Method for configuring initial information of multi-stage far-end radio frequency unit via control word

A remote radio frequency unit and initial information technology, applied in wireless communication, communication between multiple stations, electrical components, etc., can solve problems such as complex transmission methods, and achieve the effect of ensuring flexibility and simple and rapid transmission methods

Inactive Publication Date: 2010-02-10
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, the RRU must first obtain its own ID number, obtain its own initial information through the ID number, and then establish a high-level communication link with the BBU, and the transmission method is too complicated

Method used

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  • Method for configuring initial information of multi-stage far-end radio frequency unit via control word
  • Method for configuring initial information of multi-stage far-end radio frequency unit via control word
  • Method for configuring initial information of multi-stage far-end radio frequency unit via control word

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Embodiment Construction

[0032] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0033] image 3 Be the flow chart of the method proposed by the present invention, comprise steps:

[0034] Step a. Set a control word Index in the control word between the BBU and the RRU, and initialize its value m to 0.

[0035] The Index indicates the number of the RRU starting from the BBU, which is 0, 1, 2, . . . in sequence. Taking the CPRI interface as an example, in the Vendor Specific part of the 256 control words of CPRI, define the address occupied by Index as control word 16, such as Figure 5 shown.

[0036] Step b. Set n information data groups in the control word between BBU-RRU according to the maximum possible cascading number n of RRU, respectively D 0 、D 1 、D 2 、...D n-1 , and initialized.

[0037] For example, define D 0 Use control word 17, D 1 Use control word 81, D 2 Use control word 145, D 3 Use control word ...

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Abstract

The invention includes steps: (1) setting up control word Index in control words between BBU and RRU, and initializing value m as 0; (2) setting n pieces of information data group as D0, D1, D2, ... Dn-1 respectively in control words between BBU and RRU; (3) BBU sends Index information and the said array of information data to RRU m; (4) based on value m in Index, RRU m down loads data in Dm, andassigning it to this RRU; (5) RRU adds 1 to value of Index, and sends Index and initialized information data group to RRU in next stage; (6) repeating step (4) and (5) till m=n-1. The invention can configure each piece of initialization information of RRU to all RRU at one time. Thus, RRU can obtain needed initialized configuration information rapidly, and build up communication connection with BBU.

Description

technical field [0001] The present invention relates to a BBU (Base Band Unit, base band unit) and an RRU (Remote Radio Unit, remote radio unit) of a wireless communication system, especially a method for the base band unit to configure initial information of multi-stage remote radio units. Background technique [0002] In recent years, the development of wireless communication system architecture has gradually evolved into such a trend: separate the BBU from the RRU, and connect the BBU to multiple RRUs through long-distance transmission means (such as optical fibers, cables), and then place the radio frequency unit in the Everywhere you need it. 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 industr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q7/34H04L29/12H04B7/26H04W16/26H04W88/08
Inventor 赵国峰
Owner ZTE CORP
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