公开(公告)号：US20190110319A1

公开(公告)日：2019-04-11

申请号：US16144462

申请日：2018-09-27

Applicant: QUALCOMM Incorporated

Inventor： Yeliz TOKGOZ ,  Tingfang JI ,  Gavin Bernard HORN

IPC: H04W74/08 ,  H04L5/00 ,  H04B7/0408 ,  H04W72/04

Abstract: Certain aspects of the present disclosure provide techniques for ordering a plurality of potential base stations to serve a user equipment on a supplemental uplink and providing random access channel (RACH) configuration parameters for each of the plurality of potential base stations to the user equipment. Certain aspects provide a method for wireless communication. The method generally includes communicating, by a user equipment (UE), with a first base station (BS) on a downlink on a first frequency band. The method further includes receiving, by the UE from the first BS, a list comprising RACH configuration parameters for each of a plurality of BSs. The method further includes selecting a second BS from the plurality of BSs based on an ordering of the plurality of BSs in the list and performing a RACH procedure with the second BS.

公开(公告)号：US20190036751A1

公开(公告)日：2019-01-31

申请号：US15952596

申请日：2018-04-13

Applicant: QUALCOMM Incorporated

Inventor： Seyong PARK ,  Wei ZENG ,  Joseph Binamira SORIAGA ,  Tingfang JI

IPC: H04L27/26

Abstract: Aspects of the present disclosure provide systems, methods, and apparatuses for implementing the multiplexing of different orthogonal frequency-division multiplexing (OFDM) waveforms using a transmitter and receiver configured to process different types of signals without a need for distinct hardware structures. In one example, aspects of the present disclosure may include a transmitter configured to transmit both a first type of discrete fourier transform (DFT)-spread OFDM waveform and a second type of DFT-spread OFDM waveform that may be multiplexed over the wireless channel. In some aspects, the transmitter may modify the numerology of the zero-tail DFT-spread OFDM waveform to match the numerology of other OFDM waveforms (e.g., OFDM waveform with zero-guard or a single carrier DFT-spread OFDM with zero-guard).

公开(公告)号：US20180376476A1

公开(公告)日：2018-12-27

申请号：US16015708

申请日：2018-06-22

Applicant: QUALCOMM Incorporated

Inventor： Heechoon LEE ,  Wanshi CHEN ,  Peter GAAL ,  Tingfang JI

IPC: H04W72/04

Abstract: The present application relates to slot format indicator signaling in wireless communication systems. For example, a network entity may configure a slot format to include one or more symbol partitions and a transmission assignment for each of the one or more symbol partitions, and communicate with to at least one UE according to the configured slot format. In another example, a UE may configure at least one slot format according to at least one of a semi-static configuration via a broadcast or unicast transmission, or a dynamic configuration via a group common physical downlink control channel (GC-PDCCH), and communicate with the network entity according to the slot format.

公开(公告)号：US20180368114A1

公开(公告)日：2018-12-20

申请号：US16003753

申请日：2018-06-08

Applicant: QUALCOMM Incorporated

Inventor： Wanshi CHEN ,  Heechoon LEE ,  Tingfang JI ,  Peter GAAL

IPC: H04W72/04 ,  H04L5/00 ,  H04W24/08 ,  H04W24/10

CPC classification number: H04W72/042 ,  H04L5/001 ,  H04L5/0053 ,  H04W24/08 ,  H04W24/10 ,  H04W72/0413 ,  H04W72/0446

Abstract: A method and apparatus for downlink and uplink control management of component carriers during carrier aggregation in a new radio wireless communication system is disclosed. For example, the method and apparatus include receiving, at a user equipment (UE), a slot format indicator in at least one slot of at least one component carrier of a plurality of component carriers from a network entity, where the at least one component carrier includes a group common Physical Downlink Control Channel (PDCCH), the slot format indicator within the group common PDCCH indicating at least slot structure information for one or more other component carriers from the plurality of component carriers; and communicating, with the network entity, using the at least slot structure information for the one more other component carriers.

公开(公告)号：US20180367272A1

公开(公告)日：2018-12-20

申请号：US16010001

申请日：2018-06-15

Applicant: QUALCOMM Incorporated

Inventor： Renqiu WANG ,  Yi HUANG ,  Hao XU ,  Tingfang JI ,  Seyong PARK

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

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for short uplink burst designs. In some cases, one sequence, from a plurality of sequences, may be transmitted in multiple tones of at least one short burst symbol conveying at least one bit of information. The plurality of sequences may have the same values at a first set of common tone locations for demodulation reference signals (DMRS) and groups of sequences from the plurality of sequences may be identified, each sequence in a group having a second set of common tone locations for DMRS.

公开(公告)号：US20180352533A1

公开(公告)日：2018-12-06

申请号：US16044453

申请日：2018-07-24

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul ISLAM ,  Sundar SUBRAMANIAN ,  Tingfang JI ,  Yu ZHANG ,  Navid ABEDINI ,  Bilal SADIQ ,  Ashwin SAMPATH

IPC: H04W64/00 ,  H04B7/06 ,  H04L5/00 ,  H04B7/024

CPC classification number: H04W64/006 ,  H04B7/024 ,  H04B7/0617 ,  H04B7/063 ,  H04L5/0035 ,  H04L5/0091 ,  H04W72/0413 ,  H04W72/042 ,  H04W88/02 ,  H04W88/08

Abstract: Antenna ports on wireless devices may be QCL. QCL antenna ports may be useful in improving channel statistics related to the antenna ports. UEs and base stations may be able to determine candidate QCL ports, transmit information identifying the candidate QCL ports, and receive feedback indicating whether the candidate QCL ports are QCL at the receiving device such as a UE or a base station.

公开(公告)号：US20180352527A1

公开(公告)日：2018-12-06

申请号：US15994942

申请日：2018-05-31

Applicant: QUALCOMM Incorporated

Inventor： Renqiu WANG ,  Wanshi CHEN ,  Amir AMINZADEH GOHARI ,  Joseph Binamira SORIAGA ,  Alexei Yurievitch GOROKHOV ,  Hao XU ,  Tingfang JI

IPC: H04W56/00 ,  H04L1/18

CPC classification number: H04L5/0053 ,  H04L5/0007 ,  H04L5/0091 ,  H04W56/00

Abstract: Aspects of the disclosure relate to communication systems, apparatus and methods which enable or support configuring timing advance in a radio access network. The method includes defining a timing advance configuration for a radio access network that employs a modulation scheme with scalable numerology, determining timing advance parameters consistent with the timing advance configuration for a user equipment (UE) that is in communication with the radio access network, and transmitting the timing advance parameters to the UE during an initial access procedure involving the UE or while the UE is in a connected state in the radio access network. The timing advance configuration may be defined to accommodate a numerology used by the radio access network.

公开(公告)号：US20180270088A1

公开(公告)日：2018-09-20

申请号：US15984241

申请日：2018-05-18

Applicant: QUALCOMM Incorporated

Inventor： Jing JIANG ,  Krishna Kiran MUKKAVILLI ,  Naga BHUSHAN ,  Tingfang JI ,  Joseph Binamira SORIAGA ,  Peter GAAL ,  John Edward SMEE ,  Alexei Yurievitch GOROKHOV

IPC: H04L25/02 ,  H04W72/04 ,  H04L5/00 ,  H04L12/801

CPC classification number: H04L25/0226 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0058 ,  H04L5/0082 ,  H04L5/0096 ,  H04L47/12 ,  H04W72/0446

Abstract: The disclosure relates in some aspects to techniques for improved channel estimation. For example, a device can specify a pilot structure where pilot density differs over time. As another example, a device can indicate that a pilot from a prior transmission time interval (TTI) can be used for channel estimation. As another example, a device can employ frequency domain physical resource block (PRB) bundling with the bundling information signaling. As yet another example, a device can use an adjustable traffic-to-pilot ratio (TPR) for throughput optimization. Other aspects, embodiments, and features are also discussed and claimed.

公开(公告)号：US20180220423A1

公开(公告)日：2018-08-02

申请号：US15880218

申请日：2018-01-25

Applicant: QUALCOMM Incorporated

Inventor： Hung LY ,  Hao XU ,  Wanshi CHEN ,  Peter GAAL ,  Tingfang JI ,  Durga Prasad MALLADI

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

CPC classification number: H04W72/0453 ,  H04L1/0028 ,  H04L5/0098 ,  H04L27/2602 ,  H04L27/2613 ,  H04L27/2621

Abstract: Methods and apparatuses for adaptive subcarrier spacing in wireless communication networks are described. For example, the described aspects include transmitting, from the UE to a network entity, a first PRACH transmission with a first subcarrier spacing; determining, by the UE, that the first PRACH transmission to the network entity is not successful; and transmitting, from the UE, a second PRACH transmission with a second subcarrier spacing in response to determining that the first PRACH transmission is not successful, wherein the first subcarrier spacing is different from the second subcarrier spacing.

公开(公告)号：US20180139715A1

公开(公告)日：2018-05-17

申请号：US15682189

申请日：2017-08-21

Applicant: QUALCOMM Incorporated

Inventor： Hung LY ,  Peter GAAL ,  Heechoon LEE ,  Wanshi CHEN ,  Haitong SUN ,  Tingfang JI

IPC: H04W56/00 ,  H04W72/04

Abstract: Aspects of the present disclosure describe acquiring a synchronization signal transmitted at a frequency location. An ordered list of possible frequency locations within a frequency band at which the synchronization signal may be transmitted can be obtained. The synchronization signal can be searched for at one or more possible frequency locations in the ordered list of possible frequency locations, where the searching is performed according to an order indicated in the ordered list of possible frequency locations.