What is power control LTE?
Abstract: Uplink power control is a key radio resource management function. It is typically used to maximize the power of the desired received signals while limiting the generated interference. The LTE power control mechanism constitutes of a closed loop component operating around an open loop point of operation.
What is the difference between open loop and closed loop control?
Control systems are classified into two types like open loop and closed loop. The main difference between open-loop and closed-loop control system is, the required output within the open loop doesn’t depend on the controlled act whereas, in closed-loop, the required output mainly depends on the controlled act.
What is Alpha in LTE?
PL = Estimated Downlink Path Loss. α = Factor to enable or disable Fractional Power Control (also termed as Cell Specific factor)
What is PHR NR?
The UE power headroom report (PHR) control element is used to report the power headroom available in the UE. The PHR is encoded in 6 bits with a reporting range from −23 dB to +40 dB in steps of 1 dB. Positive values indicate the difference between the maximum UE transmit power and current UE transmit power.
What is Uplink power control?
Abstract—Uplink power control is a key radio resource management function. It is typically used to maximize the power of the desired received signals while limiting the generated interference.
Why power control is important in cellular network?
Power control is essentially needed to solve the near-far problem. The main idea to reduce the near-far problem, is to achieve the same power level received by all mobiles to the base station. Each received power must be at least level, so that it allows the link to meet the requirements of the system such that Eb/N0.
How does power control work in LTE?
Before we go into the LTE specific power control, let’s try with our own thought process for this power control issue. In wired communication, the amount of energy (power) being sent from the transmitter reachs the reciever without much degradation.
What are the benefits of switched rack PDUs?
Switched Rack PDUs enable advanced, customizable power control and active monitoring for datacenter and edge environments. Remote outlet level control allows on/off power cycling to remotely reboot equipment and restrict unauthorized use of individual outlets to reduce downtime.
What is APC switch rack power distribution unit?
APC Switched Rack Power Distribution Units (PDUs) enable advanced, user-customizable power control and active monitoring. Remote outlet level controls allow power on/off functionality for power cycling to remotely reboot equipment and restrict unauthorized use of individual outlets.
What are APC rack PDU accessories?
APC Rack PDU Accessories contain bracket kits specifically designed to mount many of the APC vertical Rack Power Distribution Units (PDUs) into third party racks or enclosures as well as a cord retention bracket to help retain power cord connection to mounted Rack PDUs.