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Mobile communication system based on Internet protocol (IP) bearing and method for switching cells in system

A mobile communication system and cell handover technology, applied in wireless communication, electrical components, etc., can solve the problem of not performing cell handover, achieve the effects of reducing call drop rate, improving user call awareness, and improving overall performance

Inactive Publication Date: 2012-07-25
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a mobile communication system based on IP bearer and a method for switching cells in the system, so as to overcome the poor transmission quality of the IP service link and the poor quality of the wireless link in the existing mobile communication system based on IP bearer. When the road quality is good, the defect of not performing cell handover

Method used

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  • Mobile communication system based on Internet protocol (IP) bearing and method for switching cells in system
  • Mobile communication system based on Internet protocol (IP) bearing and method for switching cells in system
  • Mobile communication system based on Internet protocol (IP) bearing and method for switching cells in system

Examples

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application example 1

[0095] Step 1: Enable the cell handover function based on the RTCP measurement function from the background setting; set the (two-way) delay threshold of RTCP to 600ms, (downlink) jitter threshold to 30ms, and (downlink) packet loss threshold to 3%; report the RTCP measurement results Period value T is 3 seconds; P value is 5, N value is 3;

[0096] Step 2: The call starts, and the serving base station will report the RTCP measurement results to the upper-level network element BSC (Base Station Controller, base station controller) every 3 seconds, and the BSC will collect the previous P (P=5) RTCP measurement results As shown in Table 1.

[0097]

[0098] Step 3: The BSC judges, based on the measurement results collected in step 2, whether to trigger the cell handover process for the mobile terminal, specifically including:

[0099] 1) In measurement result 1, the two-way delay of 620ms exceeds the threshold of 600ms;

[0100] 2) In measurement result 2, the downlink jitt...

application example 2

[0106]Step 1: Enable the cell switching function based on the RTCP measurement function from the background setting; set the (downlink) jitter threshold of RTCP to 30ms, the (downlink) packet loss threshold to 3%, and do not set the delay-related threshold; the reporting cycle of RTCP measurement results T is 4 seconds; P value is 4, N value is 3;

[0107] Step 2: The call starts, and the serving base station reports the RTCP measurement result to the BSC every 4 seconds. Table 2 shows the measurement results of P (P=4) RTCPs collected by BSC through the sliding window mechanism for a period of time after the start of the call. At the same time, the serving base station reports the wireless measurement report to the BSC.

[0108]

[0109] Step 3: The BSC judges, based on the measurement results collected in step 2, whether to trigger the cell handover process for the mobile terminal, specifically including:

[0110] 1) In measurement result 1, the downlink jitter of 35ms ...

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Abstract

The invention discloses a mobile communication system based on Internet protocol (IP) bearing and a method for switching cells in the system. The system comprises a base station and a superior network element. The method comprises the following steps that: during communication of a mobile terminal, a service base station measures the transmission quality of an IP service link by virtue of a real-time transmission control protocol and reports a measurement result to the superior network element; and the superior network element triggers a cell switching flow aiming at the mobile terminal when judging that the transmission quality of the IP service link cannot meet a preset requirement according to the received measurement result. According to the system and the method, under the conditions that the transmission quality of the IP service link is relatively low and the transmission quality of a wireless link is relatively high, the system tries to switch the cells; and therefore, under a certain condition, the user communication sensitivity is improved, the call drop rate is reduced, and the whole performance of a mobile network is improved.

Description

technical field [0001] The invention relates to a mobile communication network, in particular to a mobile communication system based on IP bearer and a cell switching method in the system. Background technique [0002] During the conversation of a mobile user, in order to establish the call in the cell with the best signal quality and prevent the call from being dropped, the concept of cell switching is introduced. In other words, the purpose of cell handover is to ensure that the conversation can continue when the mobile terminal moves from one cell to another, so as to meet the needs of network management. [0003] In the existing mobile communication process, the handover decision depends on the report on the downlink radio link measurement sent by the mobile terminal to the network periodically during the call, and the report on the uplink radio link measurement by the current serving base station. These two measurement reports will be At the same time, it is sent to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/10H04W36/08H04W36/30
Inventor 梁成胡鹏张思高
Owner ZTE CORP