公开(公告)号：US20140003267A1

公开(公告)日：2014-01-02

申请号：US13928202

申请日：2013-06-26

Applicant: QUALCOMM Incorporated

Inventor： Taesang YOO ,  Tao LUO ,  Siddhartha MALLIK

IPC: H04W24/10

CPC classification number: H04W24/10 ,  H04B7/0417 ,  H04B7/0632 ,  H04B17/24 ,  H04B17/309 ,  H04B17/327 ,  H04B17/336 ,  H04L1/0026 ,  H04L5/0053 ,  H04L5/0057 ,  H04L5/0073 ,  H04L5/0091

Abstract: Parameters associated with an interfering downlink transmission may be determined at the UE or may be signaled to the UE from an eNodeB. The parameters may be actual parameters or hypothetical parameters. Based on the parameters, the UE may determine a metric that reflects an amount of interference cancelled from the interfering data channel transmission. The UE determines a quasi-clean channel state information and/or interference efficiency based on the parameters. The UE may transmit the quasi-clean CSI and/or the interference efficiency to the eNodeB.

Abstract translation: 可以在UE处确定与干扰下行链路传输相关联的参数，或者可以从eNodeB向eNodeB发送信号给UE。 参数可以是实际参数或假设参数。 基于参数，UE可以确定反映从干扰数据信道传输中消除的干扰量的度量。 UE基于参数确定准清除信道状态信息和/或干扰效率。 UE可以向eNodeB发送准干净CSI和/或干扰效率。

公开(公告)号：US20230016995A1

公开(公告)日：2023-01-19

申请号：US17951061

申请日：2022-09-22

Applicant: QUALCOMM Incorporated

Inventor： Tao LUO ,  Juan MONTOJO ,  Tamer KADOUS ,  Junyi LI ,  Xiaoxia ZHANG ,  Jing SUN ,  Taesang YOO ,  Siddhartha MALLIK

IPC: H04L45/16 ,  H03M13/09 ,  H04L41/0668 ,  H04W52/38 ,  H04W52/56 ,  H04W52/50 ,  H04W52/16 ,  H04W72/12 ,  H04W72/04 ,  H04B7/216 ,  H04W52/54 ,  H04B7/06 ,  H04W76/22 ,  H04W52/34 ,  H04W52/14 ,  H04W72/08 ,  H04W52/42 ,  H04L5/00 ,  H04B17/24 ,  H04W52/24 ,  H04W24/08 ,  H04L12/18 ,  H04B17/318 ,  H04L1/00 ,  H04W48/08 ,  H04L1/18 ,  H04W76/19 ,  H04W92/20 ,  H04W24/02 ,  H04W24/04

Abstract: Various aspects of the disclosure relate to event triggers for independent links. For example, an event trigger may be based on measurements from multiple links. In some aspects, the independent links may involve a first device (e.g., a user equipment) communicating via different independent links with different devices (e.g., transmit receive points (TRPs) or sets of TRPs). For example, the first device may communicate with a second device (e.g., a TRP) via a first link and communicate with a third device (e.g., a TRP) via a second link. In some scenarios, an event trigger may be based on aggregated measurements from multiple links.

公开(公告)号：US20210306047A1

公开(公告)日：2021-09-30

申请号：US17344682

申请日：2021-06-10

Applicant: QUALCOMM Incorporated

Inventor： Siddhartha MALLIK ,  Tao Luo

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

Abstract: Channel state information (CSI) request procedures are disclosed for use in wireless communication systems. 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：US20200267681A1

公开(公告)日：2020-08-20

申请号：US16776871

申请日：2020-01-30

Applicant: QUALCOMM Incorporated

Inventor： Lorenzo FERRARI ,  Taesang YOO ,  Siddhartha MALLIK

IPC: H04W64/00 ,  H04B17/27 ,  H04B7/02 ,  G01S5/02

Abstract: Position determination of a user equipment (UE) is supported using channel measurements obtained for Wireless Access Points (WAPs), wherein the channel measurements are for Line of Sight (LOS) and Non-LOS (NLOS) signals. Based on WAP almanac information and the channel measurements, channel parameters indicative of positions of signal sources relative to a first position of a UE may be determined. Using the first position of the UE and an association of the signal sources with corresponding channel parameters, a second position of the UE may be determined. The position of the UE may be a probability density function. Additionally, position information for signal sources may be determined, such as a probability density function, as well as signal blockage probability and an antenna geometry and the WAP almanac information may be updated accordingly.

公开(公告)号：US20200228996A1

公开(公告)日：2020-07-16

申请号：US16837589

申请日：2020-04-01

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar DAMNJANOVIC ,  Juan MONTOJO ,  Siddhartha MALLIK

IPC: H04W16/14 ,  H04W74/08 ,  H04W76/11

Abstract: Certain aspects of the present disclosure provide techniques for protecting overhead and common channel transmissions in a NR shared spectrum system. A BS of a first operator may receive information regarding at least one overhead transmission associated with a wireless device of a second operator and may protect one or more overhead signal transmissions of the wireless device based, at least in part, on the received information. A UE may detect information associated with at least one overhead transmission from a wireless device associated with a first operator and may transmit the information regarding the detected overhead transmission to a BS associated with a second operator. A UE served by a BS associated with a first operator may detect a wireless device (e.g., another UE or a BS) associated with a second operator. The UE may report an identification of the wireless device to the BS.

公开(公告)号：US20200045556A1

公开(公告)日：2020-02-06

申请号：US16529691

申请日：2019-08-01

Applicant: QUALCOMM Incorporated

Inventor： Yisheng XUE ,  Aleksandar DAMNJANOVIC ,  Yongbin WEI ,  Siddhartha MALLIK ,  Tamer KADOUS

IPC: H04W16/14 ,  H04W72/12 ,  H04W74/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a device may select a plurality of channel access intervals during which the device is associated with a priority condition relative to another device for communications by the device, wherein each of the plurality of channel access intervals includes a respective contention interval and a respective transmission opportunity; and may transmit, during a contention interval of a first channel access interval of the plurality of channel access intervals, a signal that includes: channel occupancy information for the device for a first transmission opportunity of the first channel access interval, and information that identifies at least a portion of one or more subsequent channel access intervals, of the plurality of channel access intervals, associated with the device. Numerous other aspects are provided.

公开(公告)号：US20190199786A1

公开(公告)日：2019-06-27

申请号：US16290415

申请日：2019-03-01

Applicant: QUALCOMM Incorporated

Inventor： Siddhartha MALLIK ,  Ravi PALANKI ,  Durga Prasad MALLADI ,  Naga BHUSHAN

IPC: H04L29/08 ,  H04W8/00

CPC classification number: H04L67/104 ,  H04L67/1063 ,  H04L67/1068 ,  H04W8/005

Abstract: Techniques for performing peer discovery in a wireless network are described. A device may perform peer discovery to detect and identify other devices of interest. In an aspect, the device may perform peer discovery based on a hybrid mode that includes autonomous peer discovery and network-assisted peer discovery. In another aspect, the device may perform peer discovery based on a push mode and a pull mode. For the push mode, the device may occasionally transmit and/or receive a peer detection signal. For the pull mode, the device may transmit and/or receive a peer discovery request when triggered. In yet another aspect, the device may perform event-triggered peer discovery (e.g., for the pull mode). In yet another aspect, the device may perform peer discovery using both a downlink spectrum and an uplink spectrum. In yet another aspect, the device may transmit a peer detection signal in a manner to improve detection and/or increase payload.

公开(公告)号：US20190098656A1

公开(公告)日：2019-03-28

申请号：US16201685

申请日：2018-11-27

Applicant: QUALCOMM Incorporated

Inventor： Arumugam CHENDAMARAI KANNAN ,  Taesang YOO ,  Siddhartha MALLIK ,  Jelena DAMNJANOVIC ,  Yongbin WEI ,  Durga Prasad MALLADI

IPC: H04W72/12 ,  H04L12/807 ,  H04W28/20 ,  H04L5/14 ,  H04W72/04 ,  H04W88/02

Abstract: Methods and apparatuses for managing uplink scheduling for one or more user equipment served by a network entity in a wireless communications system are presented. For instance, an example method is presented that includes generating, by the network entity, an uplink bandwidth allocation map, the uplink bandwidth allocation map defining an uplink bandwidth allocation for at least one of the one or more user equipment for at least one of a plurality of uplink transmission window lengths. In addition, the example method includes transmitting the uplink bandwidth allocation map to at least one of the one or more user equipment.

公开(公告)号：US20180234830A1

公开(公告)日：2018-08-16

申请号：US15951126

申请日：2018-04-11

Applicant: QUALCOMM Incorporated

Inventor： Renqiu WANG ,  Siddhartha MALLIK ,  Ravi PALANKI ,  Naga BHUSHAN ,  Tao LUO ,  Durga Prasad MALLADI

IPC: H04W8/00 ,  H04W56/00 ,  H04W72/04 ,  H04L29/08 ,  H04W4/02 ,  H04L5/00 ,  H04W72/00 ,  H04W92/18 ,  H04W76/10

CPC classification number: H04W8/005 ,  H04L5/0053 ,  H04L67/104 ,  H04W56/002 ,  H04W56/0025 ,  H04W72/00 ,  H04W72/0453 ,  H04W76/10 ,  H04W92/18

Abstract: Techniques for performing peer discovery to enable peer-to-peer (P2P) communication are disclosed. In an aspect, a proximity detection signal used for peer discovery may be generated based on one or more physical channels and/or signals used in a wireless network. In one design, a user equipment (UE) may generate a proximity detection signal occupying at least one resource block based on a SC-FDMA modulation technique. In another design, the UE may generate a proximity detection signal occupying at least one resource block based on an OFDMA modulation technique. The UE may generate SC-FDMA symbols or OFDMA symbols in different manners for different physical channels. In yet another design, the UE may generate a proximity detection signal including a primary synchronization signal and a secondary synchronization signal. For all designs, the UE may transmit the proximity detection signal to indicate its presence and to enable other UEs to detect the UE.

公开(公告)号：US20180160313A1

公开(公告)日：2018-06-07

申请号：US15636372

申请日：2017-06-28

Applicant: QUALCOMM Incorporated

Inventor： Juan MONTOJO ,  Taesang YOO ,  Xiaoxia ZHANG ,  Aleksandar DAMNJANOVIC ,  Siddhartha MALLIK

IPC: H04W16/14 ,  H04W28/26 ,  H04W24/08

CPC classification number: H04W16/14 ,  H04W24/08 ,  H04W28/26 ,  H04W74/0808

Abstract: Wireless communications systems and methods related to reclaiming of resources in a shared frequency spectrum shared by multiple operators are provided. A first wireless communication device associated with a first operator of a plurality of operators identifies a transmission opportunity in a shared frequency spectrum shared by the plurality of operators, wherein the first operator has priority among the plurality of operators for accessing the shared frequency spectrum in the transmission opportunity. The first wireless communication device communicates with a second wireless communication device associated with the first operator, in the transmission opportunity without a prior reservation of the transmission opportunity.