公开(公告)号：US20190363773A1

公开(公告)日：2019-11-28

申请号：US16414568

申请日：2019-05-16

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Xiaoxia ZHANG ,  Seyed Ali Akbar FAKOORIAN ,  Jing SUN ,  Tamer KADOUS

IPC: H04B7/06 ,  H04W16/14 ,  H04B7/024

Abstract: Techniques and apparatus for reporting channel state information (CSI) for unlicensed coordinated multipoint (CoMP) operations are provided. One technique includes determining, based on one or more conditions, for each of a plurality of base stations available for a coordinated multipoint (CoMP) transmission, whether the base station has transmitted a channel state information reference signal (CSI-RS) in unlicensed spectrum. CSI feedback is reported based on the determination.

公开(公告)号：US20190320420A1

公开(公告)日：2019-10-17

申请号：US16381976

申请日：2019-04-11

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia ZHANG ,  Jing SUN ,  Tamer KADOUS

IPC: H04W72/04 ,  H04L29/08

Abstract: Aspects of the disclosure relate to a method and apparatus for receiving a joint transport block transmission. A user equipment (UE) receives a configuration message configuring the UE to receive a joint transport block (TB) transmission of data from a plurality of transmission points (TRPs). The UE determines a transport block size (TBS) for receiving the joint TB transmission, receives transport blocks corresponding to the joint TB transmission, each transport block from a respective one of the plurality of TRPs, combines the transport blocks when a size of each of the transport blocks is the determined TBS, and recovers the data based on the combined transport blocks. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US20190173611A1

公开(公告)日：2019-06-06

申请号：US16130877

申请日：2018-09-13

Applicant: QUALCOMM Incorporated

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

IPC: H04L1/00 ,  H04L5/00 ,  H04W72/04 ,  H04W4/70 ,  H04W16/14

Abstract: Some techniques and apparatuses described herein may be used to avoid or reduce collisions between uplink data communications and uplink control communications for an enhanced machine-type communication user equipment (eMTC UE) operating in an unlicensed radio frequency spectrum band. Furthermore, some techniques and apparatuses may avoid such collision while still allowing efficient use of resources, such as by deferring the uplink data communication within a data segment, rate matching an uplink data communication around uplink control resources (e.g., cell-specific uplink control resources and/or UE-specific uplink control resources), puncturing the uplink data communication to avoid the uplink control resources, multiplexing uplink control information on an uplink data channel, and/or the like.

公开(公告)号：US20190173521A1

公开(公告)日：2019-06-06

申请号：US16128154

申请日：2018-09-11

Applicant: QUALCOMM Incorporated

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

IPC: H04B1/7143 ,  H04L5/00 ,  H04B1/7136 ,  H04W16/14

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. In one example, the apparatus may be a base station. In certain configurations, the apparatus may transmit information indicating a narrowband frequency hopping pattern to at least one UE. In certain aspects, the narrowband frequency hopping pattern may correspond to a plurality of frames. In certain other aspects, the plurality of frames may include at least one non-anchor channel and being associated with a plurality of anchor channels. The apparatus may communicate with the at least one UE using the narrowband frequency hopping pattern. In certain aspects, communication on the plurality of anchor channels may occur during the same frames.

公开(公告)号：US20190090149A1

公开(公告)日：2019-03-21

申请号：US16005558

申请日：2018-06-11

Applicant: QUALCOMM Incorporated

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

IPC: H04W24/10 ,  H04L5/00 ,  H04W4/70 ,  H04W72/04

Abstract: Various features related to eMTC-U deployment are described. In an aspect of the disclosure, an apparatus (e.g., a base station) maybe configured to select a subset of non-anchor channels from a set of available non-anchor channels, where the subset of non-anchor channels may correspond to a bandwidth within an unlicensed band. The apparatus maybe further configured to transmit information indicating the subset of non-anchor channels via an anchor channel. In some configurations, the subset of non-anchor channels maybe selected based on channel measurements performed by the base station or a UE. In one aspect, a UE may receive, from a base station via an anchor channel, information indicating a subset of non-anchor channels selected from a set of available non-anchor channels. The UE may transmit data on one or more non-anchor channel of the subset of non-anchor channels.

公开(公告)号：US20190069325A1

公开(公告)日：2019-02-28

申请号：US16116855

申请日：2018-08-29

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Ozcan OZTURK ,  Peter GAAL ,  Tamer KADOUS ,  Yongbin WEI

IPC: H04W74/08 ,  H04W72/04 ,  H04W76/27 ,  H04W52/36

Abstract: Aspects presented herein provide for dual connectivity with a standalone service provider in the unlicensed spectrum. A first base station may receive, from a UE, an indication of a capability for standalone operation in a first RAT that utilizes an unlicensed frequency spectrum and a dual connectivity capability involving the first RAT and a second RAT that utilizes a licensed frequency spectrum, wherein dual connectivity comprises the UE being connected to a master base station on a first frequency and a secondary base station on a second frequency at a same time. The first base station may signal a first set of procedures for dual connectivity when the level of support at the first base station is at higher layers of the first RAT and may signal a second set of procedures when the level of support at the first base station extends to lower layers of the first RAT.

公开(公告)号：US20190028999A1

公开(公告)日：2019-01-24

申请号：US16043023

申请日：2018-07-23

Applicant: QUALCOMM Incorporated

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

IPC: H04W68/02 ,  H04W52/02

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for monitoring paging occasions. In one example, a mobile communication device defines a paging frame window (PFW) for a duration of time on a hop frequency or narrow band of frequencies indicated by a paging formula, and periodically wakes up to monitor the PFW for a page message. In another example, the mobile device receives a frame structure information at the start of a frame.

公开(公告)号：US20190020527A1

公开(公告)日：2019-01-17

申请号：US16030319

申请日：2018-07-09

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Jing SUN ,  Tamer KADOUS

IPC: H04L27/36 ,  H04L27/38

CPC classification number: H04L27/361 ,  H04B7/0408 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/10 ,  H04J3/02 ,  H04J14/06 ,  H04L5/001 ,  H04L5/005 ,  H04L27/2636 ,  H04L27/3488 ,  H04L27/362 ,  H04L27/38 ,  H04W16/28 ,  H04W72/046

Abstract: Certain aspects of the present disclosure generally relate to wireless communication. More particularly, aspects of the present disclosure provide multiplexing schemes which may be suited for the single carrier waveform. For example, some techniques and apparatuses described herein permit multiplexing of multiple, different data streams without destroying the single-carrier properties of the waveform. Additionally, or alternatively, some techniques and apparatuses described herein may provide unequal error protection, unequal bandwidth allocation, and/or the like as part of the multiplexing schemes. Examples of multiplexing schemes described herein include in-phase/quadrature (I/Q) multiplexing, superposition quadrature amplitude modulation (QAM) based at least in part on layered bit mapping, polarization division multiplexing of QAM with superposition coding, and frequency division multiplexing using UE-specific beams.

公开(公告)号：US20190020424A1

公开(公告)日：2019-01-17

申请号：US16001155

申请日：2018-06-06

Applicant: QUALCOMM Incorporated

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

IPC: H04B17/309 ,  H04W24/08 ,  H04W16/14 ,  H04B1/713

Abstract: The extension of NB-IoT and eMTC communications into the unlicensed spectrum introduces a number of problems associated with channel quality measurement and reporting. A method, apparatus, and computer readable medium are presented that provide a technique for channel quality measurement and reporting that addressed such problems. A UE apparatus measures a CQI measurement for each of a plurality of groups of hopping frequencies, wherein a set of hopping frequencies is grouped into the plurality of groups and reports a CQI for each of the plurality of groups. A base station may configure the UE for CQI reporting and may receive a CQI for each of a plurality of groups of hopping frequencies, wherein a set of hopping frequencies is grouped into the plurality of groups. The set of hopping frequencies comprise frequencies in an unlicensed spectrum.

公开(公告)号：US20180367362A1

公开(公告)日：2018-12-20

申请号：US16003456

申请日：2018-06-08

Applicant: QUALCOMM Incorporated

Inventor： Jing SUN ,  Tamer KADOUS ,  Tao LUO ,  Xiao Feng WANG ,  Jing LEI

IPC: H04L27/34 ,  H04L27/26 ,  H04J1/00

Abstract: In order to maintain flexible system bandwidth and a flexible center frequency, without requiring a cyclic prefix or guard interval, a transmitter apparatus transmits a reference signal based on a single carrier waveform having a mixed symbol structure, in reference signal symbols using at least one of a cyclic prefix and a guard interval and transmits data based on the single carrier waveform without the cyclic prefix or the guard interval. The data may be based on input data processed using overlapping FFT windows, and an amount of overlap between the FFT windows may be configurable by the transmitter or the receiver. An apparatus receiving the downlink transmission comprising data based on a single carrier waveform may process the data based on overlapping FFT windows.