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Method and apparatus for interference cancellation in a hybrid satellite-terrestrial network

An interference elimination and ground technology, applied in satellite broadcast reception, broadcast information relay, rebroadcast broadcast devices between broadcast stations, etc., can solve the problem of expensive and inaccurate auxiliary network

Inactive Publication Date: 2018-02-02
种源资产集团有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, auxiliary networks such as these can be relatively expensive and / or inaccurate

Method used

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  • Method and apparatus for interference cancellation in a hybrid satellite-terrestrial network
  • Method and apparatus for interference cancellation in a hybrid satellite-terrestrial network
  • Method and apparatus for interference cancellation in a hybrid satellite-terrestrial network

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Embodiment Construction

[0020] Various example embodiments of the invention will now be described more fully with reference to the accompanying drawings in which some example embodiments of the invention are shown.

[0021] Detailed illustrative embodiments of the invention are disclosed herein. However, specific structural and functional details disclosed herein are merely representative for purposes of describing example embodiments of the present invention. This invention may, however, be embodied in many alternative forms and should not be construed as limited to only the embodiments set forth herein.

[0022] It will be understood that although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the ...

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Abstract

In a method for canceling interference caused by terrestrial transmitters at a satellite receiver in a hybrid satellite-terrestrial network, the satellite receiver is based on a reference terrestrial signal from said terrestrial transmitter and received over-the-air OTA signal to generate an interference cancellation signal. The satellite receiver then cancels the interference caused by the terrestrial transmitter by combining the interference cancellation signal with the received OTA signal. The interference cancellation signal is a modified version of the reference terrestrial signal.

Description

[0001] Related Application Cross Reference [0002] This application claims priority under 35 U.S.C. §119(e) to U.S. Provisional Application No. 61 / 597,993, filed February 13, 2012, which is hereby incorporated by reference in its entirety . Background technique [0003] A single frequency network (SFN) is a broadcast network in which several transmitters simultaneously transmit the same signal on the same frequency channel. One type of conventional SFN is called hybrid satellite-terrestrial SFN. Defined in the Digital Video Broadcasting (DVB) standard "Framing Structure, Channel Coding and Modulation for Handheld Device Satellite Service (SH) below 3 GHz" (ETSI EN 302 583 V1.1.2 (February 2010)) An exemplary hybrid SFN. [0004] In these types of networks, in order for the terrestrial transmitters to properly generate and transmit the terrestrial signals, the terrestrial transmitters typically require certain information contained in the satellite signals. [0005] In co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04H20/67
CPCH04H40/90H04H20/06H04H20/22H04H20/72H04H20/74H04H20/67
Inventor 弘·江于亮凯
Owner 种源资产集团有限责任公司