Method for transmitting data in a radio network, a radio network and a receiver
View Patent ↗The invention relates to a method for transmitting data in a transmission interval ( 201 ) using a plurality of time slots ( 202 ) and a plurality of transmission channels ( 203 ) to a receiver ( 104 A) of a radio network ( 100 ) comprising a transmitter ( 103 ) and at least one additional receiver ( 104 B). The method according to the invention comprises the following steps: transmitting at least one data packet ( 204 ) having an embedded identification key ( 105 ) by the transmitter ( 103 ) via at least one transmission channel ( 203 ) in a time slot ( 202 A) of the transmission interval ( 201 ), monitoring the at least one transmission channel ( 203 ) by means of the receiver ( 104 A) for data packets ( 204 ) transmitted in the time slot ( 202 A), said data packets having embedded identifiers ( 105 ) that are assigned to the receiver ( 104 A), and switching the receiver ( 104 A) to an idle state until the end of the transmission interval ( 201 ) if the receiver ( 104 A) has received no data packet ( 204 ) with the embedded identifier ( 105 A) assigned to the receiver ( 104 A) during the time slot ( 202 ). The invention also relates to a radio network ( 100 ) and to a receiver ( 104 ) that are suitable for carrying out the method.
1. A method for receiving data from a base station over a network during a transmission interval, the method being performed by a mobile device and comprising:
monitoring at least one transmission channel for one or more data packets transmitted by the base station in a first time slot of the transmission interval, the transmission interval including a plurality of time slots, wherein each of the one or more data packets includes an identifier that is assigned to a particular mobile device;
determining whether one or more data packets have been received during the first time slot via the at least one transmission channel based on whether the one or more data packets includes an identifier corresponding to the mobile device;
in response to determining that one or more data packets have been received, processing the received one or more data packets; and
repeating the determining and the processing steps for subsequent time slots in the transmission interval until (i) determining that no data packet has been received during a subsequent time slot, or (ii) the transmission interval ends;
wherein in response to determining that no data packet has been received during a subsequent time slot, switching to an idle state until the transmission interval ends.
2. The method of claim 1 , further comprising: receiving a measuring signal from the base station during a measuring phase of the transmission interval, the measuring phase corresponding to one of the plurality of time slots taking place before the first time slot.
3. The method of claim 2 , further comprising:
determining channel properties of the at least one transmission channel based on the measuring signal.
4. The method of claim 3 , wherein determining channel properties comprises:
determining a reception quality of the measuring signal; and
transmitting at least one value on based on the determined reception quality to the base station.
5. The method of claim 3 , wherein the channel properties of the at least one transmission channel, which were determined in the measuring phase, are used by the base station to determine a transmission schedule for the transmission interval.
6. The method of claim 5 , wherein the channel properties, which are used by the base station during the determination of the transmission schedule, includes predetermined requirements corresponding to data rates, real time conditions or connection qualities.
7. A system comprising:
a base station for transmitting data packets over a network, the data packets including an identifier that is assigned to a particular mobile device, wherein the base station is configured to generate a transmission schedule for a transmission interval, the transmission interval including a plurality of time slots; and
a plurality of mobile devices, each of the mobile devices being configured to:
monitor a plurality of transmission channels for data packets transmitted by the base station in a first time slot of the transmission interval;
determine whether one or more data packets have been received during the first time slot via at least one transmission channel based on whether the one or more data packets includes an identifier corresponding to the mobile device;
in response to determining that one or more data packets have been received, process the received one or more data packets;
repeat the determining and the processing for subsequent time slots in the transmission interval until (i) determining that no data packet has been received during a subsequent time slot, or (ii) the transmission interval ends;
wherein in response to determining that no data packet has been received during a subsequent time slot, switch to an idle state until the transmission interval ends.
8. The system of claim 7 , wherein the network is an Orthogonal Frequency Division Multiplexing radio network.
9. A mobile device comprising:
a transmitter for transmitting data over a network; and
a receiver for receiving data over the network;
wherein the mobile device is configured to:
monitor a plurality of transmission channels for data packets transmitted by a base station in a first time slot of the transmission interval, the data packets each including an identifier that is assigned to a particular mobile device;
determine whether one or more data packets have been received during the first time slot via at least one transmission channel based on whether the one or more data packets includes an identifier corresponding to the mobile device;
in response to determining that one or more data packets have been received, process the received one or more data packets;
repeat the determining and the processing for subsequent time slots in the transmission interval until (i) determining that no data packet has been received during a subsequent time slot, or (ii) the transmission interval ends;
wherein in response to determining that no data packet has been received during a subsequent time slot, switch to an idle state until the transmission interval ends.
10. The mobile device of claim 9 , wherein the mobile device is configured to receive a measuring signal from the base station during a measuring phase of the transmission interval, the measuring phase corresponding to one of the plurality of time slots taking place before the first time slot.
11. The mobile device of claim 10 , wherein the mobile device is configured to determine channel properties of the at least one transmission channel based on the measuring signal.
12. The mobile device of claim 10 , wherein determining channel properties comprises:
determining a reception quality of the measuring signal; and
transmitting at least one value on based on the determined reception quality to the base station.
13. The mobile device of claim 10 , wherein the channel properties of the at least one transmission channel, which were determined in the measuring phase, is used by the base station to determine a transmission schedule for the transmission interval.
14. A method for receiving data from a base station over a network during a transmission interval, the method being performed by a mobile device and comprising:
receiving a measuring signal from the base station during a measuring phase of the transmission interval, the measuring phase corresponding to one of a plurality of time slots;
determining channel properties of at least one transmission channel based on the measuring signal, wherein the channel properties of the at least one transmission channel, which were determined in the measuring phase, are used by the base station to determine a transmission schedule for the transmission interval;
monitoring the at least one transmission channel for one or more data packets transmitted by the base station in a first time slot of the transmission interval,
wherein each of the one or more data packets includes an identifier that is assigned to a particular mobile device;
determining whether one or more data packets have been received during the first time slot via the at least one transmission channel based on whether the one or more data packets includes an identifier corresponding to the mobile device;
in response to determining that one or more data packets have been received, processing the received one or more data packets; and
repeating the determining and the processing steps for subsequent time slots in the transmission interval until (i) determining that no data packet has been received during a subsequent time slot, or (ii) the transmission interval ends;
wherein in response to determining that no data packet has been received during a subsequent time slot, switching to an idle state until the transmission interval ends.
15. The method of claim 14 , wherein the channel properties, which are used by the base station during the determination of the transmission schedule, includes predetermined requirements corresponding to data rates, real time conditions or connection qualities.