US 12,457,150 B2
Wireless communication device
Gang Zou, Lund (SE); and Andreas Kristensson, Södra Sandby (SE)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Filed by Telefonaktiebolaget LM Ericsson (PUBL), Stockholm (SE)
Filed on May 6, 2024, as Appl. No. 18/655,507.
Application 18/655,507 is a continuation of application No. 17/775,127, granted, now 11,979,271, previously published as PCT/EP2019/080778, filed on Nov. 11, 2019.
Prior Publication US 2024/0297817 A1, Sep. 5, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 41/06 (2022.01); G16Y 40/35 (2020.01); G16Y 40/40 (2020.01); H04L 41/0663 (2022.01)
CPC H04L 41/0663 (2013.01) [G16Y 40/35 (2020.01); G16Y 40/40 (2020.01)] 9 Claims
OG exemplary drawing
 
1. A wireless communication device, comprising:
an antenna;
a switch;
a radio frequency transceiver, for generating signals for transmission through the antenna, the radio frequency transceiver being connectable to the antenna through the switch;
a backscattering block, for generating reflected signals for transmission through the antenna in response to received RF signals, the backscattering block being connectable to the antenna through the switch; and
a battery,
wherein the switch is connected to the antenna in a way that one of the radio frequency transceiver or the backscattering block is connected to the antenna at a given time, and
wherein the switch is controlled by an output voltage of the battery, such that the radio frequency transceiver is connected to the antenna through the switch when the output voltage of the battery exceeds a threshold voltage, and the backscattering block is connected to the antenna through the switch when the output voltage of the battery is below the threshold voltage.