I am sorry, what is R301S? May be you mean T301S? This are outdoor with 30x120 degree antennas. You can mix them with any other Ruckus AP in same system, but designing the coverage you have to take into account a lot of factors (how big is area, how many users is there, where you can mount APs, if there are obstacles, helping to divide open area into more separated coverage areas. Usually with high density you want all APs with directional antennas. If number of users isn't that big, just a few hundreds, you can use omnidirectional APs, such as R700, if you can find favorable location.