公开(公告)号：US20180191460A1

公开(公告)日：2018-07-05

申请号：US15909685

申请日：2018-03-01

Applicant: QUALCOMM Incorporated

Inventor： Wanshi CHEN ,  Juan MONTOJO ,  Jelena DAMNJANOVIC

IPC: H04L1/00 ,  H04L5/00

CPC classification number: H04L1/0027 ,  H04L1/0026 ,  H04L1/0028 ,  H04L5/001 ,  H04L5/0035 ,  H04L5/0055 ,  H04L5/0057 ,  H04L5/0083 ,  H04W72/00

Abstract: Techniques for reporting channel state information (CSI) for multiple cells (e.g., carriers) using multiple control channel formats are disclosed. A user equipment (UE) may be configured for operation on a plurality of cells. The UE may be configured to periodically report CSI for the plurality of cells and may also report CSI whenever requested. The UE may be configured with a plurality of control channel formats for sending CSI and possibly other control information in different subframes. The plurality of control channel formats may be associated with at least two different capacities. The UE may report CSI for the plurality of cells in the plurality of subframes based on the plurality of control channel formats.

公开(公告)号：US20180167183A1

公开(公告)日：2018-06-14

申请号：US15621257

申请日：2017-06-13

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia ZHANG ,  Taesang YOO ,  Juan MONTOJO ,  Zhifei FAN ,  Renqiu WANG ,  Yi HUANG

IPC: H04L5/00 ,  H04J11/00 ,  H04L1/16 ,  H04W72/04

Abstract: Aspects of the present disclosure describe receiving an indication of a covariance matrix from an access point, receiving downlink signaling from the access point, deriving, based at least in part on the covariance matrix or the downlink signaling, one or more precoders for uplink communications over an uplink channel, and indicating, based at least in part on the one or more precoders, uplink channel feedback to the access point.

公开(公告)号：US20180152905A1

公开(公告)日：2018-05-31

申请号：US15824753

申请日：2017-11-28

Applicant: QUALCOMM INCORPORATED

Inventor： Sridhar RAMANUJAM ,  Xiaoxia ZHANG ,  Tao LUO ,  Juan MONTOJO

IPC: H04W56/00

CPC classification number: H04W56/0005 ,  H04L27/2602 ,  H04L27/2613

Abstract: The present disclosure provides an example method and an apparatus for transmitting synchronization signals from an eNB with a different subcarrier spacing from rest of transmissions. That is, a primary synchronization signal (PSS), a secondary synchronization signal (SSS) may be transmitted using a first subcarrier spacing, a physical broadcast channel (PBCH), and/or a reference signal (RS) may be transmitted with a second subcarrier spacing, and other transmissions may be made using a third subcarrier spacing that is different from at least one of the first or second subcarrier spacing. Further, the order of symbols mapped to the synchronization signals may be reversed or otherwise modified within a transmission subframe.

公开(公告)号：US20180132140A1

公开(公告)日：2018-05-10

申请号：US15596692

申请日：2017-05-16

Applicant: QUALCOMM Incorporated

Inventor： Taesang YOO ,  Xiaoxia ZHANG ,  Siddhartha MALLIK ,  Juan MONTOJO ,  Aleksandar DAMNJANOVIC

IPC: H04W28/26 ,  H04W16/14 ,  H04W72/10 ,  H04W72/04 ,  H04W52/34

CPC classification number: H04W28/26 ,  H04L67/303 ,  H04W16/14 ,  H04W52/346 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/10 ,  H04W74/0816

Abstract: Methods and apparatuses for wireless communications are described. The aspects relate to a frame structure for new radio shared spectrum. For instance, the frame structure may provide shared medium access by multiple operators in a new radio shared spectrum system. Specifically, the present aspects provide for utilizing reservation preambles associated with a distinct operator for announcing to other operators a reservation of at least one transmission opportunity of a given frame in the new radio shared spectrum.

公开(公告)号：US20180115907A1

公开(公告)日：2018-04-26

申请号：US15672649

申请日：2017-08-09

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar DAMNJANOVIC ,  Juan MONTOJO ,  Yisheng XUE ,  Michael Mingxi FAN ,  Xiaoxia ZHANG ,  Taesang YOO

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

CPC classification number: H04W16/14 ,  H04W56/001 ,  H04W72/0453 ,  H04W72/1215 ,  H04W74/0816 ,  H04W88/06 ,  H04W88/10

Abstract: Techniques for spectrum sharing among operators are provided. A base station (BS) licensed to a first operator monitors, while operating on a first carrier frequency assigned to the first operator, a reservation period on a second carrier frequency assigned to a second operator that shares spectrum with the first operator. The BS determines, based on the monitoring, availability of the second carrier frequency for use by the BS during at least one subsequent data period. The BS determines whether to attempt to reserve access on the second carrier frequency for use during the at least one subsequent data period based on the determined availability.

公开(公告)号：US20180070242A1

公开(公告)日：2018-03-08

申请号：US15623102

申请日：2017-06-14

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar DAMNJANOVIC ,  Juan MONTOJO ,  Siddhartha MALLIK

IPC: H04W16/14 ,  H04W76/02

Abstract: Certain aspects of the present disclosure provide techniques for protecting overhead and common channel transmissions in a NR shared spectrum system. A BS of a first operator may receive information regarding at least one overhead transmission associated with a wireless device of a second operator and may protect one or more overhead signal transmissions of the wireless device based, at least in part, on the received information. A UE may detect information associated with at least one overhead transmission from a wireless device associated with a first operator and may transmit the information regarding the detected overhead transmission to a BS associated with a second operator. A UE served by a BS associated with a first operator may detect a wireless device (e.g., another UE or a BS) associated with a second operator. The UE may report an identification of the wireless device to the BS.

公开(公告)号：US20180020360A1

公开(公告)日：2018-01-18

申请号：US15610869

申请日：2017-06-01

Applicant: QUALCOMM Incorporated

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

IPC: H04W16/14 ,  H04B1/713 ,  H04W56/00 ,  H04B1/7156

CPC classification number: H04W72/0453 ,  H04B1/713 ,  H04B1/7143 ,  H04B1/7156 ,  H04B1/7183 ,  H04B2001/71563 ,  H04L5/001 ,  H04L5/0012 ,  H04L5/0048 ,  H04L5/0098 ,  H04L27/0006 ,  H04L27/2634 ,  H04L27/2655 ,  H04L67/12 ,  H04W16/14 ,  H04W52/143 ,  H04W52/146 ,  H04W52/346 ,  H04W56/00 ,  H04W56/0005 ,  H04W56/0015 ,  H04W72/042 ,  H04W72/0473 ,  H04W74/006 ,  H04W74/085 ,  H04W76/27 ,  H04W76/28 ,  H04W88/08

Abstract: Various aspects of utilizing narrowband internet of things (NB IOT) communication are still under development. According to an aspect of the disclosure, the apparatus may be a user equipment (UE) for wireless communication via narrowband internet of things (NB IOT) in an unlicensed spectrum using frequency hopping and digital modulation. The UE performs a synchronization with a base station via at least one of a licensed spectrum or the unlicensed spectrum. The UE communicates with the base station based on the synchronization.

公开(公告)号：US20170264408A1

公开(公告)日：2017-09-14

申请号：US15410057

申请日：2017-01-19

Applicant: QUALCOMM Incorporated

Inventor： Shimman PATEL ,  Wanshi CHEN ,  Juan MONTOJO ,  Peter GAAL ,  Seyedkianoush HOSSEINI ,  Aleksandar DAMNJANOVIC ,  Hao XU

IPC: H04L5/00 ,  H04W72/04 ,  H04B7/0413

CPC classification number: H04L5/0048 ,  H04B7/0413 ,  H04L5/0037 ,  H04L5/0051 ,  H04L5/0053 ,  H04W72/0446

Abstract: The present methods and apparatus enable transmission of an interlaced reference signal for two UEs using a comb structure. In some aspects, the present methods and apparatus may allocate resources and indicate whether a first UE and a second UE are to transmit DM-RS with a comb structure in a single slot based on the allocation. Further, in some aspects, the present methods and apparatus may allocate resources and transmit information indicating whether a first UE is to transmit DM-RS in a first slot or in both a first slot and a second slot within a subframe.

公开(公告)号：US20170135052A1

公开(公告)日：2017-05-11

申请号：US15245498

申请日：2016-08-24

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Hao XU ,  Peter GAAL ,  Xiaofeng WANG ,  Wanshi CHEN ,  Yongbin WEI ,  Juan MONTOJO ,  Alberto RICO ALVARINO

IPC: H04W56/00 ,  H04W16/32 ,  H04J13/00

CPC classification number: H04W56/001 ,  H04J13/0062 ,  H04L5/0007 ,  H04L5/0048 ,  H04L27/2613 ,  H04L27/2659 ,  H04L27/266 ,  H04W16/32 ,  H04W88/08 ,  H04W88/12

Abstract: Aspects of the present disclosure provide techniques for design of synchronization signals for narrowband operation and other clean-slate, OFDM based systems such as enhanced component carrier (eCC) systems. An example method is provided for operations which may be performed by a BS to generate and transmit a dual-layer PSS, and correspondingly, techniques for a UE to detect the dual-layer PSS. The PSS may be generated utilizing a binary code cover and at least one sequence applied to a number of symbols within one or more subframes of a frame.

公开(公告)号：US20150382346A1

公开(公告)日：2015-12-31

申请号：US14835083

申请日：2015-08-25

Applicant: QUALCOMM Incorporated

Inventor： Aamod D. KHANDEKAR ,  Ravi PALANKI ,  Peter GAAL ,  Tingfang JI ,  Naga BHUSHAN ,  Juan MONTOJO

IPC: H04W72/04 ,  H04W72/08

CPC classification number: H04W72/0446 ,  H04L1/0001 ,  H04L1/0026 ,  H04L1/0027 ,  H04L5/0007 ,  H04L5/1469 ,  H04L5/16 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/082

Abstract: Techniques for supporting communication in an asynchronous TDD wireless network are described. In an aspect, downlink transmissions and uplink transmissions may be sent on different carriers in an asynchronous TDD wireless network to mitigate interference. In one design, a station (e.g., a base station or a UE) may send a first transmission on a first carrier in a first time period and may receive a second transmission on a second carrier in a second time period. The station may only transmit, or only receive, or neither in each time period. In one design, allocation of carriers for the downlink and uplink may be performed when strong interference is detected, e.g., by a base station or a UE. When strong interference is not detected, the first and second carriers may each be used for both the downlink and uplink.

Abstract translation: 描述了用于支持异步TDD无线网络中的通信的技术。 在一方面，下行链路传输和上行链路传输可以在异步TDD无线网络中的不同载波上发送以减轻干扰。 在一种设计中，站（例如，基站或UE）可以在第一时间段内在第一载波上发送第一传输，并且可以在第二时间段内在第二载波上接收第二传输。 车站只能在每个时段内传送，也可以只接收。 在一种设计中，例如由基站或UE检测到强干扰时，可以执行用于下行链路和上行链路的载波的分配。 当没有检测到强干扰时，第一和第二载波可以分别用于下行链路和上行链路。