Apparatus and method for implementing efficient redundancy and widened service coverage in radio access station system

Abstract

Disclosed is an apparatus and a method for implementing efficient redundancy and an expanded service coverage in a Radio Access Station (RAS) system. In the RAS system, if the main processor unit generates switching control signals in response to the sensed failures on sensing a failure in any of the channel cards and the transceivers or a failure in any of the high- power amplifiers, all supporting M (i.e., the number of FAs equal to or more than three) and K (i.e., the number of sectors equal to or more than three), between the transceivers and the predetermined Time Division Duplex (TDD) switches connected to the antennas, the RF switch unit switches a path based on the generated switching control signals so as to substitute the failed module either by one additional redundancy transceiver per M and K or by one additional redundancy high-power amplifier per M and K. As a result, an efficient N+l redundancy structure is embodied.

Description

technical field [0001] The present invention relates to a wireless communication system, in particular to a wireless access station system based on standards such as IEEE802.16d / e, Wireless Broadband Internet (WiBro), and Worldwide Interoperability for Microwave Access (WiMAX) to realize effective redundancy. Apparatus and methods for additional and extended service coverage. Background technique [0002] Recently, in order to realize the fourth-generation mobile communication, the whole society is conducting intensive research. In fourth-generation mobile communications based on IEEE 802.16d / e, Wireless Broadband Internet (WiBro), Worldwide Interoperability for Microwave Access (WiMAX) standards, etc., satellite networks, wireless LAN networks, digital audio broadcasting and video broadcasting networks, etc. Combined as a single network linking parts that work together, it is now possible, at best, to provide users with coordinated services, even in any network, eg WiBro, ...

AI Technical Summary

Problems solved by technology

[0007] Therefore, when the connection of signal lines becomes complicated due to the use of multiple redundant modules in the existing RAS system, there arises a problem that it is difficult to materialize the redundant structure, and the cost is very high

That is, due to the use of multiple expensive circuit parts (such as channel cards, transceivers, or high-power amplifiers, etc.) that construct redundant modules, the cost increases. Increased volume when channel cards, transceivers or high power amplifiers must be used in 3FA and 3-sector FA and sector-operated RAS

[0008] In addition, when complex connection signal lines between channel card and transceiver or between transceiver and high power amplifier etc. in the case where multiple redundant modules are used above or for switching to redundant modules When the number of switches is greatly increased, it cannot meet the economic feasibility

[0009] In addition, since the carrier frequency band used in the communication with the PSS is utilized in order to communicate with the transponder 160 in the existing RAS system, when data is transmitted to or received from the transponder 160, the Increased burden of frequency conversion or down conversion

Images