公开(公告)号：US20220022234A1

公开(公告)日：2022-01-20

申请号：US17328257

申请日：2021-05-24

Applicant: QUALCOMM Incorporated

Inventor： Mostafa Khoshnevisan ,  Kazuki Takeda ,  Huilin Xu ,  Xiaoxia Zhang

IPC: H04W72/12 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive downlink control information (DCI) messages scheduling downlink data transmissions at the UE, where at least one DCI message schedules two or more downlink data transmissions. The UE may determine, based on the DCI messages, a first set of downlink resources associated with a first control resource set (CORESET) group and a second set of downlink resources associated with a second CORESET group. The UE may receive one or more first downlink data transmissions on the first set of downlink resources and one or more second downlink data transmissions on the second set of downlink resources. The UE may communicate using a first set of parameters associated with the first CORESET group and a second set of parameters associated with the second CORESET group.

公开(公告)号：US11228953B2

公开(公告)日：2022-01-18

申请号：US17248260

申请日：2021-01-15

Applicant: QUALCOMM Incorporated

Inventor： Liangping Ma ,  Huilin Xu ,  Jun Ma ,  Qiang Wu ,  Xiao Feng Wang ,  Iyab Issam Sakhnini ,  Dan Zhang

IPC: H04W36/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive system information associated with a set of neighboring cells included in a non-terrestrial network (NTN). The UE may be connected to or camped in a current cell included in the NTN. The current cell may be associated with a current platform. The UE may monitor a neighboring cell, of the set of neighboring cells, based at least in part on the system information. Numerous other aspects are provided.

公开(公告)号：US11223532B2

公开(公告)日：2022-01-11

申请号：US16592709

申请日：2019-10-03

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Huilin Xu ,  Xiaoxia Zhang

IPC: H04L12/24 ,  H04W72/04 ,  H04W72/12 ,  H04L1/00 ,  H04W72/08 ,  H04W28/06 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A bandwidth part (BWP) configuration may be identified for a user equipment (UE), where the BWP configuration is part of a shared radio frequency spectrum band. In some cases, a base station may transmit a resource configuration for the BWP to the UE that indicates a set of subbands for the BWP and an indication of which subbands are available for the resource contention and possible subsequent communications. The UE and base station may determine a set of time-frequency resources for at least one downlink signal to be transmitted from the base station to the UE based on the BWP and available subbands. In some cases, the resource configurations for the BWP may include a reference signal configuration, a semi-persistent scheduling configuration, a control resource set configuration, or a combination thereof for the available subbands of the BWP.

公开(公告)号：US20220007384A1

公开(公告)日：2022-01-06

申请号：US17362410

申请日：2021-06-29

Applicant: QUALCOMM Incorporated

Inventor： Huilin Xu ,  Wooseok Nam ,  Peter Pui Lok Ang

IPC: H04W72/12 ,  H04W72/04 ,  H04L27/26

Abstract: In one aspect, an apparatus configured for wireless communication includes at least one processor; and a memory coupled to the at least one processor. The at least one processor is configured to receive a control message indicating a reference signal offset information element (IE) for aperiodic reference signal offset determination and to receive a control channel transmission indicating a particular aperiodic reference signal transmission. The at least one processor is further configured to receive the particular aperiodic reference signal transmission based on a particular reference signal offset. The particular reference signal offset is determined based on the control channel transmission and a set of reference signal offset values, which are determined based on the reference signal offset IE and on one or more minimum scheduling conditions for cross-slot scheduling. Other aspects and features are also claimed and described.

公开(公告)号：US20210314989A1

公开(公告)日：2021-10-07

申请号：US17348320

申请日：2021-06-15

Applicant: QUALCOMM Incorporated

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

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

Abstract: Rate-matching and channel estimation are disclosed for new radio (NR) user equipments (UEs). In one aspect, a method of wireless communication includes obtaining coexistence information associated with neighboring wireless operations according to a legacy radio access technology (RAT) coexisting with a new radio (NR) RAT. The coexistence information includes a number of ports associated with reference signals of the legacy RAT, a frequency pattern of the reference signals of the legacy RAT, and a subframe type of corresponding subframes of the legacy RAT with transmission segments of the NR RAT. The method also includes determining one or more reference signal occasions of the legacy RAT coinciding with a shared downlink direction communication for the NR RAT and legacy RAT. The method further includes rate-matching reception of NR downlink transmissions within the shared downlink direction communication around the one or more reference signal occasions. Other aspects are described and claimed.

公开(公告)号：US20210314892A1

公开(公告)日：2021-10-07

申请号：US17173682

申请日：2021-02-11

Applicant: QUALCOMM Incorporated

Inventor： Alberto Rico Alvarino ,  Seyedkianoush Hosseini ,  Xiao Feng Wang ,  Liangping Ma ,  Ayan Sengupta ,  Jun Ma ,  Huilin Xu ,  Peter Gaal ,  Bharat Shrestha

IPC: H04W56/00 ,  H04L1/18 ,  H04W72/04 ,  H04L27/26 ,  H04W74/08

Abstract: A scheduling offset between an uplink and downlink radio frame timing structure of a user equipment (UE) may be updated to provide for more efficient utilization of hybrid automatic repeat request (HARQ) processes in a non-terrestrial network. For instance, different UEs may experience different round trip delays (RTDs) with a non-terrestrial cell. Different UEs may be configured with different scheduling offsets such that scheduling delays may be reduced and HARQ processes identifiers may be reused more rapidly. Additionally or alternatively, wireless communications systems may define one or more separation distances (or timing thresholds) for timing between communications and HARQ processes may be reused based on the separation distance threshold (e.g., such that a satellite may reuse a HARQ process ID for two scheduled communications that have not yet been performed by the UE).

公开(公告)号：US20210307010A1

公开(公告)日：2021-09-30

申请号：US17210462

申请日：2021-03-23

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Attia Abotabl ,  Wanshi Chen ,  Muhammad Sayed Khairy Abdelghaffar ,  Huilin Xu ,  Shimman Arvind Patel ,  Krishna Kiran Mukkavilli ,  Tingfang Ji

IPC: H04W72/04 ,  H04L5/14

Abstract: Methods, systems, and devices for wireless communications are described. A frequency band configuration for a full-duplex slot may be indicated, where a frequency band configuration may include one or more downlink frequency bands and one or more uplink frequency bands. In some cases, a frequency band configuration may also include one or more guard bands. A user equipment (UE) may determine the frequency band configuration for a full-duplex slot based on a frequency configuration indication, which may include an index for a table of frequency band configurations, one or more bitmaps, or respective start and length indications for each frequency band. A frequency band configuration may apply to one slot or to multiple slots.

公开(公告)号：US11122602B2

公开(公告)日：2021-09-14

申请号：US16506743

申请日：2019-07-09

Applicant: QUALCOMM Incorporated

Inventor： Huilin Xu ,  Jing Sun ,  Heechoon Lee ,  Peter Pui Lok Ang

IPC: H04W72/12 ,  H04W16/14

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive downlink control information within a control resource set (CORESET) configured with a wideband demodulation reference signal (DMRS) and including disjoint segments of resource blocks (RBs). The downlink control information may be located at least partially within a first segment of the disjoint segments and a second segment of the disjoint segments may be exclusive of the downlink control information. The downlink control information may include a grant of a set of resources for a downlink shared channel that overlaps with the CORESET. The UE may determine a rate matching operation for the wideband DMRS for a downlink shared channel for portions of the set of resources that overlap with the second segment of the disjoint segments, and receive the downlink shared channel on the set of resources according to the determined rate matching operation.

公开(公告)号：US11115911B2

公开(公告)日：2021-09-07

申请号：US16567577

申请日：2019-09-11

Applicant: QUALCOMM Incorporated

Inventor： Huilin Xu ,  Prashanth Haridas Hande ,  Heechoon Lee ,  Peter Pui Lok Ang ,  Keiichi Kubota

IPC: H04W48/16 ,  H04W24/08 ,  H04W72/04 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may obtain access to a base station by performing an initial access procedure within an initial access bandwidth that contains control channel resources. The UE may receive a configuration of a downlink bandwidth part (BWP) following the initial access procedure, and may determine that the downlink BWP fully contains the initial access bandwidth. In some cases, the UE may make the determination based on an indication sent from the base station. For instance, the indication may be provided as part of one or more control channel configurations transmitted to the UE. Based on determining that the downlink BWP fully contains the initial access bandwidth, the UE may monitor for control information in the downlink BWP using control channel resources in the downlink BWP that correspond to control channel resources used in the initial access bandwidth.

公开(公告)号：US20210273742A1

公开(公告)日：2021-09-02

申请号：US17185782

申请日：2021-02-25

Applicant: QUALCOMM Incorporated

Inventor： Huilin Xu ,  Wanshi Chen ,  Ahmed Attia Abotabl ,  Muhammad Sayed Khairy Abdelghaffar

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

Abstract: Methods, systems, and devices for wireless communications are described. For example, a method for wireless communications at a wireless device may include determining a rate matching configuration for a first channel (e.g., an uplink channel) associated with a second channel (e.g., a downlink channel). A wireless device may determine rate matching resources of an uplink channel based on the rate matching configuration. The wireless device may determine rate matching resources of a downlink channel based on the rate matching configuration. The wireless device may transmit a first message on the uplink channel or the downlink channel, respectively, where the transmitted channel includes the rate matching resources. The wireless device may receive a reference signal on one or more resources of the downlink channel or the uplink channel, respectively, where the one or more resources of the respective channel correspond to the rate matching resources on the transmitted channel.