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Long Term Evolution (LTE) is the project name of a new air interface for wireless access being developed by the Third Generation Partnership Project (3GPP). LTE is the evolution of 3GPP's Universal Mobile Telecommunication System (UMTS) towards an all-IP network. The LTE specifications provide a framework for increasing capacity, improving spectrum efficiency, improving cell-edge performance, and reducing latency. Many of the targets for LTE are similar to those for the continuing development of High Speed Packet Access (HSPA) - generally known as HSPA+ - although LTE has some specific additional capabilities such as flexible channel bandwidths and the advantages of Orthogonal Frequency Division Multiple Access (OFDMA). LTE is being developed in Releases 8 and 9 of the 3GPP specifications.
To meet the demand for ever-higher data rates, LTE offers a 100 Mbps download rate and 50 Mbps upload rate for every 20 MHz of spectrum. Support is intended for even higher rates, to 326.4 Mbps in the downlink, using multiple antenna configurations. To allow the use of both new and existing frequency bands, LTE provides scalable bandwidth from 1.4 MHz to 20 MHz in both the downlink and the uplink. LTE is optimized for low speeds (0 - 15 km/h) but will still provide high performance to 120 km/h with support for mobility maintained up to 350 km/h. 3GPP are considering support for even higher speeds up to 500 km/h.
Downlink Peak Data Rates
(64QAM)
Antenna configuration
SISO
2x2 MIMO
4x4 MIMO
Peak data rate
Mbps
100
172.8
326.4
Uplink Peak Data Rates
(single antenna)
Modulation depth
QPSK
16QAM
64QAM
Peak data rate
Mbps
50
57.6
86.4
Figure 1: Peak data rate targets for LTE1
What else can I help you with?
A wave is one in which the voltage rise at a constant rate with respect to time?
A: peak B: sine C: square D: linear
What is peak to peak?
Peak to Peak is the most positive peak to the negative peak value. Or find any peak value and multiply by 2.
Are peak-to-peak and rms voltage measurements the same?
No, the peak-to-peak voltage is 2sqrt(2) times as much as the rms for a pure sine-wave.
What is the effective value of 200 volts peak-to-peak?
200 volts peak-to-peak is 100 volts peak, which is 70.7 volts rms (standing for root-mean-square) also called "effective". This 70.7 volts is the DC voltage with the same heating power as the peak-to-peak. The relationship is: rms (aka RMS) equals peak-to-peak divided by 2, then divided again by square-root of 2 (1.414). The division by 2 gets us from peak-to-peak to just peak. The next division takes us to rms. If you get an AC voltrage with no description, for exmple 120 volts AC, it is RMS (effective). The USA AC standard supply voltage is 120 (also called 117) volts RMS. The USA peak is 117 x 1.414 (square root of 2) = 165 volts peak, = 330 volts peak-to-peak.
How to calculate the peak-to-peak value of a signal?
A: AC or our line voltage is sinusoidal in nature it goes up to a positive peak returns to zero and proceed to the negative peak. 120V AC is actually swinging from peak to peak. It is 120 volts but the peak is the 120 v times 1.41 or 169.2 volts and since it also go negative then the peak to peak 120 volts times 2.82 or 338.40 volts or twice the peak voltage
What is the peak rate of a phone company is 22 per minute and the off-peak rate is 11 per minute Find the savings for a 16 minute phone call if it was made during off-peak time as opposed to peak Tim?
$ 1.76
When is the rate of a child's development at its peak?
0-2
When is the rate of child development at its peak?
0-2
Coast station 711 peak and off peak call rate?
contact sales@station711.com
What was the peak customs duty rate for the year 2010?
10%
What is quasi peak?
Most radiated and conducted limits in electromagnetic compatibility (EMC) testing are based on quasi-peak detection mode. Quasi-peak detectors weigh signals according to their repetition rate, which is a way of measuring their "annoyance factor." They do this by having a charge rate much faster than the discharge rate. Therefore as the repetition rate increases, the quasi-peak detector does not have enough time to discharge as much, resulting in a higher voltage output (response on spectrum analyzer). For continuous wave (CW) signals, the peak and the quasi-peak response are the same. The quasi-peak detector also responds to different amplitude signals in a linear fashion. High amplitude low repetition rate signals could produce the same output as low amplitude high repetition rate signal. Quasi-peak detector readings will always be less than or equal to the peak detection. Because quasi-peak readings are much slower, (by 2 or 3 orders of magnitude compared with peak) it is very common to scan initially with the peak detection first, and then if this is marginal or fails, switch and run the quasi- peak measurement against the limits.
Which RAM module has the highest peak transfer rate?
Ddr3-1600
What is peeks?
Peak oil is the point in time when the maximum rate of global petroleum extraction is reached, after which the rate of production enters terminal decline.
How much is the nightly rate at the Comfort Inn in Central Park West?
The Comfort Inn located in Central Park West has a nightly rate of $114.00. This is during the peak vacation season, so it might be less during the off peak season.
What is peek oil?
Peak oil is the point in time when the maximum rate of global petroleum extraction is reached, after which the rate of production enters terminal decline.
In what year did unemployment rate reach its peak?
Unemployment in the United States peaked at 25% in 1936.
What two rate schedules are maintained by most cities for electrical service?
Most cities maintain flat-rate and time-of-use rate schedules for electrical service. Flat-rate schedules charge a consistent rate per unit of electricity consumed, while time-of-use schedules vary the rate based on the time of day electricity is used, with higher rates during peak hours and lower rates during off-peak hours.
