Patent ID: 7672256

Claim:
A wireless communication method that supports enhanced uplink (EU) such that an absolute grant is received via an enhanced dedicated channel (E-DCH) absolute grant channel (E-AGCH) and a relative grant is received via an E-DCH relative grant channel (E-RGCH), a method of generating a serving grant, comprising: decoding E-AGCH signals received via the E-AGCH to detect an absolute grant; decoding E-RGCH signals received via the E-RGCH to detect at least one relative grant; generating a serving grant based on at least one of the detected absolute grant and the relative grant, wherein the relative grant is detected by performing a hypothesis test on the E-RGCH signals; calculating a log likelihood ratio (LLR) of a conditional probability that a DOWN command is detected to a conditional probability that a HOLD command is detected based on E-RGCH signals received from at least one non-serving radio link (RL); determining that the relative grant is a DOWN command if the LLR is equal to or greater than a detection threshold; and determining that the relative grant is a HOLD command if the LLR is less than the detection threshold.