LMR and LTE for Public Safety in 700 MHz Spectrum
| Autor: | Roshdy H. M. Hafez, Aizaz U. Chaudhry |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Mobile radio
Radio access network lcsh:T Computer Networks and Communications Computer science business.industry Public safety network Interoperability United States 2008 wireless spectrum auction 020206 networking & telecommunications 02 engineering and technology Virtualization computer.software_genre lcsh:Technology Telecommunications network lcsh:Telecommunication lcsh:TK5101-6720 Broadband 0202 electrical engineering electronic engineering information engineering 020201 artificial intelligence & image processing Electrical and Electronic Engineering Telecommunications business computer Information Systems |
| Zdroj: | Wireless Communications and Mobile Computing, Vol 2019 (2019) |
| ISSN: | 1530-8677 1530-8669 |
| DOI: | 10.1155/2019/7810546 |
| Popis: | This paper presents a concise overview of current public safety communication networks known as LMR (Land Mobile Radio) and emerging LTE- (Long-Term Evolution-) based broadband public safety networks to be deployed in the 700 MHz band. A broadband nationwide network for public safety based on LTE is inevitable where shared or dedicated types of LTE-based public safety networks are possible. Current LTE services do not meet mission-critical requirements and several enhancements have been defined by 3GPP to address this in Releases 12 and 13. First responders are familiar with LMR and consider it to be a reliable technology with massive deployment everywhere. Therefore, it is expected that LMR will continue to exist alongside any new LTE-based broadband public safety network. Recent LTE releases (particularly Release 15) addressed the LMR-LTE interoperability issue and described comprehensive interworking facilities. New and upcoming features and services of LTE in Releases 14 and 15, such as mission-critical data, mission-critical video, and aerial user equipments, are also directly applicable to public safety. The paper endeavours to provide a quick yet meaningful review of all these issues. It also offers a look ahead at the new and rapidly advancing virtualization technologies, such as software-defined radio access network, and radio access network slicing, as enablers for future public safety networks. |
| Databáze: | OpenAIRE |
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