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Method for processing user plane during switching process and implementing apparatus thereof

A processing method and handover process technology, which are applied in the field of user plane processing methods and implementation devices thereof, can solve the problems of increased data delay, complex processing process, long preparation time, etc., and achieve the effect of reducing data delay

Active Publication Date: 2012-09-12
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] It can be seen that the preparation time for the existing handover process is very long, and the downlink data will be stored in the buffer area of ​​the target base station for a period of time, and the downlink data will not be sent again until the terminal is handed over to the target base station. This process increases the data delay.
At the same time, if the handover fails, the follow-up process is also more complicated.

Method used

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  • Method for processing user plane during switching process and implementing apparatus thereof
  • Method for processing user plane during switching process and implementing apparatus thereof
  • Method for processing user plane during switching process and implementing apparatus thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0076] in such as figure 1 In the distributed system shown, the terminal initially accesses BS1RN2, and as the terminal moves, the wireless connection between the UE and BS1RN2 gradually weakens, triggering a handover threshold, and finally handover to the target side BS2RN2.

[0077] During this switching process, the switching method flow is as follows: Figure 4 As shown, the signaling process of the control plane can refer to another patent application of the applicant for details, and the implementation idea is briefly described as follows:

[0078] (1) The source base station BS1 selects a group of suitable RNs according to the measurement quantity reported by the terminal to form a target RN set.

[0079] (2) Each target RN will be configured with the same resource. The allocated resources may be the same as or different from the source base station.

[0080] (3) The source base station and the base station of each RN in the target RN set respectively establish tunne...

Embodiment 2

[0100] exist figure 2 In the centralized control network shown, the terminal initially accesses BS1RN2, and as the terminal moves, the wireless connection between the UE and BS1RN2 gradually weakens, triggering a handover threshold, and finally handover to the target side BS2RN2.

[0101] During this switching process, the switching method flow is as follows: Figure 5 As shown, the signaling process of the control plane can refer to another patent application of the applicant for details, which is simply:

[0102] (1) The RRM Server selects a group of suitable RNs according to the measurement quantity reported by the terminal to form a target RN set.

[0103] (2) Each target RN will be configured with the same resource. The allocated resources may be the same as or different from the source base station.

[0104] (3) After the RRM Server configures resources for each RN in the target set, it will notify the EPC of the ID list of the base stations to which each RN belongs,...

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Abstract

The invention discloses a user plane treatment method when using data forwarding mechanism and data multicast mechanism during switch process. The invention sets a time label for a sent data packet, thereby ensuring all nodes can synchronously send the same data to the terminal, increasing switch speed, reducing data delay brought by switch, and the method is good for the seamless transition during switch process. The invention also discloses a core network and a base station for realizing the user plane treatment method, which can improve service transmission quality, increase switch speed and effectively ensure switch quality.

Description

technical field [0001] The invention relates to cell handover technology in mobile communication, in particular to a user plane processing method in the handover process and an implementation device thereof. Background technique [0002] In the third-generation mobile communication Long Term Evolution (LTE) system, when the radio channel environment changes, it will trigger the cell handover of the user terminal. When the user terminal performs cell handover, it usually includes two stages of handover preparation and handover execution. In the handover preparation stage: the user terminal monitors the wireless channel environment in real time. When the wireless channel environment changes, the user terminal will send a measurement report to the source base station; The target base station sends a handover request message, requiring the target base station to reserve corresponding resources for the user terminal; if the target base station has corresponding idle resources, or...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04W36/00H04B7/26
Inventor 王文清张娟赵国胜
Owner DATANG MOBILE COMM EQUIP CO LTD
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