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Data retransmission adjustment method, device and base station

A technology of data retransmission and adjustment method, applied in the field of communication, can solve problems such as poor transmission efficiency, and achieve the effect of ensuring reliability and improving data transmission efficiency

Inactive Publication Date: 2011-01-26
HUAWEI TECH CO LTD
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Problems solved by technology

[0005] However, since the UE in the enhanced Cell FACH state does not feed back acknowledgment / non-acknowledgement (ACK / NACK) information and channel quality indicator (CQI, Channel Quality Indicator) to the WCDMA base station (Node B) during uplink transmission, the Node B The reliability of downlink data transmission can only be improved by setting a fixed number of downlink retransmissions, and the transmission efficiency of this downlink data transmission method is much worse than that of downlink data transmission in Cell DCH state

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  • Data retransmission adjustment method, device and base station
  • Data retransmission adjustment method, device and base station
  • Data retransmission adjustment method, device and base station

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Embodiment Construction

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0018] Such as figure 1 What is shown is a schematic flowchart of a data retransmission adjustment method provided by an embodiment of the present invention. Note that this embodiment describes the present invention with a WCDMA system, and correspondingly, the base station in this system is a Node B. In fact, the technical solution provided by the embodiment of the present invention can also be applied to other systems, such as TD-SCDMA (Time Division-Synchronous...

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Abstract

The embodiment of the invention provides a data retransmission adjustment method, a data retransmission adjustment device and a base station. The method comprises the following steps of: receiving downlink channel characteristic measurement information reported by user equipment (UE); and judging whether the UE is in an enhanced Cell FACH state or not, and if the UE is in the enhanced Cell FACH state, adjusting the data retransmission times according to the downlink channel characteristic measurement information. In the embodiment of the invention, the data retransmission times are adaptively adjusted according to the downlink channel characteristic measurement information reported by the UE to ensure that the base station can properly reduce the data retransmission times when the downlink channel quality is high and properly increase the data retransmission times when the downlink channel quality is poor, thus not only the reliability of the data transmission is guaranteed, but also the data transmission efficiency is improved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a data retransmission adjustment method, device and base station. Background technique [0002] The current Wideband Code Division Multiple Access (WCDMA) system defines the state of the user equipment (User Equipment, UE) as idle state and connected mode according to the connection mode of the radio resource control protocol (Radio Resource Control, RRC). state. The connection mode state includes a cell dedicated channel (Cell Dedicated Channel, Cell DCH) state and a cell forward access channel (Cell Forward Access Channel, Cell FACH) state. [0003] In the traditional Cell FACH state, the UE's downlink data rate is usually less than 32Kbps. When downloading small files, it usually needs to switch to the Cell DCH state before receiving data, so there is a state transition delay for downlink data transmission. [0004] To address the above defects, the R7 protocol introduces t...

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Application Information

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IPC IPC(8): H04L1/18H04W24/10
CPCH04L1/0026H04L1/1825H04W24/10H04L1/20H04L1/1887
Inventor 冯涵余晶鑫
Owner HUAWEI TECH CO LTD
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