Francis Group, LLC Architecture and Protocol Support for RRM adaptation (LA), which selects transport format-that is, modulation and coding scheme (MCS)-and allocates power to the assigned [time, frequency, antenna port] resource. Primarily, the scheduler in the eNode B executes the preceding resource assignment function, although the antenna configuration can be seen as a somewhat separated function from the generic scheduler operation. The scheduler selects the time-frequency resource to assign to a particular UE based on the chan- nel conditions and the QoS needs of that UE. Then the LA function selects MCS and allocates power to the selected time-frequency resources. More information on the scheduler and on the LA function is presented in Sections 4.2.2 and 4.2.3. The antenna configuration, such as the MIMO mode and its corresponding parameters (e.g., the precoding matrix), can be controlled basically separately from the time- frequency assignments of the scheduler, although the two operations are not totally independent. More details on the antenna configuration control are discussed in Section 4.2.7. In an ideal case, the assignment of [time, frequency, antenna port] resources and the allocation of MCS and power setting would need to be done in a network-wide manner on a global knowledge basis in order to obtain the network-wide optimum assignment. However, for obvious reasons, this is infeasible in practical conditions because such a solution would require a global "super scheduler" function operat- ing based on global information. Therefore, in practice, the resource assignment is performed by distributed entities operating on a cell level in the individual eNode Bs. However, this does not preclude some coordination between the distributed entities in neighbor eNode Bs-an important aspect of the RRM architecture that needs to be considered in LTE. Such neighbor eNode B coordination can be useful in the case of various RRM functions such as intercell interference coordination (ICIC). These aspects will be 