Qualcomm Incorporated

Luca Blessent

Navid Abedini

Jianghong Luo

Tao Luo

Junyi Li

Karl Georg Hampel

Naeem Akl

Muhammad Nazmul Islam

Xiaoxia Zhang

Jing X Sun

Ozcan Ozturk

Wanshi Chen

Luis Fernando Brisson Lopes

Andrzej F Partyka

Kapil Gulati

Alessio Marcone

Xipeng Zhu

Quaeed Motiwala

Brian K Butler

Samel Celebi

Yongbin Wei

Piyush Gupta

Qian Zhang

Edward George Tiedemann, Jr

Tao Chen

Mehmet Yavuz

Farhad Meshkati

Valentin Alexandru Gheorghiu

Chirag Sureshbhai Patel

Haitao Zhang

Raja Sekhar Bachu

Keith William Saints

Baaziz Achour

Vansh Pal Singh Makh

Qingxin (Daisy) Chen

Yan Zhou

Juergen Cezanne

Avneesh Agrawal

Paul E Bender

Parvathanathan Subrahmanya

Douglas Neal Rowitch

Roland Reinhard Rick

Da-shan Shiu

Farrokh Abrishamkar

Emilija Milorad Simic

Christopher Patrick

Nitin Kasturi

Chih-Ping Hsu

Christopher Cooper Riddle

Niranjan Nayak Ratnakar

Xiaoyong Li

Rahul A Apte

Christian Oliver Thelen

Senthilkumar Sundaram

Deepak Agarwal

Robert Fuchs

James Krysl

Orod Raeesi

Ashish Nagesh Desai

Abhishek Saurabh Sachidanand Sinha

Hyukjun Oh

Jiangxin Chen

Pushp Trikha

Michael Francis Garyantes

Shih-Yi Yeh

Naeem Aki

Tac Luo

Marjan Baghaie Abchuyeh

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 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

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, from a first IAB donor centralized unit (CU) via a first parent distributed unit (DU), a first indication to establish a first connection with a second parent DU associated with a second IAB donor CU. The IAB node may establish the first connection with the second parent DU. The IAB node may establish a second connection with the first IAB donor CU via the second parent DU, the first connection and the second connection forming a target path between the IAB node and the first IAB donor CU. Numerous other aspects are provided.

Handover command delivery via a target path in an integrated access and backhaul configuration

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a radio unit (RU) may transmit, to a controller of the RU, a message including an ordered list of coordinates corresponding to a plurality of antenna elements in an antenna array of the RU. The RU may receive, from the controller, an indication of one or more low-level endpoints associated with one or more activated antenna elements of the plurality of antenna elements. Numerous other aspects are described.

Configuration of radio unit antenna elements

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, an integrated access and backhaul (IAB) node may receive at least part of a resource pattern of a child IAB node associated with the IAB node. The resource pattern may indicate one or more configurations of one or more resources of the child IAB node. The IAB node may communicate with the child IAB node based on the at least part of the resource pattern. Numerous other aspects are provided.

Configuration of resource patterns for integrated access and backhaul

Aspects relate to establishing a signaling connection between a radio access network (RAN) node and a first scheduling entity. The RAN node may communicate in a dual connectivity (DC) mode of operation with the first scheduling entity (e.g., a secondary gNB) using a first radio access technology (RAT) and with a second scheduling entity (e.g., a master eNB) using a second RAT. The RAN node and the first scheduling entity may support sending information for a first signaling connection between the RAN node and the first scheduling entity over a second signaling connection through the second scheduling entity (e.g., when the second signaling connection is more reliable than the first signaling connection). To establish the second signaling connection, the RAN node and the first scheduling entity may signal support for the second signaling connection and exchange Internet Protocol information for the second signaling connection.

Establishing a signaling connection in a wireless network

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.

Reporting a synchronization signal block configuration to a control unit

In some aspects, a node may configure whether a set of soft time resources is to be conditionally released or unconditionally released. The set of soft time resources may be configurable in a schedulable state or a non-schedulable state. The set of soft time resources may be schedulable subject to at most a directionality constraint when unconditionally released and, when conditionally released, being schedulable subject to: the directionality constraint and one or more conditions other than the directionality constraint if the set of soft resources is configured subject to the directionality constraint, or at least one of the directionality constraint or the one or more conditions other than the directionality constraint if the set of soft resources is not configured subject to the directionality constraint. The node may transmit a configuration that indicates whether the set of soft time resources is conditionally released or unconditionally released in the schedulable state.

Conditional release of soft resources in an integrated access and backhaul network

Methods, systems, and devices for wireless communication are described. A control node may transmit, to a first relay node, an indication to communicate according to a first resource configuration of a set of resource configurations, where each resource configuration of the set is associated with a respective resource block set and a respective time domain pattern. In some examples, each time domain pattern may indicate, for each symbol of a respective set of symbols associated with each time domain pattern, a resource type associated with availability of each symbol for communication by the first relay node with a second relay node. The first relay node may communicate according to the first resource configuration based on receiving the indication to communicate according to the first resource configuration.

Supporting adaptive frequency domain resource configuration for a relay node

Aspects generally relate to wireless communication. In some aspects, an integrated access and backhaul (IAB) node may receive a configuration that indicates multiple resource patterns for one or more slots, wherein each resource pattern corresponds to a different set of one or more resource block (RB) sets within the one or more slots, and wherein each resource pattern includes at least one of: a resource availability pattern that indicates at least one of hard resources, soft resources, or not available resources for one or more RB sets corresponding to that resource pattern, or a resource directionality pattern that indicates at least one of uplink resources, downlink resources, or flexible resources for the one or more RB sets corresponding to that resource pattern. The IAB node may apply a resource pattern, of the multiple resource patterns, based at least in part on the configuration. Numerous other aspects are described.

Indication of a resource pattern for frequency division multiplexing within a component carrier for a wireless multi hop network

The present disclosure relates to methods and devices for wireless communication at a wireless device or integrated access and backhaul (IAB) node. In one aspect, the wireless device may determine a frequency synchronization accuracy for the wireless device. The wireless device may also transmit an indication of the determined frequency synchronization accuracy for the wireless device. Additionally, the wireless device may determine an absolute frequency based on a combination of measurements from at least one synchronization source and a frequency of the wireless device, where the frequency synchronization accuracy is based on the absolute frequency.

Methods and apparatus for frequency synchronization communication

Methods, systems, and devices for wireless communications at a first wireless node in a wireless communications system are described. The techniques may enable a first wireless node (e.g., an integrated access and backhaul (IAB) node in an IAB system) to establish a communications link with a second wireless node. The first wireless node may receive, via a reception beam of the first wireless node, an interfering signal from an aggressor wireless node. The first wireless node may perform an interference measurement of the interfering signal at the first reception beam. The first wireless node may transmit a report indicating the interference measurement to the second wireless node. The second wireless node may schedule communications based on the interference measurement. In some examples, the report may indicate one or more parameters of the interfering signal. In some examples, the report may correspond to one or more beams.

Measurement report techniques for wireless communications systems

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless node may transmit, to a second wireless node, a cross-link interference (CLI) management configuration message including a permutation indicator, wherein the permutation indicator indicates that an order of slot formats is an uplink-flexible-downlink order of slot formats or indicates that the order of slot formats is a downlink-flexible-uplink order of slot formats; and communicate with one or more third wireless nodes in accordance with the order of slot formats indicated to the second wireless node. Numerous other aspects are provided.

Time division duplexing downlink-uplink configuration signaling

Growing community of inventors

Whitehouse Station, NJ, United States of America

Luca Blessent