Background
IWAVE self-developed an integrated system based on LTE technology, which has obvious advantages in marine coverage and high practicability.
TD-LTE outdoor integrated system has the advantages of ultra-long coverage technology, high-power RRU technology, Power boosting technology, narrow beam broadcasting to enhance network coverage, high-gain CPE, low-frequency communication technology, etc., effectively improving the coverage of the military-civilian integration frequency band. Force. It has the characteristics of high integration and maintenance-free, suitable for complex and harsh environments, and provides stable and reliable transmission.
Technical Features of Products
Ultra-long coverage technology
Through special time slot configuration, the coverage distance can reach 90km to meet the communication needs of near, medium, and far seas. The commonly used special subframe configuration 7 (10:2:2) can support 15km, and the commonly used special subframe configuration 5 (3:9:2) can support 90km. Extreme configuration (loss of part of bandwidth), configuration 0, can reach 119km.
Narrow beam broadcasting enhances network coverage.
This technology can control channels, PDSCH TM2/TM3, CRS, etc., which is suitable for scenarios with limited downside CRS coverage. For ultra-long route coverage and small island coverage, the target coverage area is small and can be considered for use. It can be upgraded to CRS coverage by about 50%.
High-gain CPE
CPE low noise amplifier function enhances LTE reception gain. Equipped with an 8db omnidirectional antenna, while obtaining nearly 20dbi gain, Eliminate the penetration damage of 10~20db, further improve the reception effect, and the coverage distance can be increased by 150%-200%. The device is IP67 waterproof, maintenance-free after installation.
Low Frequency Propagation technology
The 600MHz frequency band is called "digital dividend", which has the advantages of low signal transmission loss, wide coverage, strong penetration, low networking cost, etc. Therefore, it is regarded as the golden frequency band for the development of mobile communication.
Low frequency has more propagation advantages, low transmission loss, and strong radiation ability. When deploying multi-base stations, the coverage advantage is obvious. For example, in dense urban areas, the number of deployment stations required for 1.4GHz/1.8GHz is 3-4 times that of 600MHz, and in empty scenarios such as suburbs or islands, it is 2-3 times the number of deployments in the 600M frequency band.
High integration, maintenance-free
The equipment is highly integrated without machine room deployment, the system integrates key LTE network elements such as RRU, BBU, EPC and the like, is convenient to deploy, and is basically zero in equipment waterproof grade IPv6.
There is no need for computer room deployment, and the equipment is highly integrated. The system integrates RRU, BBU, EPC and other key LTE network elements into one, which is convenient for deployment. The equipment is waterproof level IPV6, and there is basically no maintenance.
Networking Topology Map in this testing
Brief description of the testing
1、The TD-LTE outdoor integrated system is built on an iron tower or high-rise building near the island, and the public network wireless is used.
The public network router is a TD-LTE outdoor integrated system accessory, which can be installed, powered, and received from multiple operator base stations to ensure return stability.
2、The TD-LTE outdoor integrated system has high integration and integrates the core network, BBU and RRU to ensure the strength of high-power wide-area coverage while improving the operation stability of the equipment. The integrated system supports IP67 waterproof and adapts to complex environments and bad weather.
3、The TD-LTE outdoor integration system and CPE are covered by the military-civilian fusion frequency band (566-606 frequency points). The low-frequency space path loss is small, and the transmission with strong diffraction ability ensures bandwidth and increased coverage distance.
4、CPE industrial-grade IP67 is waterproof, adapts to the complex outdoor environment, and industrial-grade quality improves bandwidth and stability. Unified deployment and power supply with meteorological equipment.
Marine coverage testing result.
The equipment is set up in the high-rise building of Dishui Lake in Shanghai, which tests Yangshan Port and Hangzhou Bay respectively. The base station is deployed at the time with a tripod pole (33m above sea level), and the maximum test distance is 54km.
CPE signal strength-74, mobile phone (200mw) normal access, normal business, clear and smooth video. The project requirements at that time have been met, and further testing has not been carried out. It can achieve continuous coverage of the waters of Yangshan Island and Drishui Lake.
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Post time: Mar-27-2023
