公开(公告)号：US20190215835A1

公开(公告)日：2019-07-11

申请号：US16356813

申请日：2019-03-18

Applicant: QUALCOMM Incorporated

Inventor： Alberto RICO ALVARINO ,  Peter GAAL ,  Xiao Feng WANG ,  Wanshi CHEN ,  Seyed Ali Akbar FAKOORIAN ,  Hao XU ,  Renqiu WANG ,  Jing LEI

IPC: H04W72/04 ,  H04L5/00 ,  H04W4/70 ,  H04W72/08

CPC classification number: H04W72/0453 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0092 ,  H04W4/70 ,  H04W72/087 ,  H04W88/02 ,  H04W88/08

Abstract: Aspects of the present disclosure provide techniques for design of channel raster for narrowband operation. One example method, performed by a base station, generally includes determining, based on one or more conditions, an exact frequency location of one channel of one or more channels to perform narrowband communications with a user equipment. The method also includes transmitting an indication of the one or more conditions to the user equipment. The method further includes communicating with the UE, based at least in part on the exact frequency location of the one channel.

公开(公告)号：US20190182818A1

公开(公告)日：2019-06-13

申请号：US16276201

申请日：2019-02-14

Applicant: QUALCOMM Incorporated

Inventor： Wanshi CHEN ,  Peter GAAL

IPC: H04W72/04 ,  H04L5/00 ,  H04W74/08 ,  H04L5/14

CPC classification number: H04W72/0406 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0073 ,  H04L5/14 ,  H04L5/1469 ,  H04W72/0446 ,  H04W72/1231 ,  H04W74/0808 ,  H04W88/02

Abstract: A modified subframe structure is defined for a subset of a plurality of subframes. The modified subframe structure includes a first portion with one or more blank symbols over which a network node can measure monitor to determine whether the subframe is used as a downlink (or uplink) subframe by a neighboring network node. The modified subframe structure can also include a second portion of symbols for communicating control information or data in the subframe, which can be based on determining whether the subframe is used as a downlink (or uplink) subframe by the neighboring network node. This can lessen the impact of possible interference caused by the network nodes dynamically switching time division duplexing (TDD) subframe configurations by enabling network nodes to determine when a neighboring node is transmitting in a subframe, and accordingly avoiding transmitting in the subframe.

公开(公告)号：US20190166586A1

公开(公告)日：2019-05-30

申请号：US16198224

申请日：2018-11-21

Applicant: QUALCOMM Incorporated

Inventor： Aziz GHOLMIEH ,  Alexei Yurievitch GOROKHOV ,  Peter GAAL ,  Vishal MAHAJAN ,  Valentin GHEORGHIU ,  Hari SANKAR ,  Masato KITAZOE

IPC: H04W72/04 ,  H04L12/24 ,  H04B7/0413

Abstract: The disclosure relates to reduced signaling to carry out the linking between new radio (NR) carrier aggregation (CA) band combinations and NR band processing combinations (BPCs), and includes apparatus and methods of receiving, at a modem of a user equipment (UE), a UE configuration from a base station based on UE band combination constraint information, configuring the UE, by a processor of the UE, according to the UE configuration, and performing a communication with the base station, via the modem of the UE, according to the UE configuration. In an implementation, the disclosure includes transmitting the UE band combination constraint information, such as in the form of receiving a total number of layers supported in a CA band combination, and wherein receiving the UE configuration further comprises receiving a CA combination and a BPC configuration in response to the UE band combination constraint information.

公开(公告)号：US20190165982A1

公开(公告)日：2019-05-30

申请号：US16199958

申请日：2018-11-26

Applicant: QUALCOMM Incorporated

Inventor： Peter GAAL ,  Valentin GHEORGHIU ,  Timo Ville VINTOLA ,  Hung Dinh LY ,  Yang YANG ,  Jing JIANG ,  Heechoon LEE

IPC: H04L27/26 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive carrier information identifying at least one of: an initial absolute frequency for a carrier, a tone boundary offset value for the carrier, a number of resource blocks included in the carrier, or a frequency offset from a reference frequency; and determine a resource allocation of the carrier based at least in part on the carrier information and a subcarrier spacing of the user equipment. Numerous other aspects are provided.

公开(公告)号：US20190150185A1

公开(公告)日：2019-05-16

申请号：US16249628

申请日：2019-01-16

Applicant: QUALCOMM Incorporated

Inventor： Madhavan Srinivasan VAJAPEYAM ,  Aleksandar DAMNJANOVIC ,  Tao LUO ,  Wanshi CHEN ,  Peter GAAL

IPC: H04W72/14 ,  H04W74/00 ,  H04W72/12 ,  H04L1/18 ,  H04W74/04

CPC classification number: H04W72/14 ,  H04L1/1861 ,  H04W16/14 ,  H04W72/1268 ,  H04W74/004 ,  H04W74/04

Abstract: Techniques for uplink transmission management in a wireless communications system are described herein. An example method may include receiving an explicit uplink grant that indicates one or more implicit uplink grants. In an aspect, the example method may include performing a first clear channel assessment (CCA) in response to the explicit uplink grant in a first time slot. In another aspect, the example method may include, if the first CCA fails, sequentially performing one or more additional CCAs respectively in one or more time slots subsequent to the first time slot in response to the one or more implicit uplink grants, and transmitting the PDU over the unlicensed or shared spectrum and in a time slot subsequent to the time slot in which one of the one or more additional CCAs succeeds.

公开(公告)号：US20190149284A1

公开(公告)日：2019-05-16

申请号：US16246139

申请日：2019-01-11

Applicant: QUALCOMM Incorporated

Inventor： Alberto RICO ALVARINO ,  Kirankumar Bhoja ANCHAN ,  Shashidhar VUMMINTALA ,  Srinivasan BALASUBRAMANIAN ,  Hao XU ,  Parvathanathan SUBRAHMANYA ,  Seyed Ali Akbar FAKOORIAN ,  Peter GAAL ,  Gowrisankar SOMICHETTY

IPC: H04L5/00 ,  H04W72/14 ,  H04L29/06 ,  H04W72/12

Abstract: Aspects of the present disclosure relate to methods and apparatus for optimizing real time services (e.g., such as a voice over Long Term Evolution (LTE) (VoLTE)) for devices with limited communications resources, such as machine type communication (MTC) devices and enhanced MTC (eMTC) devices. In one aspect, a UE determines a first configuration of subframes within at least one radio frame available for the UE and other UEs to use for bundled communications with a BS. The UE receives an indication of one or more subframes within the at least one radio frame that are unavailable for bundled uplink transmissions, and determines a second configuration of subframes to use for bundled communications based on the indication. The UE overrides the first configuration of subframes with the second configuration of subframes, and communicates with the BS using the second configuration of subframes. Numerous other aspects are provided.

公开(公告)号：US20190110280A1

公开(公告)日：2019-04-11

申请号：US16215493

申请日：2018-12-10

Applicant: QUALCOMM Incorporated

Inventor： Sony AKKARAKARAN ,  Tao LUO ,  Wanshi CHEN ,  Hao XU ,  Peter GAAL ,  Yi HUANG ,  Renqiu WANG ,  Seyong PARK

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

Abstract: Aspects of the disclosure relate to wireless communication systems configured to provide techniques for strategically placing a sounding reference signal (SRS) within a slot to improve the decoding timeline. Aspects of the disclosure further relate to wireless communication systems configured to optimize the physical downlink control channel (PDCCH) search space within a slot to improve the decoding timeline. Features may also include placing the SRS near the end of the slot, such as after the uplink user data traffic and the corresponding uplink demodulation reference signal (DMRS). In addition, features may also include identifying the PDCCH search space within the slot based on at least a slot index of the slot. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US20190089436A1

公开(公告)日：2019-03-21

申请号：US16085498

申请日：2017-04-27

Applicant: QUALCOMM Incorporated

Inventor： Chao WEI ,  Wanshi CHEN ,  Peter GAAL

IPC: H04B7/06 ,  H04L5/00 ,  H04W72/04 ,  H04B7/0456

Abstract: Dynamic channel state information (CSI) reference signal (CSI-RS) activation/deactivation via layer 1 signaling is discussed. An eNB may configure multiple dynamic CSI-RS resource configurations for a given user equipment (UE). Multiple dynamic CSI-RS configurations may be associated with CSI processes, and also one or more dynamic CSI-RS resources may be associated with multiple CSI processes. Each dynamic CSI-RS resource configuration may include the number of ports, RE locations, and power ratio, as well as the subframe configuration, which may include periodicity and subframe offset. The eNB may dynamically trigger or release the different dynamic CSI-RS resources through layer 1 signaling. Additional aspects provide for ways to determine dynamic CSI-RS transmission instances, to enhance rate matching to support dynamic CSI-RS transmissions, and to report CSI for dynamic CSI-RS resources.

公开(公告)号：US20190059054A1

公开(公告)日：2019-02-21

申请号：US16104066

申请日：2018-08-16

Applicant: QUALCOMM Incorporated

Inventor： Heechoon LEE ,  Peter Pui Lok ANG ,  Tao LUO ,  Peter GAAL ,  Wanshi CHEN ,  Juan MONTOJO ,  Tingfang JI

IPC: H04W52/02 ,  H04W72/04 ,  H04L5/00

Abstract: Aspects of the disclosure relate to wireless communications utilizing discontinuous reception (DRX). Disclosed methods and apparatus include providing a grant indicator in a transmission from a base station to a user equipment (UE), where indicator notifies the UE of a grant of data during a subsequent discontinuous reception (DRX) cycle in the at least one UE. Additionally, a tracking reference signal (TRS), which may be aperiodic (A-TRS), is transmitted prior to an on-duration time of the DRX cycle, where the TRS is usable by the UE for updating a tracking loop and also can be referenced by the indicator. In this manner, the combination of the grant indicator and the TRS affords a UE sufficient time for updating a UE tracking loop before the DRX cycle. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US20190053091A1

公开(公告)日：2019-02-14

申请号：US16059991

申请日：2018-08-09

Applicant: Qualcomm Incorporated

Inventor： Timo Ville VINTOLA ,  Shrenik PATEL ,  Peter GAAL ,  Joseph Binamira SORIAGA

IPC: H04W28/02 ,  H04L5/00 ,  H04W28/06

Abstract: Methods, systems, and devices for wireless communication are described. Techniques to use capability information for user equipment in wide band systems such as millimeter wave systems. The capability information can include information indicative of support for limited non-contiguous intra-band carrier aggregation. The capability information can include information indicative of support for sharing time and frequency tracking information between cells.