PROTECTION FROM IMPLICIT SPATIAL REPETITION Russian patent published in 2020 - IPC H04W12/10 H04W4/29 

FIELD: electrical communication engineering.

SUBSTANCE: invention relates to cellular communication. Terminal device acquires location information in the grid relating to the cell of the predetermined grid, calculates the message integrity code based on the arrangement information in the grid and transmits a service discovery message based on spatial proximity, which includes a computed message integrity code and does not include location information in the mesh. Second terminal device receives service discovery message based on spatial proximity, calculates at least one message integrity code based on location information in grid, determines whether the computed message integrity code matches the message integrity code in the received detection message and performs actions on the received service discovery message based on spatial proximity, only if the computed message integrity code matches the message integrity code in the received detection message.

EFFECT: technical result is providing protection from implicit spatial repetition.

21 cl, 16 dwg