Channels are assigned based on co-spatial constraints in wireless network
using spatial division multiple access. In one example, the invention
includes assigning a co-spatial constraint to each of a plurality of
conventional traffic communications channels of a base station, and
receiving a request from a user terminal to communicate using a traffic
communication channel of the base station. The invention further includes
measuring a quality parameter of the request deriving a co-spatial
constraint for the user terminal, assigning the user terminal co-spatial
constraint to the user terminal, and assigning the user terminal to a
traffic communication channels having a channel co-spatial constraint
that is no less than the user terminal co-spatial constraint and that has
no more assigned radios than permitted by the channel co-spatial
constraint.