公开(公告)号：US20220060960A1

公开(公告)日：2022-02-24

申请号：US17453762

申请日：2021-11-05

Applicant: QUALCOMM INCORPORATED

Inventor： Jung Ho Ryu ,  Navid Abedini ,  Junyi Li ,  Karl Georg Hampel ,  Muhammad Nazmul Islam ,  Sundar Subramanian ,  Jianghong Luo ,  Juergen Cezanne ,  Vasanthan Raghavan

IPC: H04W36/32 ,  H04W36/00 ,  H04L5/00 ,  H04W36/36 ,  H04W74/08

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may initiate handover from one base station to another. The handover procedure may not include random access channel (RACH) transmissions, and thus may be a localized RACH-less handover. The UE may initiate handover to a new base station based on the relative location of the UE and the new base station, some predetermined time, or based on the characteristics of the signals from each base station.

公开(公告)号：US11258575B2

公开(公告)日：2022-02-22

申请号：US16184864

申请日：2018-11-08

Applicant: QUALCOMM Incorporated

Inventor： Navid Abedini ,  Sundar Subramanian ,  Junyi Li ,  Durga Prasad Malladi ,  Karl Georg Hampel ,  Muhammad Nazmul Islam

IPC: H04L5/14 ,  H04B7/0404 ,  H04L5/16 ,  H04B7/06 ,  H04B7/0408 ,  H04L5/00 ,  H04W72/04 ,  H04B7/0452

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device may utilize different beam configurations for different signal types, traffic demand, path loss, capabilities of the wireless device or other wireless devices in the system, and the like. The wireless device also may be capable of determining different duplexing modes, which may be utilized in addition to the different beam configurations. The duplexing mode may be based on received measurement reports (e.g., from one or more reference signals) or in some instances, the duplexing mode may be determined by another node (e.g., a core network node, a base station) and transmitted to the wireless device.

公开(公告)号：US11252715B2

公开(公告)日：2022-02-15

申请号：US16671084

申请日：2019-10-31

Applicant: QUALCOMM Incorporated

Inventor： Jianghong Luo ,  Navid Abedini ,  Muhammad Nazmul Islam ,  Luca Blessent ,  Tao Luo ,  Junyi Li ,  Karl Georg Hampel

IPC: H04W72/04 ,  H04L5/26 ,  H04W52/14 ,  H04W72/12 ,  H04W84/04 ,  H04W88/04

Abstract: An access node may monitor for uplink and downlink resource release indications signaled by a parent access node and a child access node prior to scheduling a released resource. In some cases (e.g., when the child node is capable of half-duplex communications), the parent access node may determine to release a resource, and the child access node may determine to release a hard resource (e.g., a child node controlled resource). Receiving uplink and downlink resource release indications may enable the access node to schedule communication with the child node via a soft resource (e.g., a parent node controlled resource). Other aspects of the described techniques are directed to feedback support for a slot format indicator (SFI). The feedback from the access node may accept or reject the SFI based on an impact the SFI has on scheduling via a child link established with a child node of the access node.

公开(公告)号：US11251893B2

公开(公告)日：2022-02-15

申请号：US15365384

申请日：2016-11-30

Applicant: QUALCOMM Incorporated

Inventor： Navid Abedini ,  Libin Jiang ,  Shailesh Patil

IPC: H04J13/00 ,  H04W4/46 ,  H04L5/00 ,  H04L1/00 ,  H04W76/14 ,  H04W72/02 ,  H04W72/12 ,  H04L29/08 ,  H04W4/02 ,  H04W4/021 ,  H04W72/04

Abstract: During device-to-device communication between two devices, a communication transmitted from a first UE to a second UE may not be reliably received by the second UE if the first UE is traveling at high speed. Therefore, a travel speed of a transmitting UE may be considered in determining a transmission configuration. According to an aspect, the UE may determine a travel speed of the UE. The UE may determine, based on the travel speed of the UE, a transmission configuration of the UE for device-to-device communication. The UE may transmit the device-to-device communication based on the transmission configuration.

公开(公告)号：US20220022142A1

公开(公告)日：2022-01-20

申请号：US17357371

申请日：2021-06-24

Applicant: QUALCOMM Incorporated

Inventor： Navid Abedini ,  Junyi Li ,  Kapil Gulati ,  Qian Zhang ,  Yan Zhou ,  Tao Luo

IPC: H04W52/24 ,  H04B17/19

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may experience multiple types of self-interference (SI), perform interference measurement procedures, and may identify interference mitigation procedures. The UE may identify a configuration for performing SI measurements (SIMs), where the configuration indicates a first transmission power associated with a first transmission and a second transmission power associated with a second transmission, where the second transmission power is higher than the first transmission power. The UE may transmit the first transmission at the first transmission power and the second transmission at the second transmission power, where the first transmission is associated with a first repetition frequency and the second transmission is associated with a second repetition frequency. The UE may measure SI based on transmitting the first transmission and the second transmission.

公开(公告)号：US11229038B2

公开(公告)日：2022-01-18

申请号：US16534432

申请日：2019-08-07

Applicant: QUALCOMM Incorporated

Inventor： Jianghong Luo ,  Navid Abedini ,  Tao Luo ,  Muhammad Nazmul Islam ,  Junyi Li ,  Karl Georg Hampel

IPC: H04W72/12

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a central entity may determine a set of schedulable resources for a plurality of links associated with a plurality of nodes of a multi-link network; and may provide scheduling information to the plurality of nodes to schedule communication on the plurality of links based at least in part on determining the set of schedulable resources. In some aspects, a node of a network may determine an extended slot format indicator for the node based at least in part on a received extended slot format indicator of a parent node of the node and a received null adjust request from a child node of the node; may provide the determined extended slot format indicator to the child node; and may provide the received null adjust request to the parent node. Numerous other aspects are provided.

公开(公告)号：US20220007344A1

公开(公告)日：2022-01-06

申请号：US17476067

申请日：2021-09-15

Applicant: QUALCOMM Incorporated

Inventor： Bilal Sadiq ,  Sundar Subramanian ,  Muhammad Nazmul Islam ,  Juergen Cezanne ,  Navid Abedini ,  Tao Luo

IPC: H04W72/04 ,  H04L27/26 ,  H04W56/00 ,  H04L5/00

Abstract: Techniques are described for wireless communication. In one method, a user equipment (UE) receives a timing synchronization signal (TSS) and a physical broadcast channel (PBCH), with the TSS based at least in part on a timing of the TSS within a broadcast channel transmission time interval (BCH TTI); determines the timing of the TSS within the BCH TTI; and demodulates the PBCH based at least in part on the TSS. In another method, a base station allocates resources for a TSS and a PBCH within a BCH TTI; determines the TSS based at least in part on a timing of the TSS within the BCH TTI; and transmits, on the resources allocated for the TSS and the PBCH, the TSS and the PBCH, with the TSS transmitted as a demodulation reference signal (DMRS) for the PBCH on at least one port used to transmit the TSS and the PBCH.

公开(公告)号：US20210400721A1

公开(公告)日：2021-12-23

申请号：US17235116

申请日：2021-04-20

Applicant: QUALCOMM Incorporated

Inventor： Jianghong Luo ,  Xiaoxia Zhang ,  Jing Sun ,  Tao Luo ,  Junyi Li ,  Navid Abedini ,  Luca Blessent ,  Karl Georg Hampel

IPC: H04W74/08 ,  H04W80/02

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer storage media, for performing a common channel sensing procedure for transmissions via a mobile termination (MT) role or via a distributed unit (DU) role of an integrated access and backhaul (IAB) node, or both. In one aspect, the IAB node may obtain channel access for transmissions via the MT role or the DU role, or both, using the same channel sensing procedure. The IAB node may select a timing of a sensing slot for the common channel sensing procedure in accordance with a capability of the IAB node and a timing of the transmissions. The IAB node may initiate a channel occupancy time (COT) for the transmissions via the MT role or the DU role, or both, as a result of determining that a measured energy detection (ED) value satisfies an ED threshold.

公开(公告)号：US20210392650A1

公开(公告)日：2021-12-16

申请号：US17324668

申请日：2021-05-19

Applicant: QUALCOMM Incorporated

Inventor： Navid Abedini ,  Tao Luo ,  Qian Zhang ,  Yan Zhou ,  Kapil Gulati ,  Junyi Li

IPC: H04W72/08 ,  H04W74/08 ,  H04W52/36 ,  H04W72/04 ,  H04L5/16

Abstract: Methods, systems, and devices for wireless communications are described. A communication device may transmit a random access channel (RACH) signal using a transmit beam of a set of transmit beams. The RACH signal may include a RACH preamble. The communication device may receive, based on the transmitted RACH signal, a receive beam of a set of receive beams. The communication device may determine a level of self-interference of the received beam. For example, the communication device may measure the level of self-interference of the received beam based on the transmitted RACH signal including the RACH preamble. The communication device may operate in a mode based on the determined level of self-interference.

公开(公告)号：US20210385858A1

公开(公告)日：2021-12-09

申请号：US17320665

申请日：2021-05-14

Applicant: QUALCOMM Incorporated

Inventor： Navid Abedini ,  Wanshi Chen ,  Tao Luo ,  Xiaoxia Zhang ,  Luca Blessent ,  Junyi Li

IPC: H04W74/00 ,  H04W74/08 ,  H04W24/10 ,  H04W80/02

Abstract: Methods, systems, and devices for wireless communications are described. A child node may communicate in an integrated access and backhaul (IAB) communications system with a parent node and the parent node may transmit system information to the child node that may indicate one or more random access channel (RACH) procedure configurations such as a user equipment (UE)-specific RACH procedure configuration and a wireless backhaul-specific (e.g., TAB-specific) RACH procedure configuration. The child node may be configured to utilize the UE-specific RACH procedure configuration or the TAB-specific RACH procedure configuration such as if the child node meets one or more conditions or upon receiving an indication from the parent node. The child node may determine to use the UE-specific RACH procedure configuration for communicating with the parent node and may perform a RACH procedure with the parent node in accordance with the UE-specific RACH procedure configuration.