The platform also dynamically chooses the most appropriate data modulation scheme, from BPSK to 64QAM
based on the received signal quality, to provide the maximum possible throughput at all times.
The potentially high interference level makes higher order modulation schemes such as 64QAM
By fixing transistor size and matching circuit, the new transmission amp achieves 64QAM
- an efficiency of 1.
Axis Network Technology (AxisNT), a supplier of radio remote heads, software defined radios and high efficiency power amplifiers, has introduced a triple mode power amplifier module and IP linearisation solution, offering a 45% final stage efficiency for UMTS ETSI compliant 64QAM
systems at 2.
6598 MODE 4 5 6 Modulation 16QAM 64QAM 64QAM
RS code (80, 72, 4) (108, 96, 6) (102, 108, 6) CC Code Rate 5/6 3/4 5/6 Coding rate 3/4 2/3 5/6 [R.
By adopting 64QAM
(Quadrature Amplitude Modulation) and MIMO (Multiple Input Multiple Output) technology with 2T2R (two transmitters and two receivers) capabilities, Huawei's latest LTE eNodeB is able to maximize the use of the ultra-wide bandwidth of LTE networks.
11a/g features are supported including data scrambling, forward error-correction via convolutional encoding at rates from 1/2 to 3/4, sub-channel coding of BPSK, QPSK, 16QAM or 64QAM
, both short- and long-training sequences, pilot insertion, and the IFFT/FFT required to convert to/from time-domain RF I/Q signals.
5 3072 3/4 14 4608 64QAM
1/2 16 4608 2/3 18 6144 3/4 20 6912 Table 2.
Described as a programmable wideband, secure, networked radio, the SeaLancet can handle data, imagery and streaming video, accommodating a variety of waveforms offering different data rates from six Mbps with a Binary Phase Shift Keying (BPSK) waveform to the 64QAM
(Quadrature Amplitude Modulation) waveform with its link burst rate of 54 Mbps.
18um CMOS process, that delivers 26dBm (400mW) linear power with 3% EVM for 64QAM
OFMD at 5V supply voltage, with excellent power added efficiency (PAE) surpassing that of competitor designs using GaAs or SiGe processes.
The Agilent N7600B Signal Studio software provides a flexible, application-specific solution for generating arbitrary waveform signals that comply with the 3GPP HSPA+ PHY layer specification, including 16QAM, 64QAM
, 4PAM modulation, uplink sub-tests, and Test Model 6 predefined setups.
5MHz, 5MHz, 7MHz, 10MHz, and 20MHz, along with 64QAM
, 16QAM, and QPSK adaptive modulation schemes.