Qualcomm Incorporated

Telefonaktiebolaget Lm Ericsson (publ)

Other

Wanshi Chen

Peter S Gaal

Hao Xu

Tao Luo

Juan Montojo

Tingfang Ji

Seyedkianoush Hosseini

Alberto Rico Alvarino

Yi Huang

Aleksandar Damnjanovic

Yongbin Wei

Wei Jennifer Yang

Shimman Arvind Patel

Jing X Sun

Durga Prasad Malladi

Heechoon Lee

Jing Lei

Huilin Xu

Renqiu Wang

Xiaoxia Zhang

Naga Bhushan

Krishna Kiran Mukkavilli

Alexandros Manolakos

Jelena Damnjanovic

Jing Jiang

Joseph Binamira Soriaga

Chao Wei

Hung Dinh Ly

Peter Pui Lok Ang

Kazuki Takeda

Srinivas Yerramalli

Seyed Ali Akbar Fakoorian

Hwan Joon Kwon

Xiao Feng Wang

Linhai He

Yu Zhang

Muhammad Sayed Khairy Abdelghaffar

Le Liu

Gabi Sarkis

Wooseok Nam

Mostafa Khoshnevisan

Jay Kumar Sundararajan

Ahmed Attia Abotabl

Gokul Sridharan

Ayan Sengupta

Wei Zeng

Junyi Li

Umesh Phuyal

Aamod Dinkar Khandekar

Sony Akkarakaran

Yuchul Kim

Haitong Sun

Alexei Yurievitch Gorokhov

Kapil Bhattad

Kapil Gulati

Gavin Bernard Horn

Iyab Issam Sakhnini

Sudhir Kumar Baghel

Navid Abedini

Taesang Yoo

Yan Zhou

Ozcan Ozturk

Mahmoud Taherzadeh Boroujeni

Muhammad Nazmul Islam

John Edward Smee

Yang Yang

Ahmed Elshafie

Xipeng Zhu

Masato Kitazoe

Jianghong Luo

Makesh Pravin John Wilson

Bilal Sadiq

Tien Viet Nguyen

Shuanshuan Wu

Shailesh Patil

Ravi Palanki

Luca Blessent

Sai Yiu Duncan Ho

Karl Georg Hampel

Arnaud Meylan

Arumugam Chendamarai Kannan

Yisheng Xue

Rath Vannithamby

Yan Li

Jun Ma

Parag Arun Agashe

Jung Ho Ryu

Nathan Edward Tenny

Sven Fischer

Sumeeth Nagaraja

Rajat Prakash

Juergen Cezanne

Piyush Gupta

Qian Zhang

Assaf Touboul

Kiran Venugopal

Srinivasan Balasubramanian

Aziz Gholmieh

Sundar Subramanian

Jun Wang

Aspects of the present disclosure provide techniques for channel state information (CSI) reporting in multiple transmitter receiver point (mTRP) scenarios.

Methods for PMI, RI and port indexing of CSI for multiple transmitter receiver points

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a multi-cell downlink control information (MC-DCI) that via a scheduling cell may schedule communications for more than one scheduled cells. The overhead of a DCI (e.g., an MC-DCI) may be reduced by compressing or removing the carrier indication field (CIF). For example, radio resource control signaling may indicate, to a UE, a DCI payload size, control channel elements (CCE)s, and/or physical downlink control channel (PDCCH) candidates per scheduled cell or per group of scheduled cells. If the DCI payload sizes, CCEs, and/or PDCCH candidates are different for the scheduled cells indicated in the radio resource control message, the UE may determine to which scheduled cell(s) a DCI received in a PDCCH monitoring occasion applies based on the payload size and/or CCEs of the PDCCH monitoring occasion without using a CIF.

Scheduled cell identification for multi-cell scheduling

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to monitor search spaces on a primary cell and an secondary cell in a carrier aggregation configuration. The UE may monitor the search spaces for control information according to a shared search space monitoring configuration. Based on the shared search space monitoring configuration, the UE may identify that the secondary cell is a scheduling cell and the primary cell is a scheduled cell (e.g., cross-carrier scheduling). The UE may monitor control channel candidates of search spaces on the primary cell and on the secondary cell for downlink control information messages scheduling data transmissions with the primary cell. In some examples, the cross-carrier scheduled communications may be configured according to a scheduling configuration, which may include one or more scheduling constraints.

Techniques for cross-carrier scheduling from a secondary cell to a primary cell

Certain aspects of the present disclosure provide techniques that may be used to help enable low latency communications between a user equipment (UE) and a base station (BS) using quick uplink channels that enable a reduced transmission time interval (TTI). An example method generally includes identifying a plurality of slots in a subframe, receiving a resource configuration for an uplink channel, wherein the resource configuration is associated with a first slot of the plurality of slots, determining a resource for transmitting the uplink channel in a second slot of the plurality of slots, wherein the resource is determined based on the resource configuration associated with the first slot of the plurality of slots, and transmitting the uplink channel in the second slot using the determined resource.

Uplink channel design for slot-based transmission time interval (TTI)

Wireless communications systems and methods related to beam failure detection (BFD) in a dormancy bandwidth part (BWP) are provided. A user equipment (UE) determines to operate in a dormancy mode for a cell of a wireless communication network. The UE operates in the dormancy mode for the cell of the wireless communication network, where the operating in the dormancy mode includes performing a beam failure detection (BFD) in a dormancy bandwidth part (BWP) based on a configuration. The configuration may include a control resource set (CORESET) configuration for the dormancy BWP.

Beam failure detection (BFD) in dormancy bandwidth part (BWP)

Apparatus, methods, processing systems, and computer readable mediums for beam management in multi-TRP scenarios are disclosed. An exemplary method generally includes receiving a channel state information reference signal (CSI-RS) resource configuration from at least one base station (BS) for one or more transmission hypotheses, wherein the CSI-RS resource configuration includes CSI-RS resources corresponding to at least a first downlink (DL) demodulation reference signal (DMRS)-port-group and a second DL DMRS-port-group, performing one or more CSI-RS measurements for the one or more transmission hypotheses based, at least in part on the CSI-RS resource configuration, and determining, for each of the one or more transmission hypotheses, a preferred reception beam for communicating with the at least one BS based, at least in part, on the one or more CSI-RS measurements.

Beam management enhancements for multi-TRP scenarios

An apparatus receives a configuration for a phase tracking reference signal (PT-RS). The apparatus then determines at least one of a time density or a frequency density for the PT-RS based on inter-slot repetition of a transmission. The apparatus then receives or transmits the PT-RS based on the at least one of the time density or the frequency density determined based on the inter-slot repetition of the transmission.

Phase tracking reference signal configuration for transmission repetitions

Certain aspects of the present disclosure generally relate to wireless communications, and more specifically, coverage enhancements for physical broadcast channel (PBCH). According to certain aspects, a method is provided for wireless communications by a user equipment (UE). The method generally includes receiving a physical downlink shared channel (PDSCH) transmission, receiving a different type downlink transmission, with transmit power boosted relative to the PDSCH transmission, receiving information regarding relative transmit power of the PDSCH transmission relative to a common reference signal (CRS) based on the transmit power of the different type downlink transmission, and processing the PDSCH transmission based on the information.

Coverage enhancements for physical broadcast channel (PBCH)

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a message indicating one or more communication patterns from a base station. The one or more communication patterns may indicate to the UE to adjust one or more parameters for transmitting an uplink communication during a set of time resources, a set of beams, a set of ports, or any combination thereof. During the resources indicated in the one or more communication patterns, the base station may estimate a cross link interference channel between the base station and a second base station. The one or more communication patterns may indicate a hopping pattern for each subband of a bandwidth part. The base station may configure the UE with a timing advance based on the message.

Signaling for inter-base station interference estimation

Certain aspects of the present disclosure provide techniques for reporting channel state information (CSI) with spatial and time domain compression.

Channel state information (CSI) with spatial and time domain compression

Certain aspects of the present disclosure provide techniques for cross-carrier feedback.

Cross carrier feedback

A method for wireless communication by a network node includes transmitting, to a group of user equipment (UEs), radio resource control (RRC) signaling to configure a function for enabling and disabling hybrid automatic repeat request (HARQ) feedback for a set of N instances of a multicast transport block (TB). The method also includes transmitting, to the group of UEs, the set of N instances of the multicast TB. The method further includes transmitting, to the group of UEs, a downlink control information (DCI) message on a group-common physical downlink control channel (PDCCH) with a cyclic redundancy check (CRC) scrambled by a group-common radio network temporary identifier (RNTI) configured for the group of UEs. The method also includes receiving, from one or more UEs of the group of UEs, a HARQ feedback message associated with one or more instances of the set of N instances after transmitting all N instances.

Hybrid automatic repeat request (HARQ) feedback control for multicast communications

Aspects of the disclosure relate to a wireless user equipment (UE) configured to receive a downlink in a network configured for full duplex communication. The UE receives from the network an indication of a maximum rank of an uplink from an interfering, aggressor UE. The UE measures interference of a signal from the aggressor UE, and based on the measurement, determines one or more rank values for the aggressor UE, less than or equal to the maximum rank. The UE may further determine one or more channel parameters for downlink transmissions the UE receives, corresponding to the determined rank values. The UE then transmits a channel state information (CSI) report that includes an indication of at least one of the one or more rank values for the aggressor UE. The CSI report may further include the determined channel parameters. Other aspects, embodiments, and features are also claimed and described.

Interference rank indication by a victim node in full duplex

Aspects of the disclosure relate to maintaining, defining, configuring and implementing a coverage enhancement mode defined for radio access network. A base station may maintain parameters that define multiple coverage enhancement modes in a lookup table and may select a first coverage enhancement mode from the two or more coverage enhancement modes for use with a first user equipment to accommodate use of one or more carrier frequencies, time or frequency duplexing mode, cell size, capabilities of the first user equipment or a channel measurements report of the first user equipment, and schedule a set of control and data channels to be used for communicating with the first user equipment using a first transmission scheme defined by first parameters associated with the first coverage enhancement mode. The set of control and data channels may include uplink control and data channels and downlink control and data channels.

Multi-mode configuration for coverage enhancements

Methods, systems, and devices for wireless communications are described, in which temporary reference signals may be configured for use in secondary cell (SCell) activation. A user equipment (UE) may perform wireless communications with a first serving cell supported by a base station, and may receive an indication that a SCell is to be activated. As a result of activation of the SCell, the UE may perform one or more measurements on a reference signal of the SCell that is being activated. The one or more measurements may be performed on a temporary reference signal of the SCell that has one or more parameters that are indicated to the UE with the SCell activation information. The one or more parameter may be indicated by downlink control information (DCI), one or more medium access control (MAC) control elements, implicit signaling, or any combinations thereof.

Reference signal configuration for secondary cell activation

Growing community of inventors

San Diego, CA, United States of America

Wanshi Chen