基于现网挖潜的4G/5G低成本无线覆盖方案

doi:10.11959/j.issn.1000-0801.2021211

Abstract

Abstract:

Relevant research data shows that, the cost of China's 5G network deployment is expected to be about three times that of 4G.The network architecture, key technical principles and source hardware characteristics of the existing 4G and 5G networks were analyzed and studied.Three ideas for tapping the potential were proposed, which are using that how to use the old 4G resources in the construction of 5G networks, releasing 4G resources through 5G network deployment and maximizing use of 4G/5G sources, thereby reducing the investment cost and upgrade difficulty of the network.

Key words: 5G, 4G, making good use of the old, low costcoverage, tap the potential

CLC Number:

TN929.5

Dan YANG, Jing ZHANG, Peijin LV, Yun LU, Zhanchun YANG. 4G/5G low-cost wireless coverage scheme based on tapping the potential of existing networks[J]. Telecommunications Science, 2021, 37(9): 168-174.

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References 5

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5G演进策略	无源器件是否支持5G	单路DAS站点	双路DAS站点	综合造价/（元·m^-2）
直接升级	是	MR弱覆盖RRU占比=0	MR弱覆盖RRU占比=0	1.37
合路后升级	是	MR弱覆盖RRU占比=0	MR弱覆盖RRU占比=0	5.77
替换老旧无源器件后合路升级	否	MR弱覆盖RRU占比=0	MR弱覆盖RRU占比=0	6.26
先整改再合路升级	是	0<MR弱覆盖RRU占比≤20.34%	0<MR弱覆盖RRU占比≤44.77%	5.77～8.38（单路）　 5.77～16.11（双路）
叠加数字化室分	不涉及	MR弱覆盖RRU占比>20.34%	MR弱覆盖RRU占比>44.77%	31.51

反开场景	反开需同时满足条件	反开载波数
反开小区频段等于原覆盖	①载波配置≥5；②高负荷小区数≥4或平均利用率≥50%	2～3
小区频段	① 载波配置≥3；②高负荷小区数≥2或平均利用率≥50%	1～2
	①载波配置≥1；②高负荷小区数≥1或平均利用率≥50%	1
反开小区频段不等于原覆盖小区频段	①TDD载波配置≥2；②FDD载波配置≥1；③高负荷小区数≥2或平均利用率≥50%	1
频率重耕场景	配置2个频点且平均利用率≥25%	1
	配置3个频点且平均利用率≥16%	1
	配置3个频点且平均利用率≥40%	1～2

测试区域	平均RSRP/dBm	平均SINR/dB	下载速率/（Mbit·s^-1）	上传速率/（Mbit·s^-1）
1号新宿舍楼1～2楼	-64	28	47.57	8.7
1号新宿舍楼3～4楼	-69	27	63	9.3
1号新宿舍楼4～5楼	-64	29	55.58	8.92
2号新宿舍楼1～2楼	-65	26	47.19	9.02
2号新宿舍楼3～4楼	-68	25	74.09	8.8
2号新宿舍楼4～5楼	-66	27	79.46	9.41
3号新宿舍楼1～2楼	-67	28	34.72	8.1
3号新宿舍楼3～4楼	-63	25	53.41	8.44
3号新宿舍楼4～5楼	-65	24	46.62	8.66

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4G/5G low-cost wireless coverage scheme based on tapping the potential of existing networks

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