Method for the transmission of data packets in a mobile radio system and corresponding mobile radio system
AssigneeSiemens Akiengesellschaft
InventorsFaiba Raji, Frank Wegner
Life of this patent
Estimating the term…
Abstract
A method transmits data packets in a mobile radio system and corresponding mobile radio system. The method permits an immediate transmission of data packets to the receiver station along a new transmission path, after a handover of a connection along a transmission path, between a transmission station and a receiver station, to a new transmitting station. The new transmission station thus receives no information regarding the transmission status of data packets, which were transmitted before the handover of the connection.
Claims31
A method for the transmission of data packets from a first transmission station to a mobile receiver station in a mobile radio system, comprising:
- establishing a connection between the first transmission station and the mobile receiver station by way of a second transmission station,
- sending first data packets from the first transmission station to the second transmission station for transmission from the second transmission station to the mobile receiver station,
- determining information relating to first data packets which were not successfully transmitted to the mobile receiver station, the information being determined in the second transmission station and/or the mobile receiver station,
- performing a handover of the connection from the second transmission station to a third transmission station,
- after the handover of the connection, transmitting second data packets from the first transmission station to the mobile receiver station via the third transmission station, and
- sending the information to the first transmission station and/or the third transmission station only after second data packets are transmitted.
A mobile radio system, comprising:
- a first transmission station;
- a second transmission station to receive first data packets from the first transmission station;
- a mobile receiver station to receive first data packets from the first transmission station via a connection through the second transmission station;
- a third transmission station to receive second data packets after a handover of the connection from the second transmission station to the third transmission station, the second data packets being received from the first transmission station for transmission to the mobile receiver station;
- a checking unit to determine information about first data packets that were not successfully transmitted to the mobile receiver station by way of the second transmission station, the checking unit being provided in the second transmission station and/or the mobile receiver station;
- and
- an information send unit to send the information to the first transmission station and/or the third transmission station only after the handover of the connection to the third transmission station has taken place and second data packets have been sent from the first transmission station to the third transmission station.
Dependencies are inferred from the claim text.