Method and apparatus for minimizing traffic in a two way wireless messaging system

A method of targeting messages to a subscriber unit in a nonreal time messaging system having a controller, comprising the steps at a subscriber unit of:

• maintaining a synchronized database of locations where the subscriber unit is likely to be, wherein the locations are synchronized between a memory at the controller and a memory at the subscriber unit;
• monitoring base transmitter transmissions for correlation with a predetermined base transmission area stored at the memory location at the subscriber unit;
• and
• transmitting a subscriber unit's location information to the controller if the subscriber unit detects that the base transmitter transmissions do not correlate with the predetermined base transmission area stored in memory as well as directing the controller to send subsequent transmissions to base transmitters corresponding to the subscriber unit's location information, otherwise receiving messages without a preceding transmission of the subscriber unit's location information to the controller.

A non-real time messaging system for targeting messages to a subscriber unit, comprises

• a controller that assumes the subscriber unit is within a receiving range of a predetermined base transmission area for trinsmnission of messages to the subscriber unit and detects when the subscriber unit is not within the receiving range of a predetermined base transmission area, wherein the controller directs transmissions of messages to an identified area if the subscriber unit identifies the identified area and otherwise transmits to the predetermined base transmission area;
• a memory location at the subscriber unit and a memory location at the controller both containing a synchronized database of locations where the subscriber unit is likely to be;
• and
• a plurality of base receivers coupled to the controller for receiving transmissions from the subscriber units and allowing the controller to detect when the subscriber unit is not within the receiving range of a predetermined base transmission area.

A subscriber unit for receiving non-real time targeted messages in a two way messaging system having a plurality of base transmitters, comprises:

• a selective call receiver coupled to a decoder and a controller;
• a selective call transmitter coupled to the controller and an encoder;
• and
• a memory coupled to the controller containing a profile of a select portion of the plurality of base receivers that the subscriber unit should be within the receiving range of, wherein the subscriber unit does nothing if the controller determines that the subscriber unit is within the profile and transmits update information to the two-way messaging system if the subscriber unit is outside the profile, said profile synchronized with a further database included in said two-way messaging system.