Beyond the Cellular Systems Flashcards
3G Vision?
Universal global roaming Multi operator -> Virtual Operator Multimedia Increase data rates -384 Kbps while moving -2Mbps when stationary Increased Capacity
ITU?
International Telecommunication Union
Radio standards and spectrum
3GPP?
3G Partnership Project
Aims to produce technical specification for a 3rd gen based on the evolved GSM core networks.
W-CDMA (UMTS)
Wideband CDMA
Standard for UMTS
5 Mhz each way
HSPA?
High Speed Packet Access
Types of HSPA?
HSDPA
HSUPA
What does HSPA do?
High data speed up to 99.3 Mbps
Reduced latency
High system capacity
Key technologies of HSPA?
Use of higher modulation
Shorter Transmission Time Interval
Use of shared channel transmission
Use of link adaptation
LTE?
Long Term Evolution
Radio platform technology
Higher spectrum
Supports voice in the packet domain.
LTE Capabilities?
Downlink peak data rates up to 326 Mbps with 20 Mhz bandwidth.
TDD and FDD modes
Reduced latency
Advantages of LTE?
High throughput Low latency FDD and TDD Superior end user experience Seamless Connection Plug and play Simple Architecture
Evolution plan of 3GPP?
Evolved Packet System
Radio Access Technology evolution
Core Network evolution
Key technologies in LTE?
Multiple Antenna Technology
Multi-Carrier Technology
Packet Switched Radio Interface Technology
4G Canditdates?
LTE Advanced
IEEE 802.16m
LTE
Carrier Aggregation?
To achieve higher data rate, bandwidth higher than 20Mhz is required.
