Scheduling method of high speed wireless personal network protocol based on channel

A scheduling method and wireless technology, applied in the directions of wireless communication, network traffic/resource management, access restriction, etc., can solve problems such as inability to fully utilize channel resources, inability to adapt to the QoS requirements of different types of data streams, etc. The effect of utilization and overall performance

Inactive Publication Date: 2009-05-27
SHANGHAI RES CENT FOR WIRELESS COMM
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Problems solved by technology

[0030] The purpose of the present invention is to provide a channel-based scheduling method in the high-speed wireless personal network protocol, which solves the problem that the existing method cannot make full use of channel resources and cannot adapt to the QoS requirements of different types of data flows, and overcomes the impact of channel fading on the network. performance impact

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  • Scheduling method of high speed wireless personal network protocol based on channel
  • Scheduling method of high speed wireless personal network protocol based on channel
  • Scheduling method of high speed wireless personal network protocol based on channel

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Embodiment Construction

[0054] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0055] The channel-based scheduling method in the high-speed wireless personal network protocol, its application scope is: the transmission of real-time and non-real-time data in the high-speed wireless personal network based on the IEEE 802.15.3 protocol. The premise is: 1) The transmission of each data stream can be adaptively adjusted to the transmission rate, which can be realized by adding a feedback mechanism in the ACK frame; 2) Each data stream can inform the network control device (PNC) of the scheduling in real time required parameters.

[0056] The system design of the channel-based scheduling method in the IEEE 802.15.3 high-speed wireless personal network protocol proposed by the present invention is as follows: image 3 shown. The scheduling process is as follows:

[0057] 1) After the network device completes the data stream registrati...

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Abstract

The invention relates to a dispatching method based on channel in high speed wireless personal web protocol. In real time and non-real time data transmission in high speed wireless personal network based on IEEE 802.15.3 protocol, channel status information is fed back and collected for every data stream of user by modifying protocol; data stream is ranked by integrative balancing according to QoS request of every data stream and endowed with different dispatching priority, thereby effectively overcoming channel fading influence to network performance and promoting channel utilization rate of system.

Description

technical field [0001] The present invention relates to the technical field related to the wireless personal network, in particular to the channel-based scheduling method in the high-speed wireless personal network protocol. Background technique [0002] The high-speed wireless personal network protocol based on IEEE 802.15.3 adopts time-division multiple access and centralized channel allocation mechanism to provide data transmission between multiple users. In this standard, the most basic time structure is a superframe (such as figure 1 ), each superframe includes several channel time slot assignments (CTAs) for data transmission between devices specified by the CTAs. CTAs are allocated by a network control device (PNC) according to a specific scheduling algorithm. The allocation result is broadcast by the network control device in a beacon frame (Beacon) at the beginning of each superframe. Management Channel Time Slot Assignment (MCTA) is a special CTA used for signal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/16H04W48/10H04W72/04H04W72/12
Inventor 杨光迪林如锋杜阳戎璐
Owner SHANGHAI RES CENT FOR WIRELESS COMM
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