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Method for solving radio frequency mutual interference of multi-mode multi-connected user equipment

A user equipment, multi-connection technology, applied in electrical components, wireless communication, network planning and other directions, can solve problems such as low cost, achieve low-cost radio frequency mutual interference problems, reduce local interference signals, and achieve the effect of simple implementation

Inactive Publication Date: 2012-05-02
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the fact that the current industry lacks an effective and low-cost general method for solving M 3 L-UE radio frequency mutual interference, the present invention proposes A General Method for Solving M 3 L-UE RF Mutual Interference in Receiver RF Front-End

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  • Method for solving radio frequency mutual interference of multi-mode multi-connected user equipment
  • Method for solving radio frequency mutual interference of multi-mode multi-connected user equipment
  • Method for solving radio frequency mutual interference of multi-mode multi-connected user equipment

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Embodiment Construction

[0029] Hereinafter, the present invention will be described in detail based on the radio frequency mutual interference problem of a DCS / LTE dual-mode dual-connection mobile phone as an example. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, not to limit the present invention.

[0030] Taking a DCS / LTE dual-mode dual-connection mobile phone as an example, the specific steps are as follows:

[0031] 1. Establish a complete downlink LTE communication link. Specifically:

[0032] 1.1 Constructing the transmitter of the downlink LTE communication system

[0033] The LTE mode transmitter in the DCS / LTE dual-mode dual-connection mobile phone such as figure 1 As shown, the transmitter processing process includes bit source generation, baseband processing, radio frequency modulation, antenna transmission, etc.

[0034] Construct the channel of the downlink LTE communication system

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Abstract

The invention discloses a method for solving the radio frequency mutual interference of multi-mode multi-connected user equipment, which comprises the following steps of: constructing an interfering-mode transmitter and a complete interfered-mode communication link; addapplying an local interfering-mode local interference signal to the interfered-mode communication link; and additionally leading an interfering path from an interference signal branch by using a power splitter, wherein interference small signals on the led path are subjected to phase shift, amplification, and the like, then, are added with signals on an original interfering path, and finally are received by an interfered receiver. The method disclosed by the invention has the advantages of simplicity and easiness in implementation, general purpose and low cost in manufacture.

Description

technical field [0001] The invention relates to a method for solving multi-mode multi-connection user equipment (UE) radio frequency mutual interference. This method is completed at the front end of the radio frequency, belongs to active isolation, and is especially suitable for multiple applications such as GSM / DCS / TD-SCDMA / LTE in the future. The problem of radio frequency mutual interference in multi-mode multi-connection mobile terminals. Background technique [0002] In order to make more effective use of existing spectrum resources and promote the gradual commercial use of LTE, multi-mode multi-link mobile terminals (Multi-mode Multi-link UE, M 3 L-UE) has received increasing attention. For example, 3GPP has defined Type A and Type B terminals as M in the new version 3 L-UE. Thanks to M 3 L-UE is an intelligent mobile terminal with multiple wireless links activated at the same time, and will face a large number of software and hardware technology and produc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/14
Inventor 高安明江勇果敢彭宏利毛军发
Owner SHANGHAI JIAO TONG UNIV