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A method, device and base station for frame dropping detection

A frame loss and frame number technology, applied in the field of frame loss detection, can solve problems affecting users' normal use of services, and achieve the effects of fast detection, flexible flow control, and timely flow control

Active Publication Date: 2008-07-09
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the technical scheme of the prior art will judge this situation as frame loss because the received FSN is discontinuous, thus causing the Iub bandwidth on the transmission channel to be adjusted when not needed, which affects the normal use of services by users

Method used

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  • A method, device and base station for frame dropping detection
  • A method, device and base station for frame dropping detection
  • A method, device and base station for frame dropping detection

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Embodiment Construction

[0050] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0051]An embodiment of the present invention provides a method for detecting frame loss, and FIG. 3 is a flow chart of the method. As shown in Figure 3, the method includes the following steps:

[0052] In step 301, the received data frame tags are arranged according to the sending time to form a data frame tag queue.

[0053] In step 302, when the data frame tags in the data frame tag queue reach the set number, it is judged whether the frame sequence numbers of the two data frame tags with the earliest sending time in the data frame tag queue are continuous, if not, then determine the data frame lost.

[0054] The method will be described in detail below according to the drawings and specific embodiments.

[0055] Fig. 4 is a flowcha...

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Abstract

The embodiment of the invention provides a method for implementing loss frame detection, which arranges received data frame tags according to sending time, and when the number of the received data frame tags reaches a predefined number, the method decides that loss frame exists if the two data frame tags with the earliest sending time have inconsecutive frame serial numbers. The embodiment of the invention provides another method for implementing loss frame detection, which arranges the received data frame tags according to sending time, and if the receiving time of data frames exceeds a predefined time section, the last data frame tag and all the previous data frame tags are detected before the predefined time section starts, and that loss frame exists is decided if two adjacent data frame tags have inconsecutive frame serial numbers. The embodiment of the invention further provides a device and a base station which are corresponding to the methods. The technical scheme provided by the embodiment of the invention can solve the problem of the error adjustment of sending bandwidth which is caused by inaccurate loss frame detection in the prior art.

Description

technical field [0001] The invention relates to data transmission technology, in particular to a method, device and base station for detecting frame loss. Background technique [0002] High Speed ​​Downlink Packet Access (HSDPA) is a breakthrough technology introduced by the 3GPPR5 protocol. Through the introduction of the MAC-hs (Medium Access Control-High Speed) entity on the base station (NodeB) side, and the use of new technologies to improve the downlink peak transmission rate, system capacity, and system spectrum efficiency, while satisfying user requirements High-quality service requirements, realize the sharing of data packets on channel code and transmission power. [0003] The new technologies introduced by HSDPA mainly include: [0004] 1) Adaptive Modulation Coding (AMC) [0005] The basic principle of the AMC method is to adaptively adjust the coding and modulation scheme according to the channel quality measurement results of the downlink channel, so as to m...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04L12/56
Inventor 汤志平
Owner HUAWEI TECH CO LTD