▁with ▁the ▁' W ' ▁appearing ▁in ▁the ▁top - right ▁corner ▁of ▁a ▁light ▁blue ▁box ▁that ▁has ▁a ▁solid ▁blue ▁line ▁above ▁it . ▁ ▁One ▁of ▁the ▁present ers ▁at ▁the ▁inaug ural ▁S IG ▁event ▁in ▁September ▁ 2 0 1 1 ▁stated ▁j ok ingly , ▁in ▁reference ▁to ▁cell ular ▁communication ▁standards , ▁" Weight less ▁is ▁not ▁ 1 G , ▁ 2 G , ▁ 3 G ▁or ▁even ▁ 4 G ▁– ▁it ▁is ▁Z ER O ▁G ". ▁ ▁Im plementation ▁▁ ▁We ight less - N ▁is ▁designed ▁around ▁a ▁differential ▁binary ▁phase ▁shift ▁key ing ▁( DB PS K ) ▁digital ▁mod ulation ▁scheme ▁to ▁transmit ▁within ▁narrow ▁frequency ▁bands ▁using ▁a ▁frequency ▁ho pping ▁algorithm ▁for ▁inter ference ▁mit ig ation ▁and ▁en hanced ▁security . ▁It ▁provides ▁for ▁encryption ▁and ▁implicit ▁authentication ▁using ▁a ▁shared ▁secret ▁key ▁regime ▁to ▁encode ▁transm itted ▁information ▁via ▁a ▁ 1 2 8 ▁bit ▁A ES ▁algorithm . ▁The ▁technology ▁supports ▁mob ility ▁with ▁the ▁network ▁automatically ▁routing ▁terminal ▁messages ▁to ▁the ▁correct ▁destination . ▁Multiple ▁networks , ▁typically ▁operated ▁by ▁different ▁companies , ▁are ▁enabled ▁and ▁can ▁be ▁co - located . ▁Each ▁base ▁station ▁queries ▁a ▁central ▁database ▁to ▁determine ▁which ▁network ▁the ▁terminal ▁is ▁registered ▁to ▁in ▁order ▁to ▁decode ▁and ▁route ▁data ▁accordingly . ▁ ▁We ight less - W ▁uses ▁Time - div ision ▁du plex ▁operation ▁with ▁frequency ▁ho pping ▁and ▁variable ▁spread ing ▁factors ▁in ▁an