Method for triggering status report by radio link control layer and receiving side device

Abstract

The invention provides a method for triggering a status report by a radio link control layer and a receiving side device. The method comprises the following steps that:1, a receiving side of an acknowledge mode (AM) entity of the radio link control layer detects non-delivery data quantity in a sliding window of the receiving side, if the non-delivery data quantity exceeds a first threshold value, the AM entity enters a transmission adjusting status of a dynamic status report; and 2, in the transmission adjusting status, the receiving side of the AM entity determines whether to transmit the status report or not according to a first predetermined condition. By the method, the transmission of the relevant status report can be dynamically triggered before the transmitting sliding window is in a jam status, so that the transmitting side can retransmit the lost data as soon as possible, and the technical problems that the service delay is enlarged, even the service is in short-term interruption caused because the AM sliding window cannot shrink for a long time in the prior art are solved.

Description

technical field [0001] The present invention relates to the control aspect of the RLC (Radio Link Control, radio link control layer) AM (Acknowledged Mode, confirmation mode) sending side entity in the long-term evolution system (LTE) in the wireless communication field, and particularly relates to a radio link control layer triggering A method for status reporting and a receiving side device. Background technique [0002] The wireless protocol structure of E-UTRAN (Evolved Universal Terrestrial Radio Access Network, Evolved Global Terrestrial Radio Access Network) is divided into a user plane and a control plane. The wireless side is divided into physical layer (PHY), media access control (MAC), RLC, and packet data convergence protocol (PDCP) sublayers. [0003] The RLC protocol layer is a sublayer of layer 2 (L2) in the radio interface protocol stack of LTE. The RLC layer provides segmentation and retransmission services for user and control data. RLC functions include ...

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Problems solved by technology

[0018] The purpose of the embodiments of the present invention is to provide a method for triggering a status report at the radio link control layer and a device on the receiving side, which can dynamically trigger the sending of related status reports before the transmission sliding window is congested, so that the sending side can resume the status report as soon as possible. Lost data transmission, solving the technical problems of increased service delay and even short-term service interruption caused by the delay in shrinking the AM sliding window in the existing technology

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