12.Key technologies
Table 2. Key technologies
- (1) Downsized and light-weight equipment based on MMIC and antenna technology
- MMICs for RF module
- ASICs for base-band modules
- AP is mountable on telephone pole
- WT is mountable on house veranda or under-eaves of customer premise
- (2) AP antenna choices for diverse deployment circumstances
- Omni antenna and sectored antenna for residential areas
- Horn antenna (wide directivity in vertical plane) for an apartment house accommodation
- Cassegrain antenna for point-to-point radio connection
- (3) Fairness control of throughput against heavy users
- Round-robin control and queuing
- (4) OpS for WIPAS OAM services
- Tests (BER, loopback etc.), monitoring and alarm detections are featured
- (5) Radio zone design system
- Realistic interference estimations and economical deployment design is realized by 3D database (incl. geographical features and architectures )
- (6) Economical installation methods
- Cost minimal installation methods were realized by parallel development of equipment and metal supports
- Cost minimal installation methods were realized by parallel development of equipment and metal supports
[ Equipment appearance ] ・ [ MAC processing ]
[ Examples of AP and WT installations ]
[ Operation system ] ・ [ Radio zone design tool ]
 11.Example of radio zone design |
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 13.Transmission distance |