Major Technologies (Network)
Radio access networks and core networks-related technologies are introduced.
The following technologies are presented in the pages for related technologies.
Green Base Station
Approaches to Environmentally-Friendly, Disaster-Resistant Green Base Station are describd.
Weathercast-linked Control in Environmentally Friendly, Disaster-resistant Green Base Stations and Field Trials (PDF format:2MB)
Green Base Station Power Control Technologies for Reducing Costs and Diaster Risks (PDF format:1MB)
Environmentally-Friendly, Disaster-Resistant Green Base Station Test Systems (PDF format:933KB)
Speech and Audio Codec
Speech and audio coding systems are described.
3GPP EVS Codec for Unrivaled Speech Quality and Future Audio Communication over VoLTE (PDF format:2MB)
MPEG Unified Speech and Audio Coding Enabling Efficient Coding of both Speech and Music (PDF format:706KB)
Positioning Method and Location Information Functions employing those systems are described.
Advanced Positioning Method for Smartphones - Support of A-GNSS (GPS+GLONASS) and UE-A Positioning- (PDF format:2MB)
FOMA Location Information Functions Using SUPL International Roaming
Technologies that realize ALL-IP networks are described.
Basic SAE Management Technology for Realizing All-IP Network (PDF format:621KB)
Mobility Management for All-IP Core Network (PDF format:508KB)
IP-based FOMA Voice Network toward Enhanced Services and Improved Efficiencies (PDF format:1,021KB)
Expansion of IP Backbone Network Functions for All-IP Network (PDF format:832KB)
Highly Accurate Failure Detection System for Large-scale IP Networks (PDF format:852KB)
Ethernet Transmission Equipment ERP-SW for All-IP Transmission Paths (PDF format:730KB)
High-speed Mobile Satellite Communications
Technologies concerning WIDESTAR Ⅱ; high-speed mobile satellite communications service realizing diverse satellite communications, are described.
Overview of WIDESTAR Ⅱ Mobile Satellite Communications System and Service (PDF format:1MB)
Overview of WIDESTAR Ⅱ Mobile Satellite Communications Scheme (PDF format:852KB)
WIDESTAR Ⅱ Satellite Core Network System (PDF format:960KB)
WIDESTAR Ⅱ Satellite Base Station Equipment (PDF format:794KB)
WIDESTAR Ⅱ Base Station Maintenance and Monitoring System (PDF format:804KB)
Radio Access Network
Radio control equipment such as base stations and outdoor boosters is described.
Outdoor Booster Equipment for 2GHz FOMA
Technology development concerning core network equipment is described.
FOMA Core Network xGSN Packet Processing Nodes
Media Processing Node for Providing Value-added Media Services
The basics of Mobile Communication
Basic technologies to realize Mobile Communications are described.
Mobile Radio Transmission System
W-CDMA Technology Supporting Third-Generation Mobile Communications System
Cellular Mobile Communication System
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