PERFORMING UPDATES TO MULTIPLE INFORMATION SERVICE TOPICS USING A SINGLE COMMAND

摘要

A selective call device (130) has a receiver (204) for receiving a selective call signal including an address (312). An address correlator (214) coupled to a decoder (212) determines that the selective call signal is directed thereto and determines whether the selective call signal includes an update command (400, 500) embedded within a message portion (316) of a standard transport-layer communication protocol. The update command includes a topic number (407, 508) used as a sub-address indicative of a subscribed information service topic, uptade data for the subscribed information, and instructions for updating selected portions of at least one previously received information service topic stored in a message memory (226) as a sub-message. The update command includes an identifier (405, 505) of a format of the update data. A single update command can provide update data for more than one portion of more than one sub-message, or topic. More than one update command can be embedded within one message portion.