Method, system and device for adjusting cell coverage area

A coverage and cell coverage technology, applied in power management, electrical components, wireless communication, etc., can solve problems such as increasing the difficulty of adjustment, and achieve the effect of reducing difficulty, reducing intervention, and improving performance

Active Publication Date: 2014-04-16
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] To sum up, at present, when the downlink coverage is greater than the uplink coverage, the relevant parameters need to be adjusted manually, which increases the difficulty of adjustment

Method used

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  • Method, system and device for adjusting cell coverage area
  • Method, system and device for adjusting cell coverage area
  • Method, system and device for adjusting cell coverage area

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0205] This embodiment mainly describes the limited coverage of the uplink PUSCH in cell 1. In this implementation, a distributed architecture is adopted, that is, the calculation of the relevant adjustment strategy is performed in the base station, the coverage of the downlink RS signal is greater than the coverage of the PUSCH, and the coverage of the PRACH and The coverage of the downlink RS signal is equivalent, and the way of adjustment is to reduce the transmission power of the downlink RS to complete.

[0206] 1. A certain UE is handed over from cell 2 to cell 1. After the UE receives the handover command and successfully initiates a random access procedure to cell 1, a call drop occurs, and the UE considers that the uplink data signaling fails to be sent. The content of UE record information is as follows:

[0207] The downlink RS signal strength received by the UE;

[0208] UE uplink transmit power: The difference between the maximum power and the actual transmit pow...

Embodiment 2

[0226] This embodiment mainly describes the limited coverage of the uplink PRACH in cell 1. In this implementation, a centralized architecture is adopted, that is, the calculation of the related adjustment strategy is performed in the O&M device, and the adjustment method is completed by reducing the transmit power of the downlink RS.

[0227] 1. A UE is handed over from cell 2 to cell 1. After receiving the handover command, the UE initiates a random access process to cell 1. After sending MSG1, it still does not get a response from the base station, and the UE considers that the sending of MSG1 has failed. The content of the recorded information is as follows:

[0228] The downlink RS signal strength received by the UE;

[0229] UE uplink transmit power: The difference between the maximum power and the actual transmit power is used. At this time, the UE transmits at the maximum power, so this parameter is 0;

[0230] Type of uplink channel: PRACH;

[0231] PCI of the targe...

Embodiment 3

[0247] This embodiment mainly describes the limited coverage of the uplink PRACH in cell 1. In this implementation, a hybrid architecture is adopted, that is, the calculation of the relevant adjustment strategy is performed in the O&M device, and the adjustment method is completed by reducing the down angle of the antenna.

[0248] 1. A UE is handed over from cell 2 to cell 1. After receiving the handover command, the UE initiates a random access process to cell 1. After sending MSG1, it still does not get a response from the base station. At this time, the UE considers that the sending of MSG1 has failed. The content of the recorded information is as follows:

[0249] The downlink RS signal strength received by the UE;

[0250] UE uplink transmit power: The difference between the maximum power and the actual transmit power is used. At this time, the UE transmits at the maximum power, so this parameter is 0;

[0251] Type of uplink channel: PRACH;

[0252] PCI of the target ...

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Abstract

The invention relates to the wireless communication technique, particularly relating to a method, a system and a device for adjusting the cell coverage area, which is used for decreasing the difficulty of the relevant parameter adjustment when the relevant parameter is adjusted at the condition that the downlink coverage area is more than the uplink coverage area. The method of the embodiment of the invention comprises the following steps: according to the downlink RS strength and the uplink channel transmission power in the recorded information reported by a user terminal, determining whether the downlink channel coverage area is more than the uplink channel coverage area or not in a cell corresponding to the cell identification in the recorded information; and if so, adjusting the coverage parameter of the cell corresponding to the cell identification to lead the adjusted downlink coverage area of the cell to be consistent with the uplink coverage area, wherein, the record information is recorded by the user terminal when the communication between the user terminal and a network side is failed. The method of the embodiment of the invention can reduce manual intervention and decrease the difficulty of the relevant parameter adjustment.

Description

technical field [0001] The present invention relates to wireless communication technology, in particular to a method, system and device for adjusting cell coverage. Background technique [0002] For the coverage area generally required by the communication system, the normal transmission of the uplink and downlink is guaranteed, and the signals received by the base station and the mobile phone can be demodulated, thereby ensuring the normal establishment of two-way communication. When the downlink coverage is larger than the uplink, a false coverage area will be generated at the edge of the cell; within the false coverage area, the mobile phone can normally receive the signal of the base station, but cannot access the system. The user cannot obtain the service as the calling party, and the phenomenon of not being in the service area will appear when the user is called. [0003] Such as figure 1 As shown, in the schematic diagram of the cell coverage when the uplink channel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/18H04W52/24H04W52/36H04W88/02H04W88/08
Inventor 许森
Owner DATANG MOBILE COMM EQUIP CO LTD
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