公开(公告)号：US10425973B2

公开(公告)日：2019-09-24

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 ,  H04B7/26 ,  H04L5/00 ,  H04L5/14 ,  H04W48/10 ,  H04W52/16 ,  H04W74/00 ,  H04W84/12 ,  H04W16/14

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：US20190149185A1

公开(公告)日：2019-05-16

申请号：US16242969

申请日：2019-01-08

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Srinivas Yerramalli ,  Chirag Sureshbhai Patel ,  Tamer Kadous ,  Hao Xu

IPC: H04B1/403 ,  H04L5/00 ,  H04B1/00 ,  H04W72/04 ,  H04W16/14 ,  H04L27/00 ,  H04B7/26 ,  H04B1/26 ,  H04B1/707 ,  H04B7/24

Abstract: Methods, systems, and devices for wireless communication are described. Resources for narrowband communication in an unlicensed radio frequency spectrum band may be configured and allocated based on resource availability, regulatory constraints, and device capability or category. A narrowband wireless device, such as a machine type communication device or other relatively low complexity device, may communicate using one or more narrowband carriers, which may occupy between one tone and multiple resource blocks in an unlicensed spectrum band (e.g., any number of resources between one (1) tone and multiple resource blocks (RBs)). Different device types may thus be configured differently as they move between geographic regions. The base station may then communicate with the narrowband mobile device based on the resource allocation and the carrier configuration.

公开(公告)号：US20190141707A1

公开(公告)日：2019-05-09

申请号：US16180772

申请日：2018-11-05

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Tamer Kadous ,  Chih-Hao Liu

IPC: H04W72/04 ,  H04W72/02

Abstract: A base station (BS) may communicate with a user equipment (UE) using a subset of channels. The BS may select a subset of a set of channels for use in communication with the UE. The BS may transmit, to the UE, a signal to identify the subset of channels. In some aspects, the BS may transmit, and the UE may receive, a channel list indicator identifying the subset of channels. The channel list indicator may include an integer value, which the UE may use to identify a subset of combinatorial factors. Based at least in part on the subset of combinatorial factors, the UE may identify the subset of the set of channels for use in communication with the BS. The UE may communicate with the BS using at least one of the subset of the set of channels, such as in a frequency hopping communication system and/or the like.

公开(公告)号：US20190037525A1

公开(公告)日：2019-01-31

申请号：US15985061

申请日：2018-05-21

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Srinivas Yerramalli ,  Tamer Kadous

IPC: H04W64/00 ,  G01S5/10 ,  G01S5/02 ,  H04L5/00 ,  H04B1/7143

Abstract: Methods, systems, and devices for wireless communication that support positioning techniques are described. One method may include receiving a positioning reference signal (PRS) configuration; receiving a plurality of PRS transmissions over a shared radio frequency spectrum from a plurality of base stations; and transmitting a measurement report of the PRS transmissions. The PRS transmissions may be received according to the PRS configuration. Another method may include receiving a discovery reference signal (DRS) transmission from a first base station; decoding a cell identifier of the first base station based on the DRS transmission; determining timing information of the first base station based on the DRS transmission; and transmitting a measurement report of the DRS transmission to a second base station.

公开(公告)号：US12294977B2

公开(公告)日：2025-05-06

申请号：US17677952

申请日：2022-02-22

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/02 ,  H04L27/26 ,  H04W72/0453 ,  H04W72/20 ,  H04W72/30

Abstract: Aspects relate to techniques for exchanging resource pool (RP) configurations between wireless communication devices. A transmitting wireless communication device can transmit a remaining minimum system information (RMSI) message including a RP configuration of the transmitting wireless communication device to at least one receiving wireless communication device. The RMSI message is transmitted within a minimum resource block set that is common to both the transmitting wireless communication device and the at least one receiving wireless communication device. The transmitting wireless communication device may then communicate with the at least one receiving wireless communication device on a sidelink based on the RP configuration.

公开(公告)号：US12250679B2

公开(公告)日：2025-03-11

申请号：US17443880

申请日：2021-07-28

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/20 ,  H04L5/00 ,  H04W72/044 ,  H04W72/121 ,  H04W72/23 ,  H04W88/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a helper user equipment (UE) may receive, from a base station, a signaling message requesting the helper UE to monitor for and transmit a sidelink communication in a manner that uses a single-frequency network, wherein the sidelink communication is to be transmitted by a source UE to a destination UE that is different from the helper UE. The helper UE may receive the sidelink communication, transmitted by the source UE to the destination UE, in a first time-frequency resource of the single-frequency network. The helper UE may transmit the sidelink communication in a second time-frequency resource of the single-frequency network, wherein the second time-frequency resource is indicated to the helper UE by the base station. Numerous other aspects are described.

公开(公告)号：US12167453B2

公开(公告)日：2024-12-10

申请号：US17379697

申请日：2021-07-19

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Jing Sun ,  Yisheng Xue ,  Xiaoxia Zhang ,  Sony Akkarakaran ,  Tao Luo ,  Juan Montojo ,  Peter Gaal ,  Piyush Gupta

IPC: H04W74/0816 ,  H04L1/1867 ,  H04W72/0446 ,  H04W72/23 ,  H04W74/00 ,  H04W92/18

Abstract: Techniques for wireless communications are described. A user equipment (UE) may receive downlink control information (DCI) scheduling sidelink transmissions in one or more sets of multiple transmission time intervals (TTIs) over a shared spectrum. The UE may perform a listen-before-talk (LBT) for one or more of the TTIs in the one or more sets of multiple TTIs, and the UE may transmit, to a base station, an indication of results of the LBT performed for the one or more TTIs. Because the UE may provide the results of the LBT to the base station, the base station may be able to schedule sidelink transmissions from the UE based on the results of the LBT. As such, the UE may experience increased throughput in sidelink communications since the scheduling at the base station may be improved.

公开(公告)号：US12149987B2

公开(公告)日：2024-11-19

申请号：US17451076

申请日：2021-10-15

Applicant: QUALCOMM Incorporated

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

IPC: H04W28/26 ,  H04L5/00

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support a super slot configuration for new radio (NR) sidelink over millimeter wave (mmW) operating frequencies. In a first aspect, a method of wireless communication by a user equipment (UE) includes obtaining a sidelink resource pool configuration including configuration of one or more super slots, wherein each super slot includes a plurality of slots contiguous in a time domain The UE may select one or more sidelink resource slots for sidelink transmissions in a sidelink resource pool and transmit an enhanced sidelink control information (eSCI) message in a first slot of a first super slot, wherein the eSCI message indicates a reservation of slots corresponding to the one or more sidelink resource slots. The UE may then send the sidelink transmissions on at least one slot of the reserved slots. Other aspects and features are also claimed and described.

公开(公告)号：US12133089B2

公开(公告)日：2024-10-29

申请号：US17670161

申请日：2022-02-11

Applicant: QUALCOMM Incorporated

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

IPC: H04W16/28 ,  H04W72/044 ,  H04W72/20 ,  H04W76/19 ,  H04W76/28

CPC classification number: H04W16/28 ,  H04W72/046 ,  H04W72/20 ,  H04W76/19 ,  H04W76/28

Abstract: Disclosed are systems and techniques for wireless communications. In one example, an apparatus for wireless communication at a first user equipment (UE) can send a first sidelink communication to a second UE using a first beam pair of a unicast link with the second UE, wherein the first beam pair includes a first transmission beam and a first reception beam. In some aspects, the apparatus can determine a fault associated with at least one of the first transmission beam and the first reception beam.

公开(公告)号：US12108371B2

公开(公告)日：2024-10-01

申请号：US17647724

申请日：2022-01-11

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Junyi Li ,  Sony Akkarakaran ,  Tao Luo ,  Wooseok Nam ,  Xiaojie Wang ,  Yan Zhou ,  Peter Gaal ,  Juan Montojo ,  Xiaoxia Zhang ,  Hua Wang ,  Piyush Gupta ,  Kobi Ravid ,  Chih-Hao Liu ,  Lik Hang Silas Fong ,  Jing Sun

IPC: H04W72/0446 ,  H04L27/26 ,  H04W52/52

CPC classification number: H04W72/0446 ,  H04L27/2607 ,  H04W52/52

Abstract: Certain aspects of the present disclosure provide techniques for configuring sidelink slots without symbols for automatic gain control. One aspect provides a method for wireless communication by a user equipment, including receiving a first cyclic prefix of a first symbol within a slot at the user equipment. The method further includes configuring a first automatic gain control setting based on a received power in the first cyclic prefix of the first symbol, and receiving a data portion of the first symbol using the first automatic gain control setting.