公开(公告)号：US20190387532A1

公开(公告)日：2019-12-19

申请号：US16432470

申请日：2019-06-05

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/12 ,  H04B1/713

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may schedule a plurality of repetitions of at least one system information block for a plurality of dwells within a hop cycle, wherein a subset of dwells, of the plurality of dwells within the hop cycle, includes a resource allocated for a respective portion of a corresponding repetition of a corresponding system information block of the plurality of repetitions of the at least one system information block. The base station may transmit, during the subset of dwells of the plurality of dwells within the hop cycle, the respective portion of the corresponding repetition of the corresponding system information block or another signal punctured into the respective portion of the corresponding repetition of the corresponding system information block. Numerous other aspects are provided.

公开(公告)号：US20190238219A1

公开(公告)日：2019-08-01

申请号：US16258454

申请日：2019-01-25

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/26 ,  H04L5/14 ,  H04L5/00 ,  H04W72/04 ,  H04W72/12

CPC classification number: H04B7/2656 ,  H04L5/0012 ,  H04L5/14 ,  H04W72/042 ,  H04W72/1215

Abstract: Aspects of the disclosure relate to a dynamic, configurable time division duplex (TDD) frame structure for hopping superframes utilized in narrowband Internet of Things (NB-IOT) wireless communication systems. The configurable frame structure includes an anchor segment residing on a plurality of anchor hopping frequencies and a data segment residing on one of a plurality of non-anchor hopping frequencies. The data segment includes a downlink portion, an uplink portion, and a configurable portion between the downlink control portion and the uplink control portion that may be configured to include at least one of downlink information or uplink information.

公开(公告)号：US20180338299A1

公开(公告)日：2018-11-22

申请号：US16048218

申请日：2018-07-27

Applicant: QUALCOMM Incorporated

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

IPC: H04W68/02 ,  H04W8/00 ,  H04W72/04 ,  H04L5/00 ,  H04W28/04 ,  H04W16/14

CPC classification number: H04W68/02 ,  H04L5/0048 ,  H04W8/005 ,  H04W16/14 ,  H04W28/04 ,  H04W72/0446

Abstract: In an embodiment, an apparatus (e.g., eNB) pages UEs on a shared communication. The apparatus obtains paging message(s) for transmission to UEs with different coverage levels. The apparatus transmits an extended common ePDCCH, followed by a paging ePDCCH, followed by repetitive transmissions of the paging message(s) over a plurality of PDSCH subframes. In a further embodiment, the apparatus obtains first and second sets of paging messages for transmission to different paging groups. The apparatus establishes non-overlapping POWs for the first and second paging groups to avoid a paging ePDCCH collision.

公开(公告)号：US20180332551A1

公开(公告)日：2018-11-15

申请号：US15855442

申请日：2017-12-27

Applicant: QUALCOMM Incorporated

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

IPC: H04W56/00

Abstract: Methods, systems, and devices for wireless communication are described for synchronization for wideband coverage enhancement. A user equipment (UE) may receive a primary synchronization signal (PSS) and a secondary synchronization signal (SSS) in a subframe. In one example, the SSS may be received in a symbol that is after a symbol in which the PSS is received, and after a set of symbols in which a set of other synchronization signals is received. In another example, the PSS may be received in each of a first plurality of consecutive symbols, and the SSS may be received in each of a second plurality of consecutive symbols, wherein the second plurality of consecutive symbols is after the first plurality of consecutive symbols within the subframe. The UE may synchronize with a base station based at least in part on the PSS and the SSS. Numerous other aspects are provided.

公开(公告)号：US20180124776A1

公开(公告)日：2018-05-03

申请号：US15635018

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 ,  H04L5/00 ,  H04W4/00

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 user equipment apparatus segments an uplink duration in each frame into multiple transmission units for each frequency, wherein a frame comprises an integer number of the transmission units. The apparatus transmits uplink communication based on the multiple transmission units, wherein each transmission unit comprises at least one on period and at least one off period corresponding to each of a plurality of frequencies, wherein during an on period the UE transmits uplink communication on the corresponding frequency and during an off period the UE refrains from transmitting uplink communication on the corresponding frequency. Each transmission unit may comprise multiple on periods and multiple off periods. The on/off periods may be configured by a base station or specified for each frame type.

公开(公告)号：US20250113374A1

公开(公告)日：2025-04-03

申请号：US18790221

申请日：2024-07-31

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/00 ,  H04W72/25

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) performs a first channel access procedure for accessing a channel occupancy time (COT) within the sidelink channel. The UE transmits a second-stage sidelink control information (SCI) message (SCI-2) including COT sharing information (COT-SI) for sharing the COT with other devices, and transmits a first sidelink message within a first portion of the COT. The UE identifies a second sidelink message that is expected to be received within a second portion of the COT, and performs a second channel access procedure for accessing the COT after identifying the second sidelink message based on the second sidelink message being expected within a set of resources reserved for the second sidelink message. Subsequently, the UE transmits a third sidelink message within a third portion of the COT based on a completion of the second channel access procedure.

公开(公告)号：US20250056440A1

公开(公告)日：2025-02-13

申请号：US18448114

申请日：2023-08-10

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao LIU ,  Gabi SARKIS ,  Giovanni CHISCI ,  Jing SUN ,  Xiaoxia ZHANG ,  Jae Ho RYU

IPC: H04W56/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitting user equipment (UE) may obtain an indication of a sidelink synchronization signal block (SSB) candidate index associated with a sidelink SSB transmission. The UE may transmit, to a receiving UE, the indication of the sidelink SSB candidate index, the indication of the sidelink SSB candidate index being included in a sidelink SSB. Numerous other aspects are described.

公开(公告)号：US20250048401A1

公开(公告)日：2025-02-06

申请号：US18365656

申请日：2023-08-04

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/40 ,  H04W72/0453

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques provide for determining whether to drop an additional signal at an edge interlaced resource block (IRB) of a common interlace. A user equipment (UE) may transmit additional signals via IRBs of the common interlace to improve an occupied channel bandwidth (OCB) of a feedback transmission and may drop one or more additional signals that are proximate (e.g., in frequency) to feedback indications of a configured interlace. To ensure the OCB of the transmission satisfies an OCB threshold, the UE may determine whether to drop an additional signal at an edge IRB, despite the edge IRB being proximate to a feedback indication, according to one or more rules that may be specific to edge IRBs.

公开(公告)号：US20240340865A1

公开(公告)日：2024-10-10

申请号：US18580135

申请日：2021-09-16

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao LIU ,  Yisheng XUE ,  Jing SUN ,  Junyi LI ,  Xiaoxia ZHANG ,  Luanxia YANG

IPC: H04W72/0446 ,  H04W72/25

CPC classification number: H04W72/0446 ,  H04W72/25

Abstract: A method of wireless communication, by a user equipment (UE), includes selecting a resource from a dedicated physical sidelink control channel (PSCCH) resource pool that has multiple potential PSCCH time domain resources with a mini-slot structure. The method also includes transmitting a mini-slot first stage sidelink control information (SCI-1) message on the selected resource. The mini-slot SCI-1 message is decoupled from a physical sidelink shared channel (PSSCH) associated with a data resource pool.

公开(公告)号：US20240260057A1

公开(公告)日：2024-08-01

申请号：US18508564

申请日：2023-11-14

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/25 ,  H04L27/26 ,  H04W72/0446

CPC classification number: H04W72/25 ,  H04L27/26025 ,  H04W72/0446

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of a multiple-slot unit structure that is to be used for sidelink communication, the multiple-slot unit structure having multiple contiguous slots that include, in sequence, a first time interval for automatic gain control, a second time interval for at least one of sidelink control communication or sidelink data communication, and a third time interval providing a time gap for transmission-reception switching. The UE may communicate, on a sidelink, in one or more multiple-slot units that are in accordance with the multiple-slot unit structure. Numerous other aspects are described.