Patent ID: 7769010
Filing Date: 2010-08-03
Classification: H04W

Abstract:
1. A method in a radio network controller functioning as a controlling radio network controller (CRNC) within a radio access network having a plurality of other radio network controllers (RNCs) for counting of multimedia service joined mobile terminals located in a cell for a point-to-point (PTP)/point-to-multipoint (PTM) transmission decision, characterised by a retransmission correction of a counted number of mobile terminals in case of a repetition of a multimedia service session, using an estimated number of the mobile terminals having received a previous transmission of said multimedia service session from any of the other radio network controllers, said retransmission correction comprising the steps of: receiving a repetition indicator in a multimedia session start notification from a core network; collecting PTP/PTM information regarding previous transmissions of said multimedia service session stored in the mobile terminal contexts and in mobile terminal information received in links from serving radio network controllers; calculating a repetition correction value using said repetition indicator and said collected PTP/PTM information to estimate the number of mobile terminals located in the cell which have received the previous transmission of the multimedia service session; correcting the counted number of the multimedia service joined mobile terminals using said repetition correction value; and storing said repetition indicator and said PTP/PTM information regarding said repetition of the multimedia service session in the mobile terminal contexts.