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Cell switching method and device

A cell handover and location information technology, applied in the field of communication, can solve the problems of call drop impact, occupation of resources, large call drop risk, etc., and achieve the effects of low handover synchronization time error, high success rate, and improved resource utilization.

Inactive Publication Date: 2013-07-24
CHINA ACAD OF TELECOMM TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Hard handover means that before communicating with the new cell, the user needs to disconnect the service from the source cell and re-connect to the new cell, which may cause a certain impact on call drop
[0004] Among the existing technologies, they are generally applicable to ground mobile communications. However, soft handover occupies too many resources because it has link connections with multiple cells.
Hard handover needs to disconnect the previous link connection during the execution process, so there is a greater risk of call drop

Method used

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Embodiment Construction

[0027] The embodiment of the present invention provides a cell handover method and device, which are used in the satellite communication system to make the handover of the user have a lower handover synchronization time error and a higher success rate, and at the same time, do not occupy Excessive resources, improve resource utilization.

[0028] The technical solutions provided by the embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0029] On the network side, see figure 1 , a cell switching method provided by an embodiment of the present invention, comprising the steps of:

[0030] S101. The network side device sends the synchronization parameter of the target point beam to the user equipment UE, which is used to instruct the UE to maintain synchronization with the target point beam;

[0031] S102. The network side device acquires the location information of the UE and the power information of the spot beam repor...

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Abstract

The invention discloses a cell switching method and device. The cell switching method and device is used in a satellite communication system and enables switching of a user to be low in synchronization time error and high in success rate. Meanwhile, according to the cell switching method and device, in a switching process, excessive occupancy of resources is avoided, and the using rate of the resources is improved. The cell switching method comprises the following steps: network-side equipment sends a synchronization parameter of a target spot beam to user equipment (UE) to instruct the UE to stay synchronous with the target spot beam, the network-side equipment then acquires position information of the UE and power information of the spot beam, and then the network-side equipment judges whether to carry out cell switching on the UE or not according to the position information of the UE and the power information of the spot beam, wherein the position information of the UE and the power information of the spot beam are reported by the UE.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a cell switching method and device. Background technique [0002] In a mobile communication system, in order to improve spectrum resource utilization and system capacity, the coverage of a single base station cell is certain, so when a user moves from one cell to another, the signal degradation of the source cell cannot meet the service conditions, while The signal of the new cell is getting stronger and stronger, so the user needs to access the new cell from the source cell, which is the concept of handover. [0003] Generally, handover is divided into soft handover and hard handover. Soft handover means that a user establishes wireless link communication with multiple cells at the same time. Soft handover can provide a certain diversity gain in the uplink and downlink, and can improve the call quality. Hard handover means that before communicating with the ne...

Claims

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Application Information

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IPC IPC(8): H04W36/30H04W56/00
Inventor 谭凤鸣阮航徐伟杰张艳
Owner CHINA ACAD OF TELECOMM TECH
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