公开(公告)号：US11272504B2

公开(公告)日：2022-03-08

申请号：US16654968

申请日：2019-10-16

Applicant: QUALCOMM Incorporated

Inventor： Navid Abedini ,  Wanshi Chen ,  Muhammad Nazmul Islam ,  Jianghong Luo ,  Luca Blessent ,  Tao Luo ,  Junyi Li

IPC: H04W72/04 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described that provide for timing adjustments that may be used in communications between wireless devices in a wireless communications system and signaling of such timing adjustments using physical layer signaling (e.g., layer 1 (L1) signaling). A first timing adjustment may be provided by a parent node to one or more associated child nodes that corresponds to a propagation delay between the parent node and its control node or a relay node through which the parent node communicates with a core network. In some cases, the physical layer signaling used to transmit the first timing adjustment may be a reference signal transmission, a downlink control information transmission, or any combination thereof.

公开(公告)号：US11265865B2

公开(公告)日：2022-03-01

申请号：US16829742

申请日：2020-03-25

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04W72/14

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a node in a multi-hop network may receive a configuration that indicates a first set of physical downlink control channel (PDCCH) resources dedicated to PDCCH monitoring by the node, a second set of PDCCH resources dedicated to PDCCH transmission by the node, and a third set of PDCCH resources permitted to be configured for either PDCCH monitoring by the node or PDCCH transmission by the node. The node in a multi-hop network may configure a resource of the third set of PDCCH resources for one of PDCCH monitoring or neither PDCCH monitoring nor PDCCH transmission based at least in part on an initial state associated with the resource. Numerous other aspects are provided.

公开(公告)号：US11240801B2

公开(公告)日：2022-02-01

申请号：US16671073

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: H04W72/12 ,  H04W72/04 ,  H04L5/26 ,  H04W52/14 ,  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：US11240681B2

公开(公告)日：2022-02-01

申请号：US17092816

申请日：2020-11-09

Applicant: QUALCOMM Incorporated

Inventor： Jianghong Luo ,  Navid Abedini ,  Karl Georg Hampel ,  Junyi Li ,  Luca Blessent ,  Tao Luo ,  Naeem Akl

IPC: H04W16/26 ,  H04B7/155 ,  H04W36/00 ,  H04W48/10 ,  H04W8/00 ,  H04W88/04

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques provide for a first IAB node determining an adjustment to at least one parameter corresponding to a cell coverage of the first IAB node based at least in part on a geographic proximity of a cell relative to the first IAB node. For example, the first IAB node may determine to adjust the parameters based reference signal measurements, signal quality measurements (e.g., received from child nodes or user equipments (UEs)), etc. In another example, the first IAB node may receive an instruction from a central unit (CU) of the IAB network to adjust the at least one parameter. The first access node may transmit an indication of the adjustment to the at least one parameter. For example, the first access node may signal the adjustments to the CU, child IAB nodes, UEs and/or, other IAB nodes.

公开(公告)号：US11184869B2

公开(公告)日：2021-11-23

申请号：US16447681

申请日：2019-06-20

Applicant: QUALCOMM Incorporated

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

IPC: H04W56/00 ,  H04W74/08

Abstract: An intermediary base station supporting mobile terminal (MT) functionality and/or a user equipment (UE) may receive a time alignment (TA) command and associated timer value from one or more distributed units (DUs) and/or a central unit (CU) of a parent base station. The TA command and timer value may be based on an experienced or potential timer expiration associated with a TA of a communication link. The TA command may specify an updated TA value and a timer reset for scheduling communications on the communication link. In some examples, the TA command may be in response to a TA command request provided by the MT or UE on allocated resources or configurations indicated by the parent base station. In other cases, the TA command may be in response to a random access procedure on allocated resources or configurations indicated by the parent base station.

公开(公告)号：US11160041B2

公开(公告)日：2021-10-26

申请号：US16407686

申请日：2019-05-09

Applicant: QUALCOMM Incorporated

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

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

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless node may receive, from a second wireless node, a first type of timing advance indicator, wherein the first type of timing advance indicator is associated with a first type of connection associated with a first group of wireless nodes, of a network, that includes the first wireless node and the second wireless node and is different from a second type of timing advance indicator used for a second type of connection associated with a second group of wireless nodes of the network. In some aspects, the first wireless node may synchronize a timing configuration of the first wireless node based at least in part on the first type of timing advance indicator. Numerous other aspects are provided.

公开(公告)号：US20210321361A1

公开(公告)日：2021-10-14

申请号：US17223392

申请日：2021-04-06

Applicant: QUALCOMM Incorporated

Inventor： Navid Abedini ,  Jianghong Luo ,  Ozcan Ozturk ,  Wanshi Chen ,  Tao Luo ,  Gavin Bernard Horn

IPC: H04W68/00 ,  H04W72/04 ,  H04W72/12 ,  H04W24/10 ,  H04W8/08 ,  H04W8/24

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a first device may be in communication with a second device and may receive, from the second device, DCI in a downlink control channel and a message in a downlink shared channel. The message in the downlink shared channel may include an indication of a system information update that is relevant to the first device and may include information relating to one or more system information parameters that are updated. The first device may determine the system information update based on the DCI and the indication in the message and may acquire system information accordingly. The first device may update the system information of the first device based on the acquired system information update and may communicate with the second device using the updated system information.

公开(公告)号：US11129224B2

公开(公告)日：2021-09-21

申请号：US16562320

申请日：2019-09-05

Applicant: QUALCOMM Incorporated

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

IPC: H04W76/18 ,  H04B7/14 ,  H04L12/24 ,  H04W76/38 ,  H04W72/12 ,  H04W76/15

Abstract: A relay node supporting mobile terminal (MT) functionality and distributed unit (DU) functionality may receive a timing advance (TA) value for uplink synchronization associated with a timing alignment timer from a parent node. In some cases, the timing alignment timer may expire prior to the relay node receiving a next TA value. Upon expiration of the timing alignment timer, the relay node may initiate a second timer (e.g., a transition timer) associated with the transitioning of a DU entity of the relay node to a DU transition state. The DU transition state is associated with certain DU behavior for serving child nodes while the transition timer is active. Configuration of the DU transition state may be identified by the relay node, or received from a parent node. In cases where the transition timer expires prior to receiving a next TA value, the DU may declare a loss of uplink synchronization.

公开(公告)号：US11089622B2

公开(公告)日：2021-08-10

申请号：US16418824

申请日：2019-05-21

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/12 ,  H04W72/08 ,  H04W24/10 ,  H04L1/00

Abstract: A base station central unit (CU) may receive a measurement report from one or more user equipments (UEs). The CU may identify a scheduling plan indication (SPI) for one or more scheduling nodes in a network, based at least in part on the received measurement reports. The SPI may specify a pattern of scheduling states, over a period of time, to be used by the one or more scheduling nodes to schedule communication resources for one or more UEs in the network. The scheduling states may (e.g., based on an interference profile determined from the received measurement reports) specify UEs or other communication resources for transmission scheduling decisions made by the scheduling nodes, or may specify beam patterns for beamforming procedures performed by the scheduling nodes. In some cases, the scheduling nodes may identify tentative SPIs, which the CU may pass amongst other scheduling nodes for distributed scheduling coordination schemes.

公开(公告)号：US11088729B2

公开(公告)日：2021-08-10

申请号：US16852767

申请日：2020-04-20

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Jianghong Luo ,  Arumugam Chendamarai Kannan

IPC: H04B7/02 ,  H04B7/024 ,  H04W76/15 ,  H04W76/11 ,  H04L5/00

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for providing quasi-colocation (QCL) signaling for reference signals (RS) and channels across scenarios involving multiple cells, such as coordinated multipoint (CoMP) scenarios in which multiple transmit receive points (TRPs) or integrated access and backhaul (IAB) nodes each have their own cell ID.