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Method for the base band unit to reset the multi-level remote RF unit

A technology of remote radio frequency unit and baseband unit, applied in electrical components, radio transmission system, wireless communication, etc., can solve problems such as unrealization, and achieve effects of avoiding influence, good compatibility, and improving reliability

Inactive Publication Date: 2009-08-19
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology can not realize the independent reset operation of a certain RRU without affecting the work of other RRUs, and can reset the RRUs of the entire link

Method used

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  • Method for the base band unit to reset the multi-level remote RF unit
  • Method for the base band unit to reset the multi-level remote RF unit
  • Method for the base band unit to reset the multi-level remote RF unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The present invention takes the implementation in the CPRI interface as an example to illustrate the specific implementation.

[0020] After the connection is established, the BBU sends the identification number of each RRU to each RRU respectively, and the value range is [0, 0FEH]. Such as figure 2 As shown, in the reset information defined by the CPRI standard, one bit of the control word CW130 occupying the control word channel No. 130 is the reset bit, and when this bit does not request a reset, it sends 0, and when a reset is requested, the RRU will receive 10 The reset information in which the reset bit is 1 above. In the control word reserved for equipment manufacturers, define the control word CW16 No. 16 in the control word channel as the reset address, and the reset address is one byte.

[0021] When the BBU intends to reset a certain RRU, for example, when performing a reset operation on an RRU whose identification number is n (0≤n≤0FEH), first set the res...

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Abstract

The invention discloses a method for a baseband unit to reset a multi-level remote radio frequency unit. First, the baseband unit sets the reset bit and reset address in the reset information control word, and sends the reset information; then each remote The end radio frequency unit sequentially receives the reset information and detects it. If the detection result is a reset request and the reset address in the reset information is consistent with the identification number of the remote radio unit that detected the reset information or the reset address is global If the identification number is reset, the remote radio frequency unit is reset. The base station unit BBU of the technical solution of the present invention can independently reset the RRUs without affecting the work of other RRUs, improves the reliability of the system, and avoids the impact of local failures on the global business, and supports the entire link It has a reset function and has good compatibility with the existing technology from the scheme, and the realization is simple and convenient.

Description

technical field [0001] The invention relates to a method for a baseband unit in a wireless communication system to reset a multistage remote radio frequency unit. Background technique [0002] In recent years, the development of wireless communication system architecture has gradually evolved into such a trend: separate the BBU (Base Band Unit, baseband unit) from the RRU (Remote Radio Unit, remote radio frequency unit), and use long-distance transmission means (such as optical fiber , cables) connect the BBU with multiple RRUs, and then place the RRUs in various places where they are needed. This architecture improves the flexibility of networking on the one hand, and reduces the maintenance cost of the network on the other hand. Therefore, this architecture is more and more recognized by users, and there are more and more application occasions. In recent years, this architecture has been written into certain industry standards, such as OBSAI (Open Base Station Architectu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q7/34H04B7/00H04W88/08
Inventor 赵国峰
Owner ZTE CORP
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