Processing method of SN changeover failure in UE switching process and device

A technology of switching process and processing method, applied in the direction of electrical components, wireless communication, etc., can solve problems such as service interruption, affect user experience, increase network burden, etc., achieve the effect of reducing burden, improving user experience, and ensuring uninterrupted business

Active Publication Date: 2017-05-17
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] It can be seen that when the UE performs handover operations between base stations, if the SN switching fails, the use of the above-mentioned existing technology will cause the service interruption of the UE after the handover, and it is necessary to wait for the UE to re-connect to the base station before the service can be resumed, which will affect the user experience. Reconnection will also increase network load

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  • Processing method of SN changeover failure in UE switching process and device
  • Processing method of SN changeover failure in UE switching process and device
  • Processing method of SN changeover failure in UE switching process and device

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Embodiment Construction

[0040] Embodiments of the present invention provide a method and device for processing SN switching failure during UE handover, which are used to ensure the service of the UE without disconnecting the link between the UE and the base station when the SN switching fails during the UE handover process. No interruption, and reduce the burden on the UE and the network side, improve network performance, and thus improve user experience.

[0041] The following is a schematic diagram of the processing flow of the target base station when the SN is switched during the UE handover process from an overall perspective, as shown in figure 1 shown.

[0042] In step S101, the UE performs a handover operation between base stations, initiates access at the target station, and the target base station establishes a link for the UE.

[0043] Step S102 , during UE handover, the PDCP entity in the target base station receives the switching data packet sent by the source base station.

[0044] Wh...

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Abstract

The invention discloses a processing method of a serial number SN changeover failure in a user equipment UE switching process and a device. The method and the device are used for achieving that the business of the UE is not interrupted without disconnecting the link between the UE and a base station in case of an SN changeover failure during the UE switching process, thereby improving user experience. The method comprises steps that after a target base of the UE switching is switched to a target base station from a source base station, if it is determined that the changeover of SN information for carrying out current business communication with the UE fails, the target base station suspends the uplink and downlink business of the UE; the target base station acquires the SN information; and the target base station recovers to execute the uplink and downlink business of the UE according to the acquired SN information.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for processing SN switching failure during UE switching. Background technique [0002] The sequence number (Sequence Number, SN) is a variable maintained by the user plane Packet Data Convergence Protocol (PDCP) layer in the Long Term Evolution (LTE) system, and is mainly used for user equipment (User Equipment, UE ) during business communication with the base station, such as the transmission, sorting, encryption and decryption of data packets. During the inter-base station handover process of the UE, the SN on the UE side is always continuous, and the SN on the base station side is guaranteed through the SN switching process between the source base station and the target base station of the UE. If the SN switching fails or is delayed, then The SNs on the UE side and the base station side will be inconsistent, resulting in problems such as upl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/02H04W36/08H04W24/04
CPCH04W24/04H04W36/023H04W36/08
Inventor 耿良周宇恒
Owner DATANG MOBILE COMM EQUIP CO LTD
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