Cellular Communications: LTE
We are experts in Long Term Evolution (LTE). This is a wireless communication standard for cellular communications developed by the 3rd Generation Partnership Project (3GPP). LTE was originally aimed at increasing the capacity and speed of wireless data networks, and meanwhile to decrease the transfer latency, targeting at human-based applications.
Unfortunately, LTE is an overkill design for M2M applications where the amount of data to transmit is very low and where energy efficiency is a must. In addition, LTE was not designed to manage the previously unseen number of devices, orders of magnitude above the number human-based users. Therefore, there is a challenge ahead to re-design and make LTE suitable for M2M applications. CTTC joins this venture and focuses on three main areas:
- Device-to-Device communications.
- Reduction of control signaling (e.g., Random Access Channel) to avoid congestion when the number of connected devices is extremely high.
- Radio Resource Management for M2M (power control and scheduling) to enable the smooth coexistence of humans and devices.