Power headroom reporting over sidelinks
AssigneeQUALCOMM Incorporated
InventorsLik Hang Silas Fong, Piyush Gupta, Juan Montojo
Life of this patent
Estimating the term…
Abstract
Aspects of the present disclosure provide techniques that may help enhance power control for sidelink transmissions. According to certain aspects, a method for wireless communications by a first user equipment (UE) generally includes transmitting a power headroom report (PHR) to a second UE, receiving, from the second UE, a transmit power control (TPC) based on the PHR, and transmitting at least a first sidelink transmission to the second UE with transmit power in accordance with the TPC.
Claims20
A method for wireless communications by a first user equipment (UE), comprising:
- transmitting a power headroom report (PHR) to a second UE, wherein the PHR is transmitted via a PHR medium access control (MAC) control element (CE) over a sidelink, wherein transmitting the PHR comprises transmitting at least a first PHR for a first type of sidelink transmission and a second PHR for a second type of sidelink transmission via the PHR MAC CE, wherein the first type of sidelink transmission comprises a physical sidelink shared channel (PSSCH), and wherein the second type of sidelink transmission comprises a physical sidelink feedback channel (PSFCH);
- receiving, from the second UE, a transmit power control (TPC) based on the PHR;
- and
- transmitting at least a first sidelink transmission to the second UE with transmit power in accordance with the TPC.
A method for wireless communications by a second user equipment (UE), comprising:
- receiving a power headroom report (PHR) from a first UE, wherein the PHR is received via a PHR medium access control (MAC) control element (CE) over a sidelink, wherein receiving the PHR comprises receiving at least a first PHR for a first type of sidelink transmission and a second PHR for a second type of sidelink transmission via the PHR MAC CE, wherein the first type of sidelink transmission comprises a physical sidelink shared channel (PSSCH), and wherein the second type of sidelink transmission comprises a physical sidelink feedback channel (PSFCH);
- transmitting, to the first UE, a transmit power control (TPC) based on the PHR;
- and
- receiving at least a first sidelink transmission from the first UE after transmitting the TPC.
A first user equipment (UE) comprising at least one processor and a memory configured to:
- transmit a power headroom report (PHR) to a second UE, wherein the PHR is transmitted via a PHR medium access control (MAC) control element (CE) over a sidelink, wherein transmitting the PHR comprises transmitting at least a first PHR for a first type of sidelink transmission and a second PHR for a second type of sidelink transmission via the PHR MAC CE, wherein the first type of sidelink transmission comprises a physical sidelink shared channel (PSSCH), and wherein the second type of sidelink transmission comprises a physical sidelink feedback channel (PSFCH);
- receive, from the second UE, a transmit power control (TPC) based on the PHR;
- and
- transmit at least a first sidelink transmission to the second UE with transmit power in accordance with the TPC.
A second user equipment (UE) comprising at least one processor and a memory configured to:
- receive a power headroom report (PHR) from a first UE, wherein the PHR is received via a PHR medium access control (MAC) control element (CE) over a sidelink, wherein receiving the PHR comprises receiving at least a first PHR for a first type of sidelink transmission and a second PHR for a second type of sidelink transmission via the PHR MAC CE, wherein the first type of sidelink transmission comprises a physical sidelink shared channel (PSSCH), and wherein the second type of sidelink transmission comprises a physical sidelink feedback channel (PSFCH);
- transmit, to the first UE, a transmit power control (TPC) based on the PHR;
- and
- receive at least a first sidelink transmission from the first UE after transmitting the TPC.
Dependencies are inferred from the claim text.