分类：基础和培训    下载：1    浏览：33    时间：2026-04-10

本书内容 Wi-Fi 标准发展至今已经超过 20 年，前几代 Wi-Fi 标准主要专注在提升速率上，而从 Wi-Fi 6 开始更加关注高密场景下的用户性能提升。Wi-Fi 6 标准通过引入OFDMA、上行 MU-MIMO、BSS Coloring、TWT 等新技术，性能上得到跨越式提升，带宽和并发用户数相比 Wi-Fi 5 提升了 4 倍，并且时延更低、更节能。 在本书中，将以无线网络所面临的业务挑战为切入点，为您介绍 Wi-Fi 标准的演进和最新标准 Wi-Fi 6 引入的新技术。同时本书还会让您了解在网络升级到 Wi-Fi 6 时的一些常见问题，Wi-Fi 6 的典型应用，以及华为推出的新一代 Wi-Fi 6 AP 产品。最后，本书还将还为您介绍 Wi-Fi 6 的增强版本 Wi-Fi 6E。 主编简介 周霞，华为 WLAN 产品资料工程师，2010 年加入华为，具有 11 年园区网络产品资料开发经验，负责过华为数据中心交换机产品、WLAN 产品以及园区网络解决方案的手册撰写工作。曾参与《企业 WLAN 架构与技术》一书的编写。 读者对象 本文档主要适用于网络工程师等 ICT 从业人员。网络工程师需要具备以下经验和技能：  具备一定的 Wi-Fi 基础知识和操作经验。  在工作中对 Wi-Fi 网络有业务诉求，或是对新一代 Wi-Fi 标准感兴趣。

分类：标准规范    下载：1    浏览：46    时间：2026-04-10

本白皮书将介绍网状网络、802.11s修正案以及Calsoft Labs的无线网状网络解决方案、应用和优势。 1.0. ABSTRACT 2.0. WIRELESS MESH INTRODUCTION 2.1. Basic features of Wireless Mesh Network 2.1.1. Flexibility 2.1.2. Backhaul 2.1.3. Self-forming 2.1.4. Self-healing 2.1.5. Security 2.2. Pros and Cons of Wireless Mesh 2.2.1. Benefits of Wireless Mesh Networking 2.2.2. Issues with Wireless Mesh Networking 3.0. 802.11S WIRELESS MESH SOLUTION 3.1. Architecture Overview 3.2. Forming the Wireless Mesh 3.2.1. Discovery 3.2.2. Peering 3.2.3. Security 3.3. Mesh Path Selection 3.3.1. HWNP 3.3.2.Path Selection Algorithm and Link Metric 3.3.3. Path Selection Modes 3.3.3.1 Reactive Mode 3.3.3.2 Proactive Mode 3.3.4.Frame Format and Address Scheme 4.0. CALSOFT LABS MESH SOLUTION & EXPERTISE 4.1. Technology Expertise 4.2. Calsoft Labs Open 802.11s Based Solution 4.2.1. Open802.11s Porting 4.2.2. Software Architecture for a Mesh AP Node 4.2.3. Features Supported by Open802.11s 4.3. Integrated WLAN Controller Solution for MESH Networks 4.4. Calsoft Product Engineering Services About Calsoft Labs Contents P.no Engineering & Technology Consulting

分类：基础和培训    下载：0    浏览：39    时间：2026-04-10

IEEE 802.11ax白皮书 | 01.00 版 | Lisa Ward 本白皮书介绍了IEEE 802.11标准的IEEE 802.11ax修正案所采用的技术，并概述了接收机和发射机的测试要求。IEEE 802.11ax (也被称为高效无线 (HEW)) 提供了一种机制。在该机制下非授权频段 (2.4 GHz、5 GHz和6 GHz) 可更有效地被使用，并改善用户体验。 1 简介 .3 2 IEEE 802.11ax 核心文档 3 IEEE 802.11ax 目标和特点 4 IEEE 802.11ax (高效率PHY) 4.1 PPDU 格式 4.2 从单用户到多用户（MU 4.2.1 子载波类型 4.2.1.1 未使用的子载波 4.2.1.2 数据子载波 4.2.1.3 导频子载波 4.2.2 OFDMA 下行链路资源单元分配 4.2.3 OFDMA上行链路资源单元分配 4.2.3.1 触发帧公共字段的内容 4.2.3.2 触发帧用户字段的内容 5 IEEE 802.11ax 测量 5.1 IEEE 802.11ax 发射器规范 5.1.1 发射频谱掩码 5.1.2 频谱平坦度 5.1.3 发射器调制准确度 5.1.3.1 发射器本振 (LO) 泄漏 5.1.3.2 误差向量幅度 5.2 HE接收器的要求 5.2.1 接收器最的小输入灵敏度 5.2.2 相邻和非相邻信道干扰 5.2.3 接收器的最大输入电平 5.3 基于 HE 触发器的PPDU预校正规范 5.3.1 发射功率准确性和RSSI 5.3.2 载波频率偏移 (CFO) 误差和定时漂移 6 参考文献

分类：基础和培训    下载：0    浏览：32    时间：2026-04-07

802.11 Wi-Fi Physical Layer and Transmitter Measurements 一张图展示WiFi标准，截止到WiFi5

分类：基础和培训    下载：4    浏览：85    时间：2026-03-19

1 引言 2 Wi-Fi 发展历程 3 Wi-Fi6 关键技术 4 Wi-Fi6 与 5G 5 Wi-Fi6 应用场景 6 Wi-Fi6 技术评测 7 2020 年将是 Wi-Fi6 大规模发展的元年

分类：其它    下载：0    浏览：137    时间：2026-01-28

Abstract—With the emergence of 4k/8k video, the throughput requirement of video delivery will keep grow to tens of Gbps. Other new high-throughput and low-latency video applications including augmented reality (AR), virtual reality (VR), and online gaming, are also proliferating. Due to the related stringent requirements, supporting these applications over wireless local area network (WLAN) is far beyond the capabilities of the new WLAN standard – IEEE 802.11ax. To meet these emerging demands, the IEEE 802.11 will release a new amendment standard IEEE 802.11be – Extremely High Throughput (EHT), also known as Wireless-Fidelity (Wi-Fi) 7. This article provides the comprehensive survey on the key medium access control (MAC) layer techniques and physical layer (PHY) techniques being discussed in the EHT task group, including the channelization and tone plan, multiple resource units (multi-RU) support, 4096 quadrature amplitude modulation (4096-QAM), preamble designs, multiple link operations (e.g., multi-link aggregation and channel access), multiple input multiple output (MIMO) enhancement, multiple access point (multi-AP) coordination (e.g.,multi-AP joint transmission), enhanced link adaptation and retransmission protocols (e.g., hybrid automatic repeat request (HARQ)). This survey covers both the critical technologies being discussed in EHT standard and the related latest progresses from worldwide research. Besides, the potential developments beyond EHT are discussed to provide some possible future research directions for WLAN. Index Terms—IEEE 802.11be, EHT, Wi-Fi 7, Multi-link Operation,Multi-AP Coordination, MIMO Enhancement, HARQ.

分类：其它    下载：0    浏览：99    时间：2026-01-27

Albert Chung Senior Application Engineer Rohde & Schwarz Taiwan WIFI7技术介绍

分类：其它    下载：0    浏览：102    时间：2026-01-24

Abstract—While the pace of commercial scale application of Wi-Fi 6 accelerates, the IEEE 802.11 Working Group is about to complete the development of a new amendment standard IEEE 802.11be – Extremely High Throughput (EHT), also known as Wi-Fi 7, which can be used to meet the demand for the throughput of 4K/8K videos up to tens of Gbps and low-latency video applications such as virtual reality (VR) and augmented reality (AR). Wi-Fi 7 not only scales Wi-Fi 6 with doubled bandwidth, but also supports real-time applications, which brings revolutionary changes to Wi-Fi. In this article, we start by introducing the main objectives and timeline of Wi-Fi 7 and then list the latest key techniques which promote the performance improvement of Wi-Fi 7. Finally, we validate the most critical objectives of Wi-Fi 7 – the potential up to 30 Gbps throughput and lower latency. System-level simulation results suggest that by combining the new techniques, Wi-Fi 7 achieves 30 Gbps throughput and lower latency than Wi-Fi 6. Index Terms—IEEE 802.11be, Wi-Fi 7, timeline, feature,throughput, latency.

分类：其它    下载：0    浏览：95    时间：2026-01-24

Abstract—Last years we have witnessed the uprising of location-based applications, which depend on the device’scapabilities to accurately obtain their position. IEEE 802.11, foretelling the need for such applications, started the IEEE 802.11az work on Next Generation Positioning. Although this standard provides positioning enhancements for sub-6 GHz and mmWave bands, high accuracy in the order of centimeters can only be obtained in the latter band, thanks to the high temporal resolution from the multi-GHz bandwidth. This work presents the new techniques provided by IEEE 802.11az for enhanced secured positioning in the mmWave band. Additionally, this paper assesses 802.11az mmWave accuracy using a novel trigonometry solution, compares it with advanced positioning solutions, and identifies open research challenges. Index Terms—IEEE 802.11 standard, Next Generation Positioning, FTM, EDMG, mmWave

分类：其它    下载：0    浏览：109    时间：2026-01-24

IEEE 802.11 DCF协议性能分析模型 钟萍, 施海彬, 庄玉祥, 石江宏, 陈辉煌 厦门大学信息科学与技术学院, 福建厦门361005 摘要： 提出了一种改进的二维Markov链模型用于分析IEEE 802.11 DCF协议. 该模型不仅考虑实际应用中饱和业务量和非饱和业务量的情况，而且考虑DCF协议的退避计时器的冻结状态和有限的重传次数. 通过对该Markov链模型稳定状态的求解并结合M/M/1/K排队模型，导出了DCF系统性能的理论模型. 仿真结果表明，该理论模型能够精确地预测广义IEEE 802.11 DCF协议的系统性能. 关键词: 无线局域网, IEEE 802.11, 分布式协调功能, Markov链模型 Abstract: This paper proposes an improved two-dimensional Markov chain model for the performance analysis of the IEEE 802.11 DCF protocol. The model is applicable to both saturated and unsaturated traffic conditions. Moreover, it extends the existing models to take into account previously-ignored MAC layer factors such as backoff freezing and limited times of retry. In addition, by deriving the stationary state of the Markov model and considering an M/M/1/K queuing model, we further derive a theoretical model for evaluating performance of the general IEEE 802.11 DCF protocols. Accuracy of the proposed theoretical model is validated with simulation results. Key words: wireless local area network, IEEE 802.11, distributed coordination function, Markov chain model

分类：标准规范    下载：5    浏览：250    时间：2025-07-14

《超宽带（UWB）设备无线电管理暂行规定》附件：超宽带（UWB）无线电发射设备技术要求.pdf 一、工作频率范围 7163-8812MHz。 二、发射信号带宽（-10dB 带宽） 不少于500MHz。 三、等效全向辐射功率谱密度限值 不大于-41dBm/MHz

分类：标准规范    下载：0    浏览：485    时间：2025-05-15

通信开发人员经常需要查看协议，3GPP协议官方查看和下载地址如下：（免费、英文） 索引页面，对文档按照领域进行了分类： http://www.3gpp.org/specifications/specification-numbering 下载规范的FTP根目录 http://www.3gpp.org/ftp/Specs/ 3GPP规范采用WORD文件 的ZIP压缩格式保存，文件 名结构如下： SM[-P[-Q]]-V.zip S=系列号-两位数字（见上表） M=尾数（规范编号中系列号后面的部分）-2或3位数字 P=可选的部分编号-1或2位数字，如果有 Q=可选的子部分编号-1或2位数字，如果有 V=版本号，无分隔点-3位数字