{"id":112341,"date":"2026-10-03T07:01:04","date_gmt":"2026-10-02T23:01:04","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/112341.html"},"modified":"2026-10-03T07:01:04","modified_gmt":"2026-10-02T23:01:04","slug":"%e6%b7%b1%e5%85%a5%e7%90%86%e8%a7%a35g%ef%bc%9c%e4%b8%89%e5%8d%81%e4%b8%83%ef%bc%9e-mac%e5%b1%82%e6%95%b0%e6%8d%ae%e5%8c%85%e5%a4%b4","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/112341.html","title":{"rendered":"\u6df1\u5165\u7406\u89e35g\uff1c\u4e09\u5341\u4e03\uff1e mac\u5c42\u6570\u636e\u5305\u5934"},"content":{"rendered":"

5G MAC\u5c42\u7684\u201c\u6570\u636e\u5305\u5934\u201d\u5728\u89c4\u8303\u4e2d\u88ab\u79f0\u4e3a **MAC subheader（MAC\u5b50\u5934）**\u3002\u5b83\u7684\u6838\u5fc3\u4f5c\u7528\u662f**\u8ba9\u63a5\u6536\u7aef\u80fd\u591f\u533a\u5206MAC PDU\u91cc\u88c5\u7684\u662f\u4ec0\u4e48\u6570\u636e\u3001\u5c5e\u4e8e\u54ea\u4e2a\u903b\u8f91\u4fe1\u9053\u3001\u4ee5\u53ca\u6709\u591a\u957f**\u3002<\/p>\n

### 🧩 MAC\u5b50\u5934\u7684\u57fa\u672c\u7ed3\u6784<\/p>\n

5G MAC\u5b50\u5934\u7531\u4e00\u7ec4\u5b57\u6bb5\u6784\u6210，\u5177\u4f53\u5305\u542b\u54ea\u4e9b\u5b57\u6bb5\u53d6\u51b3\u4e8e\u5b83\u5bf9\u5e94\u7684\u662f**\u6570\u636e**\u8fd8\u662f**\u63a7\u5236\u4fe1\u4ee4**：<\/p>\n

* \u00a0 **\u5bf9\u5e94\u6570\u636e（MAC SDU）\u6216\u53d8\u957f\u63a7\u5236\u4fe1\u4ee4（MAC CE）**：\u4f7f\u7528 **R\/F\/LCID\/L** \u683c\u5f0f\u3002
\n* \u00a0 **\u5bf9\u5e94\u5b9a\u957f\u63a7\u5236\u4fe1\u4ee4（MAC CE）\u6216\u586b\u5145（Padding）**：\u4f7f\u7528 **R\/LCID** \u683c\u5f0f，\u7701\u7565\u4e86\u957f\u5ea6\u5b57\u6bb5\u3002<\/p>\n

### 📝 \u5173\u952e\u5b57\u6bb5\u8be6\u89e3<\/p>\n

#### **LCID（\u903b\u8f91\u4fe1\u9053ID）** \u2014\u2014 \u6700\u5173\u952e\u7684\u5b57\u6bb5
\n\u8fd9\u662f6\u6bd4\u7279\u7684\u5b57\u6bb5，\u5b83\u7684\u503c\u76f4\u63a5\u544a\u8bc9\u63a5\u6536\u7aef\u8fd9\u4e2a\u5b50\u5934\u540e\u9762\u8ddf\u7740\u7684\u662f\u4ec0\u4e48\u3002
\n* \u00a0 **\u8bc6\u522b\u6570\u636e**：\u5982\u679c\u503c\u5728 **1\u201332** \u4e4b\u95f4，\u8868\u793a\u5bf9\u5e94\u7684\u662f\u67d0\u4e2a\u903b\u8f91\u4fe1\u9053\u4e0a\u7684\u6570\u636e（MAC SDU）\u3002
\n* \u00a0 **\u8bc6\u522b\u4fe1\u4ee4**：\u5982\u679c\u503c\u5728 **33\u201363** \u4e4b\u95f4，\u8868\u793a\u5bf9\u5e94\u7684\u662f\u5404\u79cd\u63a7\u5236\u4fe1\u4ee4（MAC CE），\u4f8b\u5982：**63** \u662f\u586b\u5145（Padding），**61** \u662f\u5b9a\u65f6\u63d0\u524d\u547d\u4ee4（Timing Advance Command），**60** \u662fDRX\u547d\u4ee4，**57\/58** \u662f\u5c0f\u533a\u7684\u6fc0\u6d3b\/\u53bb\u6fc0\u6d3b\u547d\u4ee4\u7b49\u3002
\n* \u00a0 **\u6269\u5c55\u7a7a\u95f4**：\u5f53LCID\u4e3a **33** \u6216 **34** \u65f6，\u8868\u793a\u540e\u9762\u4f1a\u8ddf\u4e00\u4e2a\u6269\u5c55\u7684eLCID\u5b57\u6bb5，\u7528\u4e8e\u652f\u6301\u66f4\u591a\u7684\u903b\u8f91\u4fe1\u9053（\u4e3b\u8981\u5728IAB\u56de\u4f20\u94fe\u8def\u4e2d\u4f7f\u7528）\u3002<\/p>\n

#### **F（\u683c\u5f0f）\u4e0e L（\u957f\u5ea6）**
\n* \u00a0 **L\u5b57\u6bb5**：\u8868\u793a\u540e\u9762MAC SDU\u6216\u53d8\u957fMAC CE\u7684**\u5b57\u8282\u957f\u5ea6**\u3002
\n* \u00a0 **F\u5b57\u6bb5**：1\u6bd4\u7279，\u7528\u6765\u6307\u793aL\u5b57\u6bb5\u7684**\u5927\u5c0f**\u3002**F=0** \u8868\u793aL\u5b57\u6bb5\u662f **8\u6bd4\u7279**（\u80fd\u8868\u793a\u7684\u6700\u5927\u957f\u5ea6\u662f255\u5b57\u8282）；**F=1** \u8868\u793aL\u5b57\u6bb5\u662f **16\u6bd4\u7279**（\u652f\u6301\u66f4\u957f\u7684\u6570\u636e\u5305）\u3002<\/p>\n

#### **R（\u4fdd\u7559\u4f4d）**
\n\u56fa\u5b9a\u4e3a **0**\u3002\u5982\u679c\u67d0\u4e2aMAC\u5b50\u5934\u4e0d\u9700\u8981\u67d0\u4e2a\u5b57\u6bb5（\u6bd4\u5982\u5b9a\u957fCE\u4e0d\u9700\u8981F\u548cL），\u539f\u672c\u7684\u4f4d\u7f6e\u5c31\u4f1a\u7528R\u4f4d\u6765\u5360\u4f4d\u5bf9\u9f50\u3002<\/p>\n

### 🔍 \u968f\u673a\u63a5\u5165\u54cd\u5e94（RAR）\u7684\u7279\u6b8a\u5b50\u5934<\/p>\n

\u5bf9\u4e8e\u968f\u673a\u63a5\u5165\u54cd\u5e94（RAR）\u8fd9\u79cd\u7279\u6b8a\u573a\u666f，MAC\u5b50\u5934\u7684\u683c\u5f0f\u5b8c\u5168\u4e0d\u540c\u3002\u5b83\u4f7f\u7528 **E\/T\/R\/R\/BI** \u6216 **E\/T\/RAPID** \u7ed3\u6784：
\n* \u00a0 **E\u5b57\u6bb5**：\u6269\u5c55\u6807\u5fd7，\u6307\u793a\u540e\u9762\u662f\u5426\u8fd8\u6709\u522b\u7684\u5b50\u5934\u3002
\n* \u00a0 **T\u5b57\u6bb5**：\u7c7b\u578b\u6807\u5fd7，\u533a\u5206\u8fd9\u662f **\u56de\u9000\u6307\u793a（BI）** \u8fd8\u662f **\u524d\u5bfc\u7801\u6807\u8bc6（RAPID）**\u3002
\n* \u00a0 **BI\/RAPID**：\u5206\u522b\u7528\u4e8e\u6307\u793a\u5c0f\u533a\u7684\u8fc7\u8f7d\u72b6\u6001，\u6216\u6807\u8bc6UE\u53d1\u9001\u7684\u968f\u673a\u63a5\u5165\u524d\u5bfc\u7801\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

5G MAC\u5c42\u7684\u201c\u6570\u636e\u5305\u5934\u201d\u5728\u89c4\u8303\u4e2d\u88ab\u79f0\u4e3a **MAC subheader（MAC\u5b50\u5934）**\u3002\u5b83\u7684\u6838\u5fc3\u4f5c\u7528\u662f**\u8ba9\u63a5\u6536\u7aef\u80fd\u591f\u533a\u5206MAC PDU\u91cc\u88c5\u7684\u662f\u4ec0\u4e48\u6570\u636e\u3001\u5c5e\u4e8e\u54ea\u4e2a\u903b\u8f91\u4fe1\u9053\u3001\u4ee5\u53ca\u6709\u591a\u957f**\u3002### 🧩 MAC\u5b50\u5934\u7684\u57fa\u672c\u7ed3\u67845G MAC\u5b50\u5934\u7531\u4e00\u7ec4\u5b57\u6bb5\u6784\u6210，\u5177\u4f53\u5305\u542b\u54ea\u4e9b\u5b57\u6bb5\u53d6\u51b3\u4e8e\u5b83\u5bf9\u5e94\u7684\u662f**\u6570\u636e**\u8fd8\u662f**\u63a7\u5236\u4fe1\u4ee4**：* \u00a0 **\u5bf9\u5e94\u6570\u636e（MAC SDU）\u6216\u53d8\u957f\u63a7\u5236\u4fe1\u4ee4&#<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[3053,78],"topic":[],"class_list":["post-112341","post","type-post","status-publish","format-standard","hentry","category-server","tag-5g","tag-78"],"yoast_head":"\n\u6df1\u5165\u7406\u89e35g\uff1c\u4e09\u5341\u4e03\uff1e mac\u5c42\u6570\u636e\u5305\u5934 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/112341.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u6df1\u5165\u7406\u89e35g\uff1c\u4e09\u5341\u4e03\uff1e mac\u5c42\u6570\u636e\u5305\u5934 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"5G MAC\u5c42\u7684\u201c\u6570\u636e\u5305\u5934\u201d\u5728\u89c4\u8303\u4e2d\u88ab\u79f0\u4e3a **MAC subheader（MAC\u5b50\u5934）**\u3002\u5b83\u7684\u6838\u5fc3\u4f5c\u7528\u662f**\u8ba9\u63a5\u6536\u7aef\u80fd\u591f\u533a\u5206MAC PDU\u91cc\u88c5\u7684\u662f\u4ec0\u4e48\u6570\u636e\u3001\u5c5e\u4e8e\u54ea\u4e2a\u903b\u8f91\u4fe1\u9053\u3001\u4ee5\u53ca\u6709\u591a\u957f**\u3002### 🧩 MAC\u5b50\u5934\u7684\u57fa\u672c\u7ed3\u67845G MAC\u5b50\u5934\u7531\u4e00\u7ec4\u5b57\u6bb5\u6784\u6210，\u5177\u4f53\u5305\u542b\u54ea\u4e9b\u5b57\u6bb5\u53d6\u51b3\u4e8e\u5b83\u5bf9\u5e94\u7684\u662f**\u6570\u636e**\u8fd8\u662f**\u63a7\u5236\u4fe1\u4ee4**：* \u00a0 **\u5bf9\u5e94\u6570\u636e（MAC SDU）\u6216\u53d8\u957f\u63a7\u5236\u4fe1\u4ee4&#\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/112341.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-10-02T23:01:04+00:00\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/112341.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/112341.html\",\"name\":\"\u6df1\u5165\u7406\u89e35g\uff1c\u4e09\u5341\u4e03\uff1e mac\u5c42\u6570\u636e\u5305\u5934 - 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