Channel time allocation method in high rate WPAN
First Claim
1. A channel time allocation method in a wireless network that is synchronized by a synchronization signal broadcasted from a coordinator, the method comprising:
- transmitting to the coordinator by a device linked to the wireless network, a channel time allocation request command including a type of an application data and a property of the application data other than the type; and
the coordinator allocating a channel time as an allocated channel time based on the type and the property of the application data in the channel time allocation request command, inserting information of the allocated channel time to the synchronization signal, and broadcasting the synchronization signal to the devices,wherein the channel time allocation request command is generated by attaching a field as an attached field representing the type and the property of the application data to a channel time request command, andwherein the field representing the type and the property of the application data contains the size of the largest I frame, the size of the largest P frame, and the size of the largest B frame.
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Accused Products
Abstract
Disclosed is a channel time allocation method in a high rate WPAN and a wireless system using the same. In the WPAN environment synchronized by a synchronization signal broadcasted from a coordinator, the channel time allocation method includes transmitting a channel time allocation request command corresponding to a property of an application data to be transmitted to the coordinator by any one of devices linked to the WPAN, and the coordinator allocating the channel time, inserting information of the allocated channel time to the synchronization signal, and broadcasting the synchronization signal to the devices. Accordingly, the channel time is allocated to fit for the property of the VBR stream data such as the MPEG-2 video so that the QoS of the VBR stream is provided. At the same time, reliability of the transmission of I frame is enhanced so that success rate of decoding the frame is increased.
25 Citations
15 Claims
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1. A channel time allocation method in a wireless network that is synchronized by a synchronization signal broadcasted from a coordinator, the method comprising:
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transmitting to the coordinator by a device linked to the wireless network, a channel time allocation request command including a type of an application data and a property of the application data other than the type; and the coordinator allocating a channel time as an allocated channel time based on the type and the property of the application data in the channel time allocation request command, inserting information of the allocated channel time to the synchronization signal, and broadcasting the synchronization signal to the devices, wherein the channel time allocation request command is generated by attaching a field as an attached field representing the type and the property of the application data to a channel time request command, and wherein the field representing the type and the property of the application data contains the size of the largest I frame, the size of the largest P frame, and the size of the largest B frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A wireless system operating in a wireless network comprising:
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devices linked to the wireless network; and a coordinator to broadcast a synchronization signal to the devices to synchronize the devices, wherein if any one of the devices transmits a channel time allocation request command including a type of an application data and a property of the application data other than the type to the coordinator, the coordinator allocates a channel time as an allocated channel time based on the type and the property of the application data in the channel time allocation request command, inserts information of the allocated channel time in the synchronization signal, and broadcasts the synchronization signal to the devices, and the devices transmit and receive the application data based on the allocated channel time, wherein the channel time allocation request command is generated by attaching a field as an attached field representing the type and the property of the application data to a channel time request command, and wherein the field representing the type and the property of the application data contains the size of the largest I frame, the size of the largest P frame, and the size of the largest B frame. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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Specification