A packet mode (e.g. IP) group communication service layer is provided on top of a standard mainstream cellular radio network. Conceptually, the group communication layer comprises a pair of basic logical entities, an application bridge and a call processing server (CPS). The bridge and the CPS run group service applications which communicate with group service application(s) in a mobile station MS over the IP connections provided by the radio network. The CPS is responsible for control plane management of group communications. The bridge is responsible for the real-time distribution of VoIP packets to the user terminals according to their group memberships over valid connections programmed by the CPS.
申请公布号
WO02085051(A1)
申请公布日期
2002.10.24
申请号
WO2002FI00313
申请日期
2002.04.12
申请人
NOKIA CORPORATION;LOEPPOENEN, JUSSI;RAJAHALME, JARNO;TOEYRYLAE, HANNU;VIMPARI, MARKKU;BONTEMPI, RICHARD
发明人
LOEPPOENEN, JUSSI;RAJAHALME, JARNO;TOEYRYLAE, HANNU;VIMPARI, MARKKU;BONTEMPI, RICHARD