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What is WCDMA technology?
WCDMA (Wideband Code Division Multiple Access) UMTS standard for 3G digital mobile networks, using CDMA technology. It is the evolution path for GSM and EDGE to UMTS and offers increased voice capacity and theoretical peak data speeds of up to 2 Mbps.
Which country still use CDMA?
Active networks
| Operator | Country | Frequency (MHz) |
|---|---|---|
| U.S. Cellular | United States | 850 / 1900 |
| Verizon | United States | 850 / 1900 |
| PEOPLEnet | Ukraine | 850 |
| Intertelecom | Ukraine | 850 |
What is another name for CDMA2000 network?
CDMA2000 (also known as C2K or IMT Multi‑Carrier (IMT‑MC)) is a family of 3G mobile technology standards for sending voice, data, and signaling data between mobile phones and cell sites.
What is WCDMA Wikipedia?
W-CDMA (WCDMA; Wideband Code-Division Multiple Access), along with UMTS-FDD, UTRA-FDD, or IMT-2000 CDMA Direct Spread is an air interface standard found in 3G mobile telecommunications networks.
What is the importance of WCDMA?
CDMA offers the benefits of multipath diversity and soft handoffs. As an air interface technology, WCDMA is able to artificially increase a signal’s bandwidth. It does so by modulating each baseband symbol with a binary or quaternary signature with a much higher rate than that of the original data symbol.
What is WCDMA chip rate?
Chip Rate (W-CDMA(3GPP)/HSPA) Default: 3.84 MHz.
What is the chip rate of WCDMA?
3.84 Mcps
What is the chip rate of W-CDMA? Explanation: W-CDMA uses a chip rate of 3.84 Mcps. Chip rate is the product of symbol rate and spreading factor.
What is difference between CDMA and WCDMA?
The main difference between WCDMA and CDMA is that they are designed to work with different networks. WCDMA is a 3G technology designed to work alongside the 3G GSM network. CDMA, on the other hand, is a 2G technology that is a direct competitor to GSM.
What is the cheap rate of W-CDMA?
Explanation: W-CDMA uses a chip rate of 3.84 Mcps.
Are UMTS and CDMA same?
UMTS uses a form of CDMA that has a much wider bandwidth than some other cellualr technologies of the time. The basic channel spacing was 5MHz and as a result this form of CDMA was known as wideband CDMA or WCDMA. The data to be transmitted is encoded using a spreading code particular to a given user.
What are CDMA devices?
GSM handsets came with a SIM card slot, while CDMA phones did not. In other words, CDMA is a handset-based standard, with a phone number linked to a particular device. If you wanted to upgrade to another phone, you would have to get in touch with the network carrier, de-activate the old device and activate the new one.