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Methods for network throughput enhancement

A point-to-point, sub-range technology, applied in the field of communication systems, which can solve the problems of low frequency spectrum usage and the existence of unused frequency bands

Inactive Publication Date: 2014-05-28
AGENCY FOR SCI TECH & RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This approach results in low spectrum utilization and unused frequency bands

Method used

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  • Methods for network throughput enhancement
  • Methods for network throughput enhancement
  • Methods for network throughput enhancement

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Embodiment Construction

[0036] The term frequency band as used herein may denote a predetermined contiguous range of frequencies available for signal transmission. In the context of this description, frequency bands are generally referred to by their associated frequency band numbers.

[0037] Also, the term frequency channel may denote a combination of one or more frequency bands, and the combination may also be used for signal transmission. Herein, a channel may or may not have a contiguous range of frequencies. In the context of this specification, channels are generally referred to by their associated channel numbers.

[0038] Also, the term band group may mean a group of frequency bands. A frequency band group may or may not be used for signaling. It should be noted that a channel may have the same frequency band as a frequency band group.

[0039] In addition, the term Time-Frequency Code (TFC) may include frequency hopping patterns, some of which hop between frequency bands, and some of wh...

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Abstract

A method for transmitting OFDM symbols by a plurality of ad-hoc radio communication devices in an ad-hoc radio communication devices' group is provided. The method includes a first ad-hoc radio communication device of the ad-hoc radio communication devices' group transmitting a first OFDM symbol in a first frequency sub-range of a frequency range selected for transmission in accordance with a frequency hopping pattern, the frequency range comprising a plurality of frequency sub-ranges, and in the same transmission time period, a second ad-hoc radio communication device of the ad-hoc radio communication devices' group transmitting a second OFDM symbol in a second frequency sub-range of the frequency range, wherein the second frequency sub-range is different from the first frequency sub-range.

Description

[0001] This application claims priority to US Provisional Application No. 60 / 973,591, filed September 19, 2007, which is hereby incorporated by reference in its entirety. technical field [0002] The present invention relates to the field of communication systems, such as ad-hoc radio communication systems. As an example, embodiments relate to methods of transmitting data, such as OFDM symbols. Background technique [0003] An ad hoc radio communication group basically comprises a plurality of ad hoc radio communication devices, wherein the communication between these devices is self-organized. The plurality of devices can find each other within a range forming a communication group, and within the communication group, the devices can communicate with each other without going through a central control. [0004] Orthogonal Frequency Division Multiplexing (OFDM) is a technology widely used in point-to-point radio communication systems. OFDM is a multicarrier transmission tec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04B1/713
CPCH04L5/0044H04B1/713
Inventor 艾南斯·苏布拉玛南彭晓明陈保善
Owner AGENCY FOR SCI TECH & RES