Method and device for processing data at switchover procedure

A technology for data processing and switching process, which is applied in the direction of selection device, data exchange network, digital transmission system, etc. It can solve the problems of complicated data processing and waste of repeated data transmission, and achieve the effect of reducing repeated waste and simplifying the processing process

Active Publication Date: 2007-10-03
HUAWEI TECH CO LTD
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  • Application Information

AI Technical Summary

Problems solved by technology

[0017] The present invention provides a method and device for processing data in the handover process, so as to solve the problem of complex data processing and repeated data transmission in the existing handover process of the target base station, which wastes air interface resources

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  • Method and device for processing data at switchover procedure
  • Method and device for processing data at switchover procedure
  • Method and device for processing data at switchover procedure

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Embodiment Construction

[0044] In order to understand the present invention more clearly, first describe the signaling processing process of the control plane during handover in the wireless evolution network, as shown in Figure 4, the process is as follows:

[0045] 1. Before switching, it is necessary to know the location area information and location area restriction information of the user equipment.

[0046] 2. Interaction of measurement control and reporting between the source base station and the user equipment.

[0047] 3. The source base station makes a handover decision according to the measurement report.

[0048] 4. The source base station sends handover request signaling to the target base station.

[0049] 5. The target base station performs resource reservation according to the received handover request signaling.

[0050] 6. The target base station sends a handover response signaling to the source base station, and the source base station starts the data forwarding process after rec...

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Abstract

The invention discloses a method of data processing in the switching process, applying to the wireless evolution network. After the source base station sends switching order to the target base station and receives the message of permission, the source base station transfers the data to the target station, which includes all PDCP data packets buffer queue corresponding to the current user equipment and the follow-up received data accessing gateway to send to user equipment for switching. The described PDCP packet buffer queue includes the packaged ARQ data and PDCP data packets without the confirmation. The target base station reserves the data transmitted by the source one into itself PDCP data packet. The invention also discloses a kind of base station equipment.

Description

technical field [0001] The present invention relates to the wireless evolution network technology in the field of communication, in particular to a method and device for processing data in the handover process in the wireless evolution network. Background technique [0002] In the future wireless evolution network system, there are many candidate schemes for the network evolution architecture, among which the two-layer node architecture is more popular, as shown in Figure 1. In this architecture, the base station eNodeB is an evolved base station NodeB, which has most of the previous functions of a radio network controller (RNC). An access gateway (Access GW, AGW) has most of the functions or function combinations of previous core network nodes, such as SGSN or GGSN. Among them, the Outer ARQ function is mainly placed at the eNodeB. [0003] In order to avoid the problem of loss of cached data at the source eNodeB during the handover process based on this architecture, mos...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/38H04L12/56H04Q7/30H04W28/04H04L1/18H04W36/00H04W36/02
Inventor 杭大明邓永锋王宗杰
Owner HUAWEI TECH CO LTD
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