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.

公开(公告)号：US20180098308A1

公开(公告)日：2018-04-05

申请号：US15718914

申请日：2017-09-28

Applicant: QUALCOMM Incorporated

Inventor： Jing SUN ,  Wanshi CHEN ,  Tingfang JI ,  Tao LUO ,  Heechoon LEE ,  Hao XU ,  Peter GAAL

IPC: H04W72/04 ,  H04L5/00

Abstract: The present disclosure describes various aspects of the implementation and design of Physical Downlink Control Channel (PDCCH) in 5G new radio (NR) applications. Aspects include methods, apparatuses, and computer-readable medium for one or more of multiple PDCCH search spaces, control resource block (CRB), irregular multiple slots or mini-slots grants, or fast control channel signaling for grant-free uplink (UL). For example, different scheduling entities can each have one or two search spaces defined (e.g., common and/or user equipment (UE)-centric search spaces). Also, CRBs can be used as units for PDCCH transmission instead of resource element groups/control channel elements (REGs/CCEs). In addition, irregularities in time domain, frequency domain, or both can be introduced in the granting of resource blocks (RBs) over multiple slots or mini-slots. Moreover, signaling can be used to indicate to a UE configured for grant-free UL the portion of the pool of resources available for grant-free UL.

公开(公告)号：US20180097595A1

公开(公告)日：2018-04-05

申请号：US15689476

申请日：2017-08-29

Applicant: QUALCOMM Incorporated

Inventor： Yi HUANG ,  Wei ZENG ,  Wanshi CHEN ,  Hao XU ,  Tingfang JI

IPC: H04L5/00 ,  H04L1/00

Abstract: Both precoded sounding reference signals (SRS) and unprecoded SRS are transmitted from a UE to an eNB. The UE may transmit both in the same subframe using either TDM or FDM. Or the UE may transmit each in different subframes from each other. The eNB uses some combination of the precoded SRS and the unprecoded SRS in scheduling resources for the UE. The eNB may also provide instruction to the UE for PUSCH precoding for data transmission. The eNB may signal the UE to use the same precoding as for the precoded SRS. The eNB may instead signal the UE to use different precoding by including the precoding information or delta information between the precoding used for the precoded SRS and the selected precoding for the PUSCH data.

公开(公告)号：US20180092106A1

公开(公告)日：2018-03-29

申请号：US15624980

申请日：2017-06-16

Applicant: QUALCOMM Incorporated

Inventor： Alberto RICO ALVARINO ,  Peter GAAL ,  Wanshi CHEN ,  Shimman Arvind PATEL ,  Ozcan OZTURK

IPC: H04W72/12 ,  H04W72/00

CPC classification number: H04W72/121 ,  H04W72/005 ,  H04W72/1205 ,  H04W72/1263

Abstract: Various aspects relate to determining whether one or more subframes are multicast-broadcast single-frequency network (MBSFN) subframes. A user equipment (UE) can receive, from a base station, a system information broadcast signal that includes an indication of one or more subframes as MBSFN subframes, and a subsequent system information broadcast signal that indicates at least scheduling information for a multicast control channel (MCCH) in at least a portion of the one or more subframes. The UE can determine, based at least in part on the indication or on the subsequent system information broadcast signal, a numerology for a physical multicast channel (PMCH) corresponding to the MCCH in at least the portion of the one or more subframes, and can process at least the portion of the one or more subframes based at least in part on the scheduling information or the numerology for the PMCH.

公开(公告)号：US20180091968A1

公开(公告)日：2018-03-29

申请号：US15462574

申请日：2017-03-17

Applicant: QUALCOMM Incorporated

Inventor： Hung LY ,  Heechoon LEE ,  Haitong SUN ,  Tingfang JI ,  Wanshi CHEN ,  Keiichi KUBOTA

IPC: H04W8/08 ,  H04L12/26 ,  H04W64/00 ,  H04W68/02 ,  H04W36/00

CPC classification number: H04W8/08 ,  H04L43/16 ,  H04W36/0061 ,  H04W36/0088 ,  H04W36/32 ,  H04W64/003 ,  H04W64/006 ,  H04W68/02 ,  H04W76/27

Abstract: Various aspects described herein relate to techniques for mobility mode selection in uplink-based and downlink-based mobility in wireless communications systems. In an aspect, a method for wireless communications may include determining that a user equipment (UE) is operating in a first mobility mode, determining whether the UE satisfies at least one condition associated with mobility of the UE for mobility mode selection, and selecting a second mobility mode based on a determination that the UE satisfies the at least one condition, wherein each of the first mobility mode and the second mobility mode is an uplink mobility mode or a downlink mobility mode. The techniques described herein may apply to different communications technologies, including the 5th Generation (5G) New Radio (NR) communications technology.

公开(公告)号：US20180083745A1

公开(公告)日：2018-03-22

申请号：US15692436

申请日：2017-08-31

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/00

Abstract: Certain aspects of the present disclosure provide techniques for flexible scheduling of reference signals and data in an uplink pilot time slot (UpPTS) in a wireless network. A method of wireless communication by a base station (BS) is provided. The method generally includes scheduling a first one or more symbols of a UpPTS for one or more user equipments (UEs) to transmit data and a second one more symbols of the UpPTS for one or more UEs to transmit one or more sounding reference signals (SRSs). The BS receives the data in the first one or more symbols and the one or more SRSs in the second one or more symbols. Based on the scheduling received from the BS, the UE determines the symbols of the UpPTS for transmission of SRSs and data.

公开(公告)号：US20180083743A1

公开(公告)日：2018-03-22

申请号：US15710960

申请日：2017-09-21

Applicant: QUALCOMM Incorporated

Inventor： Wanshi CHEN ,  Tingfang JI ,  Peter GAAL ,  Joseph Binamira SORIAGA ,  Krishna Kiran MUKKAVILLI ,  John Edward SMEE

IPC: H04L5/00 ,  H04L1/18 ,  H04W52/36

Abstract: Techniques for wireless communications in a system with long term evolution (LTE) integrated with new radio (NR) are provided. A method for wireless communications includes determining a configuration of component carrier(s) (CCs) of a first radio access technology (RAT) and CC(s) of a second RAT. The method also includes identifying one of the CC(s) in the first RAT as an uplink anchor CC based on the configuration. The method further includes identifying a HARQ timing for at least one of the CC(s) of the second RAT based on at least one of a symbol duration, a transmit time interval (TTI) length or a subframe structure of the one of the CC(s) of the first RAT. The method further yet includes sending feedback to a second node in the identified uplink anchor CC for transmissions received in the CC(s) of the second RAT.

公开(公告)号：US20180083676A1

公开(公告)日：2018-03-22

申请号：US15563357

申请日：2015-06-03

Applicant: Chao WEI ,  Yu ZHANG ,  Wanshi CHEN ,  Peter GAAL ,  QUALCOMM Incorporated

Inventor： Chao Wei ,  Yu ZHANG ,  Wanshi CHEN ,  Peter GAAL

IPC: H04B7/04 ,  H04B7/0452

CPC classification number: H04B7/0478 ,  H04B7/0452 ,  H04B7/0626 ,  H04B7/0632 ,  H04L1/0026 ,  H04L1/0031

Abstract: Enhanced channel state information (CSI) procedures for full dimension-multiple input, multiple output (FD-MIMO) is discussed in which a number of CSI reference signal (CSI-RS) ports configured for a user equipment (UE) is determined. In response to the CSI-RS ports including both horizontal and vertical ports, the UE may determine a first precoding matrix from a plurality of precoding matrices constructed by a Kronecker product of a horizontal precoding matrix and a vertical precoding matrix. The UE selects a predetermined number of precoding vectors out of the first precoding matrix and generates a wideband precoding matrix, based on the selected predetermined number of precoding vectors. The UE reports one or more CSI reports, wherein the CSI reports includes at least one precoding matrix indicator (PMI) for the first precoding matrix and at least an indication of the selection of the predetermined number of precoding vectors.