Point-to-multipoint data transmission
First Claim
1. Method for performing point-to-multipoint data transmission from a transmitting station to a plurality of receiving stations, the method comprising the steps of:
- transmitting data from the transmitting station to the plurality of receiving stations via a first communication channel;
performing a first channel switching in the transmitting station, from the first communication channel to a second communication channel; and
retransmitting the data via the second communication channel.
1 Assignment
0 Petitions
Accused Products
Abstract
The initial transmission of data packets in a point-to-multipoint communication network may often be delayed when retransmissions of erroneously decoded data packets are required. According to an aspect of the present invention, point-to-multipoint data transmission and retransmission of erroneously decoded data from a transmitting station to a plurality of receiving stations is performed, where retransmitted data is sent via at least one communication channel, which is different from the one used for the initially transmitted data. Advantageously, due to this there may be no need for further communication between the transmitting station and the receiving stations. Furthermore, according to an aspect of the present invention, the initial transmission of data packets is not delayed by retransmissions.
39 Citations
14 Claims
-
1. Method for performing point-to-multipoint data transmission from a transmitting station to a plurality of receiving stations, the method comprising the steps of:
-
transmitting data from the transmitting station to the plurality of receiving stations via a first communication channel;
performing a first channel switching in the transmitting station, from the first communication channel to a second communication channel; and
retransmitting the data via the second communication channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. Communication system for performing a point-to-multipoint data transmission from a transmitting station to a plurality of receiving stations,
wherein the transmitting station is adapted to transmit data from the transmitting station to the plurality of receiving stations via a first communication channel; -
wherein the transmitting station is adapted to perform a first channel switching from the first communication channel to a second communication channel;
wherein at least one of the plurality of receiving stations is adapted to perform a second channel switching from the first communication channel to the second communication channel;
wherein the at least one receiving station of the plurality of receiving stations erroneously decoded the data transmitted via the first communication channel; and
wherein the transmitting station is adapted to retransmit the data via the second communication channel.
-
-
13. Transmitting station for a communication system for a performing point-to-multipoint data transmission to a plurality of receiving stations,
wherein the transmitting station is adapted to transmit data from the transmitting station to the plurality of receiving stations via a first communication channel; -
wherein the transmitting station is adapted to perform a channel switching from the first communication channel to a second communication channel; and
wherein the transmitting station is adapted to retransmit the data via the second communication channel.
-
-
14. Receiving station for a communication system for receiving a data packet transmitted from a transmitter to a plurality of receiving stations by means of a point-to-multipoint data transmission,
wherein the receiving station is adapted to receive the data transmitted via the first communication channel; -
wherein the receiving station is adapted to perform a channel switching from a first communication channel to a second communication channel;
wherein the receiving station performs the channel switching when it was not able to decode the data error free; and
wherein the receiving station is adapted to receive the data transmitted via the second communication channel.
-
Specification