DM RS Based LTE Downlink Physical Layer

Apparatus, comprising

• synchronizing means adapted to synchronize with a cell of a cellular communication system based on a synchronization signal and to obtain a cell identification of the cell;
• receiving means adapted to receive a symbol only on one or more subcarriers and subframes which carry at least one symbol of a physical broadcast channel;
• first obtaining means adapted to obtain a common demodulation reference symbol based on the cell identification and the received symbol;
• demodulating means adapted to demodulate a signal received on the physical broadcast channel based on the common demodulation reference symbol;
• user equipment means adapted to provide a user equipment functionality of the communication system.

Method, comprising

• synchronizing with a cell of a cellular communication system based on a synchronization signal to obtain a cell identification of the cell;
• receiving a symbol only on one or more subcarriers and subframes which carry at least one symbol of a physical broadcast channel;
• obtaining a common demodulation reference symbol based on the cell identification and the received symbol;
• demodulating a signal received on the physical broadcast channel based on the common demodulation reference symbol;
• providing a user equipment functionality of the communication system.