Method and system for data-driven, variable-rate, channel quality indicator for LTE non-real-time bursty traffic
A method and system, in a long term evolution architecture utilizing adaptive modulation and coding requiring periodic channel quality indication reports, the method having the steps of: waiting for an idle channel indication; and upon detection of the idle channel indication, decreasing the rate of periodic channel quality indication reports.
1. A method performed at an enhanced node B, the method comprising:
receiving channel quality indications from a user equipment at a first rate;
determining a period of time for which a buffer on the enhanced Node B has been empty, the buffer being for storing data for the user equipment;
responsive to the period of time, signaling, utilizing a medium access control signaling, a decrease in the rate of periodic channel quality indication reports to the user equipment;
receiving channel quality indications from the user equipment at the decreased rate;
after the receiving, transmitting data to the user equipment; and
after the transmitting, receiving channel quality indications from the user equipment at the first rate without signaling an increase in the rate of periodic channel quality indication reports to the user equipment.
2. The method of claim 1 , further comprising releasing network resources required for channel quality indication reporting.
3. The method of claim 2 , wherein the network resources comprise orthogonal frequency division multiplexing resources.
4. An enhanced node B comprising:
a communications subsystem;
a processor;
wherein the communications subsystem and the processor cooperate to:
receive channel quality indications from a user equipment at a first rate;
determine a period of time for which a buffer on the enhanced Node B has been empty, the buffer being for storing data for the user equipment;
responsive to the period of time, signal, utilizing a medium access control signaling, a decrease in the rate of periodic channel quality indication reports to the user equipment;
receive channel quality indications from the user equipment at the decreased rate;
after the receiving, transmit data to the user equipment; and
after the transmitting, receive channel quality indications from the user equipment at the first rate without signaling an increase in the rate of periodic quality indication reports to the user equipment.
5. The enhanced node B of claim 4 , wherein the communications subsystem and the processor further cooperate to release network resources required for channel quality indication reporting.
6. The enhanced node B of claim 5 , wherein the network resources comprise orthogonal frequency division multiplexing resources.
7. A non-transitory computer readable medium having stored thereon executable code for execution by a processor of an enhanced Node B, the executable code comprising instructions for:
receiving channel quality indications from a user equipment at a first rate;
determining a period of time for which a buffer on the enhanced Node B has been empty, the buffer being for storing data for the rate equipment;
responsive to the period of time, signaling, utilizing a medium access control signaling, a decrease in the rate of periodic channel quality indication reports to the user equipment;
receiving channel quality indications from the user equipment at the decreased rate;
after the receiving, transmitting data to the user equipment; and
after the transmitting, receiving channel quality indications from the user equipment at the first rate without signaling an increase in the rate of periodic channel quality indication reports to the user equipment.
8. The non-transitory computer readable medium of claim 7 , the executable code further comprising instructions for releasing network resources required for channel quality indication reporting.
9. The non-transitory computer readable medium of claim 8 , wherein the network resources comprise orthogonal frequency division multiplexing resources.