Patent ID: 8532037

Claim:
A method for transmitting mobility information to support handover and roaming in a Convergence of Broadcasting and Mobile Services (CBMS) system, the method comprising the steps of: setting mobility information comprising information elements for indicating a handover/roaming type according to whether or not support of an interactive network is available for handover/roaming; inserting the mobility information into at least one of an Electronic Service Guide (ESG) regarding broadcasting services, a notification message indicating the handover/roaming type, and a handover signaling message so that the mobility information is transmitted to at least one terminal; and conducting handover or roaming of the terminal according to the mobility information, wherein the handover/roaming type indicates an information element regarding if the interactive network is available for handover/roaming, an information element regarding if signaling information or service data can be delivered over the interactive network, and an information element regarding which of the network and the terminal makes a handover/roaming decision.