Qualcomm Incorporated

Apple Inc.

Seyed Ali Akbar Fakoorian

Dawei Zhang

Wei Zeng

Haitong Sun

Hong He

Chunxuan Ye

Yushu Zhang

Oghenekome Oteri

Weidong Yang

Xiaoxia Zhang

Sigen Ye

Seyedkianoush Hosseini

Huaning Niu

Chunhai Yao

Wanshi Chen

Wei Jennifer Yang

Peter S Gaal

Jing X Sun

Jie Cui

Alberto Rico Alvarino

Mostafa Khoshnevisan

Hao Xu

Tao Luo

Yan Zhou

Renqiu Wang

Juan Montojo

Srinivas Yerramalli

Yang Tang

Jing Lei

Yi Huang

Xiao Feng Wang

Taesang Yoo

Muhammad Sayed Khairy Abdelghaffar

Sony Akkarakaran

Kazuki Takeda

Yongbin Wei

Hamed Pezeshki

Hwan Joon Kwon

Aleksandar Damnjanovic

Konstantinos Dimou

Krishna Kiran Mukkavilli

Yisheng Xue

Chih-Hao Liu

Madhavan Srinivasan Vajapeyam

Zhifei Fan

Manasa Raghavan

Aamod Dinkar Khandekar

Junyi Li

Piyush Gupta

Tamer Adel Kadous

Rajat Prakash

Zhibin Wu

Haijing Hu

Vinay Joseph

Tingfang Ji

Alexandros Manolakos

Jing Jiang

Wei Yang

Huilin Xu

Hua Wang

Ahmed Attia Abotabl

Siddhartha Mallik

Ankit Bhamri

Amir Aminzadeh Gohari

Ozcan Ozturk

Kapil Bhattad

Andrei Dragos Radulescu

Chih-Ping Li

Kirankumar Bhoja Anchan

Kapil Gulati

Hung Dinh Ly

Arumugam Chendamarai Kannan

Fangli Xu

Shimman Arvind Patel

Sarma V Vangala

Qiming Li

Yu Zhang

Peter Pui Lok Ang

Linhai He

Yuchul Kim

Umesh Phuyal

Srinivasan Balasubramanian

Sethuraman Gurumoorthy

Farhad Meshkati

Parvathanathan Subrahmanya

Xiang Chen

Ralf Rossbach

Joseph Binamira Soriaga

Gabi Sarkis

Yuqin Chen

Wei Zhang

Brian Clarke Banister

Ahmed Kamel Sadek

Michael Mao Wang

Pavan Kumar Vitthaladevuni

Qingjiang Tian

A user equipment (UE) is configured to perform channel estimation. The UE operates in a current channel estimation mode comprising either one of a first mode or a second mode, wherein the first mode comprises receiving first reference signals (RS) having a first RS overhead and wherein the second mode comprises receiving second reference signals (RS) having a second RS overhead, receives a network indication to switch from the current channel estimation mode to a new channel estimation mode comprising the other one of the first mode or second mode, transmits an acknowledgment to the network that the network indication was received and switches from the current channel estimation mode to the new channel estimation mode in accordance with the network indication.

Channel estimation using artificial intelligence

Systems and methods provide a channel state information (CSI) measurement based on measuring a demodulation reference signal (DMRS) for a physical downlink shared channel (PDSCH) transmission. A user equipment (UE) triggers measuring of a CSI reference signal (CSI-RS) from a base station. The UE triggers measuring of a DMRS for a PDSCH transmission from the base station. The UE generates a CSI report to report the CSI measurement, based on both the CSI-RS and the DMRS for the PDSCH transmission. The UE may then send the CSI report to report the CSI measurement to the base station.

Systems and methods for PDSCH based CSI measurement

A base station may transmit a message to a group of user equipments (UEs), directing the UEs to change their respective bandwidth parts (BWPs). For each of the UEs of the group, the message may include a corresponding new BWP. In response to receiving the message, each UE of the group may switch to the corresponding new bandwidth part. The message may be transmitted as part of a group common DCI message. The UE may signal its required minimum guard band size to the base station. Alternatively, the UE may respond to the message with an acknowledgement message. The base station may configure a virtual common downlink BWP for the group of UEs. The UEs drop transmission/reception repetitions that occurs during its BWP switch delay period.

Joint bandwidth part switching for a group of UEs

A user equipment (UE) is configured to receive a sounding reference signal (SRS) configuration from a network, wherein the SRS configuration comprises a 6 port SRS configuration. The UE is also configured to transmit, from each of the 6 ports, SRS on one or more SRS resources corresponding to the SRS configuration.

Codebook and non-codebook support for SRS with 6 ports

Methods and systems are disclosed for a UE to manage and measure intra-cell cross link interference (CLI) when served by a base station operating in full-duplex FDD. The signaling may indicate to a victim UE resources to measure to determine the level of CLI from aggressor UEs. The resources used for the CLI measurement may be resources not scheduled by the base station for use by the victim UE for downlink reception, but are scheduled for use by the aggressor UEs for transmitting uplink traffic or for transmitting reference signals used to characterize the uplink channel. The victim UE may report the CLI measurements to the base station for the base station to adjust scheduling of downlink resources to the victim UE. In one aspect, the signaling from the base station may indicate to the victim UE the locations of scheduled downlink symbols that may potentially be impacted by CLI.

Intra-cell UE-to-UE cross link interference management at full-duplex operation

Systems and methods for user equipment (UE) capable of performing sidelink (SL) communications that account for overlapped SL resource pools of multiple radio access technologies (RATs) are disclosed. A UE may select, based on prioritizing non-overlapped resources over overlapped resources, one or more candidate resources and/or one or more transmission resources; may determine a power control configuration without considering SL pathloss corresponding to a first RAT when a second power control configuration determination for a second RAT does not consider SL pathloss; may select physical sidelink feedback channel (PSFCH) locations for PSFCH use from first PSFCH locations of resources of a first SL resource pool on a first RAT that do not overlap with a second SL resource pool on a second RAT according to a bitmap; and/or may select one of a PSFCH transmission and PSFCH reception using a data priority rule and/or a pool sharing rule.

Resource allocation for co-channel coexistence

Systems and methods for beam failure recovery (BFR) are disclosed herein. A user equipment (UE) receives downlink (DL) reference signal(s) on corresponding beam(s) from a base station. The UE performs beam failure detection (BFD) on such beams used for user data to determine whether a beam failure has occurred, and candidate beam detection (CBD) on such beams not used for user data to identify candidate beams for recovering from the beam failure. The BFD and the CBD are based on both uplink (UL) channel performance considerations and DL channel performance considerations, as determined using the DL reference signal(s), such that a beam failure may be determined in the UL, the DL, or both, and a candidate beam may be identified for UL, DL, or both. The UE sends a beam failure recovery request BFRQ with this information to the base station, and the system changes beams accordingly.

Systems and methods for beam failure recovery enhancement

A user equipment (UE) is configured to receive message 3 (Msg3) transmissions. The UE receives a system information block (SIB) transmission from a base station of a wireless network, receives a downlink control information (DCI) transmission scheduling a message 2 (Msg2) transmission from the base station, receives the Msg2 transmission including an uplink (UL) grant for a message 3 (Msg3) initial transmission from the base station, determines the number of repetitions for the Msg3 initial transmission based on at least one of the SIB transmission, the DCI transmission, and the Msg2 transmission and determines a frequency hopping (FH) type and FH pattern based on at least one of the SIB transmission, the DCI transmission, and the Msg2 transmission.

Enhancement of message 3 for RACH procedure

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for communications between user equipment. One of the methods includes receiving, by a first device and from a second device, sidelink control information indicating a resource reservation for a single-slot resource for the second device to use to communicate with the first device; determining, by the first device and based at least in part on the sidelink control information, whether a potential resource collision exists when the first device is scheduled to communicate with another device using the single-slot resource or when the single-slot resource is reserved by another device; and in response to determining that the potential resource collision exists, sending, by the first device and within a predetermined number of slots from a reference slot, a collision message to cause the second device to determine another single-slot resource to use to communicate with the first device.

Inter-device communication

A UE may transmit a message comprising information regarding one or more physical random access channel (PRACH) capabilities of the UE to a base station (BS). The UE may then receive, from the BS, signaling comprising an indication of one or more configured PRACH formats supporting the one or more PRACH capabilities. Next, the UE may transmit, using the one or more configured PRACH formats, one or more preambles to the BS in a random access (RACH) procedure. Accordingly, the UE may receive a random access response (RAR) from the base station and further, in response to receiving the RAR, establish a connection with the BS.

Physical random access channel enhancements in new radio

Systems and methods used by reduced sensing user equipment (UE) (relative to a full sensing UE) are disclosed herein. A UE performing partial sensing may use knowledge of resource reservation periods for a resource pool of one or more resources to reduce sensing as compared to the full sensing case. A UE performing resource re-evaluation and/or resource pre-emption may use one or more sensing windows that are relatively smaller than windows used in the full sensing case to reduce sensing. A UE performing prioritized resource selection may use a sensing window to determine availability of resources within it prioritized resource selection window with a high reliability, thereby reducing the need to spend power on other sensing methods (which may include full sensing methods). Combinations of these embodiments are also contemplated.

Power saving sensing for reduced sensing UES using resource re-evaluation and resource pre-emption

Systems and methods for sidelink (SL) resource pool resource use by a user equipment (UE) are disclosed herein. In some embodiments, when the UE performs contiguous partial sensing in addition to periodic partial sensing, the UE performs one of resource selection and resource re-evaluation based a size of a time gap between a slot where the UE has SL data and a first slot of periodic-based candidate slots within a resource selection window. In other embodiments, the UE performs contiguous partial sensing without additional periodic partial sensing in the case where a packet delay budget (PDB) for the SL data is greater than a threshold. In some embodiments, the UE performs periodic partial sensing for resource re-evaluation and/or resource pre-emption according to a set of periodicity values P(and optionally period definition data K). Restrictions on the use of random resource selection by the UE are also described.

Procedures of sidelink resource pool resource use with reduced sensing

Some aspects of this disclosure relate to apparatuses and methods for implementing mechanisms for a network to use Doppler shift pre-compensation values for communicating Tracking Reference Signal (TRS) to a user equipment (UE) and for implementing mechanisms for triggering the UE to measure the Doppler shift pre-compensated TRS. Some aspects of this disclosure relate to a base station including a processor that determines a Doppler shift pre-compensation value associated with the UE in response to determining that the UE is moving with a speed greater than a threshold. The processor further generates an aperiodic Tracking Reference Signal (AP-TRS) or a semi persistent TRS (SP-TRS) for the UE. The AP-TRS or the SP-TRS is decoupled from a periodic TRS (P-TRS). The processor further transmits the AP-TRS or the SP-TRS to the UE. The AP-TRS or the SP-TRS can be used for time and frequency synchronization.

Tracking reference signal (TRS) enhancement with doppler shift pre-compensation

Some embodiments include an apparatus, method, and computer program product for enhanced Hybrid Automatic Repeat Request (HARQ)-ACK in a fifth generation (5G) wireless communications system. A user equipment (UE) can receive, during a HARQ-ACK window, a semi-persistent scheduling (SPS) Physical Downlink Shared Channel (PDSCH) transmission or a Physical Downlink Control Channel (PDCCH) transmission corresponding to a SPS PDSCH release. The UE can generate a Hybrid Automatic Repeat Request (HARQ)-ACK information bit corresponding to the reception. The UE can be configured with an offset value, k, and a length, l, of the HARQ-ACK window associated with an uplink transmission slot n, of a Physical Uplink Control Channel (PUCCH) transmission, and determine a starting slot of the HARQ-ACK window as n-k. When a corresponding valid uplink transmission slot is not available, the UE can transmit the HARQ-ACK information bit in the uplink transmission slot n of the PUCCH transmission.

Method for enhanced HARQ-ACK feedback in wireless communications

Apparatus and methods are provided to for a user equipment (UE) to report channel state information (CSI) to a base station. The UE sends UE capability signaling to a base station to indicate support of a codebook for high speed scenarios. The UE processes configuration information from the base station for CSI reporting using the codebook. The configuration information indicates measurement resources for one or more downlink (DL) channel. The UE measures a channel response and interference using the measurement resources, generates CSI feedback using the codebook for at least one ray from the base station to the UE, and reports the CSI feedback to the base station.

Predictive CSI enhancements for high speed scenarios

Growing community of inventors

San Diego, CA, United States of America

Seyed Ali Akbar Fakoorian