無線物聯(lián)網(wǎng)LTE MTC/eMTC ,NB-IoT認(rèn)證測(cè)試
一、物聯(lián)網(wǎng)發(fā)展趨勢(shì)
NB-IoT是基于移動(dòng)通信網(wǎng)絡(luò)的物聯(lián)網(wǎng)技術(shù)體系，具有廣覆蓋、大連接、低功耗、低成本的優(yōu)勢(shì)，解決了傳統(tǒng)物聯(lián)網(wǎng)存在的技術(shù)碎片化、覆蓋不足的問題，極大提升了物聯(lián)網(wǎng)的應(yīng)用能力，獲得了業(yè)內(nèi)的廣泛支持，將成為物聯(lián)網(wǎng)主流技術(shù)。
目前，全球多個(gè)運(yùn)營(yíng)商緊跟NB-IoT發(fā)展步伐，在標(biāo)準(zhǔn)協(xié)議完成之后第一時(shí)間進(jìn)行技術(shù)驗(yàn)證、測(cè)試和商用部署。根據(jù)GSA統(tǒng)計(jì)，截至2019年1月中旬，全球45個(gè)國(guó)家/地區(qū)的78家運(yùn)營(yíng)商正式商用NB-IoT網(wǎng)絡(luò)，網(wǎng)絡(luò)數(shù)量是去年同期的兩倍。
二、物聯(lián)網(wǎng)的應(yīng)用以及技術(shù)標(biāo)準(zhǔn)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]
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根據(jù)CEPT(ECC)定義的標(biāo)準(zhǔn)，信特斯可以完整的測(cè)試LTE MTC/eMTC、NB-IoT UE端的測(cè)試標(biāo)準(zhǔn)，以下是UE終端，BS終端，多功能終端的標(biāo)準(zhǔn)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). |
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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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