Method and apparatus of preprocessing for frequency domain signal processing

a frequency domain and signal processing technology, applied in the field of signal processing, can solve the problems of high bit error rate (ber) in the recovery of the transmitted sequence at the receiver, interference in the provision of reliable information at high data rate, inter symbol interference (isi) affecting reliable transmission,

Inactive Publication Date: 2007-04-19
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This approach enhances the reliability of data transmission by minimizing interference, improving channel estimation, and simplifying signal processing, thereby reducing bit error rates and increasing the efficiency of wireless communication systems.

Problems solved by technology

One major obstacle associated with providing reliable information at high data rates is interference.
More specifically, inter symbol interference (ISI) affect reliable transmission.
Unless the ISI is handled properly, it can lead to high bit error rates (BER) in the recover of the transmitted sequence at the receiver.
Unreliable transmission can be caused by distorted signals through fading channels before the signals reach the receiving end.

Method used

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  • Method and apparatus of preprocessing for frequency domain signal processing
  • Method and apparatus of preprocessing for frequency domain signal processing
  • Method and apparatus of preprocessing for frequency domain signal processing

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Embodiment Construction

[0039] Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

[0040] Referring to FIG. 1, a wireless communication network architecturel is illustrated. A subscriber uses a mobile station (MS) 2 to access network services. The MS 2 may be a portable communications unit, such as a hand-held cellular phone, a communication unit installed in a vehicle, or a fixed-location communications unit.

[0041] The electromagnetic waves for the MS 2 are transmitted by the Base Transceiver System (BTS) 3 also known as node B. The BTS 3 consists of radio devices such as antennas and equipment for transmitting and receiving radio waves. The BS 6 Controller (BSC) 4 receives the transmissions from one or more BTS's. The BSC 4 provides control and management of the radio transmissions fr...

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Abstract

A method of transmitting at least one packet in a wireless mobile communication system is disclosed. More specifically, the method includes transmitting at least one pilot symbol, at least one data symbol, and at least one null symbol, wherein the at least one null symbol is transmitted between transmission of the pilot symbol and the data symbol.

Description

[0001] This application claims the benefit of U.S. Provisional Application No. 60 / 722,018, filed on Sep. 28, 2005, which is hereby incorporated by reference,BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to a method of signal processing, and more particularly, to a method and an apparatus of preprocessing for frequency domain signal processing. [0004] 2. Discussion of the Related Art [0005] In the world of cellular telecommunications, those skilled in the art often use the terms 1G, 2G, and 3G. The terms refer to the generation of the cellular technology used. 1G refers to the first generation, 2G to the second generation, and 3G to the third generation. [0006] 1G refers to the analog phone system, known as an AMPS (Advanced Mobile Phone Service) phone systems. 2G is commonly used to refer to the digital cellular systems that are prevalent throughout the world, and include CDMAOne, Global System for Mobile communications (GSM), and ...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): H04B7/216H04B1/707
CPCH04B1/7105H04B1/712H04B2201/70701H04B2201/709727H04J13/00H04L25/022H04L25/0226H04B1/707H04B2201/70719
InventorWANG, SHU
OwnerLG ELECTRONICS INC