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Demodulation method, device, terminal and system

A demodulation method and demodulation device technology, applied in the direction of synchronization device, transmission system, digital transmission system, etc., can solve the problems of high demodulation complexity, increased power consumption, etc., to reduce assumptions, reduce power consumption, and reduce solution The effect of tuning complexity

Active Publication Date: 2017-10-20
BAICELLS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] The purpose of the present invention is to provide a demodulation method, device, terminal and system to solve the problem that there are often multiple assumptions in the demodulation of information including CRS and ePBCH in the unlicensed frequency band, resulting in high demodulation complexity, The problem of increased power consumption

Method used

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  • Demodulation method, device, terminal and system
  • Demodulation method, device, terminal and system
  • Demodulation method, device, terminal and system

Examples

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no. 1 example

[0045] Such as figure 1 As shown, the first embodiment of the present invention provides a demodulation method, wherein the demodulation method includes the following steps 101 to 104, which are described in detail below.

[0046] Step 101: Obtain communication information of a cell.

[0047] In the embodiment of the present invention, the demodulation method is applied to, for example, mobile phone terminals, handheld devices, wireless modems, etc., and may also be applied to other equipment capable of sending or receiving wireless signals. The communication information is specifically information on the entire bandwidth obtained by a terminal working in an unlicensed frequency band from a corresponding cell.

[0048] Wherein, the communication information includes, for example, synchronization signals, reference signals, broadcast signals, control signals, and data signals.

[0049] Step 102: Perform a blind solution on the synchronization signal in the communication information to...

no. 2 example

[0059] Such as figure 2 As shown, the second embodiment of the present invention provides a demodulation method, including the following steps 201 to 205, which are described in detail below.

[0060] Step 201: Obtain communication information of a cell.

[0061] In the embodiment of the present invention, the demodulation method is applied to, for example, mobile phone terminals, handheld devices, wireless modems, etc., and may also be applied to other equipment capable of sending or receiving wireless signals. Wherein, the communication information is specifically information on the entire bandwidth obtained from a corresponding cell by a terminal working in an unlicensed frequency band.

[0062] Step 202: Perform a blind solution on the synchronization signal in the communication information to obtain a blind solution result.

[0063] In the embodiment of the present invention, the synchronization signal mainly includes a primary synchronization signal PSS, a secondary synchroniza...

no. 3 example

[0074] Such as image 3 As shown, the third embodiment of the present invention provides a demodulation method, including the following steps 301 to 304, which are described in detail below.

[0075] Step 301: Obtain communication information of a cell.

[0076] In the embodiment of the present invention, the demodulation method is applied to, for example, mobile phone terminals, handheld devices, wireless modems, etc., and may also be applied to other equipment capable of sending or receiving wireless signals. Wherein, the communication information is specifically information on the entire bandwidth obtained from a corresponding cell by a terminal working in an unlicensed frequency band.

[0077] Step 302: Perform blind decoding on the synchronization signal in the communication information to obtain a blind solution result, and at the same time, perform decoding on the CRS in the communication information according to the scrambling method corresponding to the subframe number of th...

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Abstract

The invention provides a demodulation method, device, terminal and system. The demodulation method includes acquiring communication information of a cell; performing blind resolution on synchronization signals in the communication information and acquiring a blind resolution result; according to the blind resolution result, determining time scope information carried by the communication information; and performing demodulation on the communication information according to the time scope information. According to the scheme provided by the invention, acquired prior information can be utilized in aid for determining specific conditions of the communication information of the cell, so that hypothesis during the demodulation process of the communication information is reduced, demodulation complexity is reduced and power consumption is reduced.

Description

Technical field [0001] The present invention relates to the field of wireless communication technology, in particular to a demodulation method, device, terminal and system. Background technique [0002] A mobile communication system refers to a system in which operators deploy wireless access network equipment (such as base stations) and core network equipment (such as home location registers, home location registers, HLR), etc., to provide communication services for user terminals (such as mobile phones). Among them, the mobile communication system has experienced the first, second, third and fourth generations. The first-generation mobile communication system refers to the original analog, voice-only cellular phone standard, which mainly uses analog technology and frequency division multiple access (Frequency Division Multiple Access, FDMA) access methods; the second-generation mobile communication system Digital technology has been introduced, network capacity has been improv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
CPCH04L1/0038H04J11/0073H04J11/0076H04W56/001H04W48/16Y02D30/70H04L5/005H04W76/11H04J11/0069H04L5/0048H04W72/0446H04W72/0466
Inventor 云翔
Owner BAICELLS TECH CO LTD
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