Understanding Coordinated Beamforming and MU-MIMO in IEEE 802.11-23/1998r0
This document delves into the intricacies of Coordinated Beamforming (Co-BF) and MU-MIMO techniques in the context of IEEE 802.11-23/1998r0 standard. It explores the concept of nulling in Co-BF, handling more Rx antennas than streams, Zero-Forcing precoding to eliminate Multi-User Interference (MUI)
2 views • 22 slides
Achieving Radiant Skin_ Effective Treatments for Common Concerns
Achieving Radiant Skin: Effective Treatments for Common Concerns\n\nAchieving flawless, radiant skin is a desire shared by many. However, various skin concerns such as sagging, acne, pigmentation issues, and stretch marks can hinder one's confidence. Fortunately, advancements in dermatological treat
10 views • 2 slides
Advancements in Simple Multigraph Convolution Networks by Xinjie Shen
Explore the latest innovations in simple multigraph convolution networks presented by Xinjie Shen from South China University of Technology. The research evaluates existing methods, such as PGCN, MGCN, and MIMO-GCN, and introduces novel techniques for building credible graphs through subgraph-level
3 views • 6 slides
Overview of RAN Rel18 Package and Projects
Explore the RAN Release 18 package which includes RAN1-led, RAN2-led, and RAN3-led projects focusing on a variety of enhancements for next-generation networks. Projects cover areas such as MIMO evolution, AI/ML, NR positioning, network energy savings, mobility enhancements, IoT support, and more. Di
5 views • 7 slides
Understanding Balance Sheets for Non-Trading Concerns
Balance sheets for non-trading concerns follow similar principles to those of trading concerns but may include specific items unique to nonprofit organizations. This article explains the format, preparation, and examples of balance sheets for non-trading concerns, along with additional information o
0 views • 6 slides
Rate Optimization in Wideband RIS-assisted Wireless Systems
This research focuses on rate optimization in wideband RIS-assisted wireless systems, specifically investigating MIMO RIS-assisted systems in sub-6 GHz mmWave settings. Pathloss and blockage modeling, along with LOS vs. spectral efficiency and RIS-UE distance vs. spectral efficiency analyses, are ke
0 views • 4 slides
Understanding Low Level Concerns in Safeguarding Children and Young People
Safeguarding children and young people involves addressing low level concerns, which may not meet harm thresholds but still require attention. Examples include inappropriate behavior towards children and breaches of conduct. The importance of setting out policies for low level concerns is highlighte
0 views • 18 slides
Discussion on Multi-RU Allocation in IEEE 802.11be Standard
In January 2020, a discussion took place on the allocation of multiple Resource Units (RUs) to a single Station (STA) in the IEEE 802.11be standard. The proposal suggested categorizing RUs into small and large types, avoiding aggregation across multiple 20MHz channels. It emphasized assigning a sing
2 views • 29 slides
Approval and Validation Updates for NR MIMO OTA in 3GPP TSG-RAN.WG4 Meeting
The 3GPP TSG-RAN.WG4 Meeting discussed approval for the NR MIMO OTA workplan, addressed FR2 blocking issues, and emphasized the use of polarized antenna models. Updates were made to the power validation procedure and gNB beams usage criteria for FR1 MIMO OTA channel model validation. Collaboration w
1 views • 8 slides
Discussion on Enabling MIMO in IMMW: IEEE 802.11-23/1991
Enabling MIMO in mmWave technology is essential for improving throughput performance. While IEEE 802.11ad supports single-stream communications, 802.11ay introduces SU-MIMO, MU-MIMO, and hybrid beamforming. This document discusses the necessity of MIMO in IMMW and explores various MIMO options for e
2 views • 12 slides
Reduction of Feedback Overhead in IEEE 802.11be
Discussion on reducing channel acquisition overhead to support 16 Spatial Stream MIMO and Multi-AP coordination in IEEE 802.11be. Methods include limiting feedback information, using implicit feedback in reciprocal systems, and improving explicit and implicit feedback schemes.
0 views • 14 slides
Evaluation of IEEE 802.11ax for IMT-2020 eMBB Dense Urban Test Environment
This document discusses the evaluation of IEEE 802.11ax technology in the context of the IMT-2020 Enhanced Mobile Broadband (eMBB) Dense Urban test environment. It analyzes the performance of 802.11ax in meeting the key PHY/MAC metrics required for eMBB Dense Urban scenarios, such as Peak Spectral E
2 views • 13 slides
Enhancing RF Requirements for Rel-17 Tx Switching in 3GPP Meeting #97e
The electronic meeting of 3GPP TSG-RAN-WG4 discussed new proposals for RF requirements enhancement in Rel-17, focusing on 2Tx-2Tx switching between carriers and power boosting for UL CA. The meeting addressed switching period lengths, DL interruption applicability, UE capabilities, and MIMO support
0 views • 8 slides
Safeguarding Procedures in Wales for Reporting Concerns
Safeguarding procedures in Wales outline how to respond to concerns about individuals in positions of trust with children or adults at risk. Everyone has a responsibility to report safeguarding concerns, including concerns about practitioners, regardless of their status or authority. These procedure
2 views • 31 slides
Exploring 5G Smartphone RF Front End Technology
Delve into the world of 5G smartphone RF front end technology covering aspects like 4G/5G dual connectivity, path loss in radio links, frequency plan, channel capacity, front end architecture, MIMO modules, envelope tracking power amplifier, and more. Discover the features of 5G RF front end includi
1 views • 19 slides
Effective Communication Tool for Addressing Concerns: The CUSS Technique
The CUSS Communication Tool @SAFE_QI is a technique that promotes a graded assertiveness approach to addressing concerns in healthcare settings. It provides a structured method for individuals to escalate their concerns if not initially addressed, using trigger words like Concern, Uncomfortable, unS
0 views • 8 slides
Contiguous UL CA Architecture Overview
This document discusses the architecture and capabilities of intra-band contiguous UL carrier aggregation, focusing on issues related to multiple transmit chains, MIMO support, and potential MPR improvements. It also covers topics like ACLR MBW position, inner and outer contiguous allocation definit
4 views • 15 slides
IEEE 802.11 MU-MIMO Considerations and Test Results
This document from January 2021 discusses considerations and test results related to IEEE 802.11 MU-MIMO (Multi-User Multiple Input Multiple Output) technology. It covers field test results, test setups, test scenarios, observations, and conclusions regarding supported NSS (Number of Spatial Streams
3 views • 22 slides
Way Forward for Enhancing UE Power/Coverage with Proximity Sensing in 3GPP Meeting
The document outlines tentative agreements for the enhancement of UE power/coverage through body proximity sensing in the 3GPP meeting. It discusses the completion of Phase I study and initiation of Phase II work, specifying UL gap configurations, interruption requirements, UE capabilities, and test
0 views • 8 slides
Spatial Stream Allocation in IEEE 802.11-20 Trigger Frames
The document discusses spatial stream allocation in IEEE 802.11-20 trigger frames, specifically focusing on the SS Allocation subfield. It explains how trigger frames allocate resources for TB PPDU transmissions and solicit User Info fields, detailing the RU Allocation and SS Allocation subfields. T
3 views • 15 slides
Enhancing Energy Efficiency in IEEE 802.11 HEW Standard
The document discusses the focus on improving energy efficiency in the IEEE 802.11 HEW standard to enhance the performance of wireless networks, aiming to complement LTE-based mobile networks. It emphasizes real-world spectrum efficiency enhancements and throughput improvements, particularly in indo
2 views • 7 slides
Future Challenges: Enhancing Mobile Broadband Connectivity
Insights from a 2009 FCC field broadband hearing reveal the growing reliance on mobile internet access in the U.S. The discussion covers the limitations of current technology, the need for more spectrum, advances like MIMO and network coding, and potential solutions for improved connectivity. The fo
0 views • 9 slides
Enhancing DL MU-MIMO with Improved Precoding Techniques
In this document, Dzevdan Kapetanovic from Ericsson discusses the limitations of standard DL MU-MIMO precoding for BPSK and proposes enhanced precoding and decoding methods for better performance. By applying these strategies to complex-valued alphabets, significant improvements are observed based o
2 views • 12 slides
Discussion on Rank Adaptation for SU-MIMO Transmission in IEEE 802.11-17/1253
MIMO transmission in IEEE 802.11ay supports up to 8 data streams with a focus on SU-MIMO. The need for efficient rank adaptation procedures and corresponding signaling mechanisms is highlighted. The document addresses rank adaptation procedures, example implementations, challenges faced, and propose
0 views • 6 slides
PDSCH Demodulation Parameters & Requirements Discussion
This document covers the discussion on PDSCH demodulation parameters and requirements for UE demodulation and CSI reporting in FR2 DL 256QAM, specifically focusing on static channel mode, TDL-D channel mode, and TDL-A channel mode. The document also explores rank options, channel bandwidth, PRB allo
0 views • 9 slides
Enhancing BSS Load Management in 802.11ax Networks
Proposed changes to address load balancing issues in dense 802.11ax scenarios by introducing a new information element for BSS Load. The new element considers OFDMA utilization, UL/DL MU-MIMO, and allows for future extensions to ensure efficient AP selection by unassociated STAs. Enhancements aim to
0 views • 14 slides
3GPP TSG-RAN-WG4#95-e Meeting Summary: Power Class Requirements and Way Forward Decisions
During the 3GPP TSG-RAN-WG4#95-e meeting, discussions were held on power class requirements, UL MIMO, and other related topics. The meeting covered various options for setting up TxD requirements, focusing on Release 16 independence, UL MIMO emission requirements for R15, NSA NR power class clarific
0 views • 6 slides
Enhancements in Multi-Stage Beamforming Training for IEEE 802.11ay
IEEE 802.11ay introduces improvements in beamforming training procedures for efficiency and MIMO support. The multi-stage, multi-resolution beamforming training framework enhances beamforming efficiency with high-resolution beams. The proposal includes a Sector Sweep frame and support for up to 2048
0 views • 19 slides
Opportunistic Beam Training with Hybrid Analog/Digital Codebooks in mmWave Systems
This research focuses on utilizing hybrid analog/digital codebooks for beam training in millimeter-wave (mmWave) systems, addressing the need for efficient channel estimation and high directivity at mmWave frequencies. The study discusses system models, proposed training algorithms, codebook designs
0 views • 19 slides
Impact of Tx EVM on MIMO Detection Follow-Up
This document discusses the impact of Tx EVM on MIMO detection, highlighting that improving Tx EVM can achieve theoretical gains in nonlinear detection. It addresses questions raised during discussions and presents an optimal detector scenario in the presence of colored noise from Tx EVM. Simulation
0 views • 14 slides
Assessing Concerns and Leading Pedagogical Innovation in Higher Education: A Case Study of Arthur Lok Jack Graduate School of Business
This case study explores the implementation of the philosophy of Authentic Teaching and Learning at a business school, addressing concerns and preparedness for innovation. Research questions focus on faculty support and interventions based on faculty concerns. The Concerns-Based Adoption Model is ap
0 views • 26 slides
Safeguarding Concerns and Procedures in Youth Custody Services
This presentation addresses safeguarding concerns, referrals, allegations, and complaints in Youth Custody Services. It explains the process for raising concerns, involving external stakeholders, and ensuring the quality of care provided to youth in custody. The background outlines the establishment
0 views • 18 slides
3GPP TSG-RAN WG4 #99-e Meeting Document Summary
Approval agenda items discussed in the 3GPP TSG-RAN WG4 #99-e meeting included enhancements for UL gap for FR2, issues related to Tx power management, recommendations on RAN configurations, and coherent UL MIMO. The documents and images shared highlight key agreements and discussions on various topi
0 views • 7 slides
Analysis of MIMO for IMMW Transmission in IEEE 802.11-24
Proposal discusses the suitability of MIMO for IMMW transmission under different scenarios. The analysis focuses on the number of spatial streams based on channel rank and quality, recommending dual-polarization for LOS paths supporting 2 spatial streams and spatial separation for larger devices sup
0 views • 16 slides
Insights on Improving Reliability in Next-Gen WiFi Networks
Delve into enhancing reliability in next-generation WiFi networks through optimization strategies focusing on key areas like MIMO/TXBF concerns, throughput/data rate improvements, and reducing overhead feedback. Explore ways for the WiFi community to collaboratively address existing challenges and i
0 views • 12 slides
Energy Efficient Relay Antenna Selection for AF MIMO Two-Way Relay Channels
The study explores energy-efficient relay antenna selection for AF MIMO two-way relay channels, aiming to optimize energy efficiency while maintaining performance. It discusses the advantages and disadvantages of two-way MIMO relay systems, emphasizing higher spectral efficiency, improved reliabilit
0 views • 17 slides
Comprehensive Analysis of Full-Duplex Massive MIMO Cellular Networks with Low-Resolution ADCs/DACs
Explore the feasibility and advantages of full-duplex massive MIMO technology in cellular networks, focusing on enhancing spectral efficiency, reducing latency, and improving reliability. Discuss challenges such as self-interference and propose solutions like using low-resolution ADCs/DACs. The stud
0 views • 8 slides
Understanding MIMO and Spatial Multiplexing in Wireless Networks
Graphical intuition and physical modeling of SIMO and MIMO channels, addressing the problem of wireless interference and leveraging multiple antennas for improved reception. Exploring concepts like zero-forcing receivers and spatial multiplexing for increased capacity and rate speed-up in wireless c
0 views • 38 slides
Performance Analysis of Robust Transmission Modes for MIMO in 11ay
This presentation by Intel Corporation discusses the performance analysis of robust transmission modes for MIMO using MRC 1x2, Alamouti 2x1, and Alamouti 2x2 schemes in IEEE 802.11-16/0632r1. It evaluates the performance of OFDM and SC signal structures in frequency flat and frequency selective Rayl
0 views • 17 slides
3GPP TSG-RAN4 Meeting #96e - Way Forward on PMI Reporting Requirements
Approval document for addressing PMI reporting requirements for Tx ports larger than 8 and up to 32 by Ericsson and Samsung discussed during 3GPP TSG-RAN4 Meeting #96e. The timeline includes agreements from previous meetings (#92, #92bis, #93, #94e, #94e-Bis, #95e) along with simulation assumptions
0 views • 11 slides