Optimal open loop power control for random access channel

A telecommunications system comprising:

• a user terminal programmed to receive a forward link signal and transmit a return link signal at an optimized return link signal transmission strength;
• and
• a network device programmed to receive the return link signal from the user terminal, determine an initial offset associated with the return link signal, and transmit the initial offset and an original forward pilot to total transmit power ratio over a broadcast channel to the user terminal,
• wherein the user terminal is programmed to determine the optimized return link signal transmission strength based at least in part on the initial offset and the original forward pilot to total transmit power ratio transmitted by the network device, and
• wherein the initial offset is calculated by the network device based on a configured target of a return link signal to interference ratio, a total forward transmit power, a measurement of a return link interference, and a received return link signal to interference ratio.

A user terminal comprising a processing device and a memory storage device, wherein the user terminal is programmed to:

• receive a forward link signal from at least one of a plurality of network devices and transmit a return link signal to the plurality of network devices,
• select one of the plurality of network devices,
• determine an optimized return link transmit power based at least in part on a total received mean power of the forward link signal, a calculated forward interference correction, an initial offset provided by the network, and a gain adjustment,
• compensate for forward link interference when transmitting the return link signal based on the calculated forward interference correction, wherein compensating for forward link interference includes measuring a received signal-to-interference plus noise ratio of a forward link pilot signal and calculating the forward interference correction using a difference between an original transmit pilot power and a total transmit power ratio and the received signal-to-interference plus noise ratio, and
• transmit the return link signal to the selected one of the plurality of network devices at the optimized return link signal transmission strength.

A user terminal comprising a processing device and a memory storage device, wherein the user terminal is programmed to:

• receive a forward link signal from at least one of a plurality of network devices and transmit a return link signal to the plurality of network devices,
• determine a minimum needed return link signal transmission strength for at least one of the plurality of network devices,
• select the smallest optimized return link signal transmission power for transmitting the return link signal over a random access channel, and
• select one of the plurality of network devices,
• transmit the return link signal to the selected one of the plurality of network devices at an optimized return link signal transmission strength.

A user terminal comprising a processing device and a memory storage device, wherein the user terminal is programmed to:

• receive a forward link signal from at least one of a plurality of network devices and transmit a return link signal to the plurality of network devices,
• select one of the plurality of network devices,
• determine a link gain associated with the return link signal and the forward link signal,
• determine a link gain difference based on a difference between the link gains associated with the return link signal and the forward link signal, and
• transmit the return link signal to the selected one of the plurality of network devices at an optimized return link signal transmission strength.