sierra wireless lte

As an evolution after 3G-4G, do you know its technical characteristics? As one of the 4G standard record filing systems, wireless TD-LTE-Advanced adopts the multi-access method, frame structure similar to TD, and wireless MIMO technology. The following is a detailed introduction. Features of wireless TD-

methods. The former is based on the gsoc module [piro2011] and works based on each RB. This model can be activated using the NS3 attribute system: Config::SetDefault ("ns3::LteAmc::AmcModel", EnumValue (LteAmc::PiroEW2010));At the same time, the solution based on the physical error model can be controlled using the following code: Config::SetDefault ("ns3::LteAmc::AmcModel", EnumValue (LteAmc::MiErrorModel)); Finally, the efficiency required by the piroew2010 AMC module can be adjusted by the B

ICIC:Inter Cell interference coordination, inter-cell interference coordination technology. For cellular network cell throughput is the key limit of the target is the cell disturbance, especially the cell edge users. Because the LTE system supports a frequency multiplexing factor of 1, the meticulous management of inter-cell interference is particularly important.The Icic design guideline is to increase the throughput of edge users without decreasing

was opening quickly, which led us to the station, but too late.In the case of slow channel changes, such as indoor or nomadic access services in large cities, it is necessary to use the closed-loop MIMO to further improve the performance of the shampoo.Closed-loop system is the receiving end of the information channel feedback to the transmitter, and then the transmission of data encoding, beamforming or antenna selection and other operations.The feedback method is divided into full feedback or

Key LTE technologies for wireless communication network learning ICIC (20141220), lteicic ICIC: Inter Cell Interference Coordination, Inter-Cell Interference Coordination technology. Cell interference is a key indicator that limits cell network cell throughput, especially for cell edge users. Because the Frequency Multiplexing factor supported by the LTE system i

In view of the previous day to write a relevant knowledge point, and occasionally due to work reasons, did not follow up every day, so decided to write today another on the key technology of LTE knowledge, but also the last son.SON: (self organized network) ad-organized networks ;Contains three aspects: self-configuring, ANR (Automatic neighborhood optimization), MRO (switching self-optimizing);Automatic configuration is the base station cell equipmen

, frequency of the three three-dimensional parameter structure to see OFDMA.The effective wave of orthogonal post data, transverse is frequency, sub-carrier interval 15K, longitudinal axis is time, 1ms Dispatch once, the CP is inserted between each layer wave to reduce ISI (inter-symbol interference).For the Fourier transform those algorithms, do not go into the deep, I believe that you also have a certain understanding of OFDM,OFDMA, tomorrow we continue to explore other key technologies.Taking

In LTEAs a special wireless bearer (RB), Radio bearers-signaling is only used to transmit RRC and NAS messages. In Protocol 36.331, The srbs transmission channel is defined: -- Srb0 is used to transmit RRC messages and transmitted on the Logical Channel ccch. -- Srb1 is used to transmit RRC messages (may contain piggybackedNAS messages), which has a higher priority than srb2 before the establishment of srb2. Transmission over the Logical Channel dcch.