A method for service data reception, the method comprising: receiving, by a receiver of a mobile terminal, a control signal sent from a base station, wherein the control signal is used for indicating more than one subcarriers allocated to the mobile terminal and the more than one subcarriers are used for transmitting service data; judging whether the difference between the highest frequency FRE High and the lowest frequency FRE Low in the more than one subcarriers exceeds a threshold value TH B; and if the difference does not exceed the threshold value TH B, then receiving, by the receiver, the service data using a narrowband mode, otherwise receiving, by the receiver, the service data using a broadband mode; wherein the step of receiving, by the receiver, the service data using a narrowband mode comprises: configuring working parameters of a radio frequency module, a low pass filter module, an analog digital converter module and a Fourier transform module of the receiver respectively, with the working parameters corresponding to the narrowband mode; and receiving the service data using the radio frequency module, low pass filter module, analog digital converter module and Fourier transform module the working parameters of which have been configured; characterised in that: the step of configuring the working parameter of the radio frequency module comprises: configuring a center frequency of the radio frequency module to be as follows: Fc = fc + FR E High + FR E Low 2, wherein the fc is the center frequency of the radio frequency module under the broadband mode; the step of configuring the working parameter of the analog digital converter module comprises: configuring sampling frequency of the analog digital converter module to be as follows: Fs = f s / M, wherein the f s is a sampling frequency of the analog digital converter module under the broadband mode, the M = 2" and the value of M is the minimum integer which makes Fs > (1+ r) B right, wherein n is a positive integer, B = FRE High - FRE Low, and r is a receiver working parameter; the step of configuring the working parameters of the low pass filter module comprises: configuring a passband of the low pass filter module to be as follows: B = FRE High - FRE Low and configuring a stop-band of the low pass filter module to be less than the Fs; and the step of configuring the working parameter of the Fourier transform module comprises: configuring transform size of the Fourier transform module to be as follows: N ' = N / M, wherein the N is the transform size of the Fourier transform module under the broadband mode. receiving, by a receiver of a mobile terminal, a control signal sent from a base station, wherein the control signal is used for indicating more than one subcarriers allocated to the mobile terminal and the more than one subcarriers are used for transmitting service data; judging whether the difference between the highest frequency FRE High and the lowest frequency FRE Low in the more than one subcarriers exceeds a threshold value TH B; and if the difference does not exceed the threshold value TH B, then receiving, by the receiver, the service data using a narrowband mode, otherwise receiving, by the receiver, the service data using a broadband mode; configuring working parameters of a radio frequency module, a low pass filter module, an analog digital converter module and a Fourier transform module of the receiver respectively, with the working parameters corresponding to the narrowband mode; and receiving the service data using the radio frequency module, low pass filter module, analog digital converter module and Fourier transform module the working parameters of which have been configured; the step of configuring the working parameter of the radio frequency module comprises: configuring a center frequency of the radio frequency module to be as follows: Fc = fc + FR E High + FR E Low 2, wherein the fc is the center frequency of the radio frequency module under the broadband mode; the step of configuring the working parameter of the analog digital converter module comprises: configuring sampling frequency of the analog digital converter module to be as follows: Fs = f s / M, wherein the f s is a sampling frequency of the analog digital converter module under the broadband mode, the M = 2" and the value of M is the minimum integer which makes Fs > (1+ r) B right, wherein n is a positive integer, B = FRE High - FRE Low, and r is a receiver working parameter; the step of configuring the working parameters of the low pass filter module comprises: configuring a passband of the low pass filter module to be as follows: B = FRE High - FRE Low and configuring a stop-band of the low pass filter module to be less than the Fs; and the step of configuring the working parameter of the Fourier transform module comprises: configuring transform size of the Fourier transform module to be as follows: N ' = N / M, wherein the N is the transform size of the Fourier transform module under the broadband mode.