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Data forwarding method, relay equipment and wireless communication system

A technology of relay equipment and forwarding method, which is applied in the field of wireless communication, can solve problems such as complex algorithm implementation, and achieve the effects of increasing system capacity, improving throughput, and reducing demodulation complexity

Inactive Publication Date: 2010-07-14
FUJITSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, although relay devices and / or methods using constellation diagram rearrangement technology are disclosed in a few schemes, the algorithm is relatively complicated to implement

Method used

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  • Data forwarding method, relay equipment and wireless communication system
  • Data forwarding method, relay equipment and wireless communication system
  • Data forwarding method, relay equipment and wireless communication system

Examples

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Embodiment Construction

[0032] Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings. In the interest of clarity and conciseness, not all features of an actual implementation are described in this specification. It should be understood, however, that in developing any such practical embodiment, many implementation-specific decisions must be made in order to achieve the developer's specific goals, such as meeting those constraints related to the system and business, and those Restrictions may vary from implementation to implementation. Moreover, it should also be understood that development work, while potentially complex and time-consuming, would at least be a routine undertaking for those skilled in the art having the benefit of this disclosure.

[0033] Here, it should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only the device structure and / or processing steps closely related to the ...

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Abstract

The invention discloses a data forwarding method, relay equipment and a wireless communication system. The data forwarding method comprises the following steps: receiving data from a source device; demodulating and decoding the received data; encoding the decoded data; remapping a modulated constellation diagram of the source device into a modulated constellation diagram with lower modulating order; performing order-reduced modulation on the encoded data according to the remapped modulated constellation diagram; and transmitting the modulated data to a target device. Due to the use of the data forwarding method and / or the relay equipment, the system capacity can be fully improved.

Description

technical field [0001] The present invention generally relates to the field of wireless communication, and in particular relates to a data forwarding method, a relay device and a wireless communication system using relay technology and / or cooperation (cooperation) technology. Background technique [0002] In a conventional cellular-based wireless communication system, a base station (BS) and a user equipment (UE) communicate directly. In this communication scheme, if the user equipment is far away from the base station, for example, the user equipment is on the edge of the cell, the throughput of the user equipment will be small due to the large attenuation related to the distance; and when the user equipment is far away from the base station When it is closer, the user equipment can often obtain a larger throughput due to smaller attenuation. For example, figure 1 A simple link diagram of a conventional single-cell cellular communication system is shown. [0003] In orde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/02H04W40/22H04L1/00
Inventor 梁生宝周华张杰张元涛
Owner FUJITSU LTD
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