Qualcomm Incorporated

Jianghong Luo

Navid Abedini

Junyi Li

Tao Luo

Karl Georg Hampel

Luca Blessent

Naeem Akl

Muhammad Nazmul Islam

Juergen Cezanne

Sundar Subramanian

Ashwin Sampath

Jing X Sun

Xiaoxia Zhang

Hong Cheng

Wanshi Chen

Ozcan Ozturk

Bilal Sadiq

Vasanthan Raghavan

Kapil Gulati

Jung Ho Ryu

Sumeeth Nagaraja

Alessio Marcone

Luis Fernando Brisson Lopes

Andrzej F Partyka

Yan Zhou

Tianyang Bai

Raju Hormis

Ezgi Tekgul

Piyush Gupta

Xipeng Zhu

Aria Hasanzadezonuzy

Assaf Touboul

Raghu Narayan Challa

Xiaojie Wang

Valentin Alexandru Gheorghiu

Konstantinos Dimou

Samel Celebi

Alexei Yurievitch Gorokhov

Arumugam Chendamarai Kannan

Qian Zhang

Makesh Pravin John Wilson

Kiran Venugopal

Yavuz Yapici

Qijia Liu

Peter S Gaal

Juan Montojo

Sony Akkarakaran

Gavin Bernard Horn

Hung Dinh Ly

Gideon Shlomo Kutz

Igor Gutman

Ling Ding

Hemant Saggar

Ariel Yaakov Sagi

Philip David Coan

Naeem Aki

Tommy Azzino

Tac Luo

Aspects of the present disclosure provide techniques for inter-donor topology discovery in an Integrated Access and Backhaul (IAB) network during migration of an IAB-node. A method that may be performed by a first IAB-donor includes establishing a first signaling connection with an IAB-node, receiving an indication that the IAB-node has a second signaling connection with a second IAB-donor, and in response to receiving the indication: transferring, to the second IAB-donor, information related to the IAB-node, re-establishing traffic between the first IAB-donor and the IAB-node via a topology of the second IAB-donor, or any combination thereof.

Inter-donor topology discovery in integrated access and backhaul (IAB)

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a control node may receive, from a wireless node, a status report of an unlicensed band associated with an unlicensed channel access of the wireless node, wherein the status report indicates listen-before-talk (LBT) failures during the unlicensed channel access of the wireless node. The control node may transmit, to the wireless node, an updated configuration for unlicensed channel access based at least in part on the status report of the unlicensed band. Numerous other aspects are described.

Updating configurations for unlicensed channel access using status reports of an unlicensed band

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network entity may select a subset of channel state information reference signal (CSI-RS) ports from a CSI-RS resource associated with a two-dimensional antenna array. The subset of CSI-RS ports may be associated with an antenna subarray having a reduced size. The network entity may transmit an indication of a starting port of the subset of CSI-RS ports in supplemental configuration information. Numerous other aspects are described.

Starting port for antenna subarray

Methods, systems, and devices for wireless communications are described. A relay device operating in an unlicensed radio frequency (RF) spectrum band may receive a channel occupancy time (COT) indication from a first wireless device via a control message, a preamble sequence, or an on-off energy pattern, among other examples. Upon receiving the COT indication from the first wireless device, the relay device may perform a listen before talk (LBT) procedure. If the LBT procedure is successful, the relay device may relay signals between the first wireless device and the second wireless device. Otherwise, the relay device may refrain from relaying signals between the first wireless device and the second wireless device. The described techniques may enable the relay device to operate with greater efficiency and reduced power consumption. The described techniques may also improve the reliability of communications between the first wireless device and the second wireless device.

Techniques for smart repeater operations in unlicensed bands

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may transmit, based at least in part on using a sidelink with a second UE, a first indication of a first availability state associated with a sidelink air interface resource and detected by the first UE. The first UE may receive, based at least in part on using the sidelink, a second indication of a second availability state associated with the sidelink air interface resource, the second availability state not generated by the first UE. The first UE may select a duplex communication configuration based at least in part on the first availability state and the second availability state. The first UE may communicate with the second UE using the sidelink air interface resource based at least in part on the duplex communication configuration. Numerous other aspects are described.

Coordinated sidelink air interface resource selection for full-duplex communications

Methods, systems, and devices for wireless communications are described. Generally, the techniques described herein may support balancing of system usage costs with performance. For example, a user equipment (UE) may transmit a usage cost message indicating usage costs associated with each unique set of operating parameters supported by the UE, including a first set of operating parameters associated with a first usage cost and a second set of operating parameters associated with a second usage cost. Each set of operating parameters may further be associated with a respective quantity of receive beams of the UE for operating according to the respective set of operating parameters. Additionally, the UE may receive an indication for the UE to operate according to the first set of operating parameters or the second set of operating parameters based on the first usage cost and the second usage cost.

Techniques for sharing usage cost information

A relay supporting multiple relay modes is provided. The relay transmits capability information to a base station, the capability information indicating support for a first relay mode and a second relay mode. The relay determines a mode of operation, either on its own or based on an indication of a mode of operation from the base station, wherein the mode of operation comprises the first relay mode or the second relay mode. The relay communicates with at least one of the base station or another wireless device based at least in part on the determined mode of operation.

Remote unit with a configurable mode of operation

An integrated access and backhaul (IAB) node receives, from a parent IAB node, a time difference parameter for over-the-air (OTA) synchronization in an IAB network. The IAB node adjusts transmission or reception of the IAB node based on the time difference parameter for one of multiple types of IAB node alignment.

Signaling support for different timing cases in IAB nodes

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration indicating a threshold for layer 3 (L3) measurements missed within a measurement period and during inactive periods of a cell discontinuous transmission (DTX) pattern. The UE may perform an adjusted mobility event detection procedure based at least in part on a quantity of L3 mobility measurements missed within the measurement period satisfying the threshold. Numerous other aspects are described.

Techniques for layer 3 mobility measurement during cell discontinuous transmission

Methods, systems, and devices for wireless communications are described. A first network entity (e.g., a distributed unit (DU)) may receive, from a second network entity (e.g., a centralized unit (CU)), a control message indicating a common discontinuous reception (C-DRX) configuration associated with a set of user equipments (UEs) communicatively coupled to the first network entity, where the C-DRX configuration indicates a time period including an active duration and an inactive duration. The first network entity may then communicate with two or more of the set of UEs in accordance with the indicated C-DRX configuration during the active duration of the time period of the C-DRX configuration.

Techniques for discontinuous reception configurations for network energy savings

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a parent node in an integrated access and backhaul (IAB) network may transmit, to an IAB node having a mobile termination function (IAB-MT) and a distributed unit (IAB-DU), signaling indicating a set of restricted IAB-DU beams and associating the set of restricted IAB-DU beams with one or more IAB-MT beams, the set of restricted IAB-DU beams determined based on measurements related to interference caused by the IAB-DU and the IAB-MT performing a simultaneous operation in one or more simultaneous multiplexing modes. Additionally or alternatively, the parent node may perform scheduling for the IAB-MT based on signaling received from the IAB node that indicates beam-specific parameters related to a multiplexing capability for a beam pair that includes an IAB-MT beam and an IAB-DU beam associated with the IAB-MT beam. Numerous other aspects are provided.

Signaling enhancements for simultaneous multiplexing in an integrated access and backhaul network

Methods, systems, and devices for wireless communications are described. The network may manage access to a cell on a per-beam basis. The network may indicate, for a given beam, whether a user equipment (UE) is able to access the cell via the given beam. Accordingly, the UE may access a cell using a beam that is not barred for the UE. In some examples, control signaling may include a list of each beam associated with the cell and may indicate whether each beam is barred or accessible. In some examples, control signaling include a field indicating whether the particular beam on which the control signaling was transmitted is barred. In some examples, control signaling may indicate whether a cell is barred. The UE may interpret the indication of whether the cell is barred as indicating whether the beam on which the control signaling was transmitted is barred.

Beam specific network admission

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first integrated access and backhaul (IAB) donor central unit (CU) may transmit, to a second IAB donor CU, a resource configuration of a first cell served by an IAB node to initiate a migration of the IAB node from a first parent node to a second parent node serving a second cell associated with the second IAB donor CU. The first IAB donor CU may receive, from the second IAB donor CU, an indication that communications performed by the IAB node associated with the first cell will not conflict with communications with the second parent node serving the second cell. The first IAB donor CU may migrate the IAB node to the second parent node based at least in part on the indication. Numerous other aspects are described.

Migration of an integrated access and backhaul node

Aspects described herein relate to providing dynamic frequency division multiplexing (FDM) within a component carrier (CC) for use by integrated access and backhaul (TAB) nodes. A configuration can be communicated for each cell of the IAB node indicating multiple resource availability combinations with each resource availability combination corresponding to resource block (RB) sets over multiple slots. A downlink control information (DCI) indicating one resource availability combination of the multiple resource availability combinations for one or more cells of the IAB node can be communicated as well. The IAB node can communicate, in a slot, over one or more RB sets of the multiple configured RB sets in symbols indicated as available by the one resource availability combination.

Techniques for supporting dynamic frequency division multiplexing within carrier

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, an integrated access and backhaul (IAB) node may receive a data packet associated with a timing parameter. The IAB may insert a time stamp into the data packet, based at least in part on the timing parameter, the time stamp associated with a reference time that is known among one or more additional IAB nodes within a path associated with the data packet. Numerous other aspects are described.

Time stamps for data packets within an integrated access and backhaul network

Growing community of inventors

Skillman, NJ, United States of America

Jianghong Luo