公开(公告)号：US20210227569A1

公开(公告)日：2021-07-22

申请号：US17141995

申请日：2021-01-05

Applicant: QUALCOMM Incorporated

Inventor： Huilin XU ,  Seyedkianoush HOSSEINI ,  Hung Dinh LY ,  Jing LEI ,  Wanshi CHEN ,  Peter Pui Lok ANG ,  Krishna Kiran MUKKAVILLI

IPC: H04W72/12 ,  H04W24/08 ,  H04L1/00 ,  H04W72/04 ,  H04W76/11

Abstract: Aspects described herein relate to determining a physical downlink control channel (PDCCH) limit corresponding to at least one of a number of blind detections (BDs) and a number of control channel elements (CCEs) based on one or more PDCCH candidates for a first cell that are monitored in a second cell or one or more PDCCH candidates for the first cell that are monitored in the at least a third cell, wherein the first cell is scheduled by the second cell and the at least a third cell different from the second cell, and communicating one or more PDCCH transmissions for the first cell from the second cell and the at least a third cell based on the PDCCH limit.

公开(公告)号：US20210037577A1

公开(公告)日：2021-02-04

申请号：US17075653

申请日：2020-10-20

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Hung Dinh LY ,  Yi HUANG ,  Peter GAAL ,  Joseph Binamira SORIAGA ,  Amir AMINZADEH GOHARI ,  Wanshi CHEN ,  Linhai HE ,  Tingfang JI

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

Abstract: A user equipment (UE) may be configured to receive configuration information from a base station, and the configuration information may indicate at least two different random access channel (RACH) request configuration parameters that each is associated with a respective radio resource control (RRC) state. The UE may be further configured to generate a first message associated with a two-step RACH procedure including a preamble and a payload, the payload including data on an uplink data channel and at least one reference signal. The UE may be further configured to transmit the first message to the base station using at least one of the at least two different RACH request configuration parameters that corresponds to an RRC state of the UE. The preamble may be transmitted on a first set of resources associated with a RACH occasion, and the payload may be transmitted on a second set of resources.

公开(公告)号：US20210037573A1

公开(公告)日：2021-02-04

申请号：US16913982

申请日：2020-06-26

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh LY ,  Wanshi CHEN ,  Jing LEI

IPC: H04W74/08 ,  H04W72/04

Abstract: A random access configuration information having a plurality of random access configurations that may be utilized by UE to provide coverage enhancements for a two-step RACH process. The apparatus receives, from a base station, random access configuration information. The random access configuration information comprising a plurality of random access configurations. The apparatus selects one of the plurality of random access configurations. The apparatus generates a first random access message having a preamble and a payload, based on the selected random access configuration. The apparatus transmits the first random access message to the base station to initiate a random access procedure.

公开(公告)号：US20210014900A1

公开(公告)日：2021-01-14

申请号：US16922710

申请日：2020-07-07

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Wanshi CHEN ,  Seyong PARK ,  Alexandros MANOLAKOS ,  Joseph Binamira SORIAGA ,  Krishna Kiran MUKKAVILLI

IPC: H04W74/08 ,  H04W64/00

Abstract: In an aspect, a user equipment (UE) determines a resource configuration and a transmit power for a physical random access channel (PRACH) preamble sequence and/or a configuration and a transmit power for a physical uplink shared channel (PUSCH) resource unit (PRU) based on positioning information of the UE relative to the base station, the speed of the UE relative to the base station, and/or a radio resource control (RRC) state of the UE, transmits, to the base station, a message comprising the PRACH preamble sequence on a PRACH occasion and a payload on a PRU occasion based on the determined resource configuration and transmit power for the PRACH preamble sequence and/or the determined resource configuration and transmit power for the PRU, and receives, from the base station, a second message comprising information on a physical downlink control channel (PDCCH) and a payload on a physical downlink shared channel (PDSCH).

公开(公告)号：US20190313402A1

公开(公告)日：2019-10-10

申请号：US16374553

申请日：2019-04-03

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Seyong PARK ,  Joseph Binamira SORIAGA ,  Naga BHUSHAN ,  Tingfang JI

IPC: H04W72/04 ,  H04L27/20

Abstract: Aspects of the disclosure relate to methods and an apparatus for transmitting a signal in a multi-layer hybrid resource spread multiple access (RSMA) system. A non-orthogonal multiple access (NOMA) user equipment (UE) demultiplexes a stream of bits into a plurality of layers, encodes each layer with a different coding rate, modulates each layer of encoded bits with a different modulation scheme, and spreads and scrambles each layer of modulated symbols with a different spreading code and a corresponding different scrambling code. Thereafter, the NOMA UE permutes the plurality of layers having spread and scrambled symbols into a plurality of interleaved layers, scales and phase rotates each interleaved layer with a different scaling factor and a corresponding different phase rotating factor, sums the scaled and phase rotated symbols, maps the summed symbols onto a set of allocated resources, and transmits the mapped symbols via the set of resources.

公开(公告)号：US20190312691A1

公开(公告)日：2019-10-10

申请号：US16373113

申请日：2019-04-02

Applicant: QUALCOMM Incorporated

Inventor： Seyong PARK ,  Jing LEI ,  Joseph Binamira SORIAGA ,  Renqiu WANG ,  Naga BHUSHAN ,  Tingfang JI

IPC: H04L5/00 ,  H04B1/7103

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine that a resource spread multiple access scheme is enabled, wherein the bit and/or symbol level resource spreading happens in time and/or frequency domain through bits or symbol level repetition and spreading. Furthermore, the UE may process bits of codewords and modulated symbols using a set of spreading sequences and a set of scrambling sequences. The UE may transmit the modulated symbols with a discrete-Fourier-transform (DFT)-spread (DFT-s) waveform based at least in part on processing the modulated symbols using the set of spreading sequences and the set of scrambling sequences. Numerous other aspects are provided.

公开(公告)号：US20180206126A1

公开(公告)日：2018-07-19

申请号：US15641780

申请日：2017-07-05

Applicant: QUALCOMM Incorporated

Inventor： XIAOXIA ZHANG ,  Taesang YOO ,  Seyed Ali Akbar FAKOORIAN ,  Siddhartha MALLIK ,  Juan MONTOJO ,  Jing LEI

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

Abstract: Wireless communications systems and methods related to dynamic time-division duplexing (TDD) and self-contained subframe-based communications in a shared spectrum are provided. A first wireless communication device communicates a control information communication protection request over a shared spectrum. The shared spectrum is shared by a plurality of network operating entities based on priorities. The first wireless communication device is associated with a first network operating entity of the plurality of network operating entities. The first wireless communication device communicates, with a second wireless communication device associated with the first network operating entity, control information in a first link direction during a transmission opportunity (TXOP) in the shared spectrum. The first wireless communication device communicates, with the second wireless communication device, data in a second link direction during the TXOP.

公开(公告)号：US20170134199A1

公开(公告)日：2017-05-11

申请号：US15255069

申请日：2016-09-01

Applicant: QUALCOMM Incorporated

Inventor： Renqiu WANG ,  Hao XU ,  Xiao Feng WANG ,  Wanshi CHEN ,  Yongbin WEI ,  Seyed Ali Akbar FAKOORIAN ,  Alberto RICO ALVARINO ,  Madhavan Srinivasan VAJAPEYAM ,  Jing LEI

IPC: H04L27/26 ,  H04W74/08 ,  H04B1/713 ,  H04L5/00

CPC classification number: H04L27/2602 ,  H04B1/713 ,  H04B7/066 ,  H04L5/0007 ,  H04L5/0012 ,  H04L5/0048 ,  H04L5/0091 ,  H04L27/26 ,  H04L27/2666 ,  H04L69/24

Abstract: An apparatus may receive signaling from a base station that indicates different tone indices. The apparatus may further transmit a plurality of symbols in a single tone uplink transmission. In an aspect, groups of symbols in the plurality of symbols are transmitted using the different tone indices of the single tone uplink transmission indicated by the received signaling. A second apparatus may signal to at least one user equipment (UE) information associated with different tone indices for use in transmitting a plurality of symbols in a single tone uplink transmission. The second apparatus may further receive the plurality of symbols in the single tone uplink transmission. In an aspect, pairs of symbols in the plurality of symbols are received in different tone indices of the single tone uplink transmission.

公开(公告)号：US20170094672A1

公开(公告)日：2017-03-30

申请号：US15274632

申请日：2016-09-23

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Arumugam CHENDAMARAI KANNAN ,  Jing LEI ,  Sridhar RAMANUJAM ,  Yongbin WEI

IPC: H04W72/08 ,  H04L12/26 ,  H04W28/02 ,  H04W24/10

Abstract: The disclosure provides for detecting interference in wireless communications. A wireless devices may receive an interfering signal on a portion of unlicensed spectrum. The wireless device may perform cyclic autocorrelation on the interfering signal to determine one or both of a cyclic prefix length and a symbol period. The wireless device may determine a radio access technology of the interfering signal based on one or both of the cyclic prefix length and the symbol period. In an aspect, the wireless device may further transmit an interference report including information regarding the interfering signal including the cyclic prefix length, symbol period, identified radio access technology, or packet length.

公开(公告)号：US20250097983A1

公开(公告)日：2025-03-20

申请号：US18470982

申请日：2023-09-20

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Kazuki TAKEDA ,  Kianoush HOSSEINI

IPC: H04W74/08 ,  H04L1/1812 ,  H04W74/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a physical downlink control channel (PDCCH) message indicating initiation of a random access procedure, the PDCCH message having a dedicated format with a set of fields for indicating one or more parameters associated with the initiation of the random access procedure. The UE may transmit a first random access message of the random access procedure, the first random access message being associated with the one or more parameters. Numerous other aspects are described.