6.3A Frequency Error for DC-HSUPA

25.1013GPPRelease 17TSUser Equipment (UE) radio transmission and reception (FDD)

The UE modulated carrier frequencies shall be accurate to within ±0.1 PPM observed over a period of one timeslot compared to the average of the carrier frequencies received from the Node B. When the signal from one Node B cell is out-of-sync, the UE modulated carrier frequency shall be compared to the remaining carrier frequency received from the other Node B cell. These signals will have an apparent error due to Node B frequency error and Doppler shift. The signals from the Node B must be averaged over sufficient time such that errors due to noise or interference are within the above ±0.1PPM figure. The frequency error of the carrier frequencies received from the Node B shall be the same in average. The UE shall use the same frequency source for both RF frequency generation and the chip clock.