公开(公告)号：US11159354B2

公开(公告)日：2021-10-26

申请号：US16673452

申请日：2019-11-04

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Yang Yang ,  Heechoon Lee ,  Tao Luo ,  Peter Gaal

IPC: H04L27/26 ,  H04B7/06 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/01 ,  H04L25/02 ,  H04L5/00

Abstract: Aspects herein describe increasing density of reference signal transmissions in wireless communications. A plurality of reference signal configurations, each indicating resource elements for one or more antenna ports over which reference signals for the one or more antenna ports are scheduled for transmission, can be received. An association configuration indicating an association between at least two antenna ports as having similar channel characteristics can also be received. A plurality of reference signals can be received in the resource elements corresponding to the at least two antenna ports as indicated in the at least two of the plurality of reference signal configurations, which can be used to perform a channel measurement of the similar channel characteristics of channels of the at least two antenna ports over at least a portion of the plurality of reference signals.

公开(公告)号：US11153873B2

公开(公告)日：2021-10-19

申请号：US16581168

申请日：2019-09-24

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Huilin Xu ,  Peter Pui Lok Ang ,  Heechoon Lee

IPC: H04W4/00 ,  H04W72/04 ,  H04W72/02 ,  H04W88/02

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determining that a first physical downlink control channel (PDCCH) candidate and a second PDCCH candidate in a control resource set (CORESET) are aligned with each other, wherein the first PDCCH candidate is a common search space (CSS) candidate and the second PDCCH candidate is a UE-specific search space (UESS) candidate; and decode downlink control information in accordance with a selected candidate, of the CSS candidate or the UESS candidate, based at least in part on a rule indicating whether the time-domain resource allocation is to be determined in accordance with the CSS candidate or the UESS candidate. Numerous other aspects are provided.

公开(公告)号：US11109376B2

公开(公告)日：2021-08-31

申请号：US14844889

申请日：2015-09-03

Applicant: QUALCOMM Incorporated

Inventor： Tamer Adel Kadous ,  Heechoon Lee ,  Tingfang Ji ,  Durga Prasad Malladi ,  Tao Luo

IPC: H04W72/04 ,  H04W16/14 ,  H04L27/00 ,  H04W84/04 ,  H04W84/12 ,  H04L5/00 ,  H04W48/16 ,  H04W72/08

Abstract: Techniques for structured channel rasters for unlicensed spectrum are described. In an aspect, a first channel raster is identified, where the first channel raster is determined from a set of carrier frequencies and is used over an unlicensed or shared spectrum for a wireless wide area network (WWAN). The first channel raster is aligned with a second channel raster that is used over the unlicensed spectrum for a wireless local area network (WLAN). A frequency scanning may be performed by a user equipment (UE) or a network entity over the unlicensed spectrum for the WWAN using the first channel raster. In an aspect, the first channel raster is used over the unlicensed spectrum for the WWAN supported by the user equipment (UE) or the network entity.

公开(公告)号：US11102818B2

公开(公告)日：2021-08-24

申请号：US15887293

申请日：2018-02-02

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Jing Sun ,  Peter Gaal ,  Heechoon Lee

IPC: H04W74/08 ,  H04W72/04 ,  H04L5/00

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for collision handling in NR. In certain aspect, a method for use by a wireless communications device includes detecting a collision between resources allocated to different channels and initiating collision handling when processing the different channels based on the detection, wherein at least one of the detection or the processing is based on one or more characteristics of the different channels or the wireless device. In certain aspects, the one or more characteristics comprise at least one of one or more numerologies associated with at least one of the different channels, a modulation order of at least one of the different channels, coding rate of at least one of the different channels, or one or more capabilities of the wireless device.

公开(公告)号：US20210243793A1

公开(公告)日：2021-08-05

申请号：US17235487

申请日：2021-04-20

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Peter Gaal ,  Wanshi Chen ,  Alexei Yurievitch Gorokhov ,  Jing Sun ,  Joseph Binamira Soriaga ,  Heechoon Lee

IPC: H04W72/12 ,  H04L5/00 ,  H04W28/06 ,  H04W72/04

Abstract: Different sets of downlink control information (DCI) fields may be configured for DCI that includes an indication to trigger bandwidth part switching at a user equipment (UE). For example, a UE may receive DCI that triggers the UE to switch operation from a first bandwidth part to a second bandwidth part. The UE may also identify a set of transformable DCI fields and a set of non-transformable DCI fields within the DCI. The UE may then determine updated content of the DCI for application to the second bandwidth part based on whether DCI fields are included in the set of transformable or the set of non-transformable fields. In some cases, the UE may identify a null assignment in the received DCI and may switch its operation from the first bandwidth part to the second bandwidth part based on the null assignment.

公开(公告)号：US11050598B2

公开(公告)日：2021-06-29

申请号：US16199958

申请日：2018-11-26

Applicant: QUALCOMM Incorporated

Inventor： Peter Gaal ,  Valentin Alexandru Gheorghiu ,  Timo Ville Vintola ,  Hung Dinh Ly ,  Yang Yang ,  Jing Jiang ,  Heechoon Lee

IPC: H04L27/26 ,  H04W72/04 ,  H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive carrier information identifying at least one of: an initial absolute frequency for a carrier, a tone boundary offset value for the carrier, a number of resource blocks included in the carrier, or a frequency offset from a reference frequency; and determine a resource allocation of the carrier based at least in part on the carrier information and a subcarrier spacing of the user equipment. Numerous other aspects are provided.

公开(公告)号：US11044757B2

公开(公告)日：2021-06-22

申请号：US16151405

申请日：2018-10-04

Applicant: QUALCOMM Incorporated

Inventor： Heechoon Lee ,  Peter Gaal ,  Jing Sun ,  Peter Pui Lok Ang

IPC: H04W74/08 ,  H04W76/11 ,  H04W74/00 ,  H04W72/04 ,  H04L5/00 ,  H04B7/0413

Abstract: Certain aspects of the present disclosure relate to communication systems, and more particularly, to random access channel (RACH) procedures in deployments where a RACH transmission may be sent on different UL carriers, which may include supplemental UL (SUL) carriers.

公开(公告)号：US11038646B2

公开(公告)日：2021-06-15

申请号：US16014940

申请日：2018-06-21

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Jing Sun ,  Heechoon Lee ,  Makesh Pravin John Wilson

IPC: H04L5/00 ,  H04B7/06 ,  H04B7/0413

Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a device may determine a shared demodulation reference signal (DMRS) configuration for a plurality of resource blocks of a channel, wherein a frequency domain associated with the plurality of resource blocks overlaps for a control resource of the channel and a data resource of the channel, and wherein the plurality of resource blocks are associated with a shared precoding scheme. The device may transmit a DMRS based at least in part on determining the shared DMRS configuration to enable a receiver to receive the plurality of resource blocks of the channel. Numerous other aspects are provided.

公开(公告)号：US11032036B2

公开(公告)日：2021-06-08

申请号：US16101255

申请日：2018-08-10

Applicant: QUALCOMM Incorporated

Inventor： Yang Yang ,  Wanshi Chen ,  Peter Gaal ,  Heechoon Lee ,  Joseph Binamira Soriaga ,  Chih-Ping Li ,  Bilal Sadiq

IPC: H04L5/00 ,  H04W72/12 ,  H04L1/18 ,  H04W72/04

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for handling carrier aggregation (CA) involving component carriers (CCs) having different numerologies.

公开(公告)号：US11032001B2

公开(公告)日：2021-06-08

申请号：US16373512

申请日：2019-04-02

Applicant: QUALCOMM incorporated

Inventor： Peter Pui Lok Ang ,  Peter Gaal ,  Alexei Yurievitch Gorokhov ,  Tingfang Ji ,  Tao Luo ,  Heechoon Lee ,  Joseph Binamira Soriaga

IPC: H04B7/216 ,  H04B7/26 ,  H04B7/005 ,  H04B7/0413

Abstract: Bandwidth part (BWP) switching may benefit a wireless communications system. Such BWP switching may include indication of one or more timing parameters used for time domain resource allocation. For example, the timing parameters may be indicated based on an index to a look-up table (e.g., a bit field in a control transmission). In some cases, one or more tables may be configured for a given BWP, and different tables may contain a different number of rows. The size of the bit field indexing the table may in turn depend on the number of rows. When switching from a first BWP to a second BWP, the size of the bit field may be based on the table of the first BWP, but the bit field may index the table of the second BWP. Techniques supporting improved timing parameter management during BWP switching are discussed herein.