Method for operating a mobile radio network
View Patent ↗A method for operating a mobile radio network is proposed which makes possible improved error protection of the control data to be transmitted while requiring as small a transmission bandwidth as possible. In this context, payload data is transmitted in payload data packets. The payload data packets are each assigned at least one header information item containing control data for routing the payload data packets in the mobile radio network. The control data and the payload data are transmitted with different error protection.
1. A method for operating a mobile radio network, comprising:
combining payload data to form payload data packets in an application protocol layer;
transmitting the payload data in the payload data packets;
assigning each of the payload data packets at least one respective header information item containing control data for routing the payload data packets in the mobile radio network, the payload data packets being assigned the at least one respective header information item in at least one of a transport protocol layer and a network protocol layer;
transmitting the control data and the payload data with different error protection;
compressing the control data of the at least one respective header information item in a convergence protocol layer;
transmitting the control data of each of the at least one respective header information item as a control data packet via a different radio link in the mobile radio network than the associated payload data packet; and
transmitting an allocation information item with the respective control data packet and the associated payload data packet, the allocation information item serving as the basis for bringing together the respective control data packet with the associated payload data packet at a receiver.
2. The method as recited in claim 1 , wherein the control data are transmitted in compressed form.
3. A method for operating a mobile radio network, comprising:
combining payload data to form payload data packets in an application protocol layer;
transmitting the payload data in the payload data packets;
assigning each of the payload data packets at least one respective header information item containing control data for routing the payload data packets in the mobile radio network, the payload data packets being assigned the at least one respective header information item in at least one of a transport protocol layer and a network protocol layer;
transmitting the control data and the payload data with different error protection;
compressing the control data of the at least one respective header information item in a convergence protocol layer;
transmitting the control data of each of the at least one respective header information item as a control data packet via a different radio link in the mobile radio network than the associated payload data packet; and
transmitting an allocation information item with the respective control data packet and the associated payload data packet, the allocation information item serving as the basis for bringing together the respective control data packet with the associated payload data packet at a receiver, wherein the control data are transmitted in compressed form, wherein the control data are compressed according to an interceding compression method, comprising:
storing the control data of a last transmitted payload data packet in a transmitter and in the receiver, and for the payload data packet to be transmitted subsequently, transmitting only the control data that changed in comparison with the control data of the last transmitted payload data packet.
4. The method as recited in claim 1 , wherein the error protection for the control data is chosen to be higher than that for the payload data.
5. The method as recited in claim 1 , wherein the error protection for the control data to be transmitted is accomplished in a protocol layer below the convergence protocol layer.