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Access hard switchover method and system of high speed downlink packet

A hard switching, high-speed technology, applied in the field of network communication, can solve the problems of large data transmission delay, data loss, poor service experience, etc., to avoid large data transmission delay, save network resources, and avoid data loss.

Active Publication Date: 2008-10-15
XFUSION DIGITAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the user rate supported in LTE will be higher, it may cause more data loss. Therefore, in LTE, there are also upper-layer data retransmissions caused by data deletion, large data transmission delays, and user perception of services. Bad question

Method used

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  • Access hard switchover method and system of high speed downlink packet
  • Access hard switchover method and system of high speed downlink packet
  • Access hard switchover method and system of high speed downlink packet

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Embodiment Construction

[0061] After the UE completes the HSDPA hard handover, if the RNC can actively transmit the deleted data in the UE source cell base station to the UE target cell base station in a timely manner, for the AM service, it can avoid the RLC layer overload caused by the HSDPA hard handover. It can reduce the data transmission delay of AM services after HSDPA hard handover; for UM and TM services, it can avoid data loss caused by HSDPA hard handover.

[0062] Therefore, the main technical solution of the present invention is: before the UE performs hard handover of high-speed downlink packet access HSDPA, the radio network controller RNC starts to back up the high-speed downlink shared channel HS-DSCH data of the UE, and the base station of the source cell will The HSDPA hard handover of the UE fails to send the data information that needs to be deleted to the RNC, and the RNC sends its backup corresponding HS-DSCH data to the target cell base station according to the information tran...

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Abstract

This invention provides a hard switchover method and a system for accessing high speed down packets, in which, the RNC backs up the HS-DSCH data of services of the UE when the UE is going to carrying out high speed down packet access hard switch and sends the backed up related data to a base station of the target area based on the information of deleted data of a base station of the source area, which avoids the re-transmission process of the RLC layer to the AM service and further avoids the invalid re-transmission process that UE tests data lost and sends re-transmission requests repeatedly and the RLC continuously sends re-transmission data and avoids data lost since the RLC sends the data deleted by the base station of the source area to the target area directly.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a high-speed downlink packet access hard switching method and system. Background technique [0002] The earliest protocol version of WCDMA (Wideband Code Division Multiple Access) technology is Release99. In this version, both uplink and downlink services are carried based on dedicated channels, and the data transmission rate of uplink and downlink can both be Up to 384Kbps. [0003] Due to the increasing demand of users for data transmission rate, the WCDMA standard-setting organization successively launched downlink high-speed data packet access technology and uplink high-speed data packet access technology. These two access technologies can respectively provide up to 14.4Mbps and The peak rate of 5.76Mbps, and the spectral efficiency has also been greatly improved. [0004] HSDPA (High Speed ​​Downlink Packet Access, High Speed ​​Downlink Packet Access), as a h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04Q7/38H04W36/08
Inventor 秦亚莉
Owner XFUSION DIGITAL TECH CO LTD
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