公开(公告)号：US10764021B2

公开(公告)日：2020-09-01

申请号：US15710731

申请日：2017-09-20

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Xiao feng Wang ,  Alberto Rico Alvarino ,  Hao Xu

IPC: H04L5/14 ,  H04W72/12 ,  H04L5/00 ,  H04B7/26 ,  H04L5/22 ,  H04W72/04 ,  H04L27/26 ,  H04L1/08 ,  H04L25/02 ,  H04L1/00 ,  H04W74/08 ,  H04L5/26

Abstract: There is a need to support narrowband TDD frame structure for narrowband communications. The present disclosure provides a solution by supporting one or more narrowband TDD frame structure(s) for narrowband communications. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. In a further aspect, the apparatus may receive information associated with a narrowband TDD frame structure having a first contiguous uplink transmission duration. The apparatus may transmit a first portion of an uplink transmission comprising a first number of slots in the first contiguous uplink transmission duration. In certain aspects, the uplink transmission may have a duration longer than the first contiguous uplink transmission duration.

公开(公告)号：US10750481B2

公开(公告)日：2020-08-18

申请号：US15909507

申请日：2018-03-01

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Peter Gaal ,  Shimman Arvind Patel ,  Hao Xu

IPC: H04W72/04 ,  H04L5/00 ,  H04L1/16 ,  H04L1/18

Abstract: Various aspects described herein relate to communicating in a wireless network. A transmission time interval (TTI) for an uplink control channel transmission within a subframe is determined, wherein the TTI comprises of a number of symbols which are a subset of a plurality of symbols in the subframe. Uplink control data can be transmitted over the uplink control channel during the TTI.

公开(公告)号：US10716129B2

公开(公告)日：2020-07-14

申请号：US16415851

申请日：2019-05-17

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Aleksandar Damnjanovic ,  Kiran Kumar Somasundaram ,  Tao Luo ,  Onkar Jayant Dabeer ,  Durga Prasad Malladi ,  Naga Bhushan ,  Yongbin Wei ,  Peter Gaal ,  Wanshi Chen ,  Anastasios Stamoulis ,  Hao Xu ,  Xiaoxia Zhang

IPC: H04W72/12 ,  H04W74/08 ,  H04B7/08 ,  H04L5/00 ,  H04L29/08 ,  H04W52/54 ,  H04W16/14 ,  H04W76/11

Abstract: Techniques are described for wireless communication. A first method may include inserting, in a first transmission using a first radio access technology (RAT), a channel occupancy identifier for a second transmission using a second RAT. The first method may also include transmitting the first transmission having the channel occupancy identifier over an unlicensed radio frequency spectrum band. A second method may include receiving, at a receiver operated using a first RAT, a channel occupancy identifier for a transmission using a second RAT. The channel occupancy identifier may be received over an unlicensed radio frequency spectrum band. The second method may also include decoding the channel occupancy identifier to identify a backoff period, and refraining from accessing the unlicensed radio frequency spectrum band using the first RAT based at least in part on the identified backoff period.

公开(公告)号：US10708903B2

公开(公告)日：2020-07-07

申请号：US16377857

申请日：2019-04-08

Applicant: QUALCOMM Incorporated

Inventor： Alberto Rico Alvarino ,  Madhavan Srinivasan Vajapeyam ,  Wanshi Chen ,  Hao Xu

IPC: H04W72/04 ,  H04W76/28 ,  H04W4/70 ,  H04W52/02 ,  H04L5/00 ,  H04L1/18

Abstract: In narrowband communication, channels may use repetitions in multiple subframes. SPS and DRX for the narrowband communication may not accommodate such repetitions, because repetitions for a channel may fall only partially within a DRX ON duration. An apparatus addresses this problem by determining a DRX ON duration, determining a set of subframes carrying a narrowband PDCCH candidate and determining that the DRX ON duration at least partially overlaps with the set of subframes of the narrowband PDCCH. The apparatus then refrains from decoding the first narrowband PDCCH candidate, decodes the first narrowband PDCCH candidate, or extends the DRX ON duration to include the set of subframes entirely and decoding the first narrowband PDCCH candidate carried in the set of subframes in the extended DRX ON duration. The apparatus may also determine DRX configuration parameters based on parameters of bundled channels, and handle invalid subframes for an SPS grant.

公开(公告)号：US10700822B2

公开(公告)日：2020-06-30

申请号：US16244718

申请日：2019-01-10

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Peter Gaal ,  Tao Luo ,  Aleksandar Damnjanovic ,  Yongbin Wei ,  Durga Prasad Malladi ,  Hao Xu ,  Srinivas Yerramalli

IPC: H04W72/14 ,  H04L1/18 ,  H04W16/14 ,  H04W74/08

Abstract: Systems and methods for uplink transmission scheduling are disclosed. A wireless device may monitor at least two downlink sub-frames for scheduling grants. The wireless device may receive a first uplink scheduling grant in one of the at least two downlink sub-frames for at least a first uplink sub-frame and receive a second uplink scheduling grant in another of the at least two downlink sub-frames for at least the first uplink sub-frame. The wireless device may perform an uplink transmission in the first uplink sub-frame based on one or both of the first uplink scheduling grant and the second uplink scheduling grant. For the uplink transmission, the wireless device may select a most recent uplink scheduling grant or select an uplink scheduling grant received in a downlink sub-frame at least a minimum number of sub-frames before the first uplink sub-frame.

公开(公告)号：US10694527B2

公开(公告)日：2020-06-23

申请号：US15667201

申请日：2017-08-02

Applicant: QUALCOMM Incorporated

Inventor： Hao Xu ,  Peter Gaal ,  Jing Jiang ,  Haitong Sun ,  Naga Bhushan ,  Tingfang Ji ,  Wei Zeng ,  Shimman Arvind Patel

IPC: H04W72/08 ,  H04W72/04 ,  H04L12/851 ,  H04L12/911 ,  H04W28/02

Abstract: Certain aspects of the present disclosure provide techniques for co-existence of reliable low-latency and other services in a wireless network. According to certain aspects, a method of wireless communication by a base station is provided. The method generally includes reserving a first region of a set of resources to a first user for at least a first uplink transmission related to a first type of service, receiving the first uplink transmission in the reserved first region, and dynamically assigning resources in a second region of the set of resources for at least a second uplink transmission related to the first type of service.

公开(公告)号：US10659207B2

公开(公告)日：2020-05-19

申请号：US15979008

申请日：2018-05-14

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Yi Huang ,  Wanshi Chen ,  Peter Gaal ,  Seyong Park ,  Hao Xu

IPC: H04L5/00 ,  H04W52/34 ,  H04W52/28 ,  H04W52/14 ,  H04W52/24 ,  H04W52/32 ,  H04W52/36 ,  H04W72/04 ,  H04W52/06 ,  H04W52/42 ,  H04W52/26

Abstract: Aspects of the present disclosure implement techniques for power control management between the base station and the UE to support multiple waveforms and services. In one example, the power control management system may implement independent power control loops for each waveform and service (e.g., eMBB, uRLLC, etc.) supported by the wireless communication system. For example, the base station may transmit a first power control command to a UE for first waveform (e.g., CP-OFDM) or service (e.g., eMBB) and a second power control command to the UE for the second waveform (DFT-OFDM) or service (e.g., uRLLC). Features of the present disclosure may also implement techniques that allow the base station to transmit a single power control command for configuring the power control for a plurality of waveforms or services. Upon receiving the power control commands, the UE may configure the transmission power for uplink traffic based on the power control commands.

公开(公告)号：US10652768B2

公开(公告)日：2020-05-12

申请号：US15132729

申请日：2016-04-19

Applicant: QUALCOMM Incorporated

Inventor： Hao Xu ,  Wanshi Chen ,  Madhavan Srinivasan Vajapeyam ,  Peter Gaal

IPC: H04W4/00 ,  H04W24/08 ,  H04W72/04 ,  H04W4/70 ,  H04W4/06 ,  H04W48/08 ,  H04W74/00

Abstract: Aspects of the present disclosure provided techniques that may be applied in systems to allow for communication over a control channel utilizing a relatively narrowband (e.g., six physical resource blocks) based search space. An exemplary method, performed, for example, by a machine type communication (MTC) UE, generally includes identifying, within a subframe, a first search space to monitor for a control channel that occupies a first number of physical resource blocks (PRBs) that represents a narrowband within a system bandwidth comprising a plurality of narrowbands and monitoring at least the first search space for the control channel, wherein the control channel comprises broadcast control information.

公开(公告)号：US20200084737A1

公开(公告)日：2020-03-12

申请号：US16680211

申请日：2019-11-11

Applicant: QUALCOMM Incorporated

Inventor： Heechoon Lee ,  Hung Ly ,  Tingfang Ji ,  Haitong Sun ,  Wanshi Chen ,  Peter Gaal ,  Hao Xu

IPC: H04W56/00 ,  H04L1/16 ,  H04L5/00 ,  H04W72/00

Abstract: Split synchronization signal configuration for unified synchronization channels and techniques for indicating communication block boundaries in wireless communication systems that use a unified synchronization signal configuration that may be used in different communication modes are described. The disclosed split synchronization signal configuration allows the same synchronization signal configuration to be used in different communication modes (or numerologies) that operate on different frequencies. The boundary indication techniques of embodiments allow efficient indication of the beginning of a communication block (such as a frame, subframe, or slot) relative to the beginning of a unified synchronization signal configuration.

公开(公告)号：US10588119B2

公开(公告)日：2020-03-10

申请号：US15926848

申请日：2018-03-20

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Alberto Rico Alvarino ,  Peter Gaal ,  Hao Xu

IPC: H04W72/04 ,  H04L5/00 ,  H04W24/08 ,  H04W4/70 ,  H04W88/02

Abstract: A narrowband apparatus determines a set of monitored resource blocks (RBs) on a subframe for monitoring for CRS from a base station monitors for the CRS from the base station on the subframe based on the set of monitored RBs. The base station determines a bandwidth for transmitting the CRS to a user equipment, wherein the bandwidth is less than a system bandwidth and transmits the CRS to the UE using the determined bandwidth, wherein the UE monitors for the CRS on a set of monitored RBs. The set of monitored RBs may include RBs allocated for a PDCCH search space, PDCCH and/or PDSCH transmissions and may further include RBs M subframes after and/or N subframes before the monitored RBs. The set of monitored RBs may include X RBs around a PDCCH search space and/or PDSCH.