公开(公告)号：US20190037427A1

公开(公告)日：2019-01-31

申请号：US16046868

申请日：2018-07-26

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Chih-Hao LIU ,  Tamer KADOUS

IPC: H04W24/10 ,  H04W72/04 ,  H04B1/713

Abstract: Methods, systems, and devices for wireless communication are described. A base station may transmit a configuration for cell measurement associated with a frequency hopping system. The base station may then receive a measurement report based on the configuration. A UE may receive a configuration for cell measurement associated with a frequency hopping system. The UE may generate a measurement report based on the configuration. The UE may then transmit the measurement report to a serving base station.

公开(公告)号：US20190020461A1

公开(公告)日：2019-01-17

申请号：US15991829

申请日：2018-05-29

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Chih-Hao LIU ,  Tamer KADOUS

IPC: H04L5/14 ,  H04L1/00 ,  H04L5/00

Abstract: A method, an apparatus, and a computer program for wireless communication that allows for greater scheduling flexibility of physical resources are disclosed. A UE receives information from a base station about a time division duplex (TDD) frame structure of a plurality of frames that include a plurality of subframes. The UE determines a control channel search space within the plurality of subframes based on the information. The UE determines a search strategy including a maximum aggregation level based on the control channel search space. The UE performs a blind decoding of the control channel search space with the search strategy to obtain control information. The control channel search space may include a size and a location of a subset of the DL subframes allowed to carry the control information. The UE may determine a plurality of UL subframes assigned for transmitting scheduled UL resources associated with a UL control signaling.

公开(公告)号：US20180287870A1

公开(公告)日：2018-10-04

申请号：US15847737

申请日：2017-12-19

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Chih-Hao LIU ,  Tamer KADOUS

IPC: H04L12/24 ,  H04W72/04

Abstract: In order to conserve power resources for low complexity UEs, a base station may apparatus dynamically adjust a bandwidth configuration of a UE or the base station and communicates with the UE according to the dynamically adjusted bandwidth configuration. The communication may be narrowband communication. A UE may apparatus dynamically adjust a bandwidth configuration of the UE and communicates with a base station based on the dynamically adjusted bandwidth configuration. The dynamically adjusted bandwidth configuration may correspond to a function performed by the UE.

公开(公告)号：US20180227797A1

公开(公告)日：2018-08-09

申请号：US15886400

申请日：2018-02-01

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao LIU ,  Srinivas YERRAMALLI ,  Arumugam CHENDAMARAI KANNAN ,  Tamer Adel KADOUS ,  Ahmed Kamel SADEK

IPC: H04W28/06 ,  H04L5/00 ,  H04W72/04 ,  H04W74/08 ,  H04W48/16

Abstract: In an embodiment, an access point executes a Clear Channel Assessment (CCA) protocol to determine whether to begin transmission within a DRS Measurement Timing Configuration (DMTC) window. The access point transmits, based on a result of the execution, a multi-subframe DRS within the DMTC window, the multi-subframe DRS including a plurality of DRS subframes that each includes a plurality of symbols.

公开(公告)号：US20180139618A1

公开(公告)日：2018-05-17

申请号：US15812810

申请日：2017-11-14

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Tamer KADOUS ,  Chirag Sureshbhai PATEL ,  Chih-Hao LIU ,  Alberto RICO ALVARINO

IPC: H04W16/14 ,  H04L5/00 ,  H04W72/04 ,  H04W72/12

CPC classification number: H04W16/14 ,  H04B1/713 ,  H04J2011/0016 ,  H04L1/1671 ,  H04L1/1812 ,  H04L1/1896 ,  H04L5/001 ,  H04L5/0048 ,  H04L5/0055 ,  H04L5/0057 ,  H04L27/0006 ,  H04L27/2602 ,  H04W72/042 ,  H04W72/1215 ,  H04W72/14 ,  H04W74/0808

Abstract: Certain aspects of the present disclosure provide techniques for transmitting and receiving self-contained transmissions for enhanced machine type communications (eMTC) in unlicensed spectrum (eMTC-U). An exemplary method includes a BS determining, based on a listen before talk (LBT) procedure, that a first portion of unlicensed radio frequency spectrum is available for a frame, transmitting, on the first portion of the unlicensed radio frequency spectrum, a control channel indicating a frame format of the frame or a grant of the first portion of the unlicensed radio frequency spectrum for the frame, and communicating with a user equipment (UE) according to the frame format or the grant during the frame.

公开(公告)号：US20170332440A1

公开(公告)日：2017-11-16

申请号：US15589989

申请日：2017-05-08

Applicant: QUALCOMM Incorporated

Inventor： Hao XU ,  Srinivas YERRAMALLI ,  Juan MONTOJO ,  Yongbin WEI ,  Peter GAAL ,  Wanshi CHEN ,  Alberto RICO ALVARINO

IPC: H04W84/18 ,  H04W84/10 ,  H04W28/02 ,  H04W16/16 ,  H04W4/00 ,  H04W92/18 ,  H04L29/08

CPC classification number: H04W84/18 ,  H04B1/713 ,  H04L1/0071 ,  H04L5/001 ,  H04L29/08306 ,  H04L67/104 ,  H04W4/70 ,  H04W16/16 ,  H04W28/021 ,  H04W84/10 ,  H04W92/18

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for wireless communication, and more particularly, to design principles for extending Internet of Things (IoT) (e.g., narrowband IoT (NB-IoT), machine type communication(s) (MTC), etc.) into an unlicensed radio frequency (RF) band spectrum. In certain aspects, the method generally includes determining an interlace structure of tones, within an unlicensed radio frequency (RF) spectrum, available to a wireless node for communication, and communicating based on the interlace structure. In some aspects, the communicating involves hopping between tones within the interlace structure during different communication intervals.

公开(公告)号：US20170134148A1

公开(公告)日：2017-05-11

申请号：US15270720

申请日：2016-09-20

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Peter GAAL ,  Tao LUO ,  Wanshi CHEN

IPC: H04L5/00 ,  H04W48/16 ,  H04W72/04

CPC classification number: H04L5/0094 ,  H04W16/14 ,  H04W48/16 ,  H04W72/042

Abstract: The disclosure provides for receiving a downlink transmission for wireless communications. A user equipment (UE) may receive, on a primary component carrier, an indication that a subframe of a secondary component carrier includes a discovery reference signal. During the subframe, the UE may receive, on the secondary component carrier over an unlicensed spectrum, a transmission including the discovery reference signal. The UE may rate match the transmission based on the indication. The disclosure further provides for discovering timing information during wireless communications. The UE may receive on a primary component carrier, an indication that a set of subframes of a carrier of a neighboring cell includes a discovery reference signal. The UE may determine a subframe to receive the discovery reference signal based on the indication. The UE may receive during the subframe, the discovery reference signal from the neighboring cell in an unlicensed spectrum.