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Apparatus scanning method

A scanning method and equipment technology, applied in electrical components, transmission systems, etc., can solve the problems of inoperability, long scanning time, low scanning efficiency, etc., to improve efficiency and speed, solve the problem of long scanning times, and reduce repeated scanning. effect of times

Active Publication Date: 2006-11-15
HUAWEI TECH CO LTD
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Problems solved by technology

[0013] As mentioned above, the disadvantage of the exhaustive scanning method in the prior art is that the number of scans is large, and in the most pessimistic case, it needs to scan more than 62 to the 17th power, the scanning efficiency is low, the scanning time is long, and it is practically inoperable

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  • Apparatus scanning method

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Embodiment Construction

[0021] In order to describe the technical scheme of the present invention conveniently and intuitively, in combination with figure 1 The binary tree structure diagram shown will be described in detail.

[0022] figure 1 Describes the binary structure diagram of the Unique ID (unique identification) and all possible scanning paths.

[0023] As shown in the figure, because the Unique ID is a string of 19 characters, the upper binary tree has 153 layers (a character in binary form is 8 bits, and 19 characters is 19×8=152 bits), and the number of nodes in each layer is 2 T power (T is the layer encoding, starting from the Root layer and starting from 0).

[0024] The leaf nodes of the binary tree are the complete set of binary values ​​of the Unique ID, which are all possible values ​​of the 19-bit string in binary form. The path from the ROOT (root) node (T=0) to a certain leaf node represents a successful scanning path of the unique ID of the antenna device, and the value of ...

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Abstract

The invention is a scanning method for a device, comprising: device controller uses binary tree structure to construct binary unique identification and mask, and firstly makes ergodic searching of the binary tree by ergodic process and executing the steps as follows for each searched node: the device controller broadcasts a scanning command comprising the binary unique identification and mask; the device receives the scanning command and making matching procession on the unique identification in the scanning command and its own sequence number: if matching, sending a response containing its sequence number to the device controller. And the scanning method can largely reduce number of repeated scanning times and largely raising scanning efficiency and rate of the device, and solving the problem that scanning by exhaustion process has many scanning times and spends long time.

Description

technical field [0001] The invention relates to a device scanning method, in particular to a device scanning method using a binary tree algorithm. Background technique [0002] ALD (antenna device) is widely used in WCDMA, CDMA, GSM base station equipment. The management of antenna equipment by base station equipment currently exists in the AISG protocol (described in [1] AISG Issue 1.0 Control interface for antenna line devices, Antenna Interface Standards Group, Standard No. AISG1: Issue 1 29 October 2003) and WCDMA's 3GPPTS 25.460 / 1 / 2 / 3 protocol (document [2]: described in 3GPP TS 25.462 3rd Generation Partnership Proiec), but these two protocols mainly focus on defining and standardizing the functions and interfaces of antenna devices. For antenna devices responsible for antenna device management There is no uniform specification for the behavior and functionality of the controller. [0003] One example is the antenna device scan function. Both the AISG and 3GPP TS 2...

Claims

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Application Information

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IPC IPC(8): H04L29/06
Inventor 周荣国
Owner HUAWEI TECH CO LTD
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