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Fast initializing method for asymmetric digital user loop local side apparatus

A technology of digital subscriber ring line and central office equipment, applied in the field of access technology, can solve problems such as frequent disconnection of users, achieve the effect of saving initialization time and improving service quality QoS

Inactive Publication Date: 2003-10-15
ZTE CORP
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AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method for quickly initializing the central office equipment of an asymmetrical digital subscriber loop line (ADSL), which can greatly shorten the time required for the ADSL central office equipment to restart due to failures in continuous operation. Initialization time, to solve the problem of frequent disconnection of users due to the reset of the central office equipment

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  • Fast initializing method for asymmetric digital user loop local side apparatus
  • Fast initializing method for asymmetric digital user loop local side apparatus
  • Fast initializing method for asymmetric digital user loop local side apparatus

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Embodiment Construction

[0020] The specific implementation of the ADSL fast initialization of the present invention will be further described below in conjunction with the accompanying drawings.

[0021] figure 1 It is a schematic diagram of the circuit for realizing the ADSL fast initialization method of the present invention, which provides a hardware control environment for fast initialization of N ADSL sets. The purpose of quick initialization is to realize the initialization of the SAR module by the CPU monitoring unit under the premise of protecting the running state of the ADSL unit. Among them, CPU_IO1 and CPU_IO2 are the IO port signals of the CPU, respectively control CTL_TXCS and CTL_RXCS after being driven by the line; CTL_RST is the reset control signal of the ADSL chip.

[0022] Whether the ADSL central office equipment is in the continuous operation state can be realized through the CPU unit’s detection of the running state of the ADSL chip. If the CPU can read the READY or LINK state...

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Abstract

The invention provides a method of initializing quickly an asymmetrical Digital Subscriber Loop device. The method includes, when initializing ADSL circuit, the system determines whether the device is operating continuously, if yes, enters the initialization flow; the ADSL control sends out CTL_RXCS and CTL_TXCS signals with high levels, and the data receiving / sending chip select of the UTOPIA port in the slave mode is in the prohibition state; CPU increases the RESET signal of ADSL; CPU resets the UTOPIA port and other members or ports of the SAR module in the master mode which are required to be reset; after resetting, CPU decreases CTL_RXCS and CTL_TXCS. By the invention, initialization will be very fast. The use end of ADSL can't detect initialization of the area end. Data access won't disconnect, which improves greatly the service quality of ADSL devices.

Description

technical field [0001] The invention relates to a quick initialization method of an asymmetrical digital subscriber loop line (ADSL) central office equipment, which belongs to the access technology in the field of data communication. Background technique [0002] In the ADSL central office equipment, the initialization of the equipment is generally realized by resetting the entire circuit. However, since the current ADSL circuit needs to go through complex processes such as code download, chip self-test, central office user-side rate adaptation, and connection from reset to normal operation, it often takes more than ten seconds or even tens of seconds from reset to successful connection. Especially when multiple ADSL sets are downloaded sequentially, the required time will be the product of the number of sets and the initialization time of a single set. When the ADSL device is powered on for the first time, these processes must go through, because at this time no access ser...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/16H04L12/24H04L12/26H04M11/06
Inventor 李建中余伟潘雄
Owner ZTE CORP
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