High-Level Thoughts on Integrated mmWave Communication for WLAN Solutions
Market demands for WLAN solutions supporting high throughput and low latency applications have led to the development of Integrated mmWave (IMMW). This project focuses on integrating the mmwave band with sub-7GHz links to overcome range, mobility, and reliability challenges. IMMW aims to harmonize d
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Understanding Frequency Weighting in Noise Pollution Measurement
Frequency weighting is essential in noise pollution measurement to reflect how the human ear perceives noise. The A, C, and Z weightings are commonly used to represent different frequency responses. A-weighting covers the audible frequencies where the human ear is most sensitive, while C-weighting i
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Bluetooth SIG September 2023 Update on Spectrum Sharing Plans
Bluetooth SIG provided an update on their actions and plans for sharing the 5 and 6 GHz bands with incumbents and unlicensed devices. They aim to collaborate with the Wi-Fi industry to enable equitable sharing for Bluetooth, particularly focusing on the 6 GHz band. The overall plan includes forming
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Load Frequency Control in Power Systems
Electric power systems require Load Frequency Control (LFC) to maintain a uniform frequency, distribute load among generators, and manage tie-line interchange schedules. LFC detects frequency changes, generates real power commands to adjust torque, and ensures stability within specified limits. Reas
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Revising ETSI Standard for License-Exempt Operation in 6 GHz Band
Work has commenced on revising the ETSI standard EN 303.687 for license-exempt operation in the 6 GHz band to expedite completion. This revision project outlines the history, New Work Item approval, ETSI processes, and the upcoming steps. It traces back to 2017 when Switzerland and ECC administratio
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Update on Bluetooth SIG's Spectrum Sharing Plans
This update discusses Bluetooth SIG's actions and plans for sharing the 5 and 6 GHz bands with incumbents and unlicensed devices. It highlights the goals, the overall plan, recent actions, and collaboration with the Wi-Fi industry to enable equitable sharing of these bands. The detailed plan involve
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Update on Bluetooth SIG's Plans for Spectrum Sharing in January 2024
Bluetooth SIG presents an update on their actions and plans for sharing the 5 and 6 GHz bands with incumbents and unlicensed devices. Recognizing the need for future growth, they aim to collaborate with the Wi-Fi industry to develop optimal sharing mechanisms in the 6 GHz band. Their plan includes c
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IEEE 802.11-20/0668r1: EHT BSS Configuration Proposal
The document discusses the configuration of a 320 MHz BSS in the context of 6 GHz regulations, focusing on EHT operation elements such as channel width indication, CCFS principles, and BSS advertisement settings. It proposes design principles for managing legacy and EHT STA operations, emphasizing s
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Coexistence Challenges and Solutions in 6 GHz Networks
Various submissions address narrowband (NB) coexistence issues in the 6 GHz frequency band, focusing on Enhanced Detect and Avoid (eDAA) mechanisms to ensure harmonious coexistence between Wi-Fi and NB devices. The proposals discuss channel access rules, interference measurements, simulation results
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Understanding Sub-Letting in Rental Properties
Assured tenancies come with a statutory prohibition on sub-letting under the Housing Act 1988. If a tenant sub-lets, they breach their contract with the landlord, potentially leading to possession orders. The sub-tenants have a legal status, but the contractual relationship for paying rent lies with
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Impact of Frequency Oscillation on Generator Operation: Emergency Conditions Analysis
Analyzing the impact of frequency oscillation and low frequency on generator operation during emergency conditions. Investigating how lower frequency affects units' ability to respond to deviations, system stability, and load shedding processes. Examining system responses during Energy Emergency Ale
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Clear Channel Assessment (CCA) Behavior of Commercial Wi-Fi Equipment
This document, dated July 2022, delves into the Clear Channel Assessment (CCA) behavior of commercial Wi-Fi equipment in response to Narrowband Frequency Hopping (NB FH) signals. It explores the regulatory framework around license-exempt frequency bands in the USA and Europe, highlighting the specif
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Understanding Transmission Operator Obligations in Under-Frequency Load Shedding
ERCOT Compliance ensures that Transmission System Operators (TSOs) and Distribution System Operators (DSOs) have automatic under-frequency load shedding circuits in place to provide load relief during under-frequency events. The TSOs are required to shed a specific percentage of their connected load
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Coordinated AP Time/Frequency Sharing in IEEE 802.11be
The document discusses the concept of Coordinated AP (CAP) Time/Frequency Sharing within a Transmit Opportunity (TXOP) in the IEEE 802.11be standard. It explains the procedures of Frequency and Time resource sharing, highlighting the benefits such as latency improvement and throughput fairness. Deta
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PSD-based Energy Detect Threshold (EDT) in ETSI 5 GHz Standard
ETSI BRAN adopted a PSD-based EDT into the 5 GHz standard, specifying thresholds for energy detection levels. The new definition replaces the previous -72 dBm/20 MHz EDT, offering a compromise between power limits and channel configurations. Detailed examples and operational guidelines are provided
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Coexistence in 6 GHz License-Exempt Spectrum - IEEE 802.11-19/1083r1
This document discusses the principles and key features of unlicensed spectrum in the 6 GHz frequency band, focusing on coexistence with incumbent services, spectrum efficiency, and regulatory discussions. It also delves into channel access design for 3GPP technologies in the 5 GHz band, highlightin
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Considerations on PHY for 60 GHz in IEEE 802.11-22/1865r0 Document
The document discusses the possibility of standardizing multi-link (ML) with bands in the sub-7 GHz range combined with bands in the 45-72 GHz range, proposing reusing a sub-7 GHz PHY for mmWave bands. It explores the impact of phase noise on choosing the OFDM numerology for operation in the 45-72 G
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Considerations on 6 GHz Discovery for IEEE 802.11-18/1922r0
IEEE 802.11-18/1922r0 document discusses the background and regulatory context for supporting 6 GHz operation in 802.11ax networks. It focuses on optimizing the discovery process for 6 GHz channels to enhance STA and network KPIs. The typical scanning/discovery procedure for non-AP STAs is outlined,
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Analysis of Low-Frequency Response in BJT and FET Amplifiers
This analysis delves into the low-frequency response of BJT and FET amplifiers, examining the impact of various components such as resistors and capacitors on the cutoff frequencies. Detailed examples illustrate the calculation process for determining these frequencies based on specific parameters.
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Key Coexistence Issues in 5-7 GHz Unlicensed Spectrum for NR Sidelink Evolution
3GPP RAN1 is extending NR sidelink operation to 5-7 GHz unlicensed spectrum, raising concerns about channel access and physical design. Discussions include Listen Before Talk protocols, UE-to-UE COT sharing, and coexistence with WiFi technologies. The study aims to specify support for sidelink on un
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Insights from ET-ISB Workshop on Low-Frequency Noise and GWADW 2021
The ET Instrument Science Board held a workshop focusing on addressing key challenges related to low-frequency noise in gravitational wave detectors. Experts discussed topics such as mirror temperature, dealing with low-frequency noise realities, and facility limits. The workshop highlighted the sig
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High Frequency Market Microstructure - A Comprehensive Overview
Delve into the intricate world of high-frequency market microstructure with a detailed exploration of how traders operate, market structures, regulatory influences, and the evolution of trading platforms. Uncover the birth of High-Frequency Trading (HFT), the strategies employed by high-frequency tr
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Reassessing Scholarly and Sub-Scientific Mathematical Cultures
Scholarly and sub-scientific mathematical cultures are reevaluated through the works of Jens Hoyrup, focusing on the organized nature of sub-scientific knowledge. The distinction between theoretical and practical knowledge, applications to mathematical cultures, and misconceptions related to the sup
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Understanding Two-Way Frequency Tables in Data Analysis
Explore the concept of representing and interpreting data in two variables using two-way frequency tables. Learn about joint frequency, marginal frequency, and conditional relative frequency through a practical example involving gender and nail services. Discover how to target specific audiences bas
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Understanding Magnetic Shielding Considerations for 3.9 GHz Cavities
This document discusses Q and magnetic shielding considerations for 3.9 GHz cavities used in the LCLS-II project, highlighting the unique behavior observed in nitrogen-treated cavities. The study delves into the improved Q values and field dependence of quality factors, challenging traditional niobi
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802.11aj 45 GHz Channel Access and BSS Operation Framework Proposal
This document outlines a proposal for channel operation and BSS operation in the 45 GHz frequency bands for 802.11aj in China. It includes details on channelization, spectrum allocation, maximum transmit power, and BSS configuration rules. The aim is to meet the functional requirements specified whi
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Beyond 802.11ad: Ultra High Capacity and Throughput WLAN
The document from January 2014 discusses the exploration of modifications to IEEE 802.11ad-2012 PHY and MAC layers to enable modes of operation in the 60 GHz band capable of achieving a maximum throughput of at least 30 Gbps while maintaining the band's excellent capacity attributes. Topics include
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Classification of Class Aves and its Sub-Classes
Class Aves is divided into two sub-classes based on characteristics like teeth, claws, and bone structure. The sub-classes are Archaeornithes and Neornithes, each with distinct features and orders. Archaeornithes include the extinct order Archaeopterigiforms, exhibiting reptilian and avian traits. N
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Overview of Satellite Communication Sub-systems in ECE 5233: Satellite Communications
This content provides insights into satellite communication sub-systems such as transponders, antenna systems, and frequency plans. It covers topics like double conversion transponders, regenerative transponders, and examples of frequency allocation in satellite transponders. The detailed block diag
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Parameterized Model for Doppler Spread in mmWave Systems
This document presents a parameterized model for Doppler spread in mmWave systems based on measurements with an 83 GHz channel sounder. The model is linked to the Quasi-deterministic (QD) propagation channel model adopted by the work group. It discusses Doppler frequency shift, channel sounder confi
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IEEE 802.11-16/xxxxr0 August 2016 Discussion Summary
The document discusses comments and proposed resolutions regarding user data, different bands, operation, and latency in IEEE 802.11-16/xxxxr0. Various categories like wake-up packets, band definitions for 2.4 GHz and 5 GHz, radio transitions, and ongoing latency discussions are tackled in this Augu
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2.4 GHz CubeSat Communications System Overview
The 2.4 GHz CubeSat Communications System, led by Robert Bui, aims to establish a reliable data link between the SDS-1 Cube Satellite and the ASU ground station. Operating on the 13 cm amateur ham radio band at frequencies of 2400-2450 MHz, the system utilizes a Transceiver (MHX-2420) with a link ra
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Draft Channel Plan of 500-GHz Fixed Wireless System for Ultra-High-Definition Surveillance
Proposed is a draft channel plan for a 500-GHz fixed wireless system suitable for ultra-high-definition surveillance applications in smart industries and public transportation. This system aims to enable high-capacity data transmission with low spectrum interference in short-distance links, offering
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Analysis of ACLR MBW Definition Alignment Between FR1 and FR2 in 3GPP TSG-RAN WG4 Meeting #94-e-bis
The discussion in the 3GPP TSG-RAN WG4 Meeting #94-e-bis focused on aligning the ACLR Measurement Bandwidth (MBW) definition between Frequency Range 1 (FR1) and Frequency Range 2 (FR2). Issues were raised regarding the current MBW specification, particularly in capturing the transmission signal full
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The Importance of Sub-Editing in Journalism
Sub-editing plays a crucial role in journalism by enhancing news stories for clarity, accuracy, and readability. Reporters provide the content, but sub-editors refine it to align with publication policies and style. Editing involves more than just fixing grammar and factual errors; it shapes the ess
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Considerations for Dynamic Sub-band Operation Switch Delay in IEEE 802.11-23/2027r1
This document addresses issues related to sub-band switch delay in Dynamic Sub-band Operation (DSO) within IEEE 802.11-23/2027r1. It proposes strategies like no-ACK initial control frames and follow-up frames to manage channel reservations for DSO sub-band switches efficiently.
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Relevance of Lean PHY for EHT in 6 GHz
Discussing the importance of a Lean PHY for EHT in 6 GHz to improve spectrum efficiency and reduce overhead. Introducing the Low Throughput PHY as a potential solution, highlighting its benefits compared to existing options like 802.11a. Measurement results show the impact and potential for enhancin
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Next-Generation 60 GHz Peak Data Rate Technologies
This presentation delves into the exploration of potential technologies to meet the peak data rate requirements of NG-60, focusing on enhancements to IEEE 802.11 physical and medium access control layers. Various channel bonding scenarios and achievable peak data rates are discussed, aiming to reach
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CSMA Gap Analysis Between IEEE 802.15.4 and Japanese Standard JJ-300.10
This document analyzes the differences in CSMA protocol and performance between IEEE 802.15.4 and Japanese Standard JJ-300.10, focusing on unique issues related to Japanese Sub-1 GHz frequency regulations and metering systems. With increasing data traffic and channel access demands, insights are pro
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Understanding Millimeter Wave Regulation and FCC Restricted Bands
Overview of millimeter wave regulation by IEEE and FCC, including restricted bands, radar rules, advantages and disadvantages of millimeter wave signals, and FCC rules on restricted bands above 38.6 GHz. Details on communication bands, power regulations, and proposals for unlicensed usage in the 57-
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