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 the promotion of its “iPad with WiFi + 4G” which has been found to have contravened the Australian Consumer Law. Apple promoted the “iPad with … Read more
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 (PCSCH) Informs the UE about the resource allocation of PCH and DL-SCH, and Hybrid ARQ information related to DL-SCH. Carries … Read more
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 power saving. Broadcasts in the entire coverage area of the cell. Mapped to physical resources which can be used dynamically also for traffic/other control channels. Broadcast … Read more
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 the LTE BeamHop Solution, the A8808 product consists of both active and passive antennae. The passive part replaces operators’ existing 2G and 3G antennae, while … Read more
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 CDMA EV-DO network. eHRPD acts as a bridge from CDMA to LTE by ensuring service continuity while protecting existing operator investment. In the initial … Read more
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 the layers of the protocol stack. The route towards fast packet scheduling over the radio interface was already opened by HSDPA, which allowed the transmission … Read more
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 Module. The SIM contains several pieces of information: International Mobile Subscriber Identity (IMSI)This number identifies the MS subscriber. It is only transmitted over the air … Read more
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 window sizes SRCH_WIN_A, N, R and uses them when looking for neighbors both in idle mode and during calls. When a strong neighbor is requested … Read more
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 for operators. The handoff is not abrupt, but rather it is a prolonged call state during which there is communication via … Read more
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. When the mobile station detects a Pilot of sufficient strength that is not associated with the serving cell/sector, it sends a message to the serving … Read more