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Data transmission method and device in wireless network

A data transmission method and a wireless network technology, which are applied in the field of data transmission methods and devices, can solve the problems of user terminal interference served by micro base stations, large difference in transmission power between macro base stations and micro base stations, etc., so as to avoid interference and improve transmission performance Effect

Active Publication Date: 2011-11-30
HUAWEI TECH CO LTD
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In a heterogeneous network, due to the introduction of low-power serving nodes, the interference scenarios in the heterogeneous network are different from those in the homogeneous network. For example, generally speaking, the transmit power of a macro base station is 46dBm, while that of a micro base station is only 30dBm. Obviously, due to the large difference in transmission power between the macro base station and the micro base station, the user terminals served by the micro base station will be interfered by the macro base station

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  • Data transmission method and device in wireless network
  • Data transmission method and device in wireless network
  • Data transmission method and device in wireless network

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Embodiment Construction

[0027] In the embodiment of the present invention, the first access point in the wireless network sends the information transmitted on the data channel allocated to the user terminal to the second access point, and the first access point does not transmit information on the data channel data.

[0028] The second access point uses the data channel to send data to the user terminal according to the information transmitted by the data channel allocated to the user terminal.

[0029] In practical applications, the foregoing wireless network may be a heterogeneous network or a homogeneous network.

[0030] In practical applications, the first access point may be a macro base station, a micro base station, a home base station, a relay station, etc., and the second access point may be a macro base station, a micro base station, a home base station, a relay station, and the like.

[0031] In a practical application, the above user terminal may be an LTE user equipment or an LTE-A use...

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Abstract

The disclosure provides a method and apparatus for data transmission in a radio network. The method includes: a first access point sends transmission information of a data channel allocated to a user terminal to a second access point, enabling the second access point sending data to the user terminal through the data channel according to the transmission information of the data channel, where the first access point sends no data through the data channel, or sends data through the data channel to other user terminals than the user terminal through the data channel at a transmit power less than or equal to a first power. The technical solution of the present disclosure can avoid channel interference between the second access point and the first access point in a heterogeneous network scenario, and improve transmission performance.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a data transmission method and device in a wireless network. Background technique [0002] Heterogeneous network technology can support the coverage of high data rate transmission and provide good user coverage. The further evolution of the LTE (Long Term Evolution, Long Term Evolution) system and the enhanced system LTE-A (Long Term Evolution-Advanced, Advanced Long Term Evolution ) systems are widely used. The heterogeneous network defined in the 3GPP LTE-A standard refers to a network composed of different power nodes, including: macro base stations, micro base stations, home base stations, and repeaters. [0003] In the heterogeneous network, the user terminal needs to demodulate the control channel of the service node correctly first, and receive the scheduling information of the data transmission from the service node through the control channel. Then, the s...

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Application Information

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IPC IPC(8): H04W72/04H04L1/00H04L1/18
CPCH04W52/243H04W72/0406H04W52/367Y02B60/50H04W52/244H04W36/00H04W92/20H04L1/0003H04L1/00H04L1/0009H04L1/1812H04L1/0025H04W52/26H04W72/20
Inventor 白伟郑娟闫志宇
Owner HUAWEI TECH CO LTD
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