无线物联网LTE MTC/eMTC ,NB-IoT认证测试
发表时间：2019-07-01
一、物联网发展趋势
NB-IoT是基于移动通信网络的物联网技术体系，具有广覆盖、大连接、低功耗、低成本的优势，解决了传统物联网存在的技术碎片化、覆盖不足的问题，极大提升了物联网的应用能力，获得了业内的广泛支持，将成为物联网主流技术。
目前，全球多个运营商紧跟NB-IoT发展步伐，在标准协议完成之后第一时间进行技术验证、测试和商用部署。根据GSA统计，截至2019年1月中旬，全球45个国家/地区的78家运营商正式商用NB-IoT网络，网络数量是去年同期的两倍。
二、物联网的应用以及技术标准要求
In Release-14 3GPP is enhancing the above technologies
? Positioning enhancements [eMTC, NB-IOT, EC-GSM-IOT]
? Multicast, mobility enhancements for [eMTC, NB-IOT]
? New power classes, access/paging enhancements [NB-IOT]
? Higher data rates and VoLTEsupport for [eMTC]
根据CEPT(ECC)定义的标准，信特斯可以完整的测试LTE MTC/eMTC、NB-IoT UE端的测试标准，以下是UE终端，BS终端，多功能终端的标准要求
Description and technical conditions for IoT Cellular Systems
Technologies | Applicable ETSI standards | Technical conditions |
EC-GSM-IoT | EN 301 502 [25] EN 301 511 [26] EN 301 908-18 [27] | No specific requirements in addition to GSM (note 1) and the applicable harmonised standards |
LTE MTC/eMTC | EN 301 908-1 [23] EN 301 908-13 [31] EN 301 908-14 [32] EN 301 908-15 [33] EN 301 908-18 [27] | No specific requirements in addition to LTE (note 2) and the applicable harmonised standards |
NB-IoT | EN 301 908-1 [23] EN 301 908-13 [31] EN 301 908-14 [32] EN 301 908-15 [33] EN 301 908-18 [27] | Standalone mode ? A frequency separation of 200 kHz or more between the standalone NB-IoT channel edge of one network and the UMTS/LTE channel edge of the neighbouring network. ? A frequency separation of 200 kHz or more between the standalone NB-IoT channel edge of one network and the GSM channel edge of the neighbouring network. In-band mode ? No specific requirements in addition to LTE (note 2) and the applicable harmonised standards Guard band mode ? A frequency separation of 200 kHz or more between the NB-IoT channel edge and the edge of the operator's block, taking into account existing guard bands between operators' block edges or the edge ofthe operating band (adjacent to other services). |
Note 1: Frequency separation requirements on GSM as defined in ECC Report 266 [14] Note 2: Frequency separation requirements on LTE as defined in ECC Report 266 [14] | ||
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