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Service data transmission method, receiver, mobile terminal, transmitter and base station

一种业务数据、接收机的技术，应用在移动终端,发射机以及基站,业务数据传输方法,接收机领域，能够解决多电池能量、消耗等问题，达到信号带宽变窄、降低功耗开销、以及相关存储减小的效果

Active Publication Date: 2011-11-23
SANECHIPS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, users often do not have high-speed data services. For example, the user's effective data bandwidth only occupies 180kHz. Traditional receivers for broadband systems still receive signals in full-bandwidth reception mode, and the reception is still in a receiving state with a high processing load. , will undoubtedly consume more battery power

Method used

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  • Service data transmission method, receiver, mobile terminal, transmitter and base station
  • Service data transmission method, receiver, mobile terminal, transmitter and base station
  • Service data transmission method, receiver, mobile terminal, transmitter and base station

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] In this embodiment, a transmitter is provided, which is different from the prior art, such as Figure 4 As shown, the scheduling module of the transmitter includes: a mode determination submodule 400, a configuration submodule 402, wherein,

[0032] The mode determination sub-module 400 is used to judge whether the current service of the terminal accessing the base station is a non-high-speed transmission service, if so, trigger the configuration sub-module 402 to configure the frequency resources corresponding to the narrowband mode for the terminal, otherwise, determine that the terminal adopts the broadband mode Receive business data;

[0033] The configuration sub-module 402 is used to allocate multiple subcarriers for service data transmission to the terminal, generate control signals indicating multiple subcarriers, and control the radio frequency module to send control signals to the terminal, wherein the highest frequency FRE among the multiple subcarriers High...

Embodiment 2

[0045] In this embodiment, a receiver is provided, such as Image 6 As shown, the receiver includes: a radio frequency module (RF) 60, a receiver control module 61, wherein the radio frequency module 60 is used to receive a control signal from a base station accessed by a mobile terminal, and output it to the receiver control module 61, And for receiving subsequent service data from the base station, wherein the control signal is used to indicate multiple subcarriers allocated for the terminal for service data transmission; the receiver control module 61 is used to determine the highest frequency FRE among the multiple subcarriers High with the lowest frequency FRE Low Whether the difference exceeds the threshold value TH B , if it does not exceed, the service data is received in the narrowband mode, otherwise, the service data is received in the wideband mode.

[0046] Regardless of whether the current service is in a low-rate service or a high-rate service, the existing te...

Embodiment 3

[0066] In this embodiment, a service data transmission method is provided to realize the functions of the base station transmitter and the terminal receiver in the first and second embodiments above, Figure 8 It is a flowchart of a service data transmission method according to Embodiment 3 of the present invention, including:

[0067] Step S802, the receiver of the mobile terminal receives a control signal from the base station, wherein the control signal is used to indicate multiple subcarriers allocated to the terminal for service data transmission;

[0068] Step S804, judging the highest frequency FRE among multiple subcarriers High with the lowest frequency FRE Low Whether the difference exceeds the threshold value TH B , if yes, execute step S806, otherwise, execute step S808;

[0069] Step S806, adopting broadband mode to receive service data;

[0070] Step S808, the receiver adopts the narrowband mode to receive service data.

[0071] In the existing service data ...

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Abstract

The invention discloses a service data transmission method, a receiver, a mobile terminal, a transmitter and a base station. The method comprises the following steps of: receiving a control signal from the base station by the receiver of the mobile terminal, wherein the control signal is used for indicating a plurality of sub-carriers distributed for the terminal and used for transmitting service data; and judging whether the difference between the highest frequency FREHigh and the lowest frequency FRELow in the plurality of sub-carriers exceeds a threshold value THB, if not, receiving the service data by the receiver in a narrow-band mode, or else, receiving the data service in a broadband mode. According to the technical scheme provided by the invention, the signal bandwidth processed by the receiver can be narrowed, the digital sampling rate can be lowered, the calculated quantity and the relative storage of an FFT (Fast Fourier Transform) module can be reduced, and the effect of reducing power consumption of the mobile terminal can be further reduced.

Description

technical field [0001] The present invention relates to the communication field, in particular to a service data transmission method, a receiver, a mobile terminal, a transmitter and a base station. Background technique [0002] With the increasing demands of mobile communication users, high spectral efficiency is becoming one of the main requirements of mobile communication systems, and Orthogonal Frequency Division Multiplexing (OFDM) is just one of the main supporting physical layer technologies. The corresponding multi-user access technology in a multi-user environment is OFDMA, multiple mobile users can multiplex spectrum resources at the sub-carrier resource level, for example, the downlink of Long-Term Evolution (LTE) The road uses such OFDMA technology. [0003] figure 1 Shows the block diagram of the wideband wireless OFDMA base station transmitter. The data of each user is coded and modulated, and the base station maps the signal to the broadband frequency band ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/02H04W72/04H04W88/08H04B1/02H04B1/06
CPCH04L5/0094H04L5/0096H04L5/0042H04L5/0007H04L5/0044H04L27/265H04B1/0035H04L27/2646H04W52/0216Y02D30/70H04L5/06
Inventor 龚明
Owner SANECHIPS TECH CO LTD
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