Interdigital Technology Corporation

Interdigital Patent Holdings, Inc.

Fatih Ozluturk

Chang-soo Koo

Aykut Bultan

Jaeyoung Kwak

Robert Lind Olesen

Chang-Soo Koo

Robert L Olesen

Sung-Hyuk Shin

Janet A Stern-Berkowitz

Marian Rudolf

Charles A Dennean

Stephen G Dick

Kyle Jung-Lin Pan

Eldad M Zeira

Paul Marinier

Ghyslain Pelletier

Fatih M Ozluturk

Allan Yingming Tsai

Mihaela C Beluri

Peter J Voltz

I-Tai Lu

Yongwen E Yang

Qingyuan Dai

Stephen E Terry

Christopher R Cave

Sudheer A Grandhi

Shahrokh Nayeb Nazar

John W Haim

Yuejin Huang

KunJu Tsai

Peter Shaomin Wang

Guodong Zhang

Ariela Zeira

Philip J Pietraski

Erdem Bala

Donald M Grieco

Kalpendu Ratanshi Pasad

Moon-il Lee

Fengjun Xi

Pouriya Sadeghi

Nobuyuki Tamaki

Seyed Mohsen Hosseinian

Ananth Kini

Angelo A Cuffaro

Nirav B Shah

Pascal M Adjakple

Jin Wang

James M Miller

Arty Chandra

Joseph S Levy

Kyle Pan

Elad Zeira

Quingyuan Dai

Hui-Yuan Teng

Hesham ElGamal

Chia-Pang Yen

Kun-Ju Tsai

Janet A Stern- Berkowitz

Kunjun Tsai

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

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

Methods and systems for transmitting uplink control information and feedback are disclosed for carrier aggregation systems. A user equipment device may be configured to transmit uplink control information and other feedback for several downlink component carriers using one or more uplink component carriers. The user equipment device may be configured to transmit such data using a physical uplink control channel rather than a physical uplink shared channel. The user equipment device may be configured to determine the uplink control information and feedback data that is to be transmitted, the physical uplink control channel resources to be used to transmit the uplink control information and feedback data, and how the uplink control information and feedback data may be transmitted over the physical uplink control channel.

Uplink control data transmission

Systems, methods, and instrumentalities are disclosed for downlink resource allocation associated with a shared frequency band. A WTRU may receive resource allocation information associated with a component carrier and at least one carrier segment. The component carrier and the least one carrier segment may each comprise a plurality of resource block groups (RBG). At least two bitmaps may be associated with the resource allocation information. A size of a resource block group (RBG) of the component carrier and the at least one carrier segment may be based on a combined number of resource blocks (RB) of the component carrier and the one or more carrier segments divided by a 3GPP Rel-8/Rel-10 RBG size of the component carrier. The WTRU may determine at least one RBG allocated to the WTRU using the resource allocation information and may receive and decode the at least one RBG allocated to the WTRU.

Flexible bandwidth operation in wireless systems

A wireless transmit/receive unit (WTRU) is configured to receive a WTRU-specific configuration of WTRU-specific sounding reference signal (SRS) subframes for performing SRS transmissions. The WTRU is configured to receive a trigger in a subframe to transmit a first SRS. The WTRU is configured to select a first subframe. The WTRU is configured to determine that a maximum power would be exceeded in a symbol in the selected first subframe. The WTRU is configured to, on a condition that transmission of at least one other SRS would at least partially overlap in the symbol in the selected first subframe, scale transmission powers of the first SRS and the at least one other SRS equally to comply with the maximum power. The WTRU is configured to transmit, in accordance with the scaled transmission powers, the first SRS in the selected subframe and the at least one other SRS.

A method and apparatus for implementing spatial processing with unequal modulation and coding schemes (MCSs) or stream-dependent MCSs are disclosed. Input data may be parsed into a plurality of data streams, and spatial processing is performed on the data streams to generate a plurality of spatial streams. An MCS for each data stream is selected independently. The spatial streams are transmitted via multiple transmit antennas. At least one of the techniques of space time block coding (STBC), space frequency block coding (SFBC), quasi-orthogonal Alamouti coding, time reversed space time block coding, linear spatial processing and cyclic delay diversity (CDD) may be performed on the data/spatial streams. An antennal mapping matrix may then be applied to the spatial streams. The spatial streams are transmitted via multiple transmit antennas. The MCS for each data stream may be determined based on a signal-to-noise ratio of each spatial stream associated with the data stream.

Method and apparatus for implementing space time processing with unequal modulation and coding schemes

Systems and/or methods providing ePDCCH in a multiple carrier based and/or quasi-collated network

The present invention is related to a method and apparatus for implementing space frequency block coding (SFBC) in an orthogonal frequency division multiplexing (OFDM) wireless communication system. A wireless transmit/receive unit (WTRU) including a transceiver and a processor is configured to receive, via the transceiver, an orthogonal frequency division multiplexing (OFDM) signal, wherein the OFDM signal comprises a channel coded data stream that was space frequency block coding (SFBC) encoded such that the SFBC encoding was performed using a plurality of pairs of OFDM sub-carriers. The processor is further configured to decode the OFDM signal.

Method and apparatus for implementing space frequency block coding in an orthogonal frequency division multiplexing wireless communication system

A method and apparatus for uplink sounding reference signals (SRS) transmissions are disclosed. A WTRU-specific configuration of WTRU-specific SRS subframes for performing SRS transmissions is received. A trigger is received in a subframe from a base station to transmit a first SRS. A first subframe is selected after the subframe in which the trigger is received which is both a WTRU-specific subframe and at least four subframes after the subframe in which the trigger is received. A determination if a maximum power is exceeded in a symbol in the selected first subframe is made. On a condition that the maximum power is not exceeded in the symbol in the selected first subframe, the first SRS is transmitted in the selected first subframe. On a condition that the maximum power is exceeded in the symbol in the selected first subframe and transmission of at least one channel type other than SRS-type at least partially overlaps in the symbol in the selected first subframe, the first SRS is dropped from the selected first subframe and the at least one channel type other than SRS-type is transmitted. On a condition that the maximum power is exceeded in the symbol in the selected first subframe and transmission of at least one other SRS at least partially overlaps in the symbol in the selected first subframe, transmission powers of the first SRS and the at least one other SRS are scaled equally to comply with the maximum power, and the first SRS is transmitted in the selected first subframe in accordance with the scaled transmission powers, and the at least one other SRS is transmitted in accordance with the scaled transmission powers.

Growing community of inventors

Melville, NY, United States of America

Chang-Soo Koo