{"id":10554,"date":"2024-03-25T09:34:49","date_gmt":"2024-03-25T00:34:49","guid":{"rendered":"https:\/\/www11.ieice.org\/cs\/ap\/wp\/?page_id=10554"},"modified":"2026-06-25T15:56:36","modified_gmt":"2026-06-25T06:56:36","slug":"los_probability_p1410","status":"publish","type":"page","link":"https:\/\/www.ieice.org\/cs\/ap\/misc\/denpan-db\/prop_model_db\/model_list\/los_probability_p1410\/","title":{"rendered":"ITU-R\u52e7\u544aP.1410\u306e\u898b\u901a\u3057\u7387\u30e2\u30c7\u30eb\uff08Site-specific\uff09"},"content":{"rendered":"
<\/div>

<\/path><\/svg><\/i> \"Loading\"<\/p>

<\/div>(since 2025\/12\/5)<\/p>\n\n\n\n

\u898b\u901a\u3057\u7387\u306e\u8aac\u660e<\/strong><\/h3>\n\n\n\n

\u3000\u9ad8\u5468\u6ce2\u6570\u5e2f\u306b\u304a\u3051\u308b\u7121\u7dda\u30be\u30fc\u30f3\u8a2d\u8a08\u3067\u306f\uff0c\u9001\u53d7\u4fe1\u70b9\u9593\u306e\u898b\u901a\u3057\u6709\u7121\u306e\u8a55\u4fa1\uff08\u898b\u901a\u3057\u30a8\u30ea\u30a2\u306e\u63a8\u5b9a\uff09\u304c\u91cd\u8981\u306a\u691c\u8a0e\u9805\u76ee\u3068\u306a\u308b\uff0e\u898b\u901a\u3057\u6709\u7121\u306e\u8a55\u4fa1\u306f\uff0c\u3042\u308b\u74b0\u5883\u306b\u304a\u3044\u3066\u9001\u53d7\u4fe1\u70b9\u3092\u8a2d\u5b9a\u3057\u305f\u5834\u5408\u306b\uff0c\u305d\u306e\u9001\u53d7\u4fe1\u70b9\u9593\u306b\u898b\u901a\u3057\u304c\u53d6\u308c\u308b\u78ba\u7387\u3092\u63a8\u5b9a\u3059\u308b\u3053\u3068\u304c\u4e00\u822c\u7684\u3067\u3042\u308b\uff0e\u3053\u3053\u3067\u306f\uff0c\u57fa\u5730\u5c40\uff08BS\uff09\uff0d\u7aef\u672b\u5c40\uff08UT\uff09\u9593\u306b\u898b\u901a\u3057\u304c\u3068\u308c\u308b\u78ba\u7387\u3092\u898b\u901a\u3057\u7387\u3068\u547c\u3076\uff0e<\/p>\n\n\n\n

\u3000\u898b\u901a\u3057\u7387\u306e\u5177\u4f53\u7684\u306a\u4f7f\u308f\u308c\u65b9\u306f\uff0c\u3042\u308b\u6761\u4ef6\u4e0b\u306b\u304a\u3044\u3066\u898b\u901a\u3057\u304c\u78ba\u4fdd\u3067\u304d\u308b\u5834\u6240\u7387\u306e\u63a8\u5b9a\u8a55\u4fa1\u3092\u884c\u3046\u3053\u3068\u306e\u307f\u306a\u3089\u305a\uff0c\u4ed6\u7121\u7dda\u5c40\u3068\u306e\u898b\u901a\u3057\u304c\u3068\u308c\u308b\u3053\u3068\u306b\u3088\u308b\u4e88\u88ab\u5e72\u6e09\u306e\u767a\u751f\u78ba\u7387\u306e\u8a55\u4fa1\u306b\u7528\u3044\u3089\u308c\u308b\u306a\u3069\u3057\u3066\u3044\u308b\uff0e\u307e\u305f\uff0c\u79fb\u52d5\u901a\u4fe1\u7b49\u306e\u30dd\u30a4\u30f3\u30c8\uff0d\u30a8\u30ea\u30a2\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u901a\u4fe1\u5bb9\u91cf\u306e\u8a55\u4fa1\u306b\u304a\u3044\u3066\u306f\uff0c\u898b\u901a\u3057\u7387\u3092\u7528\u3044\u3066\u500b\u3005\u306e\u7aef\u672b\u6bce\u306b\u898b\u901a\u3057\u306e\u6709\u7121\u3092\u8a2d\u5b9a\u3057\uff0c\u305d\u308c\u306b\u3088\u3063\u3066\u8a55\u4fa1\u306b\u7528\u3044\u308b\u4f1d\u642c\u640d\u5931\u63a8\u5b9a\u5f0f\u3092\u5909\u66f4\u3059\u308b\u7b49\uff0c\u898b\u901a\u3057\u306e\u6709\u7121\u306e\u5834\u5408\u5206\u3051\u306b\u7528\u3044\u3089\u308c\u308b\uff0e<\/p>\n\n\n\n

\u3000\u96fb\u6ce2\u4f1d\u642c\u306b\u304a\u3044\u3066\u201c\u898b\u901a\u3057\u201d\u3068\u8a00\u3063\u305f\u5834\u5408\uff0c\u5927\u304d\u304f\u4e8c\u3064\u306e\u5b9a\u7fa9\u304c\u5b58\u5728\u3059\u308b\uff0e\u4e00\u3064\u306f\u9001\u53d7\u4fe1\u70b9\u9593\u3092\u7d50\u3076\u898b\u901a\u3057\u7dda\u304c\u906e\u3089\u308c\u306a\u3044\u5834\u5408\uff0c\u3082\u3046\u4e00\u3064\u306f\u898b\u901a\u3057\u7dda\u306e\u5468\u56f2\u306b\u5730\u7269\u3084\u4ec0\u5668\u304c\u5b58\u5728\u305b\u305a\uff0c\u305d\u308c\u3089\u304b\u3089\u306e\u56de\u6298\u306e\u5f71\u97ff\u304c\u306a\u3044\u5834\u5408\u3067\u3042\u308b\uff0e\u5f8c\u8005\u306e\u5834\u5408\u306f\uff0c\u7b2c1\u30d5\u30ec\u30cd\u30eb\u30be\u30fc\u30f3\u304c\u969c\u5bb3\u7269\u306b\u304b\u304b\u3089\u306a\u3044\u3053\u3068\u304c\u76ee\u5b89\u306b\u306a\u308b\uff0e\u3053\u3053\u3067\u8ff0\u3079\u308b\u201c\u898b\u901a\u3057\u201d\u306f\uff0c\u524d\u8005\u306e\u5b9a\u7fa9\u306b\u6cbf\u3063\u305f\u3082\u306e\u3067\u3042\u308a\uff0c\u9001\u53d7\u4fe1\u70b9\u9593\u3092\u7d50\u3076\u898b\u901a\u3057\u7dda\u304c\u906e\u3089\u308c\u306a\u3044\u5834\u5408\u3092\u6307\u3059\uff0e<\/p>\n\n\n\n

\u3000\u898b\u901a\u3057\u7387\u306e\u63a8\u5b9a\u6cd5\u306b\u306f\u69d8\u3005\u306a\u3082\u306e\u304c\u3042\u308b\u304c\uff0cBS\uff0dUT\u9593\u8ddd\u96e2\u306e\u307f\u3092\u30d1\u30e9\u30e1\u30fc\u30bf\u3068\u3057\u305f\u898b\u901a\u3057\u7387\u306e\u63a8\u5b9a\u5f0f\u3068\uff0cBS\uff0dUT\u9593\u8ddd\u96e2\u306b\u52a0\u3048\u3066\uff0c\u57fa\u5730\u5c40\u9ad8\uff0c\u7aef\u672b\u5c40\u9ad8\uff0c\u8a55\u4fa1\u3059\u308b\u9818\u57df\u306e\u5efa\u7269\u9ad8\u3055\u5206\u5e03\uff0c\u5efa\u7269\u5bc6\u5ea6\u7b49\u3082\u30d1\u30e9\u30e1\u30fc\u30bf\u3068\u3057\u3066\u7528\u3044\u308b\u63a8\u5b9a\u6cd5\u3068\u306b\u5927\u5225\u3067\u304d\u308b\uff0e\u524d\u8005\u3092Site-general\u30e2\u30c7\u30eb\uff0c\u5f8c\u8005\u3092Site-specific\u30e2\u30c7\u30eb\u3068\u547c\u3076\u3053\u3068\u306b\u3059\u308b\uff0e\u4e3b\u306aSite-general\u30e2\u30c7\u30eb\u3068\u3057\u3066\u300cITU-R\u5831\u544aM.2412\u306e\u898b\u901a\u3057\u7387\u63a8\u5b9a\u5f0f<\/a>\u300d\uff0c \u4e3b\u306aSite-specific\u30e2\u30c7\u30eb\u3068\u3057\u3066\u300cITU-R\u52e7\u544aP.1410\u306e\u898b\u901a\u3057\u7387\u30e2\u30c7\u30eb\u300d\uff0c\u300c\u90fd\u5e02\u5185\u30a2\u30af\u30bb\u30b9\u7121\u7dda\u901a\u4fe1\u306e\u305f\u3081\u306e\u898b\u901a\u3057\u7387\u30e2\u30c7\u30eb<\/a>\u300d\u7b49\u304c\u4e0a\u3052\u3089\u308c\u308b\u304c\uff0c\u3053\u3053\u3067\u306f\u300cITU-R\u52e7\u544aP.1410\u306e\u898b\u901a\u3057\u7387\u30e2\u30c7\u30eb\u300d\u306b\u3064\u3044\u3066\u7d39\u4ecb\u3059\u308b\uff0e<\/p>\n\n\n\n

\u30e2\u30c7\u30eb\u306e\u8aac\u660e<\/strong>\u3000<\/h3>\n\n\n\n

\u3000ITU-R\u52e7\u544aP.1410\u306b\u306f\uff0cLMDS\uff08Local Multipoint Distribution System\uff09\u7b49\u306e\u56fa\u5b9aBWA\uff08Broadband Wireless Access\uff09\u30b7\u30b9\u30c6\u30e0\u306e\u7121\u7dda\u30be\u30fc\u30f3\u8a2d\u8a08\u3092\u76ee\u7684\u3068\u3057\u3066\u958b\u767a\u3055\u308c\u305f\u898b\u901a\u3057\u7387\u306e\u8a55\u4fa1\u30e2\u30c7\u30eb\u304c\u63a1\u9332\u3055\u308c\u3066\u3044\u308b[1]\uff0e\u672c\u30e2\u30c7\u30eb\u3067\u4eee\u5b9a\u3055\u308c\u3066\u3044\u308b\u8857\u4e26\u307f\u306e\u30e2\u30c7\u30eb\u3092\u56f31\uff0c\u304a\u3088\u3073\uff0c\u7279\u5fb4\u3092\u88681\u306b\u793a\u3059\uff0e\u307e\u305f\uff0c\u3053\u306e\u30e2\u30c7\u30eb\u306b\u73fe\u308c\u308b\u5404\u7a2e\u30d1\u30e9\u30e1\u30fc\u30bf\u306b\u3064\u3044\u3066\u88682\u306b\u793a\u3059\uff0e<\/p>\n\n\n

\n
\"\"<\/figure><\/div>\n\n\n
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\n
\u3000\u3000\u3000\u88681\u3000\u8857\u4e26\u307f\u30e2\u30c7\u30eb\u306e\u7279\u5fb4<\/span><\/figure>\n
\n\n\n\n\n\n
\u5efa\u7269\u306e\u5411\u304d<\/td>\n\u4e00\u69d8<\/td>\n<\/tr>\n
\u5927\u5730\u9762\u9ad8<\/td>\n\u4e00\u69d8<\/td>\n<\/tr>\n
\u5efa\u7269\u9593\u9694<\/td>\n\u7b49\u9593\u9694<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n

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\u3000\u3000\u3000\u88682 (a)\u3000\u8857\u4e26\u307f\u30e2\u30c7\u30eb\u306e\u7279\u5fb4<\/p>\n<\/figure>\n

\n\n\n\n\n\n
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\u5efa\u307a\u3044\u7387<\/p>\n<\/td>\n

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\\(\u03b1\\)<\/p>\n<\/td>\n<\/tr>\n

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\u5efa\u7269\u5bc6\u5ea6<\/p>\n<\/td>\n

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\\(\u03b2\uff08\u500b\/{\\rm km}^2\uff09 \\)<\/p>\n<\/td>\n<\/tr>\n

\n

\u5efa\u7269\u9ad8\\(h\\)\u306e\u5206\u5e03<\/p>\n<\/td>\n

\n

\\(
P(h)= {\\displaystyle \\frac{ {\\rm e}^{- \\frac{h^2}{2 \\gamma^2 }}h }{\\gamma^2} }
\\)<\/p>\n

\uff08\u6700\u983b\u5024\u03b3\u306e\u30ec\u30a4\u30ea\u30fc\u5206\u5e03\uff09<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n

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.\u3000\u3000\u3000
\u3000\u3000\u3000\u88682 (b)\u3000\u906e\u853d\u4f53\uff08\u5efa\u7269\uff09\u306b\u95a2\u3059\u308b\u30d1\u30e9\u30e1\u30fc\u30bf<\/p>\n<\/figure>\n

\n\n\n\n\n
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\u5efa\u7269\u5f62\u72b6<\/p>\n<\/td>\n

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\u6b63\u65b9\u5f62<\/p>\n<\/td>\n<\/tr>\n

\n

\u5efa\u7269\u5e45<\/p>\n<\/td>\n

\\(
{\\displaystyle \\frac{ r_{rx} \\sqrt{\u03b1}}{floor(r_{rx}\u00a0 \\sqrt{\u03b1\u03b2}) } }
\\)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n

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\\(floor(*)\uff1a*\\)\u3092\u8d85\u3048\u306a\u3044\u81ea\u7136\u6570\u3092\u8868\u3059\u95a2\u6570<\/p>\n\n\n\n

\u3000\u57fa\u5730\u5c40\u304b\u3089\u306e\u8ddd\u96e2\\(d_i\\)\u306b\u304a\u3051\u308b\u898b\u901a\u3057\u304c\u53d6\u308c\u308b\u78ba\u7387\\(P_{LoS,i} \\)\u306f\u6b21\u5f0f\u3067\u4e0e\u3048\u3089\u308c\u308b\uff0e<\/p>\n\n\n\n

\\(
{\\displaystyle P_{LoS,i}= \\prod_{j=0}^{i} P_j\u3000\u3000j=\\in \\{ 0,…,i \\} }
\\)<\/p>\n\n\n\n

\u3053\u3053\u3067\u3001<\/p>\n\n\n\n

\\(
{\\displaystyle P_i=1-{\\rm e}^{-\\frac{h_i^2} {2\\gamma^2} } }
\\)<\/p>\n\n\n\n

\\(
{\\displaystyle h_i=h_{tx}- \\frac{d_i (h_{tx}-h_{rx})} {r_{rx}} }
\\)<\/p>\n\n\n\n

\u3000\\(\u03b3\\)\u306f\u5bfe\u8c61\u3068\u3059\u308b\u30a8\u30ea\u30a2\u306e\u5efa\u7269\u9ad8\u5206\u5e03\u3092\u30ec\u30a4\u30ea\u30fc\u5206\u5e03\u3068\u3057\u3066\u4eee\u5b9a\u3057\u305f\u3068\u304d\u306e\u6700\u983b\u5024\u3092\u8868\u3059\u304c\u3001\u5177\u4f53\u7684\u306b\u306f\u8a55\u4fa1\u30a8\u30ea\u30a2\u306e3D\u5efa\u7269\u30c7\u30fc\u30bf\u7b49\u304b\u3089\u5efa\u7269\u9ad8\u3055\u5206\u5e03\u3092\u5c0e\u304d\u51fa\u3057\uff0c\u305d\u308c\u3089\u304c\u30ec\u30a4\u30ea\u30fc\u5206\u5e03\u306b\u5f93\u3046\u3068\u3057\u3066\u56de\u5e30\u3059\u308b\u7b49\u3057\u3066\u6c42\u3081\u308b\uff0e\u6587\u732e[1]\u306b\u306f\u4f8b\u3068\u3057\u3066\u30a4\u30ae\u30ea\u30b9\uff08Malvern)\u306b\u304a\u3051\u308b\u5024\u304c\u5efa\u853d\u7387\\(\u03b1\\)\uff0c\u5efa\u7269\u5bc6\u5ea6\\(\u03b2\\)\uff0c\u3068\u5171\u306b\u63b2\u8f09\u3055\u308c\u3066\u3044\u308b\uff0e\uff08\u3053\u306e\u5f8c\u306e\u8a08\u7b97\u4f8b\u3067\u4f7f\u7528\u3057\u3066\u3044\u308b\u306e\u3067\u53c2\u7167\u3055\u308c\u305f\u3044\uff0e\uff09<\/p>\n\n\n\n

\u3000\u307e\u305f\uff0c\u8907\u6570\u306e\u57fa\u5730\u5c40\u306b\u3088\u308b\u898b\u901a\u3057\u7387\u3092\uff0c\u5c11\u306a\u304f\u3068\u3082\u4e00\u3064\u306e\u57fa\u5730\u5c40-\u7aef\u672b\u9593\u306b\u898b\u901a\u3057\u304c\u53d6\u308c\u308b\u78ba\u7387\uff08\u7b49\u4fa1\u898b\u901a\u3057\u7387\uff09\\( P_{LoS,i}^e \\)\u3068\u3057\u3066\u5b9a\u7fa9\u3059\u308b\u3068\uff0c\u5404\u57fa\u5730\u5c40-\u7aef\u672b\u9593\u306e\u898b\u901a\u3057\u7387\u304c\u4e92\u3044\u306b\u72ec\u7acb\u3067\u3042\u308b\u3068\u4eee\u5b9a\u3067\u304d\u308b\u5834\u5408\uff0c\u6b21\u5f0f\u3067\u8868\u3059\u3053\u3068\u304c\u51fa\u6765\u308b\uff0e<\/p>\n\n\n\n

\\( {\\displaystyle
P_{LoS,i}^e = 1-\\prod_{k=1}^{m} (1-P_{LoS,i,k} )
} \\)<\/p>\n\n\n\n

\u8a08\u7b97\u4f8b<\/h3>\n\n\n
\n
\"\"
\u56f32\u3000Malvern\u5730\u533a (UK)\u306e\u898b\u901a\u3057\u7387\u8a08\u7b97\u4f8b<\/span><\/figcaption><\/figure><\/div>\n\n
\n
\"\"
\u56f33\u3000\u6e0b\u8c37\u5730\u533a\u306e\u898b\u901a\u3057\u7387\u8a08\u7b97\u4f8b<\/span><\/figcaption><\/figure><\/div>\n\n\n

\u53c2\u7167<\/h2>\n\n\n\n[1] ITU-R Rec. P.1410-6, \u201cPropagation data and prediction methods required for the design of terrestrial broadband radio access systems operating in a frequency range 3 to 60 GHz,\u201d ITU-R Recommendations, P Series, ITU, Geneva, Aug. 2023.<\/p>\n","protected":false},"excerpt":{"rendered":"

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