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Method and apparatus for dummy sequence insertion in data modulation

A technology of data modulation and data sequence, applied in encryption devices with shift register/memory, adjusting transmission mode, modulating carrier system, etc., can solve problems such as CP-OFDM spectrum leakage and peak-to-average ratio increase

Pending Publication Date: 2022-01-04
ZTE CORP
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Moreover, both CP-OFDM spectral leakage and peak-to-average ratio increase when the frequency band operates in the high-frequency range

Method used

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  • Method and apparatus for dummy sequence insertion in data modulation
  • Method and apparatus for dummy sequence insertion in data modulation
  • Method and apparatus for dummy sequence insertion in data modulation

Examples

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Embodiment Construction

[0023] Various exemplary embodiments of the present invention are described below with reference to the accompanying drawings to enable those of ordinary skill in the art to make and use the present invention. After reading the present disclosure, it will be apparent to those of ordinary skill in the art that various changes or modifications to the examples described herein can be made without departing from the scope of the invention. Accordingly, the invention is not limited to the exemplary embodiments and applications described or illustrated herein. In addition, the specific order or hierarchy of steps in the methods disclosed herein are exemplary methods only. Based upon design preferences, the specific order or hierarchy of steps in the disclosed methods or processes may be rearranged while remaining within the scope of the invention. Accordingly, those of ordinary skill in the art will understand that the methods and techniques disclosed herein present the various ste...

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Abstract

A method and apparatus for inserting dummy sequences during data modulation in a communication system, according to channel status, link status, and the like, is disclosed. In one embodiment, a method for data modulation by a wireless communication node of a wireless communication system, includes: inserting at least one first dummy sequence to a first data sequence in a first data block; and inserting at least one second dummy sequence to a second data sequence in a second data block; wherein a first length of a first dummy sequence is different from a second length of a second dummy sequence, and wherein the second dummy sequence includes the first dummy sequence or is included in the first dummy sequence.

Description

technical field [0001] The present disclosure generally relates to wireless communication, and more particularly, to a method and apparatus for inserting a dummy sequence during data modulation in a communication system according to channel state and link state, etc. Background technique [0002] 4G LTE (4th Generation Long Term Evolution) adopts Orthogonal Frequency Division Multiplexing (OFDM) technology, and resources in the time-frequency domain composed of subcarriers and OFDM symbols form radio resources of the LTE system in the time-frequency domain. A cyclic prefix (CP) is used in OFDM to combat multipath delays. However, since the CP does not carry any useful data, the addition of the CP increases radio resource overhead. This resource overhead problem caused by CP can become more severe due to the increased requirement on subcarrier spacing and reduced symbol length, especially when the frequency band operates in the high frequency range (eg > 24.25 GHz). Furt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/26H04L9/06
CPCH04L27/2636H04L27/2605H04L27/2646H04L27/2614H04L1/0008H04L1/0026H04J13/0062H04L1/1642H04L27/2634
Inventor 辛雨徐俊暴桐
Owner ZTE CORP
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