Technology

Today, we are excited to see how ubiquitous information and communications technology (ICT) is changing our daily lives. While increasingly intelligent networks are beginning to assist smarter handheld and wearable devices in catering for the best wireless experience, we are dedicated to create a range of technology products and services to augment the next-generation ICT ecosystem.

As powerful and innovative ICT solutions are taking off rapidly, our lives will never be the same: we will become exposed to new unrivalled
opportunities facilitated by the fifth-generation (5G) mobile networking infrastructure that is steadily converging with consumer and industrial Internet of Things (IoT) connectivity landscape.

These decisive developments will enrich our social and business opportunities, thus leading to unprecedented transformation of everyday wireless experience at home and at work. In light of this background, our company aims at advancing the 5G/IoT innovation along the following lines, among others.

Our Technologies

Device to Device with WiFi Direct

Objective (3GPP):
Assist LTE UEs in setup of D2D links

YLV solutions

  • Technology evaluation for D2D links (WiFi Direct, in-band LTE, unlicensed band LTE)
  • Secure content & peer discovery (3GPP contributions, patents)
  • Proximity-triggered WiFi link creation (technology, prototype)
  • Transparent fallback procedures on D2D link failure (technology, prototype, patents)
User
Data Rate
Spectrum
efficiency
Area
Capacity
Connection
Density

Multi-radio cellular access

Objective (3GPP):
Use multiple radio interfaces in cellular networks

YLV solutions

  • Evaluation of both conventional (A) and forthcoming (B) approaches
  • UE-centric selection of optimal radio links for given service (algorithm, patents)
  • Network-wide (cloud) link selection (algorithm, patents)
  • Soft-handoff mode switching (technology, prototype)
  • WiFi AP load estimation and reporting (technology, prototype)
User
Data Rate
Spectrum
efficiency
Area
Capacity
Connection
Density

MTC and Industrial Internet

Objective (3GPP):
Reliable and fast connection for future industry

YLV solutions

  • Optimization of LTE extended access barring (analysis, algorithm)
  • LTE Coverage enhancements (analysis, network planning)
  • NB-IoT evaluation (analysis, network planning)
  • Reliable MTC:
    - Low-rate: ”cellular”, automotive
    - High-capacity: WiFi-based
    - Ultra-high rate: mmWave
User
Data Rate
Spectrum
efficiency
Area
Capacity
Connection
Density

IEEE 802.11ay contributions

Objective (IEEE):
802.11ad needs improvements to support densification

YLV solutions

  • Spatially consistent channel model for mmWave (algorithm)
  • Contention in a dense mmWave deployment (analysis, evaluation)
  • Spatial reuse in contention-based access networks (algorithms, patents)
  • Alternative MAC protocols for mmWave (algorithms, patents)
User
Data Rate
Spectrum
efficiency
Area
Capacity
Connection
Density

Dynamic Licensed Shared Access

Objective (ETSI):
Dynamic configuration of LSA agreements (in near real-time)

YLV solutions

  • Interference control procedures for the UL & DL channels (algorithms)
  • Fallback measures to prevent QoS degradation (algorithms, prototype)
User
Data Rate
Spectrum
efficiency
Area
Capacity
Connection
Density

Cellular mmWave research

Objective (3GPP):
Enable cellular access in mmWave bands

YLV solutions

  • Blockage models for static and mobile links (analysis, algorithms)
  • Link stability models (analysis)
  • Channel modelling with ray launcher (tools, analysis)
  • Coverage prediction for mmWave deployments (tools, analysis)
User
Data Rate
Spectrum
efficiency
Area
Capacity
Connection
Density
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