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Communication system

A wireless communication system, signal technology, applied in the direction of transmission system, wireless communication, radio transmission system, etc.

Inactive Publication Date: 2010-06-09
FUJITSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0020] However, even when predictions are based on more accurate reflections of path loss parameters that might be encountered in the real world, simulations of multi-hop systems still exhibit unexpectedly poor correspondence between predicted and simulated payoffs

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Embodiment Construction

[0099] Now, refer to image 3 A to illustrate an example of an algorithm implementing an embodiment of the first aspect of the present invention, wherein the source device includes a user equipment (UE), the intermediate device includes a regenerative relay node (RN), and the base station includes a base station (NB). The base station continuously monitors the RSS and derives the index of the RSS and the difference from the target SRS. The base station is equipped with index deviation detection means for detecting changes in one or both of these indexes. The base station is also equipped with control means having first computing means according to an embodiment of the invention.

[0100] In order to be able to explicitly calculate the new RN transmission power after the index derived by the NB changes, the control device in the NB needs the information of the current RN transmission power. Two techniques can be used to obtain this information: 1) NB has information of RN's i...

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Abstract

The present application relates to a wireless communication system and related methods and apparatuses for transmitting a signal from a source apparatus to a destination apparatus, via at least one intermediate apparatus. In particular, the present invention relates to techniques which seek to improve the throughput of data in multi-hop communication systems.

Description

[0001] This application is a divisional application of the invention patent application with the application number 200610095605.9, the application date is June 19, 2006, and the invention name is "communication system". technical field [0002] The present invention relates to a wireless communication system and related method for transmitting a signal from a source device to a destination device via at least one intermediate device. More specifically, the present invention relates to techniques aimed at improving data throughput in multi-hop communication systems. Background technique [0003] It is known that radiocommunication signals are weakened by propagation loss or "path loss" that occurs due to scattering or absorption as they propagate through space. Factors that affect the path loss between the transmitter and receiver include: transmitter antenna height, receiver antenna height, carrier frequency, clutter type (urban, suburban, rural), such as height, density, s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/46H04W52/24H04W52/14
CPCH04W52/146H04W52/46H04W52/248Y02B60/50H04B7/2606Y02D30/70
Inventor 迈克尔·约翰·哈特
Owner FUJITSU LTD
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