Patent ID: 11864158
Assignee: ORANGE
Field: Digital communication (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A method comprising:
allocating transmission resources, implemented by a cellular access network comprising a base station, to at least one transmitter terminal of a set Ω of pairs of terminals of index n that are candidates for direct communication, referred to as D2D terminals, a channel between two D2D terminals in direct communication being referred to as a D2D channel, wherein the allocating comprises:
defining a lookup table of correspondence between different intervals of values of a utility metric and a list of indices ordered from a minimum index to a maximum index defining a ranking of resources available for reporting an indicator of a state of a D2D channel; and
for a current transmission interval:
calculating, by each transmitter terminal of a D2D pair of the set, a value of the utility metric vn(t) assessing an energy efficiency of the D2D communication of the pair,
determining an index of a transmission resource to be used for reporting an indicator by each transmitter terminal of a D2D pair of the set by comparing its value of the utility metric vn(t) with the lookup table,
reporting, by each transmitter terminal of a D2D pair of the set, an indicator via the resource of determined index,
and determining, from said D2D transmitter terminals, a first terminal (n*) whose resource for reporting the indicator has the minimum order index, this first terminal being the D2D terminal authorized to transmit during the current transmission interval.