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Method and system for detecting data lost number

A technology for detecting data and data loss, which is applied in the field of communication, can solve problems such as the undetectable amount of data loss, and achieve the effects of improving system throughput, reducing the number of retransmissions, and increasing the success rate of sending

Active Publication Date: 2008-10-22
XFUSION DIGITAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] It can be seen from the above description that in the prior art, by adding TSN indication, the reordering entity / combining function entity of RNC realizes the sorting of out-of-order MAC-es PDUs, although it can be in a certain receiving window with the cooperation of CFN and SubFn achieves correct sorting in the range, but in the presence of data loss, it cannot detect the amount of data loss

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  • Method and system for detecting data lost number
  • Method and system for detecting data lost number

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Embodiment Construction

[0047] The core idea of ​​the present invention is to provide a method and system for detecting the number of data loss, using TSN to represent the initial MAC-d PDU sequence number transmitted in the MAC-e PDU, combined with the process ID of the transmission, the number of data loss can be detected, Thereby improving system throughput and transmission success rate.

[0048] The present invention provides a system for detecting the number of data loss, the schematic diagram of the module of an embodiment of the system is as follows Figure 4 As shown, on the UE side, a transmission sequence number setting module is set, which is used to set the TSN value for the MAC-es PDU, and is used to indicate the sequence number of the first MAC-d PDU encapsulated in the MAC-es PDU.

[0049] A process difference calculation module, a data loss judgment module, and a data loss number calculation module are set on the NodeB side;

[0050] The process difference calculation module is used ...

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Abstract

This invention relates to a method and a system for testing numbers of lost data in the communication field, in which, said method includes: a user device side utilizes a transmission sequence number TSN to express the first MAC-dPDU serial number packaged in MAC-esPDU, transmits the data carrying said TSN to the base station, which computes the course difference of the data received in two continuous times to judge if there are data lost based on the difference then to compute numbers of the lost MAC-d PDU according to the TSN value of the two times received data and the number of the MAC-d PDU in the transmitted data when the course difference is 2, which can get to know the transmission situation of the last TTI by the first MAC-d PDU serial number packaged in the MAC-es PDU of TSN and test the lost number of the MAC-d PDU.

Description

technical field [0001] The invention relates to the technical field of communications, in particular to a method, device and system for detecting data loss numbers. Background technique [0002] 3GPP (Third Generation Partnership Project) organization began to formulate WCDMA system uplink data transmission enhancement technology HSUPA (High Speed ​​Uplink Packet Data Access) in 2004. The HSUPA system uses HARQ (composite retransmission) technology and NodeB fast scheduling technology And the uplink 2ms short frame technology greatly improves the throughput rate of uplink user data. The peak rate of the air interface can reach 5.76Mbps, and it also greatly improves the uplink capacity of the system. [0003] The HSUPA system does not involve entities above the RLC (Radio Link Control) layer of the WCDMA system. It adds MAC (Media Access Control) entities and physical layer channels. The protocol model of the data transmission process is as follows: figure 1 Shown: [0004]...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L1/16H04L1/18H04L29/06H04L12/56H04Q7/38H04B7/26
Inventor 王松吴玉忠
Owner XFUSION DIGITAL TECH CO LTD