公开(公告)号：US10511373B2

公开(公告)日：2019-12-17

申请号：US16512229

申请日：2019-07-15

Applicant: Qualcomm Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Jing Sun ,  Andrei Dragos Radulescu ,  Aleksandar Damnjanovic ,  Arumugam Chendamarai Kannan

IPC: H04B7/06

Abstract: Methods, systems, and devices for wireless communication are described that support overriding a beam monitoring pattern for control channel transmissions based on channel conditions between a user equipment and a base station. A base station may select a beam monitoring pattern for transmitting control channel transmissions, which may include a pattern in which two or more beams are used for control channel transmissions. In the event that a first beam of the beams used in the beam monitoring pattern meets certain metrics, the use of one or more additional beams according to the beam monitoring pattern may be overridden and transmissions continued using the first beam. The metrics for continuing use of the first beam may include channel quality metrics, a number of consecutive successful transmissions using the first beam, one or more other metrics, or any combination thereof.

公开(公告)号：US20190364579A1

公开(公告)日：2019-11-28

申请号：US16401979

申请日：2019-05-02

Applicant: Qualcomm Incorporated

Inventor： Xiaoxia Zhang ,  Andrei Dragos Radulescu ,  Srinivas Yerramalli ,  Yongbin Wei ,  Tamer Kadous ,  Jing Sun

IPC: H04W72/12 ,  H04W88/06 ,  H04B7/024 ,  H04L1/00 ,  H04L27/26 ,  H04W16/14 ,  H04B7/0413

Abstract: Wireless communications systems and methods related to serving user equipment devices (UEs) using multi-transmission/reception point (TRP) techniques with dynamic varying TRP clusters are provided. A wireless communication device receives, from a first group of one or more TRPs, a first signal during a first time period. The wireless communication device receives, from a second group of one or more TRPs, a second signal during a second time period, wherein at least one TRP in the second group is not in the first group. The first signal may include a first transport block (TB) and the second signal may include a second TB different from the first TB. Alternatively, the first signal may include a first portion of a TB and the second signal includes a second portion of the TB different from the first portion.

公开(公告)号：US10461847B2

公开(公告)日：2019-10-29

申请号：US15607409

申请日：2017-05-26

Applicant: QUALCOMM Incorporated

Inventor： Andrei Dragos Radulescu ,  Hem Agnihotri ,  Stephen William Edge ,  Sven Fischer ,  Bapineedu Chowdary Gummadi ,  Venkata A Naidu Babbadi

IPC: H04B7/26 ,  H04W16/16 ,  H04W64/00

Abstract: Disclosed are techniques for determining a distance (or range) between a first wireless entity and a second wireless entity. In an aspect, the first wireless entity transmits a first positioning reference signaling (PRS) signal to the second wireless entity at a first time, where the first PRS signal is received by the second wireless entity at a second time, and receives a second PRS signal from the second wireless entity at a third time, where the second PRS signal is transmitted by the second wireless entity at a fourth time. The first wireless entity enables the distance to be determined by a location computing entity, for example, by a location server, based on the first, second, third, and fourth times. The first wireless entity may be a mobile device or a base station and the second wireless entity may be the other of the mobile device or base station.

公开(公告)号：US10448296B2

公开(公告)日：2019-10-15

申请号：US15787653

申请日：2017-10-18

Applicant: QUALCOMM Incorporated

Inventor： Andrei Dragos Radulescu ,  Aziz Gholmieh ,  Tamer Kadous ,  Chirag Sureshbhai Patel

IPC: H04W36/08 ,  H04W36/00 ,  H04W16/14 ,  H04W36/14

Abstract: Techniques are provided for efficient handover of a user equipment (UE) between base stations that operate using different radio access technologies (RATs). A handover message to a UE may indicate that the UE is to be handed over from a source base station operating according to a first RAT to a target base station operating according to a second RAT. The handover message may be configured to be transmitted using the first RAT and include embedded information, that is transparent to the first RAT, for the handover to the target base station using the second RAT.

公开(公告)号：US10405228B2

公开(公告)日：2019-09-03

申请号：US15892183

申请日：2018-02-08

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Srinivas Yerramalli ,  Andrei Dragos Radulescu ,  Tamer Kadous

IPC: H04W28/02 ,  H04W72/04 ,  H04W24/02 ,  H04W48/16 ,  H04L5/00 ,  H04W48/12

Abstract: Configurations of system information blocks providing cell access information supporting wideband coverage enhancement in wireless communication networks are disclosed. Embodiments encode and transmit information elements for both a legacy system information block and a wideband coverage enhancement system information block in a multiple subframe discovery reference signal configuration. For example, embodiments may utilize a two subframe CR-DRS configuration in which a WCE SIB-MF1 message payload is encoded and transmitted independently with respect to a legacy SIB-MF1 message payload. Additionally, or alternatively, embodiment may utilize a two subframe CR-DRS configuration in which both a legacy SIB-MF1 message payload and a WCE SIB-MF1 message payload share the same DRS subframe payload by jointly encoding the legacy SIB-MF1 and WCE SIB-MF1 messages.

公开(公告)号：US10396883B2

公开(公告)日：2019-08-27

申请号：US15607412

申请日：2017-05-26

Applicant: QUALCOMM Incorporated

Inventor： Andrei Dragos Radulescu ,  Hem Agnihotri ,  Stephen William Edge ,  Sven Fischer ,  Bapineedu Chowdary Gummadi ,  Venkata A Naidu Babbadi

IPC: H04W88/06 ,  H04B7/08 ,  H04W64/00 ,  H04W16/16 ,  H04B7/26

Abstract: Disclosed are techniques for positioning a user equipment (UE). In an aspect, a location server receives a first propagation time measurement and a first plurality of OTDOA RSTD measurements from a first UE at a first time, receives a second propagation time measurement and a second plurality of OTDOA RSTD measurements from a second UE at a second time, determines at least one real-time difference between a pair of base stations based on the first and second propagation time measurements and the first and second pluralities of OTDOA RSTD measurements, wherein the pair of base stations is associated with the first and second pluralities of OTDOA RSTD measurements, receives a third plurality of OTDOA RSTD measurements from a third UE at a third time, and determines a position of the third UE based at least in part on the at least one real-time difference between the pair of base stations.

公开(公告)号：US10368305B2

公开(公告)日：2019-07-30

申请号：US15465383

申请日：2017-03-21

Applicant: QUALCOMM Incorporated

Inventor： Andrei Dragos Radulescu ,  Tao Luo ,  Chirag Patel ,  Miguel Griot ,  Manu Sharma ,  Tamer Kadous ,  Rajat Prakash

IPC: H04W48/18 ,  H04W48/10 ,  H04W48/16 ,  H04W74/08

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may attempt to access a network at a local area network access point without prior context information. The access point may be a hotspot operating in unlicensed spectrum according to a Long Term Evolution (LTE)-based standard. The UE may be unable to determine if it is authorized to access the network, so the UE may attempt to obtain system information that provides a list of service providers supported by the network. The UE may then determine whether it has credentials for a supported service provider, and the UE may access the network using those credentials when a supported service provider is recognized. Other broadcast messages may provide information about system information for supported service providers. A UE that is unable to access the network using stored credentials may attempt access using a random access channel procedure.

公开(公告)号：US20190132869A1

公开(公告)日：2019-05-02

申请号：US16162774

申请日：2018-10-17

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Andrei Dragos Radulescu ,  Arumugam Chendamarai Kannan ,  Jing Sun ,  Xiaoxia Zhang

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

Abstract: Methods, systems, and devices for wireless communications are described. A transmitter may include an interference avoidance preamble in a wireless transmission. The interference avoidance preamble may identify resources for transmitting an interference avoidance request associated with the wireless transmission. A receiver may experience interference between the wireless transmission and another wireless transmission, and the receiver may transmit the interference avoidance request using the resources identified in the interference avoidance preamble. The transmitter may receive the interference avoidance request and, in response, may enable an interference avoidance mechanism, for example, a listen before talk (LBT) procedure, a frequency-division multiplexing (FDM) scheme, a time-division multiplexing (TDM) scheme, a spatial multiplexing scheme, or a combination.

公开(公告)号：US20190029040A1

公开(公告)日：2019-01-24

申请号：US16027735

申请日：2018-07-05

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Xiaoxia Zhang ,  Andrei Dragos Radulescu

IPC: H04W74/08 ,  H04W48/16 ,  H04B7/0413 ,  H04W72/04

Abstract: Techniques are described herein for coordinating a random access channel (RACH) procedure with a beam discovery procedure. A timing and configuration of a RACH window may be coordinated with a beam discovery window. By coordinating the two windows, a user equipment (UE) may be configured to use information learned from the beam discovery procedure during the RACH procedure, thereby increasing the likelihood that the RACH procedure is successful. In some cases, the RACH procedure is triggered by the transmission of directional beam reference signals during the beam discovery window. In such cases, the UE determines the timing of the RACH window based at least in part on the receipt of the directional beam reference signals. In some cases, the RACH window is configured using a static configuration relative to the beam discovery window.

公开(公告)号：US20180359656A1

公开(公告)日：2018-12-13

申请号：US15892183

申请日：2018-02-08

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Srinivas Yerramalli ,  Andrei Dragos Radulescu ,  Tamer Kadous

IPC: H04W28/02 ,  H04W72/04 ,  H04L5/00 ,  H04W48/16 ,  H04W24/02

CPC classification number: H04W28/0289 ,  H04L5/0048 ,  H04W24/02 ,  H04W48/12 ,  H04W48/16 ,  H04W72/042 ,  H04W72/0446

Abstract: Configurations of system information blocks providing cell access information supporting wideband coverage enhancement in wireless communication networks are disclosed. Embodiments encode and transmit information elements for both a legacy system information block and a wideband coverage enhancement system information block in a multiple subframe discovery reference signal configuration. For example, embodiments may utilize a two subframe CR-DRS configuration in which a WCE SIB-MF1 message payload is encoded and transmitted independently with respect to a legacy SIB-MF1 message payload. Additionally, or alternatively, embodiment may utilize a two subframe CR-DRS configuration in which both a legacy SIB-MF1 message payload and a WCE SIB-MF1 message payload share the same DRS subframe payload by jointly encoding the legacy SIB-MF1 and WCE SIB-MF1 messages.