Method and apparatus for transmitting uplink signal, and method and apparatus for generating uplink signal in communication system

A link and signal technology, applied in the field of uplink signal generation, which can solve problems such as user interference

Inactive Publication Date: 2009-09-16
ELECTRONICS & TELECOMM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Correspondingly, the channel delay spread of any user can be larger than the cyclic shift in a cellular communication environment, and thus interference between users may occur

Method used

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  • Method and apparatus for transmitting uplink signal, and method and apparatus for generating uplink signal in communication system
  • Method and apparatus for transmitting uplink signal, and method and apparatus for generating uplink signal in communication system
  • Method and apparatus for transmitting uplink signal, and method and apparatus for generating uplink signal in communication system

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Embodiment Construction

[0034] In the following detailed description, only certain exemplary embodiments of the present invention have been shown and described, simply by way of illustration. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not restrictive. Throughout the specification, like reference numerals refer to like elements.

[0035] Throughout the following detailed description and claims, unless expressly stated to the contrary, the word "comprise / include" or variations such as "comprises / includes" or "comprising / including" will be understood to imply The stated elements are included, but any other elements are not excluded. Each module is a unit for processing at least one function or operation, which can be realized by hardware, software, or a combination of hard...

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Abstract

When a terminal generates an uplink signal in a communication system, the terminal hops a sequence for differentiating itself from another terminal with time. The terminal generates the uplink signal by multiplying a transmission symbol by a sequence of a transmission time corresponding to the transmission symbol.

Description

technical field [0001] The present invention relates to methods and devices for transmitting uplink signals, and methods and devices for generating uplink signals in a communication system. Background technique [0002] In a communication method based on Orthogonal Frequency Division Multiplexing (OFDM), since different users use different frequencies for data channels, there is no interference between different users. The method for using different frequencies for different users is called Frequency Division Multiplexing (FDM). However, Code Division Multiplexing (CDM), which identifies users by using codes, is suitable for reference signals or control channels. CDM is superior to FDM because CDM can efficiently use resources for reference signals or control channels. CDM is classified into time-domain CDM that is directly spread in units of OFDM symbols, and frequency-domain CDM that is spread in the frequency domain within one OFDM symbol. [0003] In frequency-domain ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/26
Inventor 朴亨根金一圭高祚张甲石李孝石金永勋方承灿
Owner ELECTRONICS & TELECOMM RES INST
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