Patent ID: 8731034
Filing Date: 2014-05-20
Classification: H04L,H04W

Abstract:
1. A method, comprising: receiving at a base station a Channel Quality Indicator (CQI) in a x-bit modulation scheme representative of a CQI level of a communication link between a wireless device and the base station; receiving at the base station at least one CQI in a y-bit modulation scheme from the wireless device after receiving the CQI in the x-bit modulation scheme, wherein the CQI in the y-bit modulation scheme comprises less bits than the CQI in the x-bit modulation scheme and wherein the CQI in the y-bit modulation scheme is indicative of a determined increment by which the CQI level of the communication link has increased or a determined decrement of by which the CQI level of the communication link has decreased as compared to the CQI level sent in the x-bit modulation scheme; determining at the base station whether a trigger event occurred based on the received CQI in the y-bit modulation scheme; and instructing the wireless device to send the CQI in the x-bit modulation scheme after sending the CQI in the y-bit modulation scheme when the base station determines that the trigger event occurred.