{"id":468,"date":"2025-12-22T17:24:21","date_gmt":"2025-12-22T09:24:21","guid":{"rendered":"https:\/\/www.garfield-blog.top\/?p=468"},"modified":"2025-12-22T17:26:30","modified_gmt":"2025-12-22T09:26:30","slug":"%e3%80%90%e8%af%bb%e4%b9%a6%e7%ac%94%e8%ae%b0%e3%80%91%e3%80%90%e6%97%a0%e7%ba%bf%e6%9d%83%e5%a8%81%e6%8c%87%e5%8d%97%e7%ac%ac%e4%ba%94%e7%89%88%e3%80%91802-11%e6%8e%a7%e5%88%b6%e5%b8%a7-2","status":"publish","type":"post","link":"https:\/\/www.garfield-blog.top\/?p=468","title":{"rendered":"\u3010\u8bfb\u4e66\u7b14\u8bb0\u3011\u3010\u65e0\u7ebf\u6743\u5a01\u6307\u5357\u7b2c\u4e94\u7248\u3011802.11\u63a7\u5236\u5e27"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u6982\u8ff0<\/h2>\n\n\n\n<p>\u4e3a\u4e86\u6269\u5c55\u5e27\u901a\u8fc7\u589e\u52a0\u65b0\u7684\u5b50\u7c7b\u578b\uff0c\u4e3a<code>60GHz<\/code> \u9891\u6bb5\u7279\u6709\u7684\u529f\u80fd(\u5982\u6ce2\u675f\u6210\u5f62\u8bad\u7ec3\u3001\u5b9a\u5411\u901a\u4fe1\u7ba1\u7406)\u63d0\u4f9b\u652f\u6301\uff0c\u540c\u65f6\u4fdd\u6301\u4e0e\u539f\u6709\u5e27\u683c\u5f0f\u7684\u517c\u5bb9\u6027\uff0c\u5f15\u5165\u4e86\u6269\u5c55\u5e27(<code>Extended Frame<\/code>)\uff0c\u5b83\u652f\u6301\u6ce2\u675f\u6210\u5f62(<code>Beamforming<\/code>)\u8bad\u7ec3\u3001\u5b9a\u5411\u94fe\u8def\u7ef4\u62a4\u7b49\u9ad8\u7ea7\u7ba1\u7406\u529f\u80fd\uff0c\u540c\u65f6\u4fdd\u6301\u4e86\u4e0e\u6838\u5fc3<code>802.11<\/code> \u67b6\u6784\u7684\u517c\u5bb9\u6027<\/p>\n\n\n\n<p><code>802.11<\/code>\u5e27\u5728\u5e27\u5934\u7684\u7c7b\u578b\u548c\u5b50\u7c7b\u578b\u5b57\u6bb5\u5171\u540c\u5b9a\u4e49\u4e86\u4e00\u4e2a\u5e27<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7c7b\u578b(Type)\u5b57\u6bb5<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u6bd4\u7279\u503c<\/th><th>\u5e27\u7c7b\u578b<\/th><th>\u4f5c\u7528<\/th><\/tr><\/thead><tbody><tr><td><code>00<\/code><\/td><td>\u7ba1\u7406\u5e27<\/td><td>\u53d1\u73b0\u63a5\u5165\u70b9\u5e76\u52a0\u5165\u57fa\u672c\u670d\u52a1\u96c6<\/td><\/tr><tr><td><code>01<\/code><\/td><td>\u63a7\u5236\u5e27<\/td><td>\u786e\u8ba4\u4f20\u8f93\u6210\u529f\u5e76\u4fdd\u7559\u65e0\u7ebf\u4ecb\u8d28<\/td><\/tr><tr><td><code>10<\/code><\/td><td>\u6570\u636e\u5e27<\/td><td>\u643a\u5e26\u4e0a\u5c42<code>MSDU<\/code>\u51c0\u8377<\/td><\/tr><tr><td><code>11<\/code><\/td><td>\u6269\u5c55\u5e27<\/td><td>\u4e00\u79cd\u65b0\u7684\u3001\u7075\u6d3b\u7684\u5e27\u683c\u5f0f<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u6269\u5c55\u5e27\u5b50\u7c7b\u578b(Subtype)\u5b57\u6bb5<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u6bd4\u7279\u503c<\/th><th>\u5e27\u7c7b\u578b<\/th><th>\u4f5c\u7528<\/th><\/tr><\/thead><tbody><tr><td><code>0000<\/code><\/td><td><strong>\u5b9a\u5411\u4fe1\u6807\u5e27<\/strong>(<code>DMG Beacon<\/code>)<\/td><td>\u7528\u4e8e<code>60 GHz<\/code>\u7f51\u7edc\u4e2d\u6247\u533a\u7ea7\u7684\u540c\u6b65\u548c\u53d1\u73b0<\/td><\/tr><tr><td><code>0001-1111<\/code><\/td><td><strong>\u4fdd\u7559<\/strong>(<code>Reserved<\/code>)<\/td><td>\u4fdd\u7559\u4f9b\u672a\u6765\u4f7f\u7528<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u6269\u5c55\u5e27(Extension frame)\u7684\u683c\u5f0f<\/h2>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u7b14\u8005\u6ce8\uff1a<strong>\u8be6\u60c5\u89c1IEEE 802.11-2016 9.3.4.1<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p><code>Extension frame<\/code>\u7684\u683c\u5f0f\u5982\u56fe\u6240\u793a\u3002\u6269\u5c55\u5e27\u7684<code>MAC<\/code> \u5934\u90e8\u4ee5\u5e27\u63a7\u5236(<code>Frame Control<\/code>)\u5b57\u6bb5\u5f00\u59cb\uff0c\u540e\u63a5<code>Duration<\/code> \u5b57\u6bb5\u3002\u4e0d\u540c\u7c7b\u578b\u7684\u6269\u5c55\u5e27\u5728<code>Duration<\/code> \u5b57\u6bb5\u4e4b\u540e\u53ef\u80fd\u5305\u542b\u4e0d\u540c\u6570\u91cf\u548c\u7c7b\u578b\u7684\u5b57\u6bb5<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.garfield-blog.top\/wp-content\/uploads\/2025\/12\/Extension-frame-format.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1603\" height=\"319\" data-original=\"https:\/\/www.garfield-blog.top\/wp-content\/uploads\/2025\/12\/Extension-frame-format.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-470\"  sizes=\"auto, (max-width: 1603px) 100vw, 1603px\" \/><\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u5b9a\u5411\u4fe1\u6807\u5e27(DMG Beacon)<\/h2>\n\n\n\n<p><code>DMG<\/code>\u4fe1\u6807\u5e27\u53ef\u4f5c\u4e3a\u6ce2\u675f\u6210\u5f62\u7684\u8bad\u7ec3\u5e27\u4f7f\u7528\u6216\u652f\u6301\u7f51\u7edc\u540c\u6b65\u7b49\u529f\u80fd<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">DMG Beacon\u5e27\u7ed3\u6784<\/h3>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u7b14\u8005\u6ce8\uff1a<strong>\u8be6\u60c5\u89c1IEEE 802.11-2016 9.3.4.2<\/strong><\/p>\n<\/blockquote>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.garfield-blog.top\/wp-content\/uploads\/2025\/12\/DMG-Beacon.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1381\" height=\"231\" data-original=\"https:\/\/www.garfield-blog.top\/wp-content\/uploads\/2025\/12\/DMG-Beacon.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-469\"  sizes=\"auto, (max-width: 1381px) 100vw, 1381px\" \/><\/div><\/figure>\n\n\n\n<p><strong>Duration\u5b57\u6bb5\uff1a<\/strong>\u88ab\u8bbe\u7f6e\u4e3a\u8ddd\u79bb\u4fe1\u6807\u4f20\u8f93\u95f4\u9694(<code>BTI<\/code>)\u7ed3\u675f\u6240\u5269\u4f59\u7684\u65f6\u95f4<br><strong>BSSID\u5b57\u6bb5\uff1a<\/strong><code>BSSID<\/code>\u5b57\u6bb5\u5305\u542b<code>BSSID<\/code><br><strong>DMG \u4fe1\u6807\u5e27\u7684\u5e27\u4f53\uff1a<\/strong><code>Frame Body<\/code>\u5b57\u6bb5\u89c1<code>IEEE 802.11-2016 Table 9-41\u2014DMG Beacon frame body<\/code><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u53c2\u8003\u6587\u6863<\/h2>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><a href=\"https:\/\/github.com\/Garfield-1\/Books\/blob\/master\/11_802.11\u534f\u8bae\u89c4\u8303\/80211-2016.pdf\">80211-2016\u89c4\u8303<\/a><\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>\u6982\u8ff0 \u4e3a\u4e86\u6269\u5c55\u5e27\u901a\u8fc7\u589e\u52a0\u65b0\u7684\u5b50\u7c7b\u578b\uff0c\u4e3a60GHz \u9891\u6bb5\u7279\u6709\u7684\u529f\u80fd(\u5982\u6ce2\u675f\u6210\u5f62\u8bad\u7ec3\u3001\u5b9a\u5411\u901a\u4fe1\u7ba1\u7406)\u63d0\u4f9b\u652f\u6301\uff0c\u540c\u65f6 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[9,11],"tags":[],"class_list":["post-468","post","type-post","status-publish","format-standard","hentry","category-wifi","category-11"],"_links":{"self":[{"href":"https:\/\/www.garfield-blog.top\/index.php?rest_route=\/wp\/v2\/posts\/468","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.garfield-blog.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.garfield-blog.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.garfield-blog.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.garfield-blog.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=468"}],"version-history":[{"count":1,"href":"https:\/\/www.garfield-blog.top\/index.php?rest_route=\/wp\/v2\/posts\/468\/revisions"}],"predecessor-version":[{"id":471,"href":"https:\/\/www.garfield-blog.top\/index.php?rest_route=\/wp\/v2\/posts\/468\/revisions\/471"}],"wp:attachment":[{"href":"https:\/\/www.garfield-blog.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=468"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.garfield-blog.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=468"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.garfield-blog.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=468"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}