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Mobile terminal and received signal processing system and method therefor

A technology for receiving signal processing and mobile terminals, applied in transmission systems, baseband system components, and shaping networks in transmitters/receivers, etc., to achieve the effect of reducing the number of receiving ports, reducing design complexity, and reducing layout difficulty

Active Publication Date: 2017-01-04
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem solved by the present invention is: for mobile terminals supporting LTE-A technology, how to simplify the circuit and reduce the design complexity of the radio frequency chip in the process of realizing carrier aggregation

Method used

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  • Mobile terminal and received signal processing system and method therefor
  • Mobile terminal and received signal processing system and method therefor
  • Mobile terminal and received signal processing system and method therefor

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0050] As described below, an embodiment of the present invention provides a system for processing received signals of a mobile terminal.

[0051] The received signal processing system of a mobile terminal provided in this embodiment is applicable to a mobile terminal such as a smart phone.

[0052] The mobile terminal can receive LTE signals, and use the carrier aggregation technology to combine multiple independent bandwidth resources scattered in the frequency spectrum, thereby increasing the actual available system bandwidth.

[0053] This embodiment relates to a specific implementation manner of using a carrier aggregation technology for LTE signals received by a mobile terminal.

[0054] refer to figure 2 The structure block diagram of the received signal processing system of the mobile terminal is shown.

[0055] The receiving signal processing system of the mobile terminal mainly includes: a plurality of filters, a low noise amplifier (LowNoise Amplifier, LNA) and a...

Embodiment 2

[0082] As described below, an embodiment of the present invention provides a system for processing received signals of a mobile terminal.

[0083] refer to Figure 4 The structure block diagram of the received signal processing system of the mobile terminal is shown.

[0084] The receiving signal processing system of the mobile terminal mainly includes: multiple filters and power dividers; where:

[0085] A plurality of filters are suitable for inputting received signals, filtering the input received signals, and outputting multiple signals after the received signals are filtered, wherein each signal corresponds to a frequency band;

[0086] The power divider is suitable for inputting signals of corresponding frequency bands, and performs power distribution on the input signals, and each signal outputs at least two signals after power distribution, and the composition of each signal in the at least two signals is the same, and the at least Each of the two signals includes a ...

Embodiment 3

[0092] As described below, an embodiment of the present invention provides a method for processing a received signal of a mobile terminal.

[0093] The method for processing received signals of a mobile terminal provided in this embodiment is applicable to mobile terminals such as smart phones.

[0094] The mobile terminal can receive LTE signals, and use the carrier aggregation technology to combine multiple independent bandwidth resources scattered in the frequency spectrum, thereby increasing the actual available system bandwidth.

[0095] This embodiment relates to a specific implementation manner of using a carrier aggregation technology for LTE signals received by a mobile terminal.

[0096] refer to Figure 5 The flow chart of the received signal processing method of the mobile terminal is shown. The following is a detailed description through specific steps:

[0097] S501. Filter the received signal, and output the multi-channel signal after the received signal is f...

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Abstract

The invention discloses a mobile terminal and a received signal processing system and method therefor. The system comprises a plurality of filters which are suitable for the filtering of the inputted received signals and the outputting of multiple signals, wherein each signal is corresponding to one frequency band; a power distributor which is suitable for the power distribution of the inputted signals at corresponding bands, wherein at least one power distributor is corresponding to a plurality of frequency bands. For a mobile terminal which supports the LTE-A technology, the system achieves that one power divider is corresponding to a plurality of frequency bands. In other words, the power distribution operation of signals at the plurality of frequency bands can be completed through the same power divider. Therefore, the system greatly reduces the number of needed elements, simplifies the circuit, and reduces the layout difficulty under the condition that a PCB space is crowded increasingly. Meanwhile, the system greatly reduces the number of receiving ports of a radio frequency chip, and reduces the design complexity of the radio frequency chip.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a mobile terminal and its receiving signal processing system and method. Background technique [0002] LTE (Long Term Evolution, long-term evolution) is a wireless data communication technology standard. It uses new technologies and modulation methods to improve the data transmission capacity and data transmission speed of wireless networks, and provides users with better data services. It is regarded as Mainstream technology evolving from 3G to 4G. At present, LTE has been supported by many mainstream operators in the world, and my country has officially started commercial use of LTE networks. [0003] In order to further improve the throughput rate of LTE data transmission, in the evolved version of the LTE standard, LTE-A (LTE-Advanced), the Carrier Aggregation (Carrier Aggregation, CA) technology is introduced, by combining multiple independent bandwid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L25/03H04B1/40
Inventor 黄文韬谢善谊赵国涛
Owner SPREADTRUM COMM (SHANGHAI) CO LTD