Patent ID: 7349711

Claim:
A method of counting the number of MBMS subscribers, wherein a UE is in one of a plurality of modes, the method comprising the following steps of: setting different types of notifications according to the plurality of modes, each of which is designed to instruct UEs in different sets of modes respectively, each of the different sets of modes including at least one of the plurality of modes to respond to counting of the number of subscribers; a network side issuing notifications to UEs, so as to monitor an activation of UEs in the different sets of modes to a MBMS with said notifications and implement counting the number of subscribers of the MBMS; wherein: said notifications are designed to instruct UEs in a Connected mode and UEs in an Idle mode to respond to the counting the number of subscribers; or said notifications are designed to instruct the UEs in the Idle mode to respond to the counting the number of subscribers; or said notifications are designed to instruct UEs in a Discontinuous Reception mode to respond to the counting the number of subscribers; or said notifications are designed to instruct the UEs in the Idle mode and the UEs in the Discontinuous Reception mode to respond to the counting the number of subscribers; wherein a process of counting the number of subscribers of each MBMS service further comprises: the network side issuing the notifications to the UEs to instruct at least one of the UEs in the Connected mode or the UEs in the Idle mode to respond to the counting the number of subscribers; and through monitoring an activation of at least one of the UEs in the Connected mode or the UEs in the Idle mode to an MBMS service, the network side achieving the counting the number of subscribers of each MBMS service; wherein said method also comprises the following steps after said process of counting the number of subscribers of each MBMS service is completed: a Core Network transmitting MBMS session information to the network side; the network side performing recounting the number of subscribers of each MBMS through reissuing different types of notifications to UEs according to a predefined decision condition; wherein said process that the network side performing recounting the number of subscribers through reissuing different types of notifications to UEs according to the decision condition further comprises: setting a threshold for switching between a PTP bearer mode and a PTM bearer mode; supposing the number of UEs which receive MBMS data and whose detail cell location information is known by an RNC in each cell is n (a natural number); when the network side finds the number of UEs accessing the MBMS in a URA_PCH state is less than or equal to a value (Threshold-Max(n)), the network side performing recounting the number of subscribers of each MBMS through reissuing notifications to the UEs to instruct the UEs in the Idle mode to respond to the counting of the number of subscribers; said UEs in the URA_PCH state being UEs in the Discontinuous Reception mode.