What is soft handover in UMTS?

Softer handover is the situation where one base station receives two user signals from two adjacent sectors it serves. In the case of softer handover the base station receives 2 separated signals through multi-path propagation.

What is soft handover in LTE?

Soft handover is possible in CDMA because adjacent cells can operate on the same frequencies as long as they use different scrambling codes. This allows a UE to communicate with both cells during handover, making it a soft handover. LTE is based on OFDMA, which is fundamentally a frequency division method.

Which is better UMTS or LTE?

The main difference is that UMTS supports 3G and LTE can support 4G communication with better speeds compared to the UMTS. LTE supports the flexible bandwidth with the range in 1.4 to 20 Mhz while UMTS uses the static fixed carrier of frequency 5MHz.

What is LTE UMTS network?

UMTS stands for Universal Mobile Telecommunication System, and LTE stands for Long Term Evolution. GSM is a second-generation technology (2G), UMTS is a third-generation technology (3G), and LTE is a fourth-generation technology (4G).

What is soft and hard handover?

Hard handover: This form of handover is essentially the same as that used for 2G networks where one link is broken and another established. Soft handover: This form of handover is a more gradual and the UE communicates simultaneously with more than one Node B or base station during the handover process.

Which is the soft handover?

Soft handover or soft handoff refers to a feature used by the CDMA and W-CDMA standards, where a cell phone is simultaneously connected to two or more cells (or cell sectors) during a call. Soft handover results in a diversity gain called soft handover gain. …

Can you have soft handover in GSM?

Also soft handovers are only possible when UE is in connected state with the DCH (dedicated channel). In case of HSDPA communication there is only hard handover (break before connect).

What is the difference between GSM, UMTS and LTE?

For simplicity, access technology is what connects a mobile phone to the mobile network by sending and receiving signals through the air interface wirelessly. GSM was the most widely deployed standard for the second generation of mobile networks. It used a combination of FDMA and TDMA to offer mobile communication services.

How did the 3G UMTS network architecture change?

It was the combination of these two network elements that provided the basis for the 3G UMTS network architecture. The radio access network changed considerably as a completely new radio interface was used based around the use of CDMA.

What does UMTS world stand for in Mobile News?

The UMTS World is an 3G mobile system news and information provider. Comprehesive coverage of UMTS / 3G news, licensing, business developments, 3G WCDMA telecommunication technology, multi media mobile phones and future communications. Home News Industry Technology Applications

What’s the difference between 2G and 3G UMTS?

3G UMTS Network Architecture. The UMTS network was based on that used for 2G, although major changes were seen to some terminology and to the radio access network . 3G UMTS includes: With the change from 2G to 3G, the emphasis for the systems changed from a focus on mobile voice communications to mobile data and general connectivity.