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Data descriptor-based medium access control (MAC) software and hardware interaction method and hardware realization device

A technology of data description and interaction method, which is applied in the direction of electrical components, wireless communication, wireless network protocol, etc., and can solve problems such as complex operation and slow response

Inactive Publication Date: 2011-05-18
INST OF MICROELECTRONICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the disadvantages of slow response and complicated operation caused by single use of interrupt control

Method used

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  • Data descriptor-based medium access control (MAC) software and hardware interaction method and hardware realization device
  • Data descriptor-based medium access control (MAC) software and hardware interaction method and hardware realization device
  • Data descriptor-based medium access control (MAC) software and hardware interaction method and hardware realization device

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Embodiment Construction

[0073] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0074] The present invention proposes a MAC software-hardware interaction method based on data descriptors and its hardware implementation device, and proposes a division scheme based on the software and hardware of the MAC controller. The software part will send or receive frame data information and its control information this time. Form the sending or receiving data descriptor (Tx / Rx Descriptor) according to the specified format, and send it to the hardware part to complete the control operation of the frame data sending or receiving; open the system control / status register file (Sys_Ctrl / Sys_Sta Register Banks) and send / receive status register bank (Tx / Rx StatusRegister Banks) to respectively realize the conventional ...

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Abstract

The invention discloses a data descriptor-based medium access control (MAC) software and hardware interaction method and a hardware realization device for data descriptor-based MAC software and hardware interaction. The method comprises the following steps of: forming a transmission or reception data descriptor by frame data information which is transmitted or to be received and the control information of the frame data information according to a given format, and transmitting the transmission or reception data descriptor to a hardware part to finish a control operation on frame data transmission or reception by using a software part; enabling a system control / state register stack and a transmission / reception state register stack in the designing of a hardware architecture to realize routine transmission and reception control between software and hardware and the control and state feedback of the data transmission respectively; and resolving the descriptor and controlling the data transmission and reception operations of a protocol control unit by using a transmission / reception descriptor buffer controller. In the method, the software part can perform real-time control and state monitoring on the hardware part in an MAC controller so as to avoid the single use of interruption control causing the shortcomings of slow response, operation complexity and the like; and the method and device have the characteristics of flexibility and high efficiency.

Description

technical field [0001] The present invention relates to the technical field of design and implementation of a Medium Access Control (MAC) layer in the field of wireless local area network (Wireless Local Area Network, WLAN) network communication, in particular to a method that uses software and hardware to work together and utilizes a data descriptor mechanism A MAC software-hardware interaction method and a hardware implementation device for performing software-hardware task instruction control and data transmission. Background technique [0002] Wireless local area network (Wireless Local Area Network, WLAN) is becoming increasingly popular at an astonishing speed and penetrates into various fields of daily life and work. As a key functional module for realizing wireless data transmission—Medium Access Control (MAC) protocol—a large number of various implementation methods have also emerged. [0003] Compared with wired transmission, the IEEE 802.11MAC protocol has the fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W80/00
Inventor 王海欣吴斌周玉梅
Owner INST OF MICROELECTRONICS CHINESE ACAD OF SCI
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