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Method and device for transmitting uplink data by using relay station

A data transmission method and relay station technology, applied in the field of uplink data transmission method and device based on the relay station, can solve the problems of data loss, failure of signal combination of the relay station, etc., and achieve the effect of avoiding omission

Inactive Publication Date: 2011-04-27
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Reserving GP at the front end of the subframe in related technologies will cause the uplink transmission of the relay station to fail to combine signals with the user's uplink transmission, and the offset of the subframe will cause the adjacent uplink subframes of the user to overlap, resulting in data loss Therefore, the main purpose of the present invention is to provide an improved relay station-based uplink data transmission method and device to solve at least one of the above-mentioned problems

Method used

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  • Method and device for transmitting uplink data by using relay station
  • Method and device for transmitting uplink data by using relay station
  • Method and device for transmitting uplink data by using relay station

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Embodiment Construction

[0030] Functional Overview

[0031] Embodiments of the present invention provide a relay station-based uplink data transmission method and device. The design concept is as follows: when the relay station performs uplink data reception and uplink data transmission through the uplink relay subframe, it uses the existing measurement reference signal (SoundingReference Signal, SRS for short) subframe structure to realize the radio frequency conversion between uplink transmission and reception of the relay station, because the user does not transmit data signals on the last SC-FDMA symbol of the SRS subframe, so if the relay station uplink Access subframe If this symbol is used as a guard interval, the reception of data signals will not be missed, and if the relay station uses this symbol as a guard interval in the uplink Backhaul subframe, the relay station can combine signals with the user when transmitting uplink, compatible with the old version The user maintains a normal timin...

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Abstract

The invention discloses a method and a device for transmitting uplink data by using a relay station. In the method, the relay station receives and transmits uplink data through uplink relay subframes, wherein all or a part of relay uplink subframes are configured and provided with guard intervals through supervision reference signal (SRS) subframes of a user, or user uplink subframes corresponding to the all or a part of relay uplink subframes are configured as SRS subframes, and all or a part of relay uplink subframes are provided with guard intervals. According to the technical scheme provided by the invention, omission can be avoided while receiving data signals, and signal combination with a user is realized during the uplink transmission of the relay station.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a relay station-based uplink data transmission method and device. Background technique [0002] As an emerging technology, relay technology has attracted more and more attention, and is regarded as a key technology of Beyond Third Generation / The Fourth Generation (abbreviated as 3G / 4G) mobile communication. Since future wireless communication or cellular systems require increased coverage and support for higher transmission rates, new challenges are posed to wireless communication technologies. At the same time, the cost of system construction and maintenance is more prominent. With the increase of transmission rate and communication distance, the problem of battery energy consumption has become more prominent, and future wireless communication will use higher frequencies, resulting in more serious path loss attenuation. Through the relay technology, the traditional single-ho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/26H04W16/26
CPCH04B7/2606H04B7/2656H04B7/155
Inventor 梁枫毕峰杨瑾袁明吴栓栓李岩
Owner ZTE CORP