公开(公告)号：US20220061095A1

公开(公告)日：2022-02-24

申请号：US17305454

申请日：2021-07-07

Applicant: QUALCOMM Incorporated

Inventor： Yisheng XUE ,  Jing SUN ,  Chih-Hao LIU ,  Xiaoxia ZHANG ,  Ozcan OZTURK ,  Tao LUO

IPC: H04W74/08 ,  H04W74/00 ,  H04W72/02 ,  H04W72/04 ,  H04W80/02

Abstract: Wireless communications systems and methods related to LBT aware autonomous sidelink sensing are provided. A first UE determines, based on a projected listen-before-talk (LBT) completion time, at least one of a sensing window or a first resource selection window. The first UE senses, based on the determining, in a sidelink resource pool within a shared radio frequency band during the sensing window. The first UE identifies, based on the sensing, a subset of resources from the sidelink resource pool that are within the first resource selection window. The first UE selects at least a first resource from the subset of resources. The first UE transmits, to a second UE using the selected first resource, a sidelink transmission.

公开(公告)号：US20210400704A1

公开(公告)日：2021-12-23

申请号：US17328986

申请日：2021-05-24

Applicant: QUALCOMM Incorporated

Inventor： Yisheng XUE ,  Jing SUN ,  Xiaoxia ZHANG ,  Chih-Hao LIU ,  Ozcan OZTURK ,  Lik Hang Silas FONG ,  Sony AKKARAKARAN

IPC: H04W72/12 ,  H04W74/08 ,  H04W72/14 ,  H04L1/18 ,  H04L1/00 ,  H04W72/04

Abstract: A method performed by a first sidelink (SL) user equipment (UE) includes receiving a downlink control information (DCI) from a number of coupled DCIs. The DCI grants reception of a number of scheduled physical SL shared channels (PSSCHs) over an unlicensed SL carrier, and requests a hybrid automatic repeat request (HARQ) response for the scheduled PSSCHs. The method also includes receiving at least one of the PSSCHs from a second SL UE. The method further includes transmitting the HARQ response based on the at least one received PSSCH.

公开(公告)号：US20210345122A1

公开(公告)日：2021-11-04

申请号：US16864898

申请日：2020-05-01

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao LIU ,  Xiaoxia ZHANG ,  Jing SUN ,  Yisheng XUE ,  Tao LUO

IPC: H04W16/14 ,  H04B1/7143 ,  H04W56/00 ,  H04W76/11 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine that a first signal is associated with a New Radio Unlicensed (NR-U) Light configuration; determine a frequency hopping (FH) pattern and a set of FH channels for a second signal based at least in part on the determination that the first signal is associated with the NR-U Light configuration; and receive the second signal based at least in part on the FH pattern and the set of FH channels. Numerous other aspects are provided.

公开(公告)号：US20180310341A1

公开(公告)日：2018-10-25

申请号：US15811125

申请日：2017-11-13

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Chih-Hao LIU ,  Tamer KADOUS

IPC: H04W74/08 ,  H04B1/7156 ,  H04W74/00

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. In one configuration, the apparatus may receive, from a base station, first information associated with one or more resources allocated for at least one PRACH transmission. In one aspect, the one or more resources may be allocated in an unlicensed spectrum. In another aspect, the one or more resources may be allocated based on a multi-tone PRACH bandwidth. The apparatus may also receive second information associated with a frequency hopping configuration from the base station. In one aspect, the frequency hopping configuration may be associated with at least one of the one or more allocated resources or the multi-tone PRACH bandwidth. The apparatus may transmit, to the base station, the at least one PRACH transmission using the one or more allocated resources within the multi-tone PRACH bandwidth and the frequency hopping configuration.

公开(公告)号：US20180124777A1

公开(公告)日：2018-05-03

申请号：US15635033

申请日：2017-06-27

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Tamer KADOUS ,  Chih-Hao LIU ,  Chirag PATEL ,  Alberto RICO ALVARINO

IPC: H04W72/04

CPC classification number: H04W72/0453 ,  H04B1/713 ,  H04L1/12 ,  H04L1/189 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/14 ,  H04L67/12 ,  H04W4/70 ,  H04W16/14 ,  H04W28/26 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/048 ,  H04W74/0808 ,  H04W88/02 ,  H04W88/08

Abstract: A method and apparatus for wireless communication in the unlicensed spectrum between an eNB and UEs having different bandwidths, e.g., between a narrowband UE and a wideband eNB. A UE apparatus transmits uplink transmissions in a plurality of transmission units and hops frequency bands in a first pattern across frames based on a base station hopping pattern. The apparatus may transmit uplink transmissions based on dual hopping patterns, and may hop in a second pattern across transmission units within the base station's channel occupancy within a frame. A base station apparatus may hop frequency bands in a first pattern across frames based on a base station hopping pattern, and may receive uplink transmissions in a narrowband from a UE in a plurality of transmission units within the frequency bands based on the base station hopping pattern.

公开(公告)号：US20170150523A1

公开(公告)日：2017-05-25

申请号：US15358745

申请日：2016-11-22

Applicant: QUALCOMM Incorporated

Inventor： Chirag Sureshbhai PATEL ,  Tao LUO ,  Chih-Hao LIU

IPC: H04W74/08 ,  H04W52/16 ,  H04L5/00 ,  H04B7/26 ,  H04L5/14 ,  H04W48/10

Abstract: Techniques for random access channel signaling on a shared communication medium are disclosed. A broadcast message including information associated with a Physical Random Access Channel (PRACH) may be transmitted and received on one or more subframes in a portion configured for downlink signaling. The broadcast message may comprise a contention type indicator, a timing advance indicator, or a combination thereof. The contention type indicator may indicate whether contention is in effect for transmission on the PRACH. The timing advance indicator may indicate whether an uplink transmission offset is in effect for transmission on the PRACH. Signaling over the PRACH may be transmitted and received on one or more subframes in a portion configured for uplink signaling.

公开(公告)号：US20170142713A1

公开(公告)日：2017-05-18

申请号：US15353876

申请日：2016-11-17

Applicant: QUALCOMM Incorporated

Inventor： Arumugam CHENDAMARAI KANNAN ,  Tao LUO ,  Chirag Sureshbhai PATEL ,  Tamer Adel KADOUS ,  Chih-Hao LIU

IPC: H04W72/04 ,  H04L5/14

CPC classification number: H04W72/0446 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/14 ,  H04W72/0413

Abstract: Techniques for control channel signaling on a shared communication medium are disclosed. An access point or an access terminal may communicate over a communication medium in accordance with a Time Division Duplex (TDD) frame structure defining a set of subframes that each span a plurality of time-domain symbol periods. The access point may transmit and the access terminal may receive control information via a short Physical Uplink Control Channel (sPUCCH) on one or more of the subframes in a portion of the subframe configured for uplink signaling. The sPUCCH may comprise one or more pilot symbols and one or more payload symbols that collectively occupy a subset of less than all of the symbol periods in each of the one or more subframes.

公开(公告)号：US20170019800A1

公开(公告)日：2017-01-19

申请号：US15186407

申请日：2016-06-17

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao LIU ,  June NAMGOONG ,  Srikant JAYARAMAN

IPC: H04W16/28 ,  H04W72/04 ,  H04B7/185

Abstract: Aspects of the present disclosure generally relate to techniques and apparatus that may help improve greatly reduce the implementation complexity of the ground station, and ground base-station user capacity by utilizing a subband beamformer for processing uplink signals received from aircraft at ground base stations, in an air-to-ground (ATG) system. The techniques presented herein may allow for dynamic subband allocation to different airborne devices with multi-user beamforming and subband combining.

Abstract translation: 本公开的方面通常涉及可以通过利用子带波束形成器来大大降低地面站的实施复杂度和地基站用户容量的技术和装置，用于处理从地面基站处的飞机接收的上行链路信号， 空对地（ATG）系统。 这里提出的技术可以允许对具有多用户波束成形和子带合并的不同机载设备的动态子带分配。

公开(公告)号：US20250150991A1

公开(公告)日：2025-05-08

申请号：US18888848

申请日：2024-09-18

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao LIU ,  Giovanni CHISCI ,  Jing SUN ,  Xiaoxia ZHANG

IPC: H04W52/38 ,  H04W52/24

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information indicating a power offset, per resource block, between one or more first resource blocks to carry acknowledgement/negative acknowledgement feedback and one or more second resource blocks in a common interlace. The UE may transmit, using the power offset and using a transmission power that depends on whether a downlink pathloss value is indicated in the configuration information, a physical sidelink feedback channel transmission in the one or more first resource blocks and the one or more second resource blocks. Numerous other aspects are described.

公开(公告)号：US20250126625A1

公开(公告)日：2025-04-17

申请号：US18728778

申请日：2022-03-26

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao LIU ,  Jing SUN ,  Yisheng XUE ,  Shaozhen GUO ,  Xiaoxia ZHANG

IPC: H04W72/25 ,  H04L5/00 ,  H04W72/044

Abstract: Certain aspects of the present disclosure provide techniques for type-1 hybrid automatic repeat request (HARQ) codebook usage and hashing for multi-bit sidelink feedback. Certain aspects provide a method for wireless communication by a first user equipment (UE). The method generally includes receiving, from a second UE, one or more sidelink data messages over a first subchannel during a time period having a duration of a first number of slots that is greater than one and transmitting, to the second UE, over a plurality of resource blocks of a sidelink feedback channel resource of a first feedback channel occasion of a set of periodically occurring feedback channel occasions, a first feedback message associated with the one or more sidelink data messages, wherein the first feedback message indicates a plurality of feedback bits comprising one or more feedback bits associated with the one or more sidelink data messages.