Method for transmitting a message over a broadcast channel with retransmission over a point-to-point link
AssigneeSigfox
InventorsArnaud Mansuy, Juan Carlos Zuniga
Life of this patent
Estimating the term…
Abstract
A method for transmitting a message via an access network to a group of terminals is provided. The access network transmits the message to the group of terminals over a broadcast channel. The access network receives a request for retransmission of the message transmitted from a terminal that has not correctly received the message. The access network evaluates a predetermined broadcast retransmission criterion and retransmits the message over a point-to-point link or over a broadcast channel according to the predetermined broadcast retransmission criterion.
Claims8
A method for transmitting a message by an access network from a wireless communication system to a group of terminals, comprising:
- transmitting, by the access network, at least one message to a group of terminals over a broadcast channel;
- receiving, by the access network, a request for retransmission of said at least one message transmitted from a terminal that has not correctly received said at least one message;
- evaluating, by the access network, a predetermined broadcast retransmission criterion;
- when the predetermined broadcast retransmission criterion is verified:
- retransmitting said at least one message, by the access network, over the broadcast channel to the group of terminals including the terminal requesting retransmission of said at least one message;
- when the predetermined broadcast retransmission criterion is not verified:
- retransmitting said at least one message, by the access network, over a point-to-point link to the terminal requesting retransmission of said at least one message;
- and
- wherein the predetermined broadcast retransmission criterion is evaluated based on at least one of the following parameters:
- a number of messages to be retransmitted to one or more terminals of the group;
- a total size of the messages to be retransmitted to one or more terminals of the group;
- and
- a capacity of broadcast channels planned by the access network.
An access network for a wireless communication system comprising a plurality of base stations configured to exchange messages with terminals, the access network being configured to:
- transmit at least one message to a group of terminals over a broadcast channel;
- receive a request for retransmission of said at least one message transmitted from a terminal that has not correctly received said at least one message;
- evaluate a predetermined broadcast retransmission criterion;
- when the predetermined broadcast retransmission criterion is verified:
- retransmit said at least one message over the broadcast channel to the group of terminals including the terminal requesting retransmission of said at least one message,
- when the predetermined broadcast retransmission criterion is not verified:
- retransmitting said at least one message over a point-to-point link to the terminal requesting retransmission of said at least one message;
- and
- wherein the predetermined broadcast retransmission criterion is evaluated based on at least one of the following parameters:
- a number of messages to be retransmitted to one or more terminals of the group;
- a total size of messages to be retransmitted to one or more terminals of the group;
- and
- a capacity of broadcast channels planned by the access network.
Dependencies are inferred from the claim text.