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Software upgrade method for remote RF unit in radio communication system

A technology of remote radio frequency unit and wireless communication system, applied in wireless communication, electrical components, transmission system, etc., to achieve the effect of reducing network traffic, rapid upgrade, and reduction of increase

Inactive Publication Date: 2010-06-23
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the RRU, because it is generally not easy to reach, its maintenance is usually carried out through the near-end BBU, so the maintenance is more difficult

Method used

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  • Software upgrade method for remote RF unit in radio communication system
  • Software upgrade method for remote RF unit in radio communication system
  • Software upgrade method for remote RF unit in radio communication system

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0022] The invention is mainly applied to the upgrading of remote base stations. Usually, it is the optical interface module on the RRU to ensure reliable communication between the current level and the next level RRU and the BBU through the optical fiber. The optical interface module software is usually relatively large, and multiple RRUs may start at the same time, so if the RRUs all request software from the BBU after startup, the network may be busy and the BBU load will increase. Therefore, the optical interface module is placed on the built-in memory of the RRU. , get new version software from BBU only when upgrade is needed.

[0023] Store a text file, such as RruSwVer.ini, on the memory of the RRU. The upgrade status of the optical interface module software can be placed in the file for reading and writing by the high-level software and startup soft...

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PUM

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Abstract

The invention is related to method for upgrading software in wireless communication system in order to guarantee that RRU can be upgraded reliably, stably, and rapidly. The invention includes steps: (1) radio frequency unit (RFU) at remote end loads software of optical interface module (OIM) in current version, and reports the version of software to up level; (2) baseband pool unit determines whether software of OIM is needed to upgrade; if yes, then RFU at remote end down loads software of OIM in new version from the baseband pool unit, and saves it to built in memory and loads and runs it; if not, then ending step; (3) RFU at remote end detects whether communication link on the optical interface is normal; if yes, then upgrading operation is successful; if not, then RFU at remote end resets and loads software of OIM in old version. The invention reduces increment of network flux caused by that multiple RRUs obtain software of OIM from BBU at same time.

Description

technical field [0001] The invention relates to a software upgrading method in a wireless communication system, in particular to a software upgrading method of a remote radio frequency unit in a wireless communication system. Background technique [0002] The development trend of the wireless communication system architecture is to separate the radio frequency unit from the baseband control unit, and connect the two through long-distance transmission means (optical fiber or cable), so that the radio frequency unit can be placed in various places where needed. The advantage of this architecture is that the entire system is divided into two relatively independent parts for independent development, and multiple radio frequency units share a baseband control unit. This not only reduces the cost, but also improves the flexibility of networking and network coverage, and facilitates engineering installation. [0003] Here, the two divided parts are respectively referred to as a b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/02H04L12/24H04W8/24
Inventor 郭军洪
Owner ZTE CORP
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