公开(公告)号：US20200107227A1

公开(公告)日：2020-04-02

申请号：US16573093

申请日：2019-09-17

Applicant: QUALCOMM Incorporated

Inventor： Huilin Xu ,  Wanshi Chen ,  Yi Huang

IPC: H04W28/16 ,  H04L5/14 ,  H04B17/345

Abstract: Methods, systems, and devices for wireless communications are described. A core network may organize a set of base stations into a set of cell groups, each cell group including one or more base stations, the cell groups being organized based on potential of each base station to cause interference, by downlink transmission, to reception of uplink transmissions at remote base stations. The core network may identify cell group identifications for each cell group and configure the set of base stations with respective cell group identifications so that signals transmitted from individual base stations of each cell group include the respective cell group identification, and so that remote base stations whose uplink transmissions are interfered with can identify the cell group of base stations causing the interference. The number of base stations in a cell group may be iteratively reduced based on identifying the interference.

公开(公告)号：US20200053758A1

公开(公告)日：2020-02-13

申请号：US16537422

申请日：2019-08-09

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush Hosseini ,  Peter Gaal ,  Huilin Xu ,  Wanshi Chen ,  Tao Luo

IPC: H04W72/12 ,  H04W72/04 ,  H04L5/10 ,  H04L5/00 ,  H04W72/14

Abstract: Rate-matching and channel estimation are disclosed for new radio (NR) user equipments (UEs). An NR UE obtains coexistence information of neighboring legacy operations including common reference signal (CRS) ports, CRS frequency pattern, and a legacy subframe type corresponding to the NR transmission segments. The NR UE determines legacy CRS occasion(s) coinciding with shared downlink direction operations for the NR and legacy operations, and rate-matches reception of NR downlink transmissions around the CRS occasion(s). In other aspects, an NR UE detects overlap of a downlink signal with downlink control channel candidate of a configured control resource set (CORESET). The UE ends monitoring of the candidate within a search space of the CORESET in response to the detected overlap, detects a collision between a scheduled demodulation reference signal (DMRS) and the downlink signal occasion, and discards all or part of the CORESET.

公开(公告)号：US20200029305A1

公开(公告)日：2020-01-23

申请号：US16510705

申请日：2019-07-12

Applicant: QUALCOMM Incorporated

Inventor： Huilin Xu ,  Wanshi Chen ,  Heechoon Lee ,  Alexandros Manolakos ,  Mostafa Khoshnevisan

IPC: H04W72/02 ,  H04W72/04 ,  H04W76/11 ,  H04L1/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a first plurality of control resources associated with a first transceiver node and a second plurality of control resources associated with a second transceiver node. The UE may select, based at least in part on a decoding limit for the UE, a decoding configuration to use for decoding one or more control resources from the first plurality of control resources and one or more resources from the second plurality of control resources. The UE may decode control signals received over control resources from the first plurality of control resources and the second plurality of control resources according to the decoding configuration.

公开(公告)号：US10244426B2

公开(公告)日：2019-03-26

申请号：US14799515

申请日：2015-07-14

Applicant: QUALCOMM Incorporated

Inventor： Huilin Xu ,  Alexei Gorokhov ,  Mariam Motamed ,  Raghu Challa ,  Joshua MacDonald ,  Kai Xie ,  Vivek Padi ,  Alex Mateen ,  Juchuan Ma

IPC: H04L27/00 ,  H04L27/26 ,  H04W28/02 ,  H04W56/00 ,  H04W76/28

Abstract: Aspects of frequency error detection with Physical Broadcast CHannel (PBCH) frequency hypothesis are described. For example, a method and apparatus are disclosed for frequency tracking in a user equipment (UE) may include detecting a change in frequency that exceeds a pull-in range of a frequency tracking loop (FTL) of the UE. The method and apparatus may also include identifying a tracking recovery frequency in response to the change in frequency being detected, wherein the tracking recover frequency is identified from a set of frequency hypotheses and based on decoding of the PBCH received by the UE. The method and apparatus may further include updating the FTL with the tracking recovery frequency.

公开(公告)号：US09414372B2

公开(公告)日：2016-08-09

申请号：US13797907

申请日：2013-03-12

Applicant: QUALCOMM Incorporated

Inventor： Jun Won Choi ,  Huilin Xu ,  Raghu Narayan Challa

IPC: H04W72/04 ,  H04L27/00 ,  H04L27/26

CPC classification number: H04W72/042 ,  H04L27/0014 ,  H04L27/2657 ,  H04L27/2685 ,  H04L2027/0024 ,  H04L2027/0053 ,  H04L2027/0069

Abstract: A method for speeding up a filter tracking speed includes scaling filter coefficients based at least in part on an uplink/downlink configuration in a time division duplex (TDD) or a multimedia broadcast single frequency network (MBSFN) system. The method also includes applying scaled filter coefficients during at least one downlink subframe to control a filter tracking speed.

Abstract translation: 用于加速滤波器跟踪速度的方法包括至少部分地基于时分双工（TDD）或多媒体广播单频网络（MBSFN）系统中的上行链路/下行链路配置来缩放滤波器系数。 该方法还包括在至少一个下行链路子帧期间应用缩放的滤波器系数以控制滤波器跟踪速度。

公开(公告)号：US12289719B2

公开(公告)日：2025-04-29

申请号：US17450447

申请日：2021-10-08

Applicant: QUALCOMM Incorporated

Inventor： Lianghai Ji ,  Qiang Wu ,  Huilin Xu ,  Jun Ma ,  Mehmet Izzet Gurelli ,  Weimin Duan ,  Karthik Anantha Swamy

IPC: H04W72/121 ,  H04L5/00 ,  H04W24/10 ,  H04W72/1263 ,  H04W72/30

Abstract: A UE determines a group identifier based at least in part on a timing advance (TA) associated with the UE, the group identifier associated with at least the UE and a second UE and receives a sidelink resource allocation associated with the group identifier. The UE transmits sidelink communication using the sidelink resource allocation. A network node associates a UE with a group identifier based on a timing advance (TA) associated with the UE and transmits a sidelink resource allocation associated with the group identifier, the group identifier associated with at least the UE and a second UE.

公开(公告)号：US12273897B2

公开(公告)日：2025-04-08

申请号：US18390111

申请日：2023-12-20

Applicant: QUALCOMM Incorporated

Inventor： Huilin Xu ,  Yan Zhou ,  Yuchul Kim ,  Yongjun Kwak

IPC: H04W72/23 ,  H04W68/02

Abstract: Methods, computer programs products, and apparatuses for RS availability indication are provided. An example method at a UE may include receiving, from a base station, a PEI comprising a first availability indication for a first set of RS resources in one or more RS occasions. The example method may further include receiving, from the base station, a paging PDCCH comprising a second availability indication for a second set of RS resources in the one or more RS occasions. The example method may further include receiving, from the base station, at least one of the first set of RS resources or the second set of RS resources.

公开(公告)号：US12273858B2

公开(公告)日：2025-04-08

申请号：US17776555

申请日：2019-12-04

Applicant: Qualcomm Incorporated

Inventor： Qiaoyu Li ,  Chao Wei ,  Hao Xu ,  Huilin Xu ,  Jing Lei ,  Peter Pui Lok Ang ,  Wanshi Chen ,  Le Liu ,  Yiqing Cao ,  Peter Gaal

IPC: H04W68/02 ,  H04W76/10 ,  H04W76/28 ,  H04W88/04

Abstract: Idle discontinuous reception (I-DRX) cycles at a user equipment (UE) may be extended via leveraging of paging assistance from a second UE. For example, a low complexity UE may have a connection to a network (e.g., via a link to a base station) as well as a connection to another UE (e.g., via a device-to-device link to a regular UE). In cases where such a low complexity UE receives paging messages from the network, a UE associated with a device-to-device link of the low complexity UE may monitor paging messages on behalf of the low complexity UE. As such, the low complexity UE may extend its I-DRX cycle, as the assisting UE monitors paging information for the low complexity UE. The assisting UE may forward paging information for the low complexity UE according to paging occasions of the extended I-DRX cycle of the low complexity UE.

公开(公告)号：US12250080B2

公开(公告)日：2025-03-11

申请号：US17757401

申请日：2020-12-23

Applicant: QUALCOMM Incorporated

Inventor： Ruifeng Ma ,  Yuwei Ren ,  Huilin Xu

IPC: H04L1/1812 ,  H04L1/08 ,  H04W88/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine that one or more communications with a base station are to be transmitted or received via a relay UE. The one or more communications may include at least one of hybrid automatic repeat request feedback, a retransmission, or a control communication. The UE may transmit or receive the one or more communications via the relay UE. Numerous other aspects are provided.

公开(公告)号：US12232145B2

公开(公告)日：2025-02-18

申请号：US17247204

申请日：2020-12-03

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Huilin Xu ,  Peter Pui Lok Ang ,  Wanshi Chen ,  Krishna Kiran Mukkavilli ,  Tingfang Ji

IPC: H04W72/51 ,  H04L5/00 ,  H04W8/24 ,  H04W24/10 ,  H04W72/23

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit UE assistance information including UE capability report and measurement report to a base station, and the base station may determine a physical downlink control channel (PDCCH) monitoring configuration for reduced-capability UEs based at least in part on the UE assistance information. The UE may determine whether a group common PDCCH (GC-PDCCH) communication indicates that the zone identifier is activated for an associated monitoring period. The UE may selectively perform one or more PDCCH blind decodes in one or more search space sets associated with the zone identifier during the monitoring period based at least in part on determining whether the GC-PDCCH communication indicates that the zone identifier is activated for the monitoring period. Numerous other aspects are provided.