Samsung Electronics Co., Ltd.

Other

Md Saifur Rahman

Eko Nugroho Onggosanusi

Emad N Farag

Young-Han Nam

Aris Papasakellariou

Boon Loong Ng

Yang Li

Dalin Zhu

Li Guo

Gilwon Lee

Hoondong Noh

Hongbo Si

Jianzhong Zhang

Youngwoo Kwak

Younsun Kim

Taeyoung Kim

Jianhua Mo

Sudhir Ramakrishna

Hyoungju Ji

Jeongho Jeon

Aristides Papasakellariou

Gang Xu

Yan Xin

Young Han Nam

Sridhar Rajagopal

Thomas David Novlan

Shadi Abu-Surra

Kaushik Morapakkam Josiam

Jeehwan Noh

Joonyoung Cho

Yeqing Hu

Keonkook Lee

Robert W Monroe

Jin Yuan

Ioannis Tzanidis

Eko Onggosanusi

Yuyang Wang

Dexin Wang

Methods and apparatuses for a multi-beam downlink and uplink wireless system. A method of a user equipment includes receiving configuration information for one or more transmission configuration indication (TCI) states and corresponding TCI state identifiers (IDs) and receiving one or more TCI state IDs. The method also includes determining, based on the one or more TCI state IDs, at least one of one or more first spatial domain filters for reception of one or more layers, respectively, of a downlink channel and one or more second spatial domain filters for transmission of one or more layers, respectively, of an uplink channel. The method further includes at least one of receiving the one or more layers of the downlink channel using the one or more first spatial domain filters, respectively, and transmitting the one or more layers of the uplink channel using the one or more second spatial domain filters, respectively.

Configuration of a multi-beam downlink based on TCI states in a wireless system

Calibration in distributed multiple input multiple output (MIMO) networks. A method performed by a first base station (BS) includes receiving a first uplink (UL) reference signal (RS) and determining, based on the first UL RS and a second UL RS, a first phase offset for transmission of a first downlink (DL) RS to a user equipment (UE). The second UL RS is associated with a second BS. The first phase offset of the first DL RS is relative to a second DL RS associated with the second BS. The method further includes transmitting the first DL RS with the first phase offset; receiving UE feedback associated with the first DL RS and the second DL RS; and determining, based on the first phase offset and the received feedback, for a DL data transmission to the UE, a second phase offset between transmissions of the first BS and the second BS.

Method and apparatus for calibration in distributed mimo networks

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

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

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 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

Methods and apparatuses for interference management in a wireless communication system. A method for operating a user equipment (UE) includes receiving configuration information about I. I is interference information for interfering Nremote radio heads (RRHs), where N≤N−1. The configuration information indicates a number of RRHs, N>1. The method further includes determining, based on the interference information I, a downlink (DL) spatial filter using P antenna ports, where P>1, and receiving DL data using the determined DL spatial filter.

Method and apparatus for interference management

Apparatuses and method for channel state information (CSI) reporting. A method performed by a user equipment (UE) includes receiving a configuration about a channel state information (CSI) report. The configuration indicates (i) a value of N, (ii) a value of paramCombination indicating values of three parameters, and (iii) a codebookType. The method further includes determining the CSI report based on the configuration and transmitting the CSI report. Here, Nis a number of time-domain (TD) slot intervals.

Channel state information reporting

A method for operating a user equipment (UE) comprises receiving configuration information on a set of transmission configuration indicator (TCI) states, receiving a TCI state indication associated with downlink (DL) transmissions in a plurality of downlink (DL) time slots, decoding the TCI state indication, and applying the TCI state indication to a reception of the DL transmissions in the plurality of DL time slots.

Method and apparatus for beam management for mobility

A method for operating a user equipment (UE) comprises receiving information about a measurement region that is associated with P ports, where P≥10 and based on the information, identifying the measurement region, measuring the P ports associated with the measurement region, and determining a channel state information (CSI) report based on the measurement, and transmitting the CSI report. The information about the measurement region includes at least two of (i) a set of physical resource blocks (PRBs), (ii) a set of time slots, and (iii) a set of CSI-reference signal (RS) resources. P×O=Q, where Q is a number of precoding dimensions, O=a number of precoding dimensions per port associated with the CSI report, and Ois fixed, configured, or reported by the UE via UE capability reporting.

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Plano, TX, United States of America

Md Saifur Rahman