US 9,807,709 B2 · Device to-device (D2D) cross link power control

Abstract

Device-to-device (D2D) cross link power control systems and methods may be disclosed. For example, a device such as a UE or WTRU may determine whether it may have simultaneous transmissions where at least one of the transmissions may include a cross link transmission. The device may further determine whether a total transmit power of the simultaneous transmissions may exceed a maximum transmit power of the device. If the device may have simultaneous transmissions and such transmissions may exceed the maximum transmit power, the device may reallocate power based on a priority or priority setting. The device may further determine a maximum cross link power, a maximum device power, and a cross link transmit power level such that the device may further control the power for transmissions based thereon.

Claims18

Dependent claims

A method for controlling a cross link transmit power level on a wireless transmit/receive unit (WTRU), the method comprising:

receiving an explicit indication from a network entity;
selecting a cross link transmit power control (TPC) formula for a transmission from the WTRU to another WTRU, wherein the cross link TPC formula is selected from a plurality of cross link TPC formulas based at least on the received explicit indication;
determining a cross link transmit power level in accordance with at least the selected cross link TPC formula;
and
sending the transmission to the other WTRU using the determined cross link transmit power level, wherein a first cross link TPC formula is semi-statically configured and a second cross link TPC formula is calculated based on at least a path loss.

2 more elements

Dependencies are inferred from the claim text.

Device to-device (D2D) cross link power control

Life of this patent

Device to-device (D2D) cross link power control

Life of this patent

Abstract

Claims18