X1\u3001X2\u3001X3 5G \u63a5\u53e3\u67b6\u6784\u6807\u5fd7\u7740\u5408\u6cd5\u622a\u83b7\u8bbe\u8ba1\u9886\u57df\u7684\u6839\u672c\u6027\u6f14\u8fdb\u30025G \u7684\u5230\u6765\u7ed9\u7535\u4fe1\u7f51\u7edc\u7684\u8bbe\u8ba1\u3001\u90e8\u7f72\u548c\u8fd0\u8425\u65b9\u5f0f\u5e26\u6765\u4e86\u6839\u672c\u6027\u53d8\u9769\u3002 \u5bf9\u4e8e\u5408\u6cd5\u622a\u53d6\u800c\u8a00\uff0c\u8fd9\u4e9b\u53d8\u5316\u540c\u6837\u6df1\u8fdc\u30023GPP \u9488\u5bf9 5G \u7684\u5408\u6cd5\u622a\u53d6\uff08LI\uff09\u67b6\u6784\u5f15\u5165\u4e86\u4e00\u7ec4\u65b0\u7684\u63a5\u53e3\u2014\u2014X1\u3001X2 \u548c X3\u2014\u2014\u5b83\u4eec\u53d6\u4ee3\u4e86\u524d\u51e0\u4ee3\u7f51\u7edc\u4e2d\u4f7f\u7528\u7684\u4f20\u7edf\u89e6\u53d1\u548c\u4f20\u8f93\u673a\u5236\u3002 \u5bf9\u4e8e\u90e8\u7f72 5G \u7f51\u7edc\u7684\u8fd0\u8425\u5546\u800c\u8a00\uff0c\u7406\u89e3 X1\/X2\/X3 \u67b6\u6784\u5bf9\u4e8e\u6784\u5efa\u65e2\u7b26\u5408\u76d1\u7ba1\u8981\u6c42\u3001\u53c8\u80fd\u5728\u65b0\u7f51\u7edc\u73af\u5883\u4e2d\u6709\u6548\u8fd0\u884c\u7684\u5408\u6cd5\u622a\u83b7\u80fd\u529b\u81f3\u5173\u91cd\u8981\u3002.<\/p>\n\n\n\n
\u672c\u6587\u8be6\u7ec6\u9610\u8ff0\u4e865G\u76843GPP LI\u67b6\u6784\uff0c\u91cd\u70b9\u4ecb\u7ecd\u4e86X1\u3001X2\u548cX3\u63a5\u53e3\uff0c\u5b83\u4eec\u4e0eETSI HI\u63a5\u53e3\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u4ee5\u53ca\u8fd9\u5bf9\u8fd0\u8425\u5546\u548cLI\u89e3\u51b3\u65b9\u6848\u63d0\u4f9b\u5546\u4ea7\u751f\u7684\u5b9e\u9645\u5f71\u54cd\u3002.<\/p>\n\n\n\n
\u6839\u636e 3GPP \u7684\u5b9a\u4e49\uff0c5G \u6838\u5fc3\u7f51\u91c7\u7528\u57fa\u4e8e\u670d\u52a1\u7684\u67b6\u6784\uff08SBA\uff09\uff0c\u8fd9\u4e0e 3G \u548c 4G \u7684\u57fa\u4e8e\u8282\u70b9\u7684\u67b6\u6784\u6709\u7740\u6839\u672c\u6027\u7684\u533a\u522b\u3002 5G\u6838\u5fc3\u7f51\u4e0d\u518d\u4f9d\u8d56\u6267\u884c\u7279\u5b9a\u529f\u80fd\u7684\u4e13\u7528\u7f51\u7edc\u5143\u7d20\uff0c\u800c\u662f\u7531\u4e00\u7ec4\u7f51\u7edc\u529f\u80fd\uff08NFs\uff09\u7ec4\u6210\uff0c\u8fd9\u4e9b\u529f\u80fd\u901a\u8fc7\u57fa\u4e8e\u670d\u52a1\u7684\u63a5\u53e3\u76f8\u4e92\u901a\u4fe1\u3002 \u5173\u952e\u7f51\u7edc\u529f\u80fd\u5305\u62ec\u63a5\u5165\u4e0e\u79fb\u52a8\u6027\u7ba1\u7406\u529f\u80fd\uff08AMF\uff09\u3001\u4f1a\u8bdd\u7ba1\u7406\u529f\u80fd\uff08SMF\uff09\u3001\u7528\u6237\u5e73\u9762\u529f\u80fd\uff08UPF\uff09\u4ee5\u53ca\u8bb8\u591a\u5176\u4ed6\u529f\u80fd\u3002.<\/p>\n\n\n\n
\u8fd9\u4e00\u67b6\u6784\u8f6c\u53d8\u5bf9LI\u5177\u6709\u91cd\u5927\u5f71\u54cd\u3002\u5728\u4ee5\u5f80\u7684\u7f51\u7edc\u4e16\u4ee3\u4e2d\uff0c\u622a\u83b7\u901a\u5e38\u5728\u7279\u5b9a\u7684\u7f51\u7edc\u8282\u70b9\u4e0a\u5b9e\u73b0\u2014\u2014\u4f8b\u59823G\u7f51\u7edc\u4e2d\u7528\u4e8e\u8bed\u97f3\u7684MSC\uff0c4G\u7f51\u7edc\u4e2d\u7528\u4e8e\u6570\u636e\u7684P-GW\u2014\u2014\u8fd9\u4e9b\u8282\u70b9\u662f\u76ee\u6807\u4fe1\u53f7\u548c\u7528\u6237\u5e73\u9762\u6d41\u91cf\u6c47\u805a\u7684\u660e\u786e\u70b9\u3002 \u57285G\u4e2d\uff0c\u7f51\u7edc\u529f\u80fd\u7684\u5206\u5e03\u5f0f\u548c\u865a\u62df\u5316\u7279\u6027\u610f\u5473\u7740\u5fc5\u987b\u91c7\u53d6\u4e0d\u540c\u7684\u622a\u83b7\u65b9\u6cd5\u30023GPP LI\u67b6\u6784\u901a\u8fc7\u5b9a\u4e49LI\u7cfb\u7edf\u4e0e\u7f51\u7edc\u529f\u80fd\u4e4b\u95f4\u7684\u6807\u51c6\u5316\u63a5\u53e3\u6765\u89e3\u51b3\u8fd9\u4e00\u95ee\u9898\uff0c\u800c\u4e0d\u662f\u4f9d\u8d56\u4e8e\u7279\u5b9a\u8282\u70b9\u7684\u622a\u83b7\u673a\u5236\u3002.<\/p>\n\n\n\n
5G\u76843GPP\u5408\u6cd5\u622a\u53d6\uff08LI\uff09\u67b6\u6784\u4e3b\u8981\u5728\u4e24\u9879\u89c4\u8303\u4e2d\u8fdb\u884c\u5b9a\u4e49\uff1aTS 33.127\uff08\u5408\u6cd5\u622a\u53d6\u67b6\u6784\u4e0e\u529f\u80fd\uff09\u548cTS 33.128\uff08\u5408\u6cd5\u622a\u53d6\u8981\u6c42\uff09\u3002 \u8fd9\u4e9b\u89c4\u8303\u5b9a\u4e49\u4e865G\u7f51\u7edc\u4e2d\u5408\u6cd5\u622a\u83b7\uff08LI\uff09\u7cfb\u7edf\u7684\u529f\u80fd\u7ec4\u4ef6\u3001\u7ec4\u4ef6\u4e4b\u95f4\u7684\u63a5\u53e3\uff0c\u4ee5\u53ca\u4e0e\u6267\u6cd5\u9886\u57df\u7684\u63a5\u53e3\u3002.<\/p>\n\n\n\n
3GPP \u67b6\u6784\u4e2d\u5b9a\u4e49\u7684\u5173\u952e\u529f\u80fd\u7ec4\u4ef6\u5305\u62ec\uff1aLI \u7ba1\u7406\u529f\u80fd\uff08LIAF\uff09\uff0c\u7528\u4e8e\u7ba1\u7406\u622a\u83b7\u4ee4\u5e76\u914d\u7f6e LI \u7cfb\u7edf\uff1bLI \u5185\u90e8\u622a\u83b7\u529f\u80fd\uff08LIIF\uff09\uff0c\u7528\u4e8e\u4e0e\u7f51\u7edc\u529f\u80fd\u8fdb\u884c\u4ea4\u4e92\u4ee5\u89e6\u53d1\u548c\u6355\u83b7\u622a\u83b7\u6570\u636e\uff1b \u76d1\u542c\u4e2d\u4ecb\u4e0e\u4ea4\u4ed8\u529f\u80fd\uff08LI MDF\uff09\uff0c\u8d1f\u8d23\u5904\u7406\u622a\u83b7\u7684\u6570\u636e\u5e76\u5c06\u5176\u4ea4\u4ed8\u7ed9\u6267\u6cd5\u90e8\u95e8\uff1b\u4ee5\u53ca\u622a\u83b7\u70b9\uff08POI\uff09\uff0c\u5373\u7f51\u7edc\u529f\u80fd\u4e2d\u6267\u884c\u622a\u83b7\u64cd\u4f5c\u7684\u5177\u4f53\u4f4d\u7f6e\u3002.<\/p>\n\n\n\n
\u8fd9\u4e9b\u7ec4\u4ef6\u4e4b\u95f4\u7684\u63a5\u53e3\u5206\u522b\u547d\u540d\u4e3a X1\u3001X2 \u548c X3\u3002\u8fd9\u4e9b\u63a5\u53e3\u4f4d\u4e8e\u8fd0\u8425\u5546\u57df\u5185\u90e8\u2014\u2014\u5b83\u4eec\u5c06 LI \u7ba1\u7406\u548c\u4f20\u8f93\u529f\u80fd\u4e0e\u7f51\u7edc\u529f\u80fd\u8fde\u63a5\u8d77\u6765\u2014\u2014\u4e0e\u8fde\u63a5\u8fd0\u8425\u5546\u548c LEMF \u7684 ETSI HI \u63a5\u53e3\u4e0d\u540c\u3002 \u4f46\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0cX\u63a5\u53e3\u4e0eHI\u63a5\u53e3\u4e4b\u95f4\u5b58\u5728\u660e\u786e\u7684\u6620\u5c04\u5173\u7cfb\uff1aX1\u5728\u529f\u80fd\u4e0a\u5bf9\u5e94\u4e8eHI1\uff0cX2\u5bf9\u5e94\u4e8eHI2\uff0cX3\u5bf9\u5e94\u4e8eHI3\u3002.<\/p>\n\n\n\n
X1 \u662f LI \u7ba1\u7406\u529f\u80fd\u4e0e\u7f51\u7edc\u529f\u80fd\u4e2d\u7684\u622a\u83b7\u70b9\uff08POI\uff09\u4e4b\u95f4\u7684\u7ba1\u7406\u63a5\u53e3\u3002\u901a\u8fc7 X1\uff0cLI \u7ba1\u7406\u529f\u80fd\uff08LIAF\uff09\u5411\u622a\u83b7\u70b9\uff08POI\uff09\u53d1\u9001\u6307\u4ee4\uff0c\u4ee5\u6fc0\u6d3b\u3001\u4fee\u6539\u6216\u505c\u7528\u622a\u83b7\u64cd\u4f5c\u3002 X1 \u63a5\u53e3\u627f\u8f7d\u76ee\u6807\u8bc6\u522b\u53c2\u6570\u3001\u622a\u83b7\u8303\u56f4\u4ee5\u53ca POI \u6240\u9700\u7684\u4efb\u4f55\u7279\u5b9a\u4e8e\u6280\u672f\u7684\u914d\u7f6e\u4fe1\u606f\u3002.<\/p>\n\n\n\n
\u5728 5G \u67b6\u6784\u4e2d\uff0cX1 \u901a\u8fc7\u57fa\u4e8e HTTP\/2 \u7684 RESTful API \u5b9e\u73b0\uff0c\u8fd9\u4e0e 5G \u6838\u5fc3\u7f51\u91c7\u7528\u7684\u670d\u52a1\u5bfc\u5411\u63a5\u53e3\u6a21\u578b\u4fdd\u6301\u4e00\u81f4\u3002 X1 \u6d88\u606f\u91c7\u7528 JSON \u6216 XML \u683c\u5f0f\u7f16\u7801\uff0c\u8be5\u63a5\u53e3\u4e3a\u786e\u4fdd\u5b89\u5168\u91c7\u7528\u53cc\u5411 TLS \u8ba4\u8bc1\u3002\u8fd9\u4e0e\u524d\u51e0\u4ee3\u7f51\u7edc\u4e2d\u7684 X1 \u5b9e\u73b0\u65b9\u5f0f\u6709\u663e\u8457\u4e0d\u540c\uff0c\u540e\u8005\u901a\u5e38\u91c7\u7528\u4e13\u6709\u6216\u6807\u51c6\u5316\u7a0b\u5ea6\u8f83\u4f4e\u7684\u63a5\u53e3\u3002.<\/p>\n\n\n\n
X1\u63a5\u53e3\u652f\u6301\u591a\u79cd\u76ee\u6807\u8bc6\u522b\u65b9\u6cd5\uff0c\u5305\u62ecSUPI\uff08\u8ba2\u9605\u6c38\u4e45\u6807\u8bc6\u7b26\uff09\u3001GPSI\uff08\u901a\u7528\u516c\u5171\u8ba2\u9605\u6807\u8bc6\u7b26\uff09\u3001PEI\uff08\u6c38\u4e45\u8bbe\u5907\u6807\u8bc6\u7b26\uff09\u548cIP\u5730\u5740\u3002 LIAF\u5fc5\u987b\u80fd\u591f\u5c06\u6267\u6cd5\u76ee\u6807\u6807\u8bc6\u7b26\u8f6c\u6362\u4e3aPOI\u6240\u4f7f\u7528\u7684\u5185\u90e8\u7f51\u7edc\u6807\u8bc6\u7b26\uff0c\u8fd9\u53ef\u80fd\u9700\u8981\u4e0e\u8ba2\u6237\u7ba1\u7406\u7cfb\u7edf\u548c\u8eab\u4efd\u89e3\u6790\u529f\u80fd\u8fdb\u884c\u4ea4\u4e92\u3002.<\/p>\n\n\n\n
X2 \u662f\u7528\u4e8e\u5c06\u622a\u83b7\u76f8\u5173\u4fe1\u606f\u4ece\u622a\u83b7\u70b9\uff08POI\uff09\u4f20\u8f93\u81f3 LI \u8c03\u89e3\u4e0e\u5206\u53d1\u529f\u80fd\uff08LI MDF\uff09\u7684\u63a5\u53e3\u3002 \u5f53\u76ee\u6807\u7684\u901a\u4fe1\u5728\u62e6\u622a\u70b9\uff08POI\uff09\u89e6\u53d1\u4e8b\u4ef6\uff08\u4f8b\u5982\u6ce8\u518c\u3001\u4f1a\u8bdd\u5efa\u7acb\u3001\u79fb\u52a8\u6027\u4e8b\u4ef6\u6216\u4f1a\u8bdd\u7ec8\u6b62\uff09\u65f6\uff0c\u62e6\u622a\u70b9\u4f1a\u751f\u6210 IRI \u8bb0\u5f55\uff0c\u5e76\u901a\u8fc7 X2 \u63a5\u53e3\u5c06\u5176\u53d1\u9001\u81f3 LI MDF\u3002.<\/p>\n\n\n\n
5G \u67b6\u6784\u4e2d\u7684 X2 IRI \u8bb0\u5f55\u6bd4\u524d\u51e0\u4ee3\u8981\u4e30\u5bcc\u5f97\u591a\uff0c\u8fd9\u53cd\u6620\u4e86 5G \u7f51\u7edc\u4e2d\u66f4\u590d\u6742\u7684\u4fe1\u4ee4\u548c\u4f1a\u8bdd\u7ba1\u7406\u3002 X2 \u8bb0\u5f55\u53ef\u80fd\u5305\u542b\u6709\u5173 PDU\uff08\u534f\u8bae\u6570\u636e\u5355\u5143\uff09\u4f1a\u8bdd\u5efa\u7acb\u3001QoS\uff08\u670d\u52a1\u8d28\u91cf\uff09\u6d41\u7684\u521b\u5efa\u548c\u4fee\u6539\u3001\u5207\u6362\u4e8b\u4ef6\u3001\u7f51\u7edc\u5207\u7247\u9009\u62e9\u4ee5\u53ca\u7279\u5b9a\u670d\u52a1\u53c2\u6570\u7684\u4fe1\u606f\u3002 X2\u8bb0\u5f55\u7684\u6570\u636e\u7ed3\u6784\u5728TS 33.128\u4e2d\u8fdb\u884c\u4e86\u5b9a\u4e49\uff0c\u5e76\u540c\u65f6\u91c7\u7528ASN.1\u548cJSON\u7f16\u7801\u3002.<\/p>\n\n\n\n
X2 \u63a5\u53e3\u91c7\u7528\u63a8\u9001\u6a21\u5f0f\u8fd0\u884c\u2014\u2014\u5f53\u4e8b\u4ef6\u53d1\u751f\u65f6\uff0cPOI \u4f1a\u751f\u6210 IRI \u8bb0\u5f55\u5e76\u5c06\u5176\u53d1\u9001\u81f3 LI MDF\uff0c\u800c\u65e0\u9700\u7b49\u5f85\u8bf7\u6c42\u3002\u7531\u4e8e IRI \u662f\u4f20\u9012\u7ed9\u6267\u6cd5\u90e8\u95e8\u7684\u622a\u83b7\u6750\u6599\u4e2d\u7684\u5173\u952e\u7ec4\u6210\u90e8\u5206\uff0c\u56e0\u6b64\u6570\u636e\u4f20\u8f93\u5fc5\u987b\u53ca\u65f6\u4e14\u53ef\u9760\u3002 LI MDF \u4ece\u7f51\u7edc\u4e2d\u53ef\u80fd\u5b58\u5728\u7684\u591a\u4e2a POI \u63a5\u6536 X2 \u8bb0\u5f55\uff0c\u5bf9\u5176\u8fdb\u884c\u5173\u8054\u5206\u6790\uff0c\u5e76\u5c06\u5176\u683c\u5f0f\u5316\u540e\u901a\u8fc7 HI2 \u63a5\u53e3\u4f20\u8f93\u81f3 LEMF\u3002.<\/p>\n\n\n\n
X3 \u662f\u5c06\u901a\u4fe1\u5185\u5bb9\u4ece\u7528\u6237\u5e73\u9762\u529f\u80fd\uff08UPF\uff09\u4f20\u8f93\u81f3 LI \u8c03\u89e3\u4e0e\u4ea4\u4ed8\u529f\u80fd\u7684\u63a5\u53e3\u3002 \u5f53\u62e6\u622a\u88ab\u6fc0\u6d3b\u65f6\uff0cUPF \u4f1a\u590d\u5236\u76ee\u6807\u7684\u7528\u6237\u5e73\u9762\u6d41\u91cf\uff08\u5373\u627f\u8f7d\u8bed\u97f3\u3001\u6570\u636e\u3001\u6d88\u606f\u53ca\u5176\u4ed6\u670d\u52a1\u7684 IP \u6570\u636e\u5305\uff09\uff0c\u5e76\u901a\u8fc7 X3 \u63a5\u53e3\u5c06\u590d\u5236\u7684\u6d41\u91cf\u53d1\u9001\u81f3 LI MDF\u3002.<\/p>\n\n\n\n
X3 \u63a5\u53e3\u9700\u8981\u5904\u7406\u53ef\u80fd\u975e\u5e38\u5e9e\u5927\u7684\u6570\u636e\u91cf\uff0c\u7279\u522b\u662f\u9488\u5bf9\u6570\u636e\u91cf\u5de8\u5927\u7684\u76ee\u6807\u3002 \u8be5\u63a5\u53e3\u7684\u5bb9\u91cf\u8bbe\u8ba1\u5fc5\u987b\u80fd\u591f\u6ee1\u8db3\u541e\u5410\u91cf\u8981\u6c42\u4e14\u4e0d\u4e22\u5931\u6570\u636e\u5305\uff0c\u4e14\u4f20\u8f93\u673a\u5236\u5fc5\u987b\u4fdd\u6301\u622a\u83b7\u6570\u636e\u5305\u7684\u5b8c\u6574\u6027\u548c\u987a\u5e8f\u3002LI MDF \u63a5\u6536 X3 \u6d41\u91cf\uff0c\u6839\u636e\u9700\u8981\u8fdb\u884c\u5904\u7406\uff0c\u5e76\u901a\u8fc7 HI3 \u63a5\u53e3\u5c06\u5176\u4f20\u8f93\u81f3 LEMF\u3002.<\/p>\n\n\n\n
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The X1 X2 X3 5G interface architecture represents a fundamental evolution in lawful interception design. 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