公开(公告)号：US11956649B2

公开(公告)日：2024-04-09

申请号：US17261443

申请日：2018-07-28

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh Ly ,  Huilin Xu ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  Peter Gaal ,  Jay Kumar Sundararajan ,  Yeliz Tokgoz ,  Naga Bhushan ,  Yuwei Ren

IPC: H04W24/02 ,  H04B17/345 ,  H04L5/00 ,  H04W24/10

CPC classification number: H04W24/02 ,  H04B17/345 ,  H04L5/0048 ,  H04W24/10

Abstract: Certain aspects of the present disclosure provide techniques for remote interference mitigation between base stations using reference signals. Certain aspects provide a method for wireless communication by a first base station (BS). The method includes receiving a reference signal (RS) from a second BS. The method further includes performing interference measurement corresponding to interference from the second BS based on the RS being associated with the second BS.

公开(公告)号：US11595097B2

公开(公告)日：2023-02-28

申请号：US17429488

申请日：2020-02-15

Applicant: Qualcomm Incorporated

Inventor： Bo Chen ,  Yuwei Ren ,  Liangming Wu ,  Yu Zhang ,  Ruifeng Ma ,  Chenxi Hao ,  Renqiu Wang ,  Hao Xu

IPC: H04B7/02 ,  H04B7/06 ,  H04B7/0456 ,  H04L25/02

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may perform channel state information (CSI) measurements on one or more reference signal transmissions received from a base station. Based on the CSI measurements, the UE may generate a CSI report, and the UE may transmit the CSI report to the base station. In some cases, the generated CSI report may include a first portion and a second portion. The first portion may indicate whether the second portion of the CSI report includes full-band CSI feedback or partial-band CSI feedback. The second portion may provide the CSI feedback for one or more identified sub-bands. In some cases, the second portion may include a sub-band index indicating the identified sub-bands. Additionally or alternatively, the second portion may include a bitmap indicating a correspondence between multiple CSI feedback values and multiple corresponding sub-band indexes.

公开(公告)号：US11483775B2

公开(公告)日：2022-10-25

申请号：US17269337

申请日：2019-09-26

Applicant: Qualcomm Incorporated

Inventor： Huilin Xu ,  Seyedkianoush Hosseini ,  Yuwei Ren ,  Alexandros Manolakos ,  Yiqing Cao ,  Joseph Binamira Soriaga

IPC: H04W52/14 ,  H04W52/24 ,  H04W24/02 ,  H04L5/14 ,  H04J11/00

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for managing remote interference using a previously detected relationship between an aggressor base station and a victim base station. The described techniques provide for allocating reference signal sequences for various victim base stations to send to an aggressor base station. The victim base station may trigger the aggressor base station to perform reference signal monitoring based on the previously detected victim-aggressor relationship, and may transmit a reference signal carrying a unique identifier based on the triggering. The first base station may send a request that the second base station to transmit a reference signal for enabling the first base station to measure interference of a wireless channel, and performing interference mitigation techniques at the first base station, the second base station, or both, to mitigate the remote interference.

公开(公告)号：US11057877B2

公开(公告)日：2021-07-06

申请号：US16541864

申请日：2019-08-15

Applicant: QUALCOMM Incorporated

Inventor： Yuwei Ren ,  Huilin Xu ,  Alexandros Manolakos ,  Seyedkianoush Hosseini ,  Jay Kumar Sundararajan ,  Naga Bhushan ,  Hung Dinh Ly

IPC: H04L27/26 ,  H04L5/00 ,  H04W24/10 ,  H04W72/04 ,  H04L1/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitter may identify a set of resource elements on which to transmit a reference signal based at least in part on a numerology being used by the transmitter and at least one of a maximum system numerology or a minimum system numerology; and transmit the reference signal on the identified set of resource elements. In some aspects, a receiver may identify a set of resource elements from which to obtain a reference signal based at least in part on a numerology being used by the receiver and at least one of a maximum system numerology or a minimum system numerology; and obtain the reference signal from the identified set of resource elements. Numerous other aspects are provided.