Distribution type antenna communication system and handover switching method
A technology of distributed antenna and communication system, applied in the field of distributed antenna communication system and handover, can solve problems such as high difficulty and low anti-interference ability, and achieve the effect of reducing difficulty, improving anti-interference ability and improving system capacity
Active Publication Date: 2015-04-22
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology
[0004] However, the distributed antenna communication system in the prior art has low anti-interference ability, and it is very difficult for the mobile terminal to access the target cell during handover
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[0027] 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.
[0028] The present invention proposes a new distributed wireless communication system using a 180-degree antenna, which is called a Cooperative Distributed Semi-directional Antenna System (CDSAS) in the present invention.
[0029] In a CDSAS cell, signal processing, radio resource management and other processes are completely separated from the radio signal receiving / transmitting process, and are specially processed by different independent units. The central processing unit performs signal processing, radio resource management, and radio signal receiving / transmitting processing Completed by the remote antenna unit, the remote antenna unit includes an omnidirectional anten...
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The invention relates to the technical field of wireless communication and discloses a distribution type antenna communication system which comprises a plurality of small areas. Each small area comprises a center processing unit and a far pull antenna unit which are mutually connected. The center processing unit is used for executing signal processing and wireless resource management. The far pull antenna unit is used for transmitting and receiving signals. A method for conducting handover switching by utilizing the system is further provided. The the cooperation type 180-degree antenna distribution type communication system is formed by applying a 180-degree antenna to the wireless communication technology. The system cam improve anti-jamming capability, reduces difficulty of a mobile terminal connected into a target small area in the handover process, reduces handover switching times and improves system capacity.
Description
technical field [0001] The invention relates to the technical field of wireless communication, in particular to a distributed antenna communication system and a handover method. Background technique [0002] With the geometric growth of wireless communication services, future wireless communication systems will mainly face the challenges of high transmission rate and spectrum efficiency, which also requires innovative improvement and development of future wireless network architecture. At the same time, as information and communication technology (ICT) plays an increasingly important role in the emission of greenhouse gases and other air pollutants, green communication has become an inevitable development of communication technology, and energy efficiency has become an important evaluation of future wireless communication systems. index. [0003] The Distributed Antenna System (DAS) has high spectral efficiency and large system capacity. Therefore, it has recently received ...
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IPC IPC(8): H04W16/24H04W36/18H04B7/02
Inventor 许晓东陶小峰罗成金刘雅张平陈鑫王达唐智灵
Owner BEIJING UNIV OF POSTS & TELECOMM