公开(公告)号：US20180310286A1

公开(公告)日：2018-10-25

申请号：US16017749

申请日：2018-06-25

Applicant: QUALCOMM INCORPORATED

Inventor： Wanshi CHEN ,  Chao WEI ,  Neng WANG ,  Hao XU ,  Peter GAAL

IPC: H04W72/04 ,  H04W74/08 ,  H04L5/00 ,  H04B7/0413 ,  H04B7/06 ,  H04W24/10 ,  H04L29/06 ,  H04L5/14 ,  H04B17/345 ,  H04W28/06

Abstract: Certain aspects of the present disclosure relate to techniques and methods for reporting channel state information (CSI) feedback, for example, for UEs capable of supporting evolved interference management traffic adaptation (eIMTA).

公开(公告)号：US20180279324A1

公开(公告)日：2018-09-27

申请号：US15718418

申请日：2017-09-28

Applicant: QUALCOMM Incorporated

Inventor： Xiao feng WANG ,  Alberto RICO ALVARINO ,  Kapil BHATTAD ,  Hao XU

IPC: H04W72/12 ,  H04L5/00

Abstract: The present disclosure may support dedicated scheduling request resources in a NPUSCH format resource structure, a NPRACH, and/or an ACK/NACK transmission associated with a downlink transmission received at the UE. In addition, the present disclosure may provide various techniques to mitigate collisions between scheduling requests transmitted by a UE, uplink transmissions sent by different UEs, and/or downlink transmissions sent by a base station. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may receive one or more downlink transmissions from a base station. The apparatus may determine to transmit an uplink transmission to the base station. The apparatus transmit, to the base station, a scheduling request for the uplink transmission with an ACK/NACK associated with the one or more downlink transmissions using a narrowband NPUSCH format resource structure.

公开(公告)号：US20180279272A1

公开(公告)日：2018-09-27

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 ,  H04W4/70 ,  H04L5/00 ,  H04W24/08

Abstract: In order to more efficiently use system resources and to reduce power usage, a narrowband apparatus may determine a set of monitored resource blocks (RBs) on a subframe for monitoring for CRS from a base station may monitor for the CRS from the base station on the subframe based on the set of monitored RBs. The base station may determine a bandwidth for transmitting the CRS to a user equipment, wherein the bandwidth is less than a system bandwidth and may transmit 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.

公开(公告)号：US20180235000A1

公开(公告)日：2018-08-16

申请号：US15955471

申请日：2018-04-17

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar DAMNJANOVIC ,  Tao LUO ,  Srinivas YERRAMALLI ,  Peter GAAL ,  Hao XU ,  Wanshi CHEN

IPC: H04W72/12 ,  H04W72/04 ,  H04W74/00 ,  H04W74/08

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. A base station transmits a provisional grant uplink assignment to a set of UEs. When a UE receives the provisional grant uplink assignment, the UE performs a clear channel assessment (CCA) operation on a secondary component carrier (SCC) based on the provisional grant UL assignment, the SCC being a contention-based carrier. Then, the UE transmits a schedule request (SR) on the SCC when the CCA operation succeeds. The base station transmits grant confirmation(s) on the SCC in response to the detected SR(s). Once the UE receives a grant confirmation on the SCC in response to the SR, the UE transmits data on the SCC.

公开(公告)号：US20180220422A1

公开(公告)日：2018-08-02

申请号：US15718314

申请日：2017-09-28

Applicant: QUALCOMM Incorporated

Inventor： Kapil BHATTAD ,  Gowrisankar SOMICHETTY ,  Shashidhar VUMMINTALA ,  Alberto RICO ALVARINO ,  Hao XU

IPC: H04W72/04

Abstract: A method, a computer-readable medium, and an apparatus are provided. The apparatus may allocate one or more narrowbands for at least one downlink transmission to a UE. The apparatus may transmit information associated with the one or more narrowbands and a RIV to the UE. In one aspect, the RIV may indicate a common starting RB and a common set of RBs allocated for the at least one downlink transmission in each of the one or more narrowbands.

公开(公告)号：US20180192418A1

公开(公告)日：2018-07-05

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 ,  H04L27/26 ,  H04L5/00 ,  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：US20180167942A1

公开(公告)日：2018-06-14

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 ,  H04L5/00

CPC classification number: H04W72/0446 ,  H04L5/003 ,  H04W28/18

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：US20180098357A1

公开(公告)日：2018-04-05

申请号：US15619063

申请日：2017-06-09

Applicant: QUALCOMM Incorporated

Inventor： Alberto RICO ALVARINO ,  Peter GAAL ,  Wanshi CHEN ,  Hao XU ,  Jing SUN

IPC: H04W74/08 ,  H04W72/04 ,  H04L5/00 ,  H04W52/32

CPC classification number: H04W74/0833 ,  H04L5/001 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0092 ,  H04L5/0096 ,  H04W52/325 ,  H04W52/34 ,  H04W72/042 ,  H04W72/0453

Abstract: Certain aspects of the disclosure relate to techniques and apparatus for improving random access for SRS switching in a wireless network. Prior to transmitting a SRS, a UE may interrupt communication on a first carrier to switch from the first carrier to a second carrier to transmit a PRACH. To reduce interruption to the first carrier, the UE may use the beginning symbol(s) of a UpPTS on the second carrier to transmit the PRACH. In addition, to reduce interruption to the first carrier, the UE may monitor for another PDCCH order before transmitting another PRACH. Further, aspects of the present disclosure provide techniques and apparatus for jointly triggering SRS transmissions and performing power control for SRS transmissions. A BS may trigger SRS transmissions from multiple UEs, trigger SRS transmissions from multiple carriers from the same UE at the same time and/or perform power control separately for each carrier.

公开(公告)号：US20180098316A1

公开(公告)日：2018-04-05

申请号：US15619007

申请日：2017-06-09

Applicant: QUALCOMM Incorporated

Inventor： Renqiu WANG ,  Hao XU ,  Yi HUANG ,  Wanshi CHEN ,  Tingfang JI ,  Jing JIANG

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/0413 ,  H04L1/009 ,  H04L1/1621 ,  H04L1/1635 ,  H04L1/1664 ,  H04L1/1671 ,  H04L5/0046 ,  H04L5/0055 ,  H04L5/0057 ,  H04W72/0446

Abstract: Various additional and alternative aspects are described herein. In some aspects, the present disclosure provides a method for wireless communication. The method includes determining content to include in an uplink control information (UCI) based on a portion of a subframe that includes the UCI. The method further includes transmitting the UCI in the portion of the subframe.

公开(公告)号：US20180098314A1

公开(公告)日：2018-04-05

申请号：US15718220

申请日：2017-09-28

Applicant: QUALCOMM Incorporated

Inventor： Alberto RICO ALVARINO ,  Peter GAAL ,  Wanshi CHEN ,  Hao XU

IPC: H04W72/04 ,  H04W4/00 ,  H04L5/00

CPC classification number: H04W72/048 ,  H04L5/0051 ,  H04W4/70 ,  H04W72/042

Abstract: Certain aspects of the present disclosure generally relate to wireless communications, and more specifically to positioning reference signal (PRS) enhancements for enhanced machine type communication (eMTC). An example method generally includes determining a first bandwidth within a larger system bandwidth to transmit a first positioning reference signal (PRS) to a first type of user equipment (UE), determining a second bandwidth within the system bandwidth to transmit a second PRS to a second type of UE, and transmitting information associated with the first PRS and the second PRS.