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Wireless Connectivity Solution

Provides PICOCAST wireless communication solution to provide multi-function bi-directional digital connection such as Unicast, Multicast, Broadcast, Sensor, Control function in wireless range of several hundred meters.

And provides solutions for GIARDIAN wireless communication technology, a secure data transmission technology that combines Binary CDMA wireless communication technology and national security algorithm (ARIA).

PICOCAST provides the following functions simultaneously within a few of meters of user space; one-to-one communication between IT devices (unicast), group communication (multicast), broadcast, sensor, and control, and it also provides high-quality, low-power, and multi-functional interactive digital access for “wireless section within tens of meters”. Therefore, PICOCAST is an internationally standardized short-range wireless communication method that can deliver true ubiquitous solutions by converging user-centric broadcast and communication.



  • Technology that enables convergences among short-range broadcast, communication, sensor, and control
    • Support ubiquitous convergence services with a single solution, differentiated from existing short-range wireless methods
    • By using container structure, support from low-power sensor to high speed multimedia contents, with the same chip
  • International standard technology that has solved chronic interferences among users and among cells.
  • Technology that has solved the problem of transmission capacity shortage, which is the most serious dilemma for realizing next generation mobile communication.
    • Existing technologies are impossible to expand capacity more than 10 times, even with signal processing technology and new spectrum allocation.
    • However, PSC is able to reduce the size of cell to 1/100, and to expand capacity 10,000 times, by eliminating interferences among users.
  • Technology that facilitates information protection with outstanding security fuction.
    • 64 bit Group Code to prevent cross-talking among user groups and information leakage.
    • 16 bit Security Code to protect information of important users within group.
    • 64 bit Hopping Code to leap forward orthogonal frequency for avoiding radio wave interference.
    • 7 bit Scan Code to generate 128 bit Preamble for special purposes.
Solution for interference problem in user space

General communcation solution
PICOCAST container solution
Protocol Composition

Protocol of PICOCAST technology is composed of Master and Slave as existing other protocols, and Master and Slave are synchronized and exchange information each other.
However, Slaves can communicate directly each other without going through Master because there is no mutual interference thanks to container concept, and such a multicast is possible that only a designated Slave can receive several broadcast channels. Also, it is possible to implement convergence function between broadcast and communication that Slaves directly communicate each other while listening to Master’s broadcast.

GUARDIAN wireless communication

Guardian wireless communication technology is wireless security data transmission technology that combines pure native source technology Binary CDMA wireless communication technology and national security algorithm (ARIA)

Provides public wireless network service based on wireless network technology in the public service sector where national security function is needed, and solves problems (security, quality, stability) of existing commercial wireless network technology

Secure data transmission technology for wireless public service for next generation public wireless network service

GUARDIAN wireless communication
  • High-speed data processing with ARM926EJ-S (132MHz or higher) core
  • Provides 8/16/32 bit local bus interface
  • Provides 16/32-bit external memory interface
  • Provides carious boot modes
    • Serial Flash boot mode via SPI
    • Boot Mode with External Flash Memory
    • Boot mode via the Local Bus interface
  • Power management support for low power consumption
    • Idle mode
    • Deep Power down mode
Host Interface
  • Supports 16 bit PC card I/F
  • Supports 16/32-bit Local Bus I/F for External Processor
  • Supports DMA for External USB
Radio Interface
  • On-chip 10-bit, 60MHz DACs for In-Phase and Quadrature TX Outputs
  • On-chip 10-bit, 60MHz Differential ADCs for In-Phase and Quadrature RX Inputs
  • Digital RX Automatic Gain Control (AGC) Outputs
Medium Access Controller
  • Hardware-Based MAC Access Protocol Management
  • Hardware-Based RX Frame Parsing
  • Hardware-Based Immediate Acknowledgement
  • Hardware-Based Encryption/Decryption using CCM(CTR+CBC-MAC)
  • Mode that use the 128 bit AES and ARIA as a Block Cipher Algorithm
  • Supports different clock domain between MAC and PHY
  • Dedicated MAC DMA for real-time MAC data processing
  • Dynamic Allocation of Transmit (TX) and Receive (RX) Memory Blocks
  • Channel Probing and Dynamic Link Quality Control
Baseband Processor
  • ISO IEC JTC1 SC6 N24771 Compliant
  • KS X 4650-1 Compliment
  • Variable Chip-rate Support : ~ 15M chip/sec
  • Support CCA mode(Energy level and RSSI)
  • Link Quality Indication
  • QPSK,DQPSK,16/32/64QAM+TCM Modulation
  • Auto LNA/RF AGC Control
External Memory Interface
  • Supports External Flash, Asynchronous RAM and Slave Devices
  • Up to 4M byte of Address Space Per Chip select Output
  • Supports Programmable 8/16/32bits Memory Bus Width Per Each Bank
System Level
  • MCU core: ARM926EJ-s with 16KB I-Cache and 16KB D-Cache
  • AMBA 2.0 Compliant Multi-bus System
  • General DMA for Internal Data Transfer
  • 2KB Internal ROM/96KB Internal SP-SEAM for code/64KB Internal DP-SPAM
  • Single-Chip MAC and Baseband Processor
  • 2-ch SPI for Serial EEPROM Interface
  • 16C550 Compatible 2-ch UART
  • 21-ch Interrupt Controller
  • 32-bit Watch-dog Timer
  • 4-ch 32-bit Counters/Times
  • 16 GPIO Signals with Interrupt Capability
  • External Crystal or Oscillator for Clock Source
  • On-chip clock generator with PLL
  • Power Management Control for Low Power
  • 1.2V Low-Power Core Supply Voltage
  • 3.3V I/O Supply Voltage