Patent ID: 8855039

Claim:
A channel content change notification method, comprising: a base station determining whether contents carried on a configured Multimedia Broadcast and Multicast Service, MBMS, point-to-multipoint Control Channel, MCCH, or MCCHs are changed; and the base station transmitting a notification about a change of the contents carried on the MCCH or MCCHs to a user equipment on a Physical Downlink Control Channel, PDCCH, wherein the base station transmitting the notification about the change of the contents carried on the MCCH or MCCHs to the user equipment on the PDCCH comprises the base station generating first Downlink Control Information, DCI, to notify about the change of the contents carried on the MCCH or MCCHs; scrambling the first DCI with a predefined first Radio Network Temporary Identifier, RNTI, corresponding to the first DCI; and transmitting the scrambled first DCI to the user equipment on the PDCCH, and wherein the base station generating the first DCI comprises A. the base station selecting one of preset lengths of bits, and generating a DCI with the bit length as the first DCI; or B. the base station selecting one of DCI formats already existing in a Long Term Evolution, LTE, system, and generating a DCI with the same bit length as the bit length of the DCI format as the first DCI.