Patent ID: 8588788

Claim:
A wireless communications apparatus, comprising: a memory that stores data relating to a position of the wireless communications apparatus, a first registration radius corresponding to a first coverage area of a first access point, and a second registration radius corresponding to a second coverage area of the first access point and at least a second access point; and a processor configured to: determine whether the position of the wireless communications apparatus has moved outside the first coverage area; register the wireless communications apparatus and switch a registration radius used by the wireless communications apparatus from the first registration radius to the second registration radius upon a positive determination; receive data from an access gateway through one of the first access point and the second access point; and switch the registration radius used by the wireless communications apparatus from the second registration radius to an updated first registration radius corresponding to the access point through which the data was received; wherein the wireless communications apparatus is configured to receive the data buffered by an entity selected based at least in part upon a change in the registration radius used by the wireless communications apparatus.