公开(公告)号：US20220117007A1

公开(公告)日：2022-04-14

申请号：US17492296

申请日：2021-10-01

Applicant: QUALCOMM Incorporated

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

IPC: H04W76/10 ,  H04W24/02 ,  H04W88/14

Abstract: Present disclosure provides techniques for migrating integrated access and backhaul (IAB) nodes from the source centralized unit (CU) to a target IAB-donor-CU of a base station. Features of the present disclosure achieve such migration by configuring the IAB distributed unit (IAB-DU)to establish F1-connection (F1-C) with the target IAB-donor-CU via the source path before the user equipment (UE) context transfer occurs. To this end, the source IAB-donor-CU may initiate an F1-C establishment between IAB-node DU and target IAB-donor-CU. The source IAB-donor-CU may do so by acting or presenting as an IAB-node-DU proxy to the target IAB-donor-CU. At the same time, the source IAB-donor-CU may act or present as a target-IAB-donor-CU proxy to the IAB-node-DU. Thus, in some cases, the source IAB-donor-CU may present as both the IAB-node-DU proxy (to the target IAB-donor-CU) and as a target-IAB-donor-CU proxy (to the IAB-node-DU).

公开(公告)号：US20220061002A1

公开(公告)日：2022-02-24

申请号：US17360811

申请日：2021-06-28

Applicant: QUALCOMM Incorporated

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

IPC: H04W56/00 ,  H04W24/10 ,  H04W72/04 ,  H04W72/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station distributed unit (DU) may configure a report that identifies a transmission timing within a radio frame for transmission of one or more cell-defining synchronization signal blocks (CD-SSBs) in a serving cell of the base station DU. The base station DU may transmit the report to a base station control unit. Numerous other aspects are provided.

公开(公告)号：US20210410031A1

公开(公告)日：2021-12-30

申请号：US17357631

申请日：2021-06-24

Applicant: QUALCOMM Incorporated

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

IPC: H04W36/08 ,  H04W36/12 ,  H04W74/08 ,  H04W76/14

Abstract: Aspects described herein relate to receiving, by a mobile termination (MT) function of an integrated access and backhaul (IAB) node, a first indication to migrate from a first IAB donor node associated with a first cell group and a first central unit (CU) to a second IAB donor node associated with a second cell group and a second CU, performing, by the IAB node and based at least in part on receiving the first indication, a first random access procedure to connect to the second cell group associated with the second IAB donor node, establishing, by the IAB node in addition to a first distributed unit (DU) function of the IAB node that serves a third cell group and based on performing the first random access procedure, a second DU function that serves a fourth cell group.

公开(公告)号：US20210378011A1

公开(公告)日：2021-12-02

申请号：US17081880

申请日：2020-10-27

Applicant: QUALCOMM Incorporated

Inventor： Jianghong LUO ,  Xiaoxia ZHANG ,  Jing SUN ,  Navid ABEDINI ,  Tao LUO ,  Luca BLESSENT ,  Junyi LI

IPC: H04W74/08 ,  H04W88/14 ,  H04L12/733 ,  H04W76/15 ,  H04W72/04

Abstract: Wireless communications systems and methods related to sharing channel occupancy time (COT) for a channel in an unlicensed 5G spectrum in an integrated access backhaul (IAB) network are provided. In some aspects, an IAB node of the IAB network may perform a channel access procedure to acquire the COT and share the COT with a parent IAB node and/or a child IAB node for the parent IAB node and/or child IAB node for the parent IAB node and/or child IAB node to share, or use the COT for communication, with a third IAB node different from the COT-initiating IAB node.

公开(公告)号：US20210367819A1

公开(公告)日：2021-11-25

申请号：US17223915

申请日：2021-04-06

Applicant: QUALCOMM Incorporated

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

IPC: H04L27/26 ,  H04W80/02 ,  H04W88/14 ,  H04W76/11

Abstract: Aspects of the present disclosure include methods, apparatuses, and computer readable media for receiving a medium access control (MAC) control element (CE) comprising at least a set of guard symbol values associated with a mobile termination (MT) and a distributed unit (DU), transitioning from first communication via one or more MT cells associated with the MT to second communication via one or more DU cells associated with the DU or from the second communication via the one or more DU cells associated with the DU to the first communication via the one or more MT cells associated with the MT during at least a guard symbol signaled by a guard symbol value of the set of guard symbol values; and transmitting or receiving information via the transitioned one or more MT cells or the transitioned one or more DU cells.

公开(公告)号：US20210360585A1

公开(公告)日：2021-11-18

申请号：US17224441

申请日：2021-04-07

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/00 ,  H04L5/14 ,  H04W72/04 ,  H04W68/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a child node may receive a message, from a serving or neighboring cell, that includes an indication of an intended time division duplex (TDD) configuration for the serving or neighboring cell. The indication may include downlink and uplink indicators for at least one slot used within the intended TDD configuration. Accordingly, the child node may determine a symbol to use within a TDD configuration for the child node, based at least in part on receiving the message. Numerous other aspects are provided.

公开(公告)号：US20210359829A1

公开(公告)日：2021-11-18

申请号：US17224721

申请日：2021-04-07

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/14 ,  H04L12/24

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first network node may transmit, to a second network node, a request for one or more intended time division duplex (TDD) configurations for one or more cells associated with at least one of the second network node or a third network node. Accordingly, the first network node may receive, from the second network node, an indication of the one or more intended TDD configurations. In some aspects, a first network node may receive, from a second network node, a request for one or more intended TDD configurations for one or more cells associated with at least one of the first network node or a third network node. Accordingly, the first network node may transmit, to the second network node, an indication of the one or more intended TDD configurations. Numerous other aspects are provided.

公开(公告)号：US20210273836A1

公开(公告)日：2021-09-02

申请号：US17166811

申请日：2021-02-03

Applicant: QUALCOMM Incorporated

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

IPC: H04L27/26 ,  H04W88/14 ,  H04W68/00 ,  H04W80/02 ,  H04W76/27

Abstract: An integrated access and backhaul (IAB) node may receive a parent knowledge message, the parent knowledge message indicating whether a parent IAB node of the child IAB node has received an optional signaling message, determining to transition between first resources and second resources at a transition time, the first resources being associated with use of a mobile termination of the child IAB node, the second resources being associated with use of the distributed unit of the child IAB node, and determine a number of guard symbols provided by the parent IAB node at the transition time based on whether the parent knowledge message indicates that the parent IAB node has received the optional signaling message.

公开(公告)号：US20210258948A1

公开(公告)日：2021-08-19

申请号：US17174151

申请日：2021-02-11

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04W72/12 ,  H04W72/08

Abstract: Aspects described herein relate to resource allocation in an integrated access and backhaul (IAB) system. In an example, the aspects include receiving, by a wireless node, an indication of not-available (NA) resources of a parent node, the NA resources corresponding to a first set of one or more resources configured at the parent node as being unavailable for uplink and downlink communications between the parent node and the wireless node, wherein the indication of NA resources of the parent node comprises an invalid time division duplex (TDD)-uplink-downlink configuration; and refraining, by the wireless node, from communicating with the parent node within the NA resources based on the indication of NA resources of the parent node.

公开(公告)号：US20210250898A1

公开(公告)日：2021-08-12

申请号：US17171648

申请日：2021-02-09

Applicant: QUALCOMM Incorporated

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

IPC: H04W68/00 ,  H04W72/04 ,  H04W48/12

Abstract: Aspects relate to using different paging techniques for different sets of scheduled entities. In some examples, different paging message configurations are assigned to different sets of scheduled entities. In some examples, different paging resources are assigned to different sets of scheduled entities. In some examples, different paging-radio network temporary identifiers (P-RNTIs) are assigned to different sets of scheduled entities. In some examples, different SI modification fields indicate SI changes for different sets of scheduled entities. In some examples, different sets of scheduled entities use different paging search spaces. In some examples, different sets of scheduled entities use different paging parameters.