Interdigital Patent Holdings, Inc.

Interdigital Technology Corporation

Idac Holdings, Inc.

Sony Corporation

Sony Group Corporation

Interdigital Vc Holdings, Inc.

Idag Holdings, Inc.

Janet A Stern-Berkowitz

Moon-il Lee

Mihaela C Beluri

Pouriya Sadeghi

Marian Rudolf

Sung-Hyuk Shin

Erdem Bala

Nobuyuki Tamaki

Stephen E Terry

Afshin Haghighat

J Patrick Tooher

John W Haim

Kyle Jung-Lin Pan

Peter Shaomin Wang

Philip J Pietraski

Guodong Zhang

Ghyslain Pelletier

Ana Lucia Iacono

Fengjun Xi

Virgil Comsa

Rui Yang

Alphan Sahin

Chang-Soo Koo

Tao Deng

Ravikumar V Pragada

Charles A Dennean

Samian Kaur

Shahrokh Nayeb Nazar

Paul Marinier

Yugeswar Deenoo

Ananth Kini

Pascal M Adjakple

Kai Liu

Allan Yingming Tsai

Joseph S Levy

Stephen G Dick

Li-Hsiang Sun

Alpaslan Demir

Arnab Roy

Sanjay Goyal

Changsoo Koo

Kambiz Casey Zangi

Douglas R Castor

Moon Il Lee

Loic Canonne-Velasquez

Kevin T Wanuga

John Mathisen McNally

Vincent Roy

Meilong Jiang

Carl Wang

Sasidhar Movva

Diana Pani

Eldad M Zeira

Jin Wang

Frank La Sita

Sungkwon Hong

Seyed Mohsen Hosseinian

Steven Ferrante

Oghenekome Oteri

Chunxuan Ye

Christopher R Cave

Robert L Olesen

Donald M Grieco

Gregory S Sternberg

Yingxue K Li

Kiran K Vanganuru

Muhammad U Fazili

Kenneth Kearney

Jaehyun Ahn

Mahmoud Taherzadeh Boroujeni

Hanqing Lou

James M Miller

Juan Carlos Zuniga

Tuong Duc Hoang

Ana Lucia A Pinheiro

Aata El Hamss

Yi-Ju Chao

Teresa Hunkeler

Jaya Rao

Patrick Tooher

Xiaofei Wang

Sudheer A Grandhi

Arty Chandra

Ahmad Reza Hedayat

Inhyok Cha

Leonid L Kazakevich

Angelo A Cuffaro

Alain Mourad

Nirav B Shah

Faris Alfarhan

Kevin Peter Johnson

Onur Sahin

Ping-Heng Kuo

Maged Zaki

Byung Kwan Yi

James C Otto

Hanging Lou

Timothy A Axness

William E Lawton

Dylan James Watts

Systems, methods, and instrumentalities are disclosed for LTE operation in an unlicensed spectrum (LTE-U). A wireless transmit/receive unit (WTRU) may establish a connection with a first cell on a licensed frequency band. The WTRU may receive a first downlink transmission from a second cell operating on an unlicensed frequency band. The WTRU may determine that a synchronization signal transmission from a third cell operating on the unlicensed frequency band is transmitted using one or more resource elements. The WTRU may perform frequency and/or timing estimation based on the synchronization signal transmission. The WTRU may perform rate matching around the one or more resource elements that correspond to the synchronization signal transmission. The WTRU may perform rate matching around the one or more resource elements by de-mapping symbols of the downlink transmission.

Channel usage indication and synchronization for LTE operation in unlicensed bands

Transmit and/or receive beamforming may be applied to the control channel transmission/reception, e.g., in mmW access link system design. Techniques to identify candidate control channel beams and/or their location in the subframe structure may provide for efficient WTRU operation. A framework for beam formed control channel design may support varying capabilities of mBs and/or WTRUs, and/or may support time and/or spatial domain multiplexing of control channel beams. For a multi-beam system, modifications to reference signal design may discover, identify, measure, and/or decode a control channel beam. Techniques may mitigate inter-beam interference. WTRU monitoring may consider beam search space, perhaps in addition to time and/or frequency search space. Enhancements to downlink control channel may support scheduling narrow data beams. Scheduling techniques may achieve high resource utilization, e.g., perhaps when large bandwidths are available and/or WTRUs may be spatially distributed.

Downlink control channel design and signaling for beamformed systems

Systems, methods, and instrumentalities are described for handling positioning reference signals in a wireless communication system. The positioning reference signals may be assigned priorities that may be used to facilitate various operations of a wireless transmit/receive unit (WTRU) such as positioning related services, collision avoidance, measurement and reporting, etc. The WTRU may be configured with multiple muting patterns associated with the positioning reference signals and may switch between different muting patterns based on the priorities of the positioning reference signals and/or other downlink (DL) or uplink (UL) transmissions that may overlap or collide with the positioning reference signals.

Handling positioning reference signals in wireless systems

Methods, apparatus, systems, architectures and interfaces for receiving system information performed by a wireless transmit receive unit (WTRU) having reduced capacity, are provided. A method may include any of: receiving a physical broadcast channel (PBCH) transmission of a cell, the PBCH transmission including information, wherein the information indicates a first control resource set (CORESET) associated with reception of a system information block (SIB); receiving, via the first CORESET, a first physical downlink control channel (PDCCH) transmission including information indicating a first type SIB associated with the first PDCCH transmission, wherein the information indicating the first type SIB includes information indicating a second CORESET that (1) is associated with reception of a second type SIB, and (2) has fewer resource blocks than the first CORESET; and receiving, via the second CORESET, a second PDCCH transmission including information indicating the second type SIB associated with the second PDCCH transmission.

Methods, apparatus, and systems for reduced bandwidth for reduced capability WTRUs

A base station may sense, on a cell using unlicensed spectrum, that the unlicensed spectrum is available for transmission. The base station may transmit, after sensing that the unlicensed spectrum is available, consecutive subframes. Each subframe may include a physical downlink control channel and a physical downlink shared channel.

Wireless operation in unlicensed spectrum

A wireless transmit/receive unit (WTRU) may receive, from a base station, a synchronization signal/physical broadcast channel (SS/PBCH) block transmission. The WTRU may transmit using a physical random access channel (PRACH) resource. Further, the PRACH resource may be determined based on an SS/PBCH block index. Also, the SS/PBCH block index may be determined based on information associated with the SS/PBCH block transmission. In a further example, the information associated with the PBCH block may be derived from a demodulation reference signal (DMRS) sequence. In another example, the DMRS sequence may be a PBCH DMRS sequence. Also, the information associated with the PBCH block may be derived from PBCH payload bits. Further, the SS/PBCH block index may be associated with a beam. In addition, SS/PBCH transmissions of different beams may be transmitted at different times. Further, the PRACH resource may include a preamble resource, a time resource and a frequency resource.

Random access in new radio (NR) and other beamforming systems

A wireless transmit/receiver unit (WTRU) is configured to receive sounding reference signal (SRS) configuration information. The SRS configuration information indicates a plurality of SRS configurations and indicates antenna transmission information. The WTRU is configured to receive SRS trigger information. The SRS trigger information comprises an indication to trigger transmission of one of the plurality of SRS configurations. The WTRU is configured to transmit a plurality of SRS associated with the indication in the SRS trigger information and based on the SRS configuration information. At least a first SRS of the plurality of SRS is transmitted over a first antenna port in a first symbol and at least a second SRS of the plurality of SRS is transmitted over a second antenna port in a second symbol.

Uplink sounding reference signals configuration and transmission

Methods, apparatus, systems and procedures to manage a multicast communication to a multicast group implemented by a respective wireless transmit/receive unit (WTRU) of WTRUs in the multicast group are disclosed. One representative method includes receiving, by the respective WTRU of the multicast group, a configuration, the configuration indicating a Random Access Channel (RACH) preamble to use for a negative acknowledgement (NACK) response to a multicast transmission to the respective WTRU, monitoring, by the respective WTRU, for data of the multicast transmission, determining, by the respective WTRU, whether the monitored for data was successfully received; and on condition that the monitored for data was not successfully received, sending, by the respective WTRU, the RACH preamble indicated by the received configuration.

Methods, apparatus, systems and procedures for supporting multicast transmission

A method and apparatus are described. A method includes determining whether the apparatus is in a coverage enhancement (CE) mode or a non-CE mode. The method further includes receiving a CE-system information block (CE-SIB) on a physical downlink shared channel (PDSCH) based on at least one of a known location or at least one known parameter for the CE-SIB, on a condition that the WTRU is determined to be in the CE mode.

Method and apparatus for system information block (SIB) acquisition for wireless transmit/receive units (WTRUS) in non-CE and coverage enhanced (CE) modes

A wireless transmit/receive unit (WTRU) may receive assignment information for receiving a first codeword using a first modulation and coding scheme (MCS) in a first set of resource blocks (RBs), and a second codeword using a second, different MCS in a second set of RBs. The first and second sets of RBs may be in a first time interval in a first bandwidth part using a first subcarrier spacing. The WTRU may receive, in symbols of the first time interval in the first bandwidth part, the first codeword using the first MCS in the first set of RBs and the second codeword using the second, different MCS in the second set of RBs. At least a portion of the first codeword and at least a portion of the second codeword may be received in at least a first symbol in the symbols in the first time interval.

Physical (PHY) layer solutions to support use of mixed numerologies in the same channel

A WTRU may be configured to transmit to a network (e.g., in a first indication) a full power uplink transmission capability associated with the WTRU, e.g., Cap3. The WTRU may receive (e.g., in a second indication) an indication of whether the WTRU is allowed to operate with full power transmission. The WTRU may determine (e.g., from a set of TPMIs), a subset of TPMIs based on, for example, the WTRU's full power uplink transmission capability (e.g., where the subset of TPMIs includes a first TPMI). The set of TPMIs may comprise one or more subsets of TPMIs. The WTRU may transmit (e.g., in a third indication) an indication of the determined subset of TPMIs. The WTRU may receive (e.g., in a fourth indication) an indication of the first TPMI in the subset of TPMIs. The WTRU may transmit to the network uplink data precoded with the first TPMI.

UL MIMO full TX power

A method and apparatus are described for a low cost machine-type-communication (LC-MTC) wireless transmit/receive unit (WTRU) to enhance coverage. An example method for physical broadcast channel (PBCH) enhancement includes receiving system information on an enhanced PBCH (ePBCH). The ePBCH is located in a set of radio frames which is a subset of available radio frames, where the subset includes fewer than all the available radio frames. The ePBCH is received in at least one radio frame of the set of radio frames. An example method for physical random access channel (PRACH) enhancement includes receiving configuration of legacy PRACH resources and enhanced PRACH (ePRACH) resources. The WTRU selects one of legacy PRACH resources or ePRACH resources based on a coverage capability. Another example method for PRACH enhancement includes receiving configuration of ePRACH resources. The ePRACH resources include multiple ePRACH resource types, each ePRACH resource type being associated with a coverage capability.

Method and apparatus for enhancing coverage of machine type communication (MTC) devices

A wireless transmit receive unit (WTRU) may receive a physical control channel transmission including control information for a data transmission. The WTRU may determine between a first type of waveform and a second type of waveform for the data transmission based on at least a format of the control information. Further, the WTRU may transmit the data transmission using the determined type of waveform. In an example, the type of waveform is further determined based on indication information included in the physical control channel transmission. Also, the first type of waveform may be an orthogonal frequency division multiplexing (OFDM) waveform and the second type of waveform is a discrete Fourier transform spread OFDM (DFT-S-OFDM) waveform. Moreover, the determination between the first type of waveform and the second type of waveform may be further based on an indication to use the DFT-S-OFDM waveform.

Method and apparatus for physical sidelink control channel (PSCCH) design in new radio (NR)

Method, apparatus, and systems for flexible aperiodic reference signal (RS) transmissions are provided. For example, a method implemented in a wireless transmit/receive unit (WTRU) for wireless communications comprises receiving configuration information of one or more sounding reference signal (SRS) resource sets, each SRS resource set of the one or more SRS resource sets is associated with a slot offset and a set of slot offset deltas; receiving downlink control information (DCI) indicating an SRS request, the SRS request indicates an SRS resource set of the one or more SRS resource sets; determining an SRS configuration from a set of SRS configurations for SRS transmissions; determining a slot for transmitting an SRS based on the determined SRS configuration; and transmitting, in the determined slot, the SRS using resources of the indicated SRS resource set.

Methods and apparatus for flexible aperiodic SRS transmission

ePDCCH may be provided. For example, a WTRU may receive a configuration for monitoring an ePDCCH resource. Based on the configuration, the WTRU may be configured to monitor and may monitor the ePDCCH resource on a particular subframe. Additionally, a WTRU may derive an aggregation level for a subframe associated with an aggregation level number N. The WTRU may transmit or monitor an ePDCCH using the aggregation level associated with the Nfor the subframe. A WTRU may also receive a reference signal. The WTRU may then determine the type of reference signal received. The WTRU may perform a demodulation of the PDSCH or ePDCCH using a demodulation timing based on the determined type. The ePDCCH or PDSCH may also be monitored or received by identifying a demodulation reference timing implicitly based on a location of one or more ePDCCH resources where the WTRU may receive DCI.

Systems and/or methods for providing enhanced PDCCH in a multiple carrier based and/or quasi-collated network

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Little Neck, NY, United States of America

Janet A Stern-Berkowitz