公开(公告)号：US12237994B2

公开(公告)日：2025-02-25

申请号：US17980419

申请日：2022-11-03

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Juan Montojo ,  Tamer Kadous ,  Junyi Li ,  Xiaoxia Zhang ,  Jing Sun ,  Taesang Yoo ,  Siddhartha Mallik

IPC: H04L12/28 ,  H03M13/09 ,  H04B7/06 ,  H04B7/216 ,  H04B17/24 ,  H04B17/318 ,  H04L5/00 ,  H04L12/18 ,  H04L41/0668 ,  H04L45/16 ,  H04W24/08 ,  H04W52/14 ,  H04W52/16 ,  H04W52/24 ,  H04W52/34 ,  H04W52/38 ,  H04W52/42 ,  H04W52/50 ,  H04W52/54 ,  H04W52/56 ,  H04W72/044 ,  H04W72/20 ,  H04W72/21 ,  H04W72/52 ,  H04W72/53 ,  H04W72/54 ,  H04W76/22 ,  H04L1/00 ,  H04L1/1829 ,  H04W24/02 ,  H04W24/04 ,  H04W48/08 ,  H04W72/12 ,  H04W76/19 ,  H04W92/20

Abstract: Various aspects of the disclosure relate to beam information for independent links. For example, beam information for one link may be sent on at least one other link. 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, one link can indicate beam switching for at least one other link. In some scenarios, one link can indicate link recovery for at least one other link. In some scenarios, one link can indicate link failure for at least one other link.

公开(公告)号：US11799532B2

公开(公告)日：2023-10-24

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 ,  H04W72/23

CPC classification number: H04B7/0626 ,  H04B7/0643 ,  H04L1/0026 ,  H04W24/10 ,  H04W72/23

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：US11716751B2

公开(公告)日：2023-08-01

申请号：US15488018

申请日：2017-04-14

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/56 ,  H04W16/14 ,  H04L5/00 ,  H04W74/00 ,  H04W74/08

CPC classification number: H04W72/56 ,  H04L5/0048 ,  H04W16/14 ,  H04W74/006 ,  H04W74/0833 ,  H04W74/0808

Abstract: A method and apparatus for wireless communications are described. The method and apparatus may include transmitting at least one frame that includes a first acquisition interval associated with a first operator and one or more first transmission opportunities having a guarantee interval for the first operator, and a second acquisition interval associated with a second operator different from the first operator and one or more second transmission opportunities having a guarantee interval for the second operator, the first acquisition interval and the one or more first transmission opportunities nonoverlapping with the second acquisition interval and the one or more second transmission opportunities.

公开(公告)号：US11683833B2

公开(公告)日：2023-06-20

申请号：US16049313

申请日：2018-07-30

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Taesang Yoo ,  Siddhartha Mallik ,  Tamer Kadous

IPC: H04W74/08 ,  H04W72/0446 ,  H04W72/044 ,  H04W16/14

CPC classification number: H04W74/0808 ,  H04W72/0446 ,  H04W16/14 ,  H04W72/046 ,  H04W74/0816

Abstract: Wireless communications systems and methods related to considering channel variations for medium sharing in a spatial domain are provided. A first wireless communication device transmits one or more reservation response signals indicating spatial channel information in response to a reservation request for a transmission opportunity (TXOP) in a frequency spectrum. The first wireless communication device receives, from a second wireless communication device, a communication signal from a first spatial subspace during the TXOP based on the reservation request. In one embodiment, the first wireless communication device may repeat a transmission of the reservation response signal after transmitting a portion of the communication signal. In another embodiment, the first wireless communication device may include a channel variation parameter in the reservation response signal.

公开(公告)号：US10893509B2

公开(公告)日：2021-01-12

申请号：US15012541

申请日：2016-02-01

Applicant: QUALCOMM Incorporated

Inventor： Siddhartha Mallik ,  Jelena Damnjanovic ,  Taesang Yoo

IPC: H04W72/04 ,  H04L1/18

Abstract: Methods, systems, and devices are described for wireless communication. A transmitting device may send a signal including multiple transport blocks corresponding to multiple simultaneous hybrid automatic repeat request (HARQ) processes. Additional control information may be used to support the multiple simultaneous HARQ processes. For instance, the additional control information may indicate the number of available HARQ processes, an activity state for each HARQ process (e.g., active new data, active retransmission, or inactive), and the redundancy versions of each HARQ process. In some cases, the additional control information may be included in a downlink grant. A receiving device may respond with an acknowledgement or negative acknowledgment (ACK/NACK) for each of the transport blocks. The transmitting device may identify a retransmission status for each HARQ process based on the ACK/NACKs, and transmit new redundancy versions (or new data) to the receiving device.

公开(公告)号：US10772125B2

公开(公告)日：2020-09-08

申请号：US16112444

申请日：2018-08-24

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Qingsi Wang ,  Siddhartha Mallik ,  Weiliang Zeng ,  Ahmed Sadek

IPC: H04W74/08 ,  H04B7/0456 ,  H04W74/00 ,  H04B7/06 ,  H04W72/04

Abstract: A method, apparatus, and computer-readable medium at a transmitting network device or a target network device in a listen-before-talk (LBT) session that employ a spatial LBT procedure is disclosed. The spatial LBT procedure takes into account multiple-input multiple-output (MIMO) configuration information in measuring an effective interference. Accordingly, the spatial LBT procedure enables the transmitting network device or the target network device to more accurately measure an interference and make a more accurate decision on whether a channel is clear, and thus improves the system-wide performance. Also, the spatial LBT procedure allows the transmitting network device or the target/receiving network device to adaptively adjust the LBT power detection threshold when the MIMO configuration is not available. This also enables the network devices to more accurately measure interference and make a more accurate decision on whether the channel is clear, especially when advanced MIMO technologies are deployed in 5G or beyond.

公开(公告)号：US10651961B2

公开(公告)日：2020-05-12

申请号：US16160949

申请日：2018-10-15

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Tao Luo ,  Yongbin Wei ,  Durga Prasad Malladi ,  Siddhartha Mallik ,  Xiaoxia Zhang ,  Hao Xu

IPC: H04W74/00 ,  H04W72/12 ,  H04W72/08 ,  H04J11/00

Abstract: Techniques are described for wireless communication. A first method includes receiving downlink control information for a first UE based at least in part on a group identifier associated with a NOMA group including the first UE and at least a second UE; and receiving a set of NOMA downlink transmissions at the first UE based at least in part on the downlink control information for the first UE. A second method includes receiving downlink control information for a first UE, the downlink control information for the first UE including an indication of at least a second UE; receiving downlink control information for the second UE based at least in part on the indication of at least the second UE; and receiving a set of NOMA downlink transmissions at the first UE based at least in part on the downlink control information for the first UE and the downlink control information for the second UE.

公开(公告)号：US10574565B2

公开(公告)日：2020-02-25

申请号：US15659604

申请日：2017-07-25

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Juan Montojo ,  Tamer Kadous ,  Junyi Li ,  Xiaoxia Zhang ,  Jing Sun ,  Taesang Yoo ,  Siddhartha Mallik

IPC: H04L12/28 ,  H04L12/761 ,  H03M13/09 ,  H04L12/18 ,  H04W72/04 ,  H04W72/08 ,  H04W72/12 ,  H04L5/00 ,  H04B7/216 ,  H04W52/14 ,  H04W52/16 ,  H04W52/24 ,  H04W52/38 ,  H04W52/42 ,  H04W52/50 ,  H04W52/56 ,  H04L12/24 ,  H04W76/22 ,  H04W24/08 ,  H04W24/02 ,  H04W76/19 ,  H04W24/04 ,  H04W48/08 ,  H04W92/20

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：US10542556B2

公开(公告)日：2020-01-21

申请号：US15709086

申请日：2017-09-19

Applicant: QUALCOMM Incorporated

Inventor： Siddhartha Mallik ,  Anastasios Stamoulis ,  Juan Montojo

IPC: H04W88/02 ,  H04W72/12 ,  H04L5/00 ,  H04L27/26 ,  H04W88/08

Abstract: Certain aspects of the present disclosure provide techniques for MCS and/or rank selection for UE jointly served by BSs in a CoMP cluster. As described herein, MCS and/or rank selection may be based, at least in part, on the inter-cluster interference and intra-cluster interference experienced by the UE. According to aspects, a CoMP scheduler may assign a UE served by BSs in a CoMP cluster to one of a first group of UEs or a second group of UEs based, at least in part, on inter-cluster and intra-cluster interference experienced by the UE. The scheduler may assign at least one of a MCS or rank selection to the UE based, at least in part, on the assigned group. The scheduler may provide an indication, to one or more BSs in the CoMP cluster, of the at least one MCS or rank selection assigned to the UE.

公开(公告)号：US10484212B2

公开(公告)日：2019-11-19

申请号：US16041436

申请日：2018-07-20

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Dinkar Vasudevan ,  Seyedkianoush Hosseini ,  Jing Sun ,  Xiaoxia Zhang ,  Siddhartha Mallik ,  Juan Montojo

IPC: H04L12/28 ,  H04L25/03 ,  H04B17/14 ,  H04L27/34 ,  H04L12/703 ,  H04B7/024 ,  H04L25/02 ,  H04B17/11 ,  H04B17/30 ,  H04B17/309

Abstract: Wireless communications systems and methods related to over-the-air uplink-downlink (UL-DL) reciprocity calibration. A central unit transmits downlink (DL) calibration reference signal (RS) and a calibration request. The central unit receives, in response to the calibration request, a first uplink (UL) calibration RS and a first DL channel estimate associated with a first transmission point (TP) and a first wireless communication device. The central unit transmits a DL coordinated multipoint (CoMP) joint transmission signal according to an uplink-downlink (UL-DL) reciprocity calibration. The UL-DL reciprocity calibration is based on at least a first UL channel estimate based on the first UL calibration RS, the first DL channel estimate, a second UL channel estimate associated with a second TP and the first wireless communication device, and a second DL channel estimate associated with the second TP and the first wireless communication device.