Uplink data sending method, device and system

Abstract

The invention discloses an uplink data sending method, an uplink data sending device and an uplink data sending system, wherein the uplink data sending method comprises the following steps: according to the request information sent by a limited mobile terminal limited by uplink transmission, sending back response message used for indicating the limited mobile terminal to perform uplink transmission to the limited mobile terminal, and sending assistance request to an assistance mobile terminal being in an idle state in a service area; after receiving confirmed assistance information returned by the assistance mobile terminal and the uplink data sent by the limited mobile terminal according to the response message, allocating the uplink data resource, indicating the limited mobile terminal to send data on the first resource, indicating the assistance mobile terminal to capture data on the first resource, and transmitting the data by utilizing a second resource; combining the data received from the first resource and the second resource after demodulation to acquire uplink data after signal strength reinforces. According to the uplink data sending method, the uplink data sending device and the uplink data sending system, the SINR (Signal-to-Interference and Noise Ratio) of receiving uplink data by a base station and the accuracy of demodulating the uplink data can be improved, and the effect of the base station uplink cover is strengthened.

Description

technical field [0001] The present invention relates to wireless communication technology, in particular to a method, device and system for sending uplink data. Background technique [0002] With the development of wireless communication technology, the 3rd Generation mobile communication system (the 3rd Generation, 3G) has been gradually popularized. Facing the challenges brought by the growing demand for high-speed data services, the mobile communication system needs to quickly adapt to the next generation cellular mobile network. Evolution, and gradually develop into a Long Term Evolution (Long Term Evolution, LTE) system. [0003] Taking the LTE system as an example, the problem of unbalanced uplink and downlink coverage common in various mobile communication systems is explained. [0004] LTE systems are generally constructed based on the existing Global System for Mobile communications (GSM) and / or Universal Mobile Telecommunications System (UMTS). After analyzing and...

AI Technical Summary

Problems solved by technology

However, increasing the power will greatly consume the energy consumption of the terminal. Due to limiting factors such as the physical size of the terminal and battery capacity, improving the coverage by increasing the maximum transmit power is severely restricted, and increasing the power will also cause a huge loss of neighbors. Area interference, correspondingly will reduce the coverage and capacity of the system

In the prior art, the hybrid automatic repeat request (HARQ) technology and uplink frequency hopping technology can be used to slightly improve the coverage of uplink data services, but the effect is not significant

[0007] Due to the limitation of terminal energy consumption, in all mobile communication systems, the downlink transmission of the base station generally has a large coverage area, while the coverage area of ​​the uplink transmission of the base station is much smaller than that of the downlink transmission, resulting in the problem of unbalanced uplink and downlink coverage. The signal to interference plus noise ratio (Signal to Interference plus Noise Ratio, SINR) of the received uplink data decreases, resulting in a decrease in the accuracy of the base station to demodulate the uplink data

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