How MAC Layer work’s in Wimax?
The MAC layer is oriented to the connections. Each connection corresponds to a service flow. The service flow defines the QoS parameters of PDU transmitted over the connection. The design…
How Sub-Carrier Allocation in Wimax?
Sub-Carrier Allocation Mode 1 DL PUSC – Downlink partial Usage Sub-Channels The downlink PUSC replacement zone is unique, that must exist in the frame structure specified by the protocols. DL…
Apple Fined by Australian Court for Misleading 4G
Following action taken by the Australian Competition and Consumer Commission, the Federal Court has ordered Apple to pay AU$2.25 million in civil pecuniary penalties for misleading advertising in relation to…
LTE Downlink & Uplink Physical Channel
LTE Downlink Physical Channel Physical Downlink Shared Channel ( PDSCH) This channel is used for unicastand paging functions. Carries the DL-SCH and PCH. QPSK,16-QAM,and 64-QAM Modulation. Physical Downlink Control Channel…
How Many LTE Downlink Transport Channel ? How its Work?
There are major four channel in LTE Downlink trasport channel. which list below with its work in short. Paging Channel ( PCH) Supports UE discontinuous reception (DRX) to enable UE…
ZTE Launches First LTE BeamHop AAS Solution
ZTE has launched what it says is the industry’s first LTE BeamHop Solution and demonstrated the LTE A8808 Active Antenna System (AAS) product based on this technology. Based on…
Huawei Completes First EHRPD Optimized Handoff Test
Huawei today announced the successful completion of a commercial test for LTE to CDMA evolved, High-Rate Packet Data (eHRPD) optimized handoff. eHRPD means the evolution and improvement of the original…
Packet-Switched Radio Interface in LTE
LTE has been designed as a completely packet-oriented multi service system, without the reliance on circuit-switched connection-oriented protocols prevalent in its predecessors. In LTE, this philosophy is applied across all…
What is inside SIM Card (Subscriber Identity Module) ?
Subscriber Identity Module (SIM) The SIM as mentioned previously is a “smart card” which plugs into the ME and contains information about the MS subscriber hence the name Subscriber Identity…
How To Set Pilot Search Window Sizes in CDMA ?
When the handset first powers up, it does an exhaustive search for the best pilot. No windows are used in this process. On the paging channel, the handset learns the…
Advantages of CDMA Handoff
It is “soft”, meaning that communication is not interrupted by the handoff. This is sometimes called “make before break.” This means fewer dropped calls for users and higher customer satisfaction…
Handoff Candidate Classification in CDMA
The mobile station continuously searches for Pilots to detect the presence of other CDMA signals that have the same carrier frequency and measures the strength (received Ec/Nt) of the pilots. …