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Processing method for service data pack in hard switch process

A processing method and data packet technology, applied in the field of hard handover, can solve the problems of slow recovery, incomplete recovery, loss of service data packets, etc., and achieve the effects of short recovery time, shortened recovery time, and optimization of the hard handover process

Inactive Publication Date: 2007-07-18
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of service data packet loss, slow recovery, and possible incomplete recovery in the existing hard handover process, the purpose of the present invention is to provide a processing method for service data packets in the hard handover process to optimize the hard handover process and shorten the loss. The service data packets can be restored to send and receive time, and all lost service data packets can be recovered during the hard handover process (that is, there is no loss, lossless), so as to improve the service quality and achieve optimal performance in a simple and efficient way

Method used

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  • Processing method for service data pack in hard switch process

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Embodiment Construction

[0021] The present invention provides a method for processing service data packets in the process of hard handover, which synchronously forwards service data packets between access networks, and simultaneously carries uplink and downlink receiving service data packet statistical information during signaling interaction, avoiding service data packet sending and receiving loss, greatly shortening the recovery time of service data packets.

[0022] The processing method of the service data packet in the hard handover process of the present invention specifically comprises the following steps:

[0023] Step S100, the source access network decides to perform a hard handover, and sends a "hard handover command" signaling to the terminal. In addition to the original signaling content, the hard handover command signaling also carries the sequence number of the current uplink received service data packet Among them, the sequence number of the current uplink service data packet received...

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Abstract

This invention discloses a process method for service data packets in hard switch, which transmits down service data packets have not been sent to the terminal at the present and the ones have been sent but have not received the confirmation information from the terminal among access nets synchronously, and informs the statistic information of the up and down received service data packets to the terminal and target access network via signaling interaction, the terminal and the target access net resume the service data packets according to the statistic information of the received service data packets and the information of the transferred data packets synchronously among access nets to avoid T-R loss of service data packets and reduce the resuming time.

Description

technical field [0001] The invention relates to a hard handover technology in a wireless communication system, in particular to a method for ensuring fast and lossless transmission of service data packets during the hard handover process. Background technique [0002] In the existing system, the hard handover process is shown in Figure 1. When the terminal is sending and receiving normal data service packets with the access network 1, if it receives a hard handover command sent by the access network 1, it will first disconnect from the The signaling and service connection of access network 1 (source) is established, and then the signaling and service connection with access network 2 (target) is established. During the hard handover process, there is a link interruption, resulting in interruption of sending and receiving of service data packets between the terminal and the access network, resulting in loss of service data packets. [0003] After the hard handover process is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/28H04W36/00
Inventor 程翔方敏
Owner ZTE CORP