Patent ID: 8204041
Filing Date: 2012-06-19
Classification: H04L,H04W

Abstract:
1. A method for transmitting user data via a dialed connection in a Global System for Mobile Communications (GSM)-type radio communication network having a circuit switched domain and a packet switched domain, comprising: transmitting the user data as dedicated data packets upon controlled release on a user end device; providing a dedicated push-to-talk (PTT) domain which offers push-to-talk (PTT) services and which hosts push-to-talk service network nodes (PTT SNN) and application servers (AS); and using dynamic time slot assignment such that the push-to-talk (PTT) domain connects directly to a base station controller (BSC) and a packet control unit (PCU) via push-to-talk service network nodes (PTT SNN) and allocates its own time slots in the base station controller (BSC) and the packet control unit (PCU), the push-to-talk (PTT) domain being separated from the circuit switched and packet switched domains and connecting to the base station controller (BSC) and packet control unit (PCU) without connecting through the circuit switched and packet switched domains, the push-to-talk (PTT) domain connecting to the circuit switched and packet switched domains only through the base station controller (BSC) and the packet control unit (PCU), respectively, wherein the push-to-talk service network nodes (PTT SNN) are directly connected to the base station controller (BSC) and the packet control unit (PCU) via a voice channel Abis interface; accessing, by the user end device included in a plurality of multicast sessions simultaneously, multiple multicast channels in parallel.