Tdd channel access - PowerPoint PPT Presentation


Channel Design

Channel design involves creating a plan for the efficient distribution and movement of products and services from the producer to the customer. This process includes determining the channel flow, identifying channel members, setting channel objectives, and developing a channel strategy.

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Sales Leadership Management

Marketing channel decisions play a crucial role in the success or failure of products in both B2C and B2B markets. This chapter explores the importance of effective channel management, types of channels, the role of intermediaries in streamlining transactions, and the distinction between marketing c

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Understanding Channel Design in Marketing

Channel design involves planning the distribution of products and services from producers to customers through different business entities or individuals. It encompasses elements like channel flow, channel members, objectives, alternatives, and strategy. Successful channel design aligns with busines

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ML-Aided Channel Classification for WLAN Optimization

The paper discusses using machine learning to classify IEEE channel models and improve WLAN performance. It demonstrates how neural networks can accurately classify channel types, leading to efficient beamforming and signal processing. Simulation results show the classification performance even at l

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Spectrum Sensing for Enhanced Channel Access in Wireless Networks

This document presents a proposal for Spectrum Sensing Based Deferral (SSBD) to improve channel access in wireless networks. SSBD incorporates spectrum sensing with transmission deferral in a time-bound manner to enhance performance, reliability, and latency control. The proposed solution safeguards

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IEEE 802.11-23/1913r1 Secondary Channel Access Operation

The document discusses the need for a secondary channel access (SCA) mechanism in IEEE 802.11bn to improve efficiency in wide bandwidth utilization. It covers the operation of SCA, technical issues, and solutions for successful frame exchange. Various considerations such as timing issues, medium syn

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Successful Channel Modification Techniques and Benefits

Channel modification projects aim to accelerate the recovery of stable, sustainable channel forms in dynamic balance with sediment, large wood, and flow regimes. Successful modifications lead to improved habitat quality, stability, and diversity, benefiting sediment transport and riparian zones. Phy

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IEEE 802.11-19/1517r0 TDD Beamforming Configuration Overview

IEEE 802.11-19/1517r0 discusses TDD beamforming operations related to Beam Measurement in the standard. Before Draft 4.0, these operations were primarily initiated by SME, causing limitations due to proprietary network controllers. The document reviews gaps and improvements in TDD beamforming, aimin

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Effective Channel Management Decisions for Marketing Success

The success of marketing channels lies in making right channel design decisions and effectively implementing them through channel management decisions. From selecting channel members to training and motivating them, companies must focus on building strong partnerships to drive success in the competi

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Understanding Channel Conflict in Marketing

Channel conflict in marketing refers to disputes between different channel partners, such as manufacturers, wholesalers, and retailers, that impact business operations and goals. These conflicts can arise at different levels within the distribution channel, leading to issues like price wars, custome

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Adapting the 802.11be Channel Model for Modern Doppler Use-Cases

The document discusses the adaptation of the 802.11be channel model to modern scenarios where devices are mobile. It explores the impact of movement on channel models, providing lab measurement results of Doppler Power Spectral Density. The study aims to enhance the evaluation of communication schem

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Multi-band Discovery Assistance for IEEE 802.11ay Networks

This document discusses the implementation of multi-band discovery assistance for IEEE 802.11ay networks to improve robustness and reduce latency in consumer devices. It focuses on reducing overhead latency, enabling TDD channel access, and utilizing multi-band signaling for various network operatio

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The THz Channel Model in Wireless Data Center

This contribution presents preliminary THz channel modeling results for future wireless data center scenarios. Ray tracing simulations are conducted for various channel types, utilizing RMS delay spread and RMS angular spread to measure multipath richness. A stochastic channel model is developed and

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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

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Acknowledgment Mechanism for mmWave Distribution Networks

This document discusses the proposal for an Acknowledgment (Ack) and Block Acknowledgment (BA) mechanism for Time Division Duplex (TDD) Channel Access in mmWave Distribution Networks. The requirements for sending Ack/BA in different slot structures to accommodate various traffic profiles are outline

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IEEE 802.11-24/0858r0: Key Concepts on NPCA and Virtual APs

This document discusses key concepts related to NPCA (Neighbor-Primary Channel Announcement) and Virtual Access Points (APs) in the context of IEEE 802.11 standards. It covers topics such as multiple BSSID sets, co-hosted APs, NPCA primary channel configurations, and criteria for channel switching.

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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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IEEE 802.11-24/1305r0: High Duty Cycle NB Transmission vs. Wi-Fi

Discusses the impact of multiple high duty cycle NB connections on Wi-Fi channel access latency, proposing solutions such as prioritizing specific unused channels and enforcing stricter channel access requirements. The presentation highlights the challenges faced and potential remedies to improve ch

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Further Considerations on Advanced Channel Coding for 15.4ab

This document submitted to the IEEE P802.15 Working Group discusses the importance of advanced channel coding for IEEE 802.15.4ab standard to achieve higher throughput and reliability. It outlines technical guidance on proposed solutions, safeguards, interference mitigation techniques, and backward

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Review of FR1 REFSENS Table in 3GPP TSG-RAN-WG4 Meeting #99-e

The 3GPP TSG-RAN-WG4 Meeting #99-e discussed the need to simplify the FR1 REFSENS table due to the expansion caused by new channel bandwidths. Various options were proposed, including equation-based representation for TDD bands and considering the impact on RAN5 specifications. The meeting aimed to

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Channel Access Simulation Study for Bluetooth-Wi-Fi Coexistence in IEEE 802.11-23

A detailed simulation study was conducted to analyze the coexistence of Bluetooth and Wi-Fi in the IEEE 802.11-23 standard. The study covered aspects such as channel access, transmission setup, Bluetooth-Wi-Fi interactions, impact on latency, throughput, and observations on performance under various

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Proposal for Improved Channel Access Efficiency in IEEE 802.11 Networks

The proposal addresses the inefficiencies in utilizing secondary channels in IEEE 802.11 networks, aiming to enhance access to wideband channels (>20 MHz) when the primary channel is busy. It introduces a mechanism for APs and STAs to access available secondary channels while the primary channel is

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Specific Parameters for DL Interruptions in 5G Network Testing

Detailed discussion and guidelines for verifying symbol-level DL interruptions in 5G network testing scenarios such as switching between LTE and NR carriers, inter-band ENDC TDD configuration, and FDD-TDD CA (SA) TDD configuration. The document covers specific parameters, test options, and symbol ve

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IEEE 802.11-24/0070r1 Presentation on Non-Primary Channel Access

This presentation discusses the concept of using secondary channels for PPDU transmission in IEEE 802.11 networks to improve efficiency in large bandwidth scenarios. It covers topics such as channel access, backoff mechanisms, and channel switching thresholds. Design principles emphasize minimal imp

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Approval Workflow for NR Repeaters EMC Requirements

An electronic meeting was held to discuss the approval workflow for NR repeaters' EMC requirements. The meeting focused on core requirements for TDD and FDD NR repeater EMC, referencing CISPR or IEC specifications for various EMC requirements. Different options were considered for test conditions an

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Proposed MAP Channel Access Procedures in IEEE 802.11-24/72r0

In the May 2024 document IEEE 802.11-24/72r0, a uniform MAP coordination framework is discussed, involving procedures like M-AP discovery, coordinated transmissions, and channel access mechanisms. All APs in a coordination group can compete for channel access and share transmission opportunities. Th

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Optimizing Channel Selection for Seizure Detection with Deep Learning Algorithm

Investigating the impact of different channel configurations in detecting artifacts in scalp EEG records for seizure detection. A deep learning algorithm, CNN/LSTM, was employed on various channel setups to minimize loss of spatial information. Results show sensitivities between 33%-37% with false a

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Enhanced Distributed Channel Access (EDCA) for Non-Primary Channel in IEEE 802.11

Discussion on implementing EDCA for Non-Primary Channel Access (NPCA) in IEEE 802.11, focusing on mitigating frame collisions and enhancing medium efficiency. Various considerations for EDCA procedure on the Non-Primary Channel (NPCH) are explored to optimize channel access and reduce wastage. Topic

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IEEE 802.11-23/1935r0 - Secondary Channel Usage Discussions

Explore the discussions on secondary channel usage in IEEE 802.11-23/1935r0, including topics like RU index, BW negotiation, avoiding medium synchronization loss, and single/multiple secondary backoff 20MHz channels. Discover insights on non-primary backoff 20MHz channel locations, transitioning del

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Multi-band Discovery Assistance for Consumer Devices

Robustness and latency are critical for consumer devices. This contribution proposes a solution utilizing multi-band capability to enable TDD mode without human triggering, focusing on efficient beacon transmission and discovery assistance in both TDD and non-TDD modes for optimal performance and re

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Dynamic Channel Switch Operation in IEEE 802.11-24 Standard

STAs in IEEE 802.11-24 can dynamically switch to secondary channels per the AP's request for frame exchanges. The process involves soliciting control frames, determining parking channels, managing frame exchanges, and switching back to the primary channel at the end of a TXOP. Various examples illus

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Channel Generation Process for IEEE 802.11aj (45GHz) Based on Channel Measurement

This presentation by Haiming Wang and team from SEU/CWPAN discusses the process of channel realization and generation in the 45 GHz bandwidth. It covers the generation of the channel impulse response, modeling of parameters, statistical measurements, and future work related to the 802.11ad standard.

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Addressing Issues in Secondary Channel Access for IEEE 802.11-24 Networks

This submission for IEEE 802.11-24 discusses the potential issues and solutions related to secondary channel access (SCA) in UHR/11bn networks. The focus is on coordinating access points (APs) and stations (STAs) to optimize channel utilization without causing interference. The challenges include de

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IEEE 802.11-15/0364: Channel Estimation Considerations in Wi-Fi Standards

Channel estimation in IEEE 802.11 standards, such as 11n, 11ac, and 11ax, is crucial for efficient MIMO systems. The noise impact during data reception affects the quality of the channel estimate, leading to SNR reduction post-equalizer. Techniques like channel smoothing and averaging of training se

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Managing Channel Information for Wireless Communication Systems

This document from September 2015 discusses issues related to updating channel information in wireless communication systems, focusing on MU-MIMO and TxBF precoding techniques. It explains the challenges of channel aging, the importance of refreshing channel information, and the impact of different

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Enhancing Spectral Efficiency Through Nonprimary Channel Access in IEEE 802.11

IEEE 802.11 is exploring nonprimary channel access to address underutilization of spectrum and improve latency and throughput. This approach involves enabling nonprimary channel access with simple modifications to existing rules, such as limiting TXOP duration and using control frames for coordinati

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Overview of UE RF Requirements for 35/45MHz Channel Bandwidth in 3GPP Meeting #97-e

The document discusses the introduction of 35/45MHz channel bandwidth in UE RF requirements for various bands. It covers equation-based requirements and limitations in UL configurations based on bandwidth allocation. The scope includes capturing content from the first round discussions and clarifyin

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Understanding Open Channel Hydraulics: Types of Channels, Flows, and More

Gain insights into open channel hydraulics covering topics like types of channels, various flows, velocity distribution, discharge mechanisms, and economical channel sections. Delve deeper into specific energy, hydraulic jump, gradually varied flow, and the distinction between steady/unsteady and un

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UL Sync Channel Access Procedure in IEEE 802.11-20/1730r1

The document discusses the UL sync channel access procedure in IEEE 802.11, focusing on the conditions under which an STA affiliated with an MLD can initiate transmission, manage its backoff counter, and follow specific rules for accessing the channel. It proposes a straw poll to gather support for

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Multi Division in Networking: Access Methods & Duplexing Techniques

Reviewing the concepts of multi-division in networking, this content delves into the need for multiple control channels, challenges in sharing channels, techniques like ALOHA and CSMA, and the importance of control channels and data channels. It explores access methods for control and data channels,

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