公开(公告)号：US10602545B2

公开(公告)日：2020-03-24

申请号：US15591475

申请日：2017-05-10

Applicant: QUALCOMM Incorporated

Inventor： Siddhartha Mallik ,  Taesang Yoo ,  Anastasios Stamoulis ,  Jing Sun ,  Aleksandar Damnjanovic ,  Juan Montojo

IPC: H04W74/08 ,  H04W72/08 ,  H04W48/08 ,  H04W48/16 ,  H04W74/00 ,  H04W72/04 ,  H04W84/12

Abstract: Methods, systems, and devices for wireless communication are described that provide for detection and management of hidden node interference. A user equipment (UE) may provide measurement reports to a serving transmitting device to help identify the hidden node interferer in response to detecting hidden node interference. The serving transmitting device may collaborate with one or more neighboring transmitting devices, such as other transmitting devices of an operator of a wireless communications system, to identify one or more of the neighboring transmitting devices that are within an energy detect or preamble detect radius of the hidden node. The serving transmitting device may coordinate with the neighboring transmitting device(s) to determine when the hidden node may transmit, to transmit coordinated preamble transmissions to prevent the hidden node from transmitting during a transmission, or to identify a modulation and coding scheme for the transmission.

公开(公告)号：US10581568B2

公开(公告)日：2020-03-03

申请号：US15637555

申请日：2017-06-29

Applicant: QUALCOMM Incorporated

Inventor： Siddhartha Mallik ,  Xiaoxia Zhang ,  Taesang Yoo ,  Aleksandar Damnjanovic ,  Juan Montojo

IPC: H04W56/00 ,  H04L5/00 ,  H04J3/06 ,  H04L29/08 ,  H04W8/00 ,  H04W28/18 ,  H04W40/24 ,  H04W48/16 ,  H04W74/08 ,  H04W16/14

Abstract: Network discovery and synchronization for new radio (NR) shared spectrum (NR-SS) is discussed for a wireless network having a super frame configuration on a shared spectrum shared between a plurality of network operators. A base station may obtain a discovery preamble from a plurality of network entities within the wireless network, wherein each of the plurality of network entities belongs to one or more of the plurality of network operators and shares the super frame configuration. The base station detects the timing of the super frame configuration using the discovery preamble and may then synchronize the base station to the super frame configuration according to the detected timing.

公开(公告)号：US10536944B2

公开(公告)日：2020-01-14

申请号：US15486197

申请日：2017-04-12

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Juan Montojo ,  Taesang Yoo ,  Siddhartha Mallik ,  Aleksandar Damnjanovic ,  Michael Mingxi Fan

IPC: H04W72/04 ,  H04L5/00 ,  H04W28/26 ,  H04W72/10 ,  H04W74/08 ,  H04L29/06 ,  H04W16/14

Abstract: Techniques are described for wireless communication at a wireless device. One method includes identifying a priority of the wireless device for a transmission interval of a radio frequency spectrum band shared by a plurality of network operating entities; identifying an absence of a predetermined transmission type in each of a number of clear channel assessment (CCA) slots of the transmission interval, in which each of the number of CCA slots is associated with a higher priority than the identified priority of the wireless device; and communicating over the radio frequency spectrum band based at least in part on the identified absence of the predetermined transmission type in each of the number of CCA slots associated with the higher priority than the priority of the wireless device.

公开(公告)号：US10536195B2

公开(公告)日：2020-01-14

申请号：US15684823

申请日：2017-08-23

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Xiaoxia Zhang ,  Taesang Yoo ,  Siddhartha Mallik ,  Juan Montojo

IPC: H04H20/71 ,  H04B7/024 ,  H04L12/715 ,  H04B17/318 ,  H04B7/06 ,  H04L5/00 ,  H04W56/00

Abstract: Techniques for overlapping cluster architecture for coordinated multipoint (CoMP) are provided. According to certain aspects, a method of wireless communication by a transmission point is provided. The method generally includes receiving, from a first base station, a first signal for a first user equipment (UE) to transmit over the air, receiving, from a second base station, a second signal for a second UE to transmit over the air, and combining the first and the second signals from the first and second base stations and transmitting the combined signal to the first and second UE.

公开(公告)号：US10485027B2

公开(公告)日：2019-11-19

申请号：US15410640

申请日：2017-01-19

Applicant: QUALCOMM Incorporated

Inventor： Siddhartha Mallik ,  Taesang Yoo ,  Jing Sun ,  Xiaoxia Zhang ,  Aleksandar Damnjanovic

IPC: H04W74/08 ,  H04W72/04 ,  H04W72/12 ,  H04W74/02

Abstract: Uplink short transmissions (ULSTs) may be configured in a wireless communications system to be transmitted in configured uplink resources within a listen-before-talk (LBT) frame or within a ULST window during which a user equipment (UE) may transmit a ULST and during which the base station may monitor for ULSTs. A UE having an amount of data to be transmitted that is less than a threshold value may transmit the data in the ULST, and avoid the need to have the base station allocate separate uplink resources outside of the configured uplink resources or the ULST window.

公开(公告)号：US10470112B2

公开(公告)日：2019-11-05

申请号：US14748204

申请日：2015-06-23

Applicant: QUALCOMM INCORPORATED

Inventor： Aleksandar Damnjanovic ,  Durga Prasad Malladi ,  Siddhartha Mallik ,  Naga Bhushan ,  Yongbin Wei ,  Gavin Bernard Horn

IPC: H04W48/00 ,  H04W8/22 ,  H04W24/02 ,  H04W72/04 ,  H04W74/00 ,  H04W76/28 ,  H04W84/04 ,  H04W88/02 ,  H04W88/08

Abstract: A method of wireless communication includes configuring a small cell with activation parameters. The activation parameters include a new carrier type having a reduced periodicity. The method also includes configuring a UE with time restricted measurements. The time restricted measurements correspond to the new carrier type and the reduced periodicity. The method further includes receiving small cell signal measurements from the UE and initiating an activation sequence in response to the small cell signal measurements.

公开(公告)号：US20190288761A1

公开(公告)日：2019-09-19

申请号：US16430139

申请日：2019-06-03

Applicant: QUALCOMM Incorporated

Inventor： Siddhartha Mallik ,  Tao Luo

IPC: H04B7/06 ,  H04L1/00 ,  H04W72/04 ,  H04W24/10

Abstract: Channel state information (CSI) request procedures are disclosed for use in long term evolution (LTE)/LTE-Advanced (LTE-A) networks with unlicensed spectrum. Instead of relying on periodic reference signals which may not be transmitted because of failed clear channel assessment (CCA) operations, an aperiodic reference signal is defined that provides an on-demand reference signal and CSI request for user equipment (UE), The serving base station transmits an identifier, which signals that the aperiodic reference signal will be transmitted, either in the same subframe or a future subframe, and then transmits the aperiodic reference signal in the designated subframe. UEs served by the base station will receive the identifier, identify a CSI request, either implicitly through the identifier signal received from the base station or explicitly through a UE-specific CSI request, and then generate a CSI report based on the aperiodic reference signal for transmission back to the serving base station.

公开(公告)号：US10397796B2

公开(公告)日：2019-08-27

申请号：US15177928

申请日：2016-06-09

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Tao Luo ,  Taesang Yoo ,  Xiaoxia Zhang ,  Siddhartha Mallik

IPC: H04W72/08 ,  H04W16/14 ,  H04W74/08 ,  H04W72/12 ,  H04W84/12

Abstract: Techniques are described for wireless communication. One method of wireless communication includes receiving, at a first user equipment (UE), a first communication over a shared radio frequency spectrum band from a first base station. The first communication includes a pre-grant communication associated with a downlink transmission or a grant of uplink resources associated with an uplink transmission. The method further includes determining, based at least in part on receiving the first communication, whether a channel reservation signal is detected over the shared radio frequency spectrum band; and transmitting a second communication over the shared radio frequency spectrum band, to the first base station, based at least in part on the determining. The second communication includes an approval of the downlink transmission or the uplink transmission.

公开(公告)号：US10231132B2

公开(公告)日：2019-03-12

申请号：US15650047

申请日：2017-07-14

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Siddhartha Mallik ,  Taesang Yoo ,  Juan Montojo ,  Aleksandar Damnjanovic ,  Junyi Li

IPC: H04W72/04 ,  H04W16/14 ,  H04L5/00 ,  H04L5/26 ,  H04W74/08 ,  H04L27/26 ,  H04W56/00 ,  H04W74/00

Abstract: Wireless communications systems and methods related to reservation signal transmission and detection for spectrum sharing are provided. A first wireless communication device communicates, with a second wireless communication device, a reservation request (RRQ) signal to reserve a transmission opportunity (TXOP) in a shared spectrum, wherein the shared spectrum is shared by a plurality of network operating entities, and wherein the first wireless communication device and the second wireless communication device are associated with a first network operating entity of the plurality of network operating entities. The first wireless communication device transmits a reservation response (RRS) signal indicating an interference tolerance level of the first wireless communication device.

公开(公告)号：US20180343588A1

公开(公告)日：2018-11-29

申请号：US15985048

申请日：2018-05-21

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Kamel Sadek ,  Yisheng Xue ,  Siddhartha Mallik ,  Tamer Kadous ,  Xiaoxia Zhang ,  Taesang Yoo ,  Michael Mingxi Fan ,  Aleksandar Damnjanovic ,  Yongbin Wei ,  Jing Sun

IPC: H04W28/26 ,  H04L5/00 ,  H04W52/24 ,  H04B7/06

CPC classification number: H04W28/26 ,  H04B7/0626 ,  H04B7/063 ,  H04B17/336 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/006 ,  H04L5/14 ,  H04L27/0014 ,  H04W16/14 ,  H04W52/241 ,  H04W74/0833 ,  H04W84/045

Abstract: A medium reservation framework is disclosed for coexistence of coordinated and uncoordinated wireless networks in licensed spectrum and shared spectrum. The proposed medium reservation framework organically takes into account operating regimes with different numbers of Tx/Rx antennas per node, provides flexibility in trading off medium contention aggressiveness and power saving, leverages the inherent synchronization nature of NR, and covers both coordinated and uncoordinated operation scenarios. Various aspects of the medium reservation framework may be centered on one or more combinations of some basic building blocks, such as an operation grid, synchronization signals, and reservation messages, such as a reservation request signal (RRQ) and one or more a reservation response signals (RRS).