Samsung Electronics Co., Ltd.

Texas Instruments Corporation

Intel Corporation

Other

Wisconsin Alumni Research Foundation

Apple Inc.

Onggosanusi, Eko

Nam, Young-han

Eko Nugroho Onggosanusi

Md Saifur Rahman

Anand Ganesh Dabak

Runhua Chen

Aris Papasakellariou

Young-Han Nam

Emad N Farag

Timothy M Schmidl

Hongbo Si

Badri N Varadarajan

Ralf Matthias Bendlin

Tarik Muharemovic

Anthony Edet Ekpenyong

Dalin Zhu

Zukang Shen

Li Guo

Boon Loong Ng

Yang Li

Vikram Chandrasekhar

Le Liu

Hoondong Noh

Jianzhong Zhang

Youngwoo Kwak

Gilwon Lee

Thomas David Novlan

Taeyoung Kim

Yuguang Gao

Pierre Bertrand

Yan Hui

Gibong Jeong

Younsun Kim

Srinath Hosur

Tarkesh Pande

Alan Gatherer

Jeongho Jeon

Il Han Kim

Aristides Papasakellariou

Youngbum Kim

Hyoungju Ji

Jaiganesh Balakrishnan

Gang Xu

Gert-Jan Van Lieshout

Robert W Monroe

Jin Yuan

Sandeep Bhadra

Xiaomeng Shi

Ioannis Tzanidis

Antonio F Mondragon-Torres

Steven P Pekarich

Saifur Rahman

Taehyoung Kim

Anuj Batra

Manish Goel

Sridhar Rajagopal

Michael Oliver Polley

Jeehwan Noh

Charles Kasimer Sestok, Iv

Yan Xin

Muhammad Zubair Ikram

Donald Phillip Shaver

Keonkook Lee

Akbar Muhammad Sayeed

Barry Van Veen

David James Love

Hee-Don Gha

Yuyang Wang

Hee Don Gha

Timothy M Schmidt

Nasir Ahmed

Vasanthan Raghavan

Jianzhing Zhang

Badri Varadaharajan

Anand G Debak

Che Lin

Badrl Varadarajan

Robert Monroe

A base station selects a subset of at least one geographically separated antennas for each of the plurality of user equipments. The base station forms at least layer of data stream including modulated symbols, precodes the data stream via multiplication with the NT-by-N precoding matrix where N is the number of said layers and NT is the number of transmit antenna elements and transmits the precoded layers of data stream to the user equipment via the selected geographically separated antennas. The base station signals the subset of the plurality of geographically separated antennas via higher layer Radio Resource Control or via a down link grant mechanism. The base station optionally does not signal the subset of the plurality of geographically separated antennas to the corresponding mobile user equipment.

Downlink multiple input multiple output enhancements for single-cell with remote radio heads

An apparatus for mapping data in a wireless communication system. The apparatus includes circuitry for generating a precoding matrix for multi-antenna transmission based on a precoding matrix indicator (PMI) feedback from at least one remote receiver where the PMI indicates a choice of precoding matrix derived from a matrix multiplication of two matrices from a first code book and a second codebook. The apparatus further includes circuitry for precoding one or more layers of a data stream with the precoding matrix and transmitting the precoded layers of data stream to the remote receiver.

Transmission modes and signaling for uplink MIMO support or single TB dual-layer transmission in LTE uplink

A method for operating a user equipment (UE) comprises receiving configuration information about a channel state information (CSI) report, the configuration information including codebook parameters (M, α, β), wherein: M is a number of frequency domain basis vectors, α is a number≤1, and β is a number≤1; identifying values of M, α, and β; determining a value of Kbased on α, where Kis a number of selected CSI reference signal (CSI-RS) ports from a total of P CSI-RS ports; determining a maximum number of non-zero coefficients based on β; determining the CSI report based on the values of M, K, and the maximum number of non-zero coefficients; and transmitting the CSI report.

Method and apparatus for CSI reporting

Apparatuses and methods for beam failure recovery under a unified transmission configuration indication (TCI) framework in a wireless communication system. A method for operating a user equipment (UE) includes receiving information associated with a control resource set (CORESET) configured for the UE and identifying, based on the information, a type of the CORESET configured for the UE. The method further includes determining, based at least in part on the identified type of the CORESET, a set of beam failure detection (BFD) reference signals (RSs) to use and monitoring for a beam failure instance (BFI) based on the set of BFD RSs.

Method and apparatus for beam failure recovery under a unified TCI framework

Methods and apparatus for beam failure recovery in a wireless communication system. A method of operating a user equipment (UE) is includes receiving, in a radio resource control (RRC) signaling, a pool of one or more reference signal (RS) resource indexes for a beam failure detection RS (BFD-RS) configuration; receiving a medium access control control element (MAC CE) command for BFD-RS activation; and receiving a control resource set (CORESET) with one or two transmission configuration information (TCI) states. The method further includes determining, based on the MAC CE command, a first set of one or more RS resource indexes for beam failure detection and determining, based on the one or two TCI states for the CORESET, one or more RS resource indexes in a second set of one or more RS resource indexes for beam failure detection.

Method and apparatus for recovering beam failure in a wireless communications system

Methods and apparatuses for fast beam indication. A method of operating a UE includes receiving a number (M) of transmission configuration indicator (TCI)state code points activated by a medium access control element (MAC CE) and, if the UE is configured to be indicated TCI state code points on DL control information (DCI) and M>1, receiving the DCI that indicates at least one TCI state code point from the M TCI state code points and determining a TCI state to apply to at least one of downlink (DL) channels and uplink (UL) channels. The method further includes updating one or more spatial filters for at least one of the DL channels and the UL channels based on the determined TCI state and at least one of receiving and transmitting the DL channels and the UL channels, respectively, based on the updated one or more spatial filters.

Method and apparatus for fast beam indication

Apparatuses and methods for multi-stage downlink control information (DCI) for uplink (UL) precoding in a wireless communication system. A method for operating a user equipment (UE) receiving, via a two-stage DCI framework, configuration information for transmission of an UL signal. The configuration information includes allocated resources for the UL signal transmission and UL precoding information. The method further includes applying, based on the UL precoding information, UL precoding for the transmission of the UL signal and transmitting the precoded UL signal on the allocated resources. The two-stage DCI framework includes a first-stage DCI, X, and a second-stage DCI, X. The first-stage DCI, X, includes at least one of first information associated with the second-stage DCI and a first part of the configuration information. The second-stage DCI, X, includes at least one of second information based on the first information and a second part of the configuration information.

Method and apparatus for multi-stage DCI for uplink precoding

Embodiments of the present disclosure provide a transmitter, a receiver and methods of operating a transmitter and a receiver. In one embodiment, the transmitter includes a synchronization unit configured to provide a primary synchronization signal and a secondary synchronization signal having first and second segments. The transmitter also includes a secondary scrambling unit configured to provide a scrambled secondary synchronization signal, wherein scrambling agents for the first and second segments are derived from a primary synchronization sequence of the primary synchronization signal. The secondary scrambling unit is further configured to provide an additional scrambling of one of the first and second segments, wherein a second scrambling agent is derived from the remaining segment of a secondary synchronization sequence of the secondary synchronization signal. The transmitter further includes a transmit unit configured to transmit the primary synchronization signal and the scrambled secondary synchronization signal.

Mapping schemes for secondary synchronization signal scrambling

Methods and apparatuses for beam management after channel setup. A method of operating a user equipment (UE) includes receiving at least one of synchronization signal/physical broadcast channel block (SSB) or channel state information reference signal (CSI-RS), measuring the at least one of the SSB or the CSI-RS, and determining downlink (DL) quasi-co-location (QCL) properties for DL communication based on the at least one of the SSB or the CSI-RS. The method further includes determining an uplink (UL) spatial domain filter for UL communication, receiving DL channels using the determined DL QCL properties until only one of only one joint TCI state or only one DL TCI state is configured, activated, or indicated to the UE, and transmitting UL channels using the determined UL spatial domain filter until only one of only one joint TCI state or only one UL TCI state is configured, activated, or indicated to the UE.

Method and apparatus for beam management after channel setup

Apparatuses and methods for compression-based channel state information (CSI) reporting are provided. A method includes receiving a configuration about a CSI report, the configuration including information about N>1 groups of CSI reference signal (CSI-RS) ports and a codebook. The codebook includes a first component that includes P≥2 sets of basis vectors including a first set for spatial domain (SD) and a second set for frequency domain (FD) and a second component that includes coefficients associated with each basis vector combination (v, v, . . . , v), where vbelongs to a k-th set of basis vectors. The method further includes, based on the configuration, measuring the Ngroups of CSI-RS ports and determining the first component and the second component and transmitting the CSI report including one or multiple basis vector indicators indicating all or a portion of the first component and one or multiple coefficient indicators indicating all or a portion of the second component.

Method and apparatus for compression-based CSI reporting

A method for operating a user equipment (UE) comprises receiving a configuration about a channel state information (CSI) report, the configuration including information about a time interval W for the CSI report, the time interval W comprising multiple time slots; and a number (Y) of channel quality indicator (CQI) values associated with the time interval W; deriving, based on the configuration, the Y CQI values, each of the Y CQI values at a corresponding time slot in the time interval W, wherein the Y CQI values satisfy a block error (BLER) probability requirement; and transmitting the CSI report including the Y CQI values, wherein Y≥1.

A method for operating a user equipment (UE) comprises receiving information for a maximum permissible emission (MPE) report; determining the MPE report including Q pairs of (resource indicator, MPE metric), where Q∈{1, . . . , P}; including the MPE report in a power headroom (PHR) report; and transmitting, via medium access control-control element (MAC CE), the PHR report including the MPE report.

Method and apparatus for beam measurement and reporting

For multiplexing channel state information (CSI), a user equipment (UE) includes a transceiver configured to receive configuration information for CSI reporting and a processor configured to decode the configuration information and calculate a CSI according to the configuration information. The transceiver is configured to transmit the calculated CSI on an uplink (UL) channel, where the CSI includes N segments and is transmitted in one slot, where N>1. A first of the N segments includes a rank indicator (RI) and at least one other CSI parameter. A base station (BS) includes a processor configured to generate configuration information for CSI reporting and a transceiver configured to transmit, to a UE, the configuration information via a downlink (DL) channel; and receive, from the UE, a CSI report calculated in accordance with the configuration information on an uplink UL channel.

Method and apparatus for multiplexing channel state information

A wireless transmission system included at least one user equipment and a base station. The base station is operable to form a downlink control information block, modulate the downlink control information, precode the modulated downlink control information, and transmit the precoded, modulated downlink control information on at least one demodulation reference signal antenna port to the at least one user equipment. The precoded, modulated downlink control information is mapped to a set of N1 physical resource block pairs in a subframe from an orthogonal frequency division multiplexing symbol T1 to and orthogonal frequency division multiplexing symbol T2.

Physical downlink control channel and physical hybrid automatic repeat request indicator channel enhancements

A method for operating a user equipment (UE) comprises receiving a configuration via a radio resource control (RRC) message, the configuration including information about a channel state information reference signal (CSI-RS) burst comprising B>1 time instances of CSI-RS transmission; measuring the CSI-RS burst; determining, based on the measurement, time-domain (TD) or Doppler domain (DD) components of a downlink (DL) channel; and transmitting a CSI report including an indication about the TD or DD components of the DL channel.

Method and apparatus for configuring a reference signal burst

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Allen, TX, United States of America

Eko Nugroho Onggosanusi