Relay communication method based on LTE

A relay communication, relay station technology, applied in the direction of location diversity, radio transmission system, electrical components, etc.

Inactive Publication Date: 2015-04-01
FUJIAN NORMAL UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Although LTE technology has used 4G technologies such as MIMO and OFDM, it has not yet fully met the technical indicators required in IMT-Advanced proposed by the International Telecommunication Union (ITU). For this reason, 3GPP proposed LTE based on LTE. -Advanced, the LTE-Advanced system supports the peak downlink rate of lGbit / s and the peak uplink rate of 500Mbit / s. It is fully compatible with LTE and proposes several key technologies to improve the performance of LTE-Advanced, even exceeding the technical indicators of ITU , including carrier aggregation, coordinated multi-point transmission, relay transmission, multi-antenna enhancement and other technologies

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  • Relay communication method based on LTE
  • Relay communication method based on LTE
  • Relay communication method based on LTE

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Embodiment 1

[0065] An LTE relay system supporting multi-point coordinated transmission involved in the present invention, the system architecture diagram is as follows image 3 As shown, the system includes near-end equipment and relay equipment; among them, the near-end equipment is responsible for baseband signal processing, deployed in the base station equipment room, including transmission unit, protocol unit, near-end codec unit, near-end baseband interface unit and near-end central unit, such as Figure 4 shown. The near-end device is mainly responsible for baseband signal processing, which is used for signaling processing and channel estimation. The near-end central unit controls the baseband signal according to the fixed relay cooperative transmission algorithm, and the downlink baseband signal is passed through the near-end baseband interface unit. The optical fiber is transmitted to the relay equipment, and at the same time, the uplink baseband signal transmitted by each relay ...

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Abstract

The invention relates to the field of wireless communication, particularly to a relay communication method based on LTE (Long Term Evolution). The method comprises the following steps: processing a baseband signal through a first relay station, to be specific, performing decoding, analog-digital conversion and signal conversion comprising converting the digital signal to an intermediate frequency signal and converting the intermediate frequency signal to a radio frequency signal; sending the signal to a terminal which sends the baseband signal to a near-end device through the first relay station, so as to implement link return, wherein the first relay station has an encoding function and a decoding function. The first relay station has the forwarding function, so that the quality of the transmission link can be greatly improved through relaying and forwarding between the relay stations; meanwhile, channel information feedback between the relay stations is implemented and correlation of the relay stations is considered about, so as to reduce interference to synergistic transport streams, increase the signal to noise ratio of the relay stations, and improve the link capacity.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a method for relaying communication based on LTE. Background technique [0002] Ten years ago, 3GPP proposed the concept of LTE and started the related research work of LTE in 3GPP. LTE technology has the advantages of high data rate, low delay, all IP packet transmission and backward compatibility, etc., and has become the technical standard of the next generation mobile communication network. Although LTE technology has used 4G technologies such as MIMO and OFDM, it has not yet fully met the technical indicators required in IMT-Advanced proposed by the International Telecommunication Union (ITU). For this reason, 3GPP proposed LTE based on LTE. -Advanced, the LTE-Advanced system supports the peak downlink rate of lGbit / s and the peak uplink rate of 500Mbit / s. It is fully compatible with LTE and proposes several key technologies to improve the performance of LTE-Ad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/155
CPCH04B7/026H04B7/15592
Inventor 蒋俊贞林玮
Owner FUJIAN NORMAL UNIV
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