Patent ID: 11917539
Assignee: SONY GROUP CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 9:
10. The method of claim 1, wherein
each of a plurality of consecutive second signals transmitted by the infrastructure equipment comprises a respective predetermined characteristic, the predetermined characteristics of any two consecutively transmitted second signals being different to each other and the predetermined characteristics being repeated for the plurality of consecutively transmitted second signals in a predetermined pattern; and
the characteristic associated with the plurality of second signals is the repeated predetermined pattern of the predetermined characteristics for a plurality of consecutive second signals received by the terminal device; and
the predetermined condition is that there is a discrepancy between a predetermined characteristic of one of the plurality of consecutive second signals received by the terminal device and an expected characteristic of the one of the plurality of consecutive second signals received by the terminal device in accordance with the repeated predetermined pattern.