorporated

Inventor： Jing Lei ,  Wanshi Chen ,  Joseph Binamira Soriaga ,  Linhai He ,  Ruiming Zheng ,  Seyong Park ,  Yiqing Cao ,  Naga Bhushan

IPC: H04W74/08 ,  H04L1/08 ,  H04W56/00 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/0453 ,  H04W74/0833

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine a configuration of a retransmission of a first message of a random access procedure based on a set of transmission configuration options transmitted by a base station. For example, the UE may transmit the first message but may reconfigure the first message for the retransmission based on the transmission configuration options. Additionally, the UE may configure a set of transmission configuration states based on the transmission configuration options for transmitting/retransmitting the first message. In some cases, the UE may determine to switch transmission configuration states based on a trigger signaled by the base station and/or a determination by the UE. Additionally, the UE may transmit an indication of a log of state transitions performed prior to a retransmission of the first message to facilitate combining of the retransmissions at the base station.

公开(公告)号：US12170917B2

公开(公告)日：2024-12-17

申请号：US18512740

申请日：2023-11-17

Applicant: QUALCOMM Incorporated

Inventor： Yuchul Kim ,  Huilin Xu ,  Hwan Joon Kwon ,  Peter Pui Lok Ang ,  Jay Kumar Sundararajan ,  Krishna Kiran Mukkavilli ,  Yeliz Tokgoz ,  Jing Lei ,  Tingfang Ji ,  Ravi Agarwal ,  Seyong Park

IPC: H04W72/23 ,  H04L1/08 ,  H04L1/1607 ,  H04W24/08 ,  H04W72/51

Abstract: Methods, systems, and devices for wireless communications are described. A communication device, otherwise known as a user equipment (UE) may transmit capability information including an indication of a discontinuous monitoring delay period. The UE may receive a message including an indication to adjust monitoring of a physical downlink control channel (PDCCH), and monitor for the PDCCH during the discontinuous monitoring delay period. The UE may adjust monitoring for the PDCCH following the discontinuous monitoring delay period during a temporal period based on the received indication to adjust monitoring of the PDCCH. In some examples, at least one of physical downlink shared channel (PDSCH) reception, downlink reference signal monitoring, uplink reference signal transmissions, and channel reporting is enabled during the temporal period while monitoring of the PDCCH is adjusted.

公开(公告)号：US12160904B2

公开(公告)日：2024-12-03

申请号：US17616764

申请日：2019-06-07

Applicant: Qualcomm Incorporated

Inventor： Jing Lei ,  Wanshi Chen ,  Joseph Binamira Soriaga ,  Linhai He ,  Ruiming Zheng ,  Seyong Park ,  Yiqing Cao ,  Naga Bhushan

IPC: H04W74/08 ,  H04L1/08 ,  H04W56/00 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/0453 ,  H04W74/0833

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine a configuration of a retransmission of a first message of a random access procedure based on a set of transmission configuration options transmitted by a base station. For example, the UE may transmit the first message but may reconfigure the first message for the retransmission based on the transmission configuration options. Additionally, the UE may configure a set of transmission configuration states based on the transmission configuration options for transmitting/retransmitting the first message. In some cases, the UE may determine to switch transmission configuration states based on a trigger signaled by the base station and/or a determination by the UE. Additionally, the UE may transmit an indication of a log of state transitions performed prior to a retransmission of the first message to facilitate combining of the retransmissions at the base station.

公开(公告)号：US12156277B2

公开(公告)日：2024-11-26

申请号：US17313643

申请日：2021-05-06

Applicant: QUALCOMM Incorporated

Inventor： Yuchul Kim ,  Hwan Joon Kwon ,  Peter Pui Lok Ang ,  Huilin Xu ,  Jay Kumar Sundararajan ,  Krishna Kiran Mukkavilli ,  Yeliz Tokgoz ,  Jing Lei ,  Tingfang Ji ,  Ravi Agarwal ,  Seyong Park

IPC: H04W76/28 ,  H04W72/10 ,  H04W72/23

Abstract: Methods, systems, and devices for wireless communications are described. A communication device, otherwise known as a user equipment (UE) may receive a downlink control information (DCI) message including an indication to enable discontinuous monitoring of a physical downlink control channel (PDCCH). The UE may enable the discontinuous monitoring of the PDCCH based on the received DCI message, and disable monitoring of the PDCCH during a temporal period in which at least one of physical downlink shared channel (PDSCH) reception, downlink reference signal monitoring, uplink reference signal transmissions, and channel reporting is enabled. The UE may thereby experience power saving by disabling monitoring of the PDCCH while still performing other wireless operations during the temporal period. The UE may, as a result, also include features for improvements to wireless communications and, in some examples, may promote high reliability and low latency wireless communications, among other benefits.

公开(公告)号：US12119973B2

公开(公告)日：2024-10-15

申请号：US18461444

申请日：2023-09-05

Applicant: QUALCOMM Incorporated

Inventor： Seyong Park ,  Alexandros Manolakos ,  Weimin Duan ,  Jay Kumar Sundararajan ,  Wanshi Chen ,  Krishna Kiran Mukkavilli ,  Tingfang Ji ,  Naga Bhushan

IPC: H04L27/26 ,  H04L5/00

CPC classification number: H04L27/2607 ,  H04L5/0051 ,  H04L27/2613

Abstract: Sounding reference signals (SRS) transmitted by a UE, e.g., for positioning or channel estimation, may be configured for one or both of frequency tone level cyclic shift and symbol level code, which, for example, enables multiplexing a greater number of UEs. The frequency tone level cyclic shift is produced by jointly processing a number of symbols with an extended cyclic shift structure. The SRS may be configured using a symbol group level that indicates the number of symbols associated with a cyclic shift structure, and an outer code that indicates a multiplier applied to the SRS at the symbol level, which increases the multiplexing opportunities. The symbol level code may further indicate an extended cyclic shift indicating a linear increase in phase rotation across tones in symbols associated with the symbol group level.

公开(公告)号：US12068814B2

公开(公告)日：2024-08-20

申请号：US18156690

申请日：2023-01-19

Applicant: QUALCOMM Incorporated

Inventor： Seyong Park ,  Pinar Sen ,  Renqiu Wang ,  Peter Gaal ,  Naga Bhushan ,  Krishna Kiran Mukkavilli ,  Muhammad Sayed Khairy Abdelghaffar ,  Hwan Joon Kwon ,  Tingfang Ji

IPC: H04B7/0456 ,  H04B7/06

CPC classification number: H04B7/0456 ,  H04B7/063

Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device may be configured to transmit one or more reference signals to a second wireless device using a first antenna array at the first wireless device and in accordance with a first precoder matrix. The first wireless device may receive, from the second wireless device based on the one or more reference signals, a feedback message indicating an estimated rotational misalignment, an estimated spatial misalignment, or both, between the first antenna array at the first wireless device and a second antenna array at the second wireless device. The first wireless device may then transmit a message to the second wireless device in accordance with a second precoder matrix that is modified relative to the first precoder matrix based at least in part on the estimated rotational misalignment, the estimated spatial misalignment, or both.

公开(公告)号：US12052073B2

公开(公告)日：2024-07-30

申请号：US17846901

申请日：2022-06-22

Applicant: QUALCOMM Incorporated

Inventor： Weimin Duan ,  Hyojin Lee ,  Seyong Park

IPC: H04B7/0456 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/06

CPC classification number: H04B7/0478 ,  H04B7/0417 ,  H04B7/0639 ,  H04B7/0452

Abstract: Disclosed are systems, apparatuses, processes, and computer-readable media for wireless communications. For example, an example of a process may include receiving, at a network device (e.g., a user equipment (UE)) from a network entity via a number of sensing streams based on a maximum of Nt−J sensing streams, a waveform including communications resources and sensing resources. The waveform has a rank Nt and J is a number of layers scheduled for multiple-input multiple-output (MIMO) communications that is less than Nt. The process may further include processing at least the communications resources of the waveform.