公开(公告)号：US11677519B2

公开(公告)日：2023-06-13

申请号：US17022712

申请日：2020-09-16

Applicant: QUALCOMM INCORPORATED

Inventor： Jing Sun ,  Xiaoxia Zhang ,  Seyed Ali Akbar Fakoorian

IPC: H04L5/00 ,  H04W72/1263 ,  H04L5/02 ,  H04W72/20 ,  H04W92/18

CPC classification number: H04L5/0041 ,  H04L5/0007 ,  H04L5/0094 ,  H04L5/023 ,  H04W72/1263 ,  H04W72/20 ,  H04W92/18

Abstract: Wireless communications systems and methods related to sidelink communications in a shared radio frequency band are provided. A first user equipment (UE) receives, from a base station (BS), a configuration for frequency-interlaced resources in a shared radio frequency band for sidelink communication between the first UE and a second UE. The first UE communicates, with the second UE, the sidelink communication using the frequency-interlaced resources.

公开(公告)号：US11672011B2

公开(公告)日：2023-06-06

申请号：US17221521

申请日：2021-04-02

Applicant: QUALCOMM Incorporated

Inventor： Giovanni Chisci ,  Jing Sun ,  Arumugam Chendamarai Kannan ,  Vinay Chande ,  Aleksandar Damnjanovic ,  Xiaoxia Zhang

IPC: H04W74/08 ,  H04W16/28

CPC classification number: H04W74/0816 ,  H04W16/28

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitter node may determine a set of desired transmit beams to use for transmissions during a channel occupancy time (COT), wherein each transmit beam in the set of desired transmit beams is associated with an energy detection threshold (EDT). The transmitter node may configure a sensing beam associated with a directional listen-before-talk (LBT) procedure, wherein the sensing beam is associated with an EDT that is at least as strict as a strictest EDT associated with the set of desired transmit beams. The transmitter node may transmit using the set of desired transmit beams during the COT, wherein the COT is initiated based at least in part on an indication that the directional LBT procedure succeeded using the sensing beam. Numerous other aspects are described.

公开(公告)号：US11671994B2

公开(公告)日：2023-06-06

申请号：US17225916

申请日：2021-04-08

Applicant: QUALCOMM Incorporated

Inventor： Iyab Issam Sakhnini ,  Tao Luo ,  Qiang Wu ,  Jun Ma ,  Xiaoxia Zhang ,  Jing Sun ,  Juan Montojo ,  Peter Gaal ,  Mehmet Izzet Gurelli ,  Ahmed Abdelaziz Ibrahim Abdelaziz Zewail

IPC: H04W76/27 ,  H04W72/0453 ,  H04L5/00 ,  H04W72/0446 ,  H04W72/23 ,  H04W72/50 ,  H04W72/53

CPC classification number: H04W72/53 ,  H04L5/0048 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/23 ,  H04W72/535 ,  H04W76/27

Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for determining quasi co-location (QCL) and/or transmission configuration information (TCI) state assumption information for a dynamic control resource set (CORESET). In some cases, if certain conditions are met, a user equipment (UE) may follow QCL assumptions for a physical downlink shared channel (PDSCH) scheduled by a same PDCCH that indicated the dynamic CORESET. An example method by a UE generally includes receiving at least one downlink control information (DCI), of a first physical downlink control channel (PDCCH), that schedules at least one dynamic CORESET; and receiving a second PDCCH in the dynamic CORESET, wherein the UE is to apply at least one QCL assumption associated with a PDSCH for the at least one dynamic CORESET if one or more conditions are met.

公开(公告)号：US11671980B2

公开(公告)日：2023-06-06

申请号：US17234128

申请日：2021-04-19

Applicant: QUALCOMM Incorporated

Inventor： Mahmoud Taherzadeh Boroujeni ,  Tao Luo ,  Xiaoxia Zhang ,  Jing Sun ,  Peter Gaal ,  Junyi Li ,  Juan Montojo ,  Jelena Damnjanovic ,  Iyab Issam Sakhnini

IPC: H04W72/23 ,  H04W72/121 ,  H04W24/02 ,  H04W72/1273 ,  H04L5/00 ,  H04W16/26 ,  H04W36/20

CPC classification number: H04W72/23 ,  H04L5/005 ,  H04L5/0051 ,  H04W16/26 ,  H04W24/02 ,  H04W36/20 ,  H04W72/121 ,  H04W72/1273

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may monitor a unicast channel for a first downlink transmission from a base station using a first semi-persistent scheduling (SPS) configuration. The UE may receive downlink control information (DCI) from the base station indicating a second SPS configuration associated with a different coverage level than the first SPS configuration. In some cases, the DCI may be DCI that is common to a set of UEs. Here, the DCI may indicate the second SPS configuration and the UE may identify a set of parameters associated with the second SPS configuration based on a radio resource control (RRC) message received prior to the DCI. Based on receiving the indication of the second SPS configuration, the UE may monitor the unicast channel for a second downlink transmission from the base station using the second SPS configuration.

公开(公告)号：US11671975B2

公开(公告)日：2023-06-06

申请号：US16949710

申请日：2020-11-11

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Jing Sun ,  Xiaoxia Zhang ,  Mostafa Khoshnevisan

IPC: H04W72/23 ,  H04L1/1812 ,  H04W72/0453

CPC classification number: H04W72/23 ,  H04L1/1812 ,  H04W72/0453

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer storage media, for one-shot hybrid automatic repeat request (HARQ) feedback for a user equipment (UE). In one aspect, a configuration of whether and in what circumstances a new data indicator (NDI) may be provided by the UE is disclosed. In another aspect, one or more rules for one-shot HARQ feedback reporting when the UE has received a semi-persistent scheduling (SPS) allocation release are disclosed.

公开(公告)号：US11671867B2

公开(公告)日：2023-06-06

申请号：US17360689

申请日：2021-06-28

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Jing Sun ,  Yisheng Xue ,  Tao Luo ,  Arthur Gubeskys ,  Shuanshuan Wu ,  Tien Viet Nguyen

IPC: H04W28/02 ,  H04W74/08 ,  H04W24/08 ,  H04W72/56

CPC classification number: H04W28/0289 ,  H04W24/08 ,  H04W28/0284 ,  H04W72/56 ,  H04W74/0808

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment may determine parameters for congestion metrics based on a type for a channel access procedure associated with a sidelink transmission. The user equipment may determine a channel access procedure type for a sidelink channel transmission, and determine a limit for a channel occupancy (e.g., a channel occupancy ratio) based on the type. The user equipment may compare the channel occupancy with the limit to determine whether to transmit the sidelink channel transmission, based on whether the channel is available. In some aspects, the user equipment may additionally perform the channel access procedure (e.g., a listen before talk procedure) to determine whether to transmit the sidelink channel transmission. The user equipment may also perform channel measurements to obtain a congestion metric (e.g., a channel busy ratio) based on a threshold before transmitting the sidelink channel transmission.

公开(公告)号：US11665700B2

公开(公告)日：2023-05-30

申请号：US17125059

申请日：2020-12-17

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Vinay Chande ,  Xiaoxia Zhang ,  Arumugam Chendamarai Kannan ,  Srinivas Yerramalli ,  Tao Luo ,  Juan Montojo ,  Aleksandar Damnjanovic

IPC: H04W72/04 ,  H04W72/14 ,  H04L5/00 ,  H04W74/08 ,  H04W72/0446 ,  H04L1/1812

CPC classification number: H04W72/14 ,  H04L1/1812 ,  H04L5/0055 ,  H04W72/042 ,  H04W72/0446 ,  H04W74/0808

Abstract: Aspects are provided which improve LBT by associating contention windows with transmission burst lengths and by allowing contention windows and maximum burst lengths to be adjusted based on interference activity. For downlink, a UE receives a PG for a downlink transmission from a base station indicating a CCA length based on a contention window size associated at least with a burst length for the downlink transmission. The UE performs, after receiving the pre-grant, a CCA based on the CCA length, transmits an APG to the base station when the CCA is successful, and receives the downlink transmission in response to the APG. For uplink, the base station performs a CCA based on a contention window associated at least with a burst length for an uplink transmission, transmits an uplink grant to the UE when the CCA is successful, and receives the uplink transmission in response to the uplink grant.

公开(公告)号：US11664860B2

公开(公告)日：2023-05-30

申请号：US17448474

申请日：2021-09-22

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Jing Sun ,  Xiaoxia Zhang ,  Chih-Hao Liu

IPC: H04B7/02 ,  H04B7/0456 ,  H04B7/0417

CPC classification number: H04B7/0456 ,  H04B7/0417

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support mechanisms for sidelink beamforming alignment over a set of resources based on a deterministic sequence in a wireless communication system. In aspects, an sidelink initiator user equipment (UE) may initiate a beamforming alignment procedure with a responder UE over a the sidelink. The initiator UE may define a set of subchannels specified by a deterministic sequence. The set of subchannels may be subchannels over which the initiator UE may perform reception beam sweeping. The deterministic sequence may be anchored to a direct frame number (DFN) of the sidelink frame without initial sensing, and may be determined via a sequence index, as a function of sidelink UE identification ID(s), or a combination thereof. In this manner, the number of bits for indicating the deterministic sequence to the responder UE may be reasonable, manageable, and/or moderate.

公开(公告)号：US11659523B2

公开(公告)日：2023-05-23

申请号：US16987064

申请日：2020-08-06

Applicant: QUALCOMM INCORPORATED

Inventor： Pravjyot Singh Deogun ,  Kapil Bhattad ,  Jing Sun ,  Mostafa Khoshnevisan ,  Xiaoxia Zhang ,  Ahmed Zaki ,  Gowrisankar Somichetty

IPC: H04W72/04 ,  H04W72/14 ,  H04L1/18 ,  H04L1/1812

CPC classification number: H04W72/04 ,  H04L1/1812 ,  H04W72/14

Abstract: Wireless communications systems and methods related to bandwidth part (BWP) switching after data communication are provided. A user equipment (UE) receives, from a base station (BS) in a first bandwidth part (BWP), one or more data bursts and BWP switching information. The UE switches from the first BWP to a second BWP based on the BWP switching information after receiving the one or more data bursts. The UE communicates, with the BS, a communication in the second BWP after the switching.

公开(公告)号：US20230155803A1

公开(公告)日：2023-05-18

申请号：US18056036

申请日：2022-11-16

Applicant: QUALCOMM Incorporated

Inventor： Mostafa Khoshnevisan ,  Jing Sun ,  Xiaoxia Zhang ,  Tao Luo

IPC: H04L5/10 ,  H04L5/00 ,  H04W72/0446 ,  H04W72/0453 ,  H04W80/08 ,  H04W76/27 ,  H04W72/23 ,  H04W72/53

CPC classification number: H04L5/10 ,  H04L5/005 ,  H04W72/0446 ,  H04W72/0453 ,  H04W80/08 ,  H04W76/27 ,  H04W72/23 ,  H04W72/53 ,  H04L5/001

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer storage media, for demodulation reference signal (DMRS) and cell specific reference signal (CRS) collision avoidance procedures for wireless communication. Conventional networks and devices may be unable to perform DMRS shifting in some modes. For example, when considering two transmissions of multiple TRP modes, if a DMRS symbol for one transmission is shifted due to a collision with a CRS pattern, the alignment of the transmissions may be altered. If DMRS symbols of the transmissions are not aligned, interference or decoding failure may occur. The disclosure enables procedures for performing DMRS shifting in multiple TRP modes. For example, the DMRS symbols of both transmissions may be shifted responsive to determining an overlap for one transmission. Such shifting may enable the alignment of the DMRS locations for both transmissions to enable decoding of the transmissions.