公开(公告)号：US10736113B2

公开(公告)日：2020-08-04

申请号：US15424519

申请日：2017-02-03

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Hao Xu ,  Wanshi Chen ,  Xiao feng Wang ,  Peter Gaal ,  Juan Montojo ,  Alberto Rico Alvarino ,  Jing Lei ,  Seyed Ali Akbar Fakoorian

IPC: H04W72/04 ,  H04L27/26 ,  H04L5/00 ,  G01S5/02 ,  H04W56/00 ,  H04W72/00 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) and a base station may establish narrowband communications. The base station may configure positioning reference signal (PRS) resources based at least in part on wideband or narrowband transmissions, and a UE may receive the PRS transmissions over one or more narrowband regions. The UE, may determine PRS resources and receive portions of wideband PRS transmissions that are transmitted in one or more narrowband regions of the system bandwidth. The base station may configure PRS resources separately for narrowband devices, such as according to a bandwidth of the narrowband devices or with a single PRS tone per symbol compared to two PRS tones per symbol that may be used for wideband PRS transmissions. The base station may perform positioning measurements for a UE based at least in part on timing of uplink transmissions from the UE.

公开(公告)号：US10728000B2

公开(公告)日：2020-07-28

申请号：US16238268

申请日：2019-01-02

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Seyong Park ,  Renqiu Wang ,  Jing Jiang ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  Naga Bhushan ,  Yi Huang ,  Ying Wang

IPC: H04L5/00 ,  H04L27/06 ,  H04L27/26 ,  H04W76/28 ,  H04W76/27 ,  H04J13/00 ,  H04J11/00

Abstract: Methods, systems, and devices for wireless communications are described that provide a number of groups of transmitters, each group of transmitters having at least one user equipment (UE), and each group of transmitters having an associated transmission opportunity (TXO) for transmission of a reference signal. A number of UEs may transmit transmissions to a base station according to non-orthogonal multiple access (NOMA) techniques in which two or more UEs concurrently transmit to the base station. Depending upon a number of UEs, a number of groups of transmitters, an overloading factor of NOMA transmissions, a system bandwidth, a time span of the reference signal TXO, or any combination thereof, a binary or non-binary orthogonal cover code (OCC) may be applied to transmitted reference signals, which the base station may use to identify reference signals from particular UEs.

公开(公告)号：US10708020B2

公开(公告)日：2020-07-07

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 ,  H04L27/26 ,  H04L25/02 ,  H04L5/14 ,  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：US10680782B2

公开(公告)日：2020-06-09

申请号：US15975638

申请日：2018-05-09

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Renqiu Wang ,  Hao Xu ,  Seyong Park

IPC: H04W72/04 ,  H04L5/00 ,  H04L1/18 ,  H04W72/14

Abstract: Aspects of the disclosure relate to implied and explicit mapping of uplink (UL) resources for acknowledgment communications from a user equipment (UE). In some examples disclosed herein, implied mapping may include indexing of information elements in a downlink (DL) communication. The explicit mapping may include information elements in the DL communication configured to explicitly provide a location of an UL resource. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US10660043B2

公开(公告)日：2020-05-19

申请号：US16253211

申请日：2019-01-21

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Peter Gaal ,  Yi Huang ,  Wei Yang ,  Renqiu Wang

IPC: H04W52/14 ,  H04W52/36 ,  H04W52/58 ,  H04W52/32 ,  H04W52/22

Abstract: A user equipment (UE) may apply transmit power control (TPC) commands and transmit uplink information based on received downlink control information (DCI). A UE may receive multiple DCI messages including multiple TPC commands for an uplink transmission. The power level for the uplink transmission may be adjusted based on the combination of TPC commands. For example, the TPC commands may be considered together (e.g., added, averaged, etc.), the latest TPC command may be used, etc. In some cases, a change in TPC command for an uplink transmission (e.g., from a previous TPC command for the uplink transmission indicated via other DCI) may indicate a change in one or more transmission attributes for the uplink transmission. In some cases, a UE may receive a grant for a prioritized transmission, resulting in discontinuous transmission (DTX) of a previous transmission, which may result in TPC modification by the UE.

公开(公告)号：US10652760B2

公开(公告)日：2020-05-12

申请号：US15202023

申请日：2016-07-05

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Hao Xu ,  Wanshi Chen

IPC: H04W24/02 ,  H04W4/70 ,  H04B1/713 ,  H04J13/00 ,  H04B3/36 ,  H04B7/0413 ,  H04J11/00 ,  H04L5/00 ,  H04W8/08 ,  H04W16/32 ,  H04W72/04 ,  H04W88/02 ,  H04W88/08 ,  H04W88/12

Abstract: Certain aspects of the present disclosure generally relate to wireless communications, and more specifically increasing user capacity through a frame structure which supports eMTC UL multi-user multiplexing. According to aspects, a UE may identify at least one narrowband region within a wider system bandwidth, determine at least one parameter assigned to the UE for transmitting symbols of a physical uplink channel in the narrowband region that are multiplexed with symbols transmitted by one or more other UEs, and transmit the physical uplink channel using the at least one determined parameter.

公开(公告)号：US10609619B2

公开(公告)日：2020-03-31

申请号：US16154349

申请日：2018-10-08

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Madhavan Srinivasan Vajapeyam ,  Hao Xu ,  Wanshi Chen ,  Peter Gaal

IPC: H04W36/36 ,  H04W4/70 ,  H04W48/20 ,  H04H20/38 ,  H04L5/00 ,  H04W36/00 ,  H04W72/04 ,  H04W72/08

Abstract: Cell selection techniques are provided for network access to cells that may employ one or more coverage enhancement techniques. A user equipment (UE), which may be a machine type communication (MTC) device, upon initial acquisition or upon wakeup may measure a reference signal received power (RSRP), reference signal received quality (RSRQ), or both, and determine a cell selection value based at least in part on the RSRP, RSRQ, or a combination thereof. The cell selection value may be determined based on an offset, which may be selected based on a measurement accuracy capability of the UE. UE sequential access attempts, neighbor cell list information that may include coverage enhancement of neighboring cells transmissions, and cell re-selection measurement frequency adjustments are also described.

公开(公告)号：US20200007291A1

公开(公告)日：2020-01-02

申请号：US16567701

申请日：2019-09-11

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 downlink signaling from an access point, determining, based at least in part on the downlink signaling, one or more precoders for uplink signaling, transmitting, to the access point and based at least in part on the one or more precoders, uplink signaling, and receiving, from the access point and based on transmitting the uplink signaling, a precoder indication to use the one or more precoders or one or more other precoders in transmitting uplink communications to the access point.

公开(公告)号：US10476642B2

公开(公告)日：2019-11-12

申请号：US15619086

申请日：2017-06-09

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Wei Zeng ,  June Namgoong ,  Hao Xu ,  Peter Gaal

IPC: H04L5/00 ,  H04L27/26 ,  H04W72/04

Abstract: Various additional and alternative aspects are described herein. In some aspects, the present disclosure provides a method for wireless communication. The method includes determining at least one RS pattern for allocating a reference signal on an uplink channel and a downlink channel based on one or more transmission factors for transmitting the reference signal, wherein at least a portion of the at least one RS pattern is the same for the uplink channel and the downlink channel. The method further includes transmitting the reference signal using the determined RS pattern.

公开(公告)号：US10432374B2

公开(公告)日：2019-10-01

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: H04L12/28 ,  H04L5/00 ,  H04J11/00 ,  H04L1/16 ,  H04W72/04 ,  H04B7/0456 ,  H04B7/06 ,  H04L1/00

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.