公开(公告)号：US11153869B2

公开(公告)日：2021-10-19

申请号：US15889454

申请日：2018-02-06

Applicant: QUALCOMM Incorporated

Inventor： Hao Xu ,  Peter Gaal ,  Wanshi Chen ,  Tingfang Ji ,  Durga Prasad Malladi ,  Yongbin Wei ,  Naga Bhushan ,  Aleksandar Damnjanovic ,  Tao Luo

IPC: H04W72/04 ,  H04W28/18 ,  H04W72/12 ,  H04L5/00

Abstract: Certain aspects of the present disclosure relate to techniques for configuring an adaptive frame structure for wireless communications systems using unlicensed radio frequency spectrum. A base station (BS) may determine whether another device is transmitting on a channel in the unlicensed radio frequency spectrum or one or more other network conditions pertaining to the channel, determine a frame structure from a plurality of frame structures used for data communications based at least in part on the one or more network conditions, wherein each of the plurality of frame structures has a different frame duration, and communicate with a user equipment (UE) using the determined frame structure. A UE may determine a frame structure from a plurality of frame structures used for data communications, wherein each of the plurality of frame structures has a different frame duration, and communicate with a BS using the determined frame structure.

公开(公告)号：US20210314937A1

公开(公告)日：2021-10-07

申请号：US16841557

申请日：2020-04-06

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Wanshi Chen ,  Peter Gaal ,  Hwan Joon Kwon ,  Krishna Kiran Mukkavilli ,  Wei Yang

IPC: H04W72/04 ,  H04W72/14 ,  H04W52/04

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a downlink transmission via at least one of a primary cell, a secondary cell, or a combination thereof. The UE may identify a feedback indication for the downlink transmission. The UE may transmit a first feedback message that includes the feedback indication via the primary cell. The UE may transmit a second feedback message that also includes the feedback indication via the secondary cell.

公开(公告)号：US11140575B2

公开(公告)日：2021-10-05

申请号：US16059892

申请日：2018-08-09

Applicant: QUALCOMM Incorporated

Inventor： Alberto Rico Alvarino ,  Wanshi Chen ,  Peter Gaal

IPC: H04W28/06 ,  H04L1/00 ,  H04L5/00 ,  H04B7/06 ,  H04W72/04 ,  H04B7/0417 ,  H04L25/00 ,  H04L1/18

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may identify a coding rate threshold associated with transmitting an uplink control information (UCI) message during a time period, determine whether to reduce a size of the UCI message based on the coding rate threshold, and transmit at least a portion of the UCI message on uplink shared resources allocated for the time period. The UE may determine to reduce the size of the UCI message by dropping portions of the UCI message based on a size of uplink control resources, a size of uplink shared resources, additional parameters signaled to the UE, or some combination of these factors.

公开(公告)号：US11139931B2

公开(公告)日：2021-10-05

申请号：US15527291

申请日：2015-08-12

Applicant: QUALCOMM Incorporated

Inventor： Chao Wei ,  Peter Gaal ,  Wanshi Chen ,  Hao Xu ,  Jilei Hou ,  Neng Wang

IPC: H04W16/06 ,  H04L5/14 ,  H04W16/14 ,  H04L5/00

Abstract: Methods, systems, and apparatuses are described for flexible transmissions on one or more frequency division duplexing resources. In some aspects, a subset of resources originally allocated for transmissions in a frequency division duplex (FDD) mode of operation associated with a first base station is identified for reallocation, and the identified subset of resources is reallocated to transmissions in a time division duplex (TDD) mode of operation, for example, associated with a second base station.

公开(公告)号：US11129150B2

公开(公告)日：2021-09-21

申请号：US16847456

申请日：2020-04-13

Applicant: QUALCOMM Incorporated

Inventor： Shimman Arvind Patel ,  Wanshi Chen ,  Seyedkianoush Hosseini

IPC: H04W72/04 ,  H04W72/08 ,  H04W72/14 ,  H04L5/00 ,  H04W72/12

Abstract: Methods and apparatus are provided for shortened Transmission Time Interval (sTTI) configurations for low latency communications. A User Equipment (UE) receives at least one transmission in a first TTI of a first duration configured for the UE, the first TTI assigned within a second TTI of a second duration, wherein the first TTI is configured for Ultra-Reliable and Low-Latency Communications (URLLC) and uses, at least in part, a configuration for communicating using the second TTI.

公开(公告)号：US11122549B2

公开(公告)日：2021-09-14

申请号：US16192482

申请日：2018-11-15

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Peter Gaal ,  Wanshi Chen ,  Renqiu Wang

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

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may map channel state information (CSI) to first resource elements that are distributed in frequency, wherein the first resource elements are in a set of resources allocated on an uplink shared channel; map hybrid automatic repeat request (HARQ) feedback to second resource elements that are distributed in frequency, wherein the second resource elements are in the set of resources; wherein the second resource elements are reserved for the HARQ feedback and are different from the first resource elements; and transmit the CSI and the HARQ feedback on the uplink shared channel in accordance with the mappings. Numerous other aspects are provided.

公开(公告)号：US11122541B2

公开(公告)日：2021-09-14

申请号：US16836460

申请日：2020-03-31

Applicant: QUALCOMM Incorporated

Inventor： Hao Xu ,  Tao Luo ,  Tingfang Ji ,  Wanshi Chen ,  Peter Gaal ,  Yongbin Wei ,  Gavin Bernard Horn

IPC: H04W72/00 ,  H04W52/02 ,  H04W48/12 ,  H04W48/14

Abstract: The described aspects include methods and apparatus for activating a transmitter to communicate in a wireless network. A small cell can determine to activate the transmitter to serve user equipment (UE) in a wireless network. The small cell can then broadcast a portion of a set of broadcast signals in a radio frame and broadcast a remaining portion of the set of broadcast signals along with the portion of the set of broadcast signals in a subsequent radio frame. By refraining from immediately broadcasting all broadcast signals, the small cell can mitigate interference to other small cells. In addition, a UE can determine whether to generate random access channel (RACH) sequences for proximity determination or uplink timing synchronization based on parameters received in a RACH order. Moreover, a small cell with an active transmitter can decode discovery signals from a device to facilitate handover determination.

公开(公告)号：US11115977B2

公开(公告)日：2021-09-07

申请号：US16369308

申请日：2019-03-29

Applicant: QUALCOMM Incorporated

Inventor： Seyed Ali Akbar Fakoorian ,  Alberto Rico Alvarino ,  Peter Gaal ,  Wanshi Chen ,  Yongbin Wei ,  Juan Montojo ,  Renqiu Wang ,  Hao Xu ,  Xiaofeng Wang

IPC: H04W72/04 ,  H04L5/00 ,  H04L27/20

Abstract: Aspects of the present disclosure provide techniques for uplink (UL) data channel design. An example method is provided for operations which may be performed by a first apparatus. The example method generally comprises determining a number of pilot symbols to transmit for one or more slots of a first subframe based, at least in part, on a coverage enhancement (CE) level, and transmitting at least one uplink data channel having the determined number of pilot symbols in the one or more slots of the first subframe.

公开(公告)号：US11102818B2

公开(公告)日：2021-08-24

申请号：US15887293

申请日：2018-02-02

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Jing Sun ,  Peter Gaal ,  Heechoon Lee

IPC: H04W74/08 ,  H04W72/04 ,  H04L5/00

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for collision handling in NR. In certain aspect, a method for use by a wireless communications device includes detecting a collision between resources allocated to different channels and initiating collision handling when processing the different channels based on the detection, wherein at least one of the detection or the processing is based on one or more characteristics of the different channels or the wireless device. In certain aspects, the one or more characteristics comprise at least one of one or more numerologies associated with at least one of the different channels, a modulation order of at least one of the different channels, coding rate of at least one of the different channels, or one or more capabilities of the wireless device.

公开(公告)号：US11102779B2

公开(公告)日：2021-08-24

申请号：US15610869

申请日：2017-06-01

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Alberto Rico Alvarino ,  Hao Xu ,  Wanshi Chen ,  Juan Montojo ,  Yongbin Wei ,  Peter Gaal

IPC: H04W72/04 ,  H04L5/00 ,  H04B1/713 ,  H04W56/00

Abstract: Various aspects of utilizing narrowband internet of things (NB IOT) communication are still under development. According to an aspect of the disclosure, the apparatus may be a user equipment (UE) for wireless communication via narrowband internet of things (NB IOT) in an unlicensed spectrum using frequency hopping and digital modulation. The UE performs a synchronization with a base station via at least one of a licensed spectrum or the unlicensed spectrum. The UE communicates with the base station based on the synchronization.