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Interference Cancellation Radio Receiver

A radio receiver and interference removal technology, applied in equalizers, electrical components, baseband system components, etc., can solve problems such as radio receiver interference limitations

Inactive Publication Date: 2017-05-03
APPLE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The performance of a radio receiver may be limited, at least in certain cases, by interference from neighboring cells

Method used

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  • Interference Cancellation Radio Receiver
  • Interference Cancellation Radio Receiver
  • Interference Cancellation Radio Receiver

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0050] In view of the implementation, the serving cell detector 304 may be similar to the interfering cell detector 301. That is, the serving cell detector 304 may include a serving cell despreader (not shown) configured to despread the serving cell detector input signal 304a and / or configured to generate demodulated serving cell symbols (such as hard or soft detection). Symbol) serving cell demodulator (not shown). The serving cell detector may have high performance and / or high throughput because interference has been removed from the serving cell detector input signal 304a by the serving cell interference removal unit 303 before detection.

[0051] Image 6 An exemplary embodiment of the radio receiver device 600 is illustrated. The radio receiver device 600 may be the same as the radio receiver device 300, except that it may further include a serving cell detector 601, a serving cell synthesizer 602, and an interference cell interference removal unit 603. In addition, it may...

example 1

[0107] Example 1 is a radio receiver device, including: a serving cell detector configured to generate a detected serving cell signal based on a serving cell detector input signal; a first interfering cell detector configured to be based on a first interfering cell The detector input signal generates the detected first interfering cell signal; the first interfering cell synthesizer is configured to generate a synthesized first interfering cell signal based on the detected first interfering cell signal; and the serving cell interference removal unit is configured to It is configured to remove the synthesized first interfering cell signal from the serving cell signal to generate the serving cell detector input signal.

[0108] In Example 2, the subject matter of Example 1 may optionally include: wherein the first interfering cell detector includes a first interfering cell demodulator, the first interfering cell demodulator being configured to generate a demodulated The first interf...

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PUM

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Abstract

The present invention relates to interference canceling radio receivers. A radio receiver device comprising a serving cell detector configured to generate a detected serving cell signal based on a serving cell detector input signal. The radio receiver device further comprises: a first interfering cell detector configured to generate a detected first interfering cell signal based on a first interfering cell detector input signal; and a first interfering cell synthesizer configured to generate a detected first interfering cell signal based on The detected first interfering cell signal generates a composite first interfering cell signal. The serving cell interference removal unit is configured to remove said synthesized first interfering cell signal from a serving cell signal to generate said serving cell detector input signal.

Description

Technical field [0001] The embodiments described herein generally relate to the field of radio communication, and more specifically relate to interference cancellation techniques in radio receivers of radio networks, especially cellular radio networks. Background technique [0002] The performance of the radio receiver may be limited by interference from neighboring cells, at least in certain situations. Reducing this interference can improve the signal-to-noise ratio at the receiver and can improve data throughput. The method to reduce the interference of adjacent cells is to use a joint detection scheme or a linear interference-aware equalizer, such as a linear type 3i interference-aware chip-level equalizer. Summary of the invention [0003] According to a first aspect of the present invention, there is provided a radio receiver device including: a serving cell detector configured to generate a detected serving cell signal based on an input signal of the serving cell detector;...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/10
CPCH04J11/004H04J11/0056H04L25/03038H04L2025/03477H04L27/01H04L25/0212H04L25/022H04L25/0242H04L5/0048H04L5/0023H04L25/024
Inventor C.法贝尔A.森斯特M.齐默曼L.温克勒
Owner APPLE INC