Attributes Of WCDMA System - 3G Technology - Mobile Communication System | Summary and Q&A

TL;DR

WCDMA attributes include service flexibility, system capacity and coverage, improved voice capacity, seamless access, economies of scale, and modulation techniques.

Key Insights

• 🐕‍🦺 WCDMA offers service flexibility, allowing mixed data rates on a single carrier for true multimedia services.
• 🙇 The system capacity and coverage of WCDMA surpass narrowband systems, thanks to coding gain and spectrum reuse.
• ✋ Improved voice capacity is provided by WCDMA, accommodating a higher number of simultaneous calls.
• 👻 WCDMA allows for the seamless delivery of circuit-switched and packet-switched services simultaneously.
• 💨 The fast access service of WCDMA ensures quick establishment of connections between users and transmitters.
• 📡 Quality of service is enhanced in WCDMA through the use of rake receivers, selecting the strongest signal and combining signals for better reception.
• 😘 WCDMA offers economies of scale due to its cost-effective system and lower transmitted power requirements.

Transcript

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Questions & Answers

Q: What is the bandwidth provided by WCDMA?

WCDMA provides a bandwidth of 5 megahertz, accommodating data rates from 8 kbps up to 2 Mbps, enabling the transmission of both voice and packet data simultaneously.

Q: How does WCDMA achieve improved voice capacity?

With 15 x 2 megahertz of available bandwidth for voice communication in a sectored scenario, a single sector can handle 192 simultaneous calls, and a three-sector scenario can handle 576 simultaneous calls, making voice transmission more efficient.

Q: What is the advantage of multi-service per connection in WCDMA?

WCDMA allows the mixing and delivery of circuit-switched and packet-switched services of varying bandwidths. Users can access multiple services, such as voice and data, simultaneously, providing better flexibility and convenience.

Q: How does WCDMA ensure fast access to services?

WCDMA has a connection setup time of only a tenth of a millisecond, allowing for quick establishment of connections between users and transmitters, providing fast access to services.

Q: How does WCDMA improve the quality of service?

WCDMA utilizes rake receivers on the receiver side to select the strongest signal from multiple path signals, resulting in better signal quality and enhanced service delivery.

Summary & Key Takeaways

• WCDMA provides service flexibility by allowing mixed data rates on a single carrier, enabling true multimedia services.

• The system capacity and coverage of WCDMA are improved compared to narrowband systems, thanks to coding gain and spectrum reuse.

• WCDMA offers improved voice capacity, allowing for more simultaneous calls, and supports mixed circuit-switched and packet-switched services.