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Data receiving method and device

A data receiving method and data technology, applied in the field of mobile communication, can solve problems such as filtering, useful signal interference, and system power consumption increase, and achieve the effect of reducing system power consumption and improving signal quality

Active Publication Date: 2017-07-04
SANECHIPS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In a multi-channel carrier aggregation data receiving system, the increase in the number of carriers will directly lead to an increase in the number of channels, resulting in a significant increase in system power consumption
[0005] In a multi-channel carrier aggregation data receiving system, a blocker is a redundant channel with significant signal energy, such as image 3 It shows that the frequency of Blocker is close to the actual required channel frequency, therefore, it cannot be filtered out directly by filters in the channel; Blocker is the main reason for using multi-channel receive links in the scenario of in-band non-continuous carrier aggregation; when When the power of the Blocker is high, the data in the Blocker enters the channel together with the actual required channel, which will cause interference to the useful signal and reduce the signal quality of the actual required channel

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] For a dual-carrier carrier aggregation system, the detailed processing flow of a data receiving method in Embodiment 1 of the present invention is as follows Figure 5 shown, including the following steps:

[0047] Step 201, performing channel configuration;

[0048] Specifically, a schematic structural diagram of a carrier aggregation system, such as Figure 6 As shown, the carrier aggregation system first determines the number of points of the FFT operation according to the bandwidth, and after receiving the receiving command of the baseband chip, configures the low noise amplifier (Low Noise Amplifier, LNA1) to the gain range of single-channel receiving to ensure possible Blocker It will not saturate LNA1; then turn on the front switch of LNA1 and configure LO1 as F1 0 =(f1+f4) / 2, turn on Mixer1 and filter Filter1, and configure Mixer1 and Filter1 to work in single-channel mode, configure PGA1 gain to the single-channel linear gain range, and enable ADC1. At this t...

Embodiment 2

[0059] For a three-carrier carrier aggregation system, the detailed processing flow of the data receiving method in Embodiment 2 of the present invention is as follows Figure 7 shown, including the following steps:

[0060] Step 301, performing channel configuration;

[0061] Specifically, the carrier aggregation system first determines the number of FFT calculation points according to the bandwidth, and configures the receiving channel to be in a single-channel receiving mode after receiving a receiving command from the baseband chip.

[0062] Step 302, performing an FFT operation on the subcarrier signal;

[0063] Specifically, the FFT module performs FFT calculation on the sub-carrier signal after the ADC, obtains the calculation result, and stores the calculation result in RAM; after the calculation is completed, it notifies the MCU through an interrupt, and the MCU uses an algorithm to realize the acquisition of sub-carrier 1. The start address address1 and end address...

Embodiment 3

[0076] For the four-carrier carrier aggregation system, the detailed processing flow of the data receiving method in Embodiment 3 of the present invention is as follows Figure 8 shown, including the following steps:

[0077] Step 401, performing channel configuration;

[0078] Specifically, the carrier aggregation system first determines the number of FFT calculation points according to the bandwidth, and configures the receiving channel to be in a single-channel receiving mode after receiving a receiving command from the baseband chip.

[0079] Step 402, performing FFT on the subcarrier signal;

[0080] Specifically, the FFT module performs FFT calculation on the sub-carrier signal after the ADC, obtains the calculation result, and stores the calculation result in RAM; after the calculation is completed, it notifies the MCU through an interrupt, and the MCU uses an algorithm to realize the acquisition of sub-carrier 1. The start address address1 and end address address2 of t...

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Abstract

The embodiment of the invention discloses a data receiving method. The data receiving method comprises the following steps: acquiring accumulated data generated after subcarrier signals are subjected to fast Fourier transformation (FFT) calculation; acquiring data of blocked channels between adjacent subcarrier signals; comparing the data of the blocked channels with the size of the accumulated data generated after corresponding subcarrier signals are subjected to the FFT calculation to obtain a comparison result; and determining a data receiving way of subcarriers according to the comparison result. The embodiment of the invention also discloses a data receiving device.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a data receiving method and device. Background technique [0002] Carrier aggregation technology is the key technology of the enhanced Long Term Evolution-Advanced (LTE-A) system. It can well aggregate multiple carriers into a wider spectrum, and at the same time, it can also combine some discontinuous spectrum Fragments are aggregated together; in order to meet the needs of single-user peak rate and system capacity improvement, one of the most direct methods is to increase the system transmission bandwidth; for peak rate requirements, there can be 2 to 5 subcarriers to achieve a maximum transmission bandwidth of 100M . [0003] Three carrier aggregation application scenarios are defined in the 3rd Generation Partnership Project (The 3rd Generation Partnership Project, 3GPP) protocol version 10, such as figure 1 As shown, including: intra-band continuous ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00
CPCH04L5/0001H04L5/001H04L5/0058H04L5/006H04L5/00
Inventor 张小磊
Owner SANECHIPS TECH CO LTD