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How Cell Search in wcdma – initial Synchronization Procedure

Cell Search Procedure purpose is to give the UE the possibility of finding a wcdma cell and of determining the downlink scrambling code and frame synchronization of that wcdma cell. This is typically performed in 3 steps: PSCH (Slot synchronization): The UE uses the SCH’s primary synchronization code to acquire slot synchronization to a wcdma … Read more

How Channel Mapping in WCDMA

Here I Write about how the mapping can be done between logical, transport and physical channels. Not all physical channels are represented because not all physical channels correspond to a transport channel. The mapping between logical channels and transport channels is done by the MAC sub-layer. Different connections can be made between logical and transport … Read more

What is HS-DPCCH and High-Speed Dedicated Physical Control Channel work in WCDMA

Carrying information to acknowledge downlink transport blocks and feedback information to the system for scheduling and link adaptation of transport block CQI and ACK/NACK Physical Channel, Uplink, SF=256 A High-Speed Dedicated Physical Control Channel, or HS-DPCCH, is the third uplink channel for WCDMA. It makes it possible for changing power relations between to the dedicated … Read more

Is WiFi an example of WLAN?

Yes, Wi-Fi is indeed an example of a Wireless Local Area Network (WLAN). Let’s explore the definitions, characteristics, and applications of both Wi-Fi and WLAN to understand their relationship and how Wi-Fi fits into the broader context of wireless local area networking: 1. Wireless Local Area Network (WLAN): Definition: A WLAN is a type of … Read more

What date is the 3G shutdown?

The specific date for the shutdown of 3G (Third Generation) networks varies by country and telecommunications service provider. Several countries and major carriers had announced plans to sunset their 3G networks in the coming years. However, it’s essential to note that these timelines are subject to change, and users are encouraged to check with their … Read more

What is VoWiFi and how does it work?

VoWiFi, or Voice over Wi-Fi, is a technology that enables the transmission of voice calls over a Wi-Fi network rather than relying solely on cellular networks. It provides users with the ability to make and receive voice calls using a Wi-Fi connection, offering advantages such as improved indoor coverage, potentially lower costs, and enhanced call … Read more

What is VoWiFi in Android?

VoWiFi, or Voice over Wi-Fi, in Android refers to the feature that enables Android devices to make and receive voice calls over a Wi-Fi network. This functionality enhances the voice communication experience by allowing users to utilize Wi-Fi connectivity for calls when cellular network signals are weak or unavailable. Here’s a detailed explanation of VoWiFi … Read more

What is wideband code division multiple access WCDMA?

Wideband Code Division Multiple Access (WCDMA) is a wireless communication technology that forms the foundation of the third-generation (3G) mobile networks, commonly known as UMTS (Universal Mobile Telecommunications System). WCDMA is a spread spectrum technology that enables the transmission of voice and data over a wide frequency band. Here’s a detailed explanation of WCDMA: 1. … Read more

Why is VoWiFi showing?

VoWiFi (Voice over Wi-Fi) appearing on a device indicates that the device is currently using a Wi-Fi network for voice calls rather than relying solely on the cellular network. This feature is designed to enhance voice communication by allowing users to make and receive calls using a Wi-Fi connection. Several reasons contribute to VoWiFi showing … Read more

Why is Wi-Fi called WLAN?

Wi-Fi, which stands for Wireless Fidelity, is often referred to as WLAN, an acronym for Wireless Local Area Network. The term WLAN is used to describe a wireless network that enables devices to communicate and connect to the internet without the need for physical cables. Here’s a detailed explanation of why Wi-Fi is commonly called … Read more