Interdigital Patent Holdings, Inc.

Interdigital Technology Corporation

Idac Holdings, Inc.

Vid Scale, Inc.

Intel Corporation

Sony Group Corporation

Robert L Olesen

Oghenekome Oteri

Hanqing Lou

Guodong Zhang

Kyle Jung-Lin Pan

Xiaofei Wang

Fengjun Xi

Rui Yang

Pengfei Xia

Nirav B Shah

Chang-Soo Koo

Sung-Hyuk Shin

Monisha Ghosh

Paul Marinier

Frank La Sita

Donald M Grieco

Ghyslain Pelletier

Allan Yingming Tsai

Philip J Pietraski

Stephen E Terry

Eldad M Zeira

Shahrokh Nayeb Nazar

Marian Rudolf

Aykut Bultan

Chunxuan Ye

Alphan Sahin

Jaeyoung Kwak

Fatih M Ozluturk

Joseph S Levy

Yuan Sheng Jin

Jin Wang

Li-Hsiang Sun

Sudheer A Grandhi

Arty Chandra

Zinan Lin

Yuejin Huang

Peter J Voltz

Moon-il Lee

Mohammed Sammour

Erdem Bala

I-Tai Lu

Christopher R Cave

Lei Wang

Stephen G Dick

Afshin Haghighat

Charles A Dennean

Kalpendu Ratanshi Pasad

Yongwen E Yang

Qingyuan Dai

Pascal M Adjakple

John W Haim

Hanging Lou

Changsoo Koo

KunJu Tsai

Alexander Reznik

Lakshmi R Iyer

Ronald Murias

Bhaskar M Anepu

Jung-Lin Pan

Sungkwon Hong

Muhammad U Fazili

Janet A Stern-Berkowitz

Peter Shaomin Wang

Manasa Raghavan

Jean-Louis Gauvreau

Prabhakar Chitrapu

Shankar Somasundaram

Gregory S Sternberg

John Erich Hoffmann

Kai Liu

Yousif Targali

Juan Fang

Yingming Tsai

Benoit Pelletier

Mihaela C Beluri

Li Hsiang Sun

Yingxue K Li

John David Kaewell, Jr

Byung Kwan Yi

Steven Ferrante

Richard Dan Herschaft

Ariela Zeira

Liangping Ma

Yuriy Reznik

Robert A DiFazio

Debashish Purkayastha

John V Thommana

Ralph Neff

Louis Joseph Kerofsky

Alan Gerald Carlton

Eduardo Asbun

Loic Canonne-Velasquez

Rahul Vanam

Alain Charles Louis Briancon

William E Lawton

Kyle Pan

Akinlolu Oloruntosi Kumoluyi

Amit Singhal

Methods and apparatus are described. A station includes a transceiver and a processor, which receive a trigger frame for an uplink (UL) transmission. The trigger frame includes an indication of resource units (RUs) for random access in an upcoming UL high efficiency trigger based packet data convergence protocol data unit and an indication that the trigger frame is a poll for a buffer status report of the STA. The processor and the transceiver transmit a buffer status of the STA using a selected one of the indicated RUs.

Method and apparatus for multi-user concurrent random access for wireless local area networks (WLANS)

Methods and apparatuses are described herein for adapting clear channel assessment (CCA) thresholds with or without Transmit Power Control (TPC) are disclosed. An IEEE 802.11 station (STA) may dynamically calculate a STA specific transmit power control (TPC) value and a STA specific clear channel assessment (CCA) value based on a target TPC parameter and a target CCA parameter. The target TPC parameter and the target CCA parameter may be received from an IEEE 802.11 cluster head configured to control TPC and CCA for a plurality of STAs associated with the BSS. The target TPC parameter and the target CCA parameter also may be related. The STA may then determine whether a carrier sense multiple access (CSMA) wireless medium of a wireless local area network (WLAN) basic service set (BSS) is occupied or idle based on the STA specific CCA value.

Clear channel assessment (CCA) threshold adaptation method

A method and apparatus for transmitting uplink control information (UCI) for Long Term Evolution-Advanced (LTE-A) using carrier aggregation is disclosed. Methods for UCI transmission in the uplink control channel, uplink shared channel or uplink data channel are disclosed. The methods include transmitting channel quality indicators (CQI), precoding matrix indicators (PMI), rank indicators (RI), hybrid automatic repeat request (HARQ) acknowledgement/non-acknowledgement (ACK/NACK), channel status reports (CQI/PMI/RI), source routing (SR) and sounding reference signals (SRS). In addition, methods for providing flexible configuration in signaling UCI, efficient resource utilization, and support for high volume UCI overhead in LTE-A are disclosed.

Uplink control information transmission methods for carrier aggregation

Mechanisms may be used for aggregating acknowledgement (ACK), block ACK (BA) and/or short packets transmissions for multi-user (MU) wireless communication systems. Aggregation mechanisms may be used for uplink (UL) and/or downlink (DL) orthogonal frequency division multiple access (OFDMA), and/or UL/DL multiple-user multiple input multiple output (MU-MIMO) transmissions, for example. Multi-user short packets may be aggregated and/or simultaneously transmitted for DL, UL, or peer-to-peer (P2P) transmissions.

Short packet optimization in WLAN systems

Systems, methods, and instrumentalities are provided to implement transmission scheduling. A multiband device may send a request via a first frequency band. The request may include a multiband Request to Send (MRTS) transmission. The request may be associated with a second frequency band and/or a beamforming training schedule. The first frequency band may be associated with a quasi-omni transmission and the second frequency band may be associated with a directional transmission. The first frequency band may be a 5 GHz band and the second frequency band may be a 60 GHz band. The multiband device may receive a multiband Clear to Send (MCTS) transmission via the first frequency band confirming the request. The multiband device may be configured to send a beamforming signal in accordance with the request, for example, via the second frequency band. The beamforming signal may be sent in accordance with a beamforming training schedule.

Multi-band operation for wireless LAN systems

Systems, methods, and instrumentalities are disclosed for interleaving coded bits. A wireless transmit/receive unit (WTRU) may generate a plurality of polar encoded bits using polar encoding. The WTRU may divide the plurality of polar encoded bits into sub-blocks of equal size in a sequential manner. The WTRU may apply sub-block wise interleaving to the sub-blocks using an interleaver pattern. The sub-blocks associated with a subset of the sub-blocks may be interleaved, and sub-blocks associated with another subset of the sub-blocks may not be interleaved. The sub-block wise interleaving may include applying interleaving across the sub-blocks without interleaving bits associated with each of the sub-blocks. The WTRU may concatenate bits from each of the interleaved sub-blocks to generate interleaved bits, and store the interleaved bits associated with the interleaved sub-blocks in a circular buffer. The WTRU may select a plurality of bits for transmission from the interleaved bits.

Polar coding systems, procedures, and signaling

An access point (AP) may determine that a basic service set (BSS) color of an overlapping BSS (OBSS) associated with a neighboring AP is a same color as a BSS color of the AP. A BSS color change announcement message may be generated having BSS color information and a color switching time. The BSS color information may indicate a BSS color for the AP and the color switching time may indicate a time until the AP switches to the BSS color.

Basic service set (BSS) management in a wireless local area network (WLAN)

A method performed by a STA may comprise receiving data of a MU-HE-PPDU, from an AP. The MU-HE-PPDU may comprise a HE-SIG-A field, a first HE-SIG-B portion and a second HE-SIG-B portion. The first HE-SIG-B portion may be received on a first channel and the second HE-SIG-B portion may be received on a second channel which is different than the first channel. The first HE-SIG-B portion may include one or more STA identifiers.

Method and system for wireless local area network (WLAN) long symbol duration migration

A wireless transmit/receive unit (WTRU) may receive a constellation symbol that includes indications that each are associated with a respective WTRU of a plurality of WTRUs. The WTRU may determine that a first weight associated with a first indication of the indications is different than a second weight associated with a second indication of the indications. The indications may comprise indications of bits modulated at a multi-user constellation bit division multiple access modulator (MU-CBDMAM).

Multi-user interleaving and modulation in a wireless network

Device, systems, and/or techniques for using sub-channel signaling information between an access point and a first station are disclosed. In one aspect, a method performed by a station (STA) includes: receiving, from a neighboring STA in an overlapping basic service set (OBSS), a physical (PHY) layer preamble that includes a signal field indicating a plurality of sub-bands and associated power thresholds for Uplink Orthogonal Frequency-Divisional Multiple Access (UL OFDMA) transmission, that are available for OBSS spatial reuse (SR) by the STA; and sending, to an AP with which the STA is associated, an UL OFDMA transmission using a sub-band of the plurality of sub-bands and an associated power threshold indicated in the signal field. Additional embodiments are disclosed.

Methods and devices for sub-channelized transmission schemes in WLANs

Methods and systems for operation in a WLAN are provided. Methods and systems for a transmit power control (TPC) scheme are disclosed. In an embodiment, an access point (AP) may send a trigger frame to one or more stations (STAs) for synchronizing and scheduling uplink (UL) multi-user (MU) transmissions. The trigger frame may contain an open-loop power control index 1 and a power adjustment index 2. The one or more STAs may estimate pathloss using an indicated AP transmit power and received power to set a baseline transmit power. The one or more STAs may adjust their transmit power in the UL transmission period to be the indicated target receive power at the AP.

Multi-user power control methods and procedures

Methods and apparatuses are described herein for full-duplex transmission opportunity discovery and transmission in a wireless 802.11 network. A station (STA) may receive a transmission opportunity (TxOP) setup frame from an access point (AP), the TxOP setup frame including information enabling the STA to transmit a first measurement frame and another STA to transmit a second measurement frame. The STA may transmit the first measurement frame to the other STA, receive the second measurement frame from the other STA, and transmit feedback to the AP based on the received second measurement frame. The STA may receive, based on the feedback, a trigger frame from the AP to communicate during a TxOP and receive, during the TxOP, downlink data from the AP.

Full duplex opportunity discovery and transmission for asymmetric full duplex wireless local area networks (WLANS)

Methods, devices and systems are provided for performing for multi-user (MU) transmission. A wireless transmit/receive unit (WTRU) may be configured to receive a frame, decode the received frame and determine whether the received frame is a null data packet (NDP) multi-user (MU) media access control (MAC) physical layer convergence protocol (PLCP) protocol data unit (PPDU) (NDP MU MAC PPDU) based on meeting an NDP condition. The NDP MU MAC PPDU may correspond to an MU transmission and may include a PLCP header which includes an NDP signal (SIG) field having MU control information. Based on the received frame meeting the NDP condition, the WTRU may be further configured to process the NDP SIG field, generate a response based on the NDP SIG field and the MU control information, and transmit the response.

Methods, apparatuses and systems for supporting multi-user transmissions in a wireless local area network (WLAN) system

An access point (AP) may transmit a null data packet announcement (NDPA) with an indication of a resource unit of a bandwidth that feedback is requested. The AP may transmit a null data packet (NDP) for measurement of a channel quality for a resource unit of a bandwidth. The AP may transmit, based on a response, another feedback request for resource units of the bandwidth.

Unified feedback for OFDMA WLAN

Methods and apparatuses are described herein for multiple access schemes for Wireless Local Area Network (WLAN) with full-duplex radios. For example, an access point (AP), in response to receiving a request to send (RTS) from a first station (STA), may transmit a full-duplex clear to send (FD CTS) to the first STA and a full-duplex request to send (FD RTS) to a second STA. In response to transmitting the FD RTS to the second STA, the AP may receive a clear to send (CTS) from the second STA. The AP may transmit, to both the first STA and the second STA, a FD trigger frame that includes scheduling information to enables FD communication with the first STA for uplink (UL) data and the second STA for downlink (DL) data at a same time. The scheduling information may include timing information and channel information for the FD communication.

Channel access schemes for wireless local area network (WLAN) with full-duplex radios

Growing community of inventors

Huntington, NY, United States of America

Robert L Olesen