Timing method, equipment and system of terminal for transmitting upstream information

Abstract

The invention discloses a timing method of a terminal for transmitting upstream information, which comprises the following steps: relay equipment aligns an upstream subframe edge which is accessed to a link at an upstream subframe edge of a return link, and obtains the upstream frame timing of the relay equipment according to any one of the aligned link upstream frame timing; the relay equipment confirms the timing lead between the upper frame timing and the down frame timing according to the upper frame timing and the down frame timing of the relay equipment, and confirms an upstream information transmitting timing lead which corresponds to a terminal serviced by the relay equipment according to the timing lead; and the relay equipment informs the upstream information transmitting timing lead to the corresponding terminal for indicating that the terminal can transmit the upstream information in advance according to the upstream information transmitting timing lead. In the invention, the timing accuracy of the relay equipment and the terminal is guaranteed, thereby guaranteeing the transmission quality, and saving the resources.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method, device and system for sending uplink information of a terminal. Background technique [0002] LTE (Long Term Evolution, long-term evolution) system is the evolution of 3G (3rd Generation, third-generation mobile communication system). LTE improves and enhances the air access technology of 3G, and adopts OFDM (Orthogonal Frequency Division Multiplexing, orthogonal frequency Division Multiplexing) and MIMO (Multiple Input Multiple Output, Multiple Input Multiple Output) are standards for wireless network evolution. Among them, LTE can provide a peak rate of downlink 100Mbit / s and uplink 50Mbit / s under 20MHz spectrum bandwidth, which improves the performance of cell edge users, increases cell capacity, and reduces system delay. With the rapid growth of the number of mobile terminal users, the service capacity of terminal users is increasing exponentially. I...

AI Technical Summary

Problems solved by technology

Because the subframe timing of the access link is aligned with the subframe timing of the backhaul link, the uplink frame timing and downlink frame timing of the relay device are respectively delayed. When the delay values ​​of the two are different, the timing of the relay device The advance amount needs to be changed, so the timing advance amount of the terminal also needs to be adjusted, and in the prior art, when the terminal obtains the timing advance amount between uplink and downlink timing, the difference of the delay value is not considered

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