Method for implementing AT command commutation
A technology of commands and conversion tables, applied in transmission systems, electrical components, etc., can solve problems such as narrow application range, poor reliability, and heavy workload, and achieve the effects of enhanced versatility, high reliability, and easy maintenance
Inactive Publication Date: 2008-04-02
ZTE CORP
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Problems solved by technology
Therefore, different application layer software needs to be developed on the basis of different protocol stacks, which requires a lot of work, a lot of development time and resources, poor reliability and high maintenance difficulty
And it can only be used with the corresponding protocol stack, and it is difficult to transplant to other protocol stacks. Therefore, the application layer software developed by spending a lot of time and resources has poor versatility and narrow application range
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[0031] The method of the present invention can adopt the concrete realization of standard AT command conversion system, and its framework is as shown in Figure 4, comprises:
[0032] 1. Construct a standard AT command conversion system 1 on top of the protocol stack; so that the application layer software does not directly interact with different protocol stacks, but only interacts with the only standard AT command set.
[0033] 2. The main functional modules inside the system 1 are divided into: application layer interface module 13 , protocol stack interface module 12 , command conversion module 14 , response conversion module 15 and AT command set database 11 .
[0034] 3. The application layer interface module 13 is the interface between the system 1 and the upper application layer software. This module provides several callable system platform functions and a response buffer for transmitting standard AT commands 41 and responses 42 between the system 1 and the upper appli...
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The present invention relates to a method for implementing AT command exchange, using a database (11) containing standard AT command set and protocol stack AT command set for exchanging relative data, and being applied between application layer software and terminal protocol stack, including: receiving standard AT command (41) from application layer software, transforming the standard AT command to protocol stack AT command (43) using database (11) and transmitting them downwards; receiving AT response (44) from protocol stack, and transforming the protocol stack AT response to standard AT response (42) using database (11) and transmitting them upwards. The method exchanges the standard AT command set and various protocol AT command set, so as to make the application layer software use uniform standard AT command set without transferring various protocol stack AT command set directly, solves the problem that the application layer software is compatible various protocol stack, enhancing the versatility of the application layer software, and having high reliability as well as easy maintenance.
Description
technical field [0001] The invention relates to computer communication terminal applications, in particular to a method for realizing AT command conversion. Background technique [0002] The Attention Commands command, referred to as the AT command, was invented by Hayes and has now become a de facto standard, such as: ITU-T V.250, 3GPP 27.007, 3GPP 27.005 and other protocols, and is used by modem manufacturers to communicate in a character form command language. At present, the vast majority of 2G and 3G mobile phones and wireless network cards use this communication method. [0003] Because AT commands can realize communication connection and data transmission control, they are widely used in voice communication, data communication, fax and other fields. In the ITU and 3GPP mobile terminal specifications, the AT commands that terminal equipment must use are given to control mobile terminal functions and GSM / UMTS network services. The connection is shown in Figure 1, 2 o...
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IPC IPC(8): H04L29/06
Inventor 张欣赵勇刘杰杰
Owner ZTE CORP