How to start session globally?

My suggestion: don't worry about loading the session globally. First - that means that if the session isn't needed it isn't loaded which can be good for performance and some security things, IIRC. Second - whenever you first call the service, or use the the service() helper method, the session will be automatically initialized and ready for use.

Code:

// These all ensure session is initialized:
$session = \Config\Services::Session();
session('key');
session()->get('key');
session()->set('key', $value);

In CI3 the session was held globally.
I have started the session in BaseController and assigned the values to the respective one from one controller, but when evaluating it in another controller the values do not exist.

BaseController:

PHP Code:

$this->sesion  = \Config\Services::session(); 


Controller where I assign the values to the logged in user session:

PHP Code:

//agrego los datos del asuario al array 
$datosEnSesion = array(
 'usuario'=>$usuarioEncontrado->usuario,
 'usuario_nombre'=>$usuarioEncontrado->usuario_nombre,
 'usuario_estado'=>$usuarioEncontrado->usuario_estado,
 'chequear'=>true,
 'MenuUsuarioLogueado'=>$MenuUsuarioLogueado,
 'ids_modulo_opciones'=>$ids_modulo_opciones
 );
 
//agrego los datos a una sesion
$this->sesion->set($datosEnSesion); 


If I print those values on the current controller, it works correctly, but when evaluating them on another controller, it no longer exists.
Other controller:

PHP Code:

public function __construct(){
 //parent::__construct();
 //establezco la zona horario par El Salvador
 date_default_timezone_set('America/El_Salvador');
 //comprobamos si el usuario está logueado

 $this->sesion = session();
 if($this->sesion->chequear != true)
 {
 //si no estoy logueado que me envie a index
 return redirect()->to(base_url());
 }
 
 //cargo los modelos anecestiar
 
 } 


Any idea why that happens?