Seamless handover method and system

A handover and seamless technology, applied in the field of seamless handover methods and systems, can solve problems such as no technology proposed, and achieve the effects of improving statistical average value, improving communication interruption performance, and improving system performance

Active Publication Date: 2008-12-10
EASYWAY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] If the essential advantage of the distributed wireless communication system, that is, the cooperation between antennas, c

Method used

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  • Seamless handover method and system
  • Seamless handover method and system
  • Seamless handover method and system

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Embodiment Construction

[0023] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0024] A seamless handover method according to an embodiment of the present invention is as follows: figure 1 shown, including the following steps:

[0025] In step s101, the distributed antenna units are divided into two types: odd type and even type. The division of odd and even types of distributed antenna units is relative and does not need to be fixed, as long as the information transmission rule of the antenna unit matches the corresponding detection method in the user equipment.

[0026] Step s102, according to the uplink signal strength, select the first antenna unit and the second antenna unit to form a virtual base station, the first antenna unit is an odd ante...

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Abstract

The invention discloses a shifting method for the seamless area, comprising: dividing the distributed antenna unit into odd type and even type at intervals; selecting the first antenna unit and the second antenna unit to form the virtual base station according to the upward signal intensity; the first antenna unit and the second antenna unit transmit the signal signs with different codes to the user device; while processing the area-crossing shift, updating the virtual base station according to the upward signal intensity; transmitting the to-be transmitted data to the antenna unit needing the shift to a same type antenna unit. The invention also discloses a shifting system for the seamless area. The complex of the invention is low, which can improve the system performance of the area-crossing shift by using the simple cooperation of the distributed antenna; the specific representation is that: the statistic average value of the communication noise radio at the subdistrict boundary is significantly enhanced and the distribution of the communication noise radio at the subdistrict boundary is significantly improved, in the other words, the communication interruption performance is significantly enhanced.

Description

technical field [0001] The invention relates to the technical field of communication signal processing, in particular to a seamless handover method and system. Background technique [0002] In the high-speed railway communication scenario, due to the high-speed movement of communication terminals, frequent handovers are required, and the signal quality drops sharply at the cell boundary, which greatly damages the reliability of communication. [0003] At present, a distributed wireless communication system adopts the framework of distributed antenna, distributed optical fiber, distributed computing and distributed network to realize a new generation of wireless communication. Distributed antennas are one of the important features of distributed wireless communication systems. Due to the introduction of distributed optical fibers, flexible and efficient cooperative processing can be performed between distributed antennas to combat the time-varying and multipath effects of wir...

Claims

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Application Information

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IPC IPC(8): H04Q7/38
Inventor 王京冯伟赵明周世东张秀军高群毅
Owner EASYWAY
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