公开(公告)号：US20180254796A1

公开(公告)日：2018-09-06

申请号：US15910449

申请日：2018-03-02

Applicant: QUALCOMM Incorporated

Inventor： Sony AKKARAKARAN ,  Tao LUO ,  Xiao Feng WANG ,  Makesh Pravin JOHN WILSON

IPC: H04B1/7075 ,  H04B7/26 ,  H04B7/208 ,  H04B7/212

CPC classification number: H04B1/7075 ,  H04B7/208 ,  H04B7/2125 ,  H04B7/2656 ,  H04B17/24 ,  H04B17/309 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0053 ,  H04W52/143 ,  H04W52/16 ,  H04W52/247 ,  H04W52/327 ,  H04W52/42

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for data transmission in synchronization slots. A method for use by a base station for data transmission in synchronization slots includes transmitting a synchronization signal (SS) burst, wherein different SS blocks of the burst are transmitted using different transmit beams and performing frequency division multiplexing (FDM) or time division multiplexing (TDM) to include one or more other types of signals that need to be multicast and are also transmitted using the different transmit beams.

公开(公告)号：US20180241605A1

公开(公告)日：2018-08-23

申请号：US15802398

申请日：2017-11-02

Applicant: QUALCOMM Incorporated

Inventor： Tao LUO

IPC: H04L27/26 ,  H04W72/04 ,  H04L5/00 ,  H04W56/00 ,  H04W76/02

Abstract: Based on at least a portion of an SS block index, a UE may scramble information and a base station may descramble the scrambled information. Specifically, a UE may determine an SS block index associated with an SS block for reception. The UE may scramble information based on at least a portion of the determined SS block index. The information may include at least one of data, control information, or a CRC associated with control information. The UE may transmit the scrambled information to a base station. A base station may receive, from the UE, information scrambled based on at least a portion of an SS block index. The scrambled information may include at least one of data or control information. The base station may descramble the scrambled information based on the at least the portion of the SS block index.

公开(公告)号：US20180234197A1

公开(公告)日：2018-08-16

申请号：US15869548

申请日：2018-01-12

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin JOHN WILSON ,  Tao LUO ,  Heechoon LEE

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

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may determine a signal configuration for transmitting a tracking reference signal (TRS) to a user equipment (UE). The signal configuration may identify a subset of locations, of a set of locations included in a transmission window, that is to be used to transmit the TRS, and the signal configuration may be selected to assist the UE with one or more measurements. The apparatus may transmit, based at least in part on the signal configuration, the TRS in the subset of locations. Numerous other aspects are provided.

公开(公告)号：US20180213477A1

公开(公告)日：2018-07-26

申请号：US15713536

申请日：2017-09-22

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin JOHN WILSON ,  Tao LUO ,  Taesang YOO ,  Xiaoxia ZHANG ,  Heechoon LEE ,  June NAMGOONG ,  Bilal SADIQ ,  Wenjun LI

IPC: H04W52/02

CPC classification number: H04W72/1289 ,  H04L1/0013 ,  H04L1/0046 ,  H04L5/0053 ,  H04L5/0092 ,  H04W28/22 ,  H04W52/0216 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/1273

Abstract: A control resource region of an New Radio system slot structure may be separated into control resource sets, only some of which may be used for control transmissions. Aspects presented herein improve the efficient utilization of resources by enabling data transmission in resources of the DL control resource region and/or the UL control resource region. A UE receives an indication of a control resource set in a control resource region of a slot that may provide a control channel resource or a data channel resource and performs rate matching for data transmissions in the data channel based at least in part on the indication. The indication may be a semi-static indication, e.g., RRC signaling, of the control resource set.

公开(公告)号：US20180206200A1

公开(公告)日：2018-07-19

申请号：US15918196

申请日：2018-03-12

Applicant: QUALCOMM Incorporated

Inventor： Peter GAAL ,  Wanshi CHEN ,  Tao LUO

IPC: H04W56/00 ,  H04J11/00

CPC classification number: H04W56/00 ,  H04J11/0069

Abstract: Certain aspects of the present disclosure relate to synchronization channel design for a new carrier type. In certain aspects, a User Equipment (UE) may first search for legacy locations of PSS (Primary Synchronization Signal) and SSS (Secondary Synchronization Signal), and attach to a cell that transmits the legacy PSS/SSS. Then the UE may be provided with information indicating a search space for PSS and SSS of a new carrier. The UE may then search for the PSS and SSS for the new carrier based on the received information. The relative spacings in time between the PSS and SSS for the first carrier may be different from the relative spacings in time between the PSS and SSS for the second carrier. In alternative aspects, the UE may receive a frequency offset value and determine PSS/SSS locations for the new carrier based on the frequency offset value and spaced center frequencies.

公开(公告)号：US20180199350A1

公开(公告)日：2018-07-12

申请号：US15710248

申请日：2017-09-20

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin JOHN WILSON ,  Tao LUO ,  Sony AKKARAKARAN ,  Wooseok NAM ,  Sumeeth NAGARAJA ,  Yang YANG

IPC: H04W72/08 ,  H04L5/00

Abstract: Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to methods and apparatus for code rate selection for control channels. An exemplary method generally includes selecting, from a set of code rates, a code rate to be used to encode a stream of bits using a polar code, based on at least one of a downlink control channel aggregation size, an uplink control channel assignment, or a payload size of the stream of bits, encoding the stream of bits using the polar code and the selected code rate, and transmitting the encoded stream of bits.

公开(公告)号：US20180198664A1

公开(公告)日：2018-07-12

申请号：US15713063

申请日：2017-09-22

Applicant: QUALCOMM Incorporated

Inventor： Heechoon LEE ,  Tao LUO ,  Xiaoxia ZHANG ,  Hung LY

IPC: H04L27/26 ,  H04W56/00

CPC classification number: H04L27/2657 ,  H04B7/0695 ,  H04L5/0026 ,  H04L5/003 ,  H04L5/005 ,  H04L25/03866 ,  H04L27/2655 ,  H04W24/02 ,  H04W56/0005 ,  H04W56/0015

Abstract: Aspects of the present disclosure describe receiving synchronization signals in wireless communications. A block of synchronization signals can be received from a base station in a first time interval. A beam identifier and a redundancy version associated with the block of synchronization signals can be determined. A broadcast channel can be received based at least in part on a timing associated with the beam identifier. The broadcast channel can be descrambled based at least in part on a scrambling code associated with the redundancy version

公开(公告)号：US20180139787A1

公开(公告)日：2018-05-17

申请号：US15707520

申请日：2017-09-18

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul ISLAM ,  Junyi LI ,  Juergen CEZANNE ,  Tao LUO ,  Sundar SUBRAMANIAN

IPC: H04W74/08 ,  H04B7/06 ,  H04W48/16

CPC classification number: H04W74/0891 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0695 ,  H04L5/0048 ,  H04L5/0053 ,  H04W48/16 ,  H04W72/046 ,  H04W74/0833

Abstract: Certain aspects of the present disclosure provide techniques for random-access channel (RACH) communication. For example, certain aspects provide a method for wireless communication. The method generally includes transmitting a plurality of reference signals using one or more beams, and receiving at least one of a RACH preamble and or a RACH payload corresponding to one or more of the reference signals transmitted via at least one of the one or more beams.

公开(公告)号：US20180124765A1

公开(公告)日：2018-05-03

申请号：US15641918

申请日：2017-07-05

Applicant: QUALCOMM Incorporated

Inventor： Tao LUO ,  Jing SUN

IPC: H04W72/04 ,  H04B7/0413 ,  H04B7/06 ,  H04L12/24

Abstract: Aspects of the present disclosure provide techniques for informing devices of the use of transmit and receive beams in a beamforming communication system. An exemplary method includes determining a plurality of beam directions for a device to use in different transmission time intervals (TTIs) of a TTI burst, and sending a directional transmission to the device indicating at least one of the beam directions.

公开(公告)号：US20180103492A1

公开(公告)日：2018-04-12

申请号：US15708415

申请日：2017-09-19

Applicant: QUALCOMM Incorporated

Inventor： Sony AKKARAKARAN ,  Tao LUO ,  Sumeeth NAGARAJA ,  Makesh Pravin JOHN WILSON

IPC: H04W74/08 ,  H04L5/14 ,  H04W76/04 ,  H04W24/10 ,  H04L5/00 ,  H04W72/04 ,  H04W56/00 ,  H04L27/26

CPC classification number: H04W74/0833 ,  H04B7/0695 ,  H04B7/088 ,  H04L5/0048 ,  H04L5/14 ,  H04L27/2608 ,  H04W24/10 ,  H04W56/001 ,  H04W72/00 ,  H04W72/046 ,  H04W76/27 ,  H04W88/02

Abstract: Certain aspects of the present disclosure provide techniques for beam correspondence indication, user equipment (UE) calibration indication, and synchronization information for time division duplexed (TDD) random access channel (RACH) procedure. According to certain aspects, a method of wireless communication by a wireless device is provided. The method generally includes determining whether beam correspondence applies between the wireless device and another wireless device and based on the determination, providing an indication to the other wireless device of whether beam correspondence applies.