QoS scheduler on MX80

Hello forum guys, 

I would like to implement qos scheduler but I am not very familiar with junos in regards qos config. What I would like to do, it is bacis like this config I would on cisco: 

1.classify packets

class-map match-any dscp_EF
match dscp af41 af42 cs7
class-map match-any dscp_AF
match dscp af31 af32 af43
class-map match-any dscp_BE
match dscp default af11 af13 af21 af22 af23 af33

2. create priority que for sensitive trafic and assign bw for it

policy-map LTE_QoS
 class dscp_EF
  priority level 1 percent 20
 class dscp_AF
  priority level 2 percent 20
 class dscp_BE

3.assign policy to interface in output direction

interface GigabitEthernet1/0/1
 service-policy output LTE_QoS

anybody could help me to convert that to junos?