公开(公告)号：US20210235345A1

公开(公告)日：2021-07-29

申请号：US17158635

申请日：2021-01-26

Applicant: QUALCOMM Incorporated

Inventor： Jianghong LUO ,  Navid ABEDINI ,  Luca BLESSENT ,  Naeem AKL ,  Tao LUO ,  Karl Georg HAMPEL ,  Junyi LI

IPC: H04W36/08 ,  H04W36/16

Abstract: Aspects of the present disclosure provide techniques switching a communication link for wireless systems with multiple parents, such as an Integrated Access and Backhaul (IAB) network or other type of network. In some cases, a node determines a partition of a number of desired guard symbols between a first parent node and a second parent node; sends, to the first parent node and to the second parent node, at least one indication of a partitioned number of the desired guard symbols for switching between the first parent node and the second parent node; receives at least one indication of a number of provided guard symbols from the first and second parent nodes; and switches a communication link from the first parent node to the second parent node in accordance with the at least one indication of provided guard symbols by the first parent node and the second parent node.

公开(公告)号：US20210227544A1

公开(公告)日：2021-07-22

申请号：US17151049

申请日：2021-01-15

Applicant: QUALCOMM Incorporated

Inventor： Jianghong LUO ,  Navid ABEDINI ,  Luca BLESSENT ,  Karl Georg HAMPEL ,  Naeem AKL ,  Tao LUO ,  Junyi LI

IPC: H04W72/04 ,  H04L27/26

Abstract: Aspects relate to enhancing the provision of gaps at transitions between resources allocated for communication on access links and resources allocated for communication on backhaul links. In some examples, a child integrated access backhaul network (IAB) node may transmit a message to a parent IAB node requesting a number of guard symbols to provide a gap at transitions. In some examples, the parent IAB node may transmit the number of guard symbols provided at transitions to the child IAB node. The parent IAB node, child IAB node, and/or an IAB donor node central unit may further identify a subcarrier spacing associated with the number of guard symbols.

公开(公告)号：US20210194657A1

公开(公告)日：2021-06-24

申请号：US17125550

申请日：2020-12-17

Applicant: QUALCOMM Incorporated

Inventor： Navid ABEDINI ,  Jianghong LUO ,  Tao LUO ,  Luca BLESSENT ,  Karl Georg HAMPEL ,  Junyi LI

IPC: H04L5/00

Abstract: Aspects described herein relate to quasi co-location (QCL) indications in an integrated access and backhaul (IAB) system. In an example, an IAB node may determine a spatial relation between a first communication of a DU entity and a second communication of one of the DU entity or a co-located MT entity. The IAB node may further configure a beam of at least one of the MT or the DU based on the determined spatial relation. The IAB node may further communicate using the beam with at least one entity.

公开(公告)号：US20210068066A1

公开(公告)日：2021-03-04

申请号：US17002560

申请日：2020-08-25

Applicant: QUALCOMM Incorporated

Inventor： Navid ABEDINI ,  Luca BLESSENT ,  Muhammad Nazmul ISLAM ,  Jianghong LUO ,  Karl Georg HAMPEL ,  Tao LUO ,  Junyi LI

IPC: H04W56/00

Abstract: Aspects provide for autonomous adjustment of the uplink and downlink transmission timing in wireless communication networks. A radio access network (RAN) entity (e.g., a scheduling entity, such as a base station or parent integrated access backhaul (IAB) node, or a centralized network node, such as an IAB donor node central unit) may provide support to a scheduled entity (e.g., a user equipment (UE) or child IAB node) to operate in an autonomous time adjustment (ATA) mode to autonomously adjust its uplink transmission timing to compensate for the change in downlink reception timing. The RAN entity may generate ATA mode information related to the ATA mode for the scheduled entity and transit the ATA mode information to the scheduled entity.

公开(公告)号：US20210059015A1

公开(公告)日：2021-02-25

申请号：US16995089

申请日：2020-08-17

Applicant: QUALCOMM Incorporated

Inventor： Jianghong LUO ,  Junyi LI ,  Karl Georg HAMPEL ,  Navid ABEDINI ,  Luca BLESSENT ,  Tao LUO ,  Naeem AKL

IPC: H04W88/14 ,  H04W76/11 ,  H04W76/27 ,  H04W80/02 ,  H04W72/04 ,  H04W68/00 ,  H04W56/00

Abstract: An apparatus receives an indication of a Physical Cell Identifier (PCI) change for a serving integrated access and backhaul (IAB) node and uses the new PCI value for receiving communication from the serving IAB node based on the indication of the PCI change. The apparatus may comprise a user equipment (UE) or a mobile termination (MT) of a child IAB node that is served by the IAB node.

公开(公告)号：US20210058835A1

公开(公告)日：2021-02-25

申请号：US16994998

申请日：2020-08-17

Applicant: QUALCOMM Incorporated

Inventor： Jianghong LUO ,  Junyi LI ,  Karl Georg HAMPEL ,  Navid ABEDINI ,  Luca BLESSENT ,  Tao LUO ,  Naeem AKL

IPC: H04W36/00 ,  H04W16/04 ,  H04W48/16

Abstract: A central entity determines a physical cell identifier (PCI) change of an integrated access and backhaul (IAB) node from a first PCI to a second PCI and sends the second PCI to the IAB node. In response to receiving the second PCI from the central entity, the IAB node changes from using the first PCI to using the second PCI for the IAB node.

公开(公告)号：US20210044958A1

公开(公告)日：2021-02-11

申请号：US16947496

申请日：2020-08-04

Applicant: QUALCOMM Incorporated

Inventor： Navid ABEDINI ,  Karl Georg HAMPEL ,  Jianghong LUO ,  Naeem AKL ,  Luca BLESSENT ,  Tao LUO ,  Junyi LI

IPC: H04W8/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may receive mobility state information associated with an integrated access backhaul (IAB) node. The mobility state information may include information associated with at least one of: a level of mobility of the IAB node, or a change in mobility of the IAB node. The wireless communication device may perform an operation based at least in part on the mobility state information associated with the IAB node. In some aspects, a wireless communication device may determine that mobility state information associated with an IAB node is to be transmitted, and may transmit the mobility state information associated with the IAB node based at least in part on the determination. Numerous other aspects are provided.

公开(公告)号：US20210029729A1

公开(公告)日：2021-01-28

申请号：US16937292

申请日：2020-07-23

Applicant: QUALCOMM Incorporated

Inventor： Navid ABEDINI ,  Jianghong LUO ,  Kapil GULATI ,  Luca BLESSENT ,  Tao LUO ,  Junyi LI ,  Wanshi CHEN

IPC: H04W72/12 ,  H04W72/04 ,  H04L5/00 ,  H04W76/27 ,  H04W88/14

Abstract: Aspects of the present disclosure provide techniques of allocating time resources (or slots) based on a flexible pattern that allows allocation of a set of non-continuous time slots resources in an integrated access and backhaul (IAB) system. In one example, the aggregation pattern may be indicated via a single downlink control information (DCI) message that carries explicit information regarding non-continuous time slot allocation. Features of the present disclosure may also include techniques to allow for early termination of transmission between the first node and the second node when the receiver (e.g., second node) successfully receives the data channel before the end of aggregated transmission. In such situation, the first node and the second node may cease transmission after reception of an acknowledgement (ACK) message that may allow the second node to utilize the subsequent time slots for communication with its own children on the next hop (e.g., third node).

公开(公告)号：US20210029025A1

公开(公告)日：2021-01-28

申请号：US16931970

申请日：2020-07-17

Applicant: QUALCOMM Incorporated

Inventor： Navid ABEDINI ,  Karl Georg HAMPEL ,  Jianghong LUO ,  Luca BLESSENT ,  Tao LUO ,  Junyi LI

IPC: H04L12/725 ,  H04W40/02

Abstract: In some aspects, a wireless node in a wireless multi-hop network may receive, from a central unit in the wireless multi-hop network, a configuration indicating that a first wireless interface between the wireless node and a first parent node of the wireless node is to be used for a first traffic type, and that a second wireless interface between the wireless node and a second parent node of the wireless node is to be used for a second traffic type; configure a first connection with the first parent node via the first wireless interface and a second connection with the second parent node via the second wireless interface based at least in part on the configuration; and transmit or receive a communication using the first connection or the second connection based at least in part on a traffic type of the communication.

公开(公告)号：US20200305128A1

公开(公告)日：2020-09-24

申请号：US16817422

申请日：2020-03-12

Applicant: QUALCOMM Incorporated

Inventor： Navid ABEDINI ,  Karl Georg HAMPEL ,  Luca BLESSENT ,  Jianghong LUO ,  Junyi LI ,  Tao LUO

IPC: H04W72/04 ,  H04W74/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a central unit (CU) may receive, from a distributed unit (DU), a first DU configuration. The CU may transmit to the DU, a second DU configuration to change a DU configuration from the first DU configuration to the second DU configuration, the first DU configuration being different from the second DU configuration. The DU may override the first DU configuration to communicate in accordance with the second DU configuration. Numerous other aspects are provided.