公开(公告)号：US10917211B2

公开(公告)日：2021-02-09

申请号：US16428033

申请日：2019-05-31

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Hung Dinh Ly ,  Heechoon Lee ,  Peter Gaal ,  Muhammad Nazmul Islam ,  Wanshi Chen ,  Bilal Sadiq

IPC: H04L12/28 ,  H04L5/00 ,  H04J11/00 ,  H04L27/26 ,  H04J1/16

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a first synchronization signal (SS) block that does not include remaining minimum system information (RMSI). The first SS block may indicate an offset for obtaining a second SS block that includes RMSI. The UE may determine a location of the second SS block based at least in part on the offset. Numerous other aspects are provided.

公开(公告)号：US10862639B2

公开(公告)日：2020-12-08

申请号：US15802181

申请日：2017-11-02

Applicant: QUALCOMM Incorporated

Inventor： Hung Ly ,  Wanshi Chen ,  Heechoon Lee ,  Hao Xu

IPC: H04L5/00 ,  H04W56/00 ,  H04W72/04

Abstract: A method and apparatus for decoupling of a synchronization (“sync”) channel raster and a channel raster in a wireless communication system is disclosed. For example, the method and apparatus include determining, at a network entity, a synchronization channel raster corresponding to a set of frequencies, and transmitting, from the network entity, one or more synchronization signals and a physical broadcast channel (PBCH) in any frequency of the set of frequencies of the synchronization channel raster to at least one UE. For example, the method and apparatus further include determining, at a network entity, a synchronization channel raster corresponding to a set of frequencies, and transmitting, from the network entity, one or more synchronization signals and a PBCH in a frequency of the set of frequencies of the synchronization channel raster closest to a center frequency of a bandwidth to at least one UE.

公开(公告)号：US10819655B2

公开(公告)日：2020-10-27

申请号：US16196862

申请日：2018-11-20

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Wanshi Chen ,  Peter Gaal ,  Heechoon Lee ,  Tao Luo ,  Juan Montojo

IPC: H04L12/913 ,  H04L5/00 ,  H04L5/14 ,  H04L12/911 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine a bandwidth part switch from a first bandwidth part to a second bandwidth part. The user equipment may transition from the first bandwidth part to the second bandwidth part after determining the bandwidth part switch and based at least in part on a critical section defined for the transitioning from the first bandwidth part to the second bandwidth part. Numerous other aspects are provided.

公开(公告)号：US10779328B2

公开(公告)日：2020-09-15

申请号：US16162227

申请日：2018-10-16

Applicant: QUALCOMM Incorporated

Inventor： Wooseok Nam ,  Tao Luo ,  Jing Sun ,  Jing Jiang ,  Heechoon Lee ,  Peter Gaal

IPC: H04W74/08 ,  H04L5/00 ,  H04B7/06 ,  H04L1/00 ,  H04W72/04 ,  H04W72/10 ,  H04L1/18

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a reference signal preemption scheme associated with one or more reference signal resources being preempted for priority transmissions during a time period. The UE may determine that resources of one or more reference signals have been preempted during the time period and in accordance with the reference signal preemption scheme. The UE may implement a reference signal preemption response scheme that is selected based at least in part on the resources of the one or more reference signals being preempted.

公开(公告)号：US20200287646A1

公开(公告)日：2020-09-10

申请号：US16882111

申请日：2020-05-22

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Huilin Xu ,  Heechoon Lee

IPC: H04J11/00 ,  H04W24/10 ,  H04W8/26 ,  H04W72/04 ,  H04L25/02 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communication are described. In some cases, due to blind decoding and channel estimation (CE) limits, one or more user equipment (UE) specific search sets may be pruned for blind decoding and/or CE purposes. For instance, after hashing a set of common decoding candidates to control channel elements (CCEs) within the control region, the UE specific search sets may be pruned so as to conform to the blind decode limitation, since a common search space has already occupied a portion of the total blind decode limit. Following pruning, the UE may hash the sets of UE-specific decoding candidates associated with the one or more UE specific search sets to CCEs within the control region. The UE may further prune UE specific search sets, based on CE limits, while reusing CE for overlapping hashed locations.

公开(公告)号：US10750444B2

公开(公告)日：2020-08-18

申请号：US16104066

申请日：2018-08-16

Applicant: QUALCOMM Incorporated

Inventor： Heechoon Lee ,  Peter Pui Lok Ang ,  Tao Luo ,  Peter Gaal ,  Wanshi Chen ,  Juan Montojo ,  Tingfang Ji

IPC: H04W52/02 ,  H04L5/00 ,  H04W76/28 ,  H04W72/04 ,  H04W72/14

Abstract: Aspects of the disclosure relate to wireless communications utilizing discontinuous reception (DRX). Disclosed methods and apparatus include providing a grant indicator in a transmission from a base station to a user equipment (UE), where indicator notifies the UE of a grant of data during a subsequent discontinuous reception (DRX) cycle in the at least one UE. Additionally, a tracking reference signal (TRS), which may be aperiodic (A-TRS), is transmitted prior to an on-duration time of the DRX cycle, where the TRS is usable by the UE for updating a tracking loop and also can be referenced by the indicator. In this manner, the combination of the grant indicator and the TRS affords a UE sufficient time for updating a UE tracking loop before the DRX cycle. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US20200252183A1

公开(公告)日：2020-08-06

申请号：US16853284

申请日：2020-04-20

Applicant: QUALCOMM Incorporated

Inventor： Hung LY ,  Tao Luo ,  Heechoon Lee

IPC: H04L5/00 ,  H04L27/26

Abstract: The present disclosure relates to signaling information in physical broadcast channel (PBCH) demodulation reference signals (DMRS). In one example, a network entity may transmit the signaling information carried by a DMRS in one or more resource elements of physical broadcast channel (PBCH) symbols within a bandwidth of a primary synchronization signal and a secondary synchronization signal of a synchronization signal block. In another example, a user equipment (UE) may receive the signaling information carried by the DMRS within one or more resource elements of PBCH symbols within a bandwidth of a primary synchronization signal and a secondary synchronization signal of a synchronization signal block on a broadcast channel from the network entity.

公开(公告)号：US10728916B2

公开(公告)日：2020-07-28

申请号：US16170558

申请日：2018-10-25

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh Ly ,  Heechoon Lee ,  Tingfang Ji

IPC: H04W72/12 ,  H04L5/00 ,  H04W56/00 ,  H04W24/02 ,  H04W72/04

Abstract: Certain aspects of the present disclosure provide techniques and apparats relating to designs for the remaining minimum system information (RMSI) control resource set (CORESET) and the other system information (OSI) CORESET. In certain aspects, a wireless communication device (e.g., user equipment) is enabled to determine the location of Type0-PDCCH common search space CORESET and the OSI CORESET in the frequency and time domains based on the location of the synchronization signal block (SSB) transmissions in the frequency and time domains. Determining the location of the RMSI CORESET and the OSI CORESET frequency and time resources enables the UE to receive the RMSI CORESET and the OSI CORESET, respectively.

公开(公告)号：US20200229172A1

公开(公告)日：2020-07-16

申请号：US16829732

申请日：2020-03-25

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Yang Yang ,  Heechoon Lee ,  Bilal Sadiq ,  June Namgoong

IPC: H04W72/04 ,  H04L5/00

Abstract: User equipment (UE)-specific information may be transmitted within a control resource set configured to carry resources common to UEs within a system. The UE-specific information may be associated with a search space having an aggregation level different from aggregation levels used with the common control resources and may occupy different modulation symbols within the common control resource set (e.g., to support flexible scheduling for multiple UEs). A base station and UE may operate in a system using one or more control resource sets within a system bandwidth. The UE may detect common control resources by monitoring decoding candidates in the control resource set according to a first set of aggregation levels. The UE may detect UE-specific control resources by monitoring decoding candidates in the control resource set according to other aggregation levels. The UE and base station may communicate based on control information obtained from the monitoring.

公开(公告)号：US20200221530A1

公开(公告)日：2020-07-09

申请号：US16732217

申请日：2019-12-31

Applicant: QUALCOMM Incorporated

Inventor： Heechoon Lee ,  Hung Dinh Ly ,  Tingfang Ji ,  Gavin Bernard Horn ,  Karthika Paladugu ,  Ozcan Ozturk

IPC: H04W76/27 ,  H04W56/00 ,  H04W68/02 ,  H04W8/02 ,  H04W16/28

Abstract: Techniques are described herein for signaling procedures that use a hierarchical mobility, which may be applied when a user equipment (UE) is operating in a radio resource control (RRC) inactive state or the RRC idle state. A wireless communication system may be configured with a plurality of areas in which one or more networks are established for communicating certain types of signals. Examples of the areas associated with networks may include a tracking area (TA), a radio access network area code (RAN-AC), a radio access network based notification area (RNA). A synchronization signal or a paging signal may be transmitted using a first set of communication resources in a first area, while the synchronization signal or the paging signal may be transmitted using a second set of communication resources in a second area different than the first set of communication resources.