6.3A UE frequency stability for 1.28Mcps TDD MC-HSUPA

25.1023GPPRelease 17TSUser Equipment (UE) radio transmission and reception (TDD)

For multi-carrier transmission, the UE modulated carrier frequency 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 BS. These signals will have an apparent error due to BS frequency error and Doppler shift. In the later case, signals from the BS must be averaged over sufficient time that errors due to noise or interference are allowed for within the above ±0.1PPM figure. The UE shall use the same frequency source for both RF frequency generation and the chip clock.