Patent ID: 11929792
Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. The method of claim 4 further comprising:
updating the channel estimate for the frequency fmod(y+1,2) based on the radio frequency signal (SR(i=y)) received on the frequency fmod(y+1,2) during the third particular time period (TPi=y);
wherein, for a fourth particular time period (TPi=y+1), for each time slot (TSi,j) of the one or more time slots ({TSi,j}j=0,1, . . . , J-1) for the fourth particular time period (TPi=y+1):
the method further comprises generating, using the updated channel estimate for the frequency fmod(y+1,2), a new beamformed radio frequency signal that is modulated with the signature of the particular energy harvester; and
transmitting, during the time slot (TSi,j) of the time period (TPi) on the frequency fmod(i,2), a radio frequency signal ST(i,j) that is modulated with the signature of the particular energy harvester comprises transmitting, during the time slot (TSi,j) of the fourth particular time period (TPi=y+1) on the frequency fmod(y+1,2), the new beamformed radio frequency signal that is modulated with the signature of the particular energy harvester as a radio frequency signal (ST(i=y+1)).