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.
What are the main components of 3G architecture?
There are three major parts to a 3G mobile network:
- A Radio Access Network (RAN). This is a hierarchical arrangement of cell towers and base stations.
- A core network (usually IP) tying the RAN to the 3G service network.
- A service network reached through the core network.
What are the main features of WCDMA?
Key Features of WCDMA
- Supports high data rate transmission: 384 Kbps with wide area coverage, 2 Mbps with local coverage.
- High service flexibility: supports multiple parallel variable rate services on each connection.
- Both Frequency Division Duplex (FDD) and Time Division Duplex (TDD).
What is 3G network architecture?
Description of 3G architecture: User Equipment The 3G system consists of two main parts: the User Equipment (UE) and the UMTS Terrestrial Radio Access Network (UTRAN). The UE is the mobile phone and the UTRAN is the base station and the network intelligence. Both the UE and the UTRAN are composed of different layers.
Why is WCDMA used?
Falling under both the UMTS and IMT-2000 umbrellas, WCDMA enables GSM carriers to provide a higher data rate than the EDGE network. Supporting both voice and data, WCDMA provides a modest speed increase, and many GSM operators jumped to HSPA for data, which is also based on WCDMA, while keeping GSM for voice.
What network is WCDMA?
3G network
WCDMA is the 3G network that uses radiofrequency to transfer data in the form of calls, messages, or the internet which is also called UMTS. GSM represents 2G networks that were developed way before WCDMA and helps to transfer data through radio technology in the system.
Which is the technology used by WCDMA to transfer data packets in its RAN network?
UMTS uses Wideband CDMA – WCDMA – as the radio transmission standard. It employs a 5 MHz channel bandwidth. Using this bandwidth it has the capacity to carry over 100 simultaneous voice calls, or it is able to carry data at speeds up to 2 Mbps in its original format.
What are the advantages of WCDMA over traditional landlines?
Voice capacity offered is very high due to interference control mechanisms, including frequency reuse of 1, fast power control, and soft handover. WCDMA can offer a lot more voice minutes to customers. Meanwhile WCDMA can also improve broadband voice service with AMR codec, which clearly provides better voice quality than fixed telephone landline.
Who is the best company for WCDMA/HSPA?
Rohde & Schwarz provides a complete product portfolio for WCDMA/HSPA/HSPA+: digital standards on general-purpose equipment such as vector signal generators and signal and spectrum analyzers; communications testers and complete conformance test systems.
What is the difference between UMTS WCDMA HSPA/HSPA+ and HSDPA?
UMTS WCDMA/HSPA/HSPA+ is being specified in the 3rd Generation Partnership Project (3GPP). 3GPP Release 99 contains the first WCDMA specifications. HSDPA and HSUPA were introduced in 3GPP Release 5 and 3GPP Release 6, respectively. HSPA+ forms part of 3GPP Releases 7, 8, 9 and 10.