What are Wcdma bands?

June 7, 2020 Off By idswater

What are Wcdma bands?

(Wideband Code Division Multiple Access) Wideband CDMA is a third-generation (3G) wireless standard which utilizes one 5 MHz channel for both voice and data, initially offering data speeds up to 384 Kbps. WCDMA was the 3G technology used in the US by AT and T-Mobile.

How many types of channels are there in Wcdma?

As shown in the figure, there are three types of UMTS channels viz. logical channels(RLC layer), transport channels(MAC layer) and physical channels(PHY layer). As they tranverse between layers they map to other layer frames.

What is the frequency bands allocated for UMTS?

UMTS uses wideband CDMA as the radio transport mechanism and the UMTS frequency channels are spaced by 5 MHz. The UMTS signal bandwidth is normally considered to be 5 MHz but this figure includes the 0.58 MHz guard bands either side.

What are UMTS data channels?

The UMTS channels are communication channels used by third generation (3G) wireless Universal Mobile Telecommunications System (UMTS) networks. UMTS channels can be divided into three levels: Physical. Transport.

Which frequency is 4G?

3G Vs 4G

3G 4G
Frequency Band 1.8 – 2.5 GHz 2 – 8 GHz
Bandwidth 5-20 MHz 5-20 MHz
Data rate Up to 2Mbps ( 384 kbps WAN) Up to 20 Mbps or more
Access Wideband CDMA Multi-carrier – CDMA or OFDM(TDMA)

Is LTE faster than UMTS?

Let us discuss some of the major key differences between UMTS and LTE: In a way, we can say that LTE is the successor of UMTS with better speeds and better communication standards. The main difference is that UMTS supports 3G and LTE can support 4G communication with better speeds compared to the UMTS.

What are the three types of UMTS channels?

As shown in the figure, there are three types of UMTS channels viz. logical channels (RLC layer), transport channels (MAC layer) and physical channels (PHY layer). As they tranverse between layers they map to other layer frames. For example logical channels are mapped to transport channels and transport channels are mapped tp physical channels.

Where are the UMTS frequency bands located in the world?

The UMTS frequency bands are radio frequencies used by third generation (3G) wireless Universal Mobile Telecommunications System networks. They were allocated by delegates to the World Administrative Radio Conference (WARC-92) held in Málaga-Torremolinos, Spain between 3 February 1992 and 3 March 1992.

What’s the bandwidth of a 3G UMTS signal?

3G UMTS bandwidth. UMTS uses wideband CDMA as the radio transport mechanism and the UMTS frequency channels are spaced by 5 MHz. The UMTS signal bandwidth is normally considered to be 5 MHz but this figure includes the 0.58 MHz guard bands either side.

How to calculate UARFCN for UMTS carrier frequencies?

UMTS carrier frequencies are designated by a UTRA Absolute Radio Frequency Channel Number, UARFCN. The UARFCN is used to define channel numbers in an easy and unambiguous fashion. The UARFCN can be easily calculated from the following equation or formula: UARFCN = 5 frequency in MHz