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
CN101778445AInactive Publication Date: 2010-07-14FUJITSU LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
FUJITSU LTD
Publication Date
2010-07-14
Estimated Expiration
Not applicable · inactive patent

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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.
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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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