What is 3G? or WCDMA?
3G is new upgraded cdma technology, in simple word its Wide band Code Devision Multiple Access Technology (WCDMA). This is first technology in which video call possible means voice and…
How Wireless Narrowband Local-Loop Systems in Wimax ?
Naturally, the first application for which a wireless alternative was developed and deployed was voice telephony. These systems, called wireless local-loop (WLL), were quite successful in developing countries such as…
How Interference Diversity in GSM?
Interference is dependent on time, frequency and mobile location. Without frequency hopping, some cell planning margins must be incorporated so that sufficient service quality can still be provided in an…
High Inventory and Low Burn Rate Stalls Femtocell Market Ending 2012
ABI Research’s latest forecasts for femtocells estimate largely flat volume shipments in 2012 relative to 2011. The shipments in 2012 are expected to contain 2.44 million units, similar to the…
What is the 3GPP?
The 3rd Generation Partnership Project (3GPP) is a collaboration between groups of telecommunication associations, to make a globally applicable third generation 3G mobile phone system specification within the scope of…
BCH ,CBCH and CCCH works in GSM
Broadcast Channels (BCH) Frequency correction channel (FCCH) the “lighthouse” of a BTS Synchronization channel (SCH) PLMN/base identifier of a BTS plus synchronization information (frame number) Broadcast control channel (BCCH) to…
Basic Function of Uplink & Downlink Transport Channel in LTE
Basic Function of Uplink & Downlink Transport Channel in LTE Downlink Transport Channel Broadcast Channel (BCH) A fixed TF Used for transmission of parts of BCCH, so called MIB Paging…
Which types of information carries By Logical Channel in LTE?
Below types of information carries By Logical Channel in LTE Control Channels Broadcast Control Channel (BCCH) :used for transmission of system information from the network to all UEs in a…
EPS Bearer Terminology in LTE
EPS Bearer Terminology in LTE Quality of service GBR bearer: Guaranteed bit rate Non-GBR bearer: No guaranteed bit rate Establishment time Default bearer Established when UE connects to PDN…
Inter-cell interference coordination (ICIC) in LTE
Inter-cell interference coordination (ICIC) in LTE To aid downlink ICIC Relative narrowband transmission-power indicator A cell can provide this information to neighboring cells, indicating the part of the bandwidth where…
BENEFITS OF MULTI-ANTENNA TECHNIQUES IN LTE
BENEFITS OF MULTI-ANTENNA TECHNIQUES IN LTE The availability of multiple antennas at the transmitter and/or the receiver can be utilized in different ways to achieve different aims: Multiple antennas at…
Verizon & T-Mobile Going to Swap Radio Spectrum
T-Mobile USA has announced a deal to swap blocks of radio spectrum with Verizon Wireless in 218 markets across the country. T-Mobile said the purchase will improve its spectrum position…