Patent ID: 7027824

Claim:
A method of operating a device in a wireless network to receive broadcast messages as well as point to point communications, the method comprising: waking up the device at a preprogrammed time; upon waking up at the preprogrammed time, receiving a first message that includes a broadcast indicator code that identifies a broadcast category or a specific broadcast; comparing the first broadcast indicator code to one or more stored codes indicative of broadcasts subscribed to; and in a first case that it is determined that the broadcast indicator code does not match any of the one or more stored codes going into sleep mode; and in a second case that it is determined that the broadcast indicator code matches one of the one or more stored codes, operating the device to receive the broadcast; and in the second case, prior to operating the device to receive the at least one broadcast; receiving a second message indicative of a subcategory of the broadcast; and comparing the subcategory of the broadcast to information indicative of subcategories to which the device is subscribed that is stored in the device, wherein operating the device to receive the broadcast is contingent upon a match being found between subcategory information received in the second message, and subcategory information stored in the device.