-
241.发明申请公开(公告)号：US20210076381A1
公开(公告)日：2021-03-11
申请号：US17040596
申请日：2019-03-25
Applicant: Qualcomm Incorporated
Inventor： Yiqing CAO , Wanshi CHEN , Jing LEI , Renqiu WANG
Abstract: Methods, systems, and devices for wireless communications are described. In some systems (e.g., non-orthogonal multiple access (NOMA) systems), a base station may serve a large number of user equipments (UEs) on the uplink. To improve detectability for these uplink transmissions (e.g., if reference signals are not available for the transmissions), the UEs may implement parallel transmissions of preambles with uplink data. A UE may split the uplink data into one or more data layers, and may select one or more preamble layers to transmit superposed with the data layers. These preambles may be sequences known to both the UE and the base station to aid in detectability. The UE may assign different signature sequences to each of these layers based on cross-correlation values (e.g., assigning sequences with higher cross-correlation values to the data layers for improved detectability), and may scramble the layers into a single shared signal for transmission.
-
公开(公告)号：US20200275505A1
公开(公告)日：2020-08-27
申请号：US16783985
申请日：2020-02-06
Applicant: QUALCOMM Incorporated
Inventor： Jing LEI , Wanshi CHEN , Peter GAAL , Joseph Binamira SORIAGA
Abstract: Aspects described herein relate to determining a failure associated with reception, by a base station, of an initial transmission of a random access message transmitted by the UE in a two-step random access procedure, and based on determining the failure situations associated with reception of the random access message, configuring the parameters of a retransmission and/or retransmitting at least a portion of the random access message.
-
公开(公告)号：US20200252975A1
公开(公告)日：2020-08-06
申请号：US16777724
申请日：2020-01-30
Applicant: QUALCOMM Incorporated
Inventor： Jing LEI , Seyong PARK , Linhai HE , Jay Kumar SUNDARARAJAN , Hung Dinh LY , Wanshi CHEN , Peter GAAL
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station (BS), a signaling communication that indicates one or more preamble sequence configurations. Each of the preamble sequence configurations may specify a respective plurality of preamble sequence rules for a different random access channel (RACH) procedure type. The UE may generate, based at least in part on a plurality of preamble sequence rules for a preamble sequence configuration of the one or more preamble sequence configurations, a preamble sequence for a RACH communication in a RACH procedure. Numerous other aspects are provided.
-
244.发明申请公开(公告)号：US20200245372A1
公开(公告)日：2020-07-30
申请号：US16773949
申请日：2020-01-27
Applicant: QUALCOMM Incorporated
Inventor： Jing LEI , Alexandros MANOLAKOS , Linhai HE , Joseph Binamira SORIAGA , Tingfang JI , Ying WANG , Seyong PARK , Jay Kumar SUNDARARAJAN , Wanshi CHEN
Abstract: Aspects of the present disclosure provide techniques and apparatus for wireless communication. In one aspect, a method may be performed by a wireless device such as a user equipment (UE) and generally includes: receiving at least one downlink (DL) signal from one or more base stations or transmitting at least one uplink (UL) positioning reference signal (PRS), the received at least one DL signal comprising: at least one DL PRS, at least one synchronization signal block (SSB), at least one system information block (SIB), at least one other reference signal comprising a channel state information reference signal (CSI-RS), or a combination thereof, wherein at least one measurement is performed based, at least in part, on the received at least one DL signal or the transmitted at least one UL PRS; and performing at least one adjustment for random access based, at least in part, on the at least one measurement.
-
公开(公告)号：US20200236716A1
公开(公告)日：2020-07-23
申请号：US16743673
申请日：2020-01-15
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
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.
-
Patent Agency Ranking
公开(公告)号：US20190297489A1
公开(公告)日：2019-09-26
申请号：US16277671
申请日：2019-02-15
Applicant: QUALCOMM Incorporated
Inventor： Jing LEI , Renqiu WANG , Wanshi CHEN , Huilin XU , Yeliz TOKGOZ , Peter Pui Lok ANG
Abstract: Various aspects and features provide waveform design and signaling support that provide and facilitate high accuracy positioning determination by low powered devices (e.g. UEs) in NR and IoT by allowing UEs to request on demand positioning operation support from a base station and the base station to dynamically configure parameters associated with a positioning reference signal (PRS) for transmission to the UEs. A UE may transmit an indication of its positioning requirement and/or capability information to a base station. The base station may configure parameters associated with a positioning reference signal (PRS), for example, a waveform type of the PRS, based on the indication and transmit the PRS to the UE. The UE may receive the PRS having the configured parameters and may perform at least one of UE positioning, ranging, or a UE velocity determination based on the received PRS.
-
247.发明申请公开(公告)号：US20190020529A1
公开(公告)日：2019-01-17
申请号：US16030335
申请日：2018-07-09
Applicant: QUALCOMM Incorporated
Inventor： Jing LEI , Jing SUN , Tamer KADOUS
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：US20180070381A1
公开(公告)日：2018-03-08
申请号：US15488737
申请日：2017-04-17
Applicant: QUALCOMM Incorporated
IPC: H04W74/08
CPC classification number: H04W74/0833 , H04L1/004 , H04L27/26
Abstract: Various aspects described herein relate to techniques for random access based on scalable signature design in wireless communications systems. A method, a computer-readable medium, and an apparatus are provided. In an aspect, the method may include randomly choosing an array of source symbols, wherein the array has one or more scalable dimensions based on at least one of a capacity requirement or a coverage requirement of a random access channel (RACH), encoding the array of source symbols into a codeword for a RACH signature, mapping the codeword to a serial concatenation of orthogonal or quasi-orthogonal sequences to define the RACH signature, and transmitting the RACH signature within a RACH slot. The techniques described herein may apply to different communications technologies, including 5th Generation (5G) New Radio (NR) communications technology.
-
公开(公告)号：US20170339677A1
公开(公告)日：2017-11-23
申请号：US15497292
申请日：2017-04-26
Applicant: QUALCOMM Incorporated
Inventor： Alberto RICO ALVARINO , Hao XU , Peter GAAL , Wanshi CHEN , Renqiu WANG , Seyed Ali Akbar FAKOORIAN , Juan MONTOJO , Jing LEI , Yongbin WEI , Arthur MILLER
CPC classification number: H04W72/042 , H04L5/0007 , H04L5/0053 , H04L5/0091 , H04L5/0094 , H04M1/72511 , H04W4/70 , H04W16/02 , H04W36/08 , H04W52/0274 , H04W52/028 , H04W72/1289 , H04W74/006 , H04W76/15 , H04W76/28 , H04W76/36 , H04W84/042 , Y02D70/1242 , Y02D70/1262 , Y02D70/1264 , Y02D70/142 , Y02D70/146 , Y02D70/164 , Y02D70/20 , Y02D70/21 , Y02D70/23 , Y02D70/24 , Y02D70/26
Abstract: Methods and apparatus for flexible bandwidth operation in a wireless communication network are provided. A User Equipment (UE) monitors a first set of resources for a first control channel in a first bandwidth region. In response, to detecting the first control channel, the UE monitors a second set of resources in a second bandwidth region for at least one of control information or data, the second bandwidth region larger than the first bandwidth region, wherein the monitoring the second set of resources for the control information includes monitoring the second set of resources for a second control channel for receiving the control information scheduling resources for receiving the data.
-
公开(公告)号：US20170339658A1
公开(公告)日：2017-11-23
申请号：US15493247
申请日：2017-04-21
Applicant: QUALCOMM Incorporated
Inventor： Renqiu WANG , Hao XU , Wanshi CHEN , Xiao Feng WANG , Peter GAAL , Alberto RICO ALVARINO , Juan MONTOJO , Jing LEI , Seyed Ali Akbar FAKOORIAN
CPC classification number: H04W64/00 , G01S5/021 , G01S5/0236 , H04L5/0048
Abstract: Certain aspects of the present disclosure generally relate to downlink (DL) based and uplink (UL) based positioning reference signal (PRS) techniques that may help facilitate positioning procedures in systems deploying narrowband devices, such as narrowband Internet of Things (NB-IoT) devices. An exemplary method that may be performed by a node includes monitoring for positioning reference signals (PRS) transmitted from one or more base stations within a narrowband region of a wider system bandwidth, wherein tones of the PRS are repeated across at least one of multiple symbols within a same subframe, or multiple consecutive subframes, and estimating timing from the one or more base stations based on the PRS.
-
-
-
-
-
-
-
-
-
Search Results
330
records
(took 0.03 seconds)
