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Bus scheduling device and method

A scheduling device and bus technology, applied in the direction of bus network, data exchange through path configuration, digital transmission system, etc., can solve the problems of packet loss, low system data transmission efficiency, data transmission security cannot be guaranteed, etc. Effects of Packet Phenomenon

Inactive Publication Date: 2012-09-05
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This mechanism may cause packet loss due to unstable links, which cannot guarantee the security of data transmission, and because it needs to continuously send read and write requests to the peer interface, the peer interface needs to respond to read and write requests frequently, resulting in Overall system data transmission inefficiency

Method used

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  • Bus scheduling device and method
  • Bus scheduling device and method

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Embodiment Construction

[0030] The idea of ​​the bus scheduling device and method of the present invention is to send a write request or read request to the peer interface once, and after receiving the reply from the peer interface, it does not need to send the read request or write request again, and continuously receives and sends the scheduled request to the internal co-processing module. The amount of data packets or the processed data packets accumulated to a predetermined amount are sent to the peer interface at one time. The advantage of this mechanism is to realize batch receiving and batch sending of data packets, which can prevent packet loss in the middle process, avoid frequent sending of read and write requests, and improve transmission efficiency.

[0031] The predetermined amount of data packets can be a frame of data packets or a group of data packets or several data packets divided according to data characteristics. The specific number of data packets to be sent in batches can be flex...

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Abstract

The invention provides a bus dispatching device and a method. The bus dispatching device comprises a receiving unit and a transmitting unit, wherein, the receiving unit continuously receives data packets of scheduled amount after transmitting a writing request to an interface at an opposite end, or the transmitting unit transmits the processed data packets accumulated to the scheduled amount to the interface at the opposite end by one-time operation after transmitting a reading request to the opposite end. The invention receives and / or transmits the data packets in batches, which can prevent packet-loss phenomenon in the intermediate process, and avoid the frequent transmitting of reading and writing requests and the waiting for response, thus guaranteeing the reliability of data transmission and improving the transmission efficiency.

Description

technical field [0001] The invention relates to a mobile communication system, in particular to a bus scheduling device and method used for device interconnection in the mobile communication system. Background technique [0002] IEEE802.16 technology is a broadband wireless access technology. It provides services to users through access to the core network. The core network usually adopts a network based on IP protocol. The physical layer of IEEE802.16e can choose single carrier, Orthogonal Frequency Division Multiplexing (OFDM) and Orthogonal Frequency Division Multiple Access (OFDMA). The single carrier option is mainly for compatibility with line-of-sight transmission in the 10GHz to 66GHz band. IEEE 802.16e can support 128, 512, 1024 and 2048 different subcarrier numbers for the OFDMA physical layer, but the subcarrier spacing remains unchanged, and the signal bandwidth is proportional to the number of subcarriers. This technology is called scalable OFDMA (Scalable OFD...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/40H04L12/417H04L12/56
Inventor 吕闻吴枫
Owner ZTE CORP