Method and device for transmitting a channel quality information

1. A method for transmitting a channel quality information on a quality of a communication channel in a radio communications system, wherein the system comprises a regular cycle for transmitting the channel quality information in an uplink direction from a communication unit to a base station, the method comprising:

determining in the communication unit whether a pre-defined condition is met by generating a comparison based on a quantity with a reference value, and, based on the comparison, determining whether a saturated condition is present for a pre-defined number of transmission slots by determining whether a total uplink transmission power to transmit the channel quality information at the pre-defined number of transmission slots would exceed an allowable uplink transmission power; and

suppressing in the communication unit the transmitting of the channel quality information based on the pre-defined condition being met.

2. The method according to claim 1 , further comprising:

measuring a channel quality in the communication unit to obtain the channel quality information.

3. The method according to claim 1 , further comprising:

measuring one or more of a received signal strength and a bit error rate to obtain the channel quality information.

4. The method according to claim 1 , wherein the channel quality information comprises a channel quality indicator (CQI) comprising one or more of a Received Signal Strength Indicator (RSSI) and a Bit Error Rate (BER).

5. The method according to claim 1 , wherein the communication channel comprises an uplink channel comprising a Dedicated Physical Control Channel (DPCCH).

6. The method according to claim 1 , further comprising:

transmitting the channel quality information via a High Speed Dedicated Physical Control Channel (HS-DPCCH) if the pre-defined condition does not dictate a suppression of the transmission of the channel quality information.

7. The method according to claim 1 , further comprising:

transmitting an acknowledgment information in the uplink direction, wherein the acknowledgement information acknowledges receipt of data on the communication channel.

8. The method according to claim 7 , wherein the pre-defined condition is met if, for the pre-defined number of transmission slots, no acknowledgement information has been transmitted.

9. A method for transmitting a channel quality information on a quality of a communication channel in a radio communications system, wherein the system comprises a regular cycle for transmitting the channel quality information in an uplink direction from a communication unit to a base station, the method comprising:

determining in the communication unit whether a pre-defined condition is met by generating a comparison based on a quantity with a reference value, and, based on the comparison, determining whether a total uplink transmission power to transmit the channel quality information at a pre-defined number of transmission slots would exceed an allowable uplink transmission power; and

adapting in the communication unit the regular cycle based on the pre-defined condition being met.

10. The method according to claim 9 , further comprising:

transmitting an acknowledgment information in the uplink direction, wherein the acknowledgement information acknowledges receipt of data at the communication unit on the communication channel.

11. The method according to claim 10 , wherein the pre-defined condition is met if, for the pre-defined number of transmission slots, no acknowledgement information has been transmitted.

12. A device for transmitting a channel quality information on a quality of a communication channel in a radio communications system, wherein the system comprises a regular cycle for transmitting the channel quality information in an uplink direction from a communication unit to a base station, the device comprising:

a processor configured to suppress the transmitting of the channel quality information based on a pre-defined condition

and determine whether the pre-defined condition has been met by generating a comparison based on a quantity with a reference value, and, based on the comparison, determining whether a saturated condition is present for a pre-defined number of transmission slots by determining whether a total uplink transmission power to transmit the channel quality information at the pre-defined number of transmission slots would exceed an allowable uplink transmission power.

13. A device for transmitting a channel quality information on a quality of a communication channel in a radio communications system, wherein the system comprises a regular cycle for transmitting the channel quality information in an uplink direction from a communication unit to a base station, the device comprising:

a processor configured to adapt the regular cycle based on a pre-defined condition

and determine whether the pre-defined condition has been met by generating a comparison based on a quantity with a reference value, and, based on the comparison, determining whether a total uplink transmission power to transmit the channel quality information at a pre-defined number of transmission slots would exceed a maximum allowable uplink transmission power.

14. A communication unit for a radio communications system, wherein the system comprises a regular cycle for transmitting in an uplink direction from the communication unit to a base station a channel quality information on a quality of a communication channel, the communication unit comprising:

a device configured to transmit the channel quality information, the device comprising a processor configured to suppress the transmitting of the channel quality information based on a pre-defined condition being met, and determine whether the pre-defined condition has been met by generating a comparison based on a quantity with a reference value, and, based on the comparison, determining whether a saturated condition is present for a pre-defined number of transmission slots by determining whether a total uplink transmission power to transmit the channel quality information at the pre-defined number of transmission slots would exceed an allowable uplink transmission power.