Adaptive monitoring method for update detection in a mobile broadcast network

摘要

Information included within metadata broadcast within an overhead flow of a mobile broadcast network enables receiver devices to determine when metadata updates will occur. The mobile broadcast network can include within metadata messages information related to a time for the next metadata update. Using this information, receiver devices can determine when the next metadata update will occur and de-energize the receiver until that time. Enabling mobile devices to remain de-energized until the next metadata update improves their power efficiency. Synchronizing mobile devices to access the overhead flow for updated metadata reduces the content delivery latency that the system must accommodate, thereby improving system flexibility and bandwidth efficiency. Specify the time of a next metadata update enables the broadcast system to change the rate and timing at which metadata updates are performed.

主权项

1. A method for updating metadata concerning broadcast content in a mobile broadcast system, comprising:
determining a time for a next update of metadata containing information about upcoming broadcast content within a content flow portion of a mobile broadcast transmission; including information regarding the determined time for the next update of the metadata within a current metadata message within an overhead portion of a first mobile broadcast transmission; and broadcasting an updated metadata message within an overhead portion of a subsequent mobile broadcast transmission when a current time equals the determined time for the next update of the metadata based on the information included within the current metadata message within the overhead portion of the first mobile broadcast transmission.